Research Article
Clinical Factors to Predict Difficult Ureter during Ureteroscopic Lithotripsy
| | DU | Non-DU | |
| N | | 31 | 125 | | Age | | 55.1 (11.9) | 59.3 (13.3) | 0.107 | Sex | Female | 7 (22.5) | 22 (17.6) | 0.523 | BMI (kg/m2) | | 24.3 (3.9) | 24.8 (3.9) | 0.581 | Side | Left | 15 (48.3) | 68 (54.4) | 0.548 | Stone location | Renal alone | 15 (48.3) | 54 (44.0) | 0.603 | Major axis (mm) | | 8.8 (3.9) | 10.9 (4.5) | 0.018 | Maximum Hounsfield unit | | 1202.5 (372.0) | 1257.3 (355.3) | 0.445 | Hydronephrosis | Present | 15 (48.3) | 66 (52.8) | 0.660 | Traceability | Positive | 15 (48.3) | 104 (83.2) | <0.001 | History | Urolithiasis of the affected side | 6 (19.3) | 39 (31.2) | 0.193 | Abdominal surgery | 3 (9.6) | 22 (17.6) | 0.282 | Smoking habit | 16 (51.6) | 54 (43.2) | 0.399 | DM | 2 (6.4) | 29 (23.2) | 0.105 | HT | 12 (38.7) | 68 (54.4) | 0.118 | DL | 8 (25.8) | 29 (23.2) | 0.760 | Cardiovascular/cerebrovascular disease | 3 (9.6) | 8 (6.4) | 0.523 |
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Statistical significance. BMI, body metabolic index; DL, dyslipidemia; DM, diabetes mellitus; DU, difficult ureter; HT, hypertension. |