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Автор: Grafiati

Опубліковано: 10 грудня 2022

Оновлено: 28 січня 2023

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1

Yuqi, Yan, Ye Wanting, Liu Xin, Xu Jie, and Lian Lihua. "Studying electronic blood pressure monitor digital recognition algorithm based on computer vision and design." Современные инновации, системы и технологии - Modern Innovations, Systems and Technologies 2, no. 4 (December 20, 2022): 0264–77. http://dx.doi.org/10.47813/2782-2818-2022-2-4-0264-0277.

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This study proposed an intelligent algorithm based on digital image processing and character recognition to address the current situation in which the National Medical Products Administration promulgated the relevant regulations on the complete prohibition of the use of mercury sphygmomanometers in 2020 and the currently widely used electronic sphygmomanometers need to undergo regular verification and quality testing. The intelligent algorithm made it possible to automatically acquire the electronic sphygmomanometer indication value during quality assurance or verification. The images of the electronic sphygmomanometer were captured using a Raspberry Pi-connected video camera head; in the software development, automatic detection of the electronic sphygmomanometer's indication value was achieved by running the computer vision-based OpenCV library on the Raspberry Pi and utilizing image preprocessing techniques like scale transformation, grayscale conversion, Gaussian smoothing and edge detection, and character segmentation. The development of intelligent devices for the automatic verification of electronic sphygmomanometers has a technical foundation in the research and design of the digital recognition algorithm, and it has a certain reference value for character recognition of electronic instruments or the creation of automatic instrument indication value recording devices.

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2

Okaekwu, A. E., S. F. Usifoh, and U. F. Babaiwa. "KNOWLEDGE OF MICROBIAL CONTAMINATION OF SPHYGMOMANOMETERS IN HEALTHCARE FACILITIES IN BENIN CITY." African Journal of Health, Safety and Environment 2, no. 2 (December 13, 2021): 183–95. http://dx.doi.org/10.52417/ajhse.v2i2.177.

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Nosocomial infections are infections that patients acquire while receiving treatment for other health conditions within a healthcare setting or facility. This study aims to determine the level of awareness of healthcare providers on the role sphygmomanometers play in the spread of nosocomial infections and to isolate microorganisms in sphygmomanometer cuffs used in healthcare facilities. A structured, self-administered questionnaire was designed and administered to healthcare practitioners of two tertiary hospitals and community pharmacies in Benin City. Microbial contamination of sphygmomanometer cuffs was investigated following the standard isolation and identification techniques for microorganisms. A total of 217 responded; 27.2% pharmacists, 33.2% doctors and 39.6% nurses. The majority (50.2%) were between the ages of 20 – 30 years. 65.4% were females and 51.6% were single. Ninety-four percent (94%) of the total respondents said that microorganisms are present in the inner cuffs of sphygmomanometers, 76% said microorganisms on the cuffs are sources of nosocomial infections while 80.6% said patients can be infected with the use of sphygmomanometers. A total of 192 swabbed samples were collected from 64 cuffs in the healthcare facilities, 46.5% were bacteria and 53.5% fungi. The most isolated organisms were candida species 42(21%), Staphylococcus aureus 41(20.5% of which 28(68.3%) were methicillin resistant.), Mucor 34(17%), Aspergillus species 23(11.5%). Ninety four percent (94%) of respondents had good knowledge that blood pressure cuffs play a role in the spread of nosocomial infections. The sphygmomanometer cuffs were contaminated with pathogenic microorganisms implicated in nosocomial infections.

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3

Rimbi, Mary, Immaculate Nakitende, Teopista Namujwiga, and John Kellett. "How well are heart rates measured by pulse oximeters and electronic sphygmomanometers? Practice-based evidence from an observational study of acutely ill medical patients during hospital admission." Acute Medicine Journal 18, no. 3 (July 1, 2019): 144–47. http://dx.doi.org/10.52964/amja.0767.

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Background: heart rates generated by pulse oximeters and electronic sphygmomanometers in acutely ill patients may not be the same as those recorded by ECG Methods: heart rates recorded by an oximeter and an electronic sphygmomanometer were compared with electrocardiogram (ECG) heart rates measured on acutely ill medical patients. Results: 1010 ECGs were performed on 217 patients while they were in the hospital. The bias between the oximeter and the ECG measured heart rate was -1.37 beats per minute (limits of agreement -22.6 to 19.9 beats per minute), and the bias between the sphygmomanometer and the ECG measured heart rate was -0.14 beats per minute (limits of agreement -22.2 to 21.9 beats per minute). Both devices failed to identify more than half the ECG recordings that awarded 3 NEWS points for heart rate. Conclusion: Heart rates of acutely ill patients are not reliably measured by pulse oximeter or electronic sphygmomanometers.

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4

Wongsoonthornchai, Manaporn, and Suphaphat Kwonpongsagoon. "Estimating Mercury Flows through Thermometers and Sphygmomanometers in Healthcare Facilities in Thailand on the Basis of a Material Flow Analysis." Advanced Materials Research 931-932 (May 2014): 629–34. http://dx.doi.org/10.4028/www.scientific.net/amr.931-932.629.

