Application of Endovenous Laser Treatment Combined with Foam Sclerotherapy for the Minimally Invasive Treatment of Great Saphenous Vein Varicosity

Objective:To evaluate the efficacy of endovenous laser treatment(EVLT)combined with foam sclerotherapy(FS)in the treatment of great saphenous vein varicosity(GSVV).Methods:A total of 50 patients with GSVV,treated between March 2021 and March 2024,were selected and randomly divided into two groups using a random number table.The combination group(25 cases)underwent EVLT combined with FS,while the conventional group(25 cases)underwent EVLT alone.The total effective rate,complication rate,disease severity score,and serological indicators were compared between the two groups.Results:The total effective rate in the combination group was higher,and the complication rate was lower compared to the conventional group(P<0.05).One week after surgery,the disease severity score in the combination group was lower,coagulation function indicators were better,and inflammatory factor levels were lower compared to the conventional group(P<0.05).Conclusion:EVLT combined with FS can improve the clinical efficacy in GSVV patients,prevent postoperative complications,reduce disease severity,protect patients’coagulation function,and alleviate postoperative inflammatory responses,showing significant advantages in combined surgery.

Endovenous laser treatment vs conventional surgery for great saphenous vein varicosities: A propensity score matching analysis

BACKGROUND Varicosis is a common venous condition,which is typically treated surgically.However,selection of the optimal surgical approach can be challenging.Previous studies comparing endovenous laser treatment(EVLT)and conventional surgery were retrospective and observational in nature and the results may therefore have been influenced by selection bias and the presence of other confounding factors.In this study,we used propensity score matching to reduce selection bias when comparing EVLT and conventional surgery for the treatment of varicose great saphenous veins.METHODS We retrospectively reviewed the records of 1063 patients treated for primary varicosis of the great saphenous vein at the Second Affiliated Hospital of Xuzhou Medical University between January 2009 and December 2019.Among them,56 patients were excluded owing to additional small saphenous varicose vein involvement,81 owing to recurring varicose veins,83 owing to complicated varicose veins(CEAP clinical classification C5-C6),and 6 owing to perioperative phlebitis.Finally,772 patients were enrolled in this study.Standard demographic and clinicopathological data were collected from the medical records of the patients.For propensity score matching,522 patients(261 who underwent EVLT and 261 who underwent conventional surgery)were randomly matched 1:1 by age,sex,onset time,smoking status,presence of diabetes,family history,stress therapy,C class,and the affected leg.RESULTS Of the 772 patients included in the study,467 underwent EVLT and 305 underwent conventional surgery.There were significant differences in age,onset time,smoking and diabetes status,and family history between the two groups.Following propensity score matching,no significant differences in patients’characteristics remained between the two groups.ELVT was associated with a shorter operation time and hospital stay than conventional surgery,both before and after propensity score matching.There were no differences in complications between the two groups after propensity score matching.Patients who underwent EVLT had a higher recurrence rate during the two-year follow-up period than those who underwent conventional surgery(33.33%vs 21.46%,χ^(2)=11.506,P=0.001),and a greater percentage of patients who underwent EVLT experienced pain one week after the procedure(39.85%vs 19.54%,P=0.000).CONCLUSION EVLT may not always be the best option for the treatment of great saphenous vein varicosis.

A Comparative Analysis on Surgical Outcomes and Complications of Endoscopic and Open Vein Harvesting Techniques

