1. Septal Myectomy Results in Regression of Left Ventricular Hypertrophy in Patients With Hypertrophic Obstructive Cardiomyopathy 
Subrato J. Deb, MD, Hartzell V. Schaff, MD, Joseph A. Dearani, MD, Rick A. Nishimura, MD, Steve R. Ommen, MD 
The Annals of Thoracic Surgery 
Volume 78, Issue 6, Pages (December 2004)
DOI: /j.athoracsur

2. Fig 1
Left ventricular (LV) mass (□) and left ventricular mass index (■) before and after transaortic septal myectomy. Mass regression was apparent on the early postoperative study and continued through the first 2 years after the operation. *p < 0.05 versus baseline.
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )

3. Fig 2
Early change in left ventricular (LV) mass among younger and older patients. *p < 0.05 versus baseline. ■ = younger than 50 years; □ = older than 50 years.
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )