ObjectiveTo explore the role of autofluorescence bronchoscopy in lung cancer operation and the meaning of choice lung cancer operation mode.MethodsTo retrospectively analyze 32 non-small cell lung cancer patients.Before lung cancer operation,white light bronchoscopy (WLB) and autofluorescence bronchoscopy (AFB) had been done routinely.Compared the different invasive tumor conditions by WLB and AFB,operation modes were decided by the edge of the tumor which were proved by biopsy pathology.ResultsIn 32 cases,19 cases underwent pulmonary lobectomy.One case underwent carinal resection and reconstruction.8 cases underwent sleeve lobectomy.4 cases underwent other therapy because of tumor airway metastasis.In 8 cases which underwent sleeve lobectomy,3 ca ses were found by WLB and AFB together,5 cases were found only by AFB.In 4 cases who had no operation chance,2 cases were found by WLB and AFB together,2 cases were only by AFB.The sensitivity for the detection of bronchial premalignant lesions was extremelyhigher withthe addition of AFB than WLBalone ( P ＜ 0.05 ).ConclusionAutofluorescence bronchoscopy is a safe and efficient technique which could improve the sensitivity of diagnosis in lung cancer than WLB.It is important to select operation mode.

Objective To investigate the diagnostic value of transbronchial needle aspiration (TBNA) and transbronchial biopsy(TBB) in central lung cancer.Methods Retrospectively analyzed the diagnostic data of 150 patients with central lung cancer who underwent TBNA followed by TBB in our hospital from January 2011 to October 2012.Results Among 150 patients with central lung cancer,33 cases had intracavity mass.Thirtythree cases (100％) were confirmed by TBB and 32 cases (97.0％) confirmed by TBNA.There was no statistically significant difference between the diagnosis of TBB and TBNA(P =0.90).There were 26 cases with simple stenosis,among which 1 case(3.9％) confirmed by TBB and 26 cases(100％) confirmed by TBNA.And there was statistically significant difference was observed between the diagnosis by TBB and TBNA (P =0.01) Sixteen cases belonged to the lumen external pressure type with 2 cases(12.5％) were confirmed by TBB and 16 cases(100％) confirmed by TBNA.And there was statistically significant difference was observed between the diagnosis by TBB and TBNA (P =0.02).Forty-seven cases had luminal stenosis combined with mucosal diffuse lesions with 25 cases(53.2％) confirmed by TBB and 40 cases(85.1％) confirmed by TBNA.And there was statistical difference was observed between the diagnosis of TBB and TBNA(P =0.04).Twenty-eight cases had mixed type central lung cancer with 27 cases(96.4％) confirmed by TBB and 28 cases(100％) confirmed by TBNA.No statistically significant difference was observed between the diagnosis of TBB and TBNA (P =0.87).Conclusion According to endoscopic performance of central lung cancer,accurate and reasonable choice of biopsy method can minimize inspection costs on the basis of maintaining positive rate of diagnosis in order to achieve optimal titer.

The progress of research of the physical and chemical modification methods to improve the antithrombogenic property of biomedical polyurethane (PU) in the past five years is reviewed in this paper. The physical modification method includes physical blending, physical vapor deposition (PVD) and replication molding technique. Meanwhile, chemical modification method is focused on the covalent bonding to immobilized special molecular. Moreover, the covalent bonding method covered functionalizing the PU surface with tailor-made groups in the bulk and the activation of the surface to form unstable active sites for further reactions.
Animals ; Biocompatible Materials ; chemistry ; pharmacology ; Chemical Phenomena ; Fibrinolytic Agents ; chemistry ; pharmacology ; Humans ; Polyurethanes ; chemistry ; pharmacology

Objective:To explore the prognosis and risk factors for conversion from off-pump coronary artery bypass grafting (OPCABG) to coronary bypass grafting (CABG) during surgery.
Methods: We retrospectively analyzed 2613 patients with elective OPCAB in our hospital from 2001 to 2012, there were 62 (2.37%) patients converted to CABG during the operation as Conversion group, the rest 2551 patients were set as Non-conversion group. The peril-operative baseline clinical data and prognosis condition were compared between 2 groups. The risk factors causing the in-operative conversion were studied with binary logistic regression analysis.
Results: The total conversion rate was 2.37%, including 42 patients of hemodynamic instability, 6 with dififculty of target vessel exposure, 9 with malignant arrhythmia, 3 with graft occlusion and 2 patients with other reasons. Compared with Non-conversion group, the Conversion group had increased post-operative drainage and ventilation time, higher rates of second thoracotomy for stop bleeding and higher peril-operative mortality. Binary logistic regression analysis indicated that chronic obstructive pulmonary disease, previous history of CABG, NYHA class≥3, LVEF≤40%and left main disease were the independent risk factors for in-operative conversion.
Conclusion: Conversion from OPCAB to CABG during the operation would be result in signiifcantly higher morbidity and mortality in relevant patients.

