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      Uso de endoprótesis bifurcada ilíaca para revascularización hipogástrica durante tratamiento de aneurisma aorto-ilíaco Translated title: Bifurcated iliac endograft in a patient with aortic-iliac aneurysm

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          Abstract

          Una anatomía desfavorable es un obstáculo a vencer con el tratamiento endovascular del aneurisma aorto-ilíaco. La presencia de aneurisma ilíaco bilateral es frecuente y amenaza la adecuada fijación distal de una endoprótesis. Esta condición puede ser manejada: a) aumentando el diámetro del dispositivo a nivel ilíaco, con limitaciones en las medidas disponibles; b) embolización hipogástrica bilateral, aceptando una morbimortalidad mayor; c) combinando un abordaje quirúrgico retroperitoneal para revascularizar una arteria hipogástrica, aumentando el impacto del procedimiento; d) mediante revascularización retrógrada unilateral desde la arteria ilíaca externa ipsilateral con otra endoprótesis. Recientemente se ha descrito el uso de endoprótesis ramificadas, que requieren un despliegue complejo, pero permiten revascularizar una o ambas arterias hipogástricas en forma anterógrada y estable. Reportamos el caso de un paciente de sexo masculino y 57 años, de alto riesgo para cirugía convencional, portador de un aneurisma pequeño de aorta abdominal y aneurismas ilíaco común bilateral e hipogástrico izquierdo. Fue tratado mediante despliegue de una endoprótesis bifurcada ilíaca, revascularizando la arteria hipogástrica derecha y embolizando la izquierda aneurismática, asociado a implante de una endoprótesis aórtica convencional, también bifurcada. El paciente evoluciona sin complicaciones, con claudicación glútea izquierda leve en disminución y preservación de su función sexual. Una tomografía axial computada demuestra exclusión efectiva de sus aneurismas. Esta nueva técnica permite tratar de manera segura a pacientes portadores de aneurisma ilíaco bilateral en forma endo-vascular, manteniendo perfusión de la circulación pelviana y disminuyendo el impacto de un procedimiento convencional en pacientes de alto riesgo.

          Translated abstract

          A difficult anatomy is the major challenge to overcome with abdominal aortic aneurysm endografting. Bilateral iliac aneurysm preventing an appropriate distal landing zone for an endograft is a common condition and can be managed by: a) Increasing the diameter of the endograft, with limitations in available sizes; b) bilateral hypogastric embolization, accepting an increased morbidity; c) combining a surgical hypogastric revascularization by retroperitonel approach or d) retrograde revascularization from the ipsilateral external iliac artery using an endograft. Recently, branched endografts have been designed to revascularize the hypo gastric artery. Their deployment is complex but allows antegrade and stable fl ow. We report a 57 year-old male, at high risk for an open procedure, who presented with a small aortic aneurysm, bilateral iliac and left hypogastric aneurysms. A right bifurcated iliac endograft was deployed, associated with left hypogastric aneurysm embolization and aortic endografting. The patient recovered event free, patency of the endograft and absence of endoleak was demonstrated on a CT scan. He presented minor left buttock claudication, sexual function was preserved. This new technique allows safe endovascular treatment of patients with bilateral iliac aneurysm, allowing preservation of pelvic perfusion and avoiding the risk of an open procedure in a high risk patient.

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          Most cited references33

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          Decrease in total aneurysm-related deaths in the era of endovascular aneurysm repair.

          With the expansion of elective abdominal aortic aneurysm (AAA) repair after the introduction of endovascular aneurysm repair (EVAR), there is a concern that even with a lower operative mortality there could be an increasing number of aneurysm-related deaths. To evaluate this, we looked at national trends in AAA repair volume as well as mortality rates after intact and ruptured AAA repair encompassing the introduction of EVAR. Patients with intact or ruptured AAA undergoing open repair or EVAR and all those with a diagnosis of ruptured AAA were identified within the 1993 to 2005 Nationwide Inpatient Sample database using International Classification of Diseases, 9th Revision, diagnosis and procedure codes. The number of repairs, number of rupture diagnoses without repair, number of deaths, and associated mortality rates were measured for each year of the database. Outcomes (mean annual volumes) were compared from the pre-EVAR era (1993 to 1998) with the post-EVAR era (2001 to 2005). Since its introduction, EVAR increased steadily and accounted for 56% of repairs yet only 27% of the deaths for intact repairs in 2005. The mean annual number of intact repairs increased from 36,122 in the pre-EVAR era to 38,901 in the post-EVAR era, whereas the mean annual number of deaths related to intact AAA repair decreased from 1693 pre-EVAR to 1207 post-EVAR (P < .0001). Mortality for all intact AAA repair decreased from 4.0% to 3.1% (P < .0001) pre-EVAR and post-EVAR, but open repair mortality was unchanged (open repair, 4.7% to 4.5%, P = .31; EVAR, 1.3%). During the same time, the mean annual number of ruptured repairs decreased from 2804 to 1846, and deaths from ruptured AAA repairs decreased from 2804 to 1846 (P < .0001). Mortality for ruptured AAA repair decreased from 44.3% to 39.9% (P < .0001) pre-EVAR and post-EVAR (open repair, 44.3% to 39.9%, P < .001; EVAR, 32.4%). The overall mean annual number of ruptured AAA diagnoses (9979 to 7773, P < .0001) and overall mean annual deaths from a ruptured AAA decreased post-EVAR (5338 to 3901, P < .0001). Since the introduction of EVAR, the annual number of deaths from intact and ruptured AAA has significantly decreased. This coincided with an increase in intact AAA repair after the introduction of EVAR and a decrease in ruptured AAA diagnosis and repair volume.
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            Endovascular treatment of iliac aneurysm: Concurrent comparison of side branch endograft versus hypogastric exclusion.