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This paper investigated mercury (Hg) flows and stock through mercury thermometers and sphygmomanometers in Thailand for 2010 using Material Flow Analysis (MFA) based on mass balance principles. All calculations in this study are based on data from hospital surveys and reliable secondary data sources. This study indicates that all thermometers and sphygmomanometers used in Thailand were only imported. Mercury contained in thermometers and sphygmomanometers was about 1,675 kg and 5,375 kg respectively. During the use phase, thermometers can release roughly 70% of Hg into the environment (air and water) while no emissions were emitted from sphygmomanometers. This study also shows that about 20-30% of mercury thermometer and sphygmomanometer waste were disposed of in landfills and incinerators. Hg can be released into air, land, and water at approximately 53%, 35%, and 12% respectively. According to our scenario analysis, it shows that phasing out Hg medical-based devices combined with preventing the breakage and spillage of Hg-thermometers can give higher potential reduction of Hg in Thailand.

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5

Zimmerman, Peta-Anne, Michael Browne, and Dale Rowland. "Instilling a culture of cleaning: Effectiveness of decontamination practices on non-disposable sphygmomanometer cuffs." Journal of Infection Prevention 19, no. 6 (June 27, 2018): 294–99. http://dx.doi.org/10.1177/1757177418780997.

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Background: Sphygmomanometers and their cuffs are non-critical items that can act as a fomite for transmission of pathogens which may cause healthcare-associated infection (HAI), leading to an argument that disposable equipment improves patient safety. Aim: The aim of this study was to demonstrate that decontamination decreased in microbial contamination of non-disposable sphygmomanometer cuffs, providing evidence to negate the need to purchase, and dispose of, single-patient-use cuffs, reducing cost and environmental impact. Methods: A pre–post intervention study of available sphygmomanometer cuffs and associated bedside patient monitors was conducted using a series of microbiological samples in a rural emergency department. A Wilcoxon signed-rank test analysed the effect of the decontamination intervention. To further examine the effect of the decontamination intervention, Mann–Whitney U-tests were conducted for each aspect. Findings: Contamination was significantly higher before decontamination than afterwards (Z = −5.14, U = 55.0, P < 0.001, η2 = 0.61 inner; Z = −5.05, U = 53.5, P < 0.001, η2 = 0.59 outer). Discussion: Decontamination of non-disposable sphygmomanometer cuffs decreases microbial load and risk of HAI, providing evidence to negate arguments for disposable cuffs while being environmentally sensitive and supportive of a culture of patient safety and infection control.

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6

Albuquerque, Nila, Thelma Araujo, Samantha Borges, Liana Queren Silva, Lais Vitoria da Silva, Talita Rabelo, Maria Kecia Lino, Fabian Elery da Rocha, and Luzia Sibele de Freitas. "PP313 Patient Preference For Blood Pressure Measurement: Sphygmomanometers Or Automatic Monitors?" International Journal of Technology Assessment in Health Care 36, S1 (December 2020): 27–28. http://dx.doi.org/10.1017/s0266462320001567.

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IntroductionThe development of more accurate algorithms has encouraged the replacement of sphygmomanometers with automatic blood pressure (BP) monitors in adults. From the perspective of health professionals, these technologies are advantageous for their practicality and are less susceptible to observer errors, and many devices validated by standardized protocols are available for both clinical and home use. However, adherence to these technologies also depends on patient acceptance. No studies to date have examined patient preference for BP measurement in the Brazilian population, although Brazil has undertaken initiatives to replace auscultatory measurement with oscillometric measurement. This study aims to analyze patient preferences between sphygmomanometers and automatic monitors for BP measurement.MethodsAn analytic study was conducted with 93 subjects in a Brazilian outpatient care facility. A random sampling method was used to select participants. After obtaining informed consent, all subjects had their BP measured using a sphygmomanometer and then an automatic monitor for clinical use, both in a quiet room after 10 minutes rest. A structured interview on discomfort and preferences was then conducted. An unpaired t-test and a chi-square test were used.ResultsThe mean age was 39.11 (±14.22) years. Minor discomfort was identified when an automatic monitor was used (2.34 versus 2.52). Confidence was higher with the sphygmomanometers (73.11%), and 60.21 percent preferred this technology. There was no association between gender and preferences (p = 0.88), but an association with age was identified. The average age of subjects who preferred sphygmomanometers was higher compared to those who preferred automatic monitors (p < 0.05).ConclusionsThis study revealed that, although BP measurement using automatic monitors is less uncomfortable, patients rely more on sphygmomanometers. Results show that preference is related to age, as younger people tend to prefer automatic monitors. The findings of this study indicate the need to widely disseminate information regarding the accuracy of automatic monitors among patients, especially older ones, in order to make them part of the decision-making process for replacing sphygmomanometers with automatic monitors.

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7

Mai, Shaojun, Hailan Zhu, Meijun Li, Yanfang Zeng, Yang Zhang, Yanchang Huo, Xiong-Fei Pan, and Yuli Huang. "Blood pressure measurement in the elderly with atrial fibrillation: an observational study comparing different noninvasive sphygmomanometers." Therapeutic Advances in Chronic Disease 13 (January 2022): 204062232211370. http://dx.doi.org/10.1177/20406223221137040.

