A high-riding jugular bulb can complicate standard otologic and neurotologic approaches and must be taken into account during surgical planning.
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Characterization of jugular bulb position on computed tomography (CT) with implications for excision of vestibular schwannomas.
Neurosurg Rev
January 2025
Department of Neurological Sciences, Christian Medical College Vellore- Ranipet Campus Vellore, Vellore, Tamil Nadu, 632517, India.
To describe the distribution of jugular bulb position and pneumatization of posterior lip of internal auditory meatus (IAM) in patients with vestibular schwannoma (VS). This retrospective study included 43 patients who had a thin slice (< 2 mm) CT temporal bone for preoperative planning of retrosigmoid approach for excision of VS between March 2011 and March 2021. On computed tomography (CT), high riding jugular bulb was defined by its relationship to IAM and correlated with type of jugular bulb according to Manjila et al.
View Article and Find Full Text PDFAvoidance and Management of Complications in Retrosigmoid Approach to Vestibular Schwannomas.
Acta Neurochir Suppl
November 2024
DNB Neurosurgery, Department of Neurosurgery and Gamma Knife Radiosurgery, P. D. Hinduja Hospital and Medical Research Center, Veer Savarkar Marg, Mahim, Mumbai, India.
An experience with two rare complications during surgery of vestibular schwannomas (VSs) is presented, and measures to avoid and manage the complications are discussed.Case A: Spinal cord ischemia in semi-sitting position: A 47-year-old with a giant vestibular schwannoma (VS) underwent surgery through a retrosigmoid approach in the semi-sitting position. The intraoperative phase was uneventful, except for an episode of moderate hypotension.
View Article and Find Full Text PDFPreoperative Assessment Using CT and MRI Scans of the Temporal Bone to Determine the Degree of Difficulty in Cochlear Implant Surgery.
Cureus
July 2024
Radiodiagnosis, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND.
Background Cochlear implant surgery is a complex procedure influenced by the anatomical structures of the temporal bone. Preoperative imaging using CT and MRI can provide critical insights into the surgical challenges that may be encountered. This study aims to evaluate the role of CT and MRI in preoperative assessment to predict the difficulty of cochlear implant surgery in terms of surgical time.
View Article and Find Full Text PDFLateral Temporal Bone Resection With a High-Riding Jugular Bulb.
Otol Neurotol
September 2024
Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas.
A high-riding jugular bulb can complicate standard otologic and neurotologic approaches and must be taken into account during surgical planning.
View Article and Find Full Text PDFMorphometric Analysis of the Retrolabyrinthine Approach to the Posterior Fossa.
World Neurosurg
August 2024
Centro de Ciências Médicas, Universidade Federal de Pernambuco, Recife, Brazil.
Introduction: The retrolabyrinthine approach provides shorter working distance and less cerebellar retraction compared with the retrosigmoid approach to the internal acoustic canal (IAC) and cerebellopontine angle cistern. However, exposure of the ventral surface of the brainstem and petroclival region may be restricted. Trautmann's triangle (TT), an area intimately related to this region, demonstrates significant anatomical variability, which may adversely affect the ease of the approach.
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