@article{oai:dmu.repo.nii.ac.jp:00005122,
 author = {Kawata, Yosuke and Yamamiya, Akira and Tominaga, Keiichi and Tanaka, Takanao and Kanazawa, Mimari and Tetsuka, Yugo and Nemoto, Rena and Maki, Ryuichi and Abe, Keiichiro and Kanamori, Akira and Iiijima, Makoto and Goda, Kenichi and Irisawa, Atsushi},
 issue = {1},
 journal = {Dokkyo Medical Journal},
 month = {Mar},
 note = {Polyethylene glycol is a safe agent for bowel cleansing in preparation for colonoscopy. However, it can cause considerable electrolyte abnormalities. We herein report two cases of hyponatremia because of bowel preparation using polyethylene glycol. Case 1: The patient, a man in his 70s, was admitted to our hospital for an endoscopic mucosal resection of an adenoma of the large intestine. After the preparation, the patient developed consciousness disturbance. His serum Na level was 122 mEq/L, indicating a marked degree of electrolyte abnormality. Syndrome of inappropriate antidiuretic hormone secretion (SIADH) was inferred as the cause of hyponatremia. Case 2: A patient in his 70s, based on a positive fecal occult blood test result, was scheduled to undergo colonoscopy. A blood test on the day of the colonoscopy showed his serum sodium level as 107 mEq/L. The patient was found to have chronic hyponatremia, which prevented development of clinical symptoms. However, because of preservation of ADH secretion despite the hyponatremia, a diagnosis of SIADH was made. These cases suggest that clinicians should be aware of the risk of hyponatremia during bowel preparation for colonoscopy.},
 pages = {76--80},
 title = {Two Cases of Hyponatremia Following Bowel Preparation for Colonoscopy},
 volume = {1},
 year = {2022}
}