Relevant bibliographies by topics / Sagittal synostosis

Academic literature on the topic 'Sagittal synostosis'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Sagittal synostosis"

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Terner, Jordan S., Roberto Travieso, Su-shin Lee, Antonio J. Forte, Anup Patel, and John A. Persing. "Combined metopic and sagittal craniosynostosis: is it worse than sagittal synostosis alone?" Neurosurgical Focus 31, no. 2 (August 2011): E2. http://dx.doi.org/10.3171/2011.6.focus11100.

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Object Combined metopic and sagittal craniosynostosis is a common variant of the nonsyndromic, multiplesuture synostoses. It is unknown whether this combined form causes reduced intracranial volume (ICV) and potentially more brain dysfunction than sagittal synostosis alone. This study is a volumetric comparison of these 2 forms of craniosynostosis. Methods The authors conducted a retrospective chart and CT review of 36 cases of isolated sagittal synostosis or combined metopic and sagittal synostosis, involving patients seen between 1998 and 2006. Values were obtained for the intracranial compartment, brain tissue, CSF space, and ventricular volumes. Patients with craniosynostosis were then compared on these measures to 39 age- and sex-matched controls. Results In patients with isolated sagittal synostosis and in those with combined metopic and sagittal synostosis, there was a trend toward smaller ICV than in controls (p < 0.1). In female patients older than 4.5 months of age, there was also a trend toward smaller ICV in patients with the combined form than in those with sagittal synostosis alone (p < 0.1), and the ICV of patients with the combined form was significantly smaller than the volume in controls in the same age group (p < 0.05). Brain tissue volume was significantly smaller in both patient groups than in controls (p < 0.05). Ventricular volume was significantly increased (compared with controls) only in the patients with isolated sagittal synostosis who were younger than 4.5 months of age (p < 0.05). Overall CSF space, however, was significantly larger in both patient groups in patients younger than 4.5 months of age (p < 0.05). Conclusions These findings raise concerns about intracranial and brain volume reduction in patients with sagittal and combined metopic and sagittal synostoses and the possibility that this volume reduction may be associated with brain dysfunction. Because the ICV reduction is greater in combined metopic and sagittal synostosis in patients older than 4.5 months of age than in sagittal synostosis in this age group, the potential for brain dysfunction may be particularly true for these younger infants.
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Jane, John A., Kant Y. Lin, and John A. Jane. "Sagittal synostosis." Neurosurgical Focus 9, no. 3 (September 2000): 1–6. http://dx.doi.org/10.3171/foc.2000.9.3.4.

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Sagittal synostosis causes predictable malformations depending on the specific suture location that fuses. Anterior fusion causes frontal bossing, whereas posterior fusion causes an occipital knob. Complete sagittal synostosis results in deformity both anteriorly and posteriorly. Variants of each type exist and therefore surgical correction must be tailored to the individual patient. Examples of the different forms of sagittal synotsosis are discussed, and the various surgical techniques available are detailed.
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Haug, R. H. "Sagittal synostosis." Journal of Oral and Maxillofacial Surgery 53, no. 4 (April 1995): 489. http://dx.doi.org/10.1016/0278-2391(95)90740-8.

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Ocampo, Renato V., and John A. Persing. "Sagittal Synostosis." Clinics in Plastic Surgery 21, no. 4 (October 1994): 563–74. http://dx.doi.org/10.1016/s0094-1298(20)30724-0.

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Posnick, Jeffrey C., Kant Y. Lin, Philip Chen, and Derek Armstrong. "Sagittal Synostosis." Plastic and Reconstructive Surgery 92, no. 6 (November 1993): 1015–24. http://dx.doi.org/10.1097/00006534-199311000-00003.

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Posnick, Jeffrey C., Kant Y. Lin, Philip Chen, Derek Armstrong, and Charles H. Thorne. "Sagittal Synostosis." Plastic and Reconstructive Surgery 92, no. 6 (November 1993): 1025–26. http://dx.doi.org/10.1097/00006534-199311000-00004.

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Masand, M. "Sagittal synostosis." Case Reports 2010, oct01 1 (October 4, 2010): bcr0520103026. http://dx.doi.org/10.1136/bcr.05.2010.3026.

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Huang, Martin H. S., Wendy E. Mouradian, Steven R. Cohen, and Joseph S. Gruss. "The Differential Diagnosis of Abnormal Head Shapes: Separating Craniosynostosis from Positional Deformities and Normal Variants." Cleft Palate-Craniofacial Journal 35, no. 3 (May 1998): 204–11. http://dx.doi.org/10.1597/1545-1569_1998_035_0204_tddoah_2.3.co_2.