            To analyze early and mid-term outcome of endovascular treatment in patients with iliac aneurysms, comparing the results of hypogastric revascularization by branch endografting with those of hypogastric occlusion. Consecutive patients with iliac aneurysms receiving side branch endograft (Group I) were compared with those receiving endograft with hypogastric exclusion (Group II) during the interval from January 2000 to May 2008. Procedural details and outcomes were prospectively collected and were analyzed at one year to avoid mismatch in follow-up length. A total of 74 patients (mean age, 75.8 years, 95% males) were treated: 32 in Group I and 42 in Group II. No differences in baseline risk factors and aneurysm diameter (40.2 +/- 7.9 mm in Group I vs. 38.4 +/- 10.8 in Group II) were found. Concurrent treatment of aortic aneurysm was performed in 25/32 (78%) of Group I and 36/42 (86%) of Group II. Fluoro time was 48 minutes (interquartile range [IQR] 31-57) in Group I vs. 31 minutes (IQR 23-38) in Group II (P = .04). The amount of contrast was similar in both Groups: 184 ml (IQR 155-210) in Group I vs. 183 ml (IQR 155-200) in Group II. No intestinal ischemia or deaths occurred. There were no significant differences in failures of hypogastric side branch deployment (2/32) compared with hypogastric coiling (3/42). Limb occlusions all occurring in the external iliac artery side were 2/32 in Group I vs. 3/42 in Group II. Reintervention rates were similar (5/32 vs. 4/42) at one year. Shrinkage of 5 mm or more was detected in 7/23 (30%) of Group I and in 13/37 (34%) of Group II. Iliac endoleak was present in eight patients (19%) in Group II and in one patient in Group I (4%) (P = .1). Similarly, buttock claudication or impotence were more frequent after hypogastric exclusion, recorded in eight patients in Group II and in one patient in Group I (P = .1). Endovascular treatment of iliac aneurysm with hypogastric revascularization through side branched endografts is feasible and safe in the mid-term. When compared with hypogastric embolization, this option leads to similar technical success and reintervention rates. Endoleak and buttock claudication occur frequently in patients with iliac aneurysm treated with hypogastric exclusion, while are uncommon in those with hypogastric revascularization. Side branch endografting for iliac aneurysm may be considered a primary choice in younger, active patients with suitable anatomy, but larger studies and longer postoperative observation periods are needed.
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              Unilateral and bilateral hypogastric artery interruption during aortoiliac aneurysm repair in 154 patients: a relatively innocuous procedure.

              Hypogastric artery (HA) occlusion during aortic aneurysm repair has been associated with considerable morbidity. We analyzed the consequences of interrupting one or both HAs in the standard surgical or endovascular treatment of aortoiliac aneurysms (AIAs).
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                Author and article information

                Journal
                rchcir
                Revista chilena de cirugía
                Rev Chil Cir
                Sociedad de Cirujanos de Chile (Santiago, , Chile )
                0718-4026
                June 2010
                : 62
                : 3
                : 279-284
                Affiliations
                [01] Santiago orgnamePontificia Universidad Católica de Chile orgdiv1Facultad de Medicina orgdiv2Departamento de Cirugía Vascular y Endovascular Chile rmertens@ 123456med.puc.cl
                Article
                S0718-40262010000300014 S0718-4026(10)06200300014
                10.4067/S0718-40262010000300014
                c4b83a4e-f8f9-4c36-9293-ca49a2c57e26

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 15 October 2009
                : 17 November 2009
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 20, Pages: 6
                Product

                SciELO Chile

                Categories
                CASOS CLÍNICOS

                endovascular,hypogastric artery,arteria hipogástrica,Aneurisma,Aneurism

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