Ureteral Stent Insertion in the Management of Renal Colic during Pregnancy

다국어 초록 (Multilingual Abstract)

To determine an optimal invasive intervention for renal colic patients during pregnancyafter conservative treatments have been found to be unhelpful. Among the availableinvasive interventions, we investigated the reliability of a ureteral stent insertion,which is considered the least invasive intervention during pregnancy. Between June2006 and February 2015, a total of 826 pregnant patients came to the emergency roomor urology outpatient department, and 39 of these patients had renal colic. The meanpatient age was 30.49 years. In this retrospective cohort study, the charts of the patientswere reviewed to collect data that included age, symptoms, the lateralities and locationsof urolithiasis, trimester, pain following treatment and pregnancy complications. Based on ultrasonography diagnoses, 13 patients had urolithiasis, and 13 patients hadhydronephrosis without definite echogenicity of the ureteral calculi. Conservativetreatments were successful in 25 patients. Among these treatments, antibiotics wereused in 15 patients, and the remaining patients received only hydration and analgesicswithout antibiotics. Several urological interventions were required in 14 patients. Themost common intervention was ureteral stent insertion, which was performed in 13patients to treat hydronephrosis or urolithiasis. The patients’ pain was relieved followingthese interventions. Only one patient received percutaneous nephrostomy due topyonephrosis. No pregnancy complications were noted. Ureteral stent insertion is regardedas a reliable and stable first-line urological intervention for pregnant patientswith renal colic following conservative treatments. Ureteral stent insertion has beenfound to be equally effective and safe as percutaneous nephrostomy, which is associatedwith complications that include bleeding and dislocation, and the inconvenience of usingexternal drainage system.

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