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        west china medical publishers
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        find Keyword "dissection" 284 results
        • TRANSPOSITIONAL ANASTOMOSIS OF C7 POSTERIOR ROOT AND SPINAL ACCESSORY NERVE TO RECONSTRUCT THE TRAPEZIUS MUSCLE FUNCTION

          Objective To introduce a new approach of neurotization to treatment of the shoulder syndrome after the radical neck dissection by using transpositional anastomosis of C7 posterior root and the spinal accessory nerve to reconstruct the function of trapezius muscle. Methods From March 1999 to February 2001, 10 patients underwent the neurotization during the radical neck dissection. In the operation, the apo-cranial part of spinal accessory nerve was preserved from the trapezius muscle (gt;3.0 cm in length) and anastomosed to C7 posterior root. Objective physical examinations and electromyography were conducted before and after operation.One, 6 and 12 months after operation the trapezius muscle function after the transpositional anastomosis was evaluated. Results One, 6 and 12 months after operation, the recovery rates of each part were as follows: 9.8%, 68.9% and 73.5% in upper part; 4.7%, 73.6% and 69.4% in middle part; and 6.2%, 70.5% and 70.3% in lower part. The range of abduction motion of upper arm in 7 cases (70%) exceeded 90°. The mean maximal abduction angle was more than 95°. Evaluation of the shoulder function showed that myoatrophy was mild and the disability of abduction was classified as grade Ⅱ in 7 cases and grade Ⅲ in 3 cases. Conclusion Transpositional anastomosis of the C7 posterior root to thespinal accessory nerve after radical neck dissection can well reconstruct the function of trapezius muscle. This approach provides a wide indication in comparison with the functional neck dissection without impairment of arm function afterthe cutting of C7.

          Release date:2016-09-01 09:28 Export PDF Favorites Scan
        • ADVANCES IN CLINICAL APPLICATION OF LYMPH NODE DISSECTION FOR GASTRIC CANCER

          Objective To provide a current language for clinical and pathological discription of gastric cancer. Methods The literature in recent years on the distribution of lymph nodes and staging of gastric cancer were reviewed. Results The lymph nodes of gastric cancer are distributed near the blood vessel and organs of gastric milieu. To ensure radical gastrectomy rational and scientific, the anatomic structure of gastric milieu should be familiarized. Conclusion The excellent outcome of surgery will be achieved by the effective dissection and removel of lymph nodes in gastric cancer.

          Release date:2016-09-08 02:00 Export PDF Favorites Scan
        • Relationship between Subcarinal Lymph Node Metastasis and Clinicopathological Characteristics of Non-small Cell Lung Cancer

          Abstract: Objective To analyze the modes and rules of subcarinal lymph node metastasis in non-small cell lung cancer patients, and explore appropriate surgical dissection strategy of subcarinal lymph nodes for patients with non-small cell lung cancer. Methods The clinical data of 608 patients with non-small cell lung cancer who underwent lung resection  and systematic lymph node dissection in Henan Cancer Hospital from September 2002 to October 2011 were analyzed  retrospectively. There were 388 males and 220 females with an average age of 62.3 (45-78) years. There were 122 patients with left upper lobe tumor, 119 patients with left lower lobe tumor, 158 patients with right upper lobe tumor, 40 patients with right middle lobe tumor and 169 patients with right lower lobe tumor. Subcarinal lymph node metastasis was observed in 118 patients (19.4%). There were 244 patients with squamous carcinoma, 285 patients with adenocarcinoma and 79  patients with other types of carcinoma. The relationship of subcarinal lymph node metastasis with tumor location, pathological types and clinicopathological characteristics were analyzed. Results There was statistical difference in subcarinal  lymph node metastasis rate among different tumor locations (P=0.000). Subcarinal lymph node metastasis rate was the highest [45.8% (54/118)] in patients with right lower lobe tumor. For patients with different pathological types, subcarinal lymph node metastasis rate was the highest [55.9% (66/118)] in patients with adenocarcinoma, and then squamous carcinoma (P=0.034). Subcarinal lymph node metastasis rate increased with the increase in T staging, and patients with tumors  located in the middle or lower lobe of the left or right lung had a significantly higher subcarinal lymph node metastasis rate than patients with upper lobe tumor. Conclusion Subcarinal lymph node metastasis rate are lower in patients with left or right upper lobe tumor, patients with squamous carcinoma whose clinical T staging is within cT 1 .

          Release date:2016-08-30 05:28 Export PDF Favorites Scan
        • Research Progress in Multidetector-row Computed Tomographic Presentations and Their Anatomic-pathologic Features of Aortic Dissection after Endovascular Graft Exclusion or Combined Surgical and Endovascular Treatment

          With the development of radiologic intervention, the treatments of aortic dissection are getting more and more diversified. In recent years, Debakey Ⅲ and DebakeyⅠaortic dissection has been usually treated with endovascular graft exclusion, or combined surgical and endovascular treatment. It is therefore more important to evaluate the aorta and its complications after interventional treatments. Because multidetector-row computed tomography (MDCT) has advantages, such as short examination time, high spatial resolution, and simple operation, this modality has become a first choice of non-invasive methods for the follow-up of aortic diseases after the intervention. Now the MDCT presentations and their anatomic-pathologic features of aortic dissection after endovascular graft exclusion or combined surgical and endovascular treatment are reviewed in this article.

