Expectant management in HELLP syndrome: predictive factors of disease evolution

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Cadoret, Florence | Guerby, Paul | Cavaignac-Vitalis, Marie | Vayssiere, Christophe | Parant, Olivier | Vidal, Fabien

Edité par CCSD ; Taylor & Francis -

International audience. Objective: HELLP syndrome is a rare and severe pregnancy complication which exposes to severe maternal and fetal morbidity. Management of HELLP syndrome occurring before 34 weeks of gestation (WG) is still controversial but conservative management may be beneficial in patients with stable HELLP syndrome. The aim of the study was thus to identify which maternal and fetal prognostic factors could be predictive of HELLP syndrome evolution.Methods: From 2003 to 2016, all patients with HELLP syndrome occurring between 26 and 34 WG were retrospectively enrolled. Study population was stratified according to obstetrical management. Patients in whom delivery was initiated within 48 h following diagnosis constituted the active management group. In the expectant management group, pregnancy was prolonged until maternal or fetal follow up indicated delivery.Results: Ninety-nine patients were included in our study. Among them, 61 were managed expectantly. At baseline, the active management group was more likely to suffer from persistent hyperreflexia (p < .001), headache (p = .006) and confusion (p < .01). Moreover, this group was associated with worst biological and ultrasound features, namely decreased prothrombin ratio (p = .04), increased creatinine value (p = .01), and increased rates of pathological umbilical cord flow (p = .05) and abnormal ductus venosus flow (p = .007). After logistic regression, baseline significant prognostic factors were hyperreflexia (RR = 12.35; CI = 3.8 - 39.9), creatinine level (RR = 1.03; CI = 1002 - 1058) and abnormal umbilical cord flow (RR = 3.95; CI = 1.05 - 14.81). Last, expectant management leads to longer gestation time after diagnosis with an average value of 7.75 days without increasing maternal nor fetal mortality.Conclusion: While expectant management in HELLP syndrome might be beneficial through its reduction of prematurity, it cannot be conducted in all patients. Identification of baseline parameters predictive of disease evolution is thus of tremendous importance to define which obstetrical approach should be prioritized.

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