Microstructural morphology and visual acuity outcome in eyes with epiretinal membrane before,during,and after membrane peeling in intraoperative optical coherence tomography assisted macular surgery

AIM:To measure the difference of intraoperative central macular thickness(CMT)before,during,and after membrane peeling and investigate the influence of intraoperative macular stretching on postoperative best corrected visual acuity(BCVA)outcome and postoperative CMT development.METHODS:A total of 59 eyes of 59 patients who underwent vitreoretinal surgery for epiretinal membrane was analyzed.Videos with intraoperative optical coherence tomography(OCT)were recorded.Difference of intraoperative CMT before,during,and after peeling was measured.Pre-and postoperatively obtained BCVA and spectral-domain OCT images were analyzed.RESULTS:Mean age of the patients was 70±8.13y(range 46-86y).Mean baseline BCVA was 0.49±0.27 log MAR(range 0.1-1.3).Three and six months postoperatively the mean BCVA was 0.36±0.25(P=0.01 vs baseline)and 0.38±0.35(P=0.08 vs baseline)log MAR respectively.Mean stretch of the macula during surgery was 29%from baseline(range 2%-159%).Intraoperative findings of macular stretching did not correlate with visual acuity outcome within 6mo after surgery(r=-0.06,P=0.72).However,extent of macular stretching during surgery significantly correlated with less reduction of CMT at the fovea centralis(r=-0.43,P<0.01)and 1 mm nasal and temporal from the fovea(r=-0.37,P=0.02 and r=-0.50,P<0.01 respectively)3mo postoperatively.CONCLUSION:The extent of retinal stretching during membrane peeling may predict the development of postoperative central retinal thickness,though there is no correlation with visual acuity development within the first 6mo postoperatively.

New classification system for radical rectal cancer surgery based on membrane anatomy

BACKGROUND Total mesorectal excision along the“holy plane”is the only radical surgery for rectal cancer,regardless of tumor size,localization or even tumor stage.However,according to the concept of membrane anatomy,multiple fascial spaces around the rectum could be used as the surgical plane to achieve radical resection.AIM To propose a new membrane anatomical and staging-oriented classification system for tailoring the radicality during rectal cancer surgery.METHODS A three-dimensional template of the member anatomy of the pelvis was established,and the existing anatomical nomenclatures were clarified by cadaveric dissection study and laparoscopic surgical observation.Then,we suggested a new and simple classification system for rectal cancer surgery.For simplification,the classification was based only on the lateral extent of resection.RESULTS The fascia propria of the rectum,urogenital fascia,vesicohypogastric fascia and parietal fascia lie side by side around the rectum and form three spaces(medial,middle and lateral),and blood vessels and nerves are precisely positioned in the fascia or space.Three types of radical surgery for rectal cancer are described,as are a few subtypes that consider nerve preservation.The surgical planes of the proposed radical surgeries(types A,B and C)correspond exactly to the medial,middle,and lateral spaces,respectively.CONCLUSION Three types of radical surgery can be precisely defined based on membrane anatomy,including nerve-sparing procedures.Our classification system may offer an optimal tool for tailoring rectal cancer surgery.

Clinical outcome of combined conjunctival autograft transplantation and amniotic membrane transplantation in pterygium surgery

AIM： To compare long-term outcome of primary and recurrent pterygium surgery with three different techniques： combined conjunctival autograft and overlay amniotic membrane transplantation （CAT with AMT）, conjunctival autograft transplantation （CAT） alone and amniotic membrane transplantation （AMT） alone. METHODS： In this retrospective study, 142 eyes of 142 pterygium patients （104 primary, 38 recurrent）who underwent CAT （group A）, AMT （group B） or CAT with AMT （group C） respectively following surgical excision were reviewed and compared based on the recurrences and post-operative complications. RESULTS： The number of recurrence post-surgery were 17 （9 from primary, 8 from recurrent; the same description below）, 18 （10, 8） and 2 （1, 1） in groups A, B, and C respectively; dry eyes were 22 （16, 6）, 27 （18, 9） and 7 （3, 4）; conjunctival inflammations were 30 （17, 13）, 27 （16, 11） and 11 （6, 5）. Patients in group C （either pdmary or recurrent or both） mainly showed significantly better results than those in group A or B （P〈0.05） regarding above-mentioned clinical effects. CONCLUSION： Combined CAT and overly AMT have significantly lower rates of recurrence and postoperative complications for primary and recurrent pterygium surgery than CAT or AMT alone.

