Relationship between self-perceived noise intensity and sleep quality in noise-exposed workers—A mediating role of negative emotions / 环境与职业医学

Background Studies on the relationships of environmental noise exposure with negative emotions and sleep quality have long been reported. Self-perceived noise intensity is not only related to environmental noise exposure, but also reflects an individual's susceptibility to noise; however, few studies on self-perceived noise intensity, negative emotions, and sleep quality have been reported, and it is not clear whether negative emotions play a mediating role in the relationship between self-perceived noise intensity and sleep quality. Objective To analyze the mediating role of negative emotions (anxiety, depression, and stress) in the relationship between self-perceived noise intensity and sleep quality in noise-exposed workers, and to provide a scientific basis for addressing psychological problems and sleep quality induced by noise exposure. Methods Stratified cluster sampling was used to select noise-exposed workers from a large equipment manufacturing plant in Chengdu from May to June 2023, and demographic characteristics were investigated using a self-designed general information questionnaire; self-perceived noise intensity was reported by the study subjects as the noise intensity of their workplaces; sleep quality was synthesized from three indicators: night sleep duration, self-perceived sleep quality, and sleep-related symptoms; the Anxiety-Depression-Stress Scale (DASS-21 scale) was used to evaluate anxiety, depression, and stress of a worker. Structural equation modeling was used to analyze the pathways of negative emotions (anxiety, depression, and stress) between self-perceived noise intensity and sleep quality. Results The positive rates of negative emotions were 33.1% (anxiety symptoms, 215/649), 26.0% (depression symptoms, 169/649), and 14.0% (stress symptoms, 91/649), respectively in a total of 649 noise-exposed workers. Self-perceived noise intensity was positively correlated with sleep quality score (r=0.218, P<0.001) and negative emotions (anxiety, depression, and stress) (r=0.167, 0.145, 0.167, P<0.001); sleep quality score was positively correlated with negative emotions (anxiety, depression, and stress) (r=0.512, 0.447, 0.513, P<0.001). The results of path analysis showed that the negative emotions (anxiety, depression, and stress) partially mediated between self-perceived noise intensity and sleep quality (β=0.123，P<0.001). Self-perceived noise intensity was positively correlated with negative emotions and sleep quality, and there was a path of self-perceived noise intensity → negative emotion → sleep quality (P<0.001), and the mediating effect accounted for 42.71%. Conclusion The positive rates of anxiety, depression, and stress are high among the noise-receiving workers in this manufacturing industry, and negative emotions characterized by anxiety, depression, and stress partially mediate the relationship between self-perceived noise intensity and sleep quality.

Repair of diabetic foot ulcer wound by anterolateral thigh chimeric perforator flap / 中华显微外科杂志

Objective:To investigate the clinical effect of the anterolateral thigh perforator chimeric flap in the treatment of the wound of diabetic foot ulcer (DFU) .Methods:From January, 2018 to December, 2019, 14 cases wound of DFU of type II diabetic were treated by anterolateral thigh chimeric perforator flap. The patients were 10 males and 4 females, at 49 to 58 years old. Of the 14 patients, 10 with simple peripheral neuropathy, 4 with peripheral neuropathy complicated with vascular disease, and none with single vascular disease. With strict control of patients' blood glucose, antibiotics blended bone cement was applied or filled onto grade 2 or higher grade Wagner's DFU after debridement. In addition, the anterolateral thigh chimeric perforator flap was transferred 2 to 3 weeks later. The size of flap was 8 cm×3 cm-27 cm×7 cm. Regular followed-up were made after surgery.Results:Thirteen flaps survived in one stage after surgery. The other 1 flap had venous vascular crisis, and survived completely after active exploration. The patients were followed-up for 6-12 months. All the flaps survived well in good shape and texture. The donor and recipient areas healed well. The functional recoveries of the DF were satisfactory.Conclusion:Application of anterolateral thigh perforator chimeric flap in repair of the refractory wound of DF achieves a good clinical outcome and effectively improves the life quality of patients.

Mini-endoscopes sympathectomy for hyperhidrosis palmaris / 中国医师进修杂志

Objective To explore the feasibility of sympathectomy for hyperhidrosis palmaris using mini-endoscopic instruments and two ports approaches.Methods Thirty-one patients underwent sympathectomy using 3 or 5 mm mini-endoscopic through the cannula introduced at the fourth intercostal space and a 2.5 mm Hook-electrode through the cannula introduced at the second intercostal space on the anterior axillary line,without pleural drainage.Results All cases were successful without major intraoperative incident and postoperative complications,such as wound infection and bleeding.No analgesic was used.The average time of operations was(25?8) minutes each side.Hyperhidrosis palmaris was disappeared in 29 cases(93.5%),reduced in 2 cases(6.5%) postoperatively.Conclusions Sympathectomy using mini-endoscopic instruments and two ports approaches is safe,feasible and effective with good cosmetic result.

Percutaneous hepatocholangiostomy in treatment of recurrence hepatobiliary stones / 中国医师进修杂志

Objective To explore the potential predominance and value of percutaneous hepatocholangiostomy (PCH) in treatment of recurrence hepatobiliary stones (RHS). Methods Seventeen cases with RHS were treated by PCH from February 2001 to October 2005, which was an improved technology of percutaneous transhepatic cholangioscopy (PTCS) and made reference to the methods of percutaneous nephrostomy (PCN). Results Seventeen cases were successfully treated. The average blood loss was 40 ml (ranging from 15 to 100 ml), and stones were removed completely in 88.2% (15/17). The average hospital stay was 14 (ranging from 10 to 59) days. No one required postoperative analgesic. No postoperative bleeding and biliary leakage were found. Conclusions PCH has significant advantages of minimal invasion, little blood loss, less pain, less complications and quick recovery in the treatment of RHS.