Most common causes of perinatal moality?
**Core Concept**
Perinatal mortality refers to the death of a fetus or newborn within the first week of life. It is a critical indicator of the quality of antenatal and intrapartum care. The most common causes of perinatal mortality are related to gestational age, maternal health, and obstetric complications.
**Why the Correct Answer is Right**
The leading causes of perinatal mortality are preterm birth, low birth weight, and congenital anomalies. Preterm birth is defined as birth before 37 weeks of gestation, and it is a major risk factor for perinatal mortality. Low birth weight, typically defined as less than 2,500 grams, is also a significant predictor of perinatal mortality. Congenital anomalies, such as heart defects and neural tube defects, are another common cause of perinatal mortality. These conditions often require prompt and specialized care, which may not always be available in resource-limited settings.
**Why Each Wrong Option is Incorrect**
**Option A:** Intrauterine infection is a significant cause of perinatal mortality, but it is not the most common cause. Intrauterine infection often presents with signs of maternal or fetal compromise, such as preterm labor or fetal distress.
**Option B:** Maternal medical conditions, such as hypertension and diabetes, are significant risk factors for perinatal mortality. However, they are not the most common causes of perinatal mortality.
**Option C:** Placental abruption and placenta previa are obstetric complications that can lead to perinatal mortality. However, they are relatively rare causes of perinatal mortality compared to preterm birth and low birth weight.
**Clinical Pearl / High-Yield Fact**
The World Health Organization (WHO) recommends that all births be attended by skilled birth attendants to reduce the risk of perinatal mortality. Additionally, the WHO recommends that all pregnant women receive antenatal care, including ultrasound scans and blood tests, to identify potential complications early.
**Correct Answer:** D. Preterm birth, low birth weight, and congenital anomalies.