BACKGROUND: Screening colonoscopy exposes healthy patients to the risk of serious adverse events associated with bowel preparation. Randomized controlled trials are not an effective method for evaluating this risk. AIM: To search published literature in order to characterize the risk of adverse events associated with oral polyethylene glycol (PEG) or sodium phosphate (NaP). METHODS: A systematic review identified case reports of any serious events associated with PEG or NaP. Reports to the Food and Drug Administration (FDA) were also examined. RESULTS: Fifty-eight publications of significant events in 109 patients using NaP and 22 patients using PEG were identified. As the total number of prescriptions issued is unknown, rates for the two agents cannot be directly compared. Most commonly reported were electrolyte disturbances, renal failure and colonic ulceration for NaP and Mallory-Weiss tear, electrolyte disturbances and allergic reactions for PEG between January 2006 and December 2007; there were 171 cases of renal failure reported to the FDA following use of NaP and 10 following PEG. CONCLUSIONS: Adverse events following bowel preparation are uncommon, but potentially serious. Given that many of these patients are healthy individuals undergoing screening, the benefit/risk ratio must be carefully considered when deciding which preparation to prescribe in individual patients.
BACKGROUND: Screening colonoscopy exposes healthy patients to the risk of serious adverse events associated with bowel preparation. Randomized controlled trials are not an effective method for evaluating this risk. AIM: To search published literature in order to characterize the risk of adverse events associated with oral polyethylene glycol (PEG) or sodium phosphate (NaP). METHODS: A systematic review identified case reports of any serious events associated with PEG or NaP. Reports to the Food and Drug Administration (FDA) were also examined. RESULTS: Fifty-eight publications of significant events in 109 patients using NaP and 22 patients using PEG were identified. As the total number of prescriptions issued is unknown, rates for the two agents cannot be directly compared. Most commonly reported were electrolyte disturbances, renal failure and colonic ulceration for NaP and Mallory-Weiss tear, electrolyte disturbances and allergic reactions for PEG between January 2006 and December 2007; there were 171 cases of renal failure reported to the FDA following use of NaP and 10 following PEG. CONCLUSIONS: Adverse events following bowel preparation are uncommon, but potentially serious. Given that many of these patients are healthy individuals undergoing screening, the benefit/risk ratio must be carefully considered when deciding which preparation to prescribe in individual patients.
Authors: Kyong Joo Lee; Hong Jun Park; Hyun-Soo Kim; Kwang Ho Baik; Yeon Soo Kim; Sung Chul Park; Hyun Il Seo Journal: World J Gastroenterol Date: 2015-03-14 Impact factor: 5.742
Authors: Yoon Suk Jung; Chang Kyun Lee; Hyo Jong Kim; Chang Soo Eun; Dong Soo Han; Dong Il Park Journal: World J Gastroenterol Date: 2014-11-14 Impact factor: 5.742