PMID- 20819117 OWN - NLM STAT- MEDLINE DCOM- 20110602 LR - 20220409 IS - 1540-8183 (Electronic) IS - 0896-4327 (Linking) VI - 23 IP - 5 DP - 2010 Oct TI - No-reflow phenomenon following percutaneous coronary intervention for acute myocardial infarction: incidence, outcome, and effect of pharmacologic therapy. PG - 429-36 LID - 10.1111/j.1540-8183.2010.00561.x [doi] AB - BACKGROUND: No-reflow (NR) phenomenon is a well-known problem, often accompanying percutaneous coronary intervention for acute ST elevation myocardial infarction (STEMI). There are little data on effects of pharmacologic therapy on the resolution, outcome, and long-term natural history of NR. OBJECTIVE: Retrospectively assess incidence, management, and prognosis of NR in a tertiary referral hospital. METHODS: Study included patients with STEMI, treated with percutaneous coronary intervention (PCI). Effect of pharmacologic therapy and long-term outcome were assessed. NR was defined by thrombolysis in myocardial infarction (TIMI) < 3 or myocardial blush grade (MBG) < 3. RESULTS: Of 347 identified subjects, NR occurred in 110 (32%) by TIMI and 198 (57%) by MBG. Higher incidence was identified in men versus women (34% vs. 25% by TIMI, P = 0.08; and 60% vs. 48% by MBG, P = 0.04). Pharmacologic therapy was equally effective in restoring normal flow, increasing TIMI score from 1.62 +/- 0.07 to 2.78 +/- 0.06 (P < 0.0001) and MBG score from 0.43 +/- 0.08 to 2.09 +/- 0.11 (P < 0.0001). Twenty-three percent who did not receive pharmacologic therapy developed clinical composite of congestive heart failure, cardiogenic shock, and/or death; only 9% of patients who received pharmacologic therapy developed this composite. Patients with severe NR despite treatment had poorer prognosis. Sixty-five percent of patients who survived and had repeat angiogram about 1.5 years later had spontaneous improvement in coronary flow by MBG. CONCLUSION: NR is common in STEMI. Treatment with nicardipine, nitroprusside, and verapamil are equally effective in improving flow. If not treated, prognosis is poor. CI - (c)2010, Wiley Periodicals, Inc. FAU - Rezkalla, Shereif H AU - Rezkalla SH AD - Department of Cardiology, Marshfield Clinic, Marshfield, Wisconsin 54449, USA. rezkalla.shereif@marshfieldclinic.org FAU - Dharmashankar, Kodlipet C AU - Dharmashankar KC FAU - Abdalrahman, Ihab B AU - Abdalrahman IB FAU - Kloner, Robert A AU - Kloner RA LA - eng PT - Journal Article DEP - 20100831 PL - United States TA - J Interv Cardiol JT - Journal of interventional cardiology JID - 8907826 RN - 0 (Calcium Channel Blockers) RN - 0 (Vasodilator Agents) RN - 169D1260KM (Nitroprusside) RN - CJ0O37KU29 (Verapamil) RN - CZ5312222S (Nicardipine) SB - IM MH - *Angioplasty, Balloon, Coronary MH - Calcium Channel Blockers/therapeutic use MH - Cardiac Catheterization MH - Female MH - *Fractional Flow Reserve, Myocardial MH - Humans MH - Incidence MH - Male MH - Middle Aged MH - Myocardial Infarction/drug therapy/*therapy MH - Nicardipine/therapeutic use MH - Nitroprusside/therapeutic use MH - Prognosis MH - Retrospective Studies MH - Time Factors MH - Treatment Outcome MH - Vasodilator Agents/therapeutic use MH - Verapamil/therapeutic use EDAT- 2010/09/08 06:00 MHDA- 2011/06/03 06:00 CRDT- 2010/09/08 06:00 PHST- 2010/09/08 06:00 [entrez] PHST- 2010/09/08 06:00 [pubmed] PHST- 2011/06/03 06:00 [medline] AID - JOIC561 [pii] AID - 10.1111/j.1540-8183.2010.00561.x [doi] PST - ppublish SO - J Interv Cardiol. 2010 Oct;23(5):429-36. doi: 10.1111/j.1540-8183.2010.00561.x. Epub 2010 Aug 31.