Risk factors for in-hospital mortality in patients underwent pertaneous transhepatic biliary drainage with malignant obstructive jaundice: a prospective study / 中华放射学杂志

Objective In-hospital mortality rate in patients undergoing percutanous transhepatic biliary drainage for malignant obstructive jaundice remained high.This study aimed to assess pre-,intra-and post-procedure risk factors which were independently associated with increased in-hospital mortality.Methods One hundred and fifty-five consecutive patients with malignant obstructive jaundice received initial PTBD drainage.Twenty-five pre-procedure,4 intra-procedure and 6 post-procedure factors potentially related with in-hospital mortality were assessed by univariate and multivariate analysis.Results In-hospital mortality rate was 16.8％ (26/155).Of 25 pre-procedure variables analysed,Child-Pugh classification C,creatinine (≥ 6.93 μmol/L) and quality of life (≤ 30) were found to be significant in univariate and multivariate analysis.Increased mortality was seen in this study with two or more risk factors,significantly different from patients who had none or one risk factor(P ＜0.01).None of the intra-procedure factors were important in identifying patients at risk of death.Multivariate analysis indicated post-PTBD cholangitis and unsuccessful drainage as post-procedure risk factors that correlated with in-hospital death.Conclusions Three pre-procedure and two post-procedure risk factors were identified associated with in-hospital mortality.

Imaging findings of tarsal chondroblastoma / 中华放射学杂志

Objective To analysis the imaging features of the chondroblastoma in the tarsal bone. Methods The locations of 134 cases of pathologically confirmed chondroblastoma were retrospectively analyzed. Eleven of them were in tarsal bones and their X-ray and CT findings were analyzed. Results Of the 11 cases of tarsal chondroblastoma, 6 were in talus, 3 were in calcaneus and 2 cases were in navicular bones. They were examined by the X-ray and 5 cases had additional CT scans. The common locations were the posterior portion of the talus and calcaneus. The X-ray findings included expansive destruction (10/11), mild osteosclerosis (11/11), bone ridge (9/11), articular facet destruction (7/11) and spot or patching calcification(6/11). The imaging findings of CT included articular facets destruction (5/5), bone ridge (5/5) and spot or patching calcification (2/5). Conclusion The talus and the calcaneus are the frequently involved location of tarsal chondroblastoma. Its X-ray and CT findings are characteristic but not exclusive.