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Background: Atrial fibrillation (AF) has affected millions of adults in the world. It is important to monitor and manage blood pressure (BP) in AF patients. The accuracy of BP monitoring in AF patients with noninvasive methods remains questionable, however. Objectives: To compare the accuracy of different noninvasive BP devices (oscillographic sphygmomanometer and pulse wave device) for BP measurement in elderly patients with AF, with a mercury sphygmomanometer as a reference. Design: This study was an observational study. Methods: Patients with AF from the inpatient department of cardiology were included from 1 January to 31 December 2020. BP measurements were performed by two trained nurses using a tee junction connection on the cuff to connect three sphygmomanometers. The Bland–Altman plot analysis was conducted to compare the agreement of BP measurements. We also compared the agreement of BP measurements through metrics such as accuracy, bias, and precision. Results: A total of 202 patients (54.5% female) were included. The Bland–Altman plot analysis showed that the lower and upper limits of agreement (LoAs) of pulse wave/reference were similar to the predefined acceptable clinical limits (10/5 mmHg). The bias and precision in both systolic and diastolic BP were significantly less in pulse wave/reference (a bias of 1.8 and 0.77 mmHg and a precision of 5.20 and 4.66 mmHg, respectively), with corresponding higher accuracy readings (98.51% for P10 in systolic BP and 85.64% for P5 in diastolic BP). Conclusion: A novel noninvasive sphygmomanometer – pulse wave device has a good concordance with a mercury sphygmomanometer in BP monitoring, and may be applicable to perform BP measurements in the elderly with AF.

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8

Davis, Gregory K., Lynne M. Roberts, George J. Mangos, and Mark A. Brown. "Comparisons of auscultatory hybrid and automated sphygmomanometers with mercury sphygmomanometry in hypertensive and normotensive pregnant women." Journal of Hypertension 33, no. 3 (March 2015): 499–506. http://dx.doi.org/10.1097/hjh.0000000000000420.

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9

Parati, G., and J. E. Ochoa. "Automated-auscultatory (Hybrid) sphygmomanometers for clinic blood pressure measurement: a suitable substitute to mercury sphygmomanometer as reference standard?" Journal of Human Hypertension 26, no. 4 (January 26, 2012): 211–13. http://dx.doi.org/10.1038/jhh.2011.119.

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10

Irianto, Bambang Guruh Irianto Guruh, Sumber Sumber, Elmira Rofida Al Haq, and Mansour Asghari. "Sphygmomanometer Sphygmomanometer with Led Bar Display to Improve the Blood Pressure Reading Accuracy." Jurnal Teknokes 15, no. 3 (September 21, 2022): 154–60. http://dx.doi.org/10.35882/teknokes.v15i3.321.

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Instruments in the hospital environment have a role to help and promote more accurate diagnosis and treatment. The general condition of the equipment used and their delivery are very important for a good prognostic. One of them is a device to measure blood pressure called a sphygmomanometer. There are 3 types of sphygmomanometer, namely digital, mercury, and aneroid. Currently, digital sphygmomanometers are known to be easy to use, but their accuracy is low and reduces the ability of nurses to identify blood pressure in humans. Mercury sphygmomanometer has high accuracy, but should not be used because it still uses mercury as a display. This is supported by the Ministry of Health's program to free the world of health from mercury because of the impact of mercury on health and the importance of nurses to train the skills of nurses. The purpose of this study was to reduce the use of mercury which is harmful to humans, in addition to training the nurse's ability to take blood pressure readings on patients. The method used by the researcher is to test the suitability value of the module with the calibrator and to collect data on six respondents to compare the module with the sphygmomanometer that has been traded. The result of the research is the error value when testing the module's suitability value with the DPM (Digital Pressure Monitor) calibrator with a range from 0 to 0.67%. each set point has a different error value. and the lowest error value is among the six set points, namely 0% and the highest error value is 0.67%. Meanwhile, the lowest error value in systole is 0.2% and the highest error value is 2.16%. While the lowest error value in diastole is 0% and the highest error value is 5.55%. Based on the results of the research that has been carried out, the authors conclude that this module is made to replace mercury which is prohibited from being used because it is dangerous for humans and trains nurses' abilities in determining blood pressure readings.

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11

Kravetz, Robert E. "Sphygmomanometer." American Journal of Gastroenterology 96, no. 11 (November 2001): 3185. http://dx.doi.org/10.1111/j.1572-0241.2001.05279.x.

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12

Kravetz, R. "Sphygmomanometer." American Journal of Gastroenterology 96, no. 11 (November 2001): 3185. http://dx.doi.org/10.1016/s0002-9270(01)03841-2.

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13

Erdyansyah, Septian Nur Wahyu, Torib Hamzah, and Dyah Titisari. "A Digital Pressure Meter Equipped with Pressure Leak Detection." Jurnal Teknokes 14, no. 2 (October 10, 2021): 55–61. http://dx.doi.org/10.35882/teknokes.v14i2.2.

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A manual sphygmomanometer is an instrument used to measure blood pressure, and consists of an inflatable cuff, a mercury manometer (or aneroid gauge) and an inflation ball and gauge. To assess the condition, accuracy and safety of mercury and anaeroid sphygmomanometers in use in general practice and to pilot a scheme for sphyg- momanometer maintenance within the district. Therefore, it must be calibrated periodically. Using the MPX 5050GP sensor as a positive pressure sensor. Requires a maximum pressure of 300 mmHg. This tool is also equipped with a SD Card as external storage. The display used in this module is TFT Nextion 2.8”. After conductings measurements of the three comparisons consisting of Multifunction, DPM and mercury tensimeter to 6 times, the smallest result 0 mmHg and the largest results 251.52 mmHg. While the error in mercury tensimeter’s of leak test to module and rigel is 0.56% and 0.404%.

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14

Amoore, John Nicholas. "Oscillometric sphygmomanometers." Blood Pressure Monitoring 17, no. 2 (April 2012): 80–88. http://dx.doi.org/10.1097/mbp.0b013e32835026b0.

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15

BAILEY, R. H., V. L. KNAUS, and J. H. BAUER. "Aneroid Sphygmomanometers." Survey of Anesthesiology 36, no. 2 (April 1992): 117. http://dx.doi.org/10.1097/00132586-199204000-00066.

