Jornal Vascular BrasileiroPub Date : 2025-05-19eCollection Date: 2025-01-01DOI: 10.1590/1677-5449.202400772
Johann Viktor Müller, Wander Eduardo Sardinha, José Manoel da Silva Silvestre, Guilherme da Silva Silvestre, Ualid Saleh Hatoum, Natália Scaneiro Boy Sardinha, Renne Rodrigues, Mariana Ragassi Urbano
{"title":"Complications of use of vascular devices during the covid-19 pandemic: a retrospective cohort.","authors":"Johann Viktor Müller, Wander Eduardo Sardinha, José Manoel da Silva Silvestre, Guilherme da Silva Silvestre, Ualid Saleh Hatoum, Natália Scaneiro Boy Sardinha, Renne Rodrigues, Mariana Ragassi Urbano","doi":"10.1590/1677-5449.202400772","DOIUrl":"10.1590/1677-5449.202400772","url":null,"abstract":"<p><strong>Background: </strong>During the COVID-19 pandemic, there was a substantial increase in the number of severely ill hospitalized patients, which coincided with a corresponding increase in the consumption of medical supplies, including vascular devices. In this context, vascular surgeons perceived an absolute increase in complications associated with their use.</p><p><strong>Objectives: </strong>To calculate the rate of severe complications requiring surgical vascular intervention following vascular device implantation during the COVID-19 pandemic.</p><p><strong>Methods: </strong>A retrospective cohort was conducted to investigate complications associated with vascular devices, such as central venous catheters (CVC), arterial lines, peripherally inserted central catheters (PICCs), totally implantable venous catheters, and semi-implantable venous catheters. The exposed population was defined based on the number of vascular devices used during the pandemic period, identified using the WPDHOSP materials management software. A total of 1,708 consultations with the vascular surgery team were analyzed using Medview medical record software. Patient records were evaluated, selecting those requiring vascular intervention.</p><p><strong>Results: </strong>Out of a total of 16,988 vascular devices used, 25 patients needed surgical or endovascular vascular interventions. This corresponds to a severe complication rate of 0.14%. The complications found were intravascular foreign body, active bleeding, pseudoaneurysm, unintentional arterial implantation, expanding cervical hematoma, acute limb ischemia, and arteriovenous fistula. Patients underwent vascular procedures such as foreign body removal, arterial repair, arterial embolization, endovascular stenting, arterial thrombectomy, and arteriovenous fistula repair.</p><p><strong>Conclusions: </strong>The severe complication rate is consistent with incidences found in the pre-pandemic literature.</p>","PeriodicalId":14814,"journal":{"name":"Jornal Vascular Brasileiro","volume":"24 ","pages":"e20240077"},"PeriodicalIF":0.8,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12092010/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144110853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jornal Vascular BrasileiroPub Date : 2025-05-02eCollection Date: 2025-01-01DOI: 10.1590/1677-5449.202401222
Alexandre Marochi de Castro, Aline Marochi de Castro, Matheus Schimidt Evangelista, Wilson Michaelis, Antônio Lacerda Santos
{"title":"Anterior tibial aneurysm involving the transition to the dorsalis pedis, a therapeutic challenge.","authors":"Alexandre Marochi de Castro, Aline Marochi de Castro, Matheus Schimidt Evangelista, Wilson Michaelis, Antônio Lacerda Santos","doi":"10.1590/1677-5449.202401222","DOIUrl":"https://doi.org/10.1590/1677-5449.202401222","url":null,"abstract":"<p><p>An aneurysm of the anterior tibial artery is always a challenge because it does not provoke symptoms and when a pulsating mass is detected, the aneurysm diameter is already enlarged and there is a greater likelihood of rupture or thrombosis. We report the case of a healthy, 53-year-old, female patient diagnosed with an aneurysm of the anterior tibial artery at the transition to the dorsalis pedis artery, which was identified during ultrasonography performed to investigate plantar fasciitis. The aneurysm was treated by coil embolization and there were no complications.</p>","PeriodicalId":14814,"journal":{"name":"Jornal Vascular Brasileiro","volume":"24 ","pages":"e20240122"},"PeriodicalIF":0.8,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12061359/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143981913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jornal Vascular BrasileiroPub Date : 2025-04-28eCollection Date: 2025-01-01DOI: 10.1590/1677-5449.20240152
