Objective To investigate the safety and efficacy of treatment with CT-guided percutaneous irreversible electroporation (IRE) of locally advanced pancreatic cancer(LAPC). Methods Patients with unresectable radiographic stage ⅢLAPC were prospectively collected. Comprehensive blood and imaging (CT,MRI,PET-CT) baseline examinations were completed and analyzed preoperatively. Operations were performed under general anesthesia and the needles were inserted under the guidance of CT. Ablative parameters were altered depending on the tumor size, anatomical location, and the number of electrodes. Needle withdrawal combined segmental ablation was chosen and the active electrode exposure length was 1 cm. All the imaging and serological follow-up examinations were performed within 1 to 3 days after procedures, at day 7 postoperatively, 1 and 3 months postoperatively to evaluate the safety and efficacy of IRE(according to modified response evaluation criteria in solid tumours of WHO). Results All the procedures were completed successfully. Immediately postoperative CT and/or MRI images showed all the ablation areas were well-defined and presented low-density necrosis without enhancement. The CT scans at day 7 postoperatively showed all the 14 lesions were drastically necrotized and the surrounding tissues were unharmed. CT and/or MRI scans at 1 month postoperatively revealed hypodense or low signal ablation areas without enhancement and the peritumoral and involved vessels and pancreatic duct were undamaged. All the patients had a CA199 transient rising, but it decreased progressively within 3 days and then markedly decreased at 1 weak and 1 month postoperatively. The laboratory carcino-embryonic antigen was almost within normal lists. Peripancreatic exudation was noted in 3 cases immediately after the procedures. One patient developed retroperitoneal infection. Mesenteric(2 of 4)and portal(2 of 4)venous thrombosis were found on MRI images in 4 patients. One patient had a duodenum stenosis and 1 died from serious gastrointestinal bleeding 2.5 months after IRE(unclear etiopathogenisis). The postoperative 3 months dynamic imaging showed that 4 of 13 reached complete response (CR) ,7 of 13 reached partial response (PR) and 2 of 13 had stable disease (SD). Conclusion CT-guided percutaneous IRE is safe and effective in patients with locally advanced pancreatic cancer.

Objective To study the efficacy and safety magnesium sulfate for the treatment of adult severe tetanus.MethodsTwenty-seven inpatients with adult severe tetanus during April 2005 - October 2010 were retrospectively analysed.ResultsThe total serum magnesium more than 4 mmol/L was found in 2 patients ( 2/27,7.40％ ).The tracheotomy was performed in 25 Patients (25/27,92.6％),22 of which (22/25,88.0％) run mechanical ventilation with the mean mechanical ventilation time (7.5 ± 3.7 ) days,(4 to 16 days).Pulmonary infection occurred in 25 cases (25/27,92.6％).Twenty-three of 27 (23/27,85.2％ ) cases were cured except 4 cases died,and the mean hospital stay was (32.22 ± 18.78) days,(25to 48) days.Conclusions20％ magnesium sulfate is safe for treatment of the patients of adult severe tetanus.It can control not only muscle rigidity and spasms but also autonomic instability efficaciously,and lower the dosage of sedative such as diazepam and chlorpromazine.This method is worth popularizing in clinical practice for its easy operation and low cost.

Nanoknife (irreversible electroporation) has demonstrated to be a safe and effective approach to tumor ablation,and plays a prominent role in application of treatment of pancreatic carcinoma,specifically locally advanced pancreatic carcinoma (LAPC).The complicated parameters of Nanoknife comparatively is still difficult.The advantage,optimal selection,adequate parameters regarding Nanoknife were reviewed in this article.

