Objectives This study is to evaluate the efficacy of participatory ergonomic (PE) intervention on musculoskeletal disorders (MSDs) and work ability among young dental professionals in China. Methods A cluster randomized controlled trail was conducted during 2015–2016. Twenty‐nine departments from five hospitals in the South of China were randomized into intervention (14 departments) and control (15 departments), with individuals of 125 and 138 dental professionals, respectively. Main participatory ergonomic interventions involved work posture, repetitive motions, tool usage, work break relaxation and work time re‐arrangement with total 235 ergonomic changes in the trail. Individual ergonomic risk exposure was assessed by investigator's observation using quick exposure check (QEC). Work ability index (WAI) and MSDs were collected by questionnaires at baseline, and every 3 months during the 1‐year follow‐up. Results Follow‐up rate was 91% and 96% for the intervention and control group, respectively. Significant reductions in ergonomic risk exposure and MSD prevalence on six anatomic sites were found in the PE group during the different follow‐up stages. WAI scores improved by 1.1 (95% CI 0.43, 1.89) after the 9‐month intervention. Compared to the control, the PE participants significantly reduced MSDs on neck (OR = 2.93, 95% CI: 1.25, 4.03) and wrists/hands (OR = 2.33, 95% CI: 1.08, 4.21), marginally increased WAI scores by 0.53 (95% CI: −0.02, 1.56) due to the interventions. Conclusion PE intervention is effective in reducing ergonomic risk exposure and MSDs on neck and wrists/hands among young dental professionals. PE ought to be offered in the early dental career for preventing MSDs.

Background To describe the clinical characteristics of EATL with intracranial metastasis from cases published in literature Subjects EATL is a rare disease of the gastrointestinal tract. Intracranial metastasis associated with EATL is even rare. Six cases including one of ours were recruited in the study. Five reported cases were found between 1997 and 2012 in the English literature (table 1). Methods Ours was a 35-year-old man who presented initially with diarrhoea, and he was later confirmed to have EATL from biopsy at jejunum that showing positive in CD3, CD8 and CD56 with negative in CD4. Since diagnosis, he had received 11 cycles of adjuvant chemotherapy. He underwent laparotomy with resection and anastomosis of jejunum due to the acute abdomen. An episode of left-sided weakness after having received his 11th cycle of chemotherapy led to brain