Yong Cui · Decision guide

Yong Cui: septal myectomy and minimally invasive HCM surgery

Name: Yong Cui: septal myectomy and minimally invasive HCM surgery
Creator: Yevhenii Kozlov

HCM surgery addressing the septum and mitral supporting structures · Hangzhou, China

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

At a glance

Yong Cui’s team has published HCM surgery through an incision near the right armpit, leaving the breastbone intact. The newer 100-patient MESM series reported a substantial reduction in outflow obstruction; the earlier 148-patient series also describes correction of abnormal structures supporting the mitral valve.

Relief of outflow obstruction

In the 100-patient MESM study, the mean pressure gradient across the narrowed outflow fell from 85.8 to 8.4 mmHg. These were early postoperative results.

Sources: Minimally Invasive Electro Septal Myectomy for HOCM Through a Right Infra-Axillary Incision

4–5 cm incision; breastbone intact

The study used an incision near the right armpit. No patient in that series required conversion to sternotomy.

Sources: Minimally Invasive Electro Septal Myectomy for HOCM Through a Right Infra-Axillary Incision

Reported HCM programme experience

Practice experience, annual activity and individual study populations are shown separately with their sources.

Sources: MESM: minimally invasive electro septal myectomy · Yong Cui practice profile

Portrait source ↗

cardiac surgeon

Yong Cui

Zhejiang Provincial People’s Hospital →

Director of Cardiovascular Surgery, Zhejiang Provincial People’s Hospital (practice profile)

Director of Cardiovascular Surgery, Zhejiang Provincial People’s Hospital (practice profile) · Hangzhou, China.

Read the clinical or research source ↗

Reported surgical experience

1,000+ septal myectomies

Programme operations · Cumulative; counting cutoff not stated

HCM myectomy programme using an underarm route that preserves the breastbone.

MESM programme / Yong Cui ↗ · source read 2026-10-08

5,000+ Minimally invasive cardiac operations across conditions

Programme operations · Cumulative; counting cutoff not stated

Minimally invasive heart operations across conditions since 2018; this is broader than HCM.

Yong Cui practice overview ↗ · source read 2026-10-08

250+ septal myectomies

Programme operations · Calendar year 2024 · published 2025-01-31 · counting date 2024-12-31

Right infra-axillary modified-Morrow myectomies. This technique-specific count is a minimum for the programme’s total myectomy activity; other approaches are not included.

心有“勇”术｜崔勇：寻道创新，微步致远 ↗ · source read 2026-10-08

Compare septal myectomy experience →

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Benefits and limitations

Potential advantages

Preserving the breastbone removes a major recovery burden: healing a surgically divided sternum. Daily movement can focus on comfort, the chest-wall wound and gradually rebuilding activity.
Sources: MESM: 100-patient observational study · Guy’s and St Thomas’: breastbone healing and movement after heart surgery

Trade-offs and limits

In the 100-patient MESM series, four patients required a permanent pacemaker and no in-hospital deaths were observed. This selected, single-centre study reports early outcomes without a matched sternotomy group; zero observed deaths does not mean zero risk.
Sources: Minimally Invasive Electro Septal Myectomy for HOCM Through a Right Infra-Axillary Incision

Procedure-specific research

Right infra-axillary transaortic myectomy with documented subvalvular work.

148 patients. September 2021–July 2023 · published 2024. Papillary resection in 72/148 (48.6%); chordal resection in 93/148 (62.8%); papillary reorientation in 15/148 (10.1%). Procedures overlap. Numerical follow-up duration was not specified in the inspected report.

How to interpret this: Cui is senior/corresponding author; the full paper does not explicitly assign all operations to him personally. Selected single-centre approach series without a sternotomy control group. Pacemaker risk is affected by baseline conduction abnormalities. This is the earlier modified-Morrow series, not the newer 100-patient MESM series.

Sources: An innovative minimally invasive approach for HOCM: transaortic septal myectomy via right infra-axillary incision · Yong Cui practice profile

Electro-septal sculpting through a 4–5 cm right infra-axillary incision.

100 patients. November 2023–May 2024 · print publication 2026. A distinct newer technique cohort. The practice site describes a long electrocautery instrument; the study abstract reports aortic cross-clamping. Early postoperative outcomes; long-term duration unavailable in the abstract.

How to interpret this: Cui is senior/corresponding author and the practice site’s technique proponent. Personal operator count is not established by the abstract. Abstract-only review. Do not sum this cohort with other publications or the practice website’s lifetime claims. Zero observed deaths does not mean zero risk.

Sources: Minimally Invasive Electro Septal Myectomy for HOCM Through a Right Infra-Axillary Incision · MESM: minimally invasive electro septal myectomy

Clinical programme

Zhejiang Provincial People’s Hospital →

Hangzhou, China

The Hangzhou team has published operations that relieve obstructive HCM through an incision near the right armpit. Its newer 100-patient MESM study reports early relief of obstruction while preserving the breastbone. An earlier study also treated abnormal mitral-valve supports that contributed to the blockage.

Sources: An innovative minimally invasive approach for HOCM: transaortic septal myectomy via right infra-axillary incision · Minimally Invasive Electro Septal Myectomy for HOCM Through a Right Infra-Axillary Incision · Yong Cui practice profile · MESM: minimally invasive electro septal myectomy · Cui team: 2024 annual clinical activity report (published 31 January 2025)

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