Document Detail

Development of a sleeve sensor for measurement of sphincter of Oddi motility.
MedLine Citation:
PMID:  11490379     Owner:  NLM     Status:  MEDLINE    
BACKGROUND AND STUDY AIMS: Unavoidable catheter movement during sphincter of Oddi (SO) manometry can produce considerable variations in the basal pressure, due to movement of the recording sidehole. The sleeve sensor is a perfused channel which records the highest pressure point along its length. The aim of the study was to develop and evaluate a prototype sleeve sensor for SO manometry. MATERIALS AND METHODS: Bench-testing was used to assess the dynamic performance of the sleeve and sidehole assemblies. Recordings were initially made with a standard triple-lumen catheter and then with a purpose-built manometric assembly which had a 15 mm long sleeve sensor. RESULTS: A perfusion rate of 0.04 ml/min gave the best balance between baseline pressure offset and rise rate. Recordings were attempted in nine patients and successfully achieved in four. The sleeve and sidehole recordings of the maximal basal pressure did not differ significantly (mean +/- SEM, 86.1 +/- 26.5 mmHg vs. 90.1 +/- 21.0 mmHg, P = 0.57, r = 0.998). CONCLUSIONS: Unnecessarily high perfusion rates are being used for SO manometry. The sleeve sensor has the potential to monitor SO pressure more reliably than the currently used perfused sidehole method and should enhance the safety of prolonged SO manometry.
A G Craig; T Omari; T Lingenfelser; A C Schloithe; G T Saccone; J Dent; J Toouli
Related Documents :
9179479 - Gastroesophageal sphincter: a model.
7125349 - Comparison of intraesophageal balloon pressure measurements with a nasogastric-esophage...
7666309 - Transposition of the antropylorus for anal incontinence--an experimental model in the pig.
7395839 - Effect of diazepam on the lower esophageal sphincter. a double-blind controlled study.
3102189 - Response of porcine lower esophageal sphincter to increasing intraabdominal pressure.
11591969 - Laparoscopic heller myotomy relieves dysphagia in patients with achalasia and low les p...
23875249 - Effect of beta-aescin extract from chinese buckeye seed on chronic venous insufficiency.
2885359 - Separate areas of rat medulla oblongata with populations of serotonin- and adrenaline-c...
16159819 - Right atrial and ventricular adaptation to chronic right ventricular pressure overload.
Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  Endoscopy     Volume:  33     ISSN:  0013-726X     ISO Abbreviation:  Endoscopy     Publication Date:  2001 Aug 
Date Detail:
Created Date:  2001-08-07     Completed Date:  2001-09-20     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0215166     Medline TA:  Endoscopy     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  651-7     Citation Subset:  IM    
Dept. of General and Digestive Surgery, Flinders Medical Centre, Bedford Park, South Australia, Australia 5042.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Equipment Design* / trends
Manometry / instrumentation*,  methods,  statistics & numerical data
Middle Aged
Movement / physiology*
Sphincter of Oddi / physiology*

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

Previous Document:  Diamond stents for palliation of malignant bile duct obstruction: a prospective multicenter evaluati...
Next Document:  Do we need the overtube for push-enteroscopy?