title: Retrograde intrarenal surgery in the management of symptomatic calyceal diverticular stones: a single center experience.
abstract: To evaluate the outcome of RIRS in managing symptomatic calyceal diverticular as a minimally invasive option, we retrospectively reviewed the records of 43 patients who underwent RIRS from 2005 to 2014 for symptomatic calyceal diverticular stones. A month after the initial operation, the success rate was (81.4%, 35 patients) of which 21 (48.83%) patients were stone free and 14 (32.6%) patients had clinically insignificant residual fragments (CIRFs), and 90% patients were symptom free. Eight patients (16.6%) had significant residual fragments (>3 mm), five of them became completely stone free after the second procedure, other three patients were symptom free and underwent a routine follow-up. The final treatment success rate was 93.0%. The initial success rate in the lower calyx was significantly lower than the other calices (P = 0.040). In addition, the association between the stone size and the initial treatment success was significant (P = 0.036). There was no association between any of our other variables and the success rate. The mean first operative time was 60.95 ± 12.43 min (range 34-92). No major complication (Clavien III-V) occurred, although there were five minor complications (11.6%) (Clavien I-II). There were no admissions to intensive care or deaths in our series, the mean hospitalization time was 1.77 ± 0.80 days. The management of calyceal diverticular calculus with RIRS is highly effective and can be accomplished with low morbidity.
authors.affiliation: International Medical Center, Xiang Ya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China.|Department of Geriatric Medicine, Xiang Ya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China.
authors.forename: Xiong
authors.initials: X
authors.lastname: Chen
authors.affiliation: International Medical Center, Xiang Ya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China.
authors.forename: Dongjie
authors.initials: D
authors.lastname: Li
authors.affiliation: Department of Geriatric Medicine, Xiang Ya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China.
authors.forename: Yuanqing
authors.initials: Y
authors.lastname: Dai
authors.affiliation: Department of Geriatric Medicine, Xiang Ya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China.
authors.forename: Yao
authors.initials: Y
authors.lastname: Bai
authors.affiliation: Department of Geriatric Medicine, Xiang Ya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China.
authors.forename: Qizhan
authors.initials: Q
authors.lastname: Luo
authors.affiliation: International Medical Center, Xiang Ya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China.
authors.forename: Zhongwei
authors.initials: Z
authors.lastname: Zhao
authors.affiliation: Department of Urology, Xiang Ya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China.
authors.forename: Hequn
authors.initials: H
authors.lastname: Chen
authors.affiliation: International Medical Center, Xiang Ya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China. xiaobozxb@hotmail.com.|Department of Geriatric Medicine, Xiang Ya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China. xiaobozxb@hotmail.com.
authors.forename: Xiaobo
authors.initials: X
authors.lastname: Zhang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007669:Kidney Calculi / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D016896:Treatment Outcome; D013520:Urologic Surgical Procedures / Q000379:methods / Q000706:statistics & numerical data*; D055815:Young Adult
keywords: Calyceal diverticular stones; Retrograde intrarenal surgery (RIRS); Stone-free rate