Histologic findings of transmyocardial laser channels after two hours

G Lutter; J Schwarzkopf; C Lutz; J Martin; F Beyersdorf

doi:10.1016/s0003-4975(98)00161-1

Histologic findings of transmyocardial laser channels after two hours

Ann Thorac Surg. 1998 May;65(5):1437-9. doi: 10.1016/s0003-4975(98)00161-1.

Authors

G Lutter¹, J Schwarzkopf, C Lutz, J Martin, F Beyersdorf

Affiliation

¹ Department of Cardiovascular Surgery, University of Freiburg, Germany. lutter@ch11.ukl.uni-freiburg.de

PMID: 9594881
DOI: 10.1016/s0003-4975(98)00161-1

Abstract

Histologic examination of the human myocardium has been performed several days, weeks, and months after transmyocardial laser revascularization. We performed microscopic examinations 2 hours postoperatively. In addition to the patent channel (diameter, 1 mm) and a 1-to 2-mm rim of necrosis, a 1- to 3-mm zone of myofibrillary degeneration was found. This additional reversible injury immediately after transmyocardial laser revascularization could explain the higher mortality rate in patients with reduced left ventricular function.

Publication types

Case Reports
Research Support, Non-U.S. Gov't

MeSH terms

Aged
Arrhythmias, Cardiac / etiology
Cardiac Output, Low / etiology
Edema, Cardiac / pathology
Fatal Outcome
Follow-Up Studies
Humans
Laser Therapy / methods*
Male
Myocardial Revascularization / methods*
Myocardium / pathology*
Myofibrils / ultrastructure
Necrosis
Survival Rate
Vascular Patency
Ventricular Dysfunction, Left / complications
Ventricular Dysfunction, Left / surgery