Multichannel Electrogastrography (EGG) in Symptomatic Patients: A Single Center Study

Hrair P. Simonian, Kashyap Panganamamula, Jiande Chen, Robert S. Fisher, Henry P. Parkman

Research output: Contribution to journalArticle

Abstract

OBJECTIVES: To determine the value of multichannel versus conventional single-channel electrogastrography (EGG) and of an additional postprandial hour recording in symptomatic patients. METHODS: Eighteen normal subjects and 47 patients with upper GI symptoms underwent multichannel EGG with four cutaneous recording electrodes placed on the antral axis. Fasting EGG was recorded for 1 h, followed by meal ingestion, followed by two 1-h postprandial EGG recordings. Variables assessed: (1) dominant frequency (DF) and its power; (2) percent time in normal (2-4) cpm frequency; (3) average percent of slow wave coupling (% SWC). RESULTS: Normal values for single-channel EGG were: (1) DF from 2.5-3.3, 2.7-3.5, and 2.6-3.5 cpm in the fasting, first, and second postprandial hours; (2) percentage of time in 2-4 cpm: >50%, >65%, and >65% in the fasting, first, and second postprandial hours. Normal values for percent SWC using multichannel EGG were >50%, >55%, >55% in the fasting, first, and second postprandial hours. In the symptomatic patients, an abnormal 2-h single-channel EGG was obtained in 16 of 47 (34%) patients. Adding an additional 1 h of postprandial recording identified another 4 abnormal patients (20/47 = 43%). With multichannel EGG, abnormal results were obtained in 24 of 47 patients (51%) with the 2-h study. An additional 1 h of postprandial recording identified another 4 patients as abnormal (28/47 = 60%). CONCLUSIONS: Multichannel EGG recording improved the detection of abnormal gastric myoelectric activity in symptomatic patients. This study also demonstrates prolonging the postprandial recording to 2 h increases the diagnostic yield for both single-channel and multichannel EGG.

Original languageEnglish (US)
Pages (from-to)478-485
Number of pages8
JournalAmerican Journal of Gastroenterology
Volume99
Issue number3
DOIs
StatePublished - Mar 2004
Externally publishedYes

Fingerprint

Fasting
Reference Values
Meals
Stomach
Electrodes
Eating
Skin

ASJC Scopus subject areas

  • Gastroenterology

Cite this

Multichannel Electrogastrography (EGG) in Symptomatic Patients : A Single Center Study. / Simonian, Hrair P.; Panganamamula, Kashyap; Chen, Jiande; Fisher, Robert S.; Parkman, Henry P.

In: American Journal of Gastroenterology, Vol. 99, No. 3, 03.2004, p. 478-485.

Research output: Contribution to journalArticle

Simonian, Hrair P. ; Panganamamula, Kashyap ; Chen, Jiande ; Fisher, Robert S. ; Parkman, Henry P. / Multichannel Electrogastrography (EGG) in Symptomatic Patients : A Single Center Study. In: American Journal of Gastroenterology. 2004 ; Vol. 99, No. 3. pp. 478-485.
@article{7140e0a97b234a179a916e80fcc0da7c,
title = "Multichannel Electrogastrography (EGG) in Symptomatic Patients: A Single Center Study",
abstract = "OBJECTIVES: To determine the value of multichannel versus conventional single-channel electrogastrography (EGG) and of an additional postprandial hour recording in symptomatic patients. METHODS: Eighteen normal subjects and 47 patients with upper GI symptoms underwent multichannel EGG with four cutaneous recording electrodes placed on the antral axis. Fasting EGG was recorded for 1 h, followed by meal ingestion, followed by two 1-h postprandial EGG recordings. Variables assessed: (1) dominant frequency (DF) and its power; (2) percent time in normal (2-4) cpm frequency; (3) average percent of slow wave coupling ({\%} SWC). RESULTS: Normal values for single-channel EGG were: (1) DF from 2.5-3.3, 2.7-3.5, and 2.6-3.5 cpm in the fasting, first, and second postprandial hours; (2) percentage of time in 2-4 cpm: >50{\%}, >65{\%}, and >65{\%} in the fasting, first, and second postprandial hours. Normal values for percent SWC using multichannel EGG were >50{\%}, >55{\%}, >55{\%} in the fasting, first, and second postprandial hours. In the symptomatic patients, an abnormal 2-h single-channel EGG was obtained in 16 of 47 (34{\%}) patients. Adding an additional 1 h of postprandial recording identified another 4 abnormal patients (20/47 = 43{\%}). With multichannel EGG, abnormal results were obtained in 24 of 47 patients (51{\%}) with the 2-h study. An additional 1 h of postprandial recording identified another 4 patients as abnormal (28/47 = 60{\%}). CONCLUSIONS: Multichannel EGG recording improved the detection of abnormal gastric myoelectric activity in symptomatic patients. This study also demonstrates prolonging the postprandial recording to 2 h increases the diagnostic yield for both single-channel and multichannel EGG.",
author = "Simonian, {Hrair P.} and Kashyap Panganamamula and Jiande Chen and Fisher, {Robert S.} and Parkman, {Henry P.}",
year = "2004",
month = "3",
doi = "10.1111/j.1572-0241.2004.04103.x",
language = "English (US)",
volume = "99",
pages = "478--485",
journal = "American Journal of Gastroenterology",
issn = "0002-9270",
publisher = "Nature Publishing Group",
number = "3",

