ObjectiveTo summarize the research progress of relationship between distal landing zone geometric and outcomes of endovascular aortic aneurysm repair (EVAR) for abdominal aortic aneurysm. MethodsThe domestic and foreign literature on the accumulation of the impact of proximal and distal landing zone geometric morphology on clinical outcomes, the evaluation methods for related complications of proximal and distal landing zones, preventive measures for adverse outcomes related to the geometric morphology of the distal landing zone, and the pathophysiological mechanisms of complications related to the distal landing zone were retrieved to make an review. ResultsThe irregular geometric morphology of the proximal landing zone was closely associated with adverse events following EVAR. The morphology of the distal landing zone was actually more complex than that of the proximal zone, and the measurement methods for its parameters were also more complicated. Common methods used in the literature for studying landing zones included the centerline distance method, the minimum distance method, and the landing area method. Primary preventive measures for adverse outcomes related to the geometry of the distal landing zone included increasing radial support force and contact area, using endostaples, and extending the landing zone. In addition to anatomical factors, the distal landing zone was also influenced by various pathophysiological factors. ConclusionsThe morphology and related pathological changes of the distal landing zone significantly impact the clinical outcomes following EVAR for abdominal aortic aneurysm. However, current research on the distal landing zone is limited. Future studies should focus on developing new technologies and methods to improve the evaluation and management of the distal landing zone, thereby reducing the complications after EVAR, enhancing the success rate of the surgery, and improving patient survival quality.
ObjectiveTo investigate the safety and effectiveness of the multi-artery graf tstrategy for coronary bypass (MICS-CABG) with small incision in the left chest, and to provide experience for the promotion of this technique.MethodsThe clinical data of 64 patients with MICS-CABG in Department of Cardiac Surgery of Peking University Third Hospital from December 2015 to November 2019 were retrospectively analyzed. There were 54 males and 10 females, aged 36-77 (61.1±8.7) years. The left lateral thoracic incision (5-8 cm) was made through the 5th intercostal incision, and the operation was performed under off-pump CABG. With the help of the chest wall suspension device and the heart fixator, the proximal anastomosis of the ascending aorta, anastomosis of the target vessels of the ?left anterior descending (LAD), left circumflex (LCX) and right coronary artery (RCA) systems were completed. The number of grafts was 2-4 (2.3±0.5) including 2 grafts in 45 patients, 3 grafts in 17 patients and 4 grafts in 2 patients. Three patients were treated with percutaneous intervention (PCI) hybridization and 62 patients were treated with total artery bypass graft. Coronary angiography was performed within 7 days after the operation to evaluate the graft patency rate. The incidence of major adverse cardiac and cerebrovascular events (MACCE) was recorded in the follow-up. The MACCE rate was calculated by Kaplan-Meier method.ResultsNone of the patients was transferred to thoracotomy and no intra-aortic balloon counterpulsation (IABP) or extracorporeal membrane oxygenation (ECMO) was used during the operation. Incision infection was in 1 patient and reoperation in 2 patients (all were postoperative hemorrhage). Within 30 days after surgery, MACCE occurred in 1 patient, including 1 patient of non-fatal myocardial infarction. The overall patency rate of angiography bypass was 96.2%, and the patency rate of anterior descending branch bypass was 98.2%. Follow-up was performed from 12 to 60 months (median follow-up time was 28 months). The loss rate was 7.8% (5/64). The incidence of MACCE was 84.9% (95%CI 79.5%-90.3%).ConclusionThe MICS-CABG can achieve completed re-vascularization and totally artery-CABG and the short-term and medium-term clinical results of the operation are good.
ObjectiveTo summarize the characteristics of the learning curve and the occurrence of postoperative adverse events during the development of unilateral biportal endoscopy (UBE) technique by comparing the clinical data of early and late patients treated with UBE technique. Methods All patients who underwent single-level UBE technique between April 1, 2020 and December 31, 2021 were selected as the research subjects. According to the surgical options, all patients were allocated into 3 groups: unilateral decompression and discectomy (UDD) group, unilateral laminotomy for bilateral decompression (ULBD) group, and lumbar intervertebral fusion (LIF) group. The first 60 cases from each group were extracted and ranked orderly. The endoscopic operation time, the times of fluoroscopy during non-internal fixation implantation, the postoperative hospital stay, the drainage volume, the decrease of hemoglobin, the decrease of hematocrit, and the adverse events were collected. In each group, the patients were allocated into early and late cases according to the operation sequence. The first 30 cases of each group were classified as early cases, and the last 30 cases as late cases. Statistical analysis was performed on the above observation indicators between the early and late cases, and a scatter plot of relevant data changes was drawn to observe the change trend. Results Compared with the early cases, the endoscopic operation time and the times of fluoroscopy during non-internal fixation implantation of late cases in each group were significantly lower (P<0.05); the postoperative hospital stay of late cases in LIF group was significantly shorter (P<0.05); the decreased values of hemoglobin and hematokrit of late cases in ULBD group and LIF group were significantly lower (P<0.05); the postoperative drainage volume of late cases in ULBD group significantly decreased (P<0.05). The endoscopic operation time and the times of fluoroscopy during non-internal fixation implantation of 3 groups showed a significant downward trend. The adverse events occurred in 3 early cases and 1 late case of the UDD group, in 6 and 3 cases of the UBLD group, and 8 and 3 cases of the LIF group, respectively. The difference was not significant between the early and late cases (P>0.05). Conclusion In the early practice of UBE technique, there is a high incidence of complication, and the surgical trauma is relatively large, which is related to the lack of understanding of the UBE technique characteristics and insufficient surgical experience. With the proficiency of surgical techniques and accumulation of experience, the operation time and the incidence of postoperative adverse events were significantly reduced.