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        • Clinical effect of in vitro fenestration on reconstruction of left subclavian artery in endovascular treatment of aortic dissection

          ObjectiveTo investigate the effect of in vitro fenestration on reconstruction of left subclavian artery in endovascular treatment of aortic dissection.MethodsA total of 89 patients with aortic dissection involving left subclavian artery were treated by endovascular treatment in the Second Affiliated Hospital of Fujian Medical University from February 2017 to January 2020. There were 44 patients in the test group, including 36 males and 8 females, with an average age of 58.02±13.58 years. There were 45 patients in the control group, including 35 males and 10 females, with an average age of 54.10±12.32 years. The left subclavian artery was reconstructed by in vitro fenestration in the test group and by chimney technique in the control group. The clinical data were compared between the two groups.ResultsThe operation time of the test group was longer than that of the control group (126.16±7.53 min vs. 96.49±6.52 min, P<0.01). The median follow-up time was 31 (13-48) months. The incidence of endoleak in the test group (4.7%) was lower than that in the control group (18.6%, P=0.04) during the follow-up. There was no statistical difference in the incidence of stroke, myocardial infarction, false lumen thrombosis, retrograde aortic dissection or left subclavian artery occlusion between the two groups (P>0.05).Conclusion In vitro fenestration for reconstructing left subclavian artery in thoracic endovascular aortic repair of aortic dissection is safe and feasible, which is worthy of further clinical promotion.

          Release date:2023-03-01 04:15 Export PDF Favorites Scan
        • Emergency Operation at Midnight Does Not Increase In-hospital Mortality in Patients with Acute Aortic Dissection

          Objective To compare surgical outcomes of Stanford type A acute aortic dissection between operations at midnight and daytime. Methods From January 2004 to March 2013,195 patients with Stanford type A acute aortic dissection received surgical treatment in Nanjing Hospital Affiliated to Nanjing Medical University (Nanjing Cardiovascular Disease Hospital). Patients with identical or similar propensity scores were matched from 127 patients who underwent emergency operation at daytime and 68 patients who underwent emergency operation at midnight. A total of 58 pairs of matched patients which had the same or similar propensity score were selected in daytime surgery group (n=58,43 males and 15 females,47.7±14.6 years) and midnight surgery group (n=58,45 males and 13 females,48.3±14.6 years). Operation time,postoperative chest drainage,mechanical ventilation time,postoperative incidence of dialysis and tracheostomy,length of ICU stay and in-hospital mortality were compared between the daytime group and midnight group. Results A total of 58 pair of patients were matched in this study. There was no statistical difference in postoperative incidence of tracheostomy [19.0% (11/58) vs. 6.9% (4/58),P=0.053] or in-hospital mortality [8.6% (5/58) vs. 6.9%(4/58),P=0.729] between the midnight group and daytime group. Operation time (485.7±93.5 minutes vs. 428.5±123.3 minutes,P=0.048),postoperative chest drainage (979.5±235.7 ml vs. 756.6±185.9 ml,P=0.031),mechanical ventilation time (67.9±13.8 hours vs. 55.7±11.9 hours,P=0.025),postoperative incidence of dialysis [17.2% (10/58) vs. 5.2%(3/58),P=0.039] and length of ICU stay (89.4±16.2 hours vs. 74.8±12.5 hours,P=0.023) of the midnight group weresignificantly longer or higher than those of the daytime group. A total of 107 patients were followed up for 4-6 months after discharge. During follow-up,there was no late death. Among the 13 patients who required postoperative dialysis,12 patientsno longer needed regular dialysis. Conclusion Emergency operation at midnight does not increase in-hospital mortalitybut increase some postoperative morbidity in patients with Stanford type A acute aortic dissection. Whether at midnight or daytime,better preoperative preparation and surgeons’ vigor are needed for timely surgical treatment for patients with Stanford type A acute aortic dissection.

          Release date:2016-08-30 05:47 Export PDF Favorites Scan
        • Clinical Analysis on Perioperative Death of Endovascular Repair for Acute Aortic Dissection

          Objective To analyze the reasons for the perioperative death of endovascular repair of acute aortic dissection (AD). Methods The clinical data of 176 patients with acute AD and received endovascular repair from July 2001 to October 2012 were analyzed retrospectively. Results Among 176 patients with acute AD, 8 patients died during perioperatively, received endovascular repair in 1-5 days after admission (mean 2.4 d), and all of them admitted before 2008. Two cases were type A and 6 cases were type B. All cases with hypertension and 3 cases with pleural effusion. Three cases died on the day of operation, among them 2 cases occurred in 1 h after operation, the other 1 case occurred in 2 h after operation. Four cases died in 2 days after operation and 1 case died in 4 days after operation. Four cases died of rupture of the aortic dissection, 2 cases died of cerebral infarction, 1 case died of multiple organ failure, and 1 case died of gastrointestinal bleeding. Conclusion To avoid performing endovascular repair during the acute phase and improving operation skills may help to avoid the occurrence of perioperative death.

