Healthcare associated infections

Healthcare associated infections affect 2 million patients annually and add approximately $3.5 billion to the cost of health care. Patients may acquire infection in hospital through contact with personnel or from a nonsterile environment, or infection may

Focused ultrasound surgery

Apart from passing current through the patient to produce localized heating and tissue destruction (either cutting or coagulation), there are other means of transferring electrical potential energy into energy for surgery. Two of the most prominent ways

Clinical case – neuroendocrine tumor

The patient is a 47y WF with a history of scleroderma and Reynaud’s disease, who suffers with episodes of explosive watery diarrhea, hypotension and severe diaphoresis. These episodes occur one to two times a month and last

Jehovah’s Witnesses and Anesthesia

I recently had a patient referred to me with a partially obstructing sigmoid carcinoma. His HCT was 45 and a CT scan revealed a moderate sized sigmoid mass without invasion of adjacent organs, ureteral obstruction, visible lymphadenopathy

Principles of electrosurgery

True electrosurgery, colloquially referred to as the “Bovie” (following its inventor, William T. Bovie, engineer and collaborator of Harvey Cushing), is perhaps the most ubiquitous power source in surgery. Although the principle of using heat to cauterize

Wounds in general surgery

Only a century ago, complicated and incomplete healing after injury was the rule rather than the exception. Surgeons had little choice but to accept draining wounds and invasive infections. New means of aiding healing and preventing infections

The nature of wound healing

Immediately after injury, the coagulation products fibrin, fibrinopeptides, fibrin split products, and complement components begin to attract inflammatory cells — particularly macrophages — into the wound. Platelets activated by thrombin release IGF-1, TGF, TGF, and PDGF, then

Decubitus ulcers in surgery

Decubitus ulcers can be disastrous complications of immobilization. They result from prolonged pressure that robs tissue of its blood supply, irritative or contaminated injections, prolonged contact with moisture, urine, and feces. Most patients who develop decubitus ulcers

Implant materials in surgery

Although prosthetic materials in surgery are constantly being improved, none are ideal in regard to tissue compatibility, permanent fixation, and resistance to infection.

Intravenous Infusion of Insulin in Glucose Solution

Intravenous Infusion of Insulin in Glucose Solution Another option is to treat type 1 diabetics undergoing surgery by giving an infusion of 5% or 10% glucose solution containing 5, 10, or even 15 units of insulin per