Section 73
Chapter 72,643

Temporary impairment of renal function in patients with rectal cancer treated with diverting ileostomy

Yang, K.; Zhao, J.; Chu, L.; Hu, M.; Zhou, W.; Li, Y.; Ye, X.; Huang, R.; Wang, H.; Wang, H.

Journal of Gastrointestinal Oncology 12(2): 620-629


ISSN/ISBN: 2078-6891
PMID: 34012654
Accession: 072642723

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Fluid and electrolyte disturbance, which impairs renal function, has been reported in patients with temporary ileostomy. However, the dynamic changes in serum electrolytes and renal function in rectal cancer patients with ileostomy have not been well described. In the present study, we aimed to evaluate alterations in serum electrolytes and renal function in rectal cancer patients undergoing ileostomy creation and closure. The levels of serum potassium, serum sodium, serum blood urea nitrogen, serum creatinine and estimated glomerular filtration rate (eGFR) were analyzed in 320 patients with rectal cancer including 156 patients with an ileostomy (the ileostomy group) and 164 patients without an ileostomy (the control group). After index surgery, the levels of serum potassium and serum creatinine in the ileostomy group were significantly higher than those in the control group (P<0.05). In contrast, the levels of serum sodium and the eGFR showed decreases in the ileostomy group compared to the control group after index surgery (P<0.05). At 3 months after ileostomy creation, the ileostomy group had a significantly increased rate of eGFR <60 mL/min/1.73 m2 compared to the control group (5.8% vs. 1.2%, P=0.032). In line with the results of univariate analysis, multivariable analysis identified ileostomy and diabetes as independent risk factors for a decreased eGFR (P=0.005 and P=0.022, respectively). Furthermore, a significantly rebound of eGFR was observed in patients after ileostomy closure (P=0.013). Ileostomy can cause temporary electrolyte disturbance and renal function impairment in patients with rectal cancer. Diabetes is an independent risk factor for renal function damage in patients with rectal cancer who receive a temporary ileostomy.

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