Objective: The great saphenous vein (GSV) is commonly used as a conduit for grafting during CABG surgery, and open GSV harvesting (OVH), commonly used with long incision to expose the vein. However, endoscopic vein harvesting (EVH) is an alternative approach, utilizing specialized instruments and small incisions to harvest the vein. Methods: A retrospective analysis was conducted on a cohort of patients who underwent Coronary artery bypass graft (CABG) requiring great saphenous vein (GSV) harvesting which was done by EVH or OVH procedures. Demographic variables, including age and gender, were assessed for both groups. Intraoperative variables such as the number of grafts, cardiopulmonary bypass time, X clamp time, and type of procedure were analyzed. Postoperative variables, including infection and bleeding rates, were also evaluated. Results: The study included 30 patients each undergoing Coronary artery bypass graft (CABG) with need of great saphenous vein harvesting which was done by EVH and OVH. Demographic variables were well-matched between the two groups in terms of age, while a significant difference in gender distribution was observed. Obesity and smoking were more prevalent in the OVH group, and EVH was associated with a higher mean number of grafts compared to OVH. Conversion to an open technique occurred in a portion of the EVH cases, and infection rates did not significantly differ between the EVH and OVH groups. However, the incidence of postoperative bleeding was significantly higher in the EVH group. Conclusion: This study provides valuable insights into the demographic, intraoperative, and postoperative variables associated with EVH and OVH techniques. EVH demonstrated advantages in terms of reduced infection rates compared to OVH. However, the higher incidence of postoperative bleeding associated with EVH raises concerns about potential risks.

VNUS Closure^®FAST Radiofrequency of the Great Saphenous Vein for Superficial Venous Insufficiency: Experience of the CH of Cholet in France

Background:The objective of this work was to evaluate the first results of the radio ablation of the great saphenous vein in the processing of chronic venous insufficiency. Method: This is a monocentric retrospective study of radio ablation of the great saphenous vein using VNUS Closure® FAST for superficial venous insufficiency of the great saphenous vein, between January 2012 and December 2014. Results: 42 patients (57 limbs) were operated on with this technology. There were 33 women and 9 men (mean age: 46.5 years). Thirty-nine patients (92. 8%) were symptomatic. Thirty-two patients (76.1%) were classified CEAP 2. The average diameter of the saphenous vein was 8.5 ± 1.5 mm. Three patients (7.1%) had a percutaneous approach. A perfect occlusion of the saphenous vein was observed in all patients. No incident or undesirable event was observed during the procedure. One case of delayed deep-vein thrombosis was observed. At one month of follow-up, six patients (14.2%) had induration opposite to the occluded vein. Forty-three percent of the patients stated they were very satisfied with the procedure. Conclusion: The effectiveness, security and simplicity of the closure method are real. More studies are necessary to assess the long-term results of this procedure.

Radial Artery and Saphenous Vein Grafts in Coronary Artery Bypass Surgery Comparison in Terms of Patient Symptoms

Background: The aim of this study is to compare radial artery with saphenous vein grafts which are widely used for coronary bypass, from views of patients’ satisfaction and postoperative findings. Methods: 42 isolated coronary bypass (CABG) patients performed during November 2012-April 2013 are included in the study. 30 days after the operation, in patients who had both RA and SV removal made responses to a questionnaire form which included 6 questions about symptoms of extremity. Results: After analyzing the responses and physical examination, there was no difference in terms of quality of life and usefulness of the extremity for daily use between two grafts. 2 patients (2%) have wound infection on the saphenous vein incision and additional surgical procedure was performed and a scar tissue has occurred. There was no statistically significance between uncomfortable symptoms and demographic data. Conclusion: Our study suggested that RA graft using showed a bit more comfortable and suitable effect against SV in our patients. We think that radial arterial grafts should be used more widely in coronary surgery with selected patients.

