CAROTIDSCORE.RU-The first Russian computer program for risk stratification of postoperative complications of carotid endarterectomy.

GOAL: Presentation of the first Russian computer program (www.carotidscore.ru) for risk stratification of postoperative complications of carotid endarterectomy (CEE). MATERIAL AND METHODS: The present study is based on the analysis of a multicenter Russian database that includes 25,812 patients after CEE operated on from 01/01/2010 to 04/01/2022. The following types of CEE were implemented: 6814 classical CEE with plastic reconstruction of the reconstruction zone with a patch; 18,998 eversion CEE. RESULTS: In the hospital postoperative period, 0.18% developed a lethal outcome, 0.14%-myocardial infarction, 0.35%-stroke. The combined endpoint was 0.68%. For each factor present in patients, a predictive coefficient was calculated. The prognostic coefficient was a numerical indicator reflecting the strength of the influence of each factor on the development of postoperative complications. Based on this formula, predictive coefficients were calculated for each factor present in patients in our study. The total contribution of these factors was reflected in "%" and denoted the risk of postoperative complications with a minimum value of 0% and a maximum of 100%. On the basis of the obtained calculations, a computer program CarotidSCORE was created. Its graphical interface is based on the QT framework (https://www.qt.io), which has established itself as one of the best solutions for desktop applications. It is possible not only to calculate the probability of developing a complication, but also to save all data about the patient in JSON format (for the patient's personal card and his anamnesis). The CarotidSCORE program contains 47 patient parameters, including clinical-demographic, anamnestic and angiographic characteristics. It allows you to choose one of the four types of CEE, which will provide an accurate stratification of the risk of complications for each of them in person. CONCLUSION: CarotidSCORE (www.carotidscore.ru) is able to determine the likelihood of postoperative complications in patients undergoing CEE.

[Subclavian-carotid transposition and subclavian artery stenting for steal-syndrome]. / Podklyuchichno-sonnaya transpozitsiya i stentirovanie podklyuchichnoi arterii v lechenii stil-sindroma.

OBJECTIVE: To analyze in-hospital results of subclavian-carotid transposition and subclavian artery stenting in patients with steal-syndrome. MATERIAL AND METHODS: A retrospective open study included 137 patients with occlusion or severe stenosis of the first segment of subclavian artery and steal-syndrome. The 1st group included 50 patients who underwent stenting or recanalization with stenting of the first segment of subclavian artery between January 2010 and March 2020. The 2nd group included 87 patients who underwent subclavian-carotid transposition between January 2010 and March 2020. RESULTS: There were no in-hospital mortality, myocardial infarction, ischemic stroke or bleeding. In the second group, damage to recurrent laryngeal nerve with irreversible laryngeal paresis occurred in 6.9% of patients, and one patient had brachial plexus neuropathy. One patient developed lymphorrhea with chylothorax accompanied by shortness of breath on exertion. Conservative management with repeated pleural punctures was not accompanied by clinical compensation. The patient was discharged for outpatient treatment. Thromboembolism of the left branch of the aorto-femoral prosthesis and deep femoral artery on the left was diagnosed in the endovascular correction group after implantation of Protege GPS stent (10´60 mm) and post-dilation with a PowerFlex PRO balloon catheter (9´4 mm). Acute ischemia of the left lower limb required thrombectomy with patch repair of deep femoral artery. The patient was discharged after 5 days. In another case, vertebral artery dissection occurred after implantation of Protege GPS stent (10×40 mm) and post-dilatation with a PowerFlex PRO balloon catheter (8´20 mm). In this regard, the patient underwent stenting of the fourth segment of vertebral artery (Endeavor Resolute 4.0´24 mm stent) with post-dilation (Boston Scientific Samurai balloon catheter 0.014´190 cm). The patient was discharged after 3 days. CONCLUSION: Subclavian-carotid transposition and subclavian artery stenting are safe methods of revascularization that are not accompanied by myocardial infarction, ischemic stroke or mortality. However, subclavian-carotid transposition is characterized by higher risk of neurological disorders (laryngeal paresis, phrenic nerve paresis, brachial plexus neuropathy) and wound complications (lymphorrhea, chylothorax). In turn, subclavian artery stenting is associated with the risk of dissection and embolism. Therefore, the choice of treatment strategy in patients with occlusive-stenotic lesions of the first segment of subclavian artery should be personalized and carried out by a multidisciplinary team.

