نتایج جستجو برای: air emboli
تعداد نتایج: 209049 فیلتر نتایج به سال:
the study of air infiltration into the buildings is important from several perspectives that may be noted to energy and design of hvac systems, indoor air quality and thermal comfort and design of smoke control systems. given the importance of this issue, an experimental and numerical study of air infiltration through conventional doors and windows has been explored in iran. to this end, at fir...
background: pregnancy causes a small increase in risk of venous thromboembolism (vte), but a large increase in concern upon presentation during cesarean section with symptoms of pulmonary embolism (pe). pulmonary embolism clinical manifestations during spinal anesthesia could be misleading. we have presented 2 interesting cases of pregnant women underwent spinal anesthesia for cesarean section ...
A brain CT, performed because of subacute pain and weakness in the left arm of a 61-year-old man, revealed cerebral and faciocervical venous gas emboli (figures 1 and 2). A peripheral IV catheter had been placed 2 hours prior to CT without incident of disconnection. A second CT, performed 2 hours later, showed only persistent gas in the cavernous sinus. Twelve days later, CT was normal. Transth...
Anaesthetic management for Caesarean section in a pre-eclamptic patient with Ebstein's anomaly and a right to left intracardiac shunt was accomplished under general anaesthesia. Air bubbles in the venous line were meticulously eliminated to prevent paradoxical air emboli. A rapid sequence induction using standard doses of thiopentone and succinylcholine did not result in loss of consciousness a...
An ultrasonic Doppler was used to monitor embolic activity in the arterial line of an extracorporeal circuit. No differences in embolic activity were observed when either 100% N2 or 95% Oz-5% C02 gases were swept through a bubble oxygenator. Information is presented suggesting that nitrogen or air micro emboli are more deleterious than oxygen or carbogen microemboli. Consequently, this article ...
Pericardial suction blood (PSB) is known to be contaminated with fat droplets, which may cause embolic brain damage during cardiopulmonary bypass (CPB). This study aimed to investigate the possibility to detect fat emboli by a Doppler technique. An in vitro flow model was designed, with a main pump, a filter, a reservoir, and an injector. A Hatteland Doppler probe was attached to the circulatio...
Air embolization of the brain produces cerebral ischemia that can be focal and reversible. The method has previously been hampered by (1) lack of selective arterial injection of the embolus, (2) disruption of local hemodynamic relationships by ligation of major arterial channels, (3) excessive volume of the air embolus, and (4) uncontrolled bubble size. To minimize these factors, a technique wa...
Non-thrombotic PE does not represent a distinct clinical syndrome. It may be due to a variety of embolic materials and result in a wide spectrum of clinical presentations, making the diagnosis difficult. With the exception of severe air and fat embolism, the haemodynamic consequences of non-thrombotic emboli are usually mild. Treatment is mostly supportive but may differ according to the type o...
Pulmonary embolic disease is most commonly a manifestation of venous thromboembolism (VTE). However, fat, tumor, and air may all embolize to the pulmonary vasculature and lymphatics resulting in various clinical manifestations. Tumor emboli to small pulmonary vessels and lymphatics can lead to hypoxemic respiratory failure and shock. We present a 62-year-old male with history of mild COPD and e...
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