The present paper is to evaluate the scientific research level and development trends of biomedical engineering in China using metrology analysis on Chinese biomedical engineering scientific literatures. Pubmed is used to search the biomedical engineering publications in recent 5 years which are indexed by Science Citation Index, and the number and cited times of these publications and the impact factor of the journals are analyzed. The results show that comparing with the world, although the number of the publication in China has increased in recent 5 years, there is still much room for improvement. Among Chinese mainland, Hongkong and Taiwan, Chinese mainland maintains the obvious advantage in this subject, but Hongkong has the highest average cited number. Shanghai and Beijing have better research ability than other areas in Chinese mainland.
ObjectiveTo summary the clinical application of a new and minimally invasive ablation technology for tumors—irreversible electroporation. MethodsRelated domestic and foreign literatures were reviewed. ResultsCompared with traditional ablation technology, irreversible electroporation had advantages of complete ablation with well-demarcated margin, preservation of vital structures, avoidance of heat/cold-sink effect, and short ablation time. Irreversible electroporation may play an import role in patients who couldn't tolerate surgery in reason of combining with other disease, who were not suitable for surgery due to late tumors, and who had solid tumors of less than 3 cm in diameter. ConclusionAs a new and minimally invasive ablation technology for tumors, irreversible electroporation has high safety and efficacy.
Objective To study clinical efficacy of irreversible electroporation in the treatment of advanced hepatic carcinoma. Methods Between July 2015 and September 2015, 8 patients with advanced hepatic carcinoma (10 tumors) were treated by ultrasound-guided irreversible electroporation, using pertacuneous, laparoscope or open surgery in the Rockets Army General Hospital of PLA. Prospectively collected and summarized the clinical data. Finally, analyzed the therapeutic effect of irreversible electroporation. Results Compared with before treatment, the quality of life score significantly increased 〔(37.75±4.65) scores vs. (22.25±2.87) scores, P=0.000〕 in 3 months after treatment of irreversible electroporation, but value of serum total bilirubin (56.37 mmol/L vs. 150.40 mmol/L, P=0.046), direct bilirubin (58.69 mmol/L vs. 71.60 mmol/L, P=0.012), alanine aminotransferase 〔(52.63±12.14) U/mL vs. (87.28±27.94) U/mL, P=0.003〕, asperate aminotransferase 〔(48.45±13.75) U/mL vs. (74.40±21.09) U/mL, P=0.000〕, and alpha fetoprotein (82.10 ng/mL vs. 159.20 ng/mL, P=0.042) significantly decreased. One patient suffered from persistent upper abdominal pain after irreversible electroporation, but no serious complications, such as infection, biliary fistula, hemorrhage, and liver or kidney failure occurred in all 8 patients. Abdominal enhanced CT scanning or MRI in 3 months after irreversible electroporation showed complete ablation in 7 patients and incomplete ablation with some residual in 1 patient. Eight patients were followed up for 3-5 months 〔an average of (4.0±0.9) months〕. During follow-up period, all patients had been alive with 1 case of recurrence. Conclusion The effect of ultrasound-guided irreversible electroporation in the treatment of advanced hepatic carcinoma is remarkable, and it may deserve clinical application in consideration of its safety and efficacy.