Browsing by Author "Davidović, Lazar (7006821504)"

Introduction This paper aimed to present a hybrid approach as a less invasive and acceptable treatment. Case outline Because of respiratory failure, the patient was deemed at high risk for open repair. Standard thoracic endovascular aortic repair (TEVAR) was unfeasible, so the patient underwent the hybrid procedure – partial aortic arch debranching at the first stage, followed by visceral debranching and endovascular exclusion of thoracic aortic aneurysm as a final procedure. The postoperative course was uneventful and the patient was discharged 10 days after TEVAR and visceral debranching. Conclusion Staged hybrid procedure with combined debranching of the aortic arch and visceral arteries is feasible and should be considered as an alternative treatment option in patients with high-risk for open repair. © 2020, Serbia Medical Society. All rights reserved.

Introduction Kidney anomalies present a challenge even for the most experienced vascular surgeon in the reconstruction of the aortoilliac segment. The most significant anomalies described in the surgery of the aortoilliac segment are a horse-shoe and ectopic kidney. Objective The aim of this retrospective study was to analyze experience on 40 patients with renal anomalies, who underwent surgery of the aortoilliac segment and to determine attitudes on conventional surgical treatment. Methods In the period from 1992 to 2009, at the Clinic for Vascular Surgery of the Clinical Centre of Belgrade we operated on 40 patients with renal anomalies and aortic disease (aneurysmatic and obstructive). The retrospective analysis involved standard epidemiological data of each patient (gender, age, risk factors for atherosclerosis, type of anomaly, type of aortic disease, presurgical parameter values of renal function), type of surgical approach (laparatomy or retroperitoneal approach), classification of the renal isthmus, reimplantation of renal arteries and perioperative morbidity and mortality. Results Twenty patients were males In 30 (70%) patients we diagnosed a horse-shoe kidney and in 10 (30%) ectopic kidney. In the cases of ruptured aneurysm of the abdominal aorta the diagnosis was made by ultrasound findings. Pre-surgically, renal anomalies were confirmed in all patients, except in those with a ruptured aneurysm who underwent urgent surgery. In all patients we applied medial laparatomy, except in those with a thoracoabdominal aneurysm type IV, when the retroperitonal approach was necessary. On average the patients were under follow-up for 6.2 years (from 6 months to 17 years). Conclusion Under our conditions, the so-called double clamp technique with the preservation of the kidney gave best results in the patients with renal anomalies and aortic disease.

Background and Aims: The principal biologic effects of the renin-angiotensin system are mediated by activation of the AT1R receptor. The microRNA miR-155 regulates AT1R expression, with both its, and AT1R's activity, linked to atherosclerosis. Target sites for miR-155 lie within the 3' UTR of the human AT1R gene, and include the AT1R A1166C polymorphism. Thus far, only levels of circulating miR-155 have been investigated with respect to A1166C genotypes. We hypothesized that the A1166C polymorphism could correlate with different, ultra-sonographically defined plaque phenotypes, as well as with an altered expression of AT1R mRNA and protein in human carotid plaques (CP), and altered expression of miR-155 in patients with advanced atherosclerosis. Methods: Our study cohort comprised 411 patients with advanced carotid atherosclerosis (298 hyperechoic; 113 hypoechoic plaques). PCR analyses identified A1166C genotypes; quantitative real-time PCR determined AT1R and miR-155 expression levels, with AT1R protein expression evaluated by western blot. Results: Genotypes containing the C allele bore a significant association with the hypoechoic plaque phenotype (adjusted OR 1.87, 95% CI 1.16-3.00, p = 0.01). The expression of AT1R mRNA and miR-155 were significantly up-regulated in the CPs of CC genotype carriers compared to the AA/AC genotypes (p = 0.032, p = 0.015, respectively). AT1R protein expression was also significantly higher for CC genotypes (p < 0.01). Conclusion: Our results indicate that the AT1R A1166C polymorphism impacts an ultrasonographically-defined human plaque phenotype, with intra-plaque AT1R and miR-155 expression altered in advanced carotid atherosclerosis. Validation and replication of these data should contribute to an improved personalized therapy with which to prevent carotid atherosclerosis. © 2016 Elsevier Ireland Ltd.

