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Shinya Unai · Decision guide

Shinya Unai: endocarditis and complex repeat surgery

Endocarditis and complex repeat cardiac reconstruction · Cleveland, Ohio, United States

Research by Yevhenii Kozlov · Co-Founder of BookimedUpdated 8 October 2026Sources linked throughout

At a glance

Shinya Unai’s Cleveland Clinic practice explicitly includes endocarditis and complex reoperative surgery. Infection can extend beyond a valve into the root or tissue between valves, requiring more extensive reconstruction.

Reconstruction beyond one valve

His clinical profile includes endocarditis, repeat surgery, aortic/root surgery and valve repair or replacement.

Sources: Shinya Unai, MD — cardiac surgery profile

Imaging can understate invasion

In a historical 644-patient native aortic endocarditis cohort, 260 had invasive disease at surgery; preoperative echo detected invasion in 43% of those cases.

Sources: The Hidden Burden of Native Aortic Valve Endocarditis: Reevaluating Diagnostic and Pathologic Challenges.

Complex abscess surgery

A 154-adult mitral-abscess cohort reported that 27% required reconstruction of the aortomitral continuity with a Commando procedure.

Sources: Mitral valve abscess: echocardiographic imaging, microbiology, management, and outcomes.

Shinya Unai, MDPortrait source ↗

cardiac surgeon

Shinya Unai

Cleveland Clinic →

Cardiac surgeon, Cleveland Clinic Main Campus

Cardiac surgeon, Cleveland Clinic Main Campus · Cleveland, Ohio, United States.

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Benefits and limitations

Potential advantages

Trade-offs and limits

Procedure-specific research

Abscess disease needs context

A 2026 coauthored report describes 154 adults with mitral valve abscess drawn from historical Cleveland databases. Many required complex surgery, including reconstruction of the aortomitral continuity.

How to interpret this: A high-risk referral cohort with variable follow-up, not a contemporary personal success rate. Mortality over all follow-up must not be presented as a fixed-year risk.

Sources: Mitral valve abscess: echocardiographic imaging, microbiology, management, and outcomes.

Clinical programme

Cleveland Clinic →

Cleveland, Ohio, United States

Cleveland’s cardiac services bring together different expertise: Gillinov’s mitral/robotic work, Smedira’s myectomy practice, Kapadia’s catheter valve treatment and Unai’s endocarditis and redo reconstruction. Its published cohorts show why valve anatomy and supporting tissues can matter as much as the incision.

Sources: Surgical management of left ventricular outflow tract obstruction in a specialized hypertrophic obstructive cardiomyopathy center · Early results of robotically assisted mitral valve surgery: Analysis of the first 1000 cases · Samir Kapadia, MD · Shinya Unai, MD — cardiac surgery profile · Mitral and Tricuspid Valve Center · Robotically Assisted Mitral Valve Repair: Patient Applications Grow · Nicholas Smedira — current clinical profile · Transcatheter or Surgical Aortic-Valve Replacement in Low-Risk Patients at 7 Years. · The Hidden Burden of Native Aortic Valve Endocarditis: Reevaluating Diagnostic and Pathologic Challenges. · Mitral valve abscess: echocardiographic imaging, microbiology, management, and outcomes.

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