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.

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.

[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.

[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.

[The study of microcirculation in walls of chambers of the heart in patients with aortic stenosis in dependence on heart failure stage].

We studied microcirculatory blood flow (MBF) by laser Doppler flowmetry (LDF) in 52 patients with stage III-IV aortic stenosis (AS) and class II-IV chronic heart failure (CHF). MBF was assessed in walls of right and left cardiac chambers before and after correction of the defect. Aim of this study was to assess functional state of MBF in walls of different chambers of the heart before and after defect correction in patients with AS at various stages of CHF. We distinguished 2 groups of patients: group 1 with class II CHF, group 2 with class III-IV CHF. In group 2 compared with group 1 before and after AS correction of AS we found the lowest level of MBF in walls of left cardiac chambers and right atrium and highest parameters of the left ventricular and atrial function according to echocardiography data. Progression of anatomic-functional changes of left ventricle at the background of AS and development of CHF is characterized by lowering of MBF volume velocity in walls of left cardiac chambers.