Pavel V. Sukhoruchkin

Aim of study. The development of a program for predicting thrombosis with subsequent amputation of a limb in the long-term period after femoral-popliteal bypass (FPB).Material and methods. This is a retrospective open comparative study performed from January 10, 2016 to December 25, 2019 at Research Institute – Professor S.V. Ochapovsky Regional Clinical Hospital No. 1 of the Ministry of Health of the Krasnodar Territory, Krasnodar, which included 473 patients who underwent FPB. Depending on the type of bypass, five groups were formed: Group 1 (n=266), reversed vein (great saphenous vein (GSV); Group 2 (n=59), autovenous vein (GSV), prepared in situ; Group 3 (n=66), autovenous vein (GSV), prepared ex situ; Group 4 (n=9) synthetic graft (Jotec, Germany); Group 5 (n=73), veins of the upper limb (forearm and shoulder). In all cases of observation, multislice computed tomography with angiography revealed an extensive (25 cm or more) atherosclerotic occlusive lesion of the superficial femoral artery, corresponding to type D according to the transatlantic consensus (TASC II). The long-term followup period was 16.6±10.3 months.Results. During the hospital postoperative period, all complications developed in groups 1, 2, 3 and 5. However, no significant intergroup statistical differences were found. In the long-term follow-up period, according to the mortality rate (group 1: 4.6%; group 2: 1.7%; group 3: 4.6%; group 4: 0%; group 5: 2.8%; p=0.78), myocardial infarction (group 1: 1.9%; group 2: 0%; group 3: 1.5%; group 4: 0%; group 5: 0%; p=0.62), ischemic stroke (group 1: 0.8%; group 2: 1.7%; group 3: 1.5%; group 4: 0%; group 5: 0%; p=0.8) and bybass thrombosis (group 1: 14.5%; group 2: 19.3%; group 3: 18.5%; group 4: 44.4%; group 5: 19.7%; p=0.16), no significant intergroup differences were identified. However, the largest number of limb amputations (group 1: 4.2%; group 2: 5.3%; group 3: 9.2%; group 4: 22.2%; group 5: 1.4%; p=0.03) and the maximum composite endpoint (sum of all complications) (group 1: 26.0%; group 2: 28.1%; group 3: 35.4%; group 4: 66.7%; group 5: 23 .9%; p=0.05) were observed after the use of a synthetic graft. Using “random forest” analysis, a model and computer program was created that allows, the risk (low, medium, high) of developing bypass thrombosis to be assessed interactively, based on clinical, anamnestic, demographic and perioperative data, with subsequent amputation after FPB in the long-term follow-up period.Conclusions. Revascularization strategy for patients with extended atherosclerotic lesions of the femoropopliteal segment should be determined individually and only by a multidisciplinary council. The conduit of choice for femoral-popliteal bypass surgery is an autovenous graft. Synthetic prostheses can only be used in the absence of the latter. To identify a group of patients with a high risk of thrombosis of the femoral-popliteal bypass and limb amputation in the long-term follow-up period, the created risk stratification program for the development of these complications can be used. Precision supervision of these patients in the postoperative period will make it possible to prevent these adverse events in time.

   Background: According to the International Working Group on the Diabetic Foot (2015), 28 % of diabetic foot ulcers result in major amputations. Over 30 % of patients with diabetic foot undergo major amputations that result in death in 13.0 %-14.0 % of the cases.   Clinical case: In our experience of treating a female patient with diabetic foot complications, we observed that such cases require a multidisciplinary approach to determine management strategies, as well as strict surgery staging. Early plastic and reconstructive surgery demonstrated its positive impact on postoperative wound closure.   Conclusions: We managed the infection and achieved the complete closure of the major wound and primary intention healing through the multidisciplinary approach and strict adherence to surgical staging (debridement, revascularization, reconstruction). Thus, patient quality of life and rehabilitation potential significantly improved.

This review is devoted to the role of femoropopliteal bypass (FPB) surgery for lower limb revascularization. The authors discuss the indications for surgery and choice of reconstruction method according to the Russian guidelines (national guidelines for the diagnosis and treatment of peripheral artery disease (Moscow, 2019), clinical guidelines “Diseases of the lower limb arteries” (Ministry of Health of the Russian Federation, 2016)), guidelines of the European Society of Cardiology and the European Society of Vascular Surgeons (2017), Transatlantic Consensus (TASC II). A special attention is paid to the results of FPB with autologous veins, biological and polytetrafluoroethylene prostheses. New methods and techniques of surgery improving patency of the graft are presented. Implantation of biological prosthesis is associated with higher incidence of thrombosis, restenosis and aneurysmal transformations. Their use is characterized by non-optimal long-term results of revascularization.

