The "mini-perc" technique: A less invasive alternative to percutaneous nephrolithotomy

Stephen V. Jackman, Steven G. Docimo, Jeffrey A Cadeddu, Jay T. Bishoff, Louis R. Kavoussi, Thomas W. Jarrett

Research output: Contribution to journalArticlepeer-review

289 Scopus citations


The disadvantages of standard percutaneous nephrolithotomy (PCNL) as compared with ureteroscopy or extracorporeal shock-wave lithotripsy include increased blood loss, greater pain, and longer hospital stay. A 13-Fr "mini-perc" technique using a ureteroscopy sheath for PCNL was developed in an attempt to address these drawbacks. Nine "mini-percs" have been performed in patients aged 40-73 years with stone burdens of <2 cm2. On average, patients had 1.4 stones with a cross-sectional area of 1.5 cm2. The mean total procedure time, estimated blood loss, and hematocrit decrease were 176 min, 83 ml, and 6.6%, respectively. On average, patients used 14 mg of parenteral morphine and stayed 1.7 days in the hospital. There was no procedure-related complication or transfusion. Eight of nine kidneys (89%) were stone-free on early follow-up at a mean of 3.8 weeks. As compared with standard PCNL, the "mini-perc" technique has similar early success rates in selected patients and may offer advantages with respect to hemorrhage, postoperative pain, and shortened hospital stays.

Original languageEnglish (US)
Pages (from-to)371-374
Number of pages4
JournalWorld Journal of Urology
Issue number6
StatePublished - Jan 1 1998

ASJC Scopus subject areas

  • Urology


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