[Long-term results of carotid endarterectomy and carotid artery stenting in patients with high bifurcation of common carotid artery: a multiple-center study]. / Otdalennye rezul'taty karotidnoi endarterektomii i karotidnoi angioplastiki so stentirovaniem u patsientov s vysokim raspolozheniem bifurkatsii obshchei sonnoi arterii. Rezul'taty mnogotsentrovogo issledovaniya.

OBJECTIVE: To analyze in-hospital and long-term results of eversion carotid endarterectomy (CEE), carotid endarterectomy with patch repair and carotid artery stenting (CAS) in patients with high bifurcation of common carotid artery. MATERIAL AND METHODS: A retrospective multiple-center open study included 1983 patients who underwent internal carotid artery (ICA) repair for severe stenosis between 2010 and 2021. Three groups of patients were distinguished depending on revascularization option: group 1 (n=638) - eversion CEE; group 2 (n=351) - CEE with patch repair; group 3 (n=994) - CAS. RESULTS: In-hospital postoperative mortality and incidence of stroke and myocardial infarction were similar. All bleedings (n=39) occurred after CEE. ICA thrombosis was diagnosed in groups 1 and 2 due to intimal detachment after insertion of temporary bypass tube. Incidence of laryngeal paresis, neuropathy of hypoglossal and glossopharyngeal nerves, Horner syndrome, damage to salivary glands was comparable in groups 1 and 2. Long-term mortality was the highest (n=10; 2.8%) after CEE with patch repair due to fatal stroke. In turn, the highest incidence of ICA restenosis and restenosis-induced ischemic stroke was observed after CEE with patch repair and CAS. CONCLUSION: 1. Classical and eversion CEE in patients with high CCA bifurcation is followed by high in-hospital incidence of damage to cranial nerves and salivary glands, laryngeal paresis, Horner syndrome, bleeding and risk of ICA thrombosis. 2. In patients with high CCA bifurcation, CAS and CEE with patch repair are accompanied by high incidence of ICA restenosis, restenosis-induced stroke and mortality in long-term postoperative period. 3. Eversion CEE demonstrates the lowest rates of all adverse cardiovascular events in long-term follow-up period.

[Redo surgery of carotid arteries in patients with contraindications to carotid angioplasty and stenting]. / Redo-khirurgiia sonnykh arterii u patsientov s protivopokazaniiami k karotidnoi angioplastike so stentirovaniem.

AIM: The study was aimed at analysing the in-hospital results of carotid re-endarterectomy and plasty of the zone of reconstruction with a biological patch in patients with haemodynamically significant restenosis and contraindications to carotid angioplasty with stenting. PATIENTS AND METHODS: During the period from 2008 to 2019, we operated on a total of 22 patients presenting with carotid restenosis and found to have contraindications to carotid angioplasty with stenting (an extended lesion, unstable neointima, calcification, pronounced tortuosity). Carotid re-endarterectomy was performed according to the classical technique. The time period after the first intervention to regression of pathology amounted to 48.5±21.3 months. All patients with clinical manifestations of angina pectoris were at the preoperative stage subjected to coronarography, as a result of which in one case a hybrid intervention was performed in the scope of percutaneous coronary intervention and carotid endarterectomy. The endpoints included death, myocardial infarction, acute impairment of cerebral circulation, and lesions of craniocerebral nerves. RESULTS: Carotid re-endarterectomy was most often carried out according to the classical technique with plasty of the zone of reconstruction using a xenopericardial patch. Only in 1 case it was required to perform eversion carotid re-endarterectomy due to tortuosity of the internal carotid artery. During the in-hospital postoperative period no lethal outcomes, myocardial infarctions, nor haemorrhagic complications were registered. One patient was found to develop acute impairment of cerebral circulation. The most frequent complication was unilateral laryngeal paresis caused by lesions of craniocerebral nerves (n=3; 13.6%), with reversible neurological deficit. No cases of either thrombosis/restenosis or elevated pressure gradient in the area of implantation of the xenopericardial patch were revealed. The composite endpoint amounted to 18.2% (n=4). CONCLUSION: The classical carotid re-endarterectomy was not accompanied by cases of thrombosis and restenosis during either the in-hospital or remote period of follow up, however turned out to be associated with a high frequency of the development of complications such as acute impairment of cerebral circulation and lesions of craniocerebral nerves.

