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Research ArticleClinical Studies

Risk Factors of Endoleak Following Endovascular Repair of Abdominal Aortic Aneurysm. A Multicentric Retrospective Study

MAURO FREGO, FRANCO LUMACHI, GIORGIO BIANCHERA, FABIO PILON, MARCO SCARPA, CESARE RUFFOLO, LINO POLESE, IMERIO ANGRIMAN, LORENZO NORBERTO, DIEGO MIOTTO, RAFFAELLA MOTTA, ANTONIO ZANON and GIANFRANCO PICCHI
In Vivo November 2007, 21 (6) 1099-1102;
MAURO FREGO
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FRANCO LUMACHI
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  • For correspondence: flumachi@unipd.it
GIORGIO BIANCHERA
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FABIO PILON
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MARCO SCARPA
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CESARE RUFFOLO
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LINO POLESE
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IMERIO ANGRIMAN
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LORENZO NORBERTO
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DIEGO MIOTTO
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RAFFAELLA MOTTA
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ANTONIO ZANON
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GIANFRANCO PICCHI
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Abstract

Endoleak (EL) represents the most common complication following endovascular abdominal aortic aneurysm repair (EVAR). Unfortunately, the long-term results of EVAR and its durability have been questioned, and EL are variably associated with a risk of late failure. The aim of this retrospective study was to identify risk factors for this complication of aneurysm-endograft complex in patients who underwent EVAR. A group of 104 consecutive patients (99 men, 5 women; median age, 74 years; range, 50-89 years) were enrolled in the study. Both preoperative and follow-up imaging studies were obtained using helical computed tomography scanning at 1, 6, 12, 24, 36 months after EVAR and blindly reviewed by a surgeon and a radiologist. Twenty-seven (25.9%) patients developed EL during follow-up, of which 10 (37%) were primary (<30 days from EVAR), and 17 (63%) were secondary EL. Age and smoking did not affect the EL onset, while a body mass index >25 and a history or presence of arterial hypertension represented significant (p<0.05) risk factors. Moreover, both greatest diameter and maximum length of the aneurysm were significantly higher (p<0.01) in patients who developed EL. No relationship was found with the anatomical features of the aortic neck (i.e. length and diameter), and between the initial size of the aneurysm and the dimension at the time of EL. In conclusion, in our study, being overweight, arterial hypertension and the initial size of the aneurysm represent risk factors for EL development.

  • Aortic aneurysm
  • endovascular repair
  • endoleak
  • abdominal CT-scan

Footnotes

  • Received June 27, 2007.
  • Revision received September 13, 2007.
  • Accepted September 24, 2007.
  • Copyright © 2007 International Institute of Anticancer Research (Dr. John G. Delinassios), All rights reserved
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November-December 2007
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Risk Factors of Endoleak Following Endovascular Repair of Abdominal Aortic Aneurysm. A Multicentric Retrospective Study
MAURO FREGO, FRANCO LUMACHI, GIORGIO BIANCHERA, FABIO PILON, MARCO SCARPA, CESARE RUFFOLO, LINO POLESE, IMERIO ANGRIMAN, LORENZO NORBERTO, DIEGO MIOTTO, RAFFAELLA MOTTA, ANTONIO ZANON, GIANFRANCO PICCHI
In Vivo Nov 2007, 21 (6) 1099-1102;

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Risk Factors of Endoleak Following Endovascular Repair of Abdominal Aortic Aneurysm. A Multicentric Retrospective Study
MAURO FREGO, FRANCO LUMACHI, GIORGIO BIANCHERA, FABIO PILON, MARCO SCARPA, CESARE RUFFOLO, LINO POLESE, IMERIO ANGRIMAN, LORENZO NORBERTO, DIEGO MIOTTO, RAFFAELLA MOTTA, ANTONIO ZANON, GIANFRANCO PICCHI
In Vivo Nov 2007, 21 (6) 1099-1102;
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