Document Detail

Prolonged ambulatory oesophageal pH and pressure recording in healthy adults in Singapore.
MedLine Citation:
PMID:  9885689     Owner:  NLM     Status:  MEDLINE    
BACKGROUND/AIM OF STUDY: Data on prolonged ambulatory oesophageal pH and pressure monitoring in normal subjects in the East are limited. This study aimed to define the normal characteristics of ambulatory oesophageal pH and motility among healthy adults in Singapore. METHOD: Prolonged ambulatory oesophageal pH and pressure recording was performed on 10 healthy volunteers using a one-channel pH probe, a two channel pressure probe, a portable digital data recorder and a computerised data analysis system. The median (range) number of episodes with pH < 4 and the percentage of total time with pH < 4 were 24% (4%-56%) and 3.0% (0.2%-4.0%) respectively. They were greater in the upright than supine positions. RESULTS: The median percentages of peristaltic and simultaneous contractions were 65.8%-80.5% and 10.6%-12.7% respectively. The frequency, amplitude and duration of peristaltic contractions were greater during mealtimes than between meals in the upright position. CONCLUSION: This study provides the first data on prolonged ambulatory oesophageal pH and manometry in healthy Singaporean adults.
K Y Ho; J Y Kang
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Singapore medical journal     Volume:  39     ISSN:  0037-5675     ISO Abbreviation:  Singapore Med J     Publication Date:  1998 Jul 
Date Detail:
Created Date:  1999-02-17     Completed Date:  1999-02-17     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0404516     Medline TA:  Singapore Med J     Country:  SINGAPORE    
Other Details:
Languages:  eng     Pagination:  295-9     Citation Subset:  IM    
Department of Medicine, National University Hospital, Singapore.
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MeSH Terms
Analysis of Variance
Confidence Intervals
Esophagus / physiology*
Hydrogen-Ion Concentration
Monitoring, Ambulatory*
Peristalsis / physiology
Signal Processing, Computer-Assisted
Statistics, Nonparametric

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

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