Introduction. Endovascular stent-graft placement has emerged as a minimally invasive alternative to open surgery for the treatment of aortic aneurysms and dissections. There are few reports on stent graft infections and aortoenteric fistula after endovascular thoracic aortic aneurysm repair, and the first multicentric study (Italian survey) showed the incidence of about 2%. Case report. We presented a 69-year-old male patient admitted to our hospital 9 months after thoracic endovascular aortic repair, due to severe chest pain in the left hemithorax and arm refractory to analgesic therapy. Multislice computed tomography (MSCT) showed a collection between the stent graft and the esophagus with thin layers of gas while gastroendoscopy showed visible blood jet 28 cm from incisive teeth. Surgical treatment was performed in collaboration of two teams (esophageal and vascular surgical team). After explantation of the stent graft and in situ reconstruction by using Dacron graft subsequent esophagectomy and graft omentoplasty were made. After almost four weeks patient developed hemoptisia as a sign of aortobronchial fistula. Treatment with implantation of another aortic cuff of 26 mm was performed. The patient was discharged to the regional center with negative blood culture, normal inflammatory parameters and respiratory function. Three months later the patient suffered deterioration with the severe weight loss and pneumonia caused by Candida albicans and unfortunately died. The survival time from the surgical treatment of aortoesophageal fistula was 4 months. Conclusion. Even if endovascular repair of thoracic aortic diseases improves early results, risk of infection should not be forgotten. Postoperative respiratory deterioration and finally hemoptisia could be the symptoms of another fistula. © 2016, Vojnosanitetski Pregled. All rights reserved.

Background/Aim. To promote better treatment outcome, as well as economic benefit it is very important to find out patients with simultaneous occurrence of both aortic and arterial aneurysms. The aim of this prospective study was to determine the frequency and factors affecting femoropopliteal (F-P) segment aneurysms appearance in patients with abdominal aortic aneurysms (AAA). Methods. This study included 70 patients who had underwent elective or urgent surgery of AAA from January 1, 2006 to December 31, 2007. After ultrasonographic examination of F-P segment, all the patients were divided into two groups - those with adjunctive F-P segment aneurysm (n = 20) and the group of 50 patients witho no adjunctive F-P segment aneurysm. In both groups demographic characteristics (gender, age), risk factors (diabetes mellitus, elevated serum levels of cholesterol and triglycerides, arterial hypertension, smoking, obesity) and cardiovascular comorbidity (cerebrovascular desease, ischemic heart desease) were investigated. Results. Twenty (28.57%) patients who had been operated on because of AAA, had adjunctive aneurysmal desease of F-P segment. Diabetes was no statistically significantly more present among the patients who, beside AAA, had adjunctive aneurismal desease of F-P segment (χ 2 = 0.04; DF = 1; p > 0.05). Also, in both groups there was no statistically significant difference in gender structure (χ 2 = 2. 05; DF = 2; p > 0.05), age (χ 2 = 5. 46; DF = 1; p > 0.05), total cholesterol level (χ 2 = 0.89; DF = 1; p > 0.05) and triglyceride (χ 2 = 0.89; DF = 1; p > 0.05) levels, the presence of arterial hypertension (χ 2 = 1.38; DF = 2; p > 0.05), smoking (χ 2 = 1.74; DF = 1; p > 0.05), obesity (χ 2 = 1.76; DF = 1; p > 0.05) and presence of cerebrovascular desease (χ 2 = 2.34; DF = 1; p > 0.05). Conversly, ischemic heart desease was statistically significantly more present among the patients who, beside AAA, had adjunctive aneurismal desease of F-P segment (χ 2 = 5.45; DF = 1; p < 0.05). Conclusion. Twenty patients, beside AAA, had adjunctive F-P segment aneurysm. The results of this study suggest the necessity of preforming ultrasonographic examination of F-P segment in all patients with proven AAA.

