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1.
Ann Vasc Surg ; 102: 1-8, 2024 May.
Article in English | MEDLINE | ID: mdl-38307228

ABSTRACT

BACKGROUND: Spontaneous isolated celiac artery dissection (SICAD) is uncommon, with very few series reported in the literature. The present study aims to describe the clinical characteristics and treatment outcomes of patients with SICAD treated at a single Chilean institution over 20 years. METHODS: A retrospective review of all patients from a single academic hospital with SICAD diagnosed between January 2003 and March 2023 was performed. Conservative treatment included antiplatelets, anticoagulation, or both. The normal size of a celiac artery in our population was 7.9 ± 0.79 mm in females and 8.3 ± 1.08 mm in males. We defined a celiac artery with a diameter equal to or more than 12.5 mm as an aneurysmal celiac artery. RESULTS: The cohort included 27 patients; 77.8% (n = 21) were males. The median age was 51.0 years (range: 38-84 years). Fourteen (51.8%) patients presented with aneurysmal dilatation. Fourteen (51.8%) patients were treated with antiplatelets, 6 (22.2%) patients with anticoagulation, and 7 (25.9%) with anticoagulation and antiplatelets. One patient was treated with endovascular therapy due to a pseudoaneurysm of the celiac artery detected 10 days after conservative treatment with antiplatelets. The median length of hospital stay was 5 days (range: 2-14 days). Complete remodeling was seen in 6 (22.2%) patients, partial remodeling in 10 (37.0%) patients, and no change was seen in 8 (26.9%) patients. Three (11.5%) patients were lost to follow-up. There were no significant differences between treatments and remodeling outcomes (P = 0.729). The median celiac artery diameter of patients with aneurysmal dilatation was 13.5 mm (range: 12.5-20.5 mm). Systemic arterial hypertension was found more commonly in patients who presented with aneurysmal dilatation than in patients without (87.5% vs. 12.5%, respectively, P = 0.016). Mean follow-up was 41.5 months and median follow-up was 16 months (range: 6-204 months). CONCLUSIONS: Most patients with SICAD can be treated conservatively with excellent outcomes. Hypertension was more commonly found in patients with SICAD and aneurysmal dilatation.


Subject(s)
Aortic Dissection , Endovascular Procedures , Hypertension , Male , Female , Humans , Middle Aged , Celiac Artery/diagnostic imaging , Treatment Outcome , Endovascular Procedures/adverse effects , Aortic Dissection/diagnostic imaging , Aortic Dissection/therapy , Anticoagulants/therapeutic use , Retrospective Studies
2.
Ann Vasc Surg ; 99: 193-200, 2024 Feb.
Article in English | MEDLINE | ID: mdl-37805170

ABSTRACT

BACKGROUND: Infective native aortic aneurysms (INAAs), formerly called mycotic aneurysms, remain an uncommon disease with significant heterogeneity among cases; hence, there is lack of solid evidence to opt for the best treatment strategy. The present study aims to describe a 20-year experience at a single institution treating this uncommon condition. METHODS: Retrospective study of all patients treated for INAA at a single academic hospital in Santiago, Chile, between 2002 and 2022. Clinical characteristics are described, as well as operative outcomes per type of treatment. Nonparametric Mann-Whitney U-test or Kruskal-Wallis tests were performed when appropriate, and results were reported as median and ranges. Survival at given timeframes was determined by a Kaplan-Meier curve, with analysis performed through a Cox regression model. RESULTS: During the study period, 1,798 patients underwent aortic procedures at our center, of which 35 (1.9%) were treated for INAA. Of them, 25 (71.4%) were male. One patient had 2 INAAs. Median age was 69.5 years (range: 34-89 years). Of the 36 INAAs, the most frequent location was the abdominal and thoracic aorta in 20 (55.5%) and 11 (30.5%) cases, respectively, followed by the iliac arteries in 4 (11.1%) cases. One (2.7%) patient presented a thoracoabdominal INAA. Overall, endovascular treatment associated with long-term antibiotics was used in 20 (57.1%) patients: 4 of them underwent hybrid treatment. Fifteen (42.8%) patients underwent direct aortic debridement followed by in situ or extra anatomic revascularization. There was a significant difference in age between both treatment strategies (a median of 76.5 years for endovascular versus a median of 57 years for open, P = 0.011). The median hospital stay was 15 days (range: 2-70 days). The early complications rate (<30 postoperative days) was 20% (n = 7). Early mortality rate (inhospital or before postoperative 30 days) was 14.2% (n = 5). Median follow-up was 33 months (range: 6-216 months). The overall survival rates at 1, 3, and 5 years were 69.9% (standard error [SE] 8.0), 61.7% (SE 9.8), and 50.9% (SE 11.8), respectively. Five-year survival rate of patients undergoing endovascular treatment compared with open approach was 45.9% (SE 15.1) versus 80.0% (SE 17.8), respectively (P = 0.431). There were no significant differences in survival between open and endovascular treatment, hazard ratio 3.58 (confidence interval 95%: 0.185-1.968, SE ± 0.45 P = 0.454). CONCLUSIONS: Patients treated by endovascular approach were older than patients treated by open approach. Even though, the open group had a higher 5-year survival rate than the endovascular group, not statically significance differences were found between treatments.