Revascularization for Iliac-femoral Artery Pseudoaneurysm with Greater Saphenous Vein

Objective To investigate the role of revascularization procedures with autologous greater saphenous vein in surgical management of iliac-femoral artery pseudoaneurysm in parenteral drug abusers. Methods Twenty-one patients with iliac-femoral artery pseudoaneurysm caused by parenteral drug abuse from 2004 to 2007 were enrolled. Among them,15 patients were male and 6 were female; their average age was 31.3 years. The size of pseudoaneurysms ranged from 3.0 cm to 7.5 cm. Common femoral artery and distal external iliac artery were often involved. We performed arterial reconstruction on these patients with autologous greater saphenous vein as a graft after excising iliac-femoral artery pseudoaneurysm through a single curved inguinal incision. All patients were followed up,and the complications were recorded. Results The surgical procedures were finished without intraoperative mortality or perioperative complications. All patients were free of claudication symptoms after the surgery except one case with preoperative popliteal artery stenosis. One case of infection and wound tissue fistula was found later. One case had inguinal incisional hematoma and another complained of numbness in thigh skin. Conclusions The use of autologous greater saphenous venous grafts for arterial reconstruction after pseudoaneurysm excision in drug abusers is safe and effective. This technique offers more advantages than arterial ligation alone without revascularization. An optimal greater saphenous venous graft is a prerequisite for revascularization.

Retrograde percutaneous coronary intervention via critically degenerated saphenous vein grafts for chronic total occlusion in native coronary arteries

We report the case of a 78-year-old woman with saphenous vein graft (SVG) disease and chronic total occlusion (CTO) in three native coronary arteries [left anterior descending artery (LAD), left circumflex artery, and the right coronary artery], who was successfully treated by percutaneous coronary intervention (PCI) using the retrograde approach via the critically degenerated SVGs. The patient, a 78-year-old woman, presented with sudden chest pain and dyspnea. She had previously undergone coronary artery bypass surgery using SVGs for the three vessels and percutaneous coronary intervention with sirolimuseluting stent placement in the posterolateral branch 13 and 3 years ago, respectively. Electrocardiography revealed ST-segment elevation in leads V1-4, whereas emergent coronary angiography revealed total occlusion in her native coronary arteries. Primary PCI was scheduled. A channel dilator was advanced very smoothly and safely into the distal site of the CTO lesion in the LAD, which showed complete occlusion in the proximal region, via an SVG that was temporally occluded four days earlier. A reverse controlled antegrade and retrograde tracking technique was used to successfully perform percutaneous recanalization. Subsequently, the other two native CTO lesions protected by critically degenerated SVGs were treated with retrograde intervention via the SVGs. The retrograde approach via critically degenerated SVGs is safe, reliable, and fast. If an SVG bypassing the native CTO lesion is critically degenerated, percutaneous coronary intervention should be performed via the SVG.

Percutaneous recanalization of total saphenous vein graft occlusion with excimer laser treatment

Patients presenting with recurrence of anginal symptoms after saphenous vein bypass surgery pose an increasingly frequent challenge.In general,approximately 40%to 50%of saphenous vein graft(SVG)will become diseased or occluded within the first ten years after surgery.[1]Because adverse clinical outcomes,such as high restenosis rates and distal embolization,have been reported,percutaneous coronary intervention(PCI)for SVG is not recommended as a first-line strategy.[2]Distal embolization occurs in 2%–17%of patients despite advances in therapy,including the utilization of embolic protection device(EPD),which may lead to increased mortality at both short follow-up and midterm follow-up.[3]However,these patients often associated with inappropriate anatomic characteristics of native vessel intervention including calcification,tortuosity,abundant plaque burden,and complex chronic total occlusion(CTO)lesions.Moreover,repeat coronary bypass surgery is an option but is technically more demanding and is associated with a higher mortality.Therefore,it can sometimes result in SVG stenosis being the only intervention option.This is why the recanalization of SVG lesions,especially totally occluded lesions,remains one of the most challenging procedures in interventional cardiology.

