If the jugular bulb normally surrounded by a bony layer in jugular fossa is anatomically over the inferior surface of the bony annulus, in the middle ear or over the basal turn of cochlea, it is then named as high jugular bulb (HJB). It may be dehiscent or aberrant. It is reported to occur in 5% of the temporal bone specimens. In accordance with the literature jugular bulb compression, jugular vein ligation and embolization are suggested in such cases. In both of the presented cases, there was bleeding from jugular bulb during surgery and jugular bulb was compressed with bone wax and Surgicel, but sigmoid sinus has been compressed after failure to stop bleeding through jugular bulb compression. Venous MR angiographies showed no flow in postoperative controls. Although it is very rarely seen clinically, we present two HJB cases and different treatment perspectives accompanied by literature.
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http://dx.doi.org/10.1007/s00405-007-0545-0 | DOI Listing |
J Int Adv Otol
November 2024
Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea.
Background: Achondroplasia, the most prevalent form of skeletal dysplasia involving short stature, necessitates a multidisciplinary approach that includes otology and auditory rehabilitation. Despite this, the clinical characteristics of hearing loss and otologic manifestations in achondroplasia patients remain poorly defined. This study aimed to explore the prevalence and treatment outcomes of otologic disease in individuals with achondroplasia.
View Article and Find Full Text PDFMorphologie
November 2024
Comenius University Bratislava, Sasinkova 2, Bratislava 811 08, Slovak Republic. Electronic address:
Background: The human skull contains various foramina, including the posterior condylar canal (PCC), which allows the passage of emissary veins. The PCC connects the jugular foramen to the condylar fossa and facilitates venous drainage between the jugular bulb and suboccipital venous plexus. Due to its variable size and location, the PCC can be mistaken for pathological structures, posing challenges during neurosurgical procedures.
View Article and Find Full Text PDFActa 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 PDFResuscitation
November 2024
Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Department of Emergency Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Background: Elevated jugular bulb venous oxygen saturation (SjvO2) after cardiac arrest may be due to diffusion-limited oxygen extraction secondary to perivascular edema. Treatment with hyperosmolar solution (HTS) may decrease this edema and thus the barrier to oxygen diffusion. Alternatively, SjvO2 may rise when cerebral metabolic rate declines due to irreversible cellular injury, which would not be affected by HTS.
View Article and Find Full Text PDFJ Craniofac Surg
November 2024
Department of Anatomy, Faculty of Medicine, "Victor Babeş" University of Medicine and Pharmacy, Timişoara, Romania.
Dehiscences of the intrapetrous canal of the facial nerve (FN) and those of a high jugular bulb (HJB) have various incidences. However, the HJB-FN common dehiscent osseous wall is a scarce finding and rarely reported. Thus, this work aimed to study this peculiar intrapetrous morphology on computed tomograms (CTs).
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