Subject(s)
Aneurysm, Infected , Aortic Aneurysm, Abdominal , Aortic Aneurysm, Thoracic , Blood Vessel Prosthesis Implantation , Endovascular Procedures , Humans , Male , Aged , Female , Aneurysm, Infected/diagnostic imaging , Aneurysm, Infected/surgery , Chile , Retrospective Studies , Treatment Outcome , Blood Vessel Prosthesis Implantation/adverse effects , Endovascular Procedures/adverse effects , Postoperative Complications/etiology , Aortic Aneurysm, Abdominal/diagnostic imaging , Aortic Aneurysm, Abdominal/surgery , Aortic Aneurysm, Abdominal/etiology , Aortic Aneurysm, Thoracic/diagnostic imaging , Aortic Aneurysm, Thoracic/surgery , Aortic Aneurysm, Thoracic/etiology , Risk Factors
3.
J Vasc Surg Cases Innov Tech ; 9(3): 101290, 2023 Sep.
Article in English | MEDLINE | ID: mdl-37662570

ABSTRACT

We report the case of a 60-year-old woman who sought medical attention for left cervical and supraclavicular pain and swelling. Previous computed tomography, intravascular ultrasound, and venography studies were reviewed, confirming extrinsic compression of the left innominate vein by the left common carotid artery against the left clavicle head. Stenting of the lesion was performed, with good mid-term symptom relief and patency. It is, to the best of our knowledge, the first case study in the literature to report endovascular treatment of this syndrome.

4.
J Vasc Bras ; 21: e20190160, 2022.
Article in English | MEDLINE | ID: mdl-35677746

ABSTRACT

Endovascular embolization of arteries feeding pulmonary sequestrations is a growing therapeutic option. A 51-year-old woman with chest pain and hemoptysis was admitted. During hospitalization she presented 150 mL hemoptysis, hypotension, and hematocrit fell to 23.3%. Contrast-enhanced computed tomography confirmed a pulmonary sequestration irrigated by an aneurysmal artery from the abdominal aorta. The patient underwent endovascular coil embolization of the artery feeding the aneurysm and an Amplatzer device was deployed in the proximal third of the sequestration artery. Subsequent contrast-enhanced computed tomography confirmed complete thrombosis of the aberrant artery feeding the aneurysm and absence of irrigation of the pulmonary sequestration. At 56 months follow-up the patient remains asymptomatic, tomography showed involution of the sequestration and complete thrombosis of the aberrant artery. The challenges presented by the different treatment alternatives are discussed.


A embolização endovascular das artérias que alimentam os sequestros pulmonares é uma opção terapêutica em crescimento. Uma mulher de 51 anos com dor torácica e hemoptise foi internada. Durante a internação, ela apresentou hemoptise de 150 mL, hipotensão e queda do hematócrito para 23,3%. A tomografia computadorizada com contraste confirmou um sequestro pulmonar irrigado por uma artéria aneurismática originária da aorta abdominal. A paciente foi submetida a embolização endovascular da artéria que alimentava o aneurisma com uso de coils e dispositivo Amplatzer no terço proximal da artéria sequestrante. A tomografia subsequente confirmou a trombose completa da artéria aberrante que alimentava o aneurisma e a ausência de irrigação dentro do sequestro pulmonar. No seguimento de 56 meses, a paciente permanecia assintomática, e a tomografia mostrou involução do sequestro e trombose completa da artéria aberrante. Os desafios apresentados pelas diferentes alternativas de tratamento são discutidos neste artigo.