Objective To explore the emergence agitation resulting from postoperative indwelling urethral catheters in patients of thoracic surgery.
Methods In this prospective cohort study, we recruited 140 patients who were scheduled for thoracic surgery under general anesthesia in West China Hospital from January through April 2014. These patients were divided into two groups including a control group and a trial group with 70 patients in each group. The patients in the control group had indwelled urethral catheter routinely. The catheter removed after the surgery at operation room in the trial group. Intraoperative urinary volume, emergence agitation (EA) occurrence, postoperative urinary retention, and urethral irritation were recorded.
Results There was no statistical difference in postoperative urinary retention rate between the control group and the trial group (1.43% vs. 2.86%, P=0.230). However, the urethral irritation rate in the control group was significantly higher than that in the trial group (12.86% vs. 0.00%, P=0.012) . And there was a statistical difference in adverse event rate (2.86% vs. 0.00%, P=0.039) between the two groups. There was a significantly higher incidence of urethral irritation in male patients (20.51%, 8/39) than female patients (3.23%, 1/31, P=0.033).The rate of EA in the control group was significantly higher than that in the trial group (28.57% vs. 12.86%, P=0.010). There was a significantly higher EA rate in the patients who had urethral irritation by postoperative indwelling catheters compared with those without indwelling catheters (45.00% vs. 12.86%, P=0.043).
Conclusion This study suggests that postoperative EA is a result from urethral irritation than local pain, and the EA rate can be decreased by removal of catheter before anaesthetic recovery.
Stem cell transplantation is one of the main methods to treat thromboangiitis obliterans (TAO). In recent years, research on the treatment mechanism of stem cell transplantation has made some progress. The results of a number of stem cell clinical trials specifically for TAO have been published. Some new stem cell types have gradually been used in the clinic. There is no major dispute over security. In addition, research shows that the efficacy of stem cell transplantation is affected in many ways, and some factors have a certain predictive effect on the possibility of amputation after transplantation. This paper reviews the clinical research progress of stem cell transplantation for TAO, and aims to provide some basis for the better use of stem cell transplantation in the treatment of TAO.
Using Chinese Materia Medica (CM) as injections is an innovation that is proving effective in extensive clinical use in Mainland China. However, recent reports have focused on adverse reactions, ignoring the considerable successes of these preparations. In order to achieve balance in the media and in the minds of the public, we suggest the first step is to clarify the concepts of and differences between adverse drug reactions (ADR) and adverse events (AE) for all concerned—the public, medical practitioners, government officials, and lawmakers. Second, the State Food and Drug Administration should raise the requirements for Chinese Medicine Injection (CMI) registration and license approval and emphasize the importance of evidence-based CMI development and evidence-based CMI license approval. Thirdly, drug companies and institutions should reinforce basic research about the quality control of herbs and CMI-drug interactions. Fourth, the Government should clarify the legal responsibilities for CMI approval agencies, CMI developers, medical doctors, and patients. Fifth, the medical association and Government should enhance training for health care professionals concerning the usage of CMIs. And finally sixth, State Food and Drug Administration should monitor the content and quality of the directions for use of CMI.
ObjectiveTo explore the risk factors and countermeasures of the perfusionist-related near-miss event (NME) in cardiopulmonary bypass (CPB). MethodsThe clinical data of the patients who underwent cardiac surgery in the Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University from March 2020 to July 2021 were retrospectively analyzed. According to whether NME occurred during the operation, the patients were divided into an NME group and a non-NME group. The clinical data of the two groups were compared, and the risk factors for NME were analyzed. ResultsA total of 702 patients were enrolled, including 424 males and 278 females with a median age of 56.0 years. There were 125 patients in the NME group and 577 patients in the non-NME group. The occurrence rate of NME was 17.81%. Univariate analysis showed that there were statistical differences between the two groups in the gender, body surface area, CPB time, European system for cardiac operative risk evaluation score, emergency surgery, type of surgery, night CPB initiation, modified ultrafiltration use, multi-device control, average operation time, et al. (all P<0.05). The above variables were dimensionality reduction processed by least absolute shrinkage and selection operator regression, and the λ of minimum mean square error of 10-fold cross validation was 0.014. The variables of the corresponding model were selected as follows: multi-device control, night CPB initiation, minimum hematocrit, modified ultrafiltration use, CPB time. The results of multivariate logistic regression showed that night CPB initiation [OR=9.658, 95%CI (4.735. 19.701), P<0.01] and CPB time [OR=1.003, 95%CI (1.001, 1.006), P=0.014] were independent risk factors for NME. ConclusionNight CPB initiation and CPB time are independent risk factors for NME during CPB, which should be recognized and early warned in clinical work.
ObjectiveTo explore low-seniority nurses' attitudes regarding adverse events reporting.
MethodA total of 200 low-seniority nurses were investigated with the Chinese version of Reporting of Clinical Adverse Events Scale from October to December 2013. Epidata software was used to collect and manage data and SPSS 17.0 software was applied to analyze the collected data.
ResultsThe nurses who once witnessed or experienced adverse events accounted for 76%, of whom 74.3% reported adverse events. The mean score of reporting of clinical adverse events among low-seniority nurses was 48.5±7.2. Age was positively associated with the global scores of reporting of clinical adverse events, when compared with other variables (r=0.20, P=0.01).
ConclusionsOverall, low-seniority nurses' attitudes toward reporting adverse events are negative. Age is positively associated with attitudes toward reporting adverse events. Therefore, a non-punitive culture should be established and an efficient reporting system is good to enhance the quality of care.