To introduce the diagnosis and treatment, as well as the result of a patient with fat embolism at cerebral and ophthalmic artery, following fronto-temporal autologous fat transplantation. The patient, a 39-year-old woman, who received fronto-temporal autologous fat transplantation in other hospital in May 2018. Hemiplegia and right eye blindness happened right after autologous fat transplantation. The patient was transferred to the 940th Hospital of PLA Joint Service Support Force 5 hours after operation, but the function of the limbs and the right eye were not well restored after intensive treatment. Fat embolism is the most serious complication in fat transplantation. Once it occurs, the prognosis is poor. Therefore, the process of autologous fat transplantation should be standard to prevent related complications.

Objective:To investigate the clinical effect of using chimeric perforator flap with muscle flap in repairing deep dead space of refractory wound.Methods:From February 2015 to February 2019, 22 cases of refractory wounds with deep dead space were admitted to the Burn and Plastic Surgery Center of the 940th Hospital of the Joint Logistic Support Force of the PLA, including 17 males and 5 females, aged from 17 to 72 years old, with an average age of 36.4 years old. 6 cases were located in the plantar, 6 in the calf and ankle joints, 5 in the perineum, 2 in the elbow, 2 in the back and 1 in the orbit. Defect area ranged from 5 cm×4 cm to 16 cm×11 cm. Dead space ranged from 3 cm×2 cm to 10 cm×4 cm. 14 cases were repaired with free transplantation of anterolateral femoral chimeric perforator flap, 5 cases with anterolateral femoral chimeric perforator flap, 1 case with peroneal artery chimeric perforator flap, 1 case with superficial peroneal artery chimeric perforator flap, and 1 case with posterior tibial artery chimeric perforator flap.Results:In the 22 cases of this group, the flap area ranged from 6 cm×5 cm to 17 cm×12 cm, and the muscle flap area ranged from 3 cm×2 cm to 10 cm×4 cm. One case of refractory wound repaired by superficial peroneal artery perforator chimeric flap was poorly healed in the margin of the flap, which was healed by skin grafting in the second stage after dressing change. One case of refractory wound repaired by anterolateral femoral chimeric perforator flap presented subcutaneous sinus after surgery. The wound was healed after dressing change and debridement. All the other 20 cases survived well. The patients were followed up for 3-18 months, and the appearance and function of the wound were recovered satisfactorily.Conclusions:In the chimeric perforator flap with muscle flap, the muscle flap filled up the dead space and the flap covered the wound on body surface at the same time, which is one of the good methods to repair the refractory wound with deep dead space.

Objective:To investigate the clinical effect of using chimeric perforator flap with muscle flap in repairing deep dead space of refractory wound.Methods:From February 2015 to February 2019, 22 cases of refractory wounds with deep dead space were admitted to the Burn and Plastic Surgery Center of the 940th Hospital of the Joint Logistic Support Force of the PLA, including 17 males and 5 females, aged from 17 to 72 years old, with an average age of 36.4 years old. 6 cases were located in the plantar, 6 in the calf and ankle joints, 5 in the perineum, 2 in the elbow, 2 in the back and 1 in the orbit. Defect area ranged from 5 cm×4 cm to 16 cm×11 cm. Dead space ranged from 3 cm×2 cm to 10 cm×4 cm. 14 cases were repaired with free transplantation of anterolateral femoral chimeric perforator flap, 5 cases with anterolateral femoral chimeric perforator flap, 1 case with peroneal artery chimeric perforator flap, 1 case with superficial peroneal artery chimeric perforator flap, and 1 case with posterior tibial artery chimeric perforator flap.Results:In the 22 cases of this group, the flap area ranged from 6 cm×5 cm to 17 cm×12 cm, and the muscle flap area ranged from 3 cm×2 cm to 10 cm×4 cm. One case of refractory wound repaired by superficial peroneal artery perforator chimeric flap was poorly healed in the margin of the flap, which was healed by skin grafting in the second stage after dressing change. One case of refractory wound repaired by anterolateral femoral chimeric perforator flap presented subcutaneous sinus after surgery. The wound was healed after dressing change and debridement. All the other 20 cases survived well. The patients were followed up for 3-18 months, and the appearance and function of the wound were recovered satisfactorily.Conclusions:In the chimeric perforator flap with muscle flap, the muscle flap filled up the dead space and the flap covered the wound on body surface at the same time, which is one of the good methods to repair the refractory wound with deep dead space.