5.
Rev. med. Chile ; 150(6): 788-801, jun. 2022. tab
Article in Spanish | LILACS | ID: biblio-1424138

ABSTRACT

Ruptured abdominal aortic aneurysm (RAAA) is an arterial emergency with an overall mortality of 80%-90% secondary to massive hemorrhage. If a patient with RAAA presents in a primary hospital without resolution capacity, survival will depend on early transfer to a center with adequately trained specialists. This article reviews the evidence supporting the centralization of AAAR treatment in qualified centers, specifying the criteria used for the selection of referral centers and the role of a coordinating unit. Our current referral system, which is based primarily on costs, is also described. Patients with AAAR who consult in non-resolving centers should be rapidly transferred to a qualified referral center, following a transfer protocol, and guided by a coordinating unit acting according to technical and established criteria based on results, quality, and costs. Qualified referral centers should have an accredited vascular surgeon and a high institutional aortic surgery volume, adequate infrastructure, endovascular resolution capacity, support services (intensive care, hemodialysis, etc.) and specialized personnel permanently available.


Subject(s)
Humans , Aortic Rupture/surgery , Aortic Aneurysm, Abdominal/surgery , Endovascular Procedures/methods , Retrospective Studies , Risk Factors , Treatment Outcome , Hospital Mortality , Hospitals
6.
Vasc Endovascular Surg ; : 15385744221098812, 2022 May 04.
Article in English | MEDLINE | ID: mdl-35506432

ABSTRACT

BACKGROUND: Innominate artery embolism may result in upper extremity ischemia or stroke. A free-floating thrombus originating from the IA is an unusual and dangerous disorder with embolic potential. Only isolated cases have been described showing different treatment modalities. PURPOSE: To present 3 cases of free-floating thrombus in the IA treated at our institution with 3 different approaches. CASES: The first case is a patient with a free-floating thrombus in the IA treated with cervical debranching and ligation of the proximal right carotid artery; another case of a patient treated with a hybrid approach with deployment of an iliac limb in the IA plus right carotid to subclavian bypass; and a third case of a patient operated by open arch thrombectomy. CONCLUSIONS: Free-floating thrombus in the IA is a threatening condition feasible to be managed through different customized surgical approaches in specialized centers.

7.
Vasc Endovascular Surg ; 56(6): 622-627, 2022 Aug.
Article in English | MEDLINE | ID: mdl-35491900

ABSTRACT

Purpose: The objective of this study is to report a case of a 65-year-old woman who presented with pallor and pain of her left arm secondary to a true arterial brachial aneurysm, which was successfully treated with saphenous vein bypass and embolization of the aneurysm sac. A review of the literature is also presented. Case report: A 65-year-old woman presented with an acute onset of pallor and pain of her left forearm, and hand. On physical examination, there was a pulsatile mass at the forearm. A doppler ultrasound showed a fusiform aneurysmal dilatation of the brachial artery of 23 mm of diameter. A dynamic contrast-enhanced MRI angiogram confirmed a fusiform dilation of the distal brachial artery. The patient was scheduled for open repair. A fusiform 20 x 60 mm aneurysm of the distal brachial artery extending to the cubital fossa was found and a brachial artery to radial and ulnar arteries bypass with interposed reverse right saphenous vein was created. Embolization of the aneurysm sac was performed using Gelita-spon ® (Gelita Medical, Eberbach, Germany). A final angiogram showed an adequate perfusion through the bypass to the hand, and no contrast in the aneurysmal sac. Postoperative course was uneventful with discharge on the fourth postoperative day. Conclusion: Revascularization with autologous saphenous vein graft and exclusion of the aneurysm with local embolization is a good treatment alternative in a patient with symptomatic brachial aneurysm with distal embolization.