Glabridin Relaxes Vascular Smooth Muscles by Activating BK_(Ca) Channels and Inhibiting Phosphodiesterase in Human Saphenous Vein

The aim of the current study was to investigate the pharmacological activity of glabridinon the isolated human saphenous vein (SV) and explore the underlying mechanisms. Samples of patients' SVs were removed during bypass surgery, and 4-mm lengths of the vessels were placedin Krebs solution at ±4℃ and hung in an isolated organ bath to assess their contraction/relaxationresponses. The contraction/relaxation responses were recorded to observe if the cyclic guanosinemonophosphate (cGMP)/protein kinase G (PKG) pathway mediates the relaxant effect of glabridinafter treatment with blockers like ODQ (a guanylate cyclase inhibitor), KT5823 (a PKG inhibitor),isobutylmethylxanthine [IBMX, a phosphodiesterase (PDE) inhibitor], and cantharidin [Cant,a myosin light-chain phosphatase (MLCP) inhibitor]. Moreover, nitric oxide (NO), cGMP, andPKG levels in SV tissues were determined by ELISA after incubation with glabridin, N(o)-nitro-L-arginine methyl ester (L-Name, a NO synthetase inhibitor), phenylephrine (PE), ODQ, IBMX,and KT5823. The results showed that glabridin relaxed the vascular smooth muscle of humanSV pretreated with PE in a dose-dependent manner, which was independent of the endothelium.The vasorelaxant effect of glabridin was only inhibited by iberiotoxin (IbTX), Cant, and KT5823.Glabridin increased cGMP and PKG levels in SV homogenates, whereas it did not alter the NOlevel. The enhancing efects of cGMP and PKG levels by glabridin were abolished by ODQ andKT5823. In conclusion, glabridin has a vasorelaxant effect, which is associated with the activationof BKc. channels and inhibition of PDE.

Effect of Troglitazone on Expression of Adhesion Molecules and eNOS in Human Saphenous Vein Gaft

To investigate whether peroxisome proliferators-activated receptor-γ （PPARγ） ligand Troglitazone can reduce endothelial injury and activation during storage of harvested saphenous vein grafts. Segments of human saphenous vein graft were collected from 9 patients undergoing coronary bypass surgery and then divided into two equal parts of control and test specimens, were stored in ei- ther heparinized blood （control group） or heparinized blood containing 20 μmol/L troglitazone （test group） for 1 h at room temperature. Tissue distribution and protein expression of VCAM-I, ICAM-I, and endothelial nitric oxide synthase （eNOS） were compared using immunohistochemistry and Western blot analysis. Myeloperoxidase （MPO） activity, a marker of neutrophil sequestration in human saphenous vein grafts, was also measured in each group. The expression of ICAM-1 （753±132 versus 7201±934; P〈0.01） , VCAM-1 （3731±294 versus 8292±793; P〈0.01）, and MPO activity （1.52±0.42 U/g, 5.04±1.26 U/g P〈0.01） were significantly lower in test group. In contract, eNOS expression （7983±834 versus 3989±1008; P〈0.01） was significantly higher in test group. PPARγ ligand troglitazone might reduce endothelial injury during the storage period of human saphenous vein grafts.

Effects of Levosimendan on Hydrogen Peroxide Induced Contraction in Human Saphenous Vein

Aim: Increased oxidative stress plays important roles in vascular dysfunction in patients undergoing coronary artery bypass graft surgery. Hydrogen peroxide (H2O2) is used as an experimental model for oxidative stress. The present study was designed to assess the effects of levosimendan pretreatment on the contractile effects induced by H2O2 in human saphenous vein (HSV) segments. Methods: We studied H2O2 induced contractions of isolated HSV mounted in standard tissue baths. H2O2 (10-6 – 10-3 M) was added cumulatively to the organ bath. Concentration-response curves to H2O2 were repeated in the presence of levosimendan (10–8 M). In the second series of experiments, strips were contracted with 5-HT (10–5 M). When the contraction reached a stable plateau, H2O2 was administrated cumulatively into the organ bath. The same procedure was conducted in the presence of levosimendan. Results: Pretreatment of the SV strips with levosimendan significantly reduced the contractile response to each concentration of H2O2 . 5-HT produced contractions in SV strips. Further treatment of these strips with H2O2 resulted in statistically significant concentration-dependent increases in tension. Preincubation of the tissues with levosimendan did not significantly influence the maximum amplitude of the 5-HT-induced tone but inhibited the contractile effect of H2O2 on the 5-HT-induced contraction. Conclusion: Pretreatment of HSV with clinical concentrations of levosimendan inhibits the vasoconstriction caused by oxidative stress, indicating its potential preventive effect against oxidative stress induced graft spasm.

