World journal of radiology · 2025
Magnetic resonance defecography assessment of obstructed defecation syndrome in patients with chronic constipation in a tertiary care hospital.
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Or-Rashid Mohammad Haroon, Sultana Anjuman, Khanduker Nabila, Ony Tarik Alam, Hossain Md Mosharraf, Rahman Junaidur, Chowdhury Mahmud Zaman, Ahmed Wasih Uddin, Uddin Md Nashir, Uzzaman Mohammad Sohel-
Аннотация
BACKGROUND: Obstructed defecation syndrome (ODS) is a subtype of constipation that is considered one of the major pelvic floor dysfunctions affecting the aging population, particularly women over 50 seeking medical care. The condition is characterized by the urge to defecate but an impaired ability to expel the fecal bolus. ODS is associated with various anorectal abnormalities, which are not always apparent during a standard physical examination, requiring specialized imaging techniques for proper diagnosis.
AIM: To study the distribution of causes of ODS in patients with chronic constipation by magnetic resonance defecography (MRD).
METHODS: This observational study evaluated the causes of ODS in 57 patients with chronic constipation who presented to Bangabandhu Sheikh Mujib Medical University between July 2020 and June 2021. After obtaining institutional review board approval and informed consent, patients underwent history taking, physical exams, and relevant investigations. ODS was diagnosed using Rome III criteria, with colonoscopy ruling out organic causes. Standard MRD was performed in different phases, and images were analyzed by expert radiologists and reported in a standardized format.
RESULTS: Pelvic floor descent and anorectal junction descent were the most frequent findings, each present in 94.7% of cases. Rectocele was observed in 78.9% of patients, while vaginal or uterine prolapse was seen in 59.4% of females. Less common abnormalities included paradoxical contraction (7%), and there were no cases of sigmoidocele. Functional measurements showed significant differences in pelvic floor dynamics between rest and defecation, particularly in the H-line, M-line, and descent of pelvic organs (P < 0.05).
CONCLUSION: Pelvic floor descent and anorectal descent were the most common findings in patients suffering from ODS, followed by rectocele. Younger females (< 30 years) were most affected.
AIM: To study the distribution of causes of ODS in patients with chronic constipation by magnetic resonance defecography (MRD).
METHODS: This observational study evaluated the causes of ODS in 57 patients with chronic constipation who presented to Bangabandhu Sheikh Mujib Medical University between July 2020 and June 2021. After obtaining institutional review board approval and informed consent, patients underwent history taking, physical exams, and relevant investigations. ODS was diagnosed using Rome III criteria, with colonoscopy ruling out organic causes. Standard MRD was performed in different phases, and images were analyzed by expert radiologists and reported in a standardized format.
RESULTS: Pelvic floor descent and anorectal junction descent were the most frequent findings, each present in 94.7% of cases. Rectocele was observed in 78.9% of patients, while vaginal or uterine prolapse was seen in 59.4% of females. Less common abnormalities included paradoxical contraction (7%), and there were no cases of sigmoidocele. Functional measurements showed significant differences in pelvic floor dynamics between rest and defecation, particularly in the H-line, M-line, and descent of pelvic organs (P < 0.05).
CONCLUSION: Pelvic floor descent and anorectal descent were the most common findings in patients suffering from ODS, followed by rectocele. Younger females (< 30 years) were most affected.