Electromyographic and histological features of postpartum hypernatremic rhabdomyolysis
This 18-year-old lady was admitted 16 days after her first delivery with progressive quadriparesis and irrelevant speech that started 6 days after delivery. She had symmetrical severe quadriparesis with hypoactive tendon reflexes at admission. Tendon reflexes were noted to be brisk when the weakness improved. Serum CK was 11,288 units at admission and declined to 144 units/l on 10th day after symptom onset when EMG revealed fibrillations and positive sharp waves in limb and paraspinal muscles. Myotonic discharges were seen in biceps brachii and extensor digitorum brevis. Evaluation at one month after discharge was normal including serum sodium and CK levels.