Furthermore, data acquisition can be repeated over time for functional evaluation of small bowel mobility, which is helpful for diagnosing low-grade stenosis and determining the level of obstruction.
The variables included the followinig: age, sex, concurrent illness, time between onset of symptoms and surgery, American Society of Anesthesiologists (ASA) grading, location of obstruction, type of treatment, operative findings (peritonitis, perforations), Dukes staging, and major morbidities.
They identify 16 loci newly associated with variation in two cross-sectional measures of lung function, used to define airway obstruction and to grade the severity of obstruction.
The objective was to compare the grading of airway obstruction using the percent predicted FEV1 (ATS) with a confidence interval-based system (ITS), with particular focus on pulmonary functions in patients having both airway obstructions and restrictions.
The grading of airway obstruction is currently based on the FEV1 (American Thoracic Society [ATS] recommendations), while prior recommendations by the Intermountain Thoracic Society ITSS) graded the severity of obstruction based on the FEV1/FVC ratio.
The incidence of grade 3 SB obstruction was 5.7% (2/35, at 7th and 14th month postoperatively) in the study.
Modified bowel CT is useful in identifying chronic low-grade obstructions, including the dilated segment and location of obstruction.
The authors suggested that high-grade biliary obstruction, out of proportion to the degree of the duct wall thickening, may be a feature of cholangiocarcinoma.
Retrograde colonic distension is contraindicated in the presence of high-grade bowel obstruction, when a standard contrast-enhanced CT acquisition reliably investigates the site and cause of obstruction, thanks to the pre-existent bowel dilatation with intraluminal fluid.
