Амбулаторная хирургия最新文献

{"title":"The thrombodynamics test as a new opportunity for a polyclinic surgeon to monitor postoperative venous thromboembolic complications","authors":"A. A. Babitskiy, A. N. Tkachenko, V. V. Davydenko, N. N. Lebedev, A. N. Shikhmetov, M. Yu. Korol","doi":"10.21518/akh2023-025","DOIUrl":"https://doi.org/10.21518/akh2023-025","url":null,"abstract":"Introduction. Postoperative venous thromboembolic complications – a frequent and difficult to control problem for a polyclinic surgeon. Aim. To study and evaluate the possibilities of using the thrombodynamics test for the control of postoperative venous thromboembolic complications. Materials and methods. In 120 patients with common surgical pathology (chronic calculous cholecystitis, external abdominal hernias and varicose veins of the lower extremities), who underwent planned surgical treatment, stratified into risk groups of postoperative venous thromboembolic complications: low, moderate and high, in the postoperative period for 2–3, 7–9, 14–16, 30 days, a study of D-dimer, thrombodynamics test was conducted in parallel with ultrasound examination of the veins of the lower extremities. Results. It was revealed that hypercoagulation according to the thrombodynamics test was present in 34.2% of patients already at the first study, an increase in D-dimer was noted in 28.3% of patients at late follow-up, venous thrombosis was detected on ultrasound in 15% of the studied 6 people from each risk group within 2–15 days after surgery, carried in 83.3% The cases were asymptomatic, localized mainly in the deep veins of the lower leg and were always combined with hypercoagulation according to the thrombodynamics test and an increased level of D-dimer. It was noted that hypercoagulation against the background of the use of standard doses of anticoagulants in 61% of cases takes a positive trend, and in 39% remains unchanged. Discussion. Hypercoagulation recorded by the thrombodynamics test in the first days after surgery indicates insufficient effectiveness of standard thromboprophylaxis in the perioperative period. An increase in the D-dimer cannot be used as a prognosis of a prethrombotic state. Conclusions. Hypercoagulation as a precursor of venous thrombosis is well detected by the thrombodynamics test, its dynamics reflects the individual effectiveness of the use of anticoagulants, which justifies the possibility of using this indicator by a polyclinic surgeon in the control of postoperative venous thromboembolic complications.","PeriodicalId":487540,"journal":{"name":"Амбулаторная хирургия","volume":"244 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136063665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A histological study of vessel wall reaction after endovenous ultrasound ablation in an animal model","authors":"A. V. Gavrilenko, P. E. Vakhratyan, A. G. Arakelyan, A. S. Borde, E. I. Ivanova, S. I. Shchukin, A. V. Samorodov","doi":"10.21518/akh2023-017","DOIUrl":"https://doi.org/10.21518/akh2023-017","url":null,"abstract":"Introduction. Along with the generally accepted thermal methods of saphenous varicose veins ablation, the use of non-thermal and combined methods becomes attractive. Due to the variety of mechanisms of action, low-frequency ultrasound is a promising technology for performing a wide range of minimally invasive intravascular operations, including the treatment of varicose veins. Aim. To elucidate the mechanism of action of a novel endovenous ultrasound ablation method and evaluate its effect on vein wall injury and lumen occlusion in an animal model. Materials and methods. A total of 34 central ear vein (CEV) medial ramus were treated in 17 rabbits according to the follow-up protocol. Six femoral veins from three rabbits enrolled into the acute experiment were harvested 45 min after the procedure. All treated CEV medial ramus in the follow-up experiment were divided into four treatment groups with an observation time of: (0) 30 days, control procedure; (1) 60 days, ultrasound ablation; (2) 95 days, ultrasound ablation; (3) 138 days, ultrasound ablation. Results. Occlusion was achieved in all but one CEV medial ramus (29/30; 97%) treated with ultrasound. Histologic examination of treated veins showed heat- and mechanical-induced changes in the vein wall, such as abrasion of the endothelium and fibrotic lesions in the tunica media and tunica adventitia. The occluded segments consisted mainly of cellular fibrotic material. In the acute group, histological evidence of damage to all vessel wall layers was found. Discussion. Ultrasound ablation results in homogeneous and uniform damage to the venous wall. The results of this study suggest that the ultrasound treatment leads to venous occlusion by the additive thermomechanical mechanism of damage to the vessel wall. Conclusions. Endovenous ultrasound ablation showed a similar pattern of thermal damage as endovenous laser (EVLA) and radiofrequency ablation (RFA) and damage to the endothelium as mechanochemical ablation (MOCA). Four months after ultrasound ablation, the occlusion rate was 90%.","PeriodicalId":487540,"journal":{"name":"Амбулаторная хирургия","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135351698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}