Normal 24-hour ambulatory proximal and distal gastroesophageal reflux parameters in Chinese.
Hong Kong Med J
; 8(3): 168-71, 2002 Jun.
Article
em En
| MEDLINE
| ID: mdl-12055360
ABSTRACT
OBJECTIVE:
To quantify normal proximal and distal oesophageal acid parameters in healthy Chinese.DESIGN:
Observational study.SETTING:
University teaching hospital, Hong Kong. SUBJECTS ANDMETHODS:
Twenty healthy adults who were not on medication and were free from gastrointestinal symptoms were recruited by advertisement. Ambulatory oesophageal acid (pH<4) exposure parameters were recorded at distal and proximal sites, 5 and 20 cm, respectively above the lower oesophageal sphincter.RESULTS:
The 95th percentile for reflux parameters assessed in the distal/proximal oesophagus were percent total time pH<4, 4.6/0.7%; percent upright time pH<4, 7.0/1.1%; percent supine time pH<4, 4.5/0.5%; number of reflux episodes, 73/12; number of reflux episodes with pH<4 for >5 minutes, 4/0; and the longest single acid exposure episode, 11.2/3.0 minutes.CONCLUSION:
Physiological gastroesophageal reflux occurs in healthy Chinese. These initial data provide a preliminary reference range that could be utilised by laboratories studying Chinese subjects.
Buscar no Google
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Estômago
/
Refluxo Gastroesofágico
/
Povo Asiático
/
Esôfago
Tipo de estudo:
Observational_studies
Limite:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Hong Kong Med J
Ano de publicação:
2002
Tipo de documento:
Article