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16

Bailey, Richard H. "Aneroid Sphygmomanometers." Archives of Internal Medicine 151, no. 7 (July 1, 1991): 1409. http://dx.doi.org/10.1001/archinte.1991.00400070157022.

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17

Russell, Stephen M., Joshua Marcus, and David Levine. "PATHOGENESIS OF RAPIDLY REVERSIBLE COMPRESSIVE NEUROPATHY." Neurosurgery 65, suppl_4 (October 1, 2009): A174—A180. http://dx.doi.org/10.1227/01.neu.0000335641.17914.4c.

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Abstract OBJECTIVE Using the sequential inflation of 2 sphygmomanometers, Lewis et al. (Heart 16:1–32, 1931) concluded that compressive neuropathy was secondary to ischemia of the compressed nerve segment. Despite subsequent animal studies demonstrating that compressive lesions are more likely the result of mechanical nerve deformation, disagreement remains as to the etiology of rapidly reversible compressive neuropathy. Our hypothesis is that, during the classic sphygmomanometer experiments, the areas of nerve compression at the cuff margins overlapped, so that a region of transient nerve deformation persisted during the second cuff inflation. If true, the original results by Lewis et al. would be consistent with a mechanical pathogenesis. METHODS In our study, 6 patients underwent sequential upper extremity dual-sphygmomanometer inflation with serial assessment by grip-dynamometer and 2-point discrimination. The order of cuff inflation, as well as the distance between cuffs, was varied. Mean grip force and 2-point discrimination values were statistically compared between conditions. RESULTS Patients with overlapping cuffs maintained their neurological deficits, whereas those with separated cuffs experienced an improvement in both grip force (P = 0.02) and 2-point discrimination (P < 0.001) when cuff inflation was switched. CONCLUSION Rapidly reversible compressive neuropathy seems to be secondary to mechanical nerve deformation at the margins of the compressive force rather than the result of ischemia of the compressed nerve segment. Overlap of the mechanically deformed nerve segments likely explains why neurological deficits persisted despite sequential cuff inflation in the classic experiments by Lewis et al.

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18

Zargaran, David, Sarah Hardwick, Reeja Adel, George Hill, Daniel Stubbins, and Abdul Majeed Salmasi. "Sphygmomanometer Cuffs." Angiology 66, no. 2 (February 24, 2014): 118–21. http://dx.doi.org/10.1177/0003319714522855.

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19

Reischl, Uwe, and Conrad Colby. "Simplifying Blood Pressure Measurements in Clinical Settings." International Journal Of Community Medicine And Public Health 10, no. 1 (December 29, 2022): 52. http://dx.doi.org/10.18203/2394-6040.ijcmph20223525.

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Background: Upper arm sphygmomanometry is the most commonly used method to measure blood pressure in adults. However, variations in upper arm circumference and use of different cuff-sizes results in different pressure readings. When using the same cuff size, pressure readings will be higher for larger arm circumferences and lower for smaller arm circumferences. The objective of this study was to identify an adjustment factor that will allow pressure readings obtained for any combination of arm circumference and cuff size to be compared.Methods: To investigate the relationship between arm circumferences, cuff size and pressure readings, experiments were conducted using laboratory simulations and blood pressure measurements on nineteen human subjects. Power analysis identified minimum sample size. Results were analyzed using Chi-square and t-tests. The study was conducted between 2019 and 2021 in Boise, Idaho, USA. The University institutional review board approved the use of human subjects.Results: Simulations revealed a 99% linear correlation between changes in arm circumference coverage and changes in pressure readings. Human subject tests showed a 1% change in upper arm coverage by the sphygmomanometer cuff corresponded to a 1mmHg change in both systolic and diastolic pressure readings. Conclusions: The proposed adjustment factor can simplify blood pressure measurements in clinical settings by allowing healthcare providers to use only one sphygmomanometer size. It will also provide the basis for a “reference” against which blood pressure values obtained for any combination of cuff size and arm circumference can be standardized.

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Yamakoshi, Takehiro, Peter Rolfe, and Ken-ichi Yamakoshi. "Cuffless blood pressure estimation based on haemodynamic principles: progress towards mobile healthcare." PeerJ 9 (May 25, 2021): e11479. http://dx.doi.org/10.7717/peerj.11479.