Homemade lyophilized cross linking amniotic sustained-release drug membrane with anti-scarring role after filtering surgery in rabbit eyes

AIM: To investigate the antifibrotic effect of the freeze-dried bilayered fibrin-binding amniotic membrane as a drug delivery system on glaucoma surgery in rabbit model. The aim of this study was to prepare a novel local delivery system for the sustained and controllable release of 5-Fu. METHODS: Twenty-four Japanese white rabbits were randomized into three groups: the experimental group (ocular trabeculectomy in combination with 5-Fu loaded freeze-dried bilayered fibrin-binding amniotic membrane transplantation), the control group (ocular trabeculectomy in combination with 5-Fu) and the blank group (single trabeculectomy). HE staining, massion staining and immunohistochemistry for alpha -SMA were performed on days 7, 14, 21 and 30 following surgery. The concentration of 5-Fu in rabbit aqueous humor was examined by high performance liquid chromatography (HPLC) 3 days after the surgery. RESULTS: Statistical differences were noted in intraocular pressure among groups on day 7, 14, 21 and 30 following surgery. Histology further demonstrated that trabeculectomy in combination with freeze-dried bilayered fibrin-binding amniotic membrane yielded well wound healing and no scar formation and was beneficial for long term effect. CONCLUSION: HPLC showed a good slow-release effect with freeze-dried bilayered fibrin-binding amniotic membrane.

Severe prelenticular membrane formation on the surface of a hydrophilic acrylic intraocular lens after cataract surgery in an eye with an Ahmed valve implant

【正】Dear Sir,Iam Yong-Sun Ahn,from the Department of Ophthalmology of St.Vincent Hospital of Suwon,Kyungki-do,South Korea.Cataracts are a common problem in eyes with a glaucoma drainage device(GDD),because tube shunt surgery increases the incidence and progression of cataracts[1].An Ahmed valve,the most commonly inserted GDD,is composed of a silicone tube connected to a flat plate sewn to the sclera,and aqueous humor flows from the

Arthroscopic surgery for synovial chondroma of the subacromial bursa with non-traumatic shoulder subluxation complications:Two case reports

BACKGROUND Synovial chondromatosis is a disease originating from the synovium and characterized by the presence of metaplastic cartilaginous nodules in synovial cavities.The exact prevalence of synovial chondromatosis remains unknown,and the involvement of the shoulder joint is very rare.Synovial chondromatosis accompanied by subluxation of the humeral head without a history of trauma is rarely encountered,and to our knowledge,no published reports describe this condition.CASE SUMMARY We present two cases of synovial chondromatosis in the shoulder joint,accompanied by subluxation of the humeral head,in two arthroscopically managed adult patients.We performed arthroscopic labrum fixation and removal of the loose body from the shoulder joint.To identify primary and secondary categories,pathological analysis was arranged.Clinical and radiographic evaluations at the 1-mo follow-up were satisfactory.CONCLUSION The biomechanical function of the shoulder joint requires attention,especially following the detection of loose bodies,as observed with synovial chondroma occurring in rare sites.Arthroscopic management is successful in patients with synovial chondromatosis combined with shoulder subluxation.

