HYBRID EVENT: You can participