Objective To investigate the clinical efficacy of three-dimensional (3D) laparoscopic surgery in treatment of hepatic cystic echinococcosis.Methods The retrospective cross-sectional study was conducted.The clinical data of 40 patients with hepatic cystic echinococcosis who underwent 3D laparoscopic surgery in the Qinghai Province People's Hospital from March 2016 to July 2017 were collected.All the 40 patients were treated using 100 mg hydrocortisone on preventing intraoperative anaphylaxis.The experienced surgeons with proficiency in the laparoscopic technology in the same team finished surgery.Patients underwent respectively 3D laparoscopic excision of internal capsule in hepatic echinococcosis + residual cavity treatment,external capsule resection in hepatic echinococcosis and partial hepatectomy based on their conditions.Observation indicators:(1) intraoperative situations:operation completion,surgical procedures,operation time,volume of intraoperative blood loss and blood transfusion;(2) postoperative recovery situations:time to initial anal exsufflation,time for initial fluid diet intake,time for out-of-bed activity,time of indwelling drainage-tube,wound healing,postoperative complications and duration of postoperative hospital stay;(3) follow-up:number of patients with follow-up,follow-up time,oral anti-echinococcosis medical therapy during follow-up,hepatic echinococcosis recurrence and abdominal cavity implantation metastasis.Follow-up using outpatient examination and telephone interview was performed to detect the abdominal symptoms,oral anti-echinococcosis medicine,hepatic echinococcosis recurrence and metastasis up to September 2017.Measurement data with normal distribution were represented as (x)± s.Measurement data with skewed distribution were described as M (range).Results (1) Intraoperative situations:all the 40 patients underwent successful laparoscopic surgery,including 17 undergoing excision of internal capsule in hepatic echinococcosis + residual cavity treatment,15 undergoing external capsule resection in hepatic echinococcosis and 8 undergoing partial hepatectomy.Two patients were combined with abdominal and pelvic hydatids and underwent 3D laparoscopic excision.Operation time and volume of intraoperative blood loss of 40 patients were respectively (100 ± 28) minutes and (86± 24) mL,without intraoperative blood transfusion.(2) Postoperative recovery situations:time to initial anal exsufflation and time for initial fluid diet intake in 40 patients were (2.4± 1.8)hours and (1.7±0.9)days.Forty patients had out-of-bed activity on the day of surgery.Of 40 patients,abdominal drainage-tubes of 39 were placed for 2-3 days;abdominal drainage-tube of 1 with postoperative residual cavity-induced bile leakage was indwelled for 2 months and then was removed.Wound healing and duration of postoperative hospital stay in 40 patients were Class-A healing and (10.5 ± 2.1) days.During hospitalization,39 patients didn't have bleeding,bile leakage,anaphylactic shock,intestinal adhesion and obstruction;1 patient with postoperative residual cavity-induced bile leakage had indwelling drainage-tube removal at 2 months postoperatively.(3) Follow-up:all patients were followed up for 2-15 months,with a median time of 9 months.During the follow-up,40 patients were not complicated with discomforts and received oral antiechinococcosis medical therapy,without hepatic echinococcosis recurrence and abdominal cavity implantation metastasis.Conclusion The 3D laparoscopic surgery is safe and feasible in the treatment of hepatic cystic echinococcosis,and has an obvious advantage in the treatment of irregular hepatic cystic echinococcosis,with good short-term outcomes.

Objective To investigate the value of computer-assisted quantification of pulmonary embolism volume(PEV)in identifying mild-to-high-risk acute pulmonary embolism(APE).Methods We retrospectively enrolled 143 patients with suspected APE confirmed by computed tomography pulmonary angiography(CTPA)at Yan'an University Affiliated Hospital from January 2017 to December 2020.According to the 2018 Chinese Guidelines for Diagnosis,Treatment and Prevention of Pulmonary Thromboembolism,all the patients were divided into low-risk group(n=88)and mild-to-high-risk group(n=55).We collected the patients'basic demographic data,clinical manifestations,and serum levels of N-terminal-B type natriuretic peptide precursor(NT-proBNP)and D-dimer.Based on CTPA images,the degree of pulmonary thromboembolism was artificially evaluated to obtain the pulmonary artery occlusion index(PAOI).The thrombus was segmented using the pulmonary embolism detection tool based on digital lung,and PEV was calculated.We compared the differences in clinical and laboratory indicators and PAOI and PEV between the two risk groups.We analyzed the value of PAOI and PEV in identifying mild-to-high-risk APE using receiver operating characteristic(ROC)curves,and used Logistic regression analysis to identify independent risk factors in predicting mild-to-high-risk APE.Different models were established.Results Compared with the low-risk group,APE patients in the mild-to-high-risk group were older(P＜0.05),had lower diastolic blood pressure(P＜0.05),higher levels of D-dimer and NT-proBNP(P＜0.05),lower levels of platelet count,arterial oxygen partial pressure and arterial carbon dioxide partial pressure(P＜0.05),and higher levels of PAOI and PEV(P＜0.001).ROC curve analysis showed that the area under the curve for PEV in identifying mild-to-high-risk APE was 0.809(95％CI:0.734-0.884),while that for PAOI was 0.753(95％CI:0.667-0.839).Logistic regression analysis showed that PEV and NT-proBNP were independent risk factors for mild-to-high-risk APE(P＜0.05).Conclusion PEV and NT-proBNP are independent risk factors for mild-to-high-risk APE.