Objective:To investigate the correlation between food-specific IgG (sIgG) antibodies and phenotypes of chronic spontaneous urticaria (CSU) .Methods:Serum samples were collected from outpatients with active CSU, symptomatic dermographism (SD) , or acute urticaria (AU) , and healthy controls from 5 third-grade class-A hospitals such as the First Hospital of China Medical University between April 2014 and March 2015. Enzyme-linked immunosorbent assay was conducted to detect serum levels of 90 food-sIgG antibodies and total IgE, Western blot analysis to detect levels of 20 allergen-specific IgE antibodies, and chemiluminescent microparticle immunoassay to detect levels of anti-thyroid peroxidase IgG antibodies and anti-thyroglobulin IgG antibodies. Comparisons of normally distributed quantitative data between two groups and among several groups were performed by t test and one-way analysis of variance, respectively; comparisons of non-normally distributed quantitative data between two groups were performed by Mann-Whitney U test; for comparisons of proportions, chi-square test and Fisher′s exact test were used. Results:A total of 248 patients with CSU, 22 with SD, 15 with AU and 13 healthy controls were recruited. The cut-off level for sIgG positivity was 100 U/ml (at least 2+) , and the positive rate of food-sIgG antibodies was slightly higher in the patients with CSU (176/248, 70.97%) , SD (15/22, 68.18%) and AU (11/15) than in the healthy controls (7/13; χ2 = 1.80, P = 0.615) . Among the 248 CSU patients, the proportion of patients with family history of allergic diseases was significantly higher in the sIgG-positive group (71/176, 40.34%) than in the sIgG-negative group (19/72, 26.39%; χ2 = 4.30, P = 0.042) , while no significant difference was observed in the 1-day urticaria activity score (UASday) between the two groups ( Z = 0.18, P = 0.859) . Totally, 177 CSU patients completed 12- to 40-week treatment; their condition could be completely controlled by second-generation H1-antihistamines, and there was no significant difference in the required dosage of second-generation H1-antihistamines between the sIgG-positive group (128 cases) and sIgG-negative group (49 cases; Z = -1.06, P = 0.298) . Conclusions:The prevalence of family history of allergic diseases was relatively high in food-sIgG-positive patients with CSU. However, food-sIgG could not be used as an indicator to reflect the disease activity of CSU and treatment response.

OBJECTIVETo describe the long-term survival of off-pump coronary artery bypass grafting (CABG) and to analysis the risk factors of operative mortality and long-term survival.

METHODSFrom January 2001 to December 2012, 2 831 patients undergoing off-pump CABG in Peking University People's Hospital, 2 099 cases (74.1%) of them were male, the average age was (63±9) years. The perioperative data was retrospectively collected. Binary Logistic regression was used to find the risk factors which affect the operative mortality. Follow-up evaluation was completed regularly. Kaplan-Meier survival curve, Log-rank test and Cox regression model were used to find out factors which affect the long-term result.

RESULTSTotally 2 831 patients underwent isolating off-pump CABG, in whom 45 patients died perioperative, 2 786 patients discharged successfully. Binary Logistic regression showed that sex (female) (χ2=4.4, OR=2.307, P=0.035), peripheral vascular disease (χ2=17.4, OR=6.616, P=0.000), New York Heart Association (NYHA) class grade≥3 (χ2=10.5, OR=3.491, P=0.001), ejection fraction≤40% (χ2=16.9, OR=5.230, P=0.000), emergency surgery (χ2=11.9, OR=5.127, P=0.001) are risk factors of operative mortality. The follow-up time was (74±44) months. Totally 107 patients were lost from follow-up, 109 patients died in follow-up. The survival rate at 1, 3, 5 , 8 and 10 years was 97.2%, 95.5%, 94.3%, 93.6%, 92.1%, respectively. Univariate analysis showed that age (>65 years), hypertension, renal insufficiency, peripheral vascular disease, history of myocardial infarction, NYHA class grade≥3 and emergency surgery were risk factors of the long-term survival (χ2=8.150 to 88.241, P<0.05). Cox regression analysis showed that age (>65 years) (χ2=12.1, RR=2.295, P=0.000), renal insufficiency (χ2=12.3, RR=3.160, P=0.000), peripheral vascular disease (χ2=42.5, RR=5.626, P=0.000), NYHA class grade≥3 (χ2=9.1, RR=1.994, P=0.002) and emergency surgery (χ2=5.5, RR=2.247, P=0.019) were independent risk factors that affect the long-term survival.

CONCLUSIONSSex (female), peripheral vascular disease, NYHA class grade≥3, ejection fraction≤40%, emergency surgery are risk factors of operative mortality. Age (>65 years), renal insufficiency, peripheral vascular disease, NYHA class grade≥3 and emergency surgery are independent risk factors that affect the long-term survival. Off-pump CABG has favorable perioperative and long-term outcome, and it definitely is a very safe and effective technique for coronary artery revascularization.

Aged ; Cardiovascular Diseases ; Coronary Artery Bypass, Off-Pump ; mortality ; Coronary Artery Disease ; surgery ; Female ; Humans ; Kaplan-Meier Estimate ; Logistic Models ; Male ; Middle Aged ; Myocardial Infarction ; Peripheral Vascular Diseases ; Retrospective Studies ; Risk Factors ; Treatment Outcome