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Dig Liver Dis. 2014 Jul;46(7):639-44. doi: 10.1016/j.dld.2014.02.017. Epub 2014 Apr 3.

Efficacy of pancreatic stenting prior to extracorporeal shock wave lithotripsy for pancreatic stones.

Author information

1
Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
2
Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan. Electronic address: inaito@med.nagoya-cu.ac.jp.
3
Department of Community-based Medical Education, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
4
Department of Gastroenterology, Gifu Prefectural Tajimi Hospital, Tajimi, Japan.

Abstract

BACKGROUND:

Extracorporeal shock wave lithotripsy is the first-line therapy for large pancreatic duct stones; however, it requires a long duration of therapy.

AIMS:

To clarify the effect of pancreatic stenting prior to extracorporeal shock wave lithotripsy on shortening the duration of therapy and reducing complications.

METHODS:

We retrospectively compared 45 patients who underwent pancreatic stenting prior to extracorporeal shock wave lithotripsy (stenting group) and 35 patients who did not undergo stenting prior to extracorporeal shock wave lithotripsy (non-stenting group) with regard to the cumulative number of shock waves required for stone fragmentation (stone size <3mm) and the rate of complications.

RESULTS:

The stenting group was associated with a significantly lower cumulative number of shock waves in univariate analysis (log-rank, p=0.046) and multivariate Cox proportional hazard analysis (hazard ratio, 1.88; 95% confidence interval, 1.13-3.14; p=0.015) than the non-stenting group. The frequency of pancreatitis tends to be lower in the stenting group than the non-stenting group (2.2% [1/45] vs 11.4% [4/35]; p=0.162).

CONCLUSIONS:

Pancreatic stenting prior to extracorporeal shock wave lithotripsy reduced the cumulative number of shock waves required for pancreatic stone fragmentation, and could be useful to shorten the duration of therapy.

KEYWORDS:

Extracorporeal shock wave lithotripsy; Pancreatic stenting; Pancreatic stone

PMID:
24704292
DOI:
10.1016/j.dld.2014.02.017
[Indexed for MEDLINE]
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