The American surgeon
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The American surgeon · Dec 1992
Comparative StudyContinuous intra-arterial oxygen monitoring: accuracy and reliability in the surgical intensive care unit.
The accuracy and reliability of an invasive intra-arterial oxygen sensor catheter was evaluated in 20 critically ill surgical intensive care unit (SICU) patients. All patients required continuous arterial blood pressure monitoring, at least 72 hours of ventilator support, and intermittent arterial blood gas sampling for clinical management. The intra-arterial sensor provided continuous PO2 (PsO2) values on a bedside electronic monitor. ⋯ Even though matched PsO2 and PaO2 measurements demonstrated a linear relationship, only 34 per cent of the variation in PsO2 could be attributed to changes in PaO2. Technical sensor or instrument problems affected PsO2 monitoring in 17 of 20 patients and 28 of the 33 sensors tested. The authors conclude that continuous intra-arterial monitoring of PsO2 is a novel idea, but technical issues limit its use in acutely ill, conscious SICU patients.
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The American surgeon · Dec 1992
Occult traumatic pneumothorax: immediate tube thoracostomy versus expectant management.
Occult pneumothorax is pneumothorax identified by computed tomography but not seen on conventional chest radiographs. Twenty-seven occult traumatic pneumothoraces in 26 patients were identified retrospectively at the authors' level I trauma center. Of these, 24 patients survived to discharge or transfer; 2 died of brain injury. ⋯ The authors' data support the conclusion that it is safe to withhold immediate TT in patients who are hemodynamically stable. Close clinical observation and interval chest radiography can identify those patients who require subsequent TT. Prospective study of larger numbers of patients is needed to confirm the safety and cost efficacy of this approach.
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The American surgeon · Dec 1992
Glucose intolerance in critically ill surgical patients: relationship to total parenteral nutrition and severity of illness.
The authors evaluated the relative influence of severity of illness and total parenteral nutrition (TPN) on glucose intolerance in critically ill surgical patients. Records of TPN administration, serum glucose measurements, and the simplified acute physiology score (SAPS) were extracted from the surgical intensive care unit (SICU) and hospital clinical information systems (CIS) for all patients admitted to the SICU from October 1, 1989 through March 31, 1990. Critical hyperglycemia was defined as glucose > 400 mg/dL and critical hypoglycemia as < 40 mg/dL. ⋯ Mean glucose levels rose with increasing SAPS in both TPN and non-TPN patients. When stratified by severity of illness, TPN patients did not have significantly higher glucose levels than non-TPN patients except for the SAPS = 15 category. The authors conclude that the glucose intolerance noted in critically ill TPN patients reflects their underlying severity of illness rather than TPN administration per se.
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The American surgeon · Oct 1992
Comparative StudyCost containment in the operating room: use of reusable versus disposable clothing.
The need for fiscal austerity has prompted the re-evaluation of many aspects of medical care. Recent events in the northeastern United States have caused an increased awareness of the need for environmental responsibility as well. ⋯ The reusable scrub suits and gowns resulted in a savings in excess of $100,000 compared to the center using disposables. The authors conclude that hospitals should re-evaluate their use of disposable operating room attire to reduce operating costs and the amount of medical waste generated.