Category: Clinical Stones: Outcomes

MP13-15 - Perioperative renal functional outcomes assessed by 99mTc-diethylenetriamine pentaacetic acid scintigraphy: 1 year follow-up after minimally invasive kidney stone surgery

Fri, Sep 21
2:00 PM - 4:00 PM

Introduction & Objective :

To evaluate the effect of mini-PCNL or RIRS on perioperative kidney function assessed by 99mTc-DTPA scintigraphy 1 year postoperatively and to identify significant predictors associated with deterioration or amelioration of renal function after surgery.


Methods :

Between 2012 and 2016, adult patients aged more than 19 years who undergone mini-PCNL or RIRS were included. Totally 70 patients were monitored by 99mTc-DTPA scintigraphy preoperatively, 3 months postoperatively and 12 months postoperatively. Patients with febrile urinary tract infection, bleeding tendency, pregnancy and anatomical deformities were excluded. Logistic regression analyses were conducted to estimate predictors of renal functional deterioration and improvement.


Results :

The stone-free rate was 81.4%. The difference between the preoperative separate renal function showed bigger than 10% in 57 patients (81.4%). Among these patients, most (40/57, 70.2%) were stable, ten patients of them (17.5%) were deteriorated and seven patients (12.3%) were improved regarding the relative renal function at postoperative 1 year. Functional changes of the abnormal group were not differerent according to the type of surgery. High preoperative serum creatinine level (p=0.060; OR= 10.822; 95% CI, 0.903-129.669) and history of previous stone management procedure (p=0.051; OR= 29.621; 95% CI, 1.141-768.721) were almost significant for predicting renal function deterioration.


Conclusions :

Both minimally invasive kidney surgery showed good efficacy and favorable safety for renal functional outcomes during long-term follow up. Careful attention should be given to patients with high baseline serum creatinine level and with history of previous stone management procedure.

Gwan Jang

3rd year resident
Seoul National University Hospital
Seoul, Seoul-t'ukpyolsi, Republic of Korea

SNUH department of urolog, 3rd degree resident. training 3 of 4.

Jae Hyun Jung

Fellow
Seoul National University Hospital
Seoul, Seoul-t'ukpyolsi, Republic of Korea

Jae Hyun Jung, M.D.
Clinical Fellow Department of Urology
Seoul National University Hospital
101 Daehak-ro, Jongno-gu, Seoul 03080, Korea
Tel: +82-2-2072-1968
Cell : +82-10-9159-5735
Fax: +82-2-742-4665
E-mail: genejh@hanmail.net

Sung Yong Cho

Department of Urology, Seoul National University, Seoul, South Korea
SMG-SNU Boramae Medical Center
Seoul, Seoul-t'ukpyolsi, Republic of Korea

Sangjun Yoo

SMG-SNU Boramae Medical Center
Seoul, Seoul-t'ukpyolsi, Republic of Korea

Juhyun Park

SMG-SNU Boramae Medical Center
Seoul, Seoul-t'ukpyolsi, Republic of Korea

Min Chul Cho

SMG-SNU Boramae Medical Center
Seoul, Seoul-t'ukpyolsi, Republic of Korea

Hyeon Jeong

SMG-SNU Boramae Medical Center
Seoul, Seoul-t'ukpyolsi, Republic of Korea

Hwancheol Son

SMG-SNU Boramae Medical Center
Seoul, Seoul-t'ukpyolsi, Republic of Korea

Juhun Park

Professor
SMG-SNU Boramae Medical Center
Seoul, Seoul-t'ukpyolsi, Republic of Korea

Assistant professor
SMG-SNU Boramae Medical Center
(SMG-SNU: Seoul Metropolitan Government-Seoul National University)
Department of Urology
20, Boramae-ro 5-gil, Dongjak-gu, Seoul 07061, Korea

Jeong Gu Lee

Department of Urology, Korea University Anam Hospital
Seoul, Seoul-t'ukpyolsi, Republic of Korea