Computerised system for the continuous measurement of azygos venous blood flow.
نویسندگان
چکیده
منابع مشابه
Computerised system for the continuous measurement of azygos venous blood flow.
A computer assisted apparatus for the continuous measurement of azygos blood flow is described. The system was validated in vitro and changes in flow which occur with respiration and Valsalva manoeuvre are illustrated. This apparatus allows real time inspection of flow values which enables changes in flow over short periods to be readily studied.
متن کاملAnatomical variations of the azygos venous system
The azygos vein (gr. azygos – 'unpaired') typically starts from the posterior aspect of the inferior vena cava (IVC), at or below the level of the renal veins. The origin is not constant. If present, the lumbar azygos ascends anterior to the upper lumbar vertebrae. It may pass behind the right crus of the diaphragm or pierce it, or it may traverse the aortic hiatus to the right of the cisterna ...
متن کاملMeasurement of venous flow by continuous thermodilution and its application to measurement of mammary blood flow in the goat.
• Fegler showed in 1957 that the thermodilution method of measuring cardiac output could be used also to measure the blood flow in the central veins of dogs. Small quantities (0.4 to 1.0 ml) of saline at room temperature were rapidly injected through a three-holed needle into the vein, and the brief fall in temperature was recorded photographically from a thermocouple located 7 to 15 cm downstr...
متن کاملPrenatal diagnosis of a variant of the azygos venous system
BACKGROUND The azygos venous system consists of the azygos vein on the right side and the hemiazygos and accessory hemiazygos on the left side. The azygos vein runs through the abdominal cavity along the right side of the vertebral bodies, in a cranial direction, passes through the diaphragm and reaches the mediastinum, where it forms the arch of the azygos which flows into the superior vena ca...
متن کاملEffects of non-shunting operation on azygos venous blood flow in cirrhotic patients.
Azygos venous blood flow and other haemodynamic parameters were measured in 14 cirrhotic patients to investigate the effects of a non-shunting operation, oesophageal transection with paraoesophagogastric devascularisation. Azygos venous blood flow measured by the local continuous thermal dilution method was significantly reduced by 13.8% after the operation (428 (41) v 369 (33) ml/min). Hepatic...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Gut
سال: 1992
ISSN: 0017-5749
DOI: 10.1136/gut.33.3.372