Effects of Coronary Computer Tomography Angiography Screening on Smoking Habits in Asymptomatic Individuals with Family History of Premature Coronary Heart Disease
Nadim Shah1, 2, *, Mohamed Abdulla Alraqabani Almteiri1, Samer Noaman2, Nicholas Cox2, Chiew Wong2, Anne-Maree Kelly2, 3, Kean Soon2
1 Department of Cardiology, Rashid Hospital, Dubai Health Authority, Dubai, United Arab Emirates.
2 Department of Medicine, Melbourne Medical School - Western Precinct, The University of Melbourne, Melbourne, Victoria, Australia.
3 Joseph Epstein Center for Emergency Medicine Research, Western Health, Victoria, Australia.
The Screening for Asymptomatic Coronary Heart disease in the Siblings of young Myocardial Infarction patients study (SACHSMI) investigated the association between index myocardial infarction patient sibling(s) and obstructive coronary heart disease as detected by coronary computer tomography angiography (CCTA). The results of SACHSMI described a statistically significant association between smoking and the prevalence of stenosis detected by CCTA. Data is lacking, however, regarding CCTA screening effects on smoking habits of young individuals.
Fifty asymptomatic siblings of prospectively identified index myocardial infarction patients, aged 55 years or younger, were screened. These 50 sibling participants were shown and explained their CCTA results. The participants were followed up on telephone calls at 1 and 12 months after screening to assess any change in their smoking habits. The primary outcome of interest was to identify any change in the smoking habit among the participants of the SACHSMI study undergoing CCTA 1 and 12 months post scanning.
Of the 50 participants, 20 (40%) had a history of smoking. One month post CCTA, 12 (60%; 95% confidence interval (CI): 36% to 81%) participants either stopped smoking (7/20 (35%; 95% CI: 15% to 59%)) or reduced (5/20 (25%; 95% CI: 9% to 49%)) the number of cigarettes smoked daily. At 12 months post CCTA, 11 (55%; 95% CI: 32% to 77%) participants either stopped smoking (6/20 (30%; 95% CI: 12% to 54%)) or reduced (5/20 (25%; 95% CI: 9% to 49%)) the number of cigarettes smoked daily.
Screening individuals with a family history of premature CHD via CCTA may have the additional benefit of reducing smoking in the short term.
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* Address correspondence to this author at the Department of Cardiology, Rashid Hospital, Dubai Health Authority, Dubai, United Arab Emirates; Tel: +971 4 219 1000; E-mail: firstname.lastname@example.org
Dr. Abdullah Shehab has 22 years of experience in Internal medicine, cardiology and interventional cardiology and medical education. Currently, he serves as the General Secretary of Emirates Cardiac Society and Vice President of Gulf Intervention Society. He is a Fellow of royal college of physicians UK, American college of physician, European society of cardiology, of American college of cardiology, American society of cardiac intervention and fellow of American heart association. Professor Shehab is the Chief editor of Emirates Medical Journal and also serves as editor in many other regional and international journals. Dr. Shehab has published 149 paper in Medline. His research interest includes: Heart failure, Coronary artery disease, Dyslipidaemia, Hypertension, Arrhythmias, Cardiac intervention, Cardiac imaging, Screening for cardiac disease in sport players, Cardiovascular disease in pregnancy.