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Updated: Dec 28, 2025
Multimodality Diagnosis of Mesenteric Ischemia
Published on: July 21, 2023
Association of decreased variation of coefficient R-R interval with ischemic colitis and small bowel obstruction
Toshio Arai1, Hiroki Yamada1, Takeya Edagawa1
1Department of Gastroenterology, Hashimoto Municipal Hospital, Hashimoto, Wakayama, Japan.
Background:
The parasympathetic nervous system exerts and controls intestinal tone. Several studies have suggested that the coefficient of the R-R intervals (CVRR) is useful for evaluating the parasympathetic nervous system.
Objectives:
This study aimed to evaluate the relationship between gastrointestinal emergencies, specifically ischemic colitis (IC) and small bowel obstruction (SBO), and the autonomic nervous system.
Methods:
In this retrospective study, a total of 13 patients with IC or SBO aged ≧65 years were analyzed. CVRR was measured in patients with IC and SBO and controls.
Results:
CVRR averaged to 8.8% ± 2.5% in controls, 1.4% ± 0.4% in patients with IC, and 2.4% ± 1.0% in SBO groups (p < 0.001). CVRR was significantly lower in patients with IC and SBO than that in controls.
Conclusion:
The results of this study demonstrate the possibility that CVRR may serve as a clinical index for assessing the functioning of the parasympathetic nervous system in patients with IC or SBO.
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