Category: Clinical Stones: PCNL

MP26-3 - Is hydronephrosis a risk factor for bleeding in conventional percutaneous nephrolithotomy?

Sun, Sep 23
10:00 AM - 12:00 PM

Introduction & Objective :

There is conflict of evidence regarding whether hydronephrosis is a risk factor for bleeding in percutaneous nephrolithotomy (PNL). Moreover, among the stone complexity scoring system used for PNL (Guy’s stone score, the S.T.O.N.E. nephrometry and the CROES nomogram), only the S.T.O.N.E. nephrometry score incorporates hydronephrosis as a risk factor. Therefore, this study aimed to compare perioperative outcomes according to the presence or absence of hydronephrosis in percutaneous nephrolithotomy (PCNL) patients and to investigate whether hydronephrosis is a risk factor for blood transfusion rate.


Methods :

281 patients were divided according to the absence (group I) or presence (group II) of hydronephrosis. Perioperative outcomes were compared between the two groups. A multivariable regression analysis was performed to investigate whether hydronephrosis was a risk factor for blood transfusion rate. P values < 0.05 were considered significant.


Results :

Patients without hydronephrosis showed significantly longer operation time and admission period, lower stone-free rate and higher blood transfusion rate compared to patients with hydronephrosis (p < 0.05, p = 0.002, p = 0.011, and p < 0.05, respectively). Multivariable regression analysis showed that hydronephrosis was a significant risk factor for blood transfusion (p = 0.008).


Conclusions :

Absence of hydronephrosis was a significant risk factor for blood transfusion in PCNL.

Hee Youn Kim

Assistant Professor
St. Vincent's Hospital
Suwon-si, Kyonggi-do, Republic of Korea

Hyun-Sop Choe

Associate Professor
The Catholic University of Korea
Suwon-si, Kyonggi-do, Republic of Korea

Dong Sup Lee

Associate Professor
St. Vincent's Hospital
Suwon-si, Kyonggi-do, Republic of Korea

Je Mo Yoo

Clinical Fellow
St. Vincent's Hospital
Suwon-si, Kyonggi-do, Republic of Korea

Joon Ho Lee

Clinical Fellow
St. Vincent's Hospital
Suwon-si, Kyonggi-do, Republic of Korea

Seung-Ju Lee

Professor
St. Vincent's Hospital
Suwon-si, Kyonggi-do, Republic of Korea