[Evolution of the obstetrical Shock Index in postpartum haemorrhage according to the use of sulprostone].

The Shock Index (SI) is used in emergency medicine to assess the severity of active bleeding and in the postpartum context for postpartum haemorrhage (PPH). We investigated the diagnostic value of haemodynamic parameters (SI, heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP) and mean arterial pressure (MAP)) in predicting subsequent use of uterotonic sulprostone treatment. This was a retrospective study including parturients with PPH ≥ 500mL between January 2017 and December 2018. Hemodynamic parameters at the diagnosis of PPH were compared according to whether the patient required subsequent sulprostone treatment (sulprostone(+) group) or not (sulprostone(-) group). We included in the analysis 147 patients. The SI was significantly higher in the sulprostone(+) group (0.92±0.28 vs. 0.83±0.22; p=0.04). The SBP (107.2±17.5 vs. 113.8±17.7mmHg; p=0.03), DBP (56.8±12,2 vs. 61.5±13,2mmHg; p=0.04), MAP (73.6±12.6 vs. 78.5±13.4mmHg; p=0.03) were significantly lower in the same group. No difference between AUC of these parameters to predict the use of sulprostone was found (AUC between 0.59 and 0.61). No significant difference was found for the HR between the two groups. The diagnostic value of SI appeared to be low and similar to other haemodynamic parameters in predicting the use of sulprostone.

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