Article "Development of the European Network in Orphan Cardiovascular Diseases" „Rozszerzenie Europejskiej Sieci Współpracy ds. Sierocych Chorób Kardiologicznych” Title: Treatment of aortic aneurysms in patients with congenital heart disease Author: Jakub Podolec MD, PhD Affiliation: Interventional Cardiology Department, Cardiology Institute, Collegium Medicum, Jagiellonian University at the John Paul II Hospital, Krakow, Poland Introduction and literature review Aortic diseases enclose wide spectrum of arterial diseases and include aortic aneurysms, acute aortic syndromes (AAS) including aortic dissection (AD), intramural haematoma (IMH), penetrating atherosclerotic ulcer (PAU) and traumatic aortic injury (TAI), pseudoaneurysm, aortic rupture, atherosclerotic and inflammatory affections, as well as genetic diseases (e.g. Marfan syndrome) and congenital abnormalities including the coarctation of the aorta (CoA). Mortality rate from aortic aneurysms and AD increased from 2.49 per 100 000 to 2.78 per 100 000 inhabitants between 1990 and 2010, with higher rates for men. The incidence of abdominal aortic aneurysms have been reduced in the recent years [1, 2]. Aortic diameter over 6.0 cm have a fivefold increased risk of rupture, with a yearly risk of rupture of 14.1% [3] Bobylev D et al. reviewed 51 patients with thoracic aneurysms. For ascending aortic aneurysms, conduit replacement is the method of choice. The David procedure provides good results in selected patients. For descending aortic aneurysms, graft replacement is the John Paul II Hospital in Kraków Jagiellonian University, Institute of Cardiology 80 Prądnicka Str., 31-202 Kraków; tel. +48 (12) 614 33 99; 614 34 88; fax. +48 (12) 614 34 88 e-mail: rarediseases@szpitaljp2.krakow.pl www.crcd.eu preferred procedure [4]. Complications include endoleaks, aortic aneurysm evolutions, stent graft infections, proximal and distal dissections after stent graft implantations. Reports of strokes after stent graft placement vary from 0 to 18% and the complications are very often severe [5]. Diagnosis Imaging techniques including Chest X-ray, Transthoracic and transesophageal echocardiography, PET, MRI and aortography play an important role in the diagnostic evaluation, but computed tomography plays a central role in the diagnosis, risk stratification, and management of aortic diseases. It is recommended that diameters be measured at pre-specified anatomical landmarks, perpendicular to the longitudinal axis. In the case of repetitive imaging of the aorta over time, to assess change in diameter, it is recommended that the same imaging modality with the lowest iatrogenic risk be used [6]. Treatment Thoracic endovascular repair (TEVAR) is performed by retrograde transarterial advancement of delivery device (up to 24 F) carrying the collapsed self- expandable stent-graft. According the ESC guidelines from 2014 the endovascular abdominal aortic aneurysm repair might be performed if the proximal aortic neck (defined as the normal aortic segment between the lowest renal artery and the most cephalad extent of the aneurysm) should have a length of at least 10 – 15 mm and should not exceed 32 mm in diameter. The iliofemoral axis has to be evaluated by CT, since large delivery devices (14 – 24 F) are being used. Aneurysmal disease of the iliac arteries needs extension of the stent graft to the external iliac artery [6]. Conclusions Thoracic aortic aneurysms in patients with congenital heart disease is highly associated with bicuspid aortic valve and aortic coarctation. The close follow up especially in patients with coarctation of the aorta and bicuspid aortic valve is of great importance. Akin I et al. suggest that rather than replacing conventional surgical treatment, endovascular repair more likely John Paul II Hospital in Kraków Jagiellonian University, Institute of Cardiology 80 Prądnicka Str., 31-202 Kraków; tel. +48 (12) 614 33 99; 614 34 88; fax. +48 (12) 614 34 88 e-mail: rarediseases@szpitaljp2.krakow.pl www.crcd.eu will play a complementary and less invasive option in the treatment aortic aneurysms. Risk estimation in patients qualified for surgical treatment is mostly based on the clinical presentation and co-morbidities of a patient. The main limitations for andovascular treatment are mostly based on anatomical criteria. The treatment should be performend in well qualified centers with both interventional cardiology and surgery departments on site. Qualification of those patients should be based on multidisciplinary approach with close follow up of all patients. References 1. Sampson UKA, Norman PE, Fowkes GR, Aboyans V, Song Y, Harrell FE, Forouzanfar MH, Naghavi M, Denenberg JO, McDermott MM, Criqui MH, Mensah GA, Ezzati M, Murray C. Global and regional burden of aortic dissection and aneurysms. Global Heart 2014;8:171–180. 2. Sampson UKA, Norman PE, Fowkes GR, Aboyans V, Song Y, Harrell FE, Forouzanfar MH, Naghavi M, Denenberg JO, McDermott MM, Criqui MH, Mensah GA, Ezzati M, Murray C. Estimation of global and regional incidence and prevalence of abdominal aortic aneurysms 1990 to 2010. Global Heart 2014;8: 159 – 170. 3. Davies RR, Goldstein LJ, Coady MA, et al. Yearly rupture or dissection rates for thoracic aortic aneurysms: simple prediction based on size. Ann Thorac Surg 2002;73:17–27. 4. Bobylev D, Boethig D, Breymann T, Mathoni A, Horke A, Ono M. Surgical Treatment of Thoracic Aortic Aneurysms in Patients with Congenital Heart Disease. Thorac Cardiovasc Surg. 2014 Jul 4. [Epub ahead of print] 5. Akin I, Nienaber CA. Interventional treatment strategies of thoracic aortic pathologies. Eur Rev Med Pharmacol Sci. 2014;18(17):2562-74. 6. Erbel R, Aboyans V, Boileau C, Bossone E, Bartolomeo RD, Eggebrecht H, Evangelista A, Falk V, Frank H, Gaemperli O, Grabenwöger M, Haverich A, Iung B, Manolis AJ, Meijboom F, Nienaber CA, Roffi M, Rousseau H, Sechtem U, Sirnes PA, Allmen RS, Vrints CJ; ESC Committee for Practice Guidelines. 2014 ESC Guidelines John Paul II Hospital in Kraków Jagiellonian University, Institute of Cardiology 80 Prądnicka Str., 31-202 Kraków; tel. +48 (12) 614 33 99; 614 34 88; fax. +48 (12) 614 34 88 e-mail: rarediseases@szpitaljp2.krakow.pl www.crcd.eu on the diagnosis and treatment of aortic diseases: Document covering acute and chronic aortic diseases of the thoracic and abdominal aorta of the adult. The Task Force for the Diagnosis and Treatment of Aortic Diseases of the European Society of Cardiology (ESC). Eur Heart J. 2014 Nov 1;35(41):2873-926. ……………………………………….. Author’s signature* [* Signing the article will mean an agreement for its publication] John Paul II Hospital in Kraków Jagiellonian University, Institute of Cardiology 80 Prądnicka Str., 31-202 Kraków; tel. +48 (12) 614 33 99; 614 34 88; fax. +48 (12) 614 34 88 e-mail: rarediseases@szpitaljp2.krakow.pl www.crcd.eu