Gabriel Marcelino Barbosa, Helyel Rodrigues Gobbo, Lucas Cezar de Oliveira, Anderson Pontes Morales, Gustavo Vieira de Oliveira
{"title":"The impact of resistance training on heart rate variability parameters in physically active young adults.","authors":"Gabriel Marcelino Barbosa, Helyel Rodrigues Gobbo, Lucas Cezar de Oliveira, Anderson Pontes Morales, Gustavo Vieira de Oliveira","doi":"10.1590/1677-5449.20240152","DOIUrl":"https://doi.org/10.1590/1677-5449.20240152","url":null,"abstract":"<p><strong>Background: </strong>Heart rate variability (HRV) parameters are an important indicator of cardiovascular health. While it has been well established that aerobic exercise improves HRV, the effects of resistance training on HRV remain less explored.</p><p><strong>Objectives: </strong>To compare the impact of a resistance training routine on HRV parameters in physically active young adults.</p><p><strong>Methods: </strong>This observational study included 24 participants, 12 who underwent resistance training and a control group of 12 who underwent moderate-intensity exercise. HRV was assessed during a 15-minute resting period in the supine position with a Polar RS800CX heart rate monitor. The analysis encompassed time-domain metrics (root mean square of successive differences between adjacent normal R-R intervals [RMSSD] and the standard deviation of normal-to-normal R-R intervals [SDNN]), frequency-domain metrics (high-frequency and low-frequency indices, both expressed in normalized units, and the low-frequency/ high-frequency ratio), and non-linear metrics (SD of the Poincaré plot width [SD1] and the SD of the Poincaré plot length [SD2]). HRV parameters were processed in Kubios HRV. Statistical analysis included unpaired <i>t</i>-tests, with significance set at p < 0.05.</p><p><strong>Results: </strong>The resistance-trained group demonstrated significantly higher RMSSD (75.3 [SD, 28.5] ms) and SDNN (65.8 [SD, 23.1] ms) values than the untrained group (RMSSD: 37.5 [SD, 19.6] ms; SDNN: 40.2 [SD, 14.2] ms; p < 0.01). SD1 and SD2 were also significantly higher in the resistance training group than the control group, reflecting greater parasympathetic activity.</p><p><strong>Conclusions: </strong>Long-term resistance training was associated with improved parasympathetic modulation, indicating potential cardiovascular benefits and enhanced autonomic function.</p>","PeriodicalId":14814,"journal":{"name":"Jornal Vascular Brasileiro","volume":"24 ","pages":"e20240150"},"PeriodicalIF":0.8,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12061358/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144024956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Horseshoe kidney with triple renal arteries and an aberrant right testicular artery in a male cadaver: case report.","authors":"Dibakar Borthakur, Ritu Sehgal, Neerja Rani, Rajesh Kumar, Rakesh Kumar, Rima Dada","doi":"10.1590/1677-5449.202401172","DOIUrl":"https://doi.org/10.1590/1677-5449.202401172","url":null,"abstract":"<p><p>Horseshoe kidney (HSK) is a rare congenital malformation of the kidney with reported prevalence between 1 in 600 and 1 in 400. A typical HSK has two lower poles fused across the midline in front of the abdominal aorta just below the origin of the inferior mesenteric artery. Very rarely, the upper poles may fuse resulting in a reverse HSK. It is more common in males than in females, but no definite racial or genetic predilection has been established. The HSK is frequently associated with other congenital anomalies, the most common being vascular anomalies. This report describes HSK in a 73-year-old male cadaver, with triple renal arteries and aberrant right testicular artery originating from the ipsilateral renal artery and bilateral extra-renal calyces. Although rare in occurrence, a surgeon must bear in mind that such a combination of anomalies may pose technical difficulties during open or laparoscopic abdominal surgeries.</p>","PeriodicalId":14814,"journal":{"name":"Jornal Vascular Brasileiro","volume":"24 ","pages":"e20240117"},"PeriodicalIF":0.8,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12020740/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143991173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jornal Vascular BrasileiroPub Date : 2025-04-18eCollection Date: 2025-01-01DOI: 10.1590/1677-5449.202401112
