Cross-clamping of the descending aorta

Effects of desflurane on systemic, preportal and renal circulatory responses to infra‐renal aortic cross‐clamping in the pig

“…The magnitude of these responses is dependent on the level of the aortic clamp. Thus, in the dog, clamping of the thoracic aorta has been reported to increase MAPpRox by about 40% and SVR by about 60% (18), while clamping of the abdominal aorta usually is associated with a less pronounced increase in MAPPRO, (6). In the present pig study, we found that infra-renal AXC increased MAPpRo, by 26.5%…”

Efeitos neuroprotetores do diltiazem em coelhos com oclusão da aorta

“…A number of physiopathological events play its role in spinal cord injury that is; embolisation and thrombosis of the critical arteries; interruption of these arteries inadequate functioning of the reimplanted arteries and the tamponade effect of increased cerebrospinal fluid (CSF) pressure due to hypertension in the proximal aorta play a role in the occurrence of spinal cord injury [3][4][5].…”

Further Experience with Exsanguination for Descending Thoracic Aneurysms

“…In fact, some investigators use and advise CSF drainage in cases involving descending thoracic aortic aneurysms. [19][20][21][22][23] Continuous central venous and CSF pressure monitoring in patients undergoing open distal anastomosis with exsanguination has shown that, although cross-clamping initially causes an increase in CSF pressure, this effect is reversed when the aneurysm is opened and the abdominal aorta is decompressed. Therefore, the exsanguination method appears to automatically create the desired perfusion gradient, thereby enhancing spinal cord circula-tion.…”