A huge thrombosed aneurysm of a saphenous vein graft leading to compression of cardiac structures： role of multimodality imaging

Aneurysmal change of saphenous vein grafts （SVG） is a rare condition that predominantly develops 10-20 years after coronary artery bypass graft （CABG）. Natural course includes mechanical complications due to mass effect, myocardial infarction and aneurysmal rupture. Aneurysmectomy can be considered when it induces such complications. We demonstrate complete set of diagnosis, treatment and post-operative imaging of a huge SVG aneurysm that was successfully treated with surgical resection.

Morbidity of Open Saphenous Vein Harvesting after Preoperative Ultrasonic Mapping

Preoperative echography of a saphenous vein graft (SVG) was studied. In 58 cases of consecutive coronary artery bypass grafting, 31 patients underwent SVG echography. Preoperative assessment revealed vein caliber, branching, or varicose saphenous veins. The location of the saphenous vein was marked. Saphenous veins were harvested by the open harvest technique, and the caliber of the veins and the availability of the anastomosis device were recorded. Postoperative morbidity was recorded. Preoperative findings revealed that four (6.5%) of 62 femoral saphenous veins were estimated as “not graftable” because of being a varicose vein or having a small caliber. Seven of 32 lower saphenous veins were estimated as “not graftable”. The mean discrepancy of the caliber was 0.6 mm undersized with preoperative estimation. During harvesting, one of 31 patients had a wrong marking. We were able to use all harvested veins. The morbidity of saphenous harvesting was observed in two (6.5%) of 31 patients. One patient whose marking was wrong had minor skin necrosis. Another patient experienced a hematoma because of the excess effect of warfarin. Preoperative ultrasonic mapping of the saphenous vein reduced useless harvesting, provided information concerning anastomosis device availability, and seemed to reduce morbidity because dissection can be minimal.

Cutaneous Manifestations at Saphenous Vein Harvest Site among Iraqi Patients with Coronary Artery Bypass Graft

Background: Coronary artery bypass grafting (CABG) has become a common surgical procedure and increasingly done in Iraq. The greater saphenous vein (GSV) is the most veins often used as the conduit and its complications include a variety of cutaneous manifestations. Objective: To report the cutaneous manifestations at the saphenous vein harvesting site in Iraqi patients who undergone CABG. Methods: A total of 100 (82 males, 18 females) patients who had undergone CABG using the saphenous vein (SV) harvested by longitudinal incision open technique at the legs and/ or thighs were included in this case descriptive study. All cases were seen at least two months after the time of the operation in the outpatient clinic of the Cardiac Surgery Department in the Ibn-Albitar Hospital during October 2009 - October 2010. A detailed history and close dermatological examination were done including all related points to their problems. Results: The cutaneous changes on and around the saphenous vein (SV) graft donor scars were noticed in 60 out of 100 patients, 49 (81.66%) males and 11 (18.33%) females, their ages ranged from 32 - 74 (59.38±8.3221) years, with body mass index (BMI)ranged from 21.8746 - 26.9057 (23.875±8.5378). The duration interval between the time of CABG and presentation ranged from 2-180 months with a median of 5 months, 36 (60%) patients presented at less than 6 months and 24 (40%) patients presented at more than 6 months. Anesthesia was the predominant presenting symptom in 49 (81.6%), followed by neurolgic pain 8 (13.3%) and pruritus 2 (3.3%), while the cutaneous signs recorded at the site of SVG were: Xerosis in 17 (28.3%) patients, followed by residual hyperpigmentation 11(18.3%), depigmentation 11(18%), recent hair loss 11 (16.6%), hypertrophic scar 8 (13.3%), non-healing ulcer 7 (11.6%), lymphedema 7 (11.6%) and neuropathy dermatitis 6 (10%). Conclusions: Cutaneous manifestations following coronary artery bypass surgery are not uncommon problem in Iraqi patients that are seen at area of saphenous vein harvesting but the most interesting thing is to report the neuropathy dermatitis.

