PMID- 28179611 OWN - NLM STAT- MEDLINE DCOM- 20180228 LR - 20180228 IS - 1347-4820 (Electronic) IS - 1346-9843 (Linking) VI - 81 IP - 5 DP - 2017 Apr 25 TI - Asymptomatic Cocaine Abuse - Myocardial Tissue Characterization Using Cardiac Biomarkers and Cardiovascular Magnetic Resonance Imaging. PG - 701-708 LID - 10.1253/circj.CJ-16-0941 [doi] AB - BACKGROUND: Use of cocaine is widespread and associated with several cardiovascular diseases. Recent CMR studies indicate frequent myocardial scar/fibrosis in asymptomatic cocaine abusers (CA).Methods and Results:This study used a combination of advanced CMR tissue characterization techniques, including late gadolinium enhancement (LGE) for focal, and extracellular volume (ECV) imaging for diffuse myocardial injury/fibrosis, with circulating biomarkers for a comprehensive characterization of myocardial injury. We included 20 cardiac asymptomatic CA and a control group of 20 healthy volunteers. The comprehensive assessment included physical examination, resting ECG, exercise ECG, cardiac biomarkers, transthoracic echocardiogram and CMR. We did not find significant differences between CA and controls either in functional CMR parameters such as LVEDVi, LVESVi, LVEF, LV mass index, or in global myocardial ECV. Neither CA nor controls had evidence of myocardial edema on T2-weighted CMR, but 8 CA (40%), and none of the controls had focal myocardial scar (P<0.01). Interestingly, CA with focal myocardial scar on LGE had significantly higher high-sensitivity troponin I (hs-TNI) compared with CA without focal scar (median, 1.7 ng/L; IQR, 1.3-2.5 ng/L vs. 0.6 ng/L; 0.4-1.3 ng/L; P<0.01). CONCLUSIONS: Focal myocardial injury in terms of subtle LGE in 40% of asymptomatic CA was associated with higher hs-TNI. Comprehensive assessment including advanced ECV imaging indicates a focal rather than diffuse pattern of myocardial involvement in asymptomatic CA. FAU - Radunski, Ulf K AU - Radunski UK AD - Department of General and Interventional Cardiology, University Heart Center Hamburg. FAU - Fuger, Ulrike AU - Fuger U AD - Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf. FAU - Bohnen, Sebastian AU - Bohnen S AD - Department of General and Interventional Cardiology, University Heart Center Hamburg. FAU - Lund, Gunnar K AU - Lund GK AD - Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf. FAU - Stehning, Christian AU - Stehning C AD - Philips Research Germany. FAU - Zeller, Tanja AU - Zeller T AD - Department of General and Interventional Cardiology, University Heart Center Hamburg. FAU - Tahir, Enver AU - Tahir E AD - Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf. FAU - Avanesov, Maxim AU - Avanesov M AD - Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf. FAU - Adam, Gerhard AU - Adam G AD - Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf. FAU - Blankenberg, Stefan AU - Blankenberg S AD - Department of General and Interventional Cardiology, University Heart Center Hamburg. FAU - Reimer, Jens AU - Reimer J AD - Center for Psychosocial Medicine, Health North. AD - Center for Interdisciplinary Addiction Medicine, University of Hamburg. FAU - Muellerleile, Kai AU - Muellerleile K AD - Department of General and Interventional Cardiology, University Heart Center Hamburg. LA - eng PT - Journal Article DEP - 20170207 PL - Japan TA - Circ J JT - Circulation journal : official journal of the Japanese Circulation Society JID - 101137683 RN - 0 (Biomarkers) RN - 0 (Troponin I) SB - IM MH - Adult MH - Biomarkers/blood MH - Cardiomyopathies/*diagnosis/diagnostic imaging/pathology MH - Case-Control Studies MH - Cocaine-Related Disorders/*complications/pathology MH - Edema/diagnostic imaging/etiology MH - Female MH - Fibrosis/diagnostic imaging/etiology MH - Focal Adhesions MH - Humans MH - Magnetic Resonance Imaging/methods MH - Male MH - Troponin I/blood OTO - NOTNLM OT - Cardiac magnetic resonance imaging OT - Cocaine abuse OT - Extracellular volume imaging OT - Myocardial tissue characterization OT - T1 mapping EDAT- 2017/02/10 06:00 MHDA- 2018/03/01 06:00 CRDT- 2017/02/10 06:00 PHST- 2017/02/10 06:00 [pubmed] PHST- 2018/03/01 06:00 [medline] PHST- 2017/02/10 06:00 [entrez] AID - 10.1253/circj.CJ-16-0941 [doi] PST - ppublish SO - Circ J. 2017 Apr 25;81(5):701-708. doi: 10.1253/circj.CJ-16-0941. Epub 2017 Feb 7.