E-cig study says vaping has no negative health effects on myocardial functions
The Centers for Disease Control and Prevention (CDC) recently made headlines last week when the agency announced a new study showing that teen smoking rates are plummeting nationwide while vaping is on the rise. This data directly contradicts years of previous statements by the CDC claiming that vaping is a gateway to teen smoking. While vaping is not without its fair share of detractors, at least one small group of European doctors is coming to its defense.
In a first-of-its-kind vaping study, a team of scientists led by Dr. Konstantinos E Farsalinos from the Onassis Cardiac Surgery Center in Kallithéa, Greece, has concluded that vaping results in no negative health effects to the heart. Meanwhile, smoking even one cigarette has immediate ramifications. The e-cig study entitled Acute effects of using an electronic nicotine-delivery device (electronic cigarette) on myocardial function: comparison with the effects of regular cigarettes is readily available in the online medical journal BMC Cardiovascular Disorders.
Guidelines of the myocardial e-cig study
The team of European scientists began by soliciting a group of volunteers consisting of 36 smokers and 40 vapers between the ages of 30 and 41 years old. The smoking group had a history of smoking at least 15 cigarettes per day for at least five years or longer. Meanwhile, the vaping group consisted of all former-smokers who had remained completely cigarette-free for a period of at least 30-days.
(Related Article: TWO-YEAR STUDY: 42% OF LONG-TERM VAPERS QUIT SMOKING PERMANENTLY)
On several occasions throughout the course of the e-cig study, the researchers called the participants into the lab for a review of their myocardial functions both before and after either smoking or vaping, depending on the associated group. The smokers were always sent to a completely different room than the vapers. And the vapers were always asked to use the same e-cig device, the same e-liquid of 11ml nicotine concentrations, and the same vaping temperatures. They were also asked to vape for the same length of time – 7 minutes.
The heart functions measured before and after for both groups of participants included:
- Diastolic and Systolic BP
- Heart Rate and Blood Pressure
- Left ventricle (LV) Diameter and Mass Index
- Glucose, Triglyceride and Cholesterol Levels
- Isovolumetric Relaxation Time (IVRT)
- IVRT Corrected to Heart Rate (IVRTc)
- Myocardial performance index
- And several other related cardiovascular functions
After a long series of tests, the researchers discovered that the vaping group experienced no measurable adverse effects in any of the above conditions. Meanwhile, the smoking group exhibited immediate myocardial inflammation, oxidative stress, and other associated damage.
"This is the first study to examine the acute effects of electronic cigarette use on myocardial function. No adverse effects on LV [left ventricular] myocardial function were observed after using electronic cigarette with nicotine-containing liquid for 7 minutes. On the contrary, significant changes in diastolic function parameters were found after smoking 1 tobacco cigarette."
"This study provides the first clinical evidence that electronic cigarettes have less acute adverse effects on myocardial function when compared to tobacco cigarettes."
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