Abstract
Background Depression, as major depressive disorder (MDD) or as bipolar depression, is frequent among pregnant women (Evans et al., 2001) and an efficient treatment is fundamental. If left untreated, there are specific risks such as preterm delivery, low birth weight, and potentially death due to acute suicidality. Treatment of depression during pregnancy supposes a great challenge for pregnant women, their partner and for physicians involved. Despite psychopharmacotherapy and psychotherapy, electroconvulsive therapy (ECT) and other brain stimulation techniques such as repetitive transcranial magnetic stimulation (rTMS) or vagus nerve stimulation (VNS) are current available treatment strategies to treat depressive symptoms. ECT is recommended by the American Psychiatric Association Task Force on ECT as a safe and effective treatment of depression throughout pregnancy. However, ECT during pregnancy often involves concerns by both the patient and the physician due to unsolved questions regarding safety and tolerability as well as efficacy. Method In order to retrieve insights into the frequency of reports, safety and efficacy of ECT for the treatment of MDD and bipolar depression during pregnancy we performed a systematic review of the existing literature. All publications between 1942 and the 1th December 2012 in the Medline, Embase and Scopus databases, that deal with ECT in MDD and bipolar depression during pregnancy were considered. Results N=87 cases of ECT during pregnancy (MDD n =78; bipolar depression n =9) published in n =41 articles were detected. Of these 30 were case reports and 11 case series (with reported cases between n =2 and n =16). Furthermore, we evaluated the number of reported cases between the first report in 1942 and 2012 and divided the results in 4 time periods (1942–1959 n =46, 1960–1977 n =0, 1978–1995 n =14, and 1996–2012 n =18) in order to compare reported frequency. The results of our preliminary analysis suggest that ECT is efficacious and well tolerated in mother and offspring in the majority of analysed cases. In terms of safety, the comparison of the 4 time periods revealed that in the last analyzed time period a lower complication rate was observed. Most reported adverse effects were transient confusion, memory loss, headache and very rare premature contractions (mother) and fetal bradyarrhythmias. Further parameters (e.g. outcome of follow-up investigations, applied, narcotics, gestation age at the time of ECT, mean number of ECT sessions, detailed efficacy parameters as measured by psychometric scales, changes of the frequencies of reported ECTs during pregnancy) will be presented at the congress. Conclusions Considering the results of our systematic review, ECT seems feasible in pregnant patients with MDD or bipolar depression. Our data support ECT to be more safe in the last decades for mother and offspring; however, the registered reported frequency does not support an increasingly use of this method with regard to the mentioned indication.
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