Most Read Articles
Tristan Manalac, 5 days ago
Left ventricular assist devices (LVADs) can reverse pulmonary hypertension secondary to left heart disease regardless of baseline pulmonary vascular resistance, according to a new study.
11 May 2019
Acute kidney injury (AKI) commonly occurs within a year after cancer diagnosis in paediatric patients and is tied to long-term deteriorations in renal function, a recent study has found.
11 May 2019
Women practicing exclusive breastfeeding for 6 months achieve greater postpartum weight loss compared with those exclusively breastfeeding for a shorter duration, according to data from the MILK* study.
Pearl Toh, 6 days ago
The selective cap-dependent endonuclease inhibitor baloxavir marboxil (hereafter baloxavir) effectively improves influenza symptoms in adolescent patients and those at high risk for influenza complications, according to two subanalyses of the CAPSTONE studies presented at ECCMID 2019.

Evacuation disorders in constipation tied to rectal gas volume

06 Dec 2016

Rectal gas volume in patients with constipation may be greater among those with rectal evacuation disorders than among those without these disorders, a study finds.

The study included 1,552 patients with constipation who were evaluated over 20 years. Of these, 141 had pelvic CT examinations, including anorectal manometry, balloon expulsion tests and colon transit tests. Patients were then grouped according to their condition: rectal evacuation disorders, slow transit constipation and normal transit constipation.

There were two observers who measured areas of gas on each image using standard CT software. Rectal gas volume, maximal rectal gas transaxial area and area of rectal gas were compared among the three patient groups. 

The measurements of rectal gas volume by the two observers were positively correlated (inter-class correlation coefficient 0.99; p<0.001). Measurements of rectal gas volume and maximal rectal gas transaxial area differed among the groups (p<0.001 for both).

Patients with rectal evacuation disorders had higher median rectal gas volume compared with patients with slow transit or normal transit constipation (13.84 vs 2.51 and 1.33 cm3; p<0.05 for both).

Similarly, area of rectal gas, which was correlated with maximal rectal gas transaxial area (Spearman correlation coefficient, 0.7; p<0.001), differed among the three groups (p=0.033). Patients with rectal evacuation disorders showed greater areas of rectal gas on the abdominal scout film compared with patients with normal transit constipation.

The findings indicate that rectal gas volume may be used to identify evacuation disorders in patients with constipation.

Digital Edition
Asia's trusted medical magazine for healthcare professionals. Get your MIMS Doctor - Malaysia digital copy today!
Sign In To Download
Editor's Recommendations
Most Read Articles
Tristan Manalac, 5 days ago
Left ventricular assist devices (LVADs) can reverse pulmonary hypertension secondary to left heart disease regardless of baseline pulmonary vascular resistance, according to a new study.
11 May 2019
Acute kidney injury (AKI) commonly occurs within a year after cancer diagnosis in paediatric patients and is tied to long-term deteriorations in renal function, a recent study has found.
11 May 2019
Women practicing exclusive breastfeeding for 6 months achieve greater postpartum weight loss compared with those exclusively breastfeeding for a shorter duration, according to data from the MILK* study.
Pearl Toh, 6 days ago
The selective cap-dependent endonuclease inhibitor baloxavir marboxil (hereafter baloxavir) effectively improves influenza symptoms in adolescent patients and those at high risk for influenza complications, according to two subanalyses of the CAPSTONE studies presented at ECCMID 2019.