Mateus Rodrigues Alessi, Murillo Campigotto Fedatto, Marcos Correa Segalla, Camila do Valle Pavanelo, Rodrigo Barberato, Gessil Dgeovani Carlotto, Graciliano José França
{"title":"Anatomic evaluation of the height of the carotid bifurcation by 4<sup>th</sup> year medical students using vascular ultrasonography.","authors":"Mateus Rodrigues Alessi, Murillo Campigotto Fedatto, Marcos Correa Segalla, Camila do Valle Pavanelo, Rodrigo Barberato, Gessil Dgeovani Carlotto, Graciliano José França","doi":"10.1590/1677-5449.202401112","DOIUrl":"https://doi.org/10.1590/1677-5449.202401112","url":null,"abstract":"<p><strong>Background: </strong>The carotid bifurcation is known for its anatomical variations, involving structures that can be assessed by ultrasound examination. Knowledge of unusual anatomy is crucial in surgical procedures, directly influencing their outcomes.</p><p><strong>Objectives: </strong>To assess whether fourth-year medical students with prior training are capable of performing ultrasound examinations to compare the height of the carotid bifurcation between men and women.</p><p><strong>Methods: </strong>602 carotid bifurcations from 301 participants were identified by ultrasound examinations conducted by medical students after prior training by a professional qualified in vascular ultrasound. After each examination, the results were verified by a specialist physician. Gender, age, and bilateral measurement of the distance between the carotid bifurcation and the ear lobe were compared.</p><p><strong>Results: </strong>The students' measurements differed from the specialist physician's measurements by more than 0.2 cm in just 8 examinations. On the right side, the average height of the carotid bifurcation relative to the earlobe was 5.9 cm, compared to 5.8 cm on the left side, for the whole sample. The distance on the right side was significantly shorter among the women, with an average of 5.6 cm, compared to 6.3 cm among the men (p<0.0001). The distance on the left side was also significantly shorter in women, with an average of 5.4 cm, compared to 6.2 cm among the men (p<0.0001). The difference between sides was not statistically significant between the sexes.</p><p><strong>Conclusions: </strong>After training, medical students demonstrate high accuracy in the technique of measuring the carotid bifurcation height using vascular ultrasound. Men showed a tendency for the bifurcations to be located farther from the earlobe compared to women.</p>","PeriodicalId":14814,"journal":{"name":"Jornal Vascular Brasileiro","volume":"24 ","pages":"e20240111"},"PeriodicalIF":0.8,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12020742/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143972163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jornal Vascular BrasileiroPub Date : 2025-04-18eCollection Date: 2025-01-01DOI: 10.1590/1677-5449.202400852
Gislaine Bonete da Cruz, Cibele Teresinha Dias Ribeiro, Camila Maciel de Oliveira, Rosangela Roginski Rea, Fernando Augusto Lavezzo Dias
{"title":"Prevalence of peripheral arterial disease and its association with claudication in individuals with type 2 Diabetes Mellitus: a prospective cross-sectional study in Brazil.","authors":"Gislaine Bonete da Cruz, Cibele Teresinha Dias Ribeiro, Camila Maciel de Oliveira, Rosangela Roginski Rea, Fernando Augusto Lavezzo Dias","doi":"10.1590/1677-5449.202400852","DOIUrl":"https://doi.org/10.1590/1677-5449.202400852","url":null,"abstract":"<p><strong>Background: </strong>Few studies have described the prevalence of peripheral arterial disease (PAD) in the diabetic population of Brazil.</p><p><strong>Objectives: </strong>To evaluate the prevalence of PAD and its association with the presence of claudication and to compare risk factors for atherosclerosis between subjects with and without PAD.</p><p><strong>Methods: </strong>An analytical, observational, prospective, cross-sectional study was conducted with 150 volunteers with type 2 Diabetes Mellitus (T2DM) treated at a university endocrinology outpatient clinic (Federal University of Paraná, Curitiba, Brazil) and assessed using the ankle-brachial index (ABI) and the Edinburgh Claudication Questionnaire.