Cerebral blood flow during extracorporeal circulation
نویسندگان
چکیده
منابع مشابه
Studies on blood viscosity during extracorporeal circulation.
Blood viscosity was studied during extracorporeal circulation by means of a cone in cone viscometer. This rotational viscometer provides sixteen kinds of shear rate, ranging from 0.05 to 250.2 sec-1 • Merits and demerits of the equipment were described comparing with the capillary viscometer. In experimental study it was well demonstrated that the whole blood viscosity showed the shear rate dep...
متن کاملNew ultrasonic radiation reduces cerebral emboli during extracorporeal circulation.
OBJECTIVE Cardiac surgery is associated with intraoperative cerebral emboli, which can result in postoperative neurological complications. A new ultrasonic transducer (EmBlocker) can be positioned on the ascending aorta and activation of the EmBlocker is expected to divert emboli to the descending aorta, thereby decreasing emboli in the cerebral arteries. In this preliminary animal study, safet...
متن کاملClinical study of the cerebral hemodynamics during extracorporeal circulation.
The cerebral circulation was studied on 40 clinical cases which underwent open heart surgery under extracorporeal circulation by the low flow rate-hypothermic-hemodilution technique, by means of Kr85, opthalmoscope, blood gas and pH, and cerebral metabolism. Cerebral blood flow decreased to 65.2 per cent of the control value after the start of extracorporeal bypass, but recovered by the later p...
متن کاملBlood volume and haemodilution in extracorporeal circulation: changes during perfusion.
An adequate circulating blood volume is recognized to be important after open-heart surgery (Carr, Sloan, and Tovar, 1960). A number of post-operative studies have attempted to correlate clinical determinations of blood loss with volumes estimated by tracer techniques. Discrepancies noted have been attributed to extensive haemorrhage into traumatized tissue redistribution of functional extracel...
متن کاملTracheal Chondrosarcoma Excised With Extracorporeal Circulation
Introduction: Tracheal chondrosarcoma (TCS) is a rare malignancy, with only 19 cases described in the literature to date. Case presentation: Herein, we presented the third-largest TCS with such an airway compromise that neither orotracheal intubation nor jet ventilation or even tracheostomy was possible. So, extracorporeal circulation was needed to excise the tumor in a one-stage procedure. Th...
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ژورنال
عنوان ژورنال: The Journal of Thoracic and Cardiovascular Surgery
سال: 1984
ISSN: 0022-5223
DOI: 10.1016/s0022-5223(19)38466-1