Objective To investigate the complications caused by CT-guided percutaneous radiofrequency ablations (RFA) for lung cancer and analyze the prevention approach. Methods A total of 125 lung cancer patients (142 RFA treatments) in our hospital were enrolled in this study between July 2015 and June 2017. This retrospective study analyzed the reasons and the strategies for preventing the complications. Results One hundred and twenty?five patients underwent RFA treatment for lung lesions. All the operations were successfully completed. During the treatment, 18 patients showed hemorrhage (3 of CTCAE grade 3 hemorrhage); 16 patients showed pneumothorax, among which, 15 patients have chronic obstructive pulmonary disease; 28 patients showed chest pain (23 cases were located under the pleura); 3 patients showed pneumonia;1 patient showed pulmonary abscess, which located in the subpleural space with a maximum diameter of ＞3 cm; 1 patient showed pulmonary embolism, and 1 patient with scald. Complications were attenuated after symptomatic treatment. Conclusion The main reasons of complications of RFA in treating lung cancer were direct injuries caused by punctures, tumors with abundant blood supplement, tumors adjacent to pleura, low scores of lung function, coagulation disorders, and diabetes. The key points for avoiding and reducing complications are preoperative evaluation of patients' basic situations, exclusion of intraoperative avoidable technical risk factors.

Objective To investigate the CT-guided percutaneous irreversible electroporation (IRE) in treating locally advanced pancreatic cancer (LAPC) and providing guidance for its prevention and treatment. Methods We retrospectively analyzed the clinical and imaging data of 17 patients (17 lesions) of LAPC treated with CT-guided IRE in our hospital from July 2015 to June 2016. Complications were documented and reviewed at day 7,30 and 90 follow up as well as during the procedure. The Clavien?Dindo was used for classification. The reasons that induced complications were summarized and to further discuss the prevention and treatment approaches. Results Of 17 patients, 2 patients suffered a transient tachycardia during the procedure. Eleven patients (65%) showed complications at day 7, of which gradeⅠcomplications occurred in 6 cases, including abdominal pain, nausea, vomiting, or a few of inflammatory exudations around the pancreas; four patients have grade Ⅱ complications, along with portal vein thrombosis;one patient showed grade Ⅲ a complications for retroperitoneal infection. With 30 days follow up, the grade Ⅰ complications disappeared, gradeⅡcomplications have not getting better, while grade Ⅲ a complications have been improved. With 90 days follow up,patients with grade Ⅲ a complications getting better; two patients with grade Ⅱ complications didn't show any changes;2 cases progressed to grade Ⅴ, and died of digestive tract bleeding at 82 days and 98 days after procedure. Conclusion CT-guided irreversible electroporation for treating LAPC is a safe ablation approach. Strict patient selection before procedure and make a reasonable prevention and treatment measures can reduce the complications.

ObjectiveTo analyze the clinical characteristics and the use of traditional Chinese medicine （TCM） therapy in cancer patients with COVID-19， and to provide reference for making TCM prevention and treatment strategies and determining diagnosis and treatment priorities for patients with malignant tumors in the COVID-19 epidemic. MethodsThe medical records of 225 malignant tumor cases with COVID-19 who were admitted to 7 national research centers from January 1st to 20th， 2023 were retrospectively collected， and the main symptoms and duration after infection， nucleic acid negative conversion time， use of TCM therapy， and changes in adverse reactions after resuming anti-tumor treatment were analyzed. ResultsA total of 222 malignant tumor patients with COVID-19 were included in the analysis， involving 205 mild cases and 17 moderate cases. The top four most frequently reported clinical symptoms were fever （165 cases）， expectoration or dry cough （99 cases）， decreased appetite （95 cases） and fatigue （85 cases）， of which 40 expectoration or dry cough cases ， 37 fatigue cases and 29 decreased appetite cases lasted for more than 14 days. One hundred and five patients with nucleic acid detection report had a median negative conversion time of 14 days. The nucleic acid negative conversion time was significantly longer in patients with lung cancer compared to those with digestive system malignant tumors， and in those with myelosuppression than those without （P＜0.01）. During the infection period， 47.30% （105/222） of the patients used Chinese patent medicine， and 21.17% （47/222） were treated with herbal decoctions. The use of TCM in patients during the prevention and rehabilitation period， was 1.80%（4/222） and 7.21%（16/222）， respectively. Fifty-five patients resumed anti-tumor treatment after nucleic acid negative conversion， and received TCM simultaneously. Observed adverse reactions， including gastrointestinal reactions， bone marrow suppression， and neurotoxicity， were all grade 1 to 2， and no new adverse events occurred during follow-up. ConclusionCertain malignant tumor patients with COVID-19 had prolonged symptoms and nucleic acid negative conversion time Rational use of TCM can help to promote the rehabilitation of the patients and ensure the smooth process of anti-tumor treatment after infection.