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. 2015;24(4):355-61.
doi: 10.1159/000381548. Epub 2015 Apr 22.

Right-Sided Diverticulosis and Disparities from Left-Sided Diverticulosis in the Vietnamese Population Living in Boston, Mass., USA: A Retrospective Cohort Study

Raman Mehrzad  1 , Suprav Mishra, Garrey Faller, Babar Memon, Joseph Fiore
Affiliations

Right-Sided Diverticulosis and Disparities from Left-Sided Diverticulosis in the Vietnamese Population Living in Boston, Mass., USA: A Retrospective Cohort Study

Raman Mehrzad et al. Med Princ Pract. 2015.

Abstract

Objective: To report the prevalence, clinical differences and complications of right-sided diverticulosis (RD) and to investigate the potential disparities from left-sided diverticulosis (LD) in the Vietnamese population.

Subjects and methods: A retrospective cohort study was conducted using medical records of Vietnamese-born patients from 2000 to 2013 in a community teaching hospital in Boston, Mass., USA. By simple randomization, a randomized control group of 299 Caucasian patients was also selected from the same time frame [167 males (M) and 132 females (F)]. Colonoscopy reports were reviewed for demographics (age and gender), indication and anatomical location of the colonic diverticulosis (CD), concomitant colonic findings, symptoms, and endoscopic complications.

Results: A total of 207 patients were included in the Vietnamese cohort (mean age 61.6 ± 8.9 years). The mean age at first screening colonoscopy was 58.2 ± 7.2 years (114 F/92 M, 55.7/44.4%). Our study identified 104 (50.5%) patients with LD (57 M/47 F), 65 (31.1%) with RD (35 M/30 F) and 38 (18.4%) with both LD and RD (23 M/15 F); 133 (64%) were asymptomatic. A total of 21 (33%) patients with RD were symptomatic. The mean age of the control group was 61.6 ± 8.1 years. The average age at first screening colonoscopy was 52.8 ± 6.4 years. Of the 299 in the Caucasian group, 254 (84.9%) had LD (114 M/140 F), 9 (3.0%) had RD (2 M/7 F) and 36 (12%) had both LD and RD (16 M/20 F); 225 (75%) were asymptomatic and came in for screening colonoscopies. A total of 2 patients (22%) with RD were symptomatic.

Conclusion: RD was common in this Vietnamese population, and the prevalence was higher than in the Caucasian control group.

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Figures

Fig. 1
Fig. 1
Low-power image of a right-sided diverticulum. HE. It shows a diverticulum with outpouching of the mucosa and submucosa with an attenuated layer of muscle. There is minimal associated chronic inflammation.
Fig. 2
Fig. 2
Medium-power image of a right-sided diverticulum. HE. It shows the diverticulum with outpouching of the mucosa and submucosa with an attenuated layer of muscle.
Fig. 3
Fig. 3
Low-power image of a left-sided sigmoid diverticulum for comparison. HE. It shows a diverticulum with outpouching of the mucosa and submucosa with an attenuated layer of muscle. There is associated acute and chronic inflammation.
Fig. 4
Fig. 4
Medium-power image of a left-sided sigmoid diverticulum for comparison. HE. It shows a diverticulum with outpouching of the mucosa and submucosa with an attenuated layer of muscle.
See this image and copyright information in PMC

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