Accession Number : AD0785673

Title :   Two Prognostic Indices for the Trauma Patient,

Corporate Author : EDGEWOOD ARSENAL ABERDEEN PROVING GROUND MD

Personal Author(s) : Sacco,William J. ; Goldfarb,Michael A. ; Weinstein,Michael A. ; Ciurej,Terrence F. ; Cowley,R. Adams

Report Date : 1974

Pagination or Media Count : 12

Abstract : A number of pattern recognition techniques have been used to determine compact physiological and biochemical indices which quantitatively characterized post-traumatic states. These indices frequently characterize the patient more accurately than physicians. The paper reports on two indices. A trauma index (called the CHOP index) based on serum creatinine, hematocrit, serum osmolality, and systolic blood pressure, evolved from a retrospective and then a prospective analysis of over 700 patients. A decision rule which predicts death or survival resulted in a misclassification rate of less than 10% for patients in the Trauma Unit for more than one day. A respiratory index (R.I.) which is the alveolar-arterial oxygen difference divided by the arterial partial pressure of oxygen was investigated in a retrospective study of 177 consecutive intubated patients. All patients with an R.I. of two or greater were intubated. Patients with an R.I. over six had a 12% chance of survival. Prognosis regions are specified in the space determined by the two indices. A nomogram which allows one to follow the course of a patient with respiratory problems is described.

Descriptors :   *Trauma, *Pattern recognition, Shock(Pathology), Diagnosis(Medicine), Wounds and injuries, Indexes(Ratios), Survival(Personnel), Patients, Respiration, Blood chemistry

Subject Categories : Medicine and Medical Research

Distribution Statement : APPROVED FOR PUBLIC RELEASE