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Background Although cuff-sphygmomanometry is used worldwide in medical and healthcare fields, it is a fact that the use of an occlusive cuff to obtain blood pressure (BP) is troublesome and inconvenient. There have therefore been on-going efforts to devise methods that do not require the use of a cuff, almost all being based on the measurement of pulse wave velocity or pulse transit time, but so far few significant developments have been made, especially regarding measurement accuracy. We have previously reported a smartphone-based cuffless method using a linear multiple regression calibration model comprising of BP obtained with a cuff-sphygmomanometer as an objective variable and modified normalized pulse volume (mNPV: a measure of vasoconstrictive activity in a finger) and pulse rate (PR) as explanatory variables. This requires a number of subjects to construct a calibration model and thus is largely dependent on the accuracy due to the model. To address these drawbacks, we report here a new cuffless method to surpass considerably the results of our previous study as well as earlier works. Methods With this method we can estimate BP, with much higher accuracy, using mNPV and PR, both also obtained from a smartphone-derived photoplethysmogram. The subject firstly performs a cuff-based BP measurement in parallel with the acquisition of mNPV and PR from a smartphone. These parameters are set as initial values (BPc0, mNPV0 and PR0; initial calibration procedure). Then, the estimated BP (BPe) can be calculated from the relation: “BPe = (BPc0·PR·mNPV)/(PR0·mNPV0)”, which is derived from the so-called haemodynamic Ohm’s law. To validate this method, preliminary experiments using 13 volunteers were carried out to compare results from the new method with those from the cuff-sphygmomanometry, used as a reference. Results Altogether 299 paired data sets were analyzed: A good agreement was found between the cuff-based and the estimated BP values, with correlation coefficients of 0.968 for systolic BP (SBP), 0.934 for mean BP (MBP) and 0.844 for diastolic BP (DBP). Bland-Altman analyses for the BPe (SBPe, MBPe, DBPe) and the BPc (SBPc, MBPc, DBPc) values also supported these comparison results. Mean absolute differences between the BPe and the BPc values in total subjects were less than 5 mmHg. Fairly good tracking availability in terms of time series data of the BPc against the corresponding BPe values was also confirmed in each subject during the study periods (1–2 weeks for 12 subjects and about 4 months for one subject). Discussion The present study reported the successful development of the new cuffless BP estimation method, given as the status of a trial stage of investigation. This method could easily be used with various smartphones, smart watches, and finger-based devices, and it appears to have significant potential as a convenient substitute for conventional cuff-sphygmomanometers as well as for practical application to mobile healthcare.

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Brownlee, Rachel D., Philip H. Kass, and Rebecca L. Sammak. "Blood Pressure Reference Intervals for Ketamine-sedated Rhesus Macaques (Macaca mulatta)." Journal of the American Association for Laboratory Animal Science 59, no. 1 (January 1, 2020): 24–29. http://dx.doi.org/10.30802/aalas-jaalas-19-000072.

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Appropriate calculation and use of reference intervals have widespread clinical and research implications. Unfortunately, reference intervals for blood pressure in one of the most commonly used NHP species, rhesus macaques (Macaca mulatta), have never been calculated. Although anesthetic drugs and noninvasive methods of blood pressure measurement both have known effects on blood pressure values, their use provides the safest, fastest, and most widely used approach to clinical evaluation and blood pressure collection in this species. We analyzed noninvasive blood pressure measurements from 103 healthy, ketamine-sedated, adult (age, 8 to 16 y) rhesus macaques, representing both sexes, with various body condition scores by using 2 types of sphygmomanometers at 3 different anatomic locations. Reference intervals were calculated for each device, in each location, thus establishing normative data beneficial to clinical veterinarians assessing animal health and encouraging researchers to use noninvasive methods. Age, body condition score, sex, type of sphygmomanometer, and location of cuff placement were all found to influence blood pressure measurements significantly, providing important information necessary for the appropriate interpretation of noninvasive blood pressure values in rhesus macaques.

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NOBEL, JOEL J. "Electronic, automatic sphygmomanometers." Pediatric Emergency Care 12, no. 6 (December 1996): 442–44. http://dx.doi.org/10.1097/00006565-199612000-00014.

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23

Faries, Peter L., Luis A. Sanchez, Michael L. Marin, Richard E. Parsons, Ross T. Lyon, Steve Oliveri, and Frank J. Veith. "An Experimental Model for the Acute and Chronic Evaluation of Intra-Aneurysmal Pressure." Journal of Endovascular Therapy 4, no. 3 (August 1997): 290–97. http://dx.doi.org/10.1177/152660289700400310.

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Purpose: To develop an animal model for the acute and chronic monitoring of pressure within abdominal aortic aneurysms (AAAs) to be treated with endovascular grafts. Methods: A strain-gauge pressure transducer was placed within an AAA created from a prosthetic vascular graft. Prosthetic aneurysms were implanted into 17 canine infrarenal aortas. The intra-aneurysmal pressure was monitored and correlated with noninvasive forelimb sphygmomanometry for 2 weeks. After this time, an intravascular manometer catheter was passed into the aneurysm. Simultaneous pressure measurements were obtained using the implanted strain-gauge pressure transducer, the manometer catheter, and the forelimb sphygmomanometer. Angiography was performed to assess intraluminal morphology, aneurysm anastomoses, and adjoining aortic vessels. In addition, two control animals underwent intra-aneurysmal pressure monitoring after standard surgical aneurysm repair. Results: There was excellent correlation (r = 0.97) between the pressure measurements obtained with the implanted strain-gauge pressure transducer and the intravascular manometer. Close correlation was also observed between the implanted strain-gauge transducer and the forelimb sphygmomanometer (r = 0.88) during postprocedural monitoring. Intra-aneurysmal pressure was lowered dramatically by surgical exclusion (aneurysm: 15/5 ± 7/4 mmHg; systemic: 124/66 ± 34/17 mmHg; p < 0.001). The prosthetic aneurysms were successfully imaged with angiography. Conclusions: This animal model provides an accurate and reproducible means for measuring intra-aneurysmal pressure on an acute and chronic basis. It may be possible to use this model in the assessment of endovascular devices to determine their efficacy in reducing intra-aneurysmal pressure. Evaluation of complications associated with their use, such as patent aneurysm side branches, perigraft channels, and perianastomotic reflux, may also be possible.

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24

Leumann, E. "SPHYGMOMANOMETER BLADDER LENGTH." Lancet 329, no. 8539 (April 1987): 975. http://dx.doi.org/10.1016/s0140-6736(87)90316-3.