Complications of Fibrin Glue in Pterygium Surgery with Amniotic Membrane Transplant

Purpose:To compare the complications and the recurrence rate between fibrin glue (TISSEEL) and Vicryl 8-0 sutures in amniotic membrane transplant during pterygium surgery.Methods:Patients who underwent pterygium surgery with amniotic membrane transplant (AMT) in the Wang Eye Clinic (Doraville,USA).were randomly categorized into two groups:one group received TISSEEL and the other group received Vicryl 8-0 sutures.All procedures for both groups were performed by one ophthalmologist.Twenty-four patients (24 eyes) participated in the TISSEEL group (22 eyes with primary surgery and 2 eyes with surgery for recurrence) and 19 patients (19 eyes) took part in the suture group (18 primary eyes and 1 recurrence).The patients with recurrent pterygium in both groups had not received AMT previously.Post-operatively,patients were followed up for one week and then one year to check for any signs of complications and recurrence.Results:Conjunctival inflammation occurred in 3 eyes (12.5%) in the TISSEEL group,and 6 eyes (31.6%) in the suture group.(P<0.05,Chi-square test).In the TISSEEL group,1 eye (4.2%) showed recurrence,while there were no recurrences in the sutures group.There were 3 dry eyes (15.8%) in the suture group and 2 dry eyes (8.3%) in the TISSEEL group (P>0.05).No dislocated conjunctival grafts,Dellen,inflammation,infection,bleeding,pyogenic granuloma,or scleromalacia was observed in either group.Conclusion:Pterygium surgery with AMT had less conjunctival inflammation and dry eye in patients receiving fibrin glue than those with Vicryl 8-0 sutures.

Veno-Venous Extracorporeal Membrane Oxygenation for Acute Lung Injury after Surgery for Aortic Dissection: A Case Report

Acute respiratory failure after surgery for aortic dissection is a serious complication that has been associated with increased mortality and morbidity. Veno-venous (VV) extracorporeal membrane oxygenation (ECMO) is reported as one of the treatments for this life-threatening complication. A 78-year-old male patient was admitted to our hospital for Stanford type A acute aortic dissection. He underwent emergency replacement of the ascending aorta, after which he developed acute lung injury. It was difficult to maintain oxygenation with a respirator mask. Therefore, VV-ECMO was initiated on postoperative day 1. The oxygenation gradually improved, and VV-ECMO was continued until postoperative day 13. On postoperative day 25, mechanical ventilation was withdrawn. The patient was discharged from the hospital on postoperative day 149. We report a case of successful treatment of acute lung injury with VV-ECMO initiated after surgery for aortic dissection. VV-ECMO can be considered as a treatment option for severe acute lung injury after surgery for aortic dissection.

Extra-corporeal membrane oxygenation in aortic surgery and dissection: A systematic review

BACKGROUND Very little is known about the role of extracorporeal membrane oxygenation(ECMO)for the management of patients undergoing major aortic surgery with particular reference to aortic dissection.AIM To review the available literature to determine if there was any evidence.METHODS A systematic literature search through PubMed and EMBASE was undertaken according to specific key words.RESULTS The search resulted in 29 publications relevant to the subject:1 brief communication,1 surgical technique report,1 invited commentary,1 retrospective case review,1 observational study,4 retrospective reviews,13 case reports and 7 conference abstracts.A total of 194 patients were included in these publications of whom 77 survived.CONCLUSION Although there is no compelling evidence for or against the use of ECMO in major aortic surgery or dissection,it is enough to justify its use in this patient population despite current adverse attitude.

Synovial lipomatosis: A rare cause of knee pain in an adolescent female

Synovial lipomatosis is a benign proliferative disease of the subsynovial adipose which can lead to a variety of presentations. Cases of synovial lipomatosis in children or adolescents are rare. This case report describes an adolescent patient with a rare bilateral presentation of synovial lipomatosis. She had been treated for years prior to her presentation for juvenile idiopathic arthritis. She presented with chronic bilateral knee pain, swelling, and mechanical symptoms. Bilateral MR imaging demonstrated effusions, hypertrophy of the synovium, and polyp-like projections of tissue with the same signal intensity as fat which is pathognomonic for synovial lipomatosis. Arthroscopic synovectomy and extensive debridement of polyp like fat projections of the right knee was performed. Histopathology was consistent with the synovial lipomatosis diagnosis. Postoperatively, the patient was satisfied with her outcome with improved pain relief and function in her right knee.