Background: Excessive delivery of free fatty acids (FFAs) to the liver promotes steatosis and insulin resistance (IR), with IR defined as reduced glucose uptake, glycogen synthesis and anti-lipolysis stimulated by normal insulin levels. Whether the associations between FFAs and diabetes development differ between patients with and without nonalcoholic fatty liver disease (NAFLD) remains unclear. Methods: Consecutive subjects (2,220 NAFLD subjects and 1,790 non-NAFLD subjects according to ultrasound imaging) were enrolled from the First Affiliated Hospital of Sun Yat-sen University between 2009 and 2019. The homeostasis model assessment of insulin resistance (HOMA-IR) was calculated. Results: There was an approximate J-shaped relationship between FFA levels and HOMA-IR in the NAFLD group. Higher FFA concentration quartiles were associated with higher risks of IR (odds ratio [OR], 9.24; 95% confidence interval [CI], 6.43 to 13.36), prediabetes (OR, 10.48; 95% CI, 5.66 to 19.39), and type 2 diabetes mellitus (T2DM; OR, 19.43; 95% CI, 12.75 to 29.81) in the NAFLD group but not in the non-NAFLD group. The cut-off points for the FFA levels increased in a stepwise manner in discriminating IR, prediabetes and T2DM (573, 697, and 715 μmol/L) in the NAFLD group but not in non-NAFLD individuals. Conclusion A distinct dose-dependent relationship of FFA levels was found with IR, prediabetes and T2DM in NAFLD patients. Screening serum FFA levels in NAFLD patients would be valuable in preventing diabetes development.

Background: Excessive delivery of free fatty acids (FFAs) to the liver promotes steatosis and insulin resistance (IR), with IR defined as reduced glucose uptake, glycogen synthesis and anti-lipolysis stimulated by normal insulin levels. Whether the associations between FFAs and diabetes development differ between patients with and without nonalcoholic fatty liver disease (NAFLD) remains unclear. Methods: Consecutive subjects (2,220 NAFLD subjects and 1,790 non-NAFLD subjects according to ultrasound imaging) were enrolled from the First Affiliated Hospital of Sun Yat-sen University between 2009 and 2019. The homeostasis model assessment of insulin resistance (HOMA-IR) was calculated. Results: There was an approximate J-shaped relationship between FFA levels and HOMA-IR in the NAFLD group. Higher FFA concentration quartiles were associated with higher risks of IR (odds ratio [OR], 9.24; 95% confidence interval [CI], 6.43 to 13.36), prediabetes (OR, 10.48; 95% CI, 5.66 to 19.39), and type 2 diabetes mellitus (T2DM; OR, 19.43; 95% CI, 12.75 to 29.81) in the NAFLD group but not in the non-NAFLD group. The cut-off points for the FFA levels increased in a stepwise manner in discriminating IR, prediabetes and T2DM (573, 697, and 715 μmol/L) in the NAFLD group but not in non-NAFLD individuals. Conclusion A distinct dose-dependent relationship of FFA levels was found with IR, prediabetes and T2DM in NAFLD patients. Screening serum FFA levels in NAFLD patients would be valuable in preventing diabetes development.

Objective: To investigate the incidence of complications following minimal invasive subcutaneous internal fixator (INFIX) for the treatment of anterior pelvic ring instability, and to analyze control measures. Methods: Data of 42 patients with anterior pelvic ring instability who were treated by anterior subcutaneous internal fixation in our hospital from January 2016 to December 2017 were retrospectively analyzed. There were 15 females and 27 males with an average age of 45.4 years (range, 18-67 years). There were 26 traffic injuries, 10 falling injuries, 3 crush injuries and 3 low energy injuries. According to Tile classification, 24 cases of B2 type, 16 cases of B3 type, 1 case of C1 type and 1 case of C2 type. According to Young-Burgess classification, there were 20 cases of LCI, 18 cases of LCII, 1 case of LCIII, 1 case of APCI, 1 case of APCII, and 1 case of VS. Fourteen cases were combined with limb fractures, and 11 cases were combined with thoracic or abdominal injuries requiring surgical treatment, while 16 cases were with brain injuries. For type APC2, LC1, and some LC2 fractures, fixation for the anterior pelvic ring is enough with INFIX technique alone. For some LC2, LC3, or VS fractures, the anterior and posterior ring were both fixed. Postoperative reduction was evaluated by Matta radiological criteria. Lateral thigh numbness and pain, quadriceps muscle power were recorded during follow-up, and clinical efficacy was evaluated by Majeed score at 6 months after operation. Results: All the 42 patients were followed up for 6 to 12 months, with an average of 9.3 months. Matta standard evaluation for fracture reduction showed that 28 cases were excellent, 14 cases good, and the excellent and good rate was 100%. The early complication rate (within 3 month after operation) was 23.8% (10/42) including 6 cases of lateral femoral cutaneous nerve injury and 2 cases of femoral nerve injury. The symptoms were obviously relieved after the treatment of nutrient nerve and hyperbaric oxygen; 1 case had incision infection which was healed after anti-infection therapy and internal plant removal; 1 case suffered from superior gluteal artery injury which was controlled by pressure hemostasis. Six months after surgery, no case had lost reduction. At 6 months follow-up, the Majeed score was 72-96, with an average of 84.96, of which 32 were excellent and 10 were good, thus the excellent and good rate was 100% (42/42). Conclusion INFIX is an effective internal fixation method for the treatment of unstable anterior pelvic ring injury. However, it has a high rate of early complications, among which nerve injury has the highest incidence.

Background China is facing enormous challenges of occupational disease prevention and control and high incidences of occupational diseases. Occupational disease diagnosis is an important part of occupational disease prevention and control. However, the current situation of occupational disease diagnosis service system in China is not optimistic. Relevant national laws, regulations, policies, and plans require to improve the current technical support system of occupational disease diagnosis and treatment, and to establish a sound occupational disease diagnosis, treatment, and rehabilitation network on the foundation of existing medical and health institutions. Objective To analyze the development status and existing problems of occupational disease diagnosis institutions in China, and propose countermeasures and suggestions. Methods All occupational disease diagnosis institutions in China were surveyed by questionnaire using comprehensive census. The Occupational Health Center of the National Health Commission organized the preparation of the questionnaire and the participation of all relevant institutions in the survey. All data collected in the survey were for the year 2020 and available as of December 31, 2020. The questionnaire covered the overall situation, service provided, staffing of certified physicians for providing occupational disease diagnosis, and instruments in selected categories of occupational disease diagnosis institutions. Results As of December 2020, there were 587 occupational disease diagnosis institutions in China; the highest average number of enterprises served by an occupational disease diagnosis institution was 39000, and that of employees served by an occupational disease diagnosis institution was 2.15 million in Chongqing. There were a total of 5809 physicians certified to diagnose occupational diseases in China, with 20.4 doctors per specified occupational disease prevention and treatment hospital, 9.5 doctors per general hospital, and 8.3 doctors per disease control and prevention center. Only 87.7% of the institutions were equipped with digital radiography (DR), 58.1% with computed tomography (CT), and 96.4% with pulmonary function meters; the equipment rate of computed radiography (CR) was only 6.5%, and that of CT was only 14.6% in all-level disease control and prevention centers; 45 disease control and prevention centers were not equipped with any common x-ray machine, CR, DR, or CT. Conclusion In the face of the still serious situation of prevention and treatment of occupational diseases, the overall distribution of institutions is uneven around China, the number of institutions in some regions is relatively insufficient, and the comprehensive capacity of centers for disease control and prevention at all levels needs to be improved. Strengthening comprehensive capacity building of occupational disease diagnosis institutions and training of relevant physicians would be helpful to ensure the accuracy and scientificity of diagnosis. At the national level, further increasing policy guidance and financial input would help occupational disease diagnosis institutions upgrade their techniques and service capacity, and protect workers' occupational health rights.