Objective: Matrix metalloproteinases (MMPs) are involved in the remodeling of the extracellular matrix in the arterial wall. Collagen I is associated with vascular smooth muscle cell (VSMC) migration and monocyte differentiation. MMP-8 is expressed in atherosclerotic plaque and preferentially cleaves collagen type I. The aim of this study was to investigate the associations of two MMP-8 promoter polymorphisms, rs11225395 (-799. C/T) and rs1320632 (-381 A/G), with carotid plaque occurrence, and the influence of these polymorphisms on MMP-8 mRNA expression in plaque tissue. Methods: The study included a total of 766 participants: 277 controls and 489 patients with carotid atherosclerosis undergoing endarterectomy. The two investigated polymorphisms were genotyped by PCR-RFLP. The gene expression analysis was performed by real-time PCR. Results: In females only, a significantly higher frequency of the -381G allele was found in patients with carotid atherosclerosis compared to controls (OR, 1.7; 95% CI 1.1-2.9; p=0.001). Significant up-regulation of MMP-8 gene expression was observed in patients carrying the -381G allele compared to those with the AA genotype (mean factor, 3.54; S.E. range, 0.643-19.551; p=0.007). Carotid plaque tissue of the haplotype G -381T -799 showed a significantly higher mRNA level compared with the reference A -381C -799 haplotype (p=0.003). Conclusion: Our preliminary results indicate that MMP-8-381A/G and -799. C/T gene polymorphisms could be risk factors for carotid atherosclerosis. Further validation and functional studies are needed to establish the potential regulatory role of these polymorphisms and their impact on susceptibility to carotid atherosclerosis. © 2011 Elsevier Ireland Ltd.

Introduction. Nutcracker syndrome is defined as a set of signs and symptoms secondary to compression of the left renal vein (LRV) in the acute anatomic angle between the aorta and its superior mesenteric branch. Case report. A 38-year-old woman with asymptomatic and "idiopathic" gross hematuria came to the Clinic for Vascular and Endovascular Surgery, Clinical Center of Serbia in Belgrade. Hematuria was documented by cystoscopy and was found to be unilateral, located to the left urethral orifice. The contrast-enhanced multidetector computed tomography (MDCT) scan showed a stenotic LRV due to the extrinsic compression in the angle formed by the ventral aorta and superior mesenteric artery (MSA), with a jet of contrast through the lumen. Considering the negative investigations for more common causes of hematuria, its incapacitating nature, and above mentioned imaging findings suggestive of the nutcracker syndrome, an indication for the open surgical correction of the LRV entrapment was established. The patient underwent reimplantation of the LRV into the more distal inferior vena cava (IVC), to relocate it out of the constrictive aortomesenteric space. Intraoperative findings were notable for blood flow turbulence in the LRV and hypertrophy of its tributaries, which were ligated. We presented the first published case in the Serbian literature on nutcracker syndrome with hematuria resolved by renocaval reimplantation. Conclusion. This case report demonstrates that renocaval reimplantation, as the open surgery technique, could be the adequate method for resolving gross hematuria in patients with nutcracker syndrome. © 2016, Institut za Vojnomedicinske Naucne Informacije/Documentaciju. All rights reserved.

