Predictors of type IIIa endoleak after endovascular aortic repair with anatomic fixation endografts.

OBJECTIVE: Concern regarding the use of anatomic fixation endografts was raised, as previous data suggested increased risk of late device uncoupling and type IIIa endoleak (EL) in this setting. Some risk factors have been identified as predictors of graft failure. We aim to determine if increase in aortic tortuosity index (TI) over the time is associated with an increased risk of type IIIa EL. METHODS: We conducted a single-center retrospective cohort study of patients treated with endovascular repair of infrarenal abdominal aortic aneurysms with the Endologix platform. Patients with at least two postoperative computed tomography (CT) scans were included in the analysis. Aortic TI was determined in the first and last available CT scan to determine any change. Multivariate analysis was performed to detect risk predictors of type IIIa EL occurrence. RESULTS: A total of 173 patients were included in the analysis. Twenty-one patients (12.1%) presented with type IIIa EL. Cumulative freedom from type IIIa EL determined by Kaplan-Meier method was 99.4%, 92.5%, 86.1%, and 83.3% at 1, 3, 5, and 8 years, respectively. Time-dependent optimal cutoff values of 0.03 for aortic TI increase and 15 mm for decrease in modules overlapping over time were obtained with the Contal and O'Quigley method to predict type IIIa EL. After dichotomizing data around these critical values, a Cox proportional hazards model was obtained to predict type IIIa EL occurrence. Maximum preoperative abdominal aortic aneurysm diameter (odds ratio [OR], 1.09), smoking (OR, 26.67), initial device components overlap (DCO) (OR, 0.91), aortic TI increase >0.03 (OR, 4.56), and decrease in DCO >15 mm (OR, 6.13) were associated with type IIIa EL occurrence. CONCLUSIONS: Aortic TI increase, DCO decrease, maximum preoperative aortic diameter, tobacco use, and initial DCO were predictive of type IIIa EL occurrence. Close follow-up with CT scan with aortic TI and device components overlap measure is warranted in these patients, and prompt repair seems justified when any of these risk factors is present.

Anticoagulación oral en reintervenciones endovasculares de la aorta / Oral Anticoagulation in Endovascular Aortic Reinterventions

RESUMEN Introducción: La endofuga es la principal causa de reintervención después del tratamiento endovascular de aorta. Algunos pacientes necesitan anticoagulación oral prolongada, lo cual puede aumentar la incidencia de endofugas posoperatorias. Objetivos: Nuestro objetivo es determinar si la anticoagulación oral posoperatoria tiene impacto en la incidencia de endofugas. Material y métodos: Este análisis retrospectivo incluyó todos los pacientes con aneurisma de aorta abdominal tratados por vía endovascular entre 2009 y 2014 en nuestro centro. Se determinaron dos grupos de pacientes de acuerdo con la necesidad de anticoagulación oral y se comparó entre ambos grupos la mortalidad relacionada con la aorta; la supervivencia libre de reintervenciones, de cualquier endofuga y de endofugas no tipo II; supervivencia libre de un punto final compuesto por mortalidad relacionada con la aorta, reintervenciones y endofugas, y la reducción del diámetro del saco aneurismático. Resultados: De 341 pacientes tratados, 33 (9,67%) estaban anticoagulados. No hubo diferencias entre ambos grupos en términos de mortalidad relacionada con la aorta (2,59% vs. 3,03%, p = ns), supervivencia libre de reintervenciones (84,04% vs. 86,2%; p = ns), supervivencia libre de cualquier endofuga (82% vs. 89%; p = 0,81) o supervivencia libre de endofugas no tipo II (88% vs. 88%; p = 0,52). Al analizar la supervivencia libre del punto final compuesto tampoco se encontraron diferencias significativas (80% vs. 85%; p = ns). La reducción promedio del diámetro del saco aneurismático fue de 5,19 mm y 3,51 mm (p = 0,2). Conclusiones: No se registró diferencia en ninguno de los resultados analizados. La anticoagulación oral posoperatoria no tuvo impacto en los resultados del tratamiento endovascular de aorta.