[Catheter-directed thrombolysis in iliofemoral thrombosis and aplasia of the inferior vena cava]. / Kateter-napravlennyi trombolizis pri iliofemoral'nom tromboze i aplazii nizhnei poloi veny.

Demonstrated in the article are the results of catheter-directed thrombolysis in a male patient presenting with bilateral acute iliofemoral venous thrombosis on the background of aplasia of the inferior vena cava. The incidence rate of this pathology is specified, with an emphasis on no recommendations on choosing optimal therapeutic strategy in this cohort of patients. The main causes and complications of the disease are described. The realized policy of revascularization demonstrated its safety and efficacy. The chosen method of correction resulted in a successful outcome of treatment, preventing phlegmasia cerulea dolens. This policy can be recommended as most preferred for patients with acute iliofemoral venous thrombosis on the background of aplasia of the inferior venal cava.

[Transposition of internal carotid artery over hypoglossal nerve in eversion carotid endarterectomy]. / Eversionnaya karotidnaya endarterektomiya: transpozitsiya vnutrennei sonnoi arterii nad pod"yazychnym nervom.

OBJECTIVE: To analyze in-hospital and long-term results of eversion carotid endarterectomy (CEE) with transposition of internal carotid artery (ICA) over hypoglossal nerve. MATERIAL AND METHODS: A cohort prospective open-label study included 919 patients with severe ICA stenosis for the period from January 2017 to April 2020. The 1st group (n=172) included patients who underwent eversion CEE with ICA transposition over hypoglossal nerve; the 2nd group (n=747) - who underwent conventional eversion CEE. ICA transposition technique included standard mobilization of the carotid arteries, cross-clamping, arterial wall incision, removal of atherosclerotic plaque and ICA translocation above the hypoglossal nerve for subsequent anastomosis. All patients were examined every 6 months. Mean follow-up period was 17.5±6.9 months. RESULTS: There were no significant between-group differences in cardiovascular morbidity. However, all complications occurred in the 2nd group (traditional eversion CEE). Nevertheless, incidence of adverse events was minimal and combined endpoint did not exceed 0.6% (n=5). Both groups were also comparable by overall incidence of cardiovascular events in long-term period. All ICA restenoses (over 70%) were symptomatic with similar incidence (4 (2.3%) vs. 18 (2.4%), respectively, p=0.83; OR 0.96; 95% CI 0.32-2.88). Mean restenosis-free period was 7.2±2.6 months. In case of significant restenosis, redo CEE with patch repair was performed. There were no cardiovascular complications. All cases of hypoglossal nerve injury occurred in the 2nd group (0 vs. 18 (100%), respectively; p=0.0001; OR 0.003; 95% CI=5.21-0.17) without ICA transposition over the hypoglossal nerve. CONCLUSION: Eversion CEE with ICA transposition over the hypoglossal nerve ensures optimal conditions for successful redo CEE in case of restenosis. This technique facilitates ICA mobilization without hypoglossal nerve injury. This aspect is valuable for successful postoperative outcome and adequate quality of life. ICA transposition is not difficult and does not require additional experience. Transposition per se is not a risk factor of ICA restenosis. Thus, ICA transposition may be routinely recommended in patients eligible for eversion CEE.

[Extended lesion of the internal carotid artery: carotid autotransplantation, creation of a neobifurcation or prosthetic repair?] / Protiazhennoe porazhenie vnutrennei sonnoi arterii: karotidnaia autotransplantatsiia, formirovanie novoi bifurkatsii ili protezirovanie?

AIM: The aim of our investigation was to analyse the results of autotransplantation, creation of a neobifurcation or prosthetic repair of the internal carotid artery during the in-hospital and long-term follow-up periods. PATIENTS AND METHODS: The study included a total of 241 patients presenting with and treated for extended atherosclerotic lesions of the internal carotid artery from 2016 to 2019. The patients were divided into three groups depending on the surgical modality employed: group 1 - autotransplantation of the internal carotid artery (27.8%, n=67), group 2 - creation of a neobifurcation (55.2%, n=133), and group 3 - prosthetic repair of the internal carotid artery (17.0%, n=41). The duration of the postoperative follow-up period amounted to 24.8±11.9 months. The outcome measures selected were as follows: all-cause mortality, myocardial infarction, ischaemic stroke, haemodynamically significant restenosis, and a composite endpoint (death + myocardial infarction + ischaemic stroke + haemodynamically significant restenosis). RESULTS: During the in-hospital postoperative period we registered 1 (2.4%) ischaemic stroke in the group of prosthetic repair, with no significant inter-group difference revealed (p=0.08). In the remote period of follow-up, no statistical differences were revealed for the following outcome measures: all-cause mortality (group 1: 7.5%, n=5; group 2: 10.5%, n=14; group 3: 14.6%, n=6; p=0.49); cardiovascular-related death (group 1: 4.5%, n=3; group 2: 6.7%, n=9; group 3: 12.2%, n=5; p=0.31); myocardial infarction (group 1: 1.5%, n=1; group 2: 3%, n=4; group 3: 4.9%, n=2; p=0.59). However, the patients in the group of prosthetic repair of the internal carotid artery were found to have the highest incidence rates of ischaemic stroke (group 1: 3%, n=2; group 2: 3%, n=4; group 3: 14.6%, n=6; p1-2=0.1; p1-3=0.02; p2-3=0.008), haemodynamically significant restenosis (group 1: 0%, n=0; group 2: 0%, n=0; group 3: 14.6 %, n=6; p1-2>0.99; p1-3=0.000; p2-3=0.000), and higher values of the composite endpoint (group 1: 12 %, n=8; group 2: 16.5%, n=22, group 3: 48.8%, n=20; p1-2>0.99; p1-3=0.000; p2-3=0.000). CONCLUSION: Prosthetic repair of the internal carotid artery for an extended atherosclerotic lesion is a less preferable method compared with autotransplantation and creation of a neobifurcation, as evidenced by the highest incidence rates of ischaemic stroke, haemodynamically significant restenosis, and higher values of the composite endpoint in the remote period of follow up.

[Carotid endarterectomy in a patient with bilateral restenosis of stents in internal carotid arteries]. / Karotidnaia éndarteréktomiia u bol'nogo s dvustoronnim restenozom stentov vo vnutrennikh sonnykh arteriiakh.

The article deals with the results of surgical treatment of a male patient presenting with bilateral restenosis of stents in the internal carotid arteries 11 years after carotid angioplasty with stenting. Described herein are literature reports reflecting the state of the art of the problem, scarcity of studies, as well as some important issues still unresolved. Defined are the main indications for and contraindications to performing this type of reconstruction. The main stages of the operation are demonstrated. This is followed by describing a method of intraoperative protection of the brain, including invasive measurement of retrograde pressure. Besides, the most optimal terms of carrying out the second stage of treatment were determined, eventually demonstrating efficacy and safety of carotid endarterectomy for correction of this condition.

