Document Detail

Robotically assisted endoscopic transmyocardial laser revascularization.
MedLine Citation:
PMID:  15266361     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: The surgical approach to transmyocardial laser revascularization (TMR) via thoracotomy has been approved for the treatment of angina in inoperable patients, but it has had limited use as a stand-alone procedure. OBJECTIVES: To assess the feasibility and efficacy of robotically assisted endoscopic TMR using the Zeus robotic surgical system (Computer Motion, USA) and an excimer TMR system (Spectranetics, USA) in a porcine model. METHODS: Five pigs weighing 20 kg to 40 kg were used. A 10 mm endoscope, two 5 mm instrument ports and a 1.4 mm TMR probe were introduced into the left hemithorax. Endoscopic TMR was performed on the anterolateral or lateral left ventricular wall using Zeus instruments to hold and guide the TMR probe. RESULTS: The mean system set-up time was 4.2+/-0.6 min, the mean port placement time was 11+/-1.7 min, the mean TMR procedure time was 5.0+/-0.7 min and the mean number of transmural TMR channels was 10+/-3.6. All pigs tolerated the entire procedure. Histological examination showed that transmural channels were successfully created. CONCLUSIONS: Endoscopic TMR using the Zeus system was feasible, in a pig model, in creating transmural laser channels on the anterior and lateral left ventricle, and may provide a significant advantage over the open chest approach in reducing perioperative morbidity and improving recovery.
Hironori Izutani; Inderjit S Gill; Oleg Svanidze
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Canadian journal of cardiology     Volume:  20     ISSN:  0828-282X     ISO Abbreviation:  Can J Cardiol     Publication Date:  2004 Jul 
Date Detail:
Created Date:  2004-07-21     Completed Date:  2004-09-17     Revised Date:  2008-04-09    
Medline Journal Info:
Nlm Unique ID:  8510280     Medline TA:  Can J Cardiol     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  907-9     Citation Subset:  IM    
Deparment of Thoracic and Cardiovascular Surgery, The Cleveland Clinic Foundation, Cleveland, Ohio 44109, USA.
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MeSH Terms
Endoscopy / methods*
Equipment Design
Feasibility Studies
Heart Ventricles / surgery
Heart-Assist Devices*
Laser Therapy / instrumentation*,  methods*
Models, Animal
Models, Cardiovascular
Myocardial Revascularization / instrumentation*,  methods*
Pericardium / surgery
Treatment Outcome

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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