This is the first study on osteoporosis diagnosis with routine CT abdominal scans in Chinese population. The cutoff values were comparable with previous studies in Caucasian populations suggesting generalizability. Radiologists should consider routinely reporting these opportunistic findings to facilitate early detection and treatment of osteoporosis to prevent fractures and related complications.
BACKGROUND: Newer flow diverters are enhanced with antithrombogenic surface modifications like the Pipeline Embolization Device with Shield Technology and the Derivo Embolization Device and are purported to facilitate deployment and reduce ischemic events. PURPOSE: Our aim was to review the safety and efficacy of surface-modified flow diverters in treating patients with cerebral aneurysms.DATA SOURCES: We used Preferred Reporting Items for Systematic Reviews and Meta-Analyses-compliant systematic review and meta-analysis covering 3 major data bases and gray literature between 2014 and 2019.STUDY SELECTION: Two reviewers independently reviewed human studies of surface-modified flow diverters for eligibility based on predetermined criteria. DATA ANALYSIS:The random effects model and Freeman-Tukey arcsine transformation were used to pool efficacy outcomes (technical success, aneurysm occlusion at 6 and 12 months) and safety outcomes (mortality, morbidity, all ischemia, and serious ischemia). Subgroup analysis was performed to compare outcomes between 2 different flow diverters.DATA SYNTHESIS: Eight single-arm case series involving 911 patients and 1060 aneurysms were included. The median follow-up was 8.24 months. Pooled estimate for technical success was 99.6%, while the aneurysm occlusion at 6 and 12 months were 80.5%, and 85.6%, respectively. Pooled estimates for mortality, morbidity, total ischemia, and serious ischemia rates were 0.7%, 6.0%, 6.7%, and 1.8%, respectively. Most studies were of good quality, and no significant heterogeneity was observed.LIMITATIONS: Limitations include a retrospective, observational design in some studies; heterogeneous and underreported antiplatelet therapy; and potential performance and ecologic bias. CONCLUSIONS:Early-to-midterm safety and efficacy for surface-modified flow diverters appear comparable with older devices, especially for small, unruptured anterior circulation aneurysms. Long-term clinical data are required to further corroborate these results.
Percutaneous cholecystostomy (PC) is a well-established treatment for acute cholecystitis. We investigate the performance and role of PC in managing acute cholangitis.Retrospective review on all patients who underwent PC for acute cholangitis between January 2012 and June 2017 at a major regional hospital in Hong Kong.Thirty-two patients were included. The median age was 84 years and median American Society of Anaesthesiologists (ASA) physical status was Class III (severe systemic disease). All fulfilled Tokyo Guidelines 2013 (TG13) diagnostic criteria for moderate or severe cholangitis. Eighty-four percent of the patients were shown to have lower common bile duct stones on imaging. The majority had previously failed intervention by endoscopic retrograde cholangiopancreatography (38%), percutaneous transhepatic biliary drainage (38%), or both (13%)The technical success rate for PC was 100% with no procedure-related mortality. The overall 30-day mortality was 9%. Rest of the patients (91%) had significant improvement in clinical symptoms and could be discharged with median length of stay of 14 days. Significant postprocedural biochemical improvement was observed in terms of white cell count (P < .001), serum bilirubin (P < .001), alkaline phosphatase (P = .001), and alanine transaminase levels (P < .001). Time from admission to PC was associated with excess mortality (P = .002).PC is an effective treatment for acute cholangitis in high-risk elderly patients. Early intervention is associated with lower mortality. PC is particularly valuable as a temporising measure before definitive treatment in critical patients or as salvage therapy where other methods endoscopic retrograde cholangiopancreatography/percutaneous transhepatic biliary drainage (ERCP/PTBD) have failed.
Pancreas divisum is a common variation in pancreatic ductal anatomy present in up to 10% of the population with variable clinical importance. The crossing duct sign refers to the appearance of dominant dorsal duct crossing the intrapancreatic common bile duct to empty into the minor papilla, best illustrated on maximum intensity projection images from MRCP.
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