Higher Energy Does Not Mean Better Outcome Following Endovenous Laser Ablation of Great Saphenous Vein

Background: Endovenous laser ablation is a relatively newer alternative to treat great saphenous vein insufficiency. We evaluated the efficiency and safety of treatment endovenous laser procedures on the different saphenous vein diameters with different energy levels. Methods: Data regarding endovenous laser ablation of symptomatic chronic great saphenous venous insufficiency in 209 patients were prospectively recorded. Patients were grouped into two main groups based on their diameters as 5 to 7 millimeters (Group A) or more than 7 millimeters (Group B). Patients in each group was randomized into two groups as >90 J/cm (A1 and B1) or 80-90 J/cm (A2 and B2). Postoperative outcome and complications were recorded during follow-ups at 1st week;1st, 3rd and 6th months to examine the venous reflux and recanalization. Results: Perioperative complaints as pain, cramps and ankle swelling were more commonly observed in A1 group. Fatigue was more common in A2 and B2 groups. No major complications as deep vein thrombosis or skin burns were observed. Conclusions: Endovenous laser ablation is a safe and effective procedure with a high satisfaction rate shortening hospitalization durations and early ambulant activity. Pain, ankle swelling and fatigue are the most common minor complaints in the early postoperative period.

Saphenous graft on transesophageal echocardiogram masquerading as an abnormal vascular communication into the right atrium

An unknown aberrant f low in the right atrium observed on doppler with transesophageal echocardiogram(TEE) in a patient with prior coronary bypass. TEE revealed normal size left ventricle with severely dilated left atrium. There was moderate aortic regurgitation and moderate aortic stenosis noted. Patient was incidentally found to have an abnormal vascular communication noted to the right atrium. To further evaluate this f inding, the patient underwent cardiac magnetic resonance angiography which revealed that the tubular structure noted on TEE was actually a graft that was abutting onto the coronary sinus, and the f low anomaly was really the graft coming up and running adjacent to the coronary sinus.

The effect of endoscopic vein harvesting in coronary artery bypass surgery:association between vein harvesting techniques and quality of conduits,wound complications,and cardiovascular events

Objective The study aimed to compare quality of saphenous vein(SV)grafts,wound complications,and clinical outcomes between endoscopic vein harvesting(EVH)technique and open vein harvesting(OVH)technique of coronary artery bypass graft(CABG)surgery.Methods One hundred patients with multi-vessel coronary disease underwent elective CABG using SV grafts were prospectively recruited and randomized into two groups.

