O26.5

Clinical Causes: Lying flat on the back during pregnancy, especially in the second and third trimesters Pressure exerted by the gravid uterus on major blood vessels, notably the inferior vena cava Decreased blood flow back to the heart, leading to a drop in blood pressure Pre-existing low blood pressure or other cardiovascular issues

Key Symptoms: Dizziness or lightheadedness when lying on the back Fainting spells or feeling faint Nausea or cold sweat Rapid heartbeat or palpitations Visual disturbances such as blurred vision Weakness or fatigue In some cases, symptoms may improve upon changing position

Diagnosis Path: Identification of maternal hypotension syndrome involves a clinical assessment based on a woman's symptoms and history. Healthcare providers typically observe symptom occurrence in relation to position changes, particularly when lying supine. Blood pressure measurements may be taken in different positions to assess variations. Ultrasound may be used to evaluate fetal well-being and rule out other complications. A thorough medical history helps distinguish this condition from other pregnancy-related issues caused by blood pressure fluctuations.

Treatment Protocols: Management strategies focus on preventing symptoms and ensuring maternal and fetal safety. Common approaches include: - Advising pregnant women to avoid lying flat on their backs during the later stages of pregnancy. - Encouraging the use of side-lying positions, especially the left lateral position, which improves blood flow. - Using supportive devices such as pregnancy pillows to maintain comfortable and safe positions. - Monitoring blood pressure regularly, particularly when moving or changing positions. - Educating women about early signs of hypotension to prompt timely action. - In some cases, physical adjustments and lifestyle modifications may be recommended to reduce symptoms. Severe cases require medical evaluation and intervention to manage symptoms and minimize risks to mother and fetus.