Subject(s)
Aneurysm , Brachial Artery , Aged , Aneurysm/diagnostic imaging , Aneurysm/surgery , Brachial Artery/diagnostic imaging , Brachial Artery/surgery , Female , Humans , Pain , Pallor/complications , Saphenous Vein/diagnostic imaging , Saphenous Vein/transplantation , Treatment Outcome
8.
Rev Med Chil ; 150(6): 788-801, 2022 Jun.
Article in Spanish | MEDLINE | ID: mdl-37906914

ABSTRACT

Ruptured abdominal aortic aneurysm (RAAA) is an arterial emergency with an overall mortality of 80%-90% secondary to massive hemorrhage. If a patient with RAAA presents in a primary hospital without resolution capacity, survival will depend on early transfer to a center with adequately trained specialists. This article reviews the evidence supporting the centralization of AAAR treatment in qualified centers, specifying the criteria used for the selection of referral centers and the role of a coordinating unit. Our current referral system, which is based primarily on costs, is also described. Patients with AAAR who consult in non-resolving centers should be rapidly transferred to a qualified referral center, following a transfer protocol, and guided by a coordinating unit acting according to technical and established criteria based on results, quality, and costs. Qualified referral centers should have an accredited vascular surgeon and a high institutional aortic surgery volume, adequate infrastructure, endovascular resolution capacity, support services (intensive care, hemodialysis, etc.) and specialized personnel permanently available.


Subject(s)
Aortic Aneurysm, Abdominal , Aortic Rupture , Endovascular Procedures , Humans , Aortic Rupture/surgery , Hospitals , Hospital Mortality , Aortic Aneurysm, Abdominal/surgery , Treatment Outcome , Endovascular Procedures/methods , Retrospective Studies , Risk Factors
9.
J. vasc. bras ; 21: e20190160, 2022. graf
Article in English | LILACS | ID: biblio-1375806

ABSTRACT

Abstract Endovascular embolization of arteries feeding pulmonary sequestrations is a growing therapeutic option. A 51-year-old woman with chest pain and hemoptysis was admitted. During hospitalization she presented 150 mL hemoptysis, hypotension, and hematocrit fell to 23.3%. Contrast-enhanced computed tomography confirmed a pulmonary sequestration irrigated by an aneurysmal artery from the abdominal aorta. The patient underwent endovascular coil embolization of the artery feeding the aneurysm and an Amplatzer device was deployed in the proximal third of the sequestration artery. Subsequent contrast-enhanced computed tomography confirmed complete thrombosis of the aberrant artery feeding the aneurysm and absence of irrigation of the pulmonary sequestration. At 56 months follow-up the patient remains asymptomatic, tomography showed involution of the sequestration and complete thrombosis of the aberrant artery. The challenges presented by the different treatment alternatives are discussed.


Resumo A embolização endovascular das artérias que alimentam os sequestros pulmonares é uma opção terapêutica em crescimento. Uma mulher de 51 anos com dor torácica e hemoptise foi internada. Durante a internação, ela apresentou hemoptise de 150 mL, hipotensão e queda do hematócrito para 23,3%. A tomografia computadorizada com contraste confirmou um sequestro pulmonar irrigado por uma artéria aneurismática originária da aorta abdominal. A paciente foi submetida a embolização endovascular da artéria que alimentava o aneurisma com uso de coils e dispositivo Amplatzer no terço proximal da artéria sequestrante. A tomografia subsequente confirmou a trombose completa da artéria aberrante que alimentava o aneurisma e a ausência de irrigação dentro do sequestro pulmonar. No seguimento de 56 meses, a paciente permanecia assintomática, e a tomografia mostrou involução do sequestro e trombose completa da artéria aberrante. Os desafios apresentados pelas diferentes alternativas de tratamento são discutidos neste artigo.


Subject(s)
Humans , Female , Middle Aged , Aortic Aneurysm, Abdominal/therapy , Embolization, Therapeutic , Endovascular Procedures , Aorta, Abdominal , Tomography, X-Ray Computed , Bronchopulmonary Sequestration/diagnosis
10.
Rev Med Chil ; 149(1): 132-136, 2021 Jan.
Article in Spanish | MEDLINE | ID: mdl-34106145

ABSTRACT

Primary aortoenteric fistula is the spontaneous communication between the lumen of the aorta and a portion of the digestive tract. The most common cause is the erosion of an abdominal aortic aneurysm into the 3rd or 4th portion of the duodenum. It manifests clinically as gastrointestinal bleeding, with or without abdominal pain and a pulsatile abdominal mass on physical exam. Gastrointestinal bleeding is initially recurrent and self-limiting and progresses to fatal exsanguinating hemorrhage. Endoscopic examination diagnoses only 25% of aortoenteric fistulas because these are usually located in the distal duodenum. Contrast computed tomography of the abdomen and pelvis is diagnostic in only 60% of cases. We report three cases with this condition. A 67-year-old male presenting with an upper gastrointestinal bleeding. He was operated and a communication between an aortic aneurysm and the duodenum was found and surgically repaired. The patient is well. A 67-year-old male with an abdominal aortic aneurysm presenting with abdominal pain. He was operated and anticoagulated. In the postoperative period he had a massive gastrointestinal bleeding and a new CAT scan revealed an aorto enteric fistula that was surgically repaired. The patient is well. An 82-year-old male with an abdominal aortic aneurysm presenting with hematochezia. A CAT scan revealed a communication between the aneurysm and the third portion of the duodenum, that was surgically repaired. The patient died in the eighth postoperative day.


Subject(s)
Aortic Aneurysm, Abdominal , Aortic Diseases , Aortic Rupture , Duodenal Diseases , Intestinal Fistula , Vascular Fistula , Aorta, Abdominal , Aortic Aneurysm, Abdominal/complications , Aortic Aneurysm, Abdominal/diagnostic imaging , Aortic Aneurysm, Abdominal/surgery , Duodenal Diseases/complications , Duodenal Diseases/diagnostic imaging , Duodenal Diseases/surgery , Duodenum , Gastrointestinal Hemorrhage/etiology , Humans , Intestinal Fistula/complications , Intestinal Fistula/diagnostic imaging , Male , Vascular Fistula/complications , Vascular Fistula/diagnostic imaging , Vascular Fistula/surgery
11.
Rev. méd. Chile ; 149(1)ene. 2021.
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1389347

ABSTRACT

Primary aortoenteric fistula is the spontaneous communication between the lumen of the aorta and a portion of the digestive tract. The most common cause is the erosion of an abdominal aortic aneurysm into the 3rd or 4th portion of the duodenum. It manifests clinically as gastrointestinal bleeding, with or without abdominal pain and a pulsatile abdominal mass on physical exam. Gastrointestinal bleeding is initially recurrent and self-limiting and progresses to fatal exsanguinating hemorrhage. Endoscopic examination diagnoses only 25% of aortoenteric fistulas because these are usually located in the distal duodenum. Contrast computed tomography of the abdomen and pelvis is diagnostic in only 60% of cases. We report three cases with this condition. A 67-year-old male presenting with an upper gastrointestinal bleeding. He was operated and a communication between an aortic aneurysm and the duodenum was found and surgically repaired. The patient is well. A 67-year-old male with an abdominal aortic aneurysm presenting with abdominal pain. He was operated and anticoagulated. In the postoperative period he had a massive gastrointestinal bleeding and a new CAT scan revealed an aorto enteric fistula that was surgically repaired. The patient is well. An 82-year-old male with an abdominal aortic aneurysm presenting with hematochezia. A CAT scan revealed a communication between the aneurysm and the third portion of the duodenum, that was surgically repaired. The patient died in the eighth postoperative day.

