Continuous wavelet analysis of postprandial <scp>EGG</scp>s suggests sustained gastric slow waves may be slow to develop in infants with colic

Reynolds, Gordon; Lentle, Roger G.; Janssen, Patrick; Hulls, Corrin

doi:10.1111/nmo.12948

Cited by 5 publications

(2 citation statements)

References 38 publications

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“…A total of 16 clinical disorders were investigated in the retrieved articles, constituting functional dyspepsia (FD) (25,26,31,34–43), gastro-esophageal reflux disease (GERD) (28–30,32,33,39), idiopathic nausea (44,45), type 1 diabetes mellitus (T1DM) (15,24,46,47), eating disorders (including anorexia nervosa) (38), structural GI disorders (infantile hypertrophic pyloric stenosis, esophagitis, and gastritis/duodenitis) (29,48,49), muscular dystrophies (14), multisystem disorders (cystic fibrosis and Noonan syndrome) (16,50,51), infant colic (52), cow's milk protein allergy (CMPA) (32), chronic intestinal pseudo-obstruction (CIPO) (27), and malignancy (53). The diagnostic criteria for disorders and exclusion criteria of each included article are outlined in Supplemental Digital Content 6, http://links.lww.com/MPG/C315 .…”

Section: Resultsmentioning

confidence: 99%

Electrogastrography Abnormalities in Pediatric Gastroduodenal Disorders

Bhat

Varghese²,

Carson³

et al. 2021

J. pediatr. gastroenterol. nutr.

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Electrogastrography (EGG) is a non-invasive method of measuring gastric electrophysiology. Abnormal gastric electrophysiology is thought to contribute to disease pathophysiology in patients with gastroduodenal symptoms but this has not been comprehensively quantified in pediatric populations. This study aimed to quantify the abnormalities in gastric electrophysiology on EGG in neonatal and pediatric patients. Databases were systematically searched for articles utilizing EGG in neonatal and pediatric patients ( 18 years). Primary outcomes were prevalence of abnormality, percentage of time in normal rhythm, and power ratio. Secondary outcomes were correlations between patient symptoms and abnormal gastric electrophysiology on EGG. A total of 33 articles (1444 participants) were included. EGG methodologies were variable. Pooled prevalence of abnormalities on EGG ranged from 61% to 86% in patients with functional dyspepsia (FD), gastro-esophageal reflux disease (GERD), and type 1 diabetes mellitus (T1DM). FD patients averaged 20.8% (P ¼ 0.011) less preprandial and 21.6% (P ¼ 0.031) less postprandial time in normogastria compared with controls. Electrophysiological abnormalities were inconsistent in GERD. T1DM patients averaged 46.2% (P ¼ 0.0003) less preprandial and similar (P ¼ 0.32) postprandial time in normogastria compared with controls, and had a lower power ratio (SMD À2.20, 95% confidence interval [CI]: À4.25 to À0.15; P ¼ 0.036). Symptom correlations with gastric electrophysiology were inconsistently reported. Abnormalities in gastric electrophysiology were identifiable across a range of pediatric patients with gastroduodenal symptoms on meta-analysis. However, techniques have been inconsistent, and standardized and more reliable EGG methods are desirable to further define these findings and their potential utility in clinical practice.

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Section: Resultsmentioning

confidence: 99%

Electrogastrography Abnormalities in Pediatric Gastroduodenal Disorders

Bhat

Varghese²,

Carson³

et al. 2021

J. pediatr. gastroenterol. nutr.

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“…Because the EGG measurement is obtained from preterm babies longitudinally, the signal is expected to be highly non-stationary, and thus CWT is a more appropriate means used for time-frequency analysis. In the field of EGG [37][38][39][40][41][42][43][44] this is the first research report to utilize and implement CWT for determination of percentage time of non-stationary EGG rhythms spent in different gastric rhythm frequencies across three sub-feeding periods.…”

Section: Discussionmentioning

confidence: 99%

Frequency-specific electrogastrography as a non-invasive tool to measure gastrointestinal maturity in preterm infants

Chaudhari

Wang

Roblyer

et al. 2022

Sci Rep

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Enteral feeding is challenging in preterm infants because of gastrointestinal (GI) immaturity. Electrogastrography (EGG) is a non-invasive technology that measures gastric myoelectrical activity and can be utilized to measure changes that occur with maturation at different gestational ages (GA). Three gastric rhythms (GR) exist between 0.5–9 cycles per minute (cpm), namely, bradygastria (0.5 ≤ GR < 2 cpm), normogastria (2 ≤ GR < 4 cpm), and tachygastria (4 ≤ GR < 9 cpm). We aimed to characterize EGG-derived parameters for different GA by quantifying (1) power spectral density (PSD) and its spectral means at three GR bands (i.e., mPSDGR) and (2) the percent (%) time spent in each band. Data analyzed was from a longitudinal cohort of preterm infants (n = 51) born at early, mid, and term GA of < 29, 29–33, and ≥ 37 weeks, respectively. Weekly EGG monitoring was performed until 40 weeks’ postmenstrual age or discharge. Pre-, during, and post-feed data were analyzed for mPSDGR at each GR band. Also, % bradygastria, % normogastria, and % tachygastria were calculated by continuous wavelet transform analysis. Results showed (1) mPSD values in normogastria and tachygastria during feeding increased with advancing GA, and (2) % normogastria increased with advancing GA regardless of GR ranges, suggesting EGG may measure GI maturity in preterm infants.

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