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Congenital Heart Surgeons' Society Data Center
LVOTO: Critical Left Ventricular Outflow Tract Obstruction Study


Enrollment in this study has been suspended. Please see the CHSS Memo LVOTO Enrollment Pause document below:

Optimal Management of Critical Left Ventricular Outflow Tract Obstruction:
A Congenital Heart Surgeons' Society Study (LVOTO Study)
OPERATIONS MEMORANDUM LVOTO #1

To: LVOTO Investigators and Coordinators
From: Congenital Heart Surgeonsí Society Data Center (CHSS Data Center) in consultation with the Congenital Heart Surgeonsí Society (CHSS) Research Committee
Re: LVOTO hold on enrollment
Date: December 12, 2019

This memorandum is to inform you that we are temporarily pausing enrollment in the LVOTO study starting Saturday December 21, 2019. Please follow-up with any patients you have approached for this study but do not approach any patients after Friday December 20, 2019.

The Research Committee has decided, based on information provided by the CHSS Data Center, to put a hold on enrollment in this study. We currently have over 1,200 patients enrolled. The hold on enrollment will allow the CHSS Data Center to catch up on the backlog for data entry in this cohort.

Please submit all required enrollment data to the CHSS Data Center as soon as possible so that we may confirm eligibility of these patients.

The LVOTO study is NOT closing. Annual follow-up of all currently enrolled patients will continue so please keep your IRB ACTIVE/OPEN. The CHSS Data Center will notify you when new enrollment will be open again.

Please contact CHSS Data Center Operations Manager, Sunita O'Shea if you have any questions.

Thank you

Dr. William DeCampli
Managing Director CHSS Data Center


Study Protocol

Enrollment & Registration

Approval Letter

Consent & Assent and Cover Letters

For Parent/Guardian: For Patient/Adult:


Data Collection Forms

  1. To be abstracted at the CHSS Data Center, Toronto

    1. General Forms