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25

K, Dinesh. "Sphygmomanometer Blood Pressure Relevant and Falooda Ice Cream Loving." Diabetes & Obesity International Journal 4, no. 3 (2019): 1–3. http://dx.doi.org/10.23880/doij-16000205.

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Blood pressure influences the capillaries and arteries. The normal range of blood pressure is 120/80mmHg. If range of blood pressure increased upto 140/80mmHg it is called hypertension and this value decreased 90/60mmHg this condition called hypotension. There are many reasons of high blood pressure such as eating too much salt, smoking and drinking alcohol. Falooda ice cream has many health benefits because it contains vitamins and minerals. Males that have blood pressure 128/74 mmHg love falooda ice cream and females with average blood 119/72mmHg love falooda ice cream.

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Hassan, Khaled M., Hadil E. Rahali, Hisham M. Balamash, Reem K. Alanazi, Naief S. Almatroudi, Munirah N. Alsairra, Anfal H. Alhobera, et al. "Different measures of blood pressure in primary health care in Saudi Arabia." International Journal Of Community Medicine And Public Health 7, no. 11 (October 26, 2020): 4307. http://dx.doi.org/10.18203/2394-6040.ijcmph20204406.

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Background: Objective of the study was to be able to know various measurement or devices for blood pressure (BP) used in primary care (PC).Methods: Cross-sectional multicenter study, sample is consecutive cases, study done in kingdom of Saudi Arabia in health institution of Primary care that treat patients who already diagnosed with hypertension aged more than 18 years old, the method used in the study is observation of devices which measure blood pressure through two following BP measurements.Results: Blood pressure was measured for 14,137 from 3,592 PC physicians, blood pressured measured by a mercury sphygmomanometer, in 69.8% of the patients, while it is measured by electronic device in 16.5% but measured by aneroid manometer in 11.8% while 1.9% measured by more of a measurement method. Electronic devices and aneroid manometers were the most used measurement of blood pressure in rural areas. Also, there were differences in the BP values between different methods of the measurement. Conclusions: The best methods of blood pressure measurement between medical staff is mercury sphygmomanometers and aneroid devices in primary care and to avoid biases in the measurement we encourage to use electronic devices to measure BP.

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Pertiwi, Yeni, Nur Hadziqoh, Romi Mulyadi, Nabila Noria Putri, and Rizki Eka Putra. "Quality Analysis of Pressure Measurement Automatic Sphygmomanometer and Non-automatic Sphygmomanometer." Eksakta: Berkala Ilmiah Bidang MIPA 23, no. 03 (September 12, 2022): 188–97. http://dx.doi.org/10.24036/eksakta/vol23-iss03/328.

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Hypertension is the fifth leading cause of death in Indonesia. Hypertension occurs because the blood vessels are continuously experiencing high pressure. Medical device that supports doctors and other health workers in diagnosing hypertension is sphygmomanometer. Sphygmomanometer is an instrument for measuring blood pressure. Accuracy of blood pressure measurement is very important in diagnosing hypertension. An Error in measuring blood pressure will be fatal for patients, health workers, and health facilities. So that this study aims to analyze the quality of automatic and non-automatic sphygmomanometer. This research method is in form of quantitative research based on experiments. The data was taken by using direct measurements. Measurements were carried out by using the 2018 Ministry of Health work method. Quality assessment of the sphygmomanometer was taken based on the results of sphygmomanometer calibration analysis. Automatic sphygmomanometer with the OMRON brand got score 95 and the non-automatic sphygmomanometer with the ABN brand got score 97.3. The results of the analysis showed that both tools had high accuracy of pressure measurement and were within tolerance limits. So it can be concluded that both tools are feasible to use.

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Umegbolu, Emmanuel I. "The roles of stethoscopes and sphygmomanometers in hospital-acquired infections: a case study of some district hospitals in Enugu state, Southeast Nigeria." International Journal of Research in Medical Sciences 7, no. 5 (April 26, 2019): 1686. http://dx.doi.org/10.18203/2320-6012.ijrms20191659.

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Background: Hospital acquired infections (HAIs) are infections that patients acquire while receiving treatments for other conditions. Studies have shown that stethoscopes and sphygmomanometers can act as potential sources of these infections in patients accessing treatment in healthcare facilities. This study aimed to increase awareness among health workers in Nigeria of the potentials of stethoscopes and sphygmomanometers to transmit HAIs.Methods: Moist swab sticks were used to collect samples from 38 randomly selected stethoscopes and sphygmomanometers from some departments of four district hospitals. Collected samples were cultured using standard microbiological techniques. In addition, self-designed questionnaire was used to assess the knowledge and practice of doctors and nurses on the roles of stethoscopes and sphygmomanometers in HAIs.Results: About 83.8% of the health workers demonstrated some awareness of the roles of stethoscopes and sphygmomanometers in HAIs. 42.5% cleaned their stethoscopes, while 5% their sphygmomanometers. Staphylococcus aureus, (65.9% of stethoscopes), proteus mirabilis, Pseudomonas aeruginosa (67.6% of sphygmomanometers), Streptococcus and Coliform species were isolated. There was no significant difference between the contamination of stethoscopes and sphygmomanometers by the isolates, except for Pseudomonas aeruginosa (t=3.49, p=0.04).Conclusions: Awareness did not match practice in cleaning the stethoscopes and sphygmomanometers in the four facilities. Staphylococcus aureus and Pseudomonas aeruginosa were the two most common organisms isolated with a significant difference (t=3.49, p=0.04) between stethoscopes and sphygmomanometers in isolation of Pseudomonas aeruginosa. To curb HAIs, health workers need to improve on their practice of cleaning stethoscopes and sphygmomanometers.