Background/Aim. Popliteal artery aneurysm (PAA) is the most common peripheral artery aneurysm and the second most common aneurysm following abdominal aortic aneurysm (AAA). Still, its incidence is rare, and treatment is non-standardized. The collection of data in a multicenter registry could improve the diagnosis and treatment of PAA. SerbVasc is a newly established data collection collaboration among vascular centers in Serbia. The aim of this study was to present common surgical practices in the diagnosis and treatment of patients with PAA in hospitals in Serbia. Methods. Vascular centers in Serbia that accepted the invitation collected data retrospectively concerning patients operated on for PAA from 2012 to 2018. Data regarding symptoms, preoperative diagnostics, vascular and endovascular techniques, and postoperative results were collected. This data set was submitted to the VASCUNET international project of PAA for data analysis between the countries. The same data set was used for a detailed analysis of the contemporary treatment of PAA in six hospitals in Serbia: University Clinical Center of Serbia, “Dedinje” Cardiovascular Institute, Military Medical Academy, University Clinical Center Novi Sad, University Clinical Center Niš, and General Hospital Užice. Results. From 2012 to 2018, in six hospitals in Serbia, data for 342 procedures on treating PAA were collected for 329 (96.2%) men and only 13 (3.8%) women. The incidence of PAA repair was 6.8 operations per million inhabitants a year. The mean age of patients was 64.34 years (ranging from 29 to 87). A total of 223 (65.8%) elective procedures were performed. Amputation and hospital survival were considered the main outcomes. Thrombosis was recorded in 110 (32.5%) patients as a cause for surgery, and rupture was recorded in 5 patients. The mean diameter of the aneurysm was 35.3 mm, and a slightly larger diameter was recorded in ruptured aneurysms – 43.8 mm on average. Both synthetic and vein grafts were used in elective and urgent procedures equally. Endovascular procedures were performed in 6 (1.8%) cases. Conclusion. This study confirms the importance of registry-based collection of data and their analysis. It showed that the national incidence of PAA in Serbia is low and that well-organized, even institution-based, screening algorithms should improve identifying such patients and increase the number of electively treated PAA. Educating vascular surgeons to use the posterior approach could improve vascular healthcare. © 2023 Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved.

Endovascular aortic/aneurysm repair (EVAR) was introduced into clinical practice at the beginning of the nineties. Its fast development had a great influence on clinicians, vascular surgeons and interventional radiologists, educational curriculums, patients, industry and medical insurance. The aim of this paper is to present the contribution of clinicians and industry to the development and advancement of endovascular aortic repair over the last 20 years. This review article presents the development of EVAR by focusing on the contribution of physicians, surgeons and interventional radiologists in the creation of the new field of vascular surgery termed hybrid vascular surgery, and also the contribution of technological advancement by a significant help of industrial representatives - engineers and their counselors. This article also analyzes studies conducted in order to compare the successfulness of EVAR with up-to-now applied open surgical repair of aortic aneurysms, and some treatment techniques of other aortic diseases. During the first two decades of its development the EVAR method was rapidly progressing and was adopted concurrently with the expansion of technology. Owing to large randomized studies, early and long-term results indicate specific complications of this method, thus influencing further technological improvement and defining risk patients groups in whom the use of the technique should be avoided. Good results are insured only in centers, specialized in vascular surgery, which have on their disposal adequate conditions for solving all complications associated with this method.

Introduction Femoro-femoral crossover bypass is an extraanatomic reconstruction used for revascularization of lower limb with contralatateral femoral artery as an inflow vessel, and the graft placed in the suprapubic region. We perform this procedure when anatomic reconstruction is not possible or is contraindicated. Objective To analyze the influence of different risk factors on early patency of femoro-femoral crossover bypass. Methods This retrospective study analyzed the results of 88 femoro-femoral bypass grafting during an 11-year period. There were 66 (75%) males and 22 (25%) females of average age 64.93 years (42-79 years). In 76 patients the operations were performed due to critical limb ischemia. Revascularization was urgent in 12 patients, while 76 patients were elective. Dacron prosthesis was used in 81 patients, while PTFE was used in 7 patients. Statistical analysis was made by logistic regression. Results During hospitalisation the graft remained patent in 82 patients, and graft thrombosis occurred in 6 patients. Limb salvage rate was 90.91%. Early morbidity rate (within the first postoperative month) was 13.64%, while early mortality rate was 4.55%. Using logistic regression we established that early graft patency was statistically more significant in males (p<0.05). Age (p=0.07) and hypertension (p=0.08) appeared to be predicting influence of the graft patency on the border of the accepted statistical significance level. Conclusion Femoro-femoral crossover bypass is a good alternative for revascularization in high risk patients for standard anatomic reconstructions due to comorbid conditions or local problems.

