Paolo Ferrazzi · Decision guide
HCM myectomy with correction of abnormal secondary chordae · Monza, Italy
Paolo Ferrazzi’s Monza work treats obstructive HCM by removing excess heart muscle and selectively cutting abnormal cords that pull on the mitral valve. The aim is to open the outflow pathway while keeping the patient’s own valve. The published 350-patient study has a median 5.6 years of follow-up.
The technique targets abnormal secondary chordae contributing to obstruction, rather than routinely cutting normal valve supports.
The 2026 report includes 350 consecutive patients, with median follow-up of 5.6 years and follow-up available for 344.
At latest follow-up, 271 patients were in NYHA class I and 65 in class II—little or mild limitation of activity.
cardiac surgeon
Cardiac surgeon and HCM researcher associated with Policlinico di Monza
The 2026 paper records his Monza HCM research affiliation; the scientific-director title is documented in the hospital’s 2023 brochure.
Read the clinical or research source ↗Personal operations · Cumulative; counting cutoff not stated · source edition 2022-06-29
Personal myectomy experience in a June 2022 hospital brochure; includes expertise in mitral secondary-chordal work.
Policlinico di Monza HCM brochure ↗ · source read 2026-10-08Your diagnosis, selected specialist and treatment priorities.
Sources: Ferrazzi et al. · JACC 2026 · 350 patients · Policlinico di Monza · heart centre brochure (2023) · AHA/ACC HCM guidance (2024)
The 2026 JACC report studied 350 consecutive patients treated at one centre over a five-year operating period. Follow-up was available for 344 patients. At the latest assessment, 271 were in NYHA class I and 65 in class II.
How to interpret this: These are centre-cohort results, not Ferrazzi’s independently audited personal total. This observational study did not compare this technique directly with Cui’s MESM or other European surgeons.
Monza, Italy
Monza’s HCM work combines muscle resection with correction of selected abnormal secondary mitral chordae. The purpose is anatomical relief of obstruction while retaining the native valve, with longer follow-up than a purely early feasibility report.
Sources: Ferrazzi et al. · JACC 2026 · 350 patients · Policlinico di Monza · heart centre brochure (2023) · Monza · HCM research programme (March 2026)
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