          Release date:2016-09-08 10:24 Export PDF Favorites Scan
        • Extracorporeal membrane oxygenation for post-aortic surgery: A retrospective study in a single center

          ObjectiveTo describe the outcomes of extracorporeal membrane oxygenation (ECMO) for patients after aortic surgery and to summarize the experience. Methods The clinical data of patients who received ECMO support after aortic surgery in Fuwai Hospital from 2009 to 2020 were retrospectively analyzed. The patients who received an aortic dissection surgery were allocated into a dissection group, and the other patients were allocated into a non-dissection group. The in-hospital and follow-up survival rates were compared between the two groups, and the causes of death were analyzed. ResultsA total of 22 patients were enrolled, including 17 patients in the dissection group [13 males and 4 females, with a median age of 54 (46, 61) years] and 5 patients in the non-dissection group [3 males and 2 females, with a median age of 51 (41, 65) years]. There was no statistical difference in the age and gender between the two groups (P>0.05). The in-hospital survival rate (11.8% vs. 100.0%, P=0.001) and follow-up survival rate (11.8% vs. 80.0%, P=0.009) of the patients in the dissection group were significantly lower than those in the non-dissection group. The causes of death in the dissection group included massive bleeding and disseminated intravascular coagulation (3 patients), ventricular thrombosis (1 patient), irreversible brain injury (2 patients), visceral malperfusion syndrome (4 patients) and irreversible heart failure (5 patients). ConclusionECMO after aortic dissection surgery is associated with high mortality, which is related to the pathological features of aortic dissection and severely disrupted coagulation system after the surgery. For these patients, strict indication selection and optimal management strategy are important.

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        • A feasibility study on breast cancer patients with 1–2 positive sentinel lymph nodes to avoid axillary lymph node dissection

          Objective To explore the feasibility of breast cancer patients in China with 1–2 positive sentinel lymph nodes (SLN) to avoid axillary lymph node dissection (ALND). Methods A total of 328 patients who received sentinel lymph node biopsy (SLNB) in our hospital from 2010 to 2016 were collected retrospectively, and patients met the criteria of Z0011 clinical trials (which required no acceptance of neoadjuvant therapy, clinical tumor size was in T1/T2 stage, two or less positive SLNs were detected, received breast-conservation surgery, acceptance of whole breast radiotherapy after surgery and neoadjuvant systemic treatment) were enrolled to breast-conservation group. Patients met the criteria of Z0011 clinical trials, excepting the surgery (received non-breast-conservation surgery), were enrolled to non- breast-conservation group. Comparison of clinicopathological features between the breast-conservation group/non-breast-conservation group and the Z0011 ALND group was performed. Results Among the 328 patients, only 29 patients (8.8%) completely correspond with the results of Z0011 clinical trials. There was no statistical significance between the breast-conservation group and the Z0011 ALND group in the age, clinical T stage, expression of estrogen (ER), expression of progesterone (PR), pathological type, histological grade, number of positive lymph nodes, and incidence of non-sentinel node metastasis (P>0.05). A total of 81 patients were included in the non-breast-conservation group. It showed no statistical significance between the non-breast-conservation group and the Z0011 ALND group in expressions of ER and PR, and histological grade (P>0.05), while there was statistically significant difference in age, clinical T stage, pathological type,number of positive lymph nodes, and incidence of non-sentinel node metastasis (P<0.05). Patients in the non-breast-conservation group showed a lower age, higher percentage of lobular carcinoma and T2 stage, more positive lymph nodes, and high incidence of non-sentinel node metastasis. Conclusion It’s feasible for Z0011 clinical trials results to be used in the clinical practice of our country, but the actual situation of breast conservation in our country may lead to low adaptive population.

          Release date:2017-09-18 04:11 Export PDF Favorites Scan
        • Mortaligy risk prediction models for acute type A aortic dissection: a systematic review

          ObjectiveTo systematically review mortality risk prediction models for acute type A aortic dissection (AAAD). MethodsPubMed, EMbase, Web of Science, CNKI, WanFang Data, VIP and CBM databases were electronically searched to collect studies of mortality risk prediction models for AAAD from inception to July 31th, 2021. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies. Systematic review was then performed. ResultsA total of 19 studies were included, of which 15 developed prediction models. The performance of prediction models varied substantially (AUC were 0.56 to 0.92). Only 6 studies reported calibration statistics, and all models had high risk of bias. ConclusionsCurrent prediction models for mortality and prognosis of AAAD patients are suboptimal, and the performance of the models varies significantly. It is still essential to establish novel prediction models based on more comprehensive and accurate statistical methods, and to conduct internal and a large number of external validations.

          Release date:2021-12-21 02:23 Export PDF Favorites Scan
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