Background The angiotensin II type 2 receptor (AT2R) -1332 A/G polymorphism has been denoted as functional and associated with certain cardiovascular disease phenotypes. However, there are no studies considering the association of this gene polymorphism with carotid atherosclerosis (CA) and cerebrovascular events. Therefore, the aim of our study was to investigate a possible association of the AT2R -1332 A/G polymorphism with the occurrence of carotid plaques (CPs) and history of cerebrovascular insult (CVI) in advanced CA. Methods The study group included 381 controls and 509 patients with CA consecutively admitted for endarterectomy. Genotyping was determined by polymerase chain reaction-restriction fragment length polymorphism method. The association was analyzed separately for males and females because the AT2R gene is located on the X chromosome. Results The AT2R -1332 GG genotype was associated with the advanced CA in the female study group (recessive model of inheritance, AA+AG versus GG; adjusted odds ratio [OR] = 2.25; 95% confidence interval [CI] 1.17-4.33; P =.01). In the male subgroup of patients with CA, the significant overrepresentation of G/- hemizygote was detected in patients with CVI compared to male patients without this event (crude OR = 2.05, 95% CI 1.20-3.50, P =.008). Conclusions This study suggests a gender-specific association between the AT2R -1332 A/G polymorphism and the occurrence of CP and the history of CVI in advanced CA, but further replication studies are needed. © 2016 National Stroke Association.

Objective: To describe a rare case of acute presentation of papillary thyroid carcinoma (PTC). Clinical Presentation and Intervention: A 19-year-old male presented with an expanding cervical mass following blunt trauma. A computed tomography scan revealed a mass suspected to be hematoma that was compressing the vessels and thereby deviating the trachea. Immediate surgery was performed. Neither vascular injury nor active bleeding was seen; instead, a solid, hematoma-like tumefaction in the right thyroid lobe was revealed. A total thyroid lobectomy was performed. A histologic paraffin section confirmed a PTC that was permeated by hematoma. Conclusion: This was a unique case of an acute, life-threatening presentation of previously asymptomatic PTC in an adolescent. © 2016 S. Karger AG, Basel.

The types of vascular accesses for hemodialysis (HD) include the native arteriovenous fistula (AVF), arteriovenous graft (AVG) and central venous catheter (CVC). Adequately matured native AVF is the best choice for HD patients and a high percentage of its presence is the goal of every nephrologist and vascular surgeon. This paper analyses the number and type of vascular accesses for HD performed over a 10-year period at the Clinical Center of Serbia, and presents the factors of importance for the creation of such a high number of successful native AVF (over 80%). Such a result is, inter alia, the consequence of the appointment of the Vascular Access Coordinator, whose task was to improve the quality of care of blood vessels in the predialysis period as well as of functional vascular accesses, and to promote the cooperation among different specialists within the field. Vascular access is the “lifeline” for HD patients. Thus, its successful planning, creation and monitoring of vascular access is a continuous process that requires the collaboration and cooperation of the patient, nephrologist, vascular surgeon, radiologist and medical personnel. © 2015, Serbia Medical Society. All rights reserved.

