Document Detail

The effect of sildenafil on oesophageal motor function in healthy subjects and patients with nutcracker oesophagus.
MedLine Citation:
PMID:  14651597     Owner:  NLM     Status:  MEDLINE    
Type 5 phosphodiesterase terminates the action of nitric oxide (NO) induced 3',5'-cyclic monophosphate (cGMP). Sildenafil inhibits this phosphodiesterase, increases cellular cGMP concentrations and enhances NO-induced smooth muscle relaxation. We investigated the effect of sildenafil on the oesophageal motor function of healthy subjects and patients with nutcracker oesophagus. Eight healthy volunteers and nine patients with nutcracker oesophagus participated in this study. The participants underwent oesophageal manometries on two separate days after either 20 mL of distilled water or 0.8 mg kg-1 sildenafil dissolved in 20 mL of water was infused into the stomach. Lower oesophageal sphincter (LOS) resting pressure, the duration of LOS relaxation and the amplitudes of oesophageal pressure waves were examined before, and 7.5, 15, 30 and 60 min after either placebo or sildenafil. In both healthy subjects and patients with nutcracker oesophagus, sildenafil decreased resting LOS pressure and the amplitude of peristaltic pressure waves at 3, 8 and 13 cm above LOS. Sildenafil also prolonged the duration of LOS relaxation. It had no effect on the velocity of peristalsis or the amplitude of peristaltic pressure waves 18 cm above LOS. Sildenafil may be considered as an alternative treatment in nutcracker oesophagus although there are several limitations to be overcome.
J I Lee; H Park; J H Kim; S I Lee; J L Conklin
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Neurogastroenterology and motility : the official journal of the European Gastrointestinal Motility Society     Volume:  15     ISSN:  1350-1925     ISO Abbreviation:  Neurogastroenterol. Motil.     Publication Date:  2003 Dec 
Date Detail:
Created Date:  2003-12-03     Completed Date:  2004-01-30     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9432572     Medline TA:  Neurogastroenterol Motil     Country:  England    
Other Details:
Languages:  eng     Pagination:  617-23     Citation Subset:  IM    
Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
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MeSH Terms
Analysis of Variance
Double-Blind Method
Esophageal Motility Disorders / drug therapy*,  physiopathology
Esophagus / drug effects*,  physiology
Manometry / methods
Middle Aged
Peristalsis / drug effects,  physiology
Piperazines / pharmacology*,  therapeutic use
Statistics, Nonparametric
Reg. No./Substance:
0/Piperazines; 0/Purines; 0/Sulfones; 139755-83-2/sildenafil

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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