In 49 patients undergoing surgery on the lower limb with the use of a tourniquet, arterial PO2 and PCO2 were determined. In 16 cases they were also determined in the ischemic limb. In 40 of these patients coagulation studies were done and in 8 cases on blood from both the general circulation and from the ischemic limb. Some minutes after recirculation, PCO2 of the general circulation increased by 6.7 +/- 9 mm Hg. This increase is closely correlated with ischemia time and patient's weight. In the ischemic limb, PCO2 is about 72 +/- 10 mm Hg. In the general circulation, PO2 decreased by 21,6 +/- 42 mm Hg after recirculation. The most important changes were found in aged patients. PO2 in the ischemic limb decreased by 19 mm Hg. The changes in systemic PO2 and PCO2 are probably due to the return of blood from the ischemic limb in the general circulation. No changes of the coagulation factors were found with the exception of a small increase of anti-plasmine. Fibrinolysis occurred in 5 of the 8 patients studied.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Cardioembolic stroke caused by atrial myxoma.
BMJ Case Rep
January 2025
ARHC/Stroke Service, Naas General Hospital, Naas, Kildare, Ireland.
A woman in her early 60s presented with multiple transient neurological symptoms over the course of 20 months, including transient loss of power to her right lower limb. Initial workup with CT brain scan, carotid dopplers and ECG revealed no abnormality; however, MRI of the brain suggested recent ischaemic events in separate cortical territories. Subsequent transoesophageal echocardiogram revealed a large mobile mass histologically confirmed to be an atrial myxoma.
View Article and Find Full Text PDFALTERNATIVE AUTOLOGOUS VEIN GRAFTS VERSUS SINGLE SEGMENT GREAT SAPHENOUS VEIN IN LOWER EXTREMITY BYPASS SURGERY - SINGLE-CENTER STUDY.
Ann Vasc Surg
January 2025
1(st) Department of Pathology, Faculty of Medicine, Masaryk University and St. Anne's University Hospital, Brno, Czech Republic.
Objectives: Studies comparing alternative autologous vein grafts (AAVG) to single-segment great saphenous vein (ssGSV) grafts report mixed results. The status of AAVG as first choice when ssGSV is unavailable is not unequivocal, based on current evidence. Our study compares results between AAVG and ssGSV in lower extremity bypass surgery.
View Article and Find Full Text PDFAP39, a novel mitochondria-targeted hydrogen sulfide donor, promotes cutaneous wound healing in an in vivo murine model of acute frostbite injury.
Biomed Pharmacother
January 2025
Department of Surgery, Division of Urology, London Health Sciences Center, Western University, London, Ontario, Canada; Matthew Mailing Center for Translational Transplant Studies, London Health Sciences Center, Western University, London, Ontario, Canada; Multi-Organ Transplant Program, London Health Sciences Center, Western University, London, Ontario, Canada; Department of Microbiology & Immunology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, Ontario, Canada. Electronic address:
Frostbite injury refers to cold tissue injury which typically affects the peripheral areas of the body, and is associated with limb loss and high rates of morbidity. Historically, treatment options have been limited to supportive care, leading to suboptimal outcomes for affected patients. The pathophysiology of frostbite injury has been understood in recent years to share similarity with that of cold ischemia-reperfusion injury as seen in solid organ transplantation, of which mitochondria play an important contributing role.
View Article and Find Full Text PDFBackground: Although revascularization is first-line therapy for chronic limb-threatening ischemia (CLTI), there are no established treatments for patients in whom revascularization is not (or is a poor) option, including CLTI that has responded poorly to revascularization. This study verified the efficacy of the Rheocarna, a novel apheresis device, for no-option CLTI or poor-response CLTI after revascularization.
Methods And Results: This multicenter retrospective observational study analyzed 221 patients (221 limbs) with no- or poor-option CLTI (mean [±SD] age 71±10 years; males, 70.
Assessment of safety and effectiveness after percutaneous closure for decannulation of Veno-Arterial Extracorporeal Membrane Oxygenation: A systematic review and meta-analysis.
J Vasc Access
January 2025
RISE@Health, Departamento de Biomedicina - Unidade de Anatomia, Faculdade de Medicina, Universidade do Porto, Porto, Portugal.
Introduction: Veno-Arterial Extracorporeal Membrane Oxygenation (VA-ECMO) has emerged as a crucial component of critical care medicine, mainly as a lifesaving intervention for patients experiencing refractory cardiac arrest and respiratory failure.
Background: In the past, VA-ECMO decannulation was surgical and often associated with a high rate of periprocedural complications, such as surgical site infection, bleeding, and patient mobilization costs. To reduce the rate of these adverse events, many percutaneous techniques utilizing suture-mediated closing devices have been adopted.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!