The internal jugular vein valve may have a significant role in the prevention of venous reflux: evidence from live and cadaveric human subjects.
作者： M. A. Silva , K. I. Deen , D. J. S. Fernando , A. H. Sheriffdeen
DOI: 10.1046/J.1475-097X.2002.00418.X
关键词: Intrapleural pressure 、 Internal jugular vein 、 Intracranial pressure 、 Surgery 、 Hydrostatic pressure 、 Venous blood 、 Venous return curve 、 Central venous pressure 、 Duplex scanning 、 Medicine
摘要: Introduction: The internal jugular vein valve (IJVV), which is situated just above the termination of vein, only between heart and brain. This means that it plays a role in prevention cephalad flow venous blood. If IJVV damaged or becomes incompetent, increase intrapleural pressure could result raised intracranial pressure. Additionally, pulse (JVP) used clinically to estimate right atrial pressure, functional may prevent accurate estimation JVP. Objectives: To describe presence competence post-mortem live human subjects. Design – setting methods: The anatomical appearance from 30 cadavers was studied. Competence checked by measuring maximum hydrostatic before reflux occurred through valve. function evaluated 25 subjects using colour duplex scanning. Results: The present all its (60 IJVVs subjects). bicuspid most cases (93%). 41 three (7%) were found be incompetent. All competent. Conclusion: This study confirms vein. therefore blood atrium into
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