NewHeart Watanabe Institute · Decision guide
Tokyo, Japan · Robotic Barlow repair using an anatomy-specific strategy
NewHeart Watanabe’s published mitral work focuses on Barlow disease, a complex form of prolapse. The team used artificial chordae as its first strategy and added leaflet resection when needed to manage systolic anterior motion.
The 2015–2022 robotic cohort included 124 selected patients, with no conversion to valve replacement.
Sources: Outcomes of Barlow mitral valve repaired by robot-assisted keyhole surgery.
The report recorded four bleeding events and one stroke; a small incision did not eliminate procedural risk.
Sources: Outcomes of Barlow mitral valve repaired by robot-assisted keyhole surgery.
Freedom from reoperation was 99.2% during mean follow-up of 36 months.
Sources: Outcomes of Barlow mitral valve repaired by robot-assisted keyhole surgery.
Programme operations · Calendar year 2025 · counting date 2025-12-31
Mitral valve operations including combined procedures; all approaches.
NewHeart Watanabe Institute surgical activity and outcomes ↗ · source read 2026-10-08Programme operations · Calendar year 2025 · counting date 2025-12-31
Isolated mitral valve operations; repair/replacement combined; all approaches.
NewHeart Watanabe Institute surgical activity and outcomes ↗ · source read 2026-10-08Programme operations · 2005-12 – 2026-09
Robotic mitral repair category; named combined categories reported separately.
NewHeart Watanabe Institute surgical activity and outcomes ↗ · source read 2026-10-08Programme operations · 2005-12 – 2026-09
Robotic combined mitral repair and tricuspid repair.
NewHeart Watanabe Institute surgical activity and outcomes ↗ · source read 2026-10-08Programme operations · 2005-12 – 2026-09
All robotic cardiac operations across conditions.
NewHeart Watanabe Institute English programme page ↗ · source read 2026-10-08Your diagnosis, selected specialist and treatment priorities.
Sources: Outcomes of Barlow mitral valve repaired by robot-assisted keyhole surgery. · Robot-assisted surgery and team profiles
Sources: Outcomes of Barlow mitral valve repaired by robot-assisted keyhole surgery. · Robot-assisted surgery and team profiles
Tokyo · Japan
cardiac surgeon
Go Watanabe directs NewHeart Watanabe Institute in Tokyo. Its published Barlow strategy uses artificial chordae first and adds leaflet resection when needed to limit systolic anterior motion.
Sources: Outcomes of Barlow mitral valve repaired by robot-assisted keyhole surgery. · Robot-assisted surgery and team profiles
Read alongside Go Watanabe’s profile →
Watanabe coauthored the 2015–2022 series. None of the 124 patients converted to valve replacement; reported complications included four bleeding events and one stroke. Freedom from reoperation was 99.2% during mean follow-up of 36 months.
How to interpret this: Single-institution observational study without a randomized access comparison. Freedom from reoperation is not the same as freedom from recurrent leakage, and authorship does not allocate every case to one surgeon.
Sources: Outcomes of Barlow mitral valve repaired by robot-assisted keyhole surgery.
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