Nathan J. Smischney, MD
Honolulu—Critically ill patients who demonstrate an elevated modified shock index (MSI) within the first 24 hours of ICU admission have a significant risk for death.
MSI, which is the ratio of elevated heart rate to mean arterial pressure, may be a better predictor of mortality than shock index (SI) because MSI incorporates both systolic and diastolic blood pressures, while SI incorporates only systolic blood pressure, according to Nathan J. Smischney, MD, an