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Gallbladder hypocontractility in infantile colic
L Lehtonen1, E Svedström, H Korvenranta
1Department of Pediatrics, University Hospital, Turku, Finland.
Insights
Infants with colic exhibit reduced gallbladder contractility, suggesting abnormal biliary tract function. This finding highlights a potential physiological basis for infantile colic symptoms.
Area of Science:
- Pediatrics
- Gastroenterology
- Biliary Physiology
Background:
- Infantile colic is a common condition in newborns, often associated with gastrointestinal discomfort.
- The underlying physiological mechanisms of infantile colic remain incompletely understood.
- Gallbladder function, specifically its contractility, has not been extensively studied in colicky infants.
Purpose of the Study:
- To investigate gallbladder contractility in infants experiencing colic.
- To compare gallbladder function between colicky infants and healthy controls.
- To explore potential correlations between gallbladder contractility and colic severity or timing.
Main Methods:
- Gallbladder size was measured in 58 colicky infants and 57 controls before and 1 hour after feeding.
- The contraction index of the gallbladder was calculated to quantify its contractile function.
- Infants were assessed for colic symptoms, and examination timing (morning vs. evening) was recorded.
Main Results:
- Colicky infants demonstrated significantly decreased gallbladder contractility compared to controls (mean contraction index 56% vs. 67%).
- No differences in fasting gallbladder size were observed between the groups.
- Reduced postprandial gallbladder contraction was noted in colicky infants examined in the evening and those actively exhibiting colicky cry.
Conclusions:
- Infants with colic exhibit gallbladder hypocontractility, indicating impaired biliary tract physiology.
- Abnormal gallbladder function may contribute to the pathophysiology of infantile colic.
- Further research into biliary tract function could offer new insights into managing infantile colic.
Abstract:
We evaluated gallbladder contractility in 58 colicky infants and 57 age-matched controls. Gallbladder size was measured before and 1 h after feeding and the contraction index of the gallbladder was calculated. The results showed decreased contractility of the gallbladder in colicky infants: mean contraction index in colicky infants was 56% (95% confidence interval, 49-63%) and in controls 67% (61-73%). No difference was found in the fasting size of the gallbladder. Postprandial contraction was decreased in colicky infants examined in the evening (n = 14) compared with those examined in the morning (n = 44). Decreased contraction of the gallbladder was found in those colicky infants who presented colicky cry compared with colicky infants without symptoms at the time of examination. No structural abnormalities were found in the general abdominal survey. In conclusion, infants with colic have hypocontractility of the gallbladder. This indicates abnormal biliary tract physiology in association with infantile colic.