Document Detail


Intracoronary cyclic-GMP and cyclic-AMP during percutaneous transluminal coronary angioplasty.
MedLine Citation:
PMID:  8793574     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We investigated intracoronary cyclic-guanosine monophosphate (c-GMP) levels during percutaneous transluminal coronary angioplasty (PTCA) since experimental studies have shown the endothelial origin of c-GMP production. Intracoronary c-GMP and cyclic adenosine monophosphate (c-AMP) were measured during coronary angioplasty in 24 patients with chronic coronary artery disease. Four coronary blood samples were taken through a catheter from the coronary artery the first sample before coronary angiography and the other three from distal to coronary obstruction, as follows: before the balloon inflation, at the maximum inflation and 5 min after restoration of coronary flow. c-GMP increased from 7.9 +/- 1.0 pmol/ml and 7.5 +/- 0.9 pmol/ml before angiography and balloon inflation to 11.1 +/- 1.3 pmol/ml at the maximum inflation (P < 0.01), with a trend to decrease 5 min after the end of the intervention (9.5 +/- 1.0 pmol/ml, P: NS). Intracoronary c-AMP levels remained almost unchanged. Five venous samples were taken to measure c-AMP before coronary angiography, before PTCA, and 5 min, 2 h and 24 h after PTCA. c-AMP values 2 and 24 h after PTCA (17.8 +/- 1.7 pmol/ml and 17.5 +/- 1.7 pmol/ml, respectively) were lower than the highest value (22.1 +/- 2.1 pmol/ml) found 5 min after PTCA, (P < 0.001). c-GMP increases distal to coronary obstructive lesion during PTCA at the time of balloon inflation, while c-AMP remains unchanged. c-AMP rises in venous circulation only. PTCA stimulates the mechanism of c-GMP release, while systemic c-AMP increase seems to be related to the stress occurring during catheterisation and PTCA.
Authors:
D T Kremastinos; E K Iliodromitis; M Markianos; T S Apostolou; Z S Kyriakides; G K Karavolias
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal of cardiology     Volume:  53     ISSN:  0167-5273     ISO Abbreviation:  Int. J. Cardiol.     Publication Date:  1996 Mar 
Date Detail:
Created Date:  1996-11-27     Completed Date:  1996-11-27     Revised Date:  2006-07-12    
Medline Journal Info:
Nlm Unique ID:  8200291     Medline TA:  Int J Cardiol     Country:  IRELAND    
Other Details:
Languages:  eng     Pagination:  227-32     Citation Subset:  IM    
Affiliation:
Cardiac Department, Athens General Hospital, Greece.
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MeSH Terms
Descriptor/Qualifier:
Aged
Analysis of Variance
Angioplasty, Transluminal, Percutaneous Coronary*
Coronary Disease / metabolism*,  therapy
Cyclic AMP / blood,  metabolism*
Cyclic GMP / blood,  metabolism*
Female
Humans
Male
Middle Aged
Chemical
Reg. No./Substance:
60-92-4/Cyclic AMP; 7665-99-8/Cyclic GMP

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