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Lazazzera, Remo, Yassir Belhaj, and Guy Carrault. "A New Wearable Device for Blood Pressure Estimation Using Photoplethysmogram." Sensors 19, no. 11 (June 4, 2019): 2557. http://dx.doi.org/10.3390/s19112557.

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We present a novel smartwatch, CareUp ® , for estimating the Blood Pressure (BP) in real time. It consists of two pulse oximeters: one placed on the back and one on the front of the device. Placing the index finger on the front oximeter starts the acquisition of two photoplethysmograms (PPG); the signals are then filtered and cross-correlated to obtain a Time Delay between them, called Pulse Transit Time (PTT). The Heart Rate (HR) (estimated from the finger PPG) and the PTT are then input in a linear model to give an estimation of the Systolic and Diastolic BP. The performance of the smartwatch in measuring BP have been validated in the Institut Coeur Paris Centre Turin (ICPC), using a sphygmomanometer, on 44 subjects. During the validation, the measures of the CareUp ® were compared to those of two oscillometry-based devices already available on the market: Thuasne ® and Magnien ® . The results showed an accuracy comparable to the oscillometry-based devices and they almost agreed with the American Association for the Advancement of Medical Instrumentation standard for non-automated sphygmomanometers. The integration of the BP estimation algorithm in the smartwatch makes the CareUp ® an easy-to-use, wearable device for monitoring the BP in real time.

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30

Al-Naji, Ali, Ahmed Bashar Fakhri, Mustafa F. Mahmood, and Javaan Chahl. "Contactless Blood Pressure Estimation System Using a Computer Vision System." Inventions 7, no. 3 (September 18, 2022): 84. http://dx.doi.org/10.3390/inventions7030084.

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Blood pressure (BP) is one of the most common vital signs related to cardiovascular diseases. BP is traditionally measured by mercury, aneroid, or digital sphygmomanometers; however, these approaches are restrictive, inconvenient, and need a pressure cuff to be attached directly to the patient. Therefore, it is clinically important to develop an innovative system that can accurately measure BP without the need for any direct physical contact with the people. This work aims to create a new computer vision system that remotely measures BP using a digital camera without a pressure cuff. The proposed BP system extracts the optical properties of photoplethysmographic signals in two regions in the forehead captured by a digital camera and calculates BP based on specific formulas. The experiments were performed on 25 human participants with different skin tones and repeated at different times under ambient light conditions. Compared to the systolic/diastolic BP readings obtained from a commercial digital sphygmomanometer, the proposed BP system achieves an accuracy of 94.6% with a root mean square error (RMSE) of 9.2 mmHg for systolic BP readings and an accuracy of 95.4% with an RMSE of 7.6 mmHg for diastolic BP readings. Thus, the proposed BP system has the potential of being a promising tool in the upcoming generation of BP monitoring systems.

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31

Hunyor, Stephen N. "Australian standards for sphygmomanometers." Medical Journal of Australia 145, no. 9 (November 1986): 431–32. http://dx.doi.org/10.5694/j.1326-5377.1986.tb113865.x.

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32

Akpolat, Tekin, Türkan Aydogdu, Emre Erdem, and Ahmet Karataş. "Inaccuracy of home sphygmomanometers." Blood Pressure Monitoring 16, no. 4 (August 2011): 168–71. http://dx.doi.org/10.1097/mbp.0b013e328348ca52.

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33

Mann, Stewart. "INACCURACY OF ELECTRONIC SPHYGMOMANOMETERS." Clinical and Experimental Pharmacology and Physiology 19, no. 5 (May 1992): 304–6. http://dx.doi.org/10.1111/j.1440-1681.1992.tb00458.x.

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34

Mion, D., and AMG Pierin. "How accurate are sphygmomanometers?" Journal of Human Hypertension 12, no. 4 (April 1998): 245–48. http://dx.doi.org/10.1038/sj.jhh.1000589.

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35

Jones, Jeffrey S., William Ramsey, and Thomas Hetrick. "Accuracy of prehospital sphygmomanometers." Journal of Emergency Medicine 5, no. 1 (January 1987): 23–27. http://dx.doi.org/10.1016/0736-4679(87)90006-0.

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36

Cristina Silva, Priscila, Rodolfo Souza de Faria, Adriano Gon鏰lves Sallum, Luiz Vinicius de Alcantara Sousa, Vitor E Valenti, and Paulo Jos�Oliveira Cortez. "Analysis of Mercury Sphygmomanometers in A Hospital School-Analysis of Mercury Sphygmomanometers." Journal of Cardiology and Therapy 5, no. 1 (2018): 697–700. http://dx.doi.org/10.17554/j.issn.2309-6861.2018.05.138.

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37

LI, S. S., X. S. ZHAO, S. BA, F. HE, L. KE, L. J. YAN, and Y. F. WU. "Validation of electronic sphygmomanometers against mercury sphygmomanometers at high altitude in Tibet." International Journal of Cardiology 137 (October 2009): S19. http://dx.doi.org/10.1016/j.ijcard.2009.09.061.

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38

Ahmad, Quamruddin. "Sphygmomanometer helps determine pulses." Postgraduate Medicine 111, no. 2 (February 2002): 79. http://dx.doi.org/10.3810/pgm.2002.02.1120.

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39

O'Brien, E. "Replacing the mercury sphygmomanometer." BMJ 320, no. 7238 (March 25, 2000): 815–16. http://dx.doi.org/10.1136/bmj.320.7238.815.

