OBJECTIVE To evaluate whether tourniquet release intraoperatively is better than postoperative release in reducing overall blood loss, duration of surgery, duration of tourniquet, length of hospital stay, wound related complications and transfusion requirement. STUDY DESIGN Comparative study. PLACE AND DURATION OF STUDY Department of Surgery, The Aga Khan University Hospital, Karachi, from ...

BACKGROUND Tourniquet use recently became common in war, but knowledge gaps remain regarding analysis of recovered devices. The purpose of this study was to analyze tourniquets to identify opportunities for improved training. METHODS We analyzed tourniquets recovered from deceased service members serving in support of recent combat operations by a team at Dover Air Force Base from 2010 to 201...

Tissue damage during surgery induces coagulation factors and activates platelets. Surgical pain may provoke release of catecholamines, leading to hypercoagulability. We have investigated the effect of surgical pain on blood coagulability and fibrinolysis in orthopaedic operations using tourniquets in 22 patients undergoing total knee replacement. Patients were allocated to one of two groups to ...

BACKGROUND This study was conducted to compare and evaluate the effect of adding lornoxicam or nitroglycerine as adjuncts to lidocaine in intravenous regional anesthesia (IVRA). METHODS 60 patients were randomly separated into three groups, lidocaine group (group L), lidocaine+lornoxicam group (group LL), and lidocaine+lornoxicam+transdermal nitroglycerine group (group LL-N). Hemodynamic para...

The literature indicates that tourniquet-induced neurological injuries are relatively common and frequently occur at a subclinical level. In order to evaluate the pressure transmitted to the major peripheral nerves of the arm by an externally applied pneumatic tourniquet, a fully implantable biomedical pressure transducer was placed adjacent the radial, median and ulnar nerves in six cadaver up...

After tourniquet (4 hours) of the left femoral region of the dog, secretion rate of catecholamines in adrenal venous blood was studied by fluorometric method and the following conclusions were obtained. 1) Continuous tourniquet alone did not cause increase of adrenal medul-lary secretion. However, when the 4 hours' tourniquet was followed by reopening of blood circulation, secretion rate of adr...

We hypothesize that an anecdotally observed increase in tourniquet breakage and decrease in efficacy may be secondary to environmental exposure during military deployment. This was a study comparing efficacy and breakage of 166 Afghanistan-exposed tourniquets to 166 unexposed tourniquets. Afghanistan exposure was defined as tourniquet carriage by field staff in the operational environment for a...

UNLABELLED The precise mechanism of tourniquet-induced arterial blood pressure increase is unknown. We determined the effect of preoperative oral dextromethorphan (DM) on arterial blood pressure and heart rate changes during tourniquet inflation in knee cruciate ligament reconstruction patients under general anesthesia. Patients in the DM group (n = 38) received oral DM 30 mg, and patients in t...