NST shows fetal distress and sinusoidal heart rate pattern

NST shows fetal distress and sinusoidal heart rate pattern

If the non-stress test (NST) shows fetal distress and a sinusoidal heart rate pattern, this is a concerning finding that requires immediate evaluation and management.

A sinusoidal heart rate pattern is a highly abnormal fetal heart rate pattern that appears as a regular, smooth, and undulating waveform with a frequency of 3-5 cycles per minute. It can be a sign of severe fetal anemia, fetal hypoxia, or fetal infection. The presence of a sinusoidal pattern on an NST is associated with a high risk of fetal morbidity and mortality, and immediate action is necessary to prevent adverse outcomes.

Management of fetal distress with a sinusoidal pattern may involve immediate delivery by cesarean section, depending on the severity of the pattern, the gestational age of the fetus, and the presence of other risk factors or complications. In some cases, fetal blood sampling or ultrasound may be necessary to further evaluate the fetal condition and guide management decisions.

It is important to note that a sinusoidal heart rate pattern is a rare finding, and other more common causes of fetal distress, such as placental insufficiency or cord compression, should be ruled out before making a diagnosis of sinusoidal pattern. Regular monitoring of fetal heart rate and close communication with the healthcare provider can help to ensure prompt recognition and management of fetal distress and optimize outcomes for mother and baby.