Results
In our study, there were 89 and 72 patients in the PCNL and RIRS group, respec­tively. The median age of both groups was 67 years. The stone sizes were 22.2 ± 3.5 and 19.9 ± 7.1 in PCNL and RIRS group, respec­tively ( p = 0.082). Groups were similar in terms of patient and stone characteristics (age, gen­der, Body Mass Index (BMI), metabolic syndrome, preoperative glomerular filtration rate (GFR), SWL history, stone location and stone density). CCI scores were similar in both groups (p=0.098). The demographic data and preoperative characteristics are summarized in Table 1.
The length of hospital stay, fluoroscopy time and change in hgb were significantly higher in PCNL group (p < 0.001 for all three).
Stone free and complication rates were significantly higher in PCNL group (p = 0.021, p = 0.034). Also major complication rates were significantly higher in PCNL group (p=0.024). After a single procedure, the stone free rates were 89.9% and 77.8% in PCNL group and RIRS group, respectively (p = 0.021).
Regarding the subgroup rates of Clavien scoring system, there was no statistically significant difference in each subgroups between the groups. Details of omplication according to Clavien classification system are summarized in Table-3.
The correlation analysis of intraoperative and postoperative results with Charlson comorbidity index show that positive correlation between total complication with PCNL group and RIRS group, respectively (P < 0,001, P = 0.024). There was positive correlation between CCI and length of hospital stay with PCNL group and RIRS group ( p = 0.007, p < 0.001). Also there was positive correlation between Blood transfusion requirement with PCNL group ( p = 0.009). Details are shown in Table-4.
When we compared the complication rates between RIRS and PCNL according to CCI, we found that the rates of total and major complication in patients with CCI ≥2 was statistically significantly higher in the PCNL group, respectively (p=0,016, p= 0,029) (table-5).