经同侧大隐静脉入路髂静脉成型及支架植入术在日间治疗模式中的应用

目的:探讨髂静脉狭窄患者经同侧大隐静脉入路髂静脉成型及支架植入术在日间治疗模式中应用的可行性和近期疗效。方法:回顾性分析2017年2月至2022年3月经同侧大隐静脉入路实施髂静脉成型及支架植入术日间模式治疗的病例,共21例,男6例,女15例,年龄37~79岁[(62.5±10.2)岁]。髂静脉狭窄中单纯累及髂总静脉16例,单纯累及髂外静脉2例,同时累及髂总及髂外静脉3例,均通过同侧大隐静脉入路行髂静脉成型及髂静脉支架植入术,同时存在大隐静脉瓣膜功能不全的单纯髂静脉狭窄患者同期行大隐静脉射频闭合及曲张静脉硬化治疗术。术后规律直接口服抗凝药治疗及压力治疗,所有患者住院时间均于小于24 h。结果:所有21例患者手术均成功(手术成功率100%),术中无并发症,术后即刻并发症中穿刺点出血1例,加压包扎纱布被完全浸湿,经再次压迫止血5 min后渗血停止,所有患者住院时间均于小于24 h。随访结果:术后3个月随访率100%,其中绝对有效18例(18/21,85.7%),相对有效(术后仍有色素沉着,但范围减小)3例(3/21,14.3%)。髂静脉支架均通畅,同期行大隐静脉射频治疗患者射频治疗段大隐静脉主干均闭合良好。术后6个月随访率71.4%(15/21),其中绝对有效14例(14/15,93.3%),相对有效(术后仍有色素沉着,但范围减小)1例(1/15,6.7%)。髂静脉支架均通畅,同期行大隐静脉射频治疗患者射频治疗段大隐静脉主干均闭合良好。结论:经大隐静脉入路髂静脉狭窄的介入治疗技术在日间治疗模式中可行,有明确优势,近期疗效满意。

预防性抗凝对大隐静脉射频闭合术后症状性静脉血栓栓塞的影响

目的探讨大隐静脉射频闭合术后使用预防性抗凝药物对症状性静脉血栓栓塞(VTE)的影响。方法回顾性选取2022年1至12月在浙江省人民医院血管外科行大隐静脉射频闭合术的1074例患者为研究对象,其中未接受口服预防性抗凝药物组(未接受抗凝治疗组)106例、接受利伐沙班10 mg抗凝治疗5 d组(预防性抗凝5 d组)762例、接受利伐沙班10 mg抗凝治疗10 d组(预防性抗凝10 d组)206例。比较3组患者术后1个月内VTE发生率和出血性事件发生率。结果未接受抗凝治疗组术后1个月内未发生VTE,预防性抗凝5 d组和预防性抗凝10 d组术后1个月内VTE发生率分别为0.52%(4/762)和0.49%(1/206),3组患者术后1个月内VTE发生率比较差异无统计学意义(P=0.593)。未接受抗凝治疗组和预防性抗凝5 d组术后1个月内未发生出血性事件;预防性抗凝10 d组术后出现血尿1例,发生率为0.49%(1/206),3组患者术后1个月内出血性事件发生率比较差异无统计学意义(P=0.191)。结论大隐静脉射频闭合术后预防性抗凝使用利伐沙班未能明显降低VTE发生率,但也不会增加出血风险。

经内窥镜大隐静脉获取术在冠状动脉旁路移植术中应用的学习曲线

【目的】探讨内窥镜获取大隐静脉在冠状动脉旁路移植术中的应用并探讨学习曲线,重点关注初学者易发生的问题及对早期临床结果的影响。【方法】回顾性分析2013年7月至2014年4月在郑州大学第一附属医院心外科接受不停跳冠状动脉旁路移植术并使用内窥镜技术获取大隐静脉的83例患者的临床资料,按照手术时间的先后顺序分为A组(初学组20例)、B组(熟悉组20例)、C组(进步组20例)、D组(成熟组23例),分析各组之间患者围术期及随访结果差异,明确学习曲线周期。【结果】该组患者年龄为(60.22±8.06)岁,体质量为(69.77±11.66)kg,其中合并高血压24例、糖尿病26例、亚急性脑梗14例。A组相对于后三组获取大隐静脉长度与时间比值明显较小(P<0.001),静脉主干损伤数量明显较多(P=0.006),并且随访1年时静脉桥通畅率较低,但差异无统计学意义。【结论】内窥镜获取大隐静脉之前技术操作培训是必要的,能有效规避初学者造成的血管损伤,实际获取的过程中大概需要亲自操作20例,并认真总结技术技巧就可以较为熟练地进行相关操作。