Aim. To analyze the long-term outcomes of a novel method of femoropopliteal bypass (FPB) surgery.Material and methods. This retrospective, open-label, comparative study for the period from October 1, 2016 to December 25, 2019 at the Research Institute of the S. V. Ochapovsky Regional Clinical Hospital №1 (Krasnodar Krai) included 473 patient who underwent FBP. Depending on the type of graft, 5 groups were formed: group 1 (n=266) — reversed vein (great saphenous vein (GSV)); group 2 (n=59) — autologous vein graft (GSV) prepared in situ; group 3 (n=66) — autologous vein graft (GSV) prepared ex situ; group 4 (n=9) — synthetic graft (Jotec, Germany); group 5 (n=73) — upper limb veins. In all cases, Multislice computed tomography angiography revealed an extended (25 cm or more) Trans-Atlantic Inter-Society Consensus (TASC II) class D occlusion of the superficial femoral artery. The longterm follow-up period was 16,6±10,3 months. The technical result of novel FPB technique was achieved using proposed type of an autologous vein graft preparation, in which, after GSV isolation, ex situ valvulotomy was performed, followed by the non-reversed subfascial orthotopic graft passage along the neurovascular bundle by tunneling (Sheath Tunneler Set; Peripheral Vascular, USA) soft tissues. The GSV ex situ was prepared as follows: the GSV was isolated from the saphenofemoral fistula in the distal direction to the required length and removed from the wound. Further, valvulotomy was performed through the proximal end of GSV. Then the valvulotome was removed and a metal cannula was inserted. Through it, a saline solution at indoor temperature with unfractionated heparin was injected into the GSV lumen, simulating blood flow, and the quality of the performed valvulotomy was assessed.Results. In the inhospital postoperative period, all complications developed in groups 1, 2, 3 and 5. However, no significant intergroup statistical differences were found. In the long-term follow-up, there were no significant intergroup differences in the prevalence of deaths (group 1: 4,6%; group 2: 1,7%; group 3: 4,6%; group 4: 0%; group 5: 2,8%; p=0,78), myocardial infarction (group 1: 1,9%; group 2: 0%; group 3: 1,5%; group 4: 0%; group 5: 0%; p=0,62), ischemic stroke (group 1: 0,8%; group 2: 1,7%; group 3: 1,5%; group 4: 0%; group 5: 0%; p=0,8) and shunt thrombosis (group 1: 14,5%; group 2: 19,3%; group 3: 18,5%; group 4: 44,4%; group 5: 19,7%; p=0,16). However, the highest number of limb amputations (group 1: 4,2%; group 2: 5,3%; group 3: 9,2%; group 4: 22,2%; group 5: 1,4%; p=0,03) and the highest rate of composite endpoint (sum of all complications) (group 1: 26,0%; group 2: 28,1%; group 3: 35,4%; group 4: 66,7%; group 5: 23 ,9%; p=0,05) were observed in patients with synthetic prosthesis.Conclusion. FPB with the autologous vein graft ex situ is characterized by a comparable inhospital and long-term outcomes with BPS using the reversed autologous vein and autologous vein in situ. Thus, this surgical technique may become one of the preferable operations for patients with extended occlusion of the superficial femoral artery.

