Comparison of Modified Shock Index and Shock Index for Predicting Massive Transfusion in Women with Primary Postpartum Hemorrhage: A Retrospective Study

• Published in: Medical science monitor 2024-03, Vol.30, p.e943286-e943286
• Main Authors: Kwon, Hyojeong, Sohn, Chang Hwan, Kim, Sang-Min, Kim, Youn-Jung, Ryoo, Seung Mok, Ahn, Shin, Seo, Dong-Woo, Kim, Won Young
• Format: Article
• Language: English
• ISSN: 1643-3750; 1643-3750
• DOI: 10.12659/MSM.943286

BACKGROUND The modified shock index (MSI) is calculated as the ratio of heart rate (HR) to mean arterial pressure (MAP) and has been used to predict the need for massive transfusion (MT) in trauma patients. This retrospective study from a single center aimed to compare the MSI with the traditional shock index (SI) to predict the need for MT in 612 women diagnosed with primary postpartum hemorrhage (PPH) at the Emergency Department (ED) between January 2004 and August 2023. MATERIAL AND METHODS The patients were divided into the MT group and the non-MT group. The predictive power of MSI and SI was compared using the areas under the receiver operating characteristic curve (AUC). The sensitivity, specificity, positive predictive value (PPV), and negative predictive value were calculated. RESULTS Out of 612 patients, 105 (17.2%) required MT. The MT group had higher median values than the non-MT group for MSI (1.58 vs 1.07, P