Background: Ultrasonography (USG) is a perfect device for analyzing more than one joint in rather brief intervals of time and is well accepted by children with no harmful ionizing radiation, usually does not require sedation, and can be carried out without difficulty in an outpatient setting. Purpose: To demonstrate the ability of ultrasonography (USG) in detecting clinical and subclinical synovitis in children with juvenile idiopathic arthritis (JIA) and compare the USG findings with clinical findings. Methods: 20 patients with JIA diagnosed according to the ILAR criteria were include. A total of 208 joints were examined both clinically and ultrasonographically for detection of synovitis. The presence of subclinical synovitis detected by USG was sought and its effect on the classification of JIA was assessed. USG assessment was done using the High-Resolution Linear probe including both grey scale and Power Doppler assessment. Results: The mean age of patients was 10.2 years with average disease duration of 5.9 months. A total of 49 joints (23.5%) had clinical synovitis and 59 joints (28.4%) had USG synovitis out of a total of 208 joints. A total of 14 joints had subclinical synovitis (8.8% out of the 159 clinically normal joints) upon USG. USG additionally brought about classifying three patients as having poly articular disorder who had been considered as oligo articular upon clinical examination. Conclusion: USG assessment of subclinical synovitis in JIA patients is an essential component of classifying the disease and detects more joints with synovitis than clinical examination; however, both are complimentary and should be used in combination in all patients with JIA.
Background.The study was aimed at assessing the role of ultrasonography and multidetector computed tomography angiography in evaluating patients with suspected mesenteric ischemia, as well as assessing the effect of the time from presentation to management on mortality and morbidity. Materials and Methods. Patients with clinically suspected mesenteric ischemia underwent Doppler ultrasound and contrast-enhanced computed tomography. On ultrasonography, we assessed any filling defect in the superior mesenteric artery/vein, narrowing or occlusion of the proximal superior mesenteric artery, ascites, bowel wall thickening, and pneumatosis/portal venous gas. Computed tomography angiography was performed looking for any filling defect in the superior mesenteric artery/vein, superior mesenteric artery/vein calibre, bowel wall thickening, calibre and enhancement and pneumatosis/portal vein gas. Most of our patients underwent emergency surgery and the findings correlated with imaging. All the patients were divided into Group A (n=30) and Group B (n=17) based on the time from presentation to management: within 48 hours of presentation and 48 hours after presentation, respectively. Results. On computed tomography scan, mesenteric vascular involvement was seen in 27 (55%) patients, mesenteric/intestinal twist was observed in 12 (25%) patients, and non-occlusive mesenteric ischemia was found in 6% of patients. The computed tomography findings were found to have a sensitivity of 86%, a specificity of 94% and an accuracy of 90% in cases of mesenteric ischemia. Among 35 patients operated on, those presenting within 48 hours, had a significantly less mortality (63%) in comparison to those presenting after 48 hours (90%). Conclusions. Clinical, laboratory and ultrasound features are non-specific in diagnosing mesenteric ischemia. Computed tomography angiography is a sine qua non in mesenteric ischemia diagnosis. Patients with venous ischemia respond well to conservative management. Early intervention within the first 48 hours is associated with better prognosis.
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