13.
Rev. méd. Chile ; 148(12)dic. 2020.
Article in Spanish | LILACS | ID: biblio-1389271

ABSTRACT

Background: Chronic limb ischemia can lead to high rates of limb loss and mortality. Open surgery is the gold standard for treatment of distal disease. Endovascular surgery should have less complications with similar outcomes. Aim: To report a cohort of patients with distal arterial disease treated with endovascular surgery at our institution. Material and Methods: Review of angioplasty records of patients undergoing distal lower extremity endovascular procedures between 2016 and 2019. Demographics, comorbidities, form of presentation, type of intervention, perioperative complications, and length of stay were analyzed. The primary outcomes were wound healing, reinterventions and freedom from major amputation. Secondary outcomes were overall survival and amputation-free survival. Results: Forty-eight limbs of 41 patients with a mean age 75 years (78% males) were treated. Ninety-three percent had hypertension, 88% diabetes, 30% chronic kidney disease. 73% presented with major wounds. Plain balloon and drug coated balloon angioplasties were carried out in 65 and 31% of procedures respectively, with no difference in results. In 46% of the cases, only chronic total occlusions were treated. Wound healing was achieved in 85% of procedures and 90% of patients were free from amputation at one year of follow up. Complications were observed in 18% of procedures, perioperative mortality was 2% and one-year survival was 76%. Conclusions: Endovascular therapy achieves high rates of wound healing and freedom from amputation with low perioperative mortality and moderate complication rates.


Subject(s)
Aged , Female , Humans , Male , Peripheral Arterial Disease , Endovascular Procedures , Retrospective Studies , Risk Factors , Treatment Outcome , Critical Illness , Limb Salvage , Peripheral Arterial Disease/surgery , Endovascular Procedures/adverse effects , Ischemia/surgery , Amputation, Surgical
15.
Vasc Endovascular Surg ; 54(7): 638-642, 2020 Oct.
Article in English | MEDLINE | ID: mdl-32662320

ABSTRACT

Aortocaval fistula is uncommon and often associated with a ruptured iliac or abdominal aortic aneurysm. It has a high mortality secondary to the aneurysmal rupture but also to a high output heart failure. Open surgery has been the standard; however, endovascular management has emerged with lower mortality. We present a patient with a ruptured iliac aneurysm and an inferior vena cava fistula successfully treated with an endograft with embolization of the right hypogastric artery. The patient arrested on induction and was resuscitated with aortic balloon inflation. Endovascular therapy can be safely used in the management of iliac/aortocaval fistula.


Subject(s)
Aneurysm, Ruptured/surgery , Aorta , Arteriovenous Fistula/therapy , Blood Vessel Prosthesis Implantation , Embolization, Therapeutic , Endovascular Procedures , Iliac Aneurysm/surgery , Vena Cava, Inferior , Aged, 80 and over , Aneurysm, Ruptured/complications , Aneurysm, Ruptured/diagnostic imaging , Aorta/diagnostic imaging , Arteriovenous Fistula/diagnostic imaging , Arteriovenous Fistula/etiology , Humans , Iliac Aneurysm/complications , Iliac Aneurysm/diagnostic imaging , Male , Treatment Outcome , Vena Cava, Inferior/diagnostic imaging
16.
Rev Med Chil ; 148(12): 1734-1741, 2020 Dec.
Article in Spanish | MEDLINE | ID: mdl-33844738

ABSTRACT

BACKGROUND: Chronic limb ischemia can lead to high rates of limb loss and mortality. Open surgery is the gold standard for treatment of distal disease. Endovascular surgery should have less complications with similar outcomes. AIM: To report a cohort of patients with distal arterial disease treated with endovascular surgery at our institution. MATERIAL AND METHODS: Review of angioplasty records of patients undergoing distal lower extremity endovascular procedures between 2016 and 2019. Demographics, comorbidities, form of presentation, type of intervention, perioperative complications, and length of stay were analyzed. The primary outcomes were wound healing, reinterventions and freedom from major amputation. Secondary outcomes were overall survival and amputation-free survival. RESULTS: Forty-eight limbs of 41 patients with a mean age 75 years (78% males) were treated. Ninety-three percent had hypertension, 88% diabetes, 30% chronic kidney disease. 73% presented with major wounds. Plain balloon and drug coated balloon angioplasties were carried out in 65 and 31% of procedures respectively, with no difference in results. In 46% of the cases, only chronic total occlusions were treated. Wound healing was achieved in 85% of procedures and 90% of patients were free from amputation at one year of follow up. Complications were observed in 18% of procedures, perioperative mortality was 2% and one-year survival was 76%. CONCLUSIONS: Endovascular therapy achieves high rates of wound healing and freedom from amputation with low perioperative mortality and moderate complication rates.