[Treatment of patients with lower limb varicose veins disease]. / Lechenie patsientov s varikoznoi bolezn'iu nizhnikh konechnostei.

Modern data on the prevalence and pathophysiology of lower limb varicose disease are presented. The results of studies of modern approaches to the surgical correction of this state are demonstrated. Conclusions about the unresolved number of problems.

Carotid Enadrterectomy for Thrombosis of the Internal Carotid Artery in Patients With COVID-19.

Analysis of the results of emergency carotid endarterectomy (CEE) against the background of internal carotid artery (ICA) thrombosis in the acute period of acute cerebrovascular accident (ACVA) in patients with COVID-19. During the COVID-19 pandemic (April 1, 2020-May 1, 2021), 43 patients with ICA thrombosis and a positive polymerase chain reaction (PCR) result for SARS-CoV-2 were included in this prospective study. In all cases, CEE was performed in the acutest period of ACVA. These patients were included in group 1. The comparison group was represented by 89 patients who underwent CEE in the acute period of stroke, in the period before the COVID-19 pandemic (April 1, 2019-March 1, 2020). According to laboratory parameters, patients with COVID-19 had severe coagulopathy (with an increase in D-dimer: 3832 ± 627.2 ng/mL, fibrinogen: 12.6 ± 3.1 g/L, prothrombin: 155.7 ± 10, 2%), inflammatory syndrome (increased ferritin: 646.2 ± 56.1 ng/mL, C-reactive protein: 161.3 ± 17.2 mg/L, interleukin-6: 183.3 ± 51.7 pg/mL, leukocytosis: 27.3 ± 1.7 10E9/L). In the hospital postoperative period, the groups were comparable in terms of the incidence of deaths (group 1: 2.3%, n = 1; group 2: 1.1%, n = 1; P= 0.81; OR=2.09; 95 % CI = 0.12-34.3) myocardial infarction (group 1: 2.3%, n = 1; group 2: 0%; P= 0.7; OR = 6.3; 95% CI = 0.25-158.5), CVA (group 1: 2.3%, n = 1; group 2: 2.2%, n = 2; P= 0.55; OR = 1.03; 95% CI = 0,.09-11.7). ICA thrombosis and hemorrhagic transformations were not recorded. However, due to severe coagulopathy with ongoing anticoagulant/antiplatelet therapy, patients with COVID-19 more often developed bleeding in the operation area (group 1: 11.6%, n = 5; group 2: 1.1%, n = 1; P= 0.02; OR = 11.5; 95% CI = 1.3-102.5). In all cases, the flow of hemorrhagic discharge came from the drainage localized in the subcutaneous fat. This made it possible to remove skin sutures in a dressing room, suturing the source of bleeding and applying secondary sutures under local anesthesia. Emergency CEE in the acute period of stroke is an effective and safe method of cerebral revascularization in case of ICA thrombosis in conditions of COVID-19.

[Carotid endarterectomy in patients with internal carotid artery thrombosis in the acutest period of ischemic stroke with COVID-19]. / Karotidnaya endarterektomiya u patsientov s trombozom vnutrennei sonnoi arterii v ostreishem periode ishemicheskogo insul'ta na fone COVID-19.