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40

Lee, Kyung Jin, Jung Hae Choi, Je Lee, Zin Ho Shin, Ja Hun Jung, Jang Won Sohn, Jae Ung Lee, et al. "Evaluation of Correlation between Automatic Ocillometric Sphygmomanometer and Standard Korotkoff Auscultatory Sphygmomanometer." Korean Circulation Journal 27, no. 5 (1997): 501. http://dx.doi.org/10.4070/kcj.1997.27.5.501.

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41

Mansoor, Kanaan, Saba Shahnawaz, Mariam Rasool, Huwad Chaudhry, Gul Ahuja, and Sara Shahnawaz. "Automated Versus Manual Blood Pressure Measurement: A Randomized Crossover Trial in the Emergency Department of a Tertiary Care Hospital in Karachi, Pakistan: Are Third World Countries Ready for the Change?" Open Access Macedonian Journal of Medical Sciences 4, no. 3 (July 27, 2016): 404–9. http://dx.doi.org/10.3889/oamjms.2016.076.

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BACKGROUND: Hypertension has proven to be a strong liability with 13.5% of all mortality worldwide being attributed to elevated blood pressures in 2001. An accurate blood pressure measurement lies at the crux of an appropriate diagnosis. Despite the mercury sphygmomanometer being the gold standard, the ongoing deliberation as to whether mercury sphygmomanometers should be replaced with the automated oscillometric devices stems from the risk mercury poses to the environment.AIM: This study was performed to check the validity of automated oscillometric blood pressure measurements as compared to the manual blood pressure measurements in Karachi, Pakistan.MATERIAL AND METHODS: Blood pressure was recorded in 200 individuals aged 15 and above using both, an automated oscillometric blood pressure device (Dinamap Procare 100) and a manual mercury sphygmomanometer concomitantly. Two nurses were assigned to each patient and the device, arm for taking the reading and nurses were randomly determined. SPSS version 20 was used for analysis. Mean and standard deviation of the systolic and diastolic measurements from each modality were compared to each other and P values of 0.05 or less were considered to be significant. Validation criteria of British Hypertension Society (BHS) and the US Association for the Advancement of Medical Instrumentation (AAMI) were used. RESULTS: Two hundred patients were included. The mean of the difference of systolic was 8.54 Â± 9.38 while the mean of the difference of diastolic was 4.21 Â± 7.88. Patients were further divided into three groups of different systolic blood pressure <= 120, > 120 to = 150 and > 150, their means were 6.27 Â± 8.39 (p-value 0.175), 8.91 Â± 8.96 (p-value 0.004) and 10.98 Â± 10.49 (p-value 0.001) respectively. In our study 89 patients were previously diagnosed with hypertension; their difference of mean systolic was 9.43 Â± 9.89 (p-value 0.000) and difference of mean diastolic was 4.26 Â± 7.35 (p-value 0.000).CONCLUSIONS: Systolic readings from a previously validated device are not reliable when used in the ER and they show a higher degree of incongruency and inaccuracy when they are used outside validation settings. Also, readings from the right arm tend to be more precise.

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42

Akpolat, Tekin, Melda Dilek, Turkan Aydogdu, Zelal Adibelli, Dilek Gurgenyatagi Erdem, and Emre Erdem. "Home sphygmomanometers: validation versus accuracy." Blood Pressure Monitoring 14, no. 1 (February 2009): 26–31. http://dx.doi.org/10.1097/mbp.0b013e3283262f31.

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43

Murray, A. "In praise of mercury sphygmomanometers." BMJ 322, no. 7296 (May 19, 2001): 1248. http://dx.doi.org/10.1136/bmj.322.7296.1248.

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44

CADY, C. "Ambulance sphygmomanometers are frequently inaccurate." American Journal of Hypertension 9, no. 4 (April 1996): 107A. http://dx.doi.org/10.1016/0895-7061(96)81816-4.

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45

Cady, Charles E., Ronald G. Pirrallo, and Clarence E. Grim. "Ambulance sphygmomanometers are frequently inaccurate." Prehospital Emergency Care 1, no. 3 (January 1997): 136–39. http://dx.doi.org/10.1080/10903129708958806.

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46

Waugh, Jason J. S., Manesh Gupta, Julie Rushbrook, Aidan Halligan, and Andrew H. Shennan. "Hidden errors of aneroid sphygmomanometers." Blood Pressure Monitoring 7, no. 6 (December 2002): 309–12. http://dx.doi.org/10.1097/00126097-200212000-00003.

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47

Gruskin, A. B. "Blood Pressure: Dinamap Versus Sphygmomanometer." AAP Grand Rounds 5, no. 5 (May 1, 2001): 47–48. http://dx.doi.org/10.1542/gr.5-5-47.

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48

&NA;. "Hawksley sphygmomanometer still has value." Inpharma Weekly &NA;, no. 896 (July 1993): 7. http://dx.doi.org/10.2165/00128413-199308960-00009.

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49

Neligan, Gerald A., and Marcia C. Smith. "Sphygmomanometer Cuff for the Newborn." Developmental Medicine & Child Neurology 5, no. 6 (November 12, 2008): 609–14. http://dx.doi.org/10.1111/j.1469-8749.1963.tb10727.x.

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50

Geller, Jay. "FDA Offers New Sphygmomanometer Guidance." Journal of Clinical Engineering 30, no. 2 (April 2005): 61–63. http://dx.doi.org/10.1097/00004669-200504000-00004.

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