title: Spontaneous Sealing of a Type Ia Endoleak after Ovation Stent Graft Implantation in a Patient with On-Label Aortic Neck Anatomy.
abstract: We report a case of an early type Ia endoleak after endovascular aneurysm repair (EVAR) of an abdominal aortic aneurysm by Ovation Stent Graft implantation and spontaneously resolved without further reintervention. The patient presents a conical aortic neck, but EVAR was performed within the instruction for use proposed by manufactory. At completion angiography, a low-flow type Ia endoleak was present and left untreated. Computed tomographic angiography performed on the third postoperative day showed infolding of the 2 sealing rings. The patient was dismissed without further treatment. At 3-month follow-up, the leak appeared spontaneously sealed with partial expansion of the 2 rings.
authors.affiliation: Vascular and Endovascular Surgery Division, Department of Surgery "Paride Stefanini", Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy. Electronic address: chiara.pranteda@gmail.com.
authors.forename: Chiara
authors.initials: C
authors.lastname: Pranteda
authors.affiliation: Vascular and Endovascular Surgery Division, Department of Surgery "Paride Stefanini", Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy.
authors.forename: Pasqualino
authors.initials: P
authors.lastname: Sirignano
authors.affiliation: Vascular and Endovascular Surgery Division, Department of Surgery "Paride Stefanini", Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy.
authors.forename: Laura
authors.initials: L
authors.lastname: Capoccia
authors.affiliation: Vascular and Endovascular Surgery Division, Department of Surgery "Paride Stefanini", Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy.
authors.forename: Wassim
authors.initials: W
authors.lastname: Mansour
authors.affiliation: Vascular and Endovascular Surgery Division, Department of Surgery "Paride Stefanini", Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy.
authors.forename: Nunzio
authors.initials: N
authors.lastname: Montelione
authors.affiliation: Vascular and Endovascular Surgery Division, Department of Surgery "Paride Stefanini", Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: Speziale
mesh_terms: D000368:Aged; D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging / Q000601:surgery*; D001027:Aortography; D001807:Blood Vessel Prosthesis; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects* / Q000295:instrumentation*; D000072226:Computed Tomography Angiography; D057867:Endoleak / Q000000981:diagnostic imaging / Q000209:etiology*; D057510:Endovascular Procedures / Q000009:adverse effects* / Q000295:instrumentation*; D006801:Humans; D008297:Male; D011474:Prosthesis Design; D012075:Remission, Spontaneous; D015607:Stents; D013997:Time Factors