INTRODUCTION: Atherosclerotic lesion of lower limb arteries often occurs with the development of chronic and later with critical ischemia of the lower limbs. Revascularization in these conditions has always been at the center of attention of vascular surgeons worldwide. AIM: To analyze long-term complications after femoropopliteal bypass (FPB) with the autovenous graft. MATERIALS AND METHODS: This retrospective open study was conducted in Scientific the Research Institute Regional Clinical Hospital No. 1 named after Professor S. V. Ochapovsky (Krasnodar) in the period from January 10, 2016, to December 25, 2019, and included 464 patients who underwent FPB with venous autograft. The following autovenous conduits were used: n = 266, reverse vein (great saphenous vein (GSV)); n = 59, autovein (GSV) prepared in situ; n = 66, autovein (GSV) prepared ex situ; and n = 73, veins of an upper limb. The long-term follow-up period was 16.6 10.3 months. RESULTS: During the postoperative hospital period, single cases of lethal outcome and myocardial infarction were noted. No ischemic strokes were recorded. Shunt thrombosis developed in 4.5% of the patients, and 2.1% required limb amputation. Postoperative wound revision caused by bleeding was performed in 1.7% of the cases. In the remote follow-up period, adverse cardiovascular events were noted in every fifth patient (21.8%). Shunt thrombosis was diagnosed in 17.4% of cases, and limb amputation was performed in 5.1% of the cases. To identify the factors for poor prognosis, the whole sample was divided to two groups: group 1 (n = 366) included those without long-term complications and group 2 (n = 99) comprised patients with long-term complications. Using the odds ratio (OR), the following predictors of adverse cardiovascular events were identified: degree I obesity (р 0.0001; OR = 3.24; 95% confidence interval (CI) = 1.935.43), degree II obesity (р = 0.0005; ОR = 4.84; 95% CI = 1.7113.67), and stage IIB chronic lower limb ischemia (CLLI) (р = 0.0006; ОR = 2.24; 95% CI = 1.423.52). Protective factors were postinfarction cardiosclerosis (р = 0.04; ОR = 0.51; 95% CI = 0.270.95), excessive body mass (р = 0.01; ОR = 0.56; 95% CI = 0.350.88), and stage IV CLLI (р = 0.01; ОR = 0.53; 95% CI = 0.320.86). CONCLUSIONS: FPB with venous autograft is characterized by a low frequency of complications in the hospital and long-term follow-up periods, making this technique a method of choice for the open surgical treatment of patients with extended atherosclerotic lesion of the superficial femoral artery. Predictors of adverse cardiovascular events in the long-term period are degree I obesity, degree II obesity, and stage IIB CLLI. Protective factors against the development of long-term surgical complications are postinfarction cardiosclerosis, overweight, and stage IV CLLI. The presented results should be considered when constructing stratification risk scales for adverse cardiovascular events in patients who underwent FPB. Precision management of patients with identified predictors of complications will allow the reduction of the risks for the development of these conditions and increase long-term survival free from shunt thrombosis and limb amputation.

At present, there are no studies on the analysis of the incidence of complications in patients with concomitant lesions of the coronary and internal carotid arteries (ICA) after combined operation of carotid endarterectomy (CE) and coronary artery bypass grafting (CABG) against the background of type 2 diabetes (T2D). However, there is no doubt that this condition can be a predictor of cardiovascular and wound complications during in-hospital and long-term postoperative periods.Aim. To study in-hospital and long-term outcomes of combined CABG+CE in patients with and without type 2 diabetes.Material and methods. This multicenter retrospective study for the period from January 2015 to December 2019 included 653 patients with concomitant atherosclerotic lesions of ICA and coronary arteries, who underwent combined CE+CABG. Depending on presence of type 2 diabetes, 2 groups were formed: group 1 (n=183) — patients with type 2 diabetes; group 2 (n=471) — patients without type 2 diabetes. The duration of postoperative follow-up was 37,8±14,9 months.Results. During hospitalization, significant differences in the incidence of death (group 1 =1,1%; group 2 =1,0%; p=0,97), myocardial infarction (MI) (group 1 =1,1%; group 2 =0,8%; p=0,76), bleeding events (group 1 =1,1%; group 2 =0,8%; p=0,76) were not detected. However, stroke (group 1 =3,8%; group 2 =0,4%; p=0,0008), sternal wound infection and mediastinitis (group 1 =3,3%; group 2 =0,2%; p=0,0006) were significantly more often developed in patients with type 2 diabetes.In the long-term follow-up period, death (group 1 =6,6%; group 2 =1,1%; pConclusion. Patients with type 2 diabetes who are referred for combined CE+CABG are at an increased risk of stroke, sternal wound infection and mediastinitis in the in-hospital postoperative period, as well as all adverse cardiovascular events in the long-term follow-up period.

At present, there are no studies on the analysis of the incidence of complications in patients with concomitant lesions of the coronary and internal carotid arteries (ICA) after combined operation of carotid endarterectomy (CE) and coronary artery bypass grafting (CABG) against the background of type 2 diabetes (T2D). However, there is no doubt that this condition can be a predictor of cardiovascular and wound complications during in-hospital and long-term postoperative periods.Aim. To study in-hospital and long-term outcomes of combined CABG+CE in patients with and without type 2 diabetes.Material and methods. This multicenter retrospective study for the period from January 2015 to December 2019 included 653 patients with concomitant atherosclerotic lesions of ICA and coronary arteries, who underwent combined CE+CABG. Depending on presence of type 2 diabetes, 2 groups were formed: group 1 (n=183) — patients with type 2 diabetes; group 2 (n=471) — patients without type 2 diabetes. The duration of postoperative follow-up was 37,8±14,9 months.Results. During hospitalization, significant differences in the incidence of death (group 1 =1,1%; group 2 =1,0%; p=0,97), myocardial infarction (MI) (group 1 =1,1%; group 2 =0,8%; p=0,76), bleeding events (group 1 =1,1%; group 2 =0,8%; p=0,76) were not detected. However, stroke (group 1 =3,8%; group 2 =0,4%; p=0,0008), sternal wound infection and mediastinitis (group 1 =3,3%; group 2 =0,2%; p=0,0006) were significantly more often developed in patients with type 2 diabetes.In the long-term follow-up period, death (group 1 =6,6%; group 2 =1,1%; pConclusion. Patients with type 2 diabetes who are referred for combined CE+CABG are at an increased risk of stroke, sternal wound infection and mediastinitis in the in-hospital postoperative period, as well as all adverse cardiovascular events in the long-term follow-up period.

Резекция аневризмы висцеральной артерии с использованием робот-ассистированной хирургической системы da Vinci Xi (клиническое наблюдение)

ЦЕЛЬ ИССЛЕДОВАНИЯ Анализ непосредственных и отдаленных результатов различных методов бедренно-подколенного шунтирования (БПШ) аутологичной веной с применением анализа propensity score matching. МАТЕРИАЛ И МЕТОДЫ В настоящее ретроспективное одноцентровое открытое исследование за период с 10.01.2016 по 25.12.2019 в ГБУЗ «НИИ — Краевая клиническая больница №1 им. проф. С.В. Очаповского» включены 464 пациента, которым выполняли БПШ аутологичной большой подкожной веной. Применяли следующие разновидности аутовенозных кондуитов: реверсированная аутовена (n=266; 1-я группа), аутовена, подготовленная in situ (n=59; 2-я группа), аутовена верхней конечности (n=73; 3-я группа), аутовена, подготовленная ex situ (n=66; 4-я группа). Отдаленный период наблюдения составил 16,6±10,3 мес. РЕЗУЛЬТАТЫ Ввиду того что пациенты по ряду показателей оказались несопоставимыми для достижения баланса, применен анализ propensity score matching. Поскольку 2—4-я группы включали небольшие выборки больных, их численность сокращалась до менее 10, что не позволяло сделать достоверные выводы об исходах лечения. В этой ситуации было решено выделить две группы: 1-я группа — БПШ по методике ex situ, 2-я группа — остальные варианты БПШ аутологичной веной. После применения анализа propensity score matching число пациентов 1-й группы составило 299, 2-й группы — 46. В госпитальном послеоперационном периоде статистически значимые различия получены по частоте тромбозов аутовенозного шунта (1-я группа — 3 (6,5%), 2-я группа — 79 (26,4%); p=0,003; ОШ 0,19; 95% ДИ 0,05—0,64), нагноения послеоперационной раны (1-я группа — 2 (4,3%), 2-я группа — 52 (17,4%); p=0,02; ОШ 0,21; 95% ДИ 0,05—0,91). В отдаленном послеоперационном периоде статистически значимые различия получены по частоте ампутации конечности (1-я группа — 6 (13%), 2-я группа — 85 (28,4%); p=0,02; ОШ 0,37; 95% ДИ 0,15—0,92), инфаркта миокарда (1-я группа — 1 (2,2%), 2-я группа — 43 (14,4%); p=0,02; ОШ 0,13; 95% ДИ 0,01—0,98). ЗАКЛЮЧЕНИЕ БПШ с применением техники ex situ характеризуется меньшей частотой тромбоза шунта, ампутации конечности, тенденцией к снижению инфекционных осложнений и всех неблагоприятных кардиоваскулярных событий в госпитальном и отдаленном послеоперационных периодах по сравнению с классическими методами операции (с применением реверсированной аутовены, аутовены, подготовленной in situ, аутовены верхней конечности).

The authors present a 64-year-old patient with lumbar arteriovenous malformation 22´35´50 mm. Open resection under endotracheal anesthesia was carried out. Postoperative period was uneventful. The patient was discharged in 7 days after surgery. Surgical resection of lumbar AVM is preferable because this approach eliminates cosmetic defect without the risk of soft tissue necrosis. Such an invasive intervention can be performed in case of superficial afferent vessel whose ligation will reduce the risk of intraoperative bleeding.