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The correct differential diagnosis of an abnormal head shape in an infant or a child is vital to the management of this common condition. Establishing the presence of craniosynostosis, which warrants surgical correction, versus non-synostotic causes of head deformity, which do not, is not always straightforward. This paper deals with three groups of abnormal head shape that may cause diagnostic confusion: the spectrum of metopic synostosis; the dolicho-cephaly of prematurity versus sagittal synostosis; and the differential diagnosis of plagiocephaly. Special emphasis has been placed on the problem of posterior plagiocephaly, in the light of recent evidence demonstrating that lambdoid synostosis has been overdiagnosed. Metopic synostosis presents as a wide spectrum of severity. Although only severe forms of the disorder are corrected surgically, all cases should be monitored for evidence of developmental problems. The dolichocephalic head shape of preterm infants is non-synostotic in origin and is managed nonsurgically. The scaphocephalic head shape resulting from sagittal synostosis requires surgical intervention for correction. Posterior plagiocephaly may be due to unilambdoid synostosis or positional molding, which have very different clinical and imaging features. True lambdoid synostosis is rare. Most cases of posterior plagiocephaly are due to positional molding, which can usually be managed nonsurgically. Regardless of the suture(s) involved, all children with confirmed craniosynostosis should be monitored for increased intracranial pressure and developmental problems.
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Piatt, Joseph H. "Sagittal synostosis and ossified scalp hematoma: cause or consequence?" Journal of Neurosurgery: Pediatrics 6, no. 1 (July 2010): 29–32. http://dx.doi.org/10.3171/2010.3.peds09487.

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In this paper, the author presents 2 cases of sagittal synostosis with scaphocephaly that featured ossified scalp hematomas straddling the sagittal suture in the midparietal region. These ossified lesions were originally cephalohematomas. Collection of blood under the pericranium across the midline was possible in these cases because sagittal synostosis had obliterated the sagittal suture and its dense attachment to overlying periosteum. Scaphocephaly very likely exacerbated the difficulty of the deliveries and contributed to the causation of the scalp hemorrhages. The alternative hypothesis, that ossification of a scalp hematoma immobilized the suture and caused synostosis, is not tenable for reasons that are reviewed. Sagittal synostosis in these 2 instances was not a complication of birth trauma.
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Mooney, Mark P., H. Wolfgang Losken, Michael I. Siegel, Janice F. Lalikos, Albert Losken, Annie M. ,. Burrows, and Tim D. Smith. "Development of a Strain of Rabbits with Congenital Simple Nonsyndromic Coronal Suture Synostosis Part II: Somatic and Craniofacial Growth Patterns." Cleft Palate-Craniofacial Journal 31, no. 1 (January 1994): 8–16. http://dx.doi.org/10.1597/1545-1569_1994_031_0008_doasor_2.3.co_2.

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In the March 1993 issue of The Cleft Palate-Craniofacial Journal we reported a female rabbit born in our laboratory with complete bilateral coronal suture (CS) synostosis. This follow-up study presents our attempts to breed the animal and establish a strain of craniosynostotic rabbits. The second part of this study presents longitudinal somatic and craniofacial growth data in offspring with coronal suture synostosis. Serial growth data from 72 animals were collected for the present study. The sample consisted of 11 animals (10 offspring and the original female) with complete nonsyndromic unilateral (plagiocephalic) or bilateral (brachycephalic) CS synostosis, 19 animals with partial CS synostosis, and 42 unaffected control litter mates. At 10 days of age, all animals had radiopaque amalgam markers placed on either side of the frontonasal, coronal, anterior lambdoidal, and sagittal sutures. Body weights and serial lateral and dorsoventral head radiographs were taken at 1.5 (10 days), 6, 12, and 18 weeks of age. All animals showed similar body weights at 1.5 weeks of age, while completely synostosed animals exhibited a slight (about 12%), but significantly (p < .001) lowered body weight by 18 weeks of age. Results revealed that by 1.5 weeks of age the completely synostosed animals already exhibited brachycephalic cranial vaults, mid-facial hypoplasia, and increased flattening of the cranial base compared to unaffected siblings. This pattern continued through 18 weeks of age, with the partially synostosed animals exhibiting Intermediate morphologies. Compensatory overgrowths were noted primarily at the sagittal and frontonasal sutures, especially for completely synostosed animals. Findings revealed that the craniosynostotic rabbits followed predictable compensatory craniofacial growth patterns and exhibited secondary deformities similar to those reported for cases of human coronal suture synostosis. Such findings support continued efforts at developing this model to help understand, In part, the etiopathogenesis of this condition in human populations.
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Dissertations / Theses on the topic "Sagittal synostosis"

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Thwin, May. "Comparative outcomes of craniectomy versus cranial remodelling in the human infant with isolated sagittal synostosis." Thesis, 2015. http://hdl.handle.net/2440/92541.

