Annals of vascular surgery
-
Superior vena cava (SVC) hemorrhage due to iatrogenic injury is an infrequent but important event. We report the case of a 56-year-old woman with a history of right pneumonectomy for lung cancer with iatrogenic SVC injury and hemorrhage. After unsuccessful attempts at suture repair of the defect, an endovascular approach using a stent graft succeeded in controlling hemorrhage while maintaining vessel patency. To our knowledge, this is the third report of SVC hemorrhage control using this technique, and it supports the experience of other authors that endovascular stenting is an effective means of treating emergent venous hemorrhage.
-
Comparative Study
Alterations in cerebrospinal fluid PO(2), PCO(2), and pH measurements during and after experimental thoracic aortic cross-clamping.
In a model of aortic cross-clamping, we studied the use of a multiparameter sensor for measurement of cerebrospinal fluid (CSF) PO(2), PCO(2), and pH during and after aortic cross-clamping. The present study addressed the above-mentioned alterations and their relation according to time intervals. In 31 pigs, a sensor was introduced into the intrathecal space and epidural laser Doppler was used to measure spinal cord blood flow (SCF). ⋯ We recognized that O(2) tension reacts faster than PCO(2) and pH. It is possible for O(2) tension to be used faster than produced CO(2) in the ischemic medium, although it is known that the diffusion rate of CO(2) is much higher. Spinal cord O(2) tension monitoring is an important method to detect ischemic changes.