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Extracorporeal shock wave lithotripsy for distal ureteral calculi: what a powerful machine can achieve.
J Urol. 2003 Mar; 169(3):878-80.JU

Abstract

PURPOSE

We assessed the efficacy of extracorporeal shock wave lithotripsy (ESWL, Dornier Medical Systems, Inc., Marietta, Georgia) for distal ureteral calculi with the HM3 (Dornier Medical Systems, Inc.) lithotriptor.

MATERIALS AND METHODS

A total of 585 consecutive patients with distal ureteral calculi were treated with ESWL using an unmodified HM3 lithotriptor. Of these patients 67 referred for treatment only for whom no followup was available were excluded from further analysis. The remaining 518 cases were followed until they were radiologically documented to be stone-free or considered treatment failures. Before ESWL additional procedures were performed in 144 patients, including stone push back, ureteral catheter or Double-J (Medical Engineering Corp., New York, New York) stent placement, percutaneous nephrostomy, ureteral endoscopic maneuvers or stone basket manipulation. A total of 374 patients needed no preliminary treatment before ESWL.

RESULTS

Of the 518 patients 469 (91%) were successfully treated with 1 ESWL session, while 49 (9%) needed 2 or 3. Manipulation after ESWL was performed in 22 cases, including stent placement, percutaneous nephrostomy, ureteral endoscopic stone removal and a stone basket procedure. On day 1 after ESWL 327 patients (63%) were stone-free, 158 (30%) had less than 5 mm. fragments and 33 (7%) had more than 5 mm. fragments. At 3 months the stone-free rate increased to 97%.

CONCLUSIONS

These data show that ESWL for distal ureteral calculi with the powerful unmodified HM3 lithotriptor has a high success rate with a low rate of minimally traumatic manipulations before and after intervention. Results in terms of the re-treatment and stone-free rates are superior to those of any other second or third generation lithotriptor and comparable to the results of the best ureteroscopic series.

Authors+Show Affiliations

Deparment of Urology, University of Bern, Switzerland.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

12576804

Citation

Hochreiter, Werner W., et al. "Extracorporeal Shock Wave Lithotripsy for Distal Ureteral Calculi: what a Powerful Machine Can Achieve." The Journal of Urology, vol. 169, no. 3, 2003, pp. 878-80.
Hochreiter WW, Danuser H, Perrig M, et al. Extracorporeal shock wave lithotripsy for distal ureteral calculi: what a powerful machine can achieve. J Urol. 2003;169(3):878-80.
Hochreiter, W. W., Danuser, H., Perrig, M., & Studer, U. E. (2003). Extracorporeal shock wave lithotripsy for distal ureteral calculi: what a powerful machine can achieve. The Journal of Urology, 169(3), 878-80.
Hochreiter WW, et al. Extracorporeal Shock Wave Lithotripsy for Distal Ureteral Calculi: what a Powerful Machine Can Achieve. J Urol. 2003;169(3):878-80. PubMed PMID: 12576804.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Extracorporeal shock wave lithotripsy for distal ureteral calculi: what a powerful machine can achieve. AU - Hochreiter,Werner W, AU - Danuser,Hansjörg, AU - Perrig,Martin, AU - Studer,Urs E, PY - 2003/2/11/pubmed PY - 2003/2/27/medline PY - 2003/2/11/entrez SP - 878 EP - 80 JF - The Journal of urology JO - J Urol VL - 169 IS - 3 N2 - PURPOSE: We assessed the efficacy of extracorporeal shock wave lithotripsy (ESWL, Dornier Medical Systems, Inc., Marietta, Georgia) for distal ureteral calculi with the HM3 (Dornier Medical Systems, Inc.) lithotriptor. MATERIALS AND METHODS: A total of 585 consecutive patients with distal ureteral calculi were treated with ESWL using an unmodified HM3 lithotriptor. Of these patients 67 referred for treatment only for whom no followup was available were excluded from further analysis. The remaining 518 cases were followed until they were radiologically documented to be stone-free or considered treatment failures. Before ESWL additional procedures were performed in 144 patients, including stone push back, ureteral catheter or Double-J (Medical Engineering Corp., New York, New York) stent placement, percutaneous nephrostomy, ureteral endoscopic maneuvers or stone basket manipulation. A total of 374 patients needed no preliminary treatment before ESWL. RESULTS: Of the 518 patients 469 (91%) were successfully treated with 1 ESWL session, while 49 (9%) needed 2 or 3. Manipulation after ESWL was performed in 22 cases, including stent placement, percutaneous nephrostomy, ureteral endoscopic stone removal and a stone basket procedure. On day 1 after ESWL 327 patients (63%) were stone-free, 158 (30%) had less than 5 mm. fragments and 33 (7%) had more than 5 mm. fragments. At 3 months the stone-free rate increased to 97%. CONCLUSIONS: These data show that ESWL for distal ureteral calculi with the powerful unmodified HM3 lithotriptor has a high success rate with a low rate of minimally traumatic manipulations before and after intervention. Results in terms of the re-treatment and stone-free rates are superior to those of any other second or third generation lithotriptor and comparable to the results of the best ureteroscopic series. SN - 0022-5347 UR - https://www.unboundmedicine.com/medline/citation/12576804/Extracorporeal_shock_wave_lithotripsy_for_distal_ureteral_calculi:_what_a_powerful_machine_can_achieve_ L2 - https://www.jurology.com/doi/10.1097/01.ju.0000051896.15091.0c?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -