Left Ventricular Ejection Hemodynamics in Patients with Hypertrophic Cardiomyopathy and Valvular Aortic Stenosis


  • Study type

  • Study IDs

  • Describes the nature of a clinical study. Types include:

    • Observational study — observes people and measures outcomes without affecting results.
    • Interventional study (clinical trial) — studies new tests, treatments, drugs, surgical procedures or devices.
    • Medical records research — uses historical information collected from medical records of large groups of people to study how diseases progress and which treatments and surgeries work best.
  • Site IRB
    • Rochester, Minnesota: 15-004606
    Sponsor Protocol Number: 15-004606

About this study

The purpose of this study is to compare ejection hemodynamics in patients with obstructive hypertrophic cardiomyopathy (HCM) before and after septal myectomy.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. If you need assistance understanding the eligibility criteria, please contact the study team.

See eligibility criteria

Inclusion Criteria:

  • Group I:
    • Patients with HCM and dynamic subaortic obstruction
    • >18 years of age
    • Undergoing surgical myectomy via trans-aortic approach
  • Group II:
    • Patients with aortic stenosis
    • >18 years of age
    • Patients undergoing isolated AVR with either mechanical or bioprosthetic valve.

Exclusion Critieria:

  • None

Participating Mayo Clinic locations

Study statuses change often. Please contact us for help.

Mayo Clinic Location Status

Rochester, Minn.

Mayo Clinic principal investigator

Hartzell Schaff, M.D.

Closed for enrollment

More information


Publications are currently not available

Study Results Summary

Not yet available

Supplemental Study Information

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