SYNOVIAL SARCOMA IN CHILDHOOD:CLINICAL AND RADIOLOGICAL FINDINGS

Objective: To study the clinical characteristics and radiological features of synovial sarcoma in childhood and its relation to the diagnosis and treatment. Methods: The clinical radiological features of 15 children with synovial sarcoma proved surgically and pathologically were analyzed. Results: In children, the tumor boundaries are poorly defined due to paucity of fat, and metastasis usually occurs early. Eight patients in this series had bone involvement, including: direct erosion by tumor causing cortical destruction, indirect pressure defect with sharp margin and reactive bone sclerosis and bone destruction of the primary intraosseous synovial sarcoma. Conclusion: The tumor is often misdiagnosed, the final confirmed diagnosis must be made by histological examination with imaging findings. It is emphasized that the patients should be treated with radiotherapy and chemotherapy preoperatively and postoperatively.

Study of synovialization of non-synovial tendon and its significance

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A simple new technique for the induction of residual posterior vitreous cortex removal and membrane peeling

AIM:To describe a quick,cost-effective alternative to using a scraper to remove the residual posterior vitreous cortex and create an inner limiting membrane(ILM)flap during vitrectomy.METHODS:The surgical technique and a retrospective interventional single-center series of cases were described.A hook was made on the tip of a conventional syringe needle(outer diameter,0.6 mm;23 gauge)by bending the needle against a plate.We used this hook to remove the residual posterior vitreous cortex and create an ILM flap during vitrectomy.The efficacy and safety of using this instrument in ophthalmological procedures for a variety of vitreoretinal disorders were evaluated.RESULTS:The hook was effective for removing focal or diffuse residual posterior vitreous cortex in eyes with rhegmatogenous retinal detachment,proliferative diabetic retinopathy,and pathological myopia.It was also successfully used to make a free edge of the ILM and help strip the epiretinal membrane.There were no serious complications associated with using the hook in delicate ophthalmological procedures.CONCLUSION:The hook,made by bending a conventional needle,is a simple and cost-effective instrument for removing residual posterior vitreous vortex and to create epiretinal and ILM flaps during vitrectomy in eyes with various vitreoretinal diseases.

Veno-Venous Extra-Corporeal Membrane Oxygenation (ECMO) in a Child with Hemoptysis and Fontan Circulation

Background: Extracorporeal membrane oxygenation is a rescue life support technique used in life threatening conditions of refractory respiratory and/or cardiac distress. Indication for extracorporeal life support in children depends on age and varies from pulmonary to cardiac pathologies. In some cases, it may be used as a bridge to a therapeutic procedure. We described here the management of respiratory failure due to hemoptysis in a child with a Fontan circulation and veno-venous extracorporeal membrane oxygenation which served as a bridge to angio-embolization. Hemoptysis can be a life threatening condition which can lead to hypovolemic shock and impaired alveolar gas exchange. The latter can result in respiratory failure and consequent asphyxia. When hemoptysis occurs in a patient with a univentricular heart and a Fontan circulation, management of this clinical situation can be challenging due to the particular physiology of the latter. Total cavopulmonary connection is a palliative surgical repair which constitutes Fontan circulation as a definitive treatment in patients with a univentricular heart. Methods: Case report description of a 16 year-old boy with a univentricular heart and a Fontan circulation who presented hemoptysis managed with a veno-venous extracorporeal membrane oxygenation (ECMO) as a bridge to angio-embolization. Results: Hemoptysis due to diffuse intra-alveolar hemorrhage from collateral circulation was successfully treated in this young patient with pulmonary vascular embolization. This allowed to wean the patient from extra-corporeal membrane oxygenation. Conclusion: Veno-venous ECMO can be life-saving as a bridge to angio-embolization for severe hemoptysis in patients with Fontan circulation. The reported case allows to underline that our multidisciplinary approach in this complex pediatric patient surely participated to improve outcome.

