Work

Konno-Rastan aortic root enlargement for late tunnel-type subaortic stenosis: A case report

Year: 2025

Type: article

Abstract: A 27-year-old woman with prior subaortic membrane resection presented with recurrent tunnel-type subaortic stenosis, severe aortic regurgitation, and a small annulus. She underwent a Konno–Rastan procedure with aortic root enlargement and mechanical valve implantation. Postoperative complete Atrioventricular (AV) block required pacemaker insertion. This rare adult case highlights the strategic use of preoperative indexed Effective Orifice Area (iEOA) calculations to guide surgical planning and avoid patient–prosthesis mismatch (PPM). Additionally, it underscores the feasibility and relevance of the Konno–Rastan technique in adult reoperations, contributing valuable insight into decision-making for anatomically complex Left Ventricular Outflow Tract (LVOT) pathologies.

Source: Cardiovascular Revascularization Medicine Interesting Cases

DOI: 10.1016/j.crmic.2025.100118

Authors: Nail Kahraman, Nöfel Ahmet Binicier

Institutions: Sağlık Bilimleri Üniversitesi, Bursa City Hospital

Language: English

Topic: Cardiac Valve Diseases and Treatments

Subfield: Cardiology and Cardiovascular Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: hybrid

Estimated APC paid: $920