Risk Factors and Clinical Features of Peripartum Cardiomyopathy in a Chinese Population

Abstract

Hui Huang,1– 3,* Qing Ye,1– 4,* Yulan Xu,1– 3,* Baoming Tao,1– 3 Junlan Liu,1– 3 Tian Xie,1– 3 Lingfeng Zha1– 3 1Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China; 2Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China; 3Hubei Provincial Engineering Research Center of Immunological Diagnosis and Therapy for Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China; 4School of Nursing, Wuhan University, Wuhan, People’s Republic of China*These authors contributed equally to this workCorrespondence: Tian Xie; Lingfeng Zha, Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, People’s Republic of China, Tel [phone], Email [email protected]; [email protected]: We investigated the risk factors and characteristic clinical features of peripartum cardiomyopathy (PPCM) to lay the groundwork for early identification, screening, diagnosis, and intervention in high-risk pregnant women.Patients and methods: A retrospective case-control study was conducted to analyze data from 44 patients with PPCM and 226 normal pregnant women from a Chinese population.Results: Significant differences were found between the groups in terms of various factors such as age, body mass index (BMI), heart rate, and medical history. Logistic regression models identified abnormal electrocardiography (OR=18.852), upper respiratory tract infection (OR=41.822), gestational hypertension (OR=18.188), and cesarean section (OR=8.394) as risk factors for PPCM. Common clinical features observed in patients with PPCM included cough, wheezing, and chest tightness (68.18%), left heart enlargement (56.82%) and valvular insufficiency (81.82%). Additionally, cardiotropic virus was detected in a subset of patients (43.18%) and NT-proBNP was elevated ≥ 400 pg/mL (81.82%).Conclusion: In the Chinese population, the presence of abnormal electrocardiograms during pregnancy, history of upper respiratory tract infection, gestational hypertension, and maternal choice of cesarean section suggest the possibility of PPCM development. Factors such as advanced age, family history of cardiovascular disease, gestational diabetes mellitus, eclampsia, anemia, and hypoproteinemia should be considered. Clinically, patients present with cough, wheezing, chest tightness, enlarged left heart, valvular insufficiency and NT-proBNP elevated ≥ 400 pg/mL. This study could serve as a valuable reference for medical practitioners for the early identification and screening of patients with PPCM.Keywords: peripartum cardiomyopathy, risk factors, clinical features, early identification

Keywords

• peripartum cardiomyopathy
• risk factors
• clinical features
• early identification