PMID- 20552589 OWN - NLM STAT- MEDLINE DCOM- 20101004 LR - 20211020 IS - 1932-8737 (Electronic) IS - 0160-9289 (Print) IS - 0160-9289 (Linking) VI - 33 IP - 6 DP - 2010 Jun TI - Improving myocardial perfusion by percutaneous coronary intervention reduces central sympathetic activity in stable angina. PG - E16-21 LID - 10.1002/clc.20676 [doi] AB - BACKGROUND: By stimulating sympathetic afferents, repetitive myocardial ischemia induces a state of increased sympathetic tone. HYPOTHESIS: Removing the ischemic trigger by revascularization using percutaneous coronary intervention (PCI) might thus reduce central sympathetic activity in symptomatically stable angina patients. METHODS: A total of 20 patients with stable angina > or = New York Heart Association (NYHA) class II with persistent symptoms despite maximal pharmacological therapy and a clinical indication for PCI, were included in our study. Sympathetic nervous system activity was measured before and 1 month after PCI by a combination of techniques: direct muscle sympathetic nerve activity (MSNA), neurochemical (plasma catecholamine levels), and heart rate variability (HRV). RESULTS: All patients completed the study. After PCI there was a significant reduction in MSNA (pre-PCI 72 +/- 4 to post-PCI 53 +/- 4 burst/100 beats, P < .05) and low frequency/high frequency (LF/HF) ratio (3.7 +/- 0.6 vs 2.4 +/- 0.4, P < .05) consistent with a decline in sympathetic activity. Plasma norepinephrine levels were reduced after PCI, but this difference did not reach statistical significance (1.84 +/- 0.17 vs 1.73 +/- 0.13 nmol/L, P = not significant). CONCLUSION: Coronary revascularization by PCI reduces sympathetic activity in patients with established myocardial ischemia. FAU - Gomes, Marc E AU - Gomes ME AD - Department of Cardiology, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands. FAU - Aengevaeren, Wim R AU - Aengevaeren WR FAU - Lenders, Jacques W AU - Lenders JW FAU - Verheugt, Freek W AU - Verheugt FW FAU - Smits, Paul AU - Smits P FAU - Tack, Cees J AU - Tack CJ LA - eng PT - Journal Article PL - United States TA - Clin Cardiol JT - Clinical cardiology JID - 7903272 RN - 0 (Biomarkers) RN - X4W3ENH1CV (Norepinephrine) SB - IM MH - Aged MH - Angina Pectoris/blood/etiology/physiopathology/*therapy MH - *Angioplasty, Balloon, Coronary MH - Biomarkers/blood MH - *Coronary Circulation MH - Electric Stimulation MH - Electrocardiography MH - Female MH - Heart Rate MH - Humans MH - Male MH - Middle Aged MH - Muscle, Skeletal/innervation MH - Myocardial Ischemia/blood/complications/physiopathology/*therapy MH - Netherlands MH - Norepinephrine/blood MH - Severity of Illness Index MH - Sympathetic Nervous System/metabolism/*physiopathology MH - Time Factors MH - Treatment Outcome PMC - PMC6653192 EDAT- 2010/06/17 06:00 MHDA- 2010/10/05 06:00 PMCR- 2010/04/30 CRDT- 2010/06/17 06:00 PHST- 2010/06/17 06:00 [entrez] PHST- 2010/06/17 06:00 [pubmed] PHST- 2010/10/05 06:00 [medline] PHST- 2010/04/30 00:00 [pmc-release] AID - CLC20676 [pii] AID - 10.1002/clc.20676 [doi] PST - ppublish SO - Clin Cardiol. 2010 Jun;33(6):E16-21. doi: 10.1002/clc.20676.