Subject(s)
Endovascular Procedures , Peripheral Arterial Disease , Aged , Amputation, Surgical , Critical Illness , Endovascular Procedures/adverse effects , Female , Humans , Ischemia/surgery , Limb Salvage , Male , Peripheral Arterial Disease/surgery , Retrospective Studies , Risk Factors , Treatment Outcome
17.
Ann Vasc Surg ; 67: 67-70, 2020 Aug.
Article in English | MEDLINE | ID: mdl-31678545

ABSTRACT

BACKGROUND: The prevalence of a bovine aortic arch configuration is higher in patients treated for thoracic aortic aneurysms and type B dissection; its prevalence in aortic isthmic trauma has not been described. METHODS: A case control study was performed comparing consecutive patients treated at our institution for acute isthmic aortic transection after blunt trauma between 2002 and 2019 and a control group of consecutive sex-matched individuals undergoing imaging for nonaortic disease. Imaging and clinical findings were reviewed. Subjects were divided into bovine and nonbovine groups and prevalence was compared. The length of the aortic segment between the left subclavian artery (LSA) and the next proximal great vessel was measured in the control population and a comparison was performed between bovine and nonbovine aortic arch subjects. RESULTS: Thirty-three consecutive (30 male) patients were reviewed, 66 individuals (60 male) were included in the control group. A higher incidence of bovine arch in trauma patients was found: 57.6% vs. 34.8% (P = 0.007). The median (range, mm) and mean (SD) distance between the bovine trunk and the LSA were 13 mm (2-27) and 12.4 mm (5.9), respectively, compared with 5 mm (1-27) and 7.8 mm (6.1) between the left common carotid and LSA in nonbovine aortic arches (P < 0.005). CONCLUSION: A higher incidence of bovine arch in patients reaching out for surgical treatment for traumatic isthmic aortic transection was found in our population. Clinical interpretation of this finding can lead to several alternatives. Confirmation with larger series and data on prevalence of this anatomic variation in nonsurvivors is needed to provide a better understanding of this finding.


Subject(s)
Aorta, Thoracic/abnormalities , Vascular Malformations/epidemiology , Vascular Surgical Procedures , Vascular System Injuries/surgery , Wounds, Nonpenetrating/surgery , Adolescent , Adult , Aged , Anatomic Landmarks , Aorta, Thoracic/diagnostic imaging , Aortography , Case-Control Studies , Chile/epidemiology , Computed Tomography Angiography , Female , Humans , Incidence , Male , Middle Aged , Prevalence , Subclavian Artery/diagnostic imaging , Vascular Malformations/diagnostic imaging , Vascular System Injuries/diagnostic imaging , Vascular System Injuries/epidemiology , Wounds, Nonpenetrating/diagnostic imaging , Wounds, Nonpenetrating/epidemiology , Young Adult
19.
Ann Vasc Surg ; 64: 71-79.e1, 2020 Apr.
Article in English | MEDLINE | ID: mdl-31634593

ABSTRACT

BACKGROUND: Few series of ruptured abdominal aortic aneurysm (RAAA) from Latin America have been published. OBJECTIVES: To report the outcomes of RAAA treated with open surgical repair (OSR) in a University Hospital in Chile. Secondary objectives are the identification of prognostic factors and survival rates. METHODS: Retrospective review of consecutive RAAA patients treated with OSR between September 1979 and December 2017. Medical records, diagnostic images, and follow-up details were obtained. Statistical methods include multiple logistic regression analysis. RESULTS: One hundred and sixteen patients underwent OSR for RAAA. The average age was 72.3 years (54-95), 62.9% ≥ 70 years, and 81.9% male. Preoperative systolic pressure <90 mm Hg was present in 74 patients (63.8%), and 10 (8.6%) experienced cardiac arrest before surgery. Only 30.2% were known to have an AAA before rupture. The mean aortic diameter was 7.9 cm. Sixteen patients had juxtarenal aneurysms (13.8%). The rupture was intra or retroperitoneal in 111 cases (95.7%), there were 4 fistulas to neighboring veins and one into the duodenum. Reconstruction included tubular graft in 39.7% and bifurcated in 58.6%. The estimated mean blood loss was 3,456 ± 2,768 mL (median 3,000). Mean mechanical ventilation was 7.4 ± 12.0 days and hemodialysis requirement in 21.8%. Six patients died during surgery and other 24 during the first postoperative month or in hospital, for an overall mortality rate of 25.9%. Age ≥70 years (P < 0.01), blood pressure less than 90 mm Hg (P = 0.03) and dialysis (P < 0.01) were associated with higher 30-day mortality rates. The survival rate was 68.0, 65.3, 44.3, and 25.2% at 1, 2, 5, and 10 years, respectively. CONCLUSIONS: EVAR for RAAA is not affordable in every country. Outcomes of open RAAA repair at our institution are similar to results reported recently for OSR by the USA and European Medical centers.


