Clinical Characteristics, Outcomes, and Risk Factors for Mortality in Pregnant/Puerperal Women with COVID-19 Admitted to ICU in Turkey: A Multicenter, Retrospective Study from a Middle-Income Country
Authors: Baykara Nur , Baykara Nur , Arslantaş Mustafa Kemal , Hancı Volkan , Akalın Halis , Demirkıran Oktay , Bozbay Suha , Ergül Dursun Fırat , Arslantaş Reyhan , Balcı Sibel , Alparslan Volkan , Topal Serra , Çalışkan Gülbahar , Yakışık Esra , İzdeş Seval , erdem Deniz , Erdem Ali Fuat , Cırdı Yaşar , Kuzgun Özge , Akdağ Gökhan , Bektaş Şerife , Yılmaz Mehmet , Akdağ Devrim , Akkoyun Didem Sözütek , Ata Adnan , Haftacı Engin , Peker Aynur , Esercan Alev , Öksüz Hafize , Gişi Gökçe , Metin Esma Nur , Çelik Jale Bengi , Çömez Mehmet Selim , Uyan Berna , Gündoğdu Oğuz , Kaygusuz Kenan , Düzgün Ahmet , Türkyılmaz Neşe , Çakırer Maaşallah , Arslan Ülkü , Yılmaz Murat , Yüksel Recep Civan , Kömürcü Özgür , Tekin Esra , Kahveci Ferda , Akesen Selcan , Delen Leman Acun , Aydoğan Burcu Başarık , Sarı Ali , Cinel İsmail , Gül Fethi , Şanlı Deniz , Saraçoğlu Tolga , Demirağ Kubilay , Uyar Mehmet , Çankayalı İlkin , Baydemir Canan , Doğan Yasemin , Güler Özlem , Kurt İbrahim , Yılmaz Pakize Özçiftçi , Uluç Kamuran , Karabacak Pakize Kırdemir,Pınar , Tuna Verda , Beştaş Azize , Demirel İsmail , Özer Ayşe Belin , Ayoğlu Hilal , Bollucuoğlu Keziban , Kasapoğlu Umut Sabri , Kılıç Özgür , Altay Nuray , Küçük Murat , Gökçe Recep , Atlı Zeynep , Dumanlı Güleren Yartaş , Yelken Birgül Büyükkıdan , Karakoç Ebru , Gökmen Necati , Serin Simay , Sungurtekin Hülya , Sevdi Mehmet Salih , Zinciroğlu Çiler , Balcı Canan , Çoruh Aliye Esmaoğlu , Öztürk Nilgün Kavrut , Arar Cavidan , Yıldırım İlker , Özdemir Abdullah 
Published: February 2024

Background Coronaviruses have been the cause of 3 major outbreaks during the last 2 decades. Information on coronavirus diseases in pregnant women is limited, and even less is known about seriously ill pregnant women. Data are also lacking regarding the real burden of coronavirus disease 2019 (COVID-19) infection in pregnant women from low/middle-income countries. The aim of this study was to determine the characteristics and clinical course of COVID-19 in pregnant/puerperal women admitted to ICUs in Turkey. Methods This was a national, multicenter, retrospective study. The study population comprised all SARS-CoV-2-infected pregnant/puerperal women admitted to participating ICUs between 1 March 2020 and 1 January 2022. Data regarding demographics, comorbidities, illness severity, therapies, extrapulmonary organ injuries, non-COVID-19 infections, and maternal and fetal/neonatal outcomes were recorded. LASSO logistic regression and multiple logistic regression analyses were used to identify predictive variables in terms of ICU mortality. Results A total of 597 patients (341 pregnant women, 255 puerperal women) from 59 ICUs in 44 hospitals were included and of these patients, 87.1% were unvaccinated. The primary reason for ICU admission was acute hypoxemic respiratory failure in 522 (87.4%), acute hypoxemic respiratory failure plus shock in 14 (2.3%), ischemic cerebrovascular accident (CVA) in 5 (0.8%), preeclampsia/eclampsia/HELLP syndrome in 6 (1.0%), and post-caesarean follow-up in 36 (6.0%). Nonsurvivors were sicker than survivors upon ICU admission, with higher APACHE II ( p < 0.001) and SOFA scores ( p < 0.001). A total of 181 (30.3%) women died and 280 (46.6%) had received invasive mechanical ventilation (IMV). Myocardial injury, the highest SOFA score during ICU stay, LDH levels on admission, the highest levels of AST during ICU stay, average daily dose of corticosteroids, IMV, prophylactic dose anticoagulation (compared with therapeutic dose anticoagulation), PaO2/FiO2 ratio <100, pulmonary embolism, and shock were identified as predictors of mortality. Rates of premature birth (46.4%), cesarean section (53.7%), fetal distress (15.3%), stillbirth (6.5%), and low birth weight (19.4%) were high. Rates of neonatal death (8%) and respiratory distress syndrome (21%) were also high among live-born infants. Conclusions Severe/critical COVID-19 infection during the pregnancy/puerperal period was associated with high maternal mortality and fetal/neonatal complication rates in Turkey.