OBJECTIVE: Analysis of the results of emergency carotid endarterectomy (CEE) in internal carotid artery (ICA) thrombosis in the acute period of acute cerebrovascular accident (ACVI) in patients with COVID-19. MATERIAL AND METHODS: During the COVID-19 pandemic (April 1, 2020 - May 1, 2021), 43 patients with ICA thrombosis and a positive polymerase chain reaction (PCR) result for SARS-CoV-2 were included in this prospective study. In all cases, CEE was performed in the acutest period of ACVA. These patients were included in group 1. The comparison group was represented by 89 patients who underwent CEE in the acute period of stroke, in the period before the COVID-19 pandemic (April 1, 2019 - March 1.2020). RESULTS: In the hospital postoperative period, the groups were comparable in terms of the incidence of deaths (group 1: 2.3%, n=1; group 2: 1.1%, n=1; p=0.81; OR=2.09; 95% CI=0.12-34.3) myocardial infarction (group 1: 2.3%, n=1; group 2: 0%; p=0.7; OR=6.3; 95% CI=0.25-158.5), CVA (group 1: 2.3%, n=1; group 2: 2.2%, n=2; p=0.55; OR=1.03; 95% CI=0.09-11.,7). ICA thrombosis and hemorrhagic transformations were not recorded. However, in view of severe coagulopathy with ongoing anticoagulant/antiplatelet therapy, patients with COVID-19 more often developed bleeding in the operation area (group 1: 11.6%, n=5; group 2: 1.1%, n=1; p=0.02; OR=11.5; 95% CI=1.3-102.5). CONCLUSION: Emergency CEE in the acute period of stroke is an effective and safe method of cerebral revascularization in case of ICA thrombosis in conditions of COVID-19.

[A multicenter study on the influence of different kinds of carotidal endarterectomy on the course of resistant arterial hypertension]. / Mnogotsentrovoe issledovanie vliyaniya razlichnykh vidov karotidnoi endarterektomii na techenie rezistentnoi arterial'noi gipertenzii.

OBJECTIVE: To analyze the dynamics of systolic blood pressure (SBP) and the results of various types of carotid endarterectomy (CEE) in patients with resistant arterial hypertension (RAH). MATERIALS AND METHODS: The study included 1577 patients with hemodynamically significant stenosis of the internal carotid artery (ICA) and RAH for more than 3 years. Patients were enrolled from January 2014 to December 2020. Depending on the implemented revascularization strategy, 5 groups were formed: group 1 (n=289 (18.3%)) with classical CEE with plasty of the reconstruction zone with a patch, group 2 (n=472 (29.9%)) with eversional CEE with cut-off of carotid glomus (CG); group 3 (n=109 (6.9%)) with the formation of a new bifurcation; group 4: (n=117 (7.4%)) with autoarterial reconstruction; group 5: (n=590 (37.4%)) with glomus-saving CEE. RESULTS: In the postoperative period, no significant differences were obtained in the frequency of deaths (0.34% for group 1; 0.63% for group 2; 0% for groups 3, 4 and 5), myocardial infarction (0.34%, 0.84%, 1.83, 0.85%, 0.33%, respectively); ischemic stroke (0.34%, 1.27%, 0.91%, 0.85%, 0.17%, respectively), hemorrhagic transformation (0%, 0.84%, 0.91%, 0.85%, 0%, respectively). However, according to the frequency of the combined endpoint (death + myocardial infarction + ischemic stroke + hemorrhagic transformation), the lowest rates were observed in the group of classical carotid endarterectomy with plasty of the reconstruction zone with a patch and glomus-sparing CEE (1.03%, 3.6%, 3.67%, 2.56%, 0.5%, respectively). This is due to the absence of cases of labile AH and hypertensive crises among patients of groups 1 and 5, which was ensured by the preservation of carotid glomus (CG). As a result, the number of patients with 2 and 3 degrees of hypertension in these groups decreased statistically significantly. The vast majority of patients after these operations achieved a stable target SBP. In groups 2, 3, and 4, there was a statistically significant increase in the number of patients with 2 and 3 degrees of AH, which is associated with excision of the CG. CONCLUSION: Classical CEE and glomus-sparing CEE techniques make it possible to achieve a stable target SBP level in patients with RAH as a result of CG preservation. Removal or traumatization of the latter during eversional CEE, the formation of a new bifurcation, autoarterial reconstruction is accompanied by the development of labile hypertension, an increase in the degree of hypertension and a high risk of hemorrhagic transformation in the brain. Thus, the most effective and safe types of CEE in the presence of RAH are classical CEE with plasty of the reconstruction zone with a patch and glomus-sparing CEE.