Sigmoid Sinus Exposure
Sigmoid Sinus Exposure - Related Videos
08:46
Nose, Sinuses, Oral Cavity and Pharynx Exam
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2023
Source: Richard Glickman-Simon, MD, Assistant Professor, Department of Public Health and Community Medicine, Tufts University School of Medicine, MA This video provides an overview of sinus, nose, and throat examinations. The demonstration begins with a brief overview of the anatomy of the region. The upper third of the nose is bony, and the bottom two-thirds are cartilaginous. Air entering the nares passes through the nasal vestibules and into the narrow passageway between the nasal septum...
06:43
Quantitative Analysis and Characterization of Atherosclerotic Lesions in the Murine Aortic Sinus
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Cited by 51 •
2013
We describe procedures to quantify and characterize atherosclerotic lesions in mouse models using precision sectioning of the aortic sinus and ascending aorta combined with histochemical and immunohistochemical analysis.
07:34
Establishment of a Modified Ferric Chloride-Induced Superior Sagittal Sinus Thrombosis
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2025
This study presents a protocol for establishing a reproducible, minimally invasive rat model of superior sagittal sinus thrombosis induced by ferric chloride, utilizing a silk-suture method in combination with laser speckle contrast imaging and high-resolution ultrasound for evaluation.
08:44
Formation of Human Prostate Epithelium Using Tissue Recombination of Rodent Urogenital Sinus Mesenchyme and Human Stem Cells
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Cited by 10 •
2013
To unravel the earliest molecular mechanisms underlying prostate cancer initiation, novel and innovative human model systems and approaches are desperately needed. The potential of pre-prostatic urogenital sinus mesenchyme (UGSM) to induce pluripotent stem cell populations to form human prostate epithelium is a powerful experimental tool in prostate research.
09:08
Developing a Salivary Antibody Multiplex Immunoassay to Measure Human Exposure to Environmental Pathogens
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Cited by 11 •
2016
In the current climate of scarce resources, new technologies are emerging that allow researchers to conduct studies cheaper, faster and with more precision. Here we describe the development of a bead-based salivary antibody multiplex immunoassay to measure human exposure to multiple environmental pathogens simultaneously.
FAQs
Preserving the sinus wall helps maintain venous drainage from the brain toward the internal jugular vein and limits bleeding during bone removal. This makes control of the exposed area central to the technique rather than treating the sinus as an obstacle. The principle is especially important when access extends through the temporal bone or posterior fossa.
The position and course of the sigmoid sinus determine where bone can be removed and how nearby structures can be approached safely. Because the channel carries blood away from the brain, surgeons must account for its relationship to the temporal bone, dura, and adjacent neurovascular anatomy. This anatomy-based planning helps balance access with preservation of drainage.
Exposure requires controlled removal of the overlying bone while protecting both the sinus wall and surrounding dura. Simply removing bone without attention to these tissues could compromise venous drainage or increase bleeding. The technique therefore combines structural access with deliberate preservation of the coverings and vascular channel that occupy the operative field.
The procedure begins by selecting an approach suited to the relevant anatomy, often through a mastoid or posterior fossa route. Bone overlying the sigmoid sinus is then removed carefully to reveal the channel. Throughout this process, the sinus wall and surrounding dura remain protected, providing controlled access while limiting disruption of venous drainage.
This exposure can support operations involving the temporal bone, cerebellopontine region, or adjacent neurovascular structures. Its value lies in creating access to these areas while accounting for a major venous drainage pathway. The chosen approach depends on which neighboring structures require access and how the sigmoid sinus is positioned within the surrounding anatomy.
A successful exposure provides access without unnecessarily interrupting the brain’s venous outflow. Maintaining the sinus wall and nearby dura supports continued drainage toward the internal jugular vein and helps limit operative bleeding. In biology and clinical anatomy, this illustrates how the function of a vascular structure constrains procedures performed in the bone and dura around it.