Patients’ Characteristics and Factors Influencing Success Rate of ESWL in Rumah Sakit Umum Daerah Kardinah, Tegal
Abstract: To evaluate which
factors influencing success rate of extracorporeal shock wave lithotripsy
(ESWL) in Kardinah Hospital Tegal. Material & methods: This was a
retrospective study from secondary database of patients diagnosed with ureter
or kidney stone whom underwent ESWL procedure in RSUD Kardinah Tegal from April
2012 to November 2015. Multivariate analysis and Chi-square analysis from SPSS
ver. 19 were used to evaluate all the factors related to success rate of ESWL.
Results: There were 314 patients included in this study with 59.5% of them were
male patients. The average age of patients was 50 ± 5.5 years old. In 256 cases
of kidney stones, there were 69 (26.9%) cases with size <10mm, 160 (62.5%)
cases with a size of 10-20mm, and with a size >20mm by 27 (10.5%) cases. For
ureteral stones, there were 46 (79.3%) cases with size <10mm, 11 (18.9%)
cases with a size of 10-20mm, and 1 (1.7%) case with size >20mm. In general
there were 238 (75.7%) of patients received no additional ESWL procedure while
61 (19.4%) patients underwent 2nd ESWL procedure, 33 (10.5%) patients underwent
3rd ESWL procedure, and 11 (3.5%) patients underwent more than 4 ESWL
procedures. Kidney stones with a size <10mm, ureteral stones with size
<10mm got, and location of the stone had p value of p=0.0015, p=0.001, and
p=0.031 respectively. Other factors such as gender, age, stone opacity, and the
number of shock given did not affect the success of ESWL. Type of lithotripter
were not related to SFR in patient with kidney stone but was significantly
related in ureter stone with p=0.078 and p=0.04 respectively. Conclusion: Most
of patients reached stone free condition after the first ESWL procedure.
Factors that influence the success of ESWL were the stone size and stone
location. Kidney stone size <10mm and ureter stone <10mm had the highest
SFR. Types of lithotripter were not related to SFRs in patients with kidney
stone but were significantly related in ureteral stone with Medispec EM1000
electromagnetic and Huikang HK-V electromagnetic had the highest SFRs.
Keywords: Extracorporeal shock
wave lithotripsy; Kardinah; factors; stone-free-rate
Author: Wahid Cipta, Zulfikar
Ali
Journal Code: jpkedokterangg170013
