Functional comparison of transmyocardial revascularization by mechanical and laser means  Keith A Horvath, MD, Noam Belkind, BS, Irene Wu, BS, Rodney.

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Functional comparison of transmyocardial revascularization by mechanical and laser means  Keith A Horvath, MD, Noam Belkind, BS, Irene Wu, BS, Rodney Greene, BS, John Doukas, PhD, Jon W Lomasney, MD, David D McPherson, MD, David A Fullerton, MD  The Annals of Thoracic Surgery  Volume 72, Issue 6, Pages 1997-2002 (December 2001) DOI: 10.1016/S0003-4975(01)03243-X

Fig 1 Functional results of treatment of myocardium by various transmyocardial revascularization devices or no device (control). Shown is the change in contractility from baseline to posttreatment as measured echocardiographically. The Annals of Thoracic Surgery 2001 72, 1997-2002DOI: (10.1016/S0003-4975(01)03243-X)

Fig 2 Representative photomicrographs of the ischemic zone from each group (200× magnification). Each series has a section stained for collagen (first frame, Mallory’s trichrome), endothelial cells (second frame, factor VIII), and arterioles (third frame, anti-α-actin). (A) Untreated control; (B) normothermic needle; (C) excimer laser; (D) hot needle; (E) ultrasonic needle. The Annals of Thoracic Surgery 2001 72, 1997-2002DOI: (10.1016/S0003-4975(01)03243-X)