Acute Effects of Smoking on Diastolic and Systolic Cardiac Function of Healthy Smokers according to 2D Speckle Tracking Echocardiography

Mehdi Pishgahi; Fatemeh Mahmoudi; Kimia Karimi Toudeshki

International Cardiovascular Research Journal

The Official Annually Journal of Cardiovascular Research Center, Shiraz University of Medical Sciences

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Acute Effects of Smoking on Diastolic and Systolic Cardiac Function of Healthy Smokers according to 2D Speckle Tracking Echocardiography

Author(s):

Mehdi Pishgahi

¹,

Fatemeh Mahmoudi²,

Kimia Karimi Toudeshki

^1,*

1Cardiology Department, Shohada-e-Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran

2Internal Medicine Department, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran

International Cardiovascular Research Journal:Vol. 17, issue 1; e132828

Published online:Mar 31, 2023

Article type:Research Article

Received:Apr 01, 2022

Accepted:Jun 25, 2023

How to Cite:Mehdi PishgahiFatemeh MahmoudiKimia Karimi ToudeshkiAcute Effects of Smoking on Diastolic and Systolic Cardiac Function of Healthy Smokers according to 2D Speckle Tracking Echocardiography.Int Cardiovasc Res J.17(1):e132828.

Abstract

Background: Smoking is a preventable cause of human death. While the chronic effects of smoking on cardiovascular health are well known, its acute effects remain obscure.

Objectives: This study aimed to assess the acute effects of smoking on left ventricle (LV) diastolic and systolic cardiac function and right ventricle (RV) systolic function in healthy smokers.

Methods: In this before-after (quasi-experimental) study conducted at Modarres and Shohada-e-Tajrish hospitals in Tehran, Iran, healthy smokers were asked to discontinue smoking and caffeine for half an hour. Then, they underwent echocardiography by the same echo-cardiologist at baseline and 10 minutes after smoking a single cigarette with 10 mg of nicotine. The 2D speckle tracking mode illustrated the diastolic and systolic ventricular functions.

Results:Among 80 participants were 54 males (67.5%) and 26 females (32.5%). The mean age was 36.8 ± 13.6 years. The mean smoking history was 7.3 ± 7.5 pack years. Significant changes occurred after smoking in the global longitudinal strain (GLS), E/A ratio, and pulmonary artery systolic pressure (P = 0.001). No changes occurred in other factors including ejection fraction (EF), S wave velocity of septum, tricuspid annular plane systolic excursion (TAPSE), and right ventricular systolic function (SRV) (P > 0.05).

Conclusions: This study was carried out as a pilot for larger clinical studies to demonstrate the acute effects of smoking on heart function and cardiovascular health. Our findings indicate that smoking acutely affects both right and left ventricular parameters on echocardiography.

Keywords

Smoking

Cardiotonic Agents

Acute Phase

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