Background/Aim. Open thoracoabdominal aortic aneurysm (ThAAAs) repair is a challenging mission. Total endovascular approach is performed at selected institutions in developing countries, however these are not generalizable. Hybrid procedures offer an alternative approach. The aim of this study was to present our results of the ThAAA hybrid treatment and a literature review. Methods. This is a retrospective study of all patients that underwent the hybrid ThAAA repair at our institution between January 2011 and January 2018. Hybrid ThAAA repair was done as a two-staged procedure – open visceral debranching followed by stent-graft placement (TEVAR). The following data from eligible studies were extracted and analyzed: first author, publication year, patient sample, 30-day/in-hospital mortality, permanent paraplegia rate, presence of endoleaks and graft patency after the follow-up period, overall survival and mean follow-up period. Results. Seven patients underwent the hybrid ThAAA repair at our institution. Neither intra-operative death nor technical failure due to TEVAR was observed. Mean follow-up rate after discharge was 51.71 months [95% confidence interval (CI): 14.67–88.74 months]. At the time of the follow-up, all bypasses were patent and no prosthesis migration was documented. After one year, a case of type Ib endoleak was identified and treated successfully. Twenty-five studies were eligible for the literature review. Primary technical success was 91.69% (95% CI: 85.34–97.24%). Mean percentage of permanent paraplegia was 5.27% (95% CI: 3.55–7.01%). Visceral graft patency during the mean follow-up of 27.54 months (95% CI: 17.41–37.66 months) was 94.5% (95% CI: 92.5–96.5%). Mean pooled percentage rate of overall endoleaks during the follow-up period was 16.72% (95% CI: 11.15–22.29%). Analysis revealed 15.32% (95% CI: 11.04–19.61%) of 30-day/in-hospital mortality and 65.98% (95% CI: 58.15– 73.81%) of overall survival after the follow-up period. Conclusion. Although thought as less invasive, the hybrid ThAAA repair is still associated with a considerable morbidity and mortality. © 2019, Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved.

Introduction Graft infection is rightly considered one of the severest complications of vascular reconstruction. Treatment is non-standardized and associated with high mortality and morbidity rates. The choice of therapeutic modality depends upon variety of factors. One increasingly used option is in situ replacement of the infected prosthesis with the arterial allograft. Objective The aim of this prospective nonrandomized study was to evaluate the effectiveness and durability of fresh arterial allograft as in situ substitute for the infected vascular prosthesis. Methods During period of 2002-2005, 18 patients with the synthetic vascular graft infection underwent partial or complete prosthesis removal and secondary in situ reconstruction using the fresh arterial allograft, preserved under hypothermic conditions in buffered saline solution with an addition of antibiotics. Results In 14 male and 4 female patients, mean-aged 62 years, 8 aortic and 10 peripheral arterial infected prostheses werepartially or completely replaced with the allograft. Operative mortality was 27.8% and amputation rate was 22.2%. Systemic sepsis at initial presentation and highly virulent nature of causative microorganisms were identified as significant negative prognostic factors (χ2 test,p<0.05) test, p<0.05). During the long-term follow-up (mean 47 months), allograft aneurysm developed in three patients, requiring allograft explantation, followed in two cases by tertiary prosthetic reconstruction. Conclusion Substitution of the infected prosthesis with the arterial allograft could be successful if used selectively - for less virulent and localized infections of extracavitary grafts. Close follow-up is mandatory for timely diagnosis of late homograft lesions and its eventual replacement with more durable prosthetic material.

Background Aortobifemoral bypass (ABFB) for aortoiliac occlusive disease (AIOD) is traditionally accompanied by substantial groin incisional morbidity, which poses a threat to an underlying prosthetic graft. We performed a study to investigate the frequency and define the clinical course and significance of such problems.; Methods One hundred twenty consecutive patients undergoing primary elective ABFB for AIOD were enrolled in a prospective study. The healing of groin wounds was systematically assessed, the occurrence of incisional complications of any type noted, and their clinical course and economic consequences documented and analyzed.; Results Early postoperative complications (30 days) affected 35 (15%) groin wounds in 29 (24.8%) patients. Lymph fistulas/lymphoceles were observed in 15 (6.4%), infection in 11 (4.7%), and noninfectious wound dehiscence in 9 (3.8%) of groin incisions. The only significant predictor of groin healing impairment was preoperative length of stay. Groin incision-related morbidity significantly increased the duration and cost of hospitalization. Sixty percent of groin healing problems were diagnosed after discharge and they represented the most common cause for early readmissions.; Conclusions The incidence of groin wound complications after ABFB is considerable, their financial impact significant, and delayed onset frequent. Femoral incisional morbidity after ABFB still represents an unremitting nuisance, necessitating further improvements in preventive strategies and techniques and strict adherence to conventional ones, including the minimization of preoperative length of stay. © 2014 Elsevier Inc. All rights reserved.