ABSTRACT Introduction: Endoleak is the main cause for reintervention after endovascular aortic repair. Some patientis need prolonged oral anticoagulation, which may increase the incidence of postoperative endoleaks. Objectives: Our objective was to determine whether postoperative oral anticoagulation has an impact on the incidence of endoleaks. Methods: This retrospective analysis included all patientis with endovascular treatment of abdominal aortic aneurysm at our center between 2009 and 2014. Two groups of patientis were determined according to the need for oral anticoagulation. Aortic-related mortality, survival free from reinterventions, any endoleak and non-type II endoleaks, survival free of the composite endpoint of mortality associated with the aorta, reinterventions and endoleaks, and reduction of aneurysmal sac diameter was compared between both groups.Resultis: Among 341 treated patientis, 33 (9.67%) were anticoagulated. There were no differences between the two groups in terms of aorta-related mortality (2.59% vs. 3.03%, p=ns), reintervention-free survival (84.04% vs. 86.2%; p=ns), any endoleak- free survival (82% vs. 89%, p=0.81) or non-type II endoleak-free survival (88% vs. 88%, p=0.52). Similarly, no significant differences were found when analyzing the composite endpoint-free survival (80% vs. 85%, p=ns). The average reduction of aneurysmal sac diameter was 5.19 mm and 3.51 mm (p=0.2). Conclusions: No difference was registered in any of the resultis analyzed. Postoperative oral anticoagulation had no impact on the resultis of endovascular aortic treatment.

[Small bowel intussusception and Vanek's tumor in an elderly woman]. / Intususcepción intestinal por pólipo fibroide inflamatorio en una anciana.

Inflammatory fibroid polyps are non-frequent benign lesions, described by Vanek in 1949, originated in the sub mucosa of the gastrointestinal tract. They have an uncertain origin and they are formed of fibroblastic and mesenchymal proliferations with an important eosinophilic proportion. Depending on where are they localized, could present different type of symptoms. The inflammatory fibroid polyps are one of the rare benign conditions causing intestinal intussusception in adults. We present the case of a 82 years old woman, who presented an intestinal intussusception due to an inflammatory fibroid polyp localized in the small bowel.

Intususcepción intestinal por pólipo fibroide inflamatorio en una anciana / Small bowel intussusception and Vaneks tumor in an elderly woman

El pólipo fibroide inflamatorio es un tumor benigno poco frecuente del tubo digestivo, descripto por Vanek en 1949. Son lesiones de etiología desconocida, originadas en la submucosa. Están formadas por células mononucleares y mesenquimatosas con citoplasma fusocelular, con una importante proporción de eosinófilos. Sus síntomas son variables, dependiendo de su localización, y son una r ara causa de intususcepción intestinal en adultos. Presentamos el caso de una mujer de 82 años, que sufrió una rara intususcepción de intestino delgado, originada en un pólipo fibroide inflamatorio.(AU)

Inflammatory fibroid polyps are non-frequent benign lesions, described by Vanek in 1949, originated in the sub mucosa of the gastrointestinal tract. They have an uncertain origin and they are formed of fibroblastic and mesenchymal proliferations with an important eosinophilic proportion. Depending on where are they localized, could present different type of symptoms. The inflammatory fibroid polyps are one of the rare benign conditions causing intestinal intussusception in adults.We present the case of a 82 years old woman, who presented an intestinal intussusception due to an inflammatory fibroid polyp localized in the small bowel.(AU)

Intususcepción intestinal por pólipo fibroide inflamatorio en una anciana / Small bowel intussusception and Vanek's tumor in an elderly woman

El pólipo fibroide inflamatorio es un tumor benigno poco frecuente del tubo digestivo, descripto por Vanek en 1949. Son lesiones de etiología desconocida, originadas en la submucosa. Están formadas por células mononucleares y mesenquimatosas con citoplasma fusocelular, con una importante proporción de eosinófilos. Sus síntomas son variables, dependiendo de su localización, y son una r ara causa de intususcepción intestinal en adultos. Presentamos el caso de una mujer de 82 años, que sufrió una rara intususcepción de intestino delgado, originada en un pólipo fibroide inflamatorio.

Inflammatory fibroid polyps are non-frequent benign lesions, described by Vanek in 1949, originated in the sub mucosa of the gastrointestinal tract. They have an uncertain origin and they are formed of fibroblastic and mesenchymal proliferations with an important eosinophilic proportion. Depending on where are they localized, could present different type of symptoms. The inflammatory fibroid polyps are one of the rare benign conditions causing intestinal intussusception in adults.We present the case of a 82 years old woman, who presented an intestinal intussusception due to an inflammatory fibroid polyp localized in the small bowel.

Intususcepción intestinal por pólipo fibroide inflamatorio en una anciana. / [Small bowel intussusception and Vaneks tumor in an elderly woman].

Inflammatory fibroid polyps are non-frequent benign lesions, described by Vanek in 1949, originated in the sub mucosa of the gastrointestinal tract. They have an uncertain origin and they are formed of fibroblastic and mesenchymal proliferations with an important eosinophilic proportion. Depending on where are they localized, could present different type of symptoms. The inflammatory fibroid polyps are one of the rare benign conditions causing intestinal intussusception in adults. We present the case of a 82 years old woman, who presented an intestinal intussusception due to an inflammatory fibroid polyp localized in the small bowel.