Preliminary Recommendations on the Timing of Lung Surgery after Novel Coronavirus Infection in Patients with Pulmonary Nodules and Lung Cancer / 中国肺癌杂志

In recent years, the corona virus disease 2019 (COVID-19) pandemic has had a huge impact on the global medical, political and economic fields. Since the beginning of the COVID-19 epidemic, our understanding of the impact of COVID-19 has grown exponentially. Recently, the COVID-19 epidemic has changed rapidly in China, and there has been controversy over how to carry out surgical operations for patients with lung neoplastic lesions. Some studies have shown that lung cancer patients undergoing surgery are more likely to experience respiratory failure and perioperative death after contracting COVID-19 than the general population, however, delays in cancer treatment are also associated with increased mortality among these patients. In particular, the novel coronavirus Omikron variant has a higher transmissibility and may escape the immunity obtained through the previous novel coronavirus infection and vaccination. In order to minimize the risk of novel coronavirus infection in surgical patients, it is necessary to develop new treatment guidelines, expert consensus and preventive measures. However, the current rapid change of the epidemic situation has led to insufficient time and evidence to develop guidelines and consensus. Therefore, thoracic surgeons need to evaluate specific patient populations at higher risk of severe complications before surgery and weigh the benefit of surgical treatment against the risk of novel coronavirus infection. We try to give some recommendations on lung surgery during the current domestic epidemic situation based on the guidelines and consensus of oncology and thoracic surgery organizations in different regions on lung surgery.
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Efficacy of thoracic endovascular aortic repair for treatment of Stanford type B traumatic aortic dissection / 中华创伤杂志

Objective:To investigate the clinical efficacy of thoracic endovascular aortic repair (TEVAR) in treating Stanford type B traumatic aortic dissection (TAD).Methods:A retrospective case series study was conducted to analyze the clinical date of 26 patients with Stanford type B TAD admitted to Nantong First People's Hospital from June 2011 to December 2019. There were 21 males and 5 females, aged 35-83 years [(56.2±12.9)years]. All patients mainly suffered from chest and back trauma and were treated with TEVAR. The operation time, intraoperative blood loss, intraoperative heparin dosage, duration of ICU stay and postoperative organ complications were collected. The changes of brain natriuretic peptide, urea nitrogen and creatinine were compared before operation and at one day after operation. The CT angiography (CTA) was performed to mainly detect the location of stent, reverse tearing, paraplegia and internal leakage at 6 months after TEVAR. The aortic CTA was used to measure the maximum diameter of aortic dissecting aneurysm and true lumen diameter of distal aorta before operation and at 6 months after operation, and the diameter changes were compared to determine the aortic remodeling after TEVAR.Results:All patients were followed up for 6-36 months [(25.9±6.3)months]. The operation time was 60-200 minutes [(96.7±30.7)minutes], the intraoperative blood loss was 20-45 ml [(31.1±6.8)ml], the dosage of heparin was 0-0.53 mg/kg [(0.4±0.1)mg/kg], the postoperative ICU stay was 1-7 days [(4.7±1.3)days]. Seven patients developed pulmonary infections after operation and showed significant improvement after closed thoracic drainage, airway management and anti-infection treatment. Two patients had abnormal renal function after operation and received medical therapy for improvement. There was no significant difference in brain natriuretic peptide, urea nitrogen and creatinine between before operation and one day after operation ( P>0.05). At 6 months after operation, the CTA showed that the stent position was satisfactory and there were no serious complications such as reverse tearing and paraplegia. Of one patient with type I endoleak, the tumor did not further expand and his condition was stable. At 6 months after operation, the diameter of dissecting aneurysm [(34.4±5.0)mm] was smaller than that before operation [(38.2±5.6)mm], the true lumen of distal stent [(26.8±4.6)mm] was larger than that before operation [(22.6±6.0)mm] ( P<0.05 or 0.01). Conclusion:For Stanford type B TAD, TEVAR has no significant effect on cardiac function and renal function, with no severe complications and good aortic remodeling.

A Case Report and Literature Review of Pulmonary Wegener' Granulomatosis / 中国肺癌杂志

Wegener' granulomatosis is an autoimmune diseases, often involving the lung and kidney, has a high mortality rate in nontreatment patients. The low incidence and nonspecific features, often lead to misdiagnosis and delayed treatment. This paper reported the diagnosis and treatment of a 55-year-old female patient with primary Wegener' granuloma of the lung diagnosed by percutaneous lung biopsy of pulmonary nodules, and reviews the relevant literature.
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Endovascular treatment of visceral artery aneurysms / 中华普通外科杂志

Objective:To evaluate the efficacy and safety in the treatment of the visceral artery aneurysms (VAAs) by Viabahn stent graft and the detachable coils combined with Onyx embolization.Methods:A retrospective study on clinical and follow up results of 46 patients in the treatment of visceral aneurysms (VAAs) from Jun 2012 to Jun 2018 was carried out.Result:In 18 patients of VAAs treated with Vabahn endovascular stent grafting, the aneurysm cavity was completely isolated after injection of contrast and the technical success rate was 100% (18/18). In 28 patients of VAAs treated with the detachable coils combined with Onyx embolization, the aneurysm cavities of 26 patients among the 28 cases were filled tightly. In 2 patients the aneurysm neck was still visible. The average follow-up period was (36.5±2.3) months by CTA. After treating VAAs with the Viabahn stent graft, the complete isolation rate and the patency of aneurysm bearing artery were respectively 100% (18/18) and 94.4% (17/18). When VAAs was treated with the detachable coils combined with Onyx embolization, the complete isolation rate and the patency of aneurysm bearing artery were respectively 85.7% (24/28) and 92.9% (26/28) (χ 2=3.915, P=0.048), the difference of the patency of aneurysm bearing artery between the two groups was no significant difference (χ 2=0.074, P=0.786). Conclusion:VAAs treated with Viabahn endovascular stent grafting or detachable coils combined with Onyx embolization are both safe and effective.

Heart transplantation and myocardial preservation solution / 医学研究生学报

Myocardial preservation plays a critical role in heart transplantation.Recently,heart transplantation has been practiced wildly all over the world.The aim of this review is to summarize the progress in the researches on the clinical appication and experiments of myocardial preservation sotution.