Case Report
Percutaneous Holmium Laser Fulguration of Calyceal Diverticula
Table 1
Patient characteristics.
| Characteristics | Patient 1 | Patient 2 |
| Age and sex | 56 F | 64 F | ASA | 1 | 2 | BMI | 25 | 23 | Side | Left | Right | Location | Upper pole, anterior | Midpole, anterior | Stone size | 2 cm × 2.1 cm | 1.8 cm × 1.1 cm and 1.4 cm × 1.4 cm | Hounsfield units | 1034 | 1294 | Preop serum sodium | 138 mEq/L | 142 mEq/L | Postop serum sodium | 142 mEq/L | 142 mEq/L | OR time | 85 min | 95 min | Fluoroscopy time | 5 min | 4 : 45 min | Postop Hct | 0.36 | 0.43 | PACU stay | 5 hours | 3 hours | PACU narcotics (mg morphine equivalents) | 93 mg | 50 mg | Stone composition | 60% calcium phosphate |
100% calcium phosphate | 30% calcium oxalate monohydrate | 10% calcium oxalate dihydrate | Metabolic stone workup | pH 5.5, hypercalciuria, hyperuricosuria, hypernatriuria, and hypocitraturia | pH 7, hypercitraturia | Longterm prophylaxis | Low salt and purine diet; allopurinol, potassium citrate, and hydrochlorothiazide | trimethoprim/sulfamethoxazole |
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