</p><p><strong>Results: </strong>ABI was evaluated in 143 volunteers (7 did not meet the inclusion criteria). Six individuals had an ABI > 1.4. Excluding these cases and adopting an ABI ≤ 0.9 to identify PAD, the prevalence of PAD was 14.6% (20 of 137), 15.8% in men (6 of 38), and 14.1% in women (14 of 99). We identified twenty-five participants with borderline ABI (18.2%). Claudication was present in 25% of subjects with PAD; however, only 15% had typical claudication. A significant association with the presence of typical claudication was observed only when ABI values were stratified above or below 1.0 (p = 0.04, Fisher's exact test). Participants with PAD were older (median difference: 5.5 years, 95% CI 3.0 to 9.0, p < 0.001) and tended to have a longer duration of DM and higher BMI.</p><p><strong>Conclusions: </strong>The prevalence of PAD in T2DM volunteers with no prior screening was 14.6% and 75% were asymptomatic.</p>","PeriodicalId":14814,"journal":{"name":"Jornal Vascular Brasileiro","volume":"24 ","pages":"e20240085"},"PeriodicalIF":0.8,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12020739/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143967759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ruptured abdominal aortic aneurysm and aortocaval fistula: a highly lethal find.","authors":"Walter Mario Ángel Jaramillo, Marby Sharyne Forero Gaviria, Romario Chanci Drago, Natalia Guzmán Arango, Natalia Barrera Cuesta, Andrés Gilberto Giraldo Echeverri, Verónica Lucía Malabet Mejía","doi":"10.1590/1677-5449.202401342","DOIUrl":"https://doi.org/10.1590/1677-5449.202401342","url":null,"abstract":"<p><p>Within the spectrum of abdominal aortic aneurysm, various complications can arise, including the development of an arteriovenous fistula connecting this major vessel to the infrarenal inferior vena cava. This report presents the case of a 70-year-old man with sudden, intense abdominal pain and syncope, found intraoperatively to have an aortocaval fistula due to a ruptured abdominal aortic aneurysm. The patient underwent emergency care, including fistula closure and placement of a Dacron aortobifemoral graft. Aortocaval fistula is a rare complication of aortic aneurysmal disease, with clinical manifestations varying depending on disease progression, leading to high morbidity and mortality both before and after surgical or interventional treatment.</p>","PeriodicalId":14814,"journal":{"name":"Jornal Vascular Brasileiro","volume":"24 ","pages":"e20240134"},"PeriodicalIF":0.8,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11999540/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144005555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jornal Vascular BrasileiroPub Date : 2025-04-07eCollection Date: 2025-01-01DOI: 10.1590/1677-5449.202401272
Josué Song Der Wu, Lucas Porto Maurity Dias, Giuliano Giová Volpiani, Valter Castelli, Vanessa Prado Dos Santos, Luiz Eduardo Meucci Pereira Nogueira, Walkíria Hueb Bernardi, Roberto Augusto Caffaro
{"title":"Treatment of aortic arch and left subclavian artery aneurysms in two stages using combined surgical approaches: case report.","authors":"Josué Song Der Wu, Lucas Porto Maurity Dias, Giuliano Giová Volpiani, Valter Castelli, Vanessa Prado Dos Santos, Luiz Eduardo Meucci Pereira Nogueira, Walkíria Hueb Bernardi, Roberto Augusto Caffaro","doi":"10.1590/1677-5449.202401272","DOIUrl":"https://doi.org/10.1590/1677-5449.202401272","url":null,"abstract":"<p><p>Aortic arch aneurysms are often asymptomatic, being diagnosed incidentally in tests such as computed tomography, magnetic resonance imaging, or echocardiogram. Conventional treatment involves thoracotomy surgery, although treatment can also be performed using endovascular techniques. This article presents a case report of a complex aneurysm of the aortic arch with involvement of the left subclavian artery. Treatment was initiated with debranching of the supra-aortic trunks by carotid-carotid and carotid-subclavian bypasses, followed by ligation of the common carotid and left subclavian arteries. A second procedure was then needed to construct a surgical vascular conduit using a Dacron graft to obtain access to the aortic arch for the stent graft delivery device, due to the narrow caliber of the external femoral and iliac arteries. This report illustrates a satisfactory outcome in a case of aortic arch aneurysm with complex anatomy.</p>","PeriodicalId":14814,"journal":{"name":"Jornal Vascular Brasileiro","volume":"24 ","pages":"e20240127"},"PeriodicalIF":0.8,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11991671/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143972181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jornal Vascular BrasileiroPub Date : 2025-03-31eCollection Date: 2025-01-01DOI: 10.1590/1677-5449.202400572