Survival of a patient who received extracorporeal membrane oxygenation due to postoperative myocardial infarction: A case report

BACKGROUND Cardiac arrest after noncardiac surgery is a dangerous complication that may contribute to mortality.Because of the high mortality rate and many complications of cardiac arrest,it is very important to identify and correct a reversible etiology early.By reporting the treatment process of this case,we aimed to broaden the diagnosis and treatment of cardiac arrest after noncardiac surgery and describe how cardiopulmonary resuscitation using extracorporeal membrane oxygenation(ECMO)can improve a patient’s chance of survival.CASE SUMMARY A 69-year-old man visited our hospital complaining of low back pain on July 12,2021.Magnetic resonance imaging showed lumbar disc herniation.Two hours after lumbar disc herniation surgery,the patient developed cardiac arrest.Cardiopulmonary resuscitation was performed,and ECMO was started 60 min after the initiation of cardiopulmonary resuscitation.Regarding the etiology of early cardiac arrest after surgery,acute myocardial infarction and pulmonary embolism were considered first.Based on ultrasound evaluation,acute myocardial infarction appeared more likely.Coronary angiography confirmed occlusion of the left anterior descending branch,and coronary artery stenting was performed.Pulmonary artery angiography was performed to exclude pulmonary embolism.Due to heparinization during ECMO and coronary angiography,there was a large amount of oozing blood in the surgical incision.Therefore,heparinfree ECMO was performed in the early stage,and routine heparinized ECMO was performed after hemorrhage stabilization.Eventually,the patient was discharged and made a full neurologic recovery.CONCLUSION For early postoperative cardiac arrest,acute myocardial infarction should be considered first,and heparin should be used with caution.

膝骨关节炎患者滑膜与关节液中Notch通路相关蛋白变化的意义

目的探讨膝关节骨关节炎(knee osteoarthritis,KOA)患者滑膜与关节液中Notch通路相关蛋白(Notch1、Notch3、Jagged1、Jagged2、Hes5)的变化水平及意义。方法选取2021年1月至2022年12月重庆医科大学附属大足医院收治的80例膝关节骨关节炎(knee osteoarthritis,KOA)患者为研究对象(KOA组),另选取同期医院收治的30例半月板损伤患者为对照(对照组)。采用Kellgren-Lawrence(K-L)分级及Lequesne MG量表评价KOA病情严重程度。分别采用酶联免疫吸附试验、免疫组织化学染色检测关节液及滑膜组织中Notch1、Notch3、Jagged1、Jagged2、Hes5表达水平。用受试者工作特征(receiver operating characteristic,ROC)曲线对Notch1、Notch3、Jagged1、Jagged2、Hes5诊断KOA的价值进行分析。结果KOA组关节液和滑膜组织中Notch1、Notch3、Jagged1、Jagged2、Hes5表达水平均高于对照组,差异均有统计学意义(P<0.05)。K-L分级越高,关节液和滑膜组织中Notch1、Notch3、Jagged1、Jagged2、Hes5表达水平越高(P<0.05)。KOA患者关节液和滑膜组织中的Notch1、Notch3、Jagged1、Jagged2、Hes5表达水平分别均与Lequesne MG量表评分呈正相关(P<0.05)。关节液中Notch1、Notch3、Jagged1、Jagged2、Hes5对KOA诊断的曲线下面积(area under curve,AUC)分别为0.563、0.786、0.600、0.453、0.543,5指标联合的AUC为0.710;滑膜组织中Notch1、Notch3、Jagged1、Jagged2、Hes5对KOA诊断的AUC分别为0.467、0.671、0.572、0.551、0.456,5指标联合的AUC为0.787;将关节液、滑膜组织中Notch1、Notch3、Jagged1、Jagged2和Hes5共同进行联合,AUC为0.845。结论KOA患者滑膜及关节液中Notch通路发生异常变化,Notch通路相关蛋白(Notch1、Notch3、Jagged1、Jagged2、Hes5)的检测有助于诊断KOA并评估病情严重程度。

