نتایج جستجو برای: venous
تعداد نتایج: 71246 فیلتر نتایج به سال:
The common pathway leading to venous ulceration in the lower limbs includes ambulatory venous hypertension, caused by valvular dysfunction and thrombosis of segments of the deep venous system (1-3). Precisely how this hypertension leads to ulceration is unclear; several studies indicate that increased venous pressure disturbs normal function of the microcirculation and interstitium, including a...
Venous gangrene represents the most severe manifestation following deep venous thrombosis (DVT), and presents as acral ischaemic necrosis. The pathophysiology is driven by an acquired coagulopathic state leading to microvascular outcomes are generally poor. This study was aimed at analysing in these rare group of patients who presented with a single institution during two year period.
BACKGROUND The objective of this study was to examine the correlation between arterial blood gas (ABG) and peripheral venous blood gas (VBG) samples for all commonly used parameters in patients admitted to a medical intensive care unit (ICU). METHODS A single-center, prospective trial was carried out in a medical ICU in order to determine the level of correlation of ABG and peripheral VBG mea...
Background: Ulcer is a severe complication from chronic venous insufficiency; thus, its pathophysiology needs to be deeply understood. Venous Doppler ultrasonography is the most appropriate complementary imaging study, enabling the study of the superficial and deep venous system, the diameter and flow of the veins. Recent studies have suggested that popliteal vein reflux is an important factor ...
Venous return is a major determinant of cardiac output. Adjustments within the venous system are critical for maintaining venous pressure during loss in circulating volume. This article reviews two factors that are thought to enable the venous system to compensate during acute hemorrhage: 1) changes in venous elastance and 2) mobilization of unstressed blood volume into stressed blood volume. W...
Surgical correction of deep venous reflux is a valuable adjunct in treatment of selected patient with lower limb venous ulcer. Deep venous obstruction and superficial reflux is must be corrected first. Sustained venous ulcer healing and reduced ambulatory venous hypertension can be achieved in patients with both primary and secondary deep venous insufficiency. When direct valve repair is possib...
Introduction: Sudden sensorineural hearing loss (SSNHL) is an important otological emergency. Up to 90% of the cases are idiopathic. Cerebral venous thrombosis (CVT) is an extremely rare identifiable cause as it only represents 0.5% of all strokes. Case Report: In this paper, an unusual case of bilateral SSNHL secondary to bilateral CVT with rapid and complete recovery is reported. The patie...
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