Joana Storino, Ana Julia Resende Rocha, Ana Laura Decat Gonçalves, Luisa Reis Braga, Luma Pereira Brandão
{"title":"Anomalous intraosseous venous drainage of pretibial varices: case report.","authors":"Joana Storino, Ana Julia Resende Rocha, Ana Laura Decat Gonçalves, Luisa Reis Braga, Luma Pereira Brandão","doi":"10.1590/1677-5449.202400572","DOIUrl":"10.1590/1677-5449.202400572","url":null,"abstract":"<p><p>Anomalous intraosseous venous drainage causing pretibial varices is a rare and little-known cause of varicose veins in the lower limbs (LL). We report the case of a 49-year-old male patient with chronic pain associated with large pretibial varicose veins and mild edema of the left lower limb, with no skin changes or history of previous treatment. Vascular ultrasound identified a dilatated intraosseous vein of the tibia with reflux draining to an incompetent bone perforating vein and subcutaneous varicose veins. Bone perforating veins must be carefully investigated in the presence of atypical non-saphenous and recurrent varicose veins using vascular ultrasound, which demonstrates the periosteal defect in the tibia and presence of reflux that feeds the pretibial subcutaneous varicosities. Recognizing this rare entity avoids diagnostic errors and is essential for the most appropriate treatment.</p>","PeriodicalId":14814,"journal":{"name":"Jornal Vascular Brasileiro","volume":"24 ","pages":"e20240057"},"PeriodicalIF":0.8,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11961127/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143763390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Variations in the branching pattern of the internal iliac artery and its implications in trauma and surgery - a South Indian cadaveric study.","authors":"Satheesha Nayak Badagabettu, Ashwini Aithal Padur, Surekha Devadasa Shetty","doi":"10.1590/1677-5449.202400752","DOIUrl":"10.1590/1677-5449.202400752","url":null,"abstract":"<p><strong>Background: </strong>The internal iliac artery (IIA) frequently shows variations in its branching pattern. Knowledge of its variations is helpful during gynecological and orthopedic surgical procedures.</p><p><strong>Objectives: </strong>To observe the branching pattern of IIA in the human pelvises and discuss its clinical implications.</p><p><strong>Methods: </strong>The study was conducted on 80 male hemipelvises (40 left halves and 40 right halves). The pelvic halves were obtained by making mid-line saw cuts through formalin embalmed adult human cadavers aged approximately 50-80 years. The IIA were dissected and cleaned. Variations of the internal iliac artery and its branches were noted. Relevant photographs were taken. Results were expressed as percentages.</p><p><strong>Results: </strong>Variations in the branching pattern were observed in 49 (61%) hemipelvises (right: 21, left: 28). Variations were more common (48%) in the branching pattern of the anterior division of IIA than the posterior division (20%). Variations of the main trunk were observed in 29% of cases. In 3% of cases, the IIA did not divide into two divisions. Among the individual branches, the iliolumbar artery showed variations in 29% of cases and the obturator artery in 25%. A common trunk of the internal pudendal and middle rectal arteries was found in 24% of cases and variations of the inferior gluteal artery were seen in 18% of cases.</p><p><strong>Conclusions: </strong>The study showed a high rate of occurrence of variant IIA branching patterns. Understanding the anatomical variations of the IIA and its branches is essential to minimize intraoperative blood loss and other complications during pelvic surgeries.</p>","PeriodicalId":14814,"journal":{"name":"Jornal Vascular Brasileiro","volume":"24 ","pages":"e20240075"},"PeriodicalIF":0.8,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11961128/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143763456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}