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BACKGROUND Craniosynostosis is a congenital condition characterised by the premature closure of one or more cranial sutures. The sagittal suture is the most common site, comprising 40-60% of cases. Premature fusion of this suture can cause scaphocephaly, seen morphologically as a narrow elongated skull with a decreased cephalic index. Diagnosis is made clinically and/or radiologically. The goals of surgical correction and the techniques used have evolved over time. Whilst there has been a general move from limited craniectomy to calvarial remodelling, in recent times there has been a return towards less invasive methods. OBJECTIVES The objectives were to identify and synthesize the best available evidence on the morphological, functional and neurological outcomes of craniectomy compared to cranial vault remodelling and compare this to existing results. METHODS A systematic review of the literature was conducted using the Joanna Briggs Institute methodology. The review considered studies of infants with primary isolated sagittal synostosis operated on before a mean of two years of age. The intervention of interest was sagittal craniectomy; this was compared to cranial vault remodelling. Morphological, functional and neurological outcomes were included. Mortality, complications and aesthetic outcome were included as tertiary outcomes. A comprehensive search was undertaken across major databases. Retrieved studies were assessed by two independent reviewers for methodological validity. Data was extracted and where possible, pooled in statistical meta-analysis. Where this was not possible, findings were presented in narrative form. RESULTS Based on critical appraisal 27 studies, all descriptive in nature, were of suitable quality for inclusion. Meta-analysis was only possible for the primary morphological outcome (mean change in cephalic index post-operatively) based on two studies. This showed that at one year post-operative follow-up remodelling offers an advantage over craniectomy (Z = 4.16, P<0.0001). Narrative synthesis suggests that improvements of cephalic index to varying degrees were seen in patients receiving either procedure; whilst the mean change appears to peak early in patients who have undergone remodelling procedures, the trend suggests it may improve in the longer term after craniectomy. Whilst global IQ scores may be comparable to an age-matched population, narrative review suggests that patients with sagittal synostosis who have undergone a surgical correction of any type may have discrepancies in specific domains and may be at risk of developing learning disorders. There is insufficient primary research with inter-procedure comparison of pre-operative and post-operative cognitive or neurological outcome. CONCLUSIONS At one year follow-up, remodelling is superior to craniectomy in terms of mean change in cephalic index. However both procedures were seen to give improvements in the short, medium and long term. Neither procedure offers a distinct sustained advantage; longer follow-up is required to assess the comparative improvement over time. There is insufficient evidence whether craniectomy or remodelling procedures offer superior functional or neurological outcome. Patients who have had surgical repair (any type) may have deficiencies in different subdomains and be at risk of learning disorders, whilst maintaining an age-appropriate global IQ and school performance. It is unknown if either surgery impart any restorative or protective benefit.
Thesis (M.Clin.Sc.) -- University of Adelaide, School of Translational Health Science, 2015
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Books on the topic "Sagittal synostosis"

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Chen, Austin H. Craniofacial effects of neurocranial surgery in isolated sagittal synostosis. 2007, 2007.

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Book chapters on the topic "Sagittal synostosis"

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Di Rocco, Federico. "Sagittal Synostoses." In Textbook of Pediatric Neurosurgery, 1–18. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-31512-6_58-1.

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Di Rocco, Federico. "Sagittal Synostoses." In Textbook of Pediatric Neurosurgery, 1409–23. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-72168-2_58.

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"Sagittal Synostosis." In Pediatric Neurosurgery, edited by James Tait Goodrich. Stuttgart: Georg Thieme Verlag, 2008. http://dx.doi.org/10.1055/b-0034-72762.

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Proctor, Mark, and Ali Hazama. "Sagittal Synostosis." In Pediatric Neurosurgery, 73–81. Oxford University Press, 2019. http://dx.doi.org/10.1093/med/9780190617073.003.0009.

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Sagittal synostosis is the most common type of craniosynostosis and classically presents with an elongated head shape combined with frontal bossing, ridging along the sagittal suture, and a narrow and prominent occiput. The fused sagittal suture limits the biparietal expansion of the head and results in the scaphocephalic head shape. Imaging is often not necessary to establish an accurate diagnosis. Both open and endoscopic minimally invasive repair can be considered for children less than 4–6 months of age. Endoscopic surgery is increasingly being performed, as this option has significantly less blood loss, requires less anesthesia time, and is well tolerated by the patient compared to the open technique. Post-operative adjuvant therapy with a cranial orthosis is essential to redirect skull growth and prevent early refusion of the craniotomy. Attentiveness to identifying air embolisms can prevent major complications during surgery.
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"163 Sagittal Synostosis." In Fundamentals of Operative Techniques in Neurosurgery, edited by Sander Connolly Jr., Guy M. McKhann, II, Judy Huang, Tanvir F. Choudhri, Ricardo J. Komotar, and Mocco. Stuttgart: Georg Thieme Verlag, 2010. http://dx.doi.org/10.1055/b-0034-81044.

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"9 Scaphocephaly/Sagittal Synostosis." In Controversies in Pediatric Neurosurgery, edited by George I. Jallo, Karl F. Kothbauer, and Gustavo Pradilla. Stuttgart: Georg Thieme Verlag, 2010. http://dx.doi.org/10.1055/b-0034-80789.

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"13 Sagittal Synostosis Repair Surgery." In Pediatric Neurosurgery: Tricks of the Trade, edited by Alan R. Cohen. Stuttgart: Georg Thieme Verlag, 2016. http://dx.doi.org/10.1055/b-0035-125898.

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