}

TY - JOUR

T1 - Multichannel Electrogastrography (EGG) in Symptomatic Patients

T2 - A Single Center Study

AU - Simonian, Hrair P.

AU - Panganamamula, Kashyap

AU - Chen, Jiande

AU - Fisher, Robert S.

AU - Parkman, Henry P.

PY - 2004/3

Y1 - 2004/3

N2 - OBJECTIVES: To determine the value of multichannel versus conventional single-channel electrogastrography (EGG) and of an additional postprandial hour recording in symptomatic patients. METHODS: Eighteen normal subjects and 47 patients with upper GI symptoms underwent multichannel EGG with four cutaneous recording electrodes placed on the antral axis. Fasting EGG was recorded for 1 h, followed by meal ingestion, followed by two 1-h postprandial EGG recordings. Variables assessed: (1) dominant frequency (DF) and its power; (2) percent time in normal (2-4) cpm frequency; (3) average percent of slow wave coupling (% SWC). RESULTS: Normal values for single-channel EGG were: (1) DF from 2.5-3.3, 2.7-3.5, and 2.6-3.5 cpm in the fasting, first, and second postprandial hours; (2) percentage of time in 2-4 cpm: >50%, >65%, and >65% in the fasting, first, and second postprandial hours. Normal values for percent SWC using multichannel EGG were >50%, >55%, >55% in the fasting, first, and second postprandial hours. In the symptomatic patients, an abnormal 2-h single-channel EGG was obtained in 16 of 47 (34%) patients. Adding an additional 1 h of postprandial recording identified another 4 abnormal patients (20/47 = 43%). With multichannel EGG, abnormal results were obtained in 24 of 47 patients (51%) with the 2-h study. An additional 1 h of postprandial recording identified another 4 patients as abnormal (28/47 = 60%). CONCLUSIONS: Multichannel EGG recording improved the detection of abnormal gastric myoelectric activity in symptomatic patients. This study also demonstrates prolonging the postprandial recording to 2 h increases the diagnostic yield for both single-channel and multichannel EGG.

AB - OBJECTIVES: To determine the value of multichannel versus conventional single-channel electrogastrography (EGG) and of an additional postprandial hour recording in symptomatic patients. METHODS: Eighteen normal subjects and 47 patients with upper GI symptoms underwent multichannel EGG with four cutaneous recording electrodes placed on the antral axis. Fasting EGG was recorded for 1 h, followed by meal ingestion, followed by two 1-h postprandial EGG recordings. Variables assessed: (1) dominant frequency (DF) and its power; (2) percent time in normal (2-4) cpm frequency; (3) average percent of slow wave coupling (% SWC). RESULTS: Normal values for single-channel EGG were: (1) DF from 2.5-3.3, 2.7-3.5, and 2.6-3.5 cpm in the fasting, first, and second postprandial hours; (2) percentage of time in 2-4 cpm: >50%, >65%, and >65% in the fasting, first, and second postprandial hours. Normal values for percent SWC using multichannel EGG were >50%, >55%, >55% in the fasting, first, and second postprandial hours. In the symptomatic patients, an abnormal 2-h single-channel EGG was obtained in 16 of 47 (34%) patients. Adding an additional 1 h of postprandial recording identified another 4 abnormal patients (20/47 = 43%). With multichannel EGG, abnormal results were obtained in 24 of 47 patients (51%) with the 2-h study. An additional 1 h of postprandial recording identified another 4 patients as abnormal (28/47 = 60%). CONCLUSIONS: Multichannel EGG recording improved the detection of abnormal gastric myoelectric activity in symptomatic patients. This study also demonstrates prolonging the postprandial recording to 2 h increases the diagnostic yield for both single-channel and multichannel EGG.

UR - http://www.scopus.com/inward/record.url?scp=1942440358&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1942440358&partnerID=8YFLogxK

U2 - 10.1111/j.1572-0241.2004.04103.x

DO - 10.1111/j.1572-0241.2004.04103.x

M3 - Article

C2 - 15056089

AN - SCOPUS:1942440358

VL - 99

SP - 478

EP - 485

JO - American Journal of Gastroenterology

JF - American Journal of Gastroenterology

SN - 0002-9270

IS - 3

ER -