[No abstract available]

Introduction Intramural haematoma (IMH) and penetrating aortic ulcers (PAU) are the frequent cause of acute aortic syndrome that is disclosed with a rising frequency due to the development of new diagnostic methods. Different symptoms contribute to clinical misdiagnosis, while changeable locations and unpersuasive diameter can lead the radiologists to underestimate such changes. The outcome of PAU and IMH differs, and for the time being there are no data on prognostic factors. The diversity of symptoms and disease course is presented in four cases with different manifestations, treatment and outcome. Outline of Cases Two patients with IMH were treated conservatively due to the process extensiveness and its morphology. One patient had a complete restitution, while the other had progression of the disease. Other two patients with PAU were treated by surgery (stent graft implantation) according to the morphology and diameter of the aorta. Conclusion IMH and PAU should be suspected in patients with unclear clinical presentation (back and abdominal pains). Although outcome and complications of these diseases are well known, their incidence has not been fully studied. Endovascular treatment is less invasive and followed by a potentially lower rate of complications. However, usage of this method is justifiable only in patients with associated complications.

The objective of this study was to assess the clinical and financial outcomes of intraoperative cell salvage (ICS) during abdominal aortic surgery. In this study, 90 patients were operated on with the use of ICS (group 1, prospective) and 90 patients without ICS (group 2, historical control). According to the type of operation, the patients were subdivided into three consecutive 30-patient subgroups (1, aortoiliac occlusive disease [AOD]; 2, elective abdominal aortic aneurysm [AAA]; or 3, ruptured abdominal aortic aneurysm [RAAA]). Transfusion requirements and postoperative complications were recorded. The total amounts of perioperatively transfused allogeneic blood were higher in all patient subgroups that underwent surgery without ICS (p 5.0032). In the ICS group, 50% of AOD patients and 60% of elective AAA patients received no allogeneic transfusions. There were no significant differences in the incidence of postoperative complications in any group examined. ICS significantly reduced the necessity for allogeneic transfusions during abdominal aortic surgery. ICS use was most valuable in urgent situations with high blood losses, such as RAAA, for which only small amounts of allogeneic blood were initially available. In patients with more than 3 units of autologous blood reinfused, this method was cost effective. © BC Decker Inc. All rights reserved.

Introduction/Objective The objective was to present the results and technical considerations from high-volume center when performing late open surgical conversion (LOSC) after endovascular aneurysm repair (EVAR) in ruptured abdominal aortic aneurysm (RAAA) patients. Methods This was a single center retrospective study. LOSC was performed whenever eventual endovascular reintervention failed, was not feasible due to hostile anatomy and unavailability of specific endograft materials, or when patient was hemodynamically unstable necessitating emergent surgery. Results All previously implanted EVARs had bimodular configuration with suprarenal fixation. Total endograft explantation was performed in 40% of patients. Hospital mortality was 20%. Both patients who died had total endograft explantation with supraceliac clamp lasting more than 30 minutes. 30-day mortality was 30%, with one more patient who died from pulmonary embolism after hospital discharge and two hospital deaths were due to myocardial infarction. Conclusion LOSC due to RAAA after previous EVAR carries greater mortality for the patient, suggesting multifactorial impacts on the outcome. The appropriate choice of surgical method and technical success are of ultimate importance, with total graft explantation having negative impact on patient’s survival. © 2022, Serbia Medical Society. All rights reserved.