Shortness of breath during sleep in late pregnancy
Shortness of breath during late pregnancy may be related to physiological factors, or could result from pathological conditions such as peripartum cardiomyopathy or pulmonary embolism. Early medical evaluation is essential to determine the underlying cause and initiate appropriate treatment. Specific analyses are as follows:
I. Physiological Factors
During late pregnancy, the growing uterus elevates the diaphragm and reduces thoracic cavity space, thereby affecting respiration. It is recommended to adopt a left lateral sleeping position and maintain regular prenatal check-ups. Usually, no special treatment is required.
II. Pathological Factors
1. Peripartum Cardiomyopathy
If heart function is impaired during late pregnancy, blood supply and oxygen delivery may be compromised, leading to symptoms such as shortness of breath and abnormal breathing patterns. Sudden episodes of dyspnea, especially during nighttime rest, may occur. Timely examinations including electrocardiogram (ECG) and echocardiography are necessary. In severe cases, cesarean delivery may be considered. Symptoms often improve after completion of pregnancy.
2. Pulmonary Embolism
During late pregnancy, blood tends to be hypercoagulable, and both blood volume and pelvic/abdominal pressure increase, raising the risk of pulmonary embolism. Symptoms include chest tightness, difficulty breathing, and increased heart rate. Immediate hospital evaluation is advised, including complete blood count and pulmonary CT scan. If necessary, consult a physician regarding anticoagulant therapy with medications such as low molecular weight heparin calcium injection, warfarin sodium tablets, or acenocoumarol tablets.
In addition, shortness of breath may also be associated with congenital heart disease. Regular prenatal examinations during late pregnancy are important to monitor both fetal and maternal health. Any abnormal symptoms should prompt immediate medical attention.