保留二尖瓣瓣下结构二尖瓣膜置换手术对心功能、瓣膜功能的影响及并发症

目的探讨保留二尖瓣瓣下结构二尖瓣膜置换手术对心功能、瓣膜功能及并发症的影响。方法选取2019年8月至2022年7月在苏州大学附属第一医院行保留二尖瓣瓣下结构二尖瓣膜置换手术患者84例作为观察组,同时选取同期未保留二尖瓣瓣下结构二尖瓣膜置换手术患者68例作为对照组,比较两组手术指标和并发症,以及手术前后心功能指标、二尖瓣口血流动力学参数。结果观察组和对照组手术时间、体外循环时间、主动脉阻断时间、术后机械通气时间、ICU滞留时间和术后住院时间比较差异无统计学意义(P>0.05);观察组术后1、3和6个月时左室收缩末期内径(LVESD)、左室舒张末期内径(LVEDD)明显低于对照组(P<0.05),左室短轴缩短率(LVFS)明显高于对照组(P<0.05);观察组和对照组术后1、3和6个月时左室射血分数(LVEF)比较差异无统计学意义(P>0.05);观察组和对照组术后1、3和6个月时二尖瓣口峰值流速(Vmax)、最大跨瓣压差(PGmax)和平均跨瓣压差(PGmean)比较差异无统计学意义(P>0.05);观察组和对照组术后1、3和6个月时肌酸激酶同工酶(CK-MB)和N末端前体脑利钠肽(NT-proBNP)比较差异无统计学意义(P>0.05);观察组和对照组术后并发症发生率比较差异无统计学意义(P>0.05)。结论保留二尖瓣瓣下结构二尖瓣膜置换手术有助于心脏结构保护、改善患者心功能,同时与不保留二尖瓣瓣下结构手术相比,二尖瓣口血流参数及并发症无明显差异。

miR-34a-5p/PLCD3轴调控骨关节炎进展的机制

背景:目前已有针对miRNA/mRNA轴调节骨关节炎疾病进程的分子机制研究。先前生物信息学研究发现具有临床预测价值的mRNA(磷脂酶Cδ3:phospholipase C delta 3,PLCD3)及其靶向miRNA(miR-34a-5p),尚缺实验验证其调控骨关节炎的具体作用及机制。目的:探讨miR-34a-5p/PLCD3轴对骨关节炎进展的调控作用及机制。方法:选择15例膝骨关节炎患者的滑膜为骨关节炎组,同时选择同期因创伤致髌骨骨折行内固定术的15例年轻患者的健康滑膜为对照组,Real-time PCR法检测滑膜中PLCD3及miR-34a-5p的表达。通过细胞转染的方法,将人滑膜关节炎成纤维细胞(human fibroblast like synovial cells-osteoarthritis,HFLS-OA)进行处理,并分为miR-34a-5p模拟物组、pCDH-PLCD3组、miR-34a-5p模拟物+pCDH-PLCD3组、miR-34a-5p抑制剂组、si-PLCD3组、miR-34a-5p抑制剂+si-PLCD3组,通过Real-time PCR法检测PLCD3和miR-34a-5p表达的关系;通过CCK-8法、细胞划痕实验检测各组HFLS-OA细胞活力及细胞迁移的影响;使用Western Blot法检测凋亡标记蛋白表达水平;使用ELISA法检测炎症因子的表达。结果与结论:①PLCD3是miR-34a-5p的直接靶标,同时PLCD3和miR-34a-5p表达水平呈负相关。②PLCD3上调会促进HFLS-OA细胞的增殖并抑制细胞迁移,而miR-34a-5p上调会显著抑制HFLS-OA细胞的活性并增强细胞迁移;miR-34a-5p过表达使HFLS-OA细胞Casp3和Casp9蛋白水平显著升高,而PLCD3过表达则表现出相反趋势。③PLCD3过表达显著增加了HFLS-OA细胞白细胞介素6和肿瘤坏死因子α的表达,而miR-34a-5p模拟物则表现出保护活性。④结果说明,miR-34a-5p/PLCD3轴可能通过调节滑膜细胞的炎症过程或凋亡来影响骨关节炎的进展。

