Adjustment of the endoscopic third ventriculostomy entry point based on the anatomical relationship between coronal and sagittal sutures

Chen, Fangxiang; Chen, Tsinsue; Nakaji, Peter

doi:10.3171/2012.11.jns12477

Cited by 10 publications

(2 citation statements)

References 24 publications

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“…The coronal suture lies on each side of the bregma but the coronal suture does not extend perpendicular to the midline. Chen et al [14] stated that the distance to this perpendicular line; that is, the coronal plane from the coronal suture gradually increases with distance from the bregma. In the same way, the central sulcus and the precentral gyrus bow forward as they pass from the midline.…”

Section: Discussionmentioning

confidence: 99%

Localization of the bregma and its clinical relevance

Solmaz

2018

Anatomy

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Objectives: External landmarks on the skull are important guides in various neurosurgical procedures. The localization of the bregma is vitally important in bedside ventriculostomy and craniotomies. The aim of the current study was to verify the localization of the bregma. Methods: This was performed on dry skulls (n=72) and sagittal computerized tomography (CT) images of patients (n=100). The age and the sex of dry skulls were unknown. Of the 100 patients, 48 were males and 52 were females and the mean age for males was 51.14 and for females was 55.34. The distance between nasion to inion and nasion to bregma were measured from both dry skulls and on multiplanar reformation (MPR) sagittal images. The ratio of the two measurements was calculated. Results: The nasion to bregma distances on 72 dry skulls ranged between 120-140 mm: the average distance was 124.3±6.9 mm. The nasion to inion distance ranged between 295-345 mm; the average was 320.8±14.4 mm. The ratio of nasion to bregma distance to nasion to inion distance was calculated as 0.384. The nasion to bregma distance obtained from 100 CT images scans ranged from 107 to 139 mm (average 126.6±7.3) mm. The nasion to inion distances ranged between 301 and 356 (average 330.2±15.2) mm. The ratio of nasion to bregma distance to nasion to inion distance was calculated as 0.383. Measurements for females were lower than males, but there was no statistical significance between genders. The multiplication of the nasion to inion distance by 0.38 gave the location of bregma for both genders. Conclusion: An accurate and reliable ratio (0.38 times the distance from nasion to inion) was obtained to define the bregma. The coronal suture lay on each side of bregma, so knowing the exact localization of bregma and of the coronal suture can be vitally important in various surgical procedures to the cranium.

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Section: Discussionmentioning

confidence: 99%

Localization of the bregma and its clinical relevance

Solmaz

2018

Anatomy

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“…Different clinicians have dissimilar opinions about patients with ETH (7,11,27,33). In patients with ETH not causing intracranial hypertension, increased hydrostatic pressure in the dilated temporal horn inhibits CSF secretion.…”

Section: A B C Dmentioning

confidence: 99%

Risk factors and the management of entrapped temporal horn following lateral ventricular tumor surgery

Song¹,

Yuan²,

Shen³

et al. 2022

Turkish Neurosurgery

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AIM:To investigate the risk factors and optimize the management of entrapped temporal horn (ETH) following lateral ventricular tumor surgery. MATERIAL and METHODS:We reviewed 41 cases of lateral ventricular tumors treated at the department of neurosurgery of our institution between January 2012 and September 2020. We summarized and analyzed the preoperative symptoms, intraoperative conditions, postoperative complications of the entrapped temporal horn, treatment measures, and recovery. RESULTS:Of 41 patients, 14 (34.1%) had ETH complications. A univariate analysis revealed that the tumor location, tumor diameter, the intraoperative use of hemostatic materials, no extraventricular drainage (EVD) was placed at the end of the operation, tumor stroke, the exposure mode of the tumor boundary, and postoperative meningitis were potential risk factors for the development of ETH. A multivariate binary logistic stepwise regression analysis revealed that tumor diameter ≥3.2 cm (OR=14.808, p=0.037), tumor stroke (OR=50.793, p=0.015), non-EVD (OR=0.023, p=0.033), and the mechanical separation of the tumor boundary (OR=30.617, p=0.045) were risk factors for ETH.CONCLUSION: ETH often occurs following the surgery of lateral ventricle tumors. Large tumor diameter, tumor stroke, non-EVD at the end of operation, and the mechanical separation of the tumor boundary are the risk factors of ETH. The natural exposure of the tumor boundary during surgery, avoiding the use of hemostatic materials, placing an EVD tube at the end of operation, and postoperative infection control can effectively reduce the occurrence of ETH. It is essential to select the appropriate treatment method for patients with postoperative ETH.

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Iatrogenic and Infectious Complications

Chesler

Jallo

2014

Complications of CSF Shunting in Hydrocephalus

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Adjustment of the endoscopic third ventriculostomy entry point based on the anatomical relationship between coronal and sagittal sutures

Cited by 10 publications

References 24 publications

Localization of the bregma and its clinical relevance

Localization of the bregma and its clinical relevance

Risk factors and the management of entrapped temporal horn following lateral ventricular tumor surgery

Iatrogenic and Infectious Complications

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