HUI-TENG CHENGYen-Ting LaiTsai, Kuei-ChinKuei-ChinTsai2023-03-032023-03-032012-100735-6757https://scholars.lib.ntu.edu.tw/handle/123456789/628927We documented a hyponatremic patient who developed imminent cardiac tamponade upon oral salt supplement. A 72-year-old diabetic woman had hemorrhagic stroke; pericardial effusion; and chronic kidney disease, stage IV. She developed hyponatremia (serum sodium level, 125 mmol/L), compatible with the syndrome of inappropriate antidiuretic hormone, and received oral salt supplement 9 g/d for 4 days. Shortness of breathing and increasing heart rate ensued, and the echocardiography found accumulation of pericardial effusion with signs of impending cardiac tamponade. Pig-tail drainage through pericardiocentesis was done, and the vital signs were stabilized. We found the production of pericardial effusion increased from 100 to 220 mL/d after oral salt supplement at 3 g/d was reassumed. We discuss the relationship between serum sodium levels, the dose of salt supplement and the accumulation of pericardial effusion.enjournal article10.1016/j.ajem.2011.07.025220301762-s2.0-84869468076WOS:000309813900060https://scholars.lib.ntu.edu.tw/handle/123456789/613353