持续劳损加冰敷法兔冻结肩模型的制备及评价

目的:评估持续劳损加冰敷法制备兔冻结肩模型的成模情况。方法:选取质量为(2500±500)g的清洁级、健康雄性新西兰兔12只,随机分为空白组和模型组,每组6只。模型组采用持续劳损加冰敷造模,观察兔大体情况及肩关节主被动活动情况,并记录体重。分别于造模后第6天和第29天对兔造模侧肩关节行MRI检查,观察积液及软组织情况;采用HE染色法观察兔肱二头肌长头肌腱及关节囊滑膜的形态;采用Masson染色法观察兔肱二头肌长头肌腱及关节囊滑膜的纤维沉积情况,并用Image J软件对纤维沉积行半定量分析。结果:造模结束6 d后,模型组兔肩关节主动活动受限,被动活动受限不明显,行走跛行;造模结束29 d后,模型组兔肩关节主、被动活动均严重受限;与空白组体重(2.50±0.14)kg相比,模型组体重(2.20±0.17)kg显著降低(P<0.01)。MRI显示,造模结束后6 d,肩周肌肉外形不光滑,关节囊结构模糊,关节腔内见大量积液;造模结束后29 d,肩周肌肉外形毛糙,关节囊结构不清,关节腔内积液较造模后6 d减少。病理染色显示,模型组兔肱二头肌长头肌腱肌纤维排列紊乱,形态蜷曲,甚至断裂,关节囊滑膜组织大量血管增生,胶原纤维沉积及严重炎性细胞浸润。通过Image J软件对Masson染色结果半定量分析,模型组造模后7、30 d兔患肩肱二头肌长头肌腱纤维沉积[(23.58±3.41)%、(27.56±3.70)%]及滑膜组织纤维沉积[(41.78±5.59)%、(62.19±7.54)%]均显著高于空白组肱二头肌长头肌腱纤维沉积[(1.79±1.03)%、(1.29±0.63)%]及滑膜组织纤维沉积[(8.15±3.61)%、(11.29±7.10)%](P<0.01),且时间越长,纤维化越严重(P<0.01)。结论:行为学、影像学和病理学均显示,持续劳损加冰敷法兔冻结肩模型符合冻结肩临床表现,切合冻结肩发病机制,是一种理想的冻结肩模型。

基于膜解剖理论的胸、腹腔镜联合食管癌根治术

目的探讨膜解剖理论应用于胸、腹腔镜联合食管癌根治术的可行性及临床意义。方法回顾性分析2018年12月~2021年10月行基于膜解剖理论的胸、腹腔镜联合食管癌根治术142例资料。将食管系膜、食管癌以及食管系膜内的神经、血管、淋巴系统、脂肪组织、胃上部、胃左系膜、胃左淋巴结作为一个整体切除。术中可见食管周围含疏松结缔组织的间隙为食管筋膜融合间隙。前10例使用纳米炭示踪标记,显示食管淋巴液引流至胃左淋巴结。结果142例手术顺利,手术时间150~230(184.6±21.3)min,术中出血量20~100(46.7±16.8)ml,清扫淋巴结12~41(23.5±7.3)枚,97例淋巴结阳性;术后胸腔引流时间3~10(7.1±2.5)d,经口进流食时间5~10(7.6±1.7)d,总住院时间9~20(14.0±4.6)d。术后并发症发生率21.8%(31/142),包括吻合口漏7例(4.9%),吻合口狭窄9例(6.3%),声音嘶哑9例(6.3%),残胃炎6例(4.2%)。无术后出血、乳糜漏、感染或术后30 d内死亡。142例随访11~35个月,中位数26个月,无复发和死亡。结论食管周围存在构成“信封”的系膜结构,膜解剖理论适用于食管癌的治疗,基于膜解剖理论的食管癌根治术安全、有效、可行。