Subject(s)
Aortic Aneurysm, Abdominal/surgery , Aortic Rupture/surgery , Vascular Surgical Procedures , Aged , Aged, 80 and over , Aortic Aneurysm, Abdominal/diagnostic imaging , Aortic Aneurysm, Abdominal/mortality , Aortic Rupture/diagnostic imaging , Aortic Rupture/mortality , Chile , Female , Hospitals, University , Humans , Male , Middle Aged , Postoperative Complications/mortality , Retrospective Studies , Risk Assessment , Risk Factors , Time Factors , Treatment Outcome , Vascular Surgical Procedures/adverse effects , Vascular Surgical Procedures/mortality
20.
Ann Vasc Surg ; 66: 28-34, 2020 Jul.
Article in English | MEDLINE | ID: mdl-31634598

ABSTRACT

BACKGROUND: The objective of the study is to report our experience with conventional surgery for juxtarenal abdominal aortic aneurysms (JRAs) by evaluating incidence of acute renal failure and perioperative mortality. Secondary objectives are to evaluate general morbidity and the need for permanent postoperative dialysis and to assess the influence on long-term survival of preoperative risk factors and deterioration of perioperative renal function. METHODS: A retrospective cohort study of 110 patients with JRA electively treated by open surgery between March 1992 and March 2018 was made. Data were obtained from clinical records, describing demographics, perioperative variables, and results. Acute kidney injury (AKI) was defined as 50% decrease in glomerular filtration rate or two-fold increase in serum creatinine. Multivariate analysis was performed by logistic regression to establish risk factors for renal failure. The influence of preoperative risk factors and deterioration of perioperative renal function on long-term survival was studied using Cox regression model. Descriptive and inferential statistics were used in the analysis. RESULTS: 110 consecutive patients were treated with an average age of 71 years, 82.7% male; 81% hypertensive and 41% active smokers. 46.3% had stage III or higher preoperative chronic kidney disease. Median diameter of the aneurysm was 5.7 cm. Interruption of bilateral renal flow was required in 73 patients (66.4%) and unilateral in 37 (33.6%). The average renal clamping time was 34.5 min. AKI occurred in 9 patients (8.2%). Two patients (1.8%) required postoperative dialysis, one of them permanent. Median hospital stay was 7 days. Thirty-three patients (30%) had at least one complication. Postoperative mortality was 2.7% (3 patients), two of them developed AKI. Multivariate analysis established a longer operative time and need for renal revascularization as independent risk factors for AKI. In the survival analysis, age, cerebrovascular disease, chronic obstructive pulmonary disease, and perioperative AKI were identified as risk factors for long-term mortality. CONCLUSIONS: JRA open surgical repair can be performed with low morbidity and mortality. Although transient acute renal dysfunction may be relatively frequent, the need for hemodialysis is low. Our study is a reference point to compare with endovascular repair.


Subject(s)
Acute Kidney Injury/etiology , Aortic Aneurysm, Abdominal/surgery , Blood Vessel Prosthesis Implantation/adverse effects , Renal Insufficiency/etiology , Acute Kidney Injury/diagnosis , Acute Kidney Injury/mortality , Acute Kidney Injury/therapy , Aged , Aged, 80 and over , Aortic Aneurysm, Abdominal/diagnostic imaging , Aortic Aneurysm, Abdominal/mortality , Blood Vessel Prosthesis Implantation/mortality , Female , Humans , Length of Stay , Male , Middle Aged , Renal Dialysis , Renal Insufficiency/diagnosis , Renal Insufficiency/mortality , Renal Insufficiency/therapy , Retrospective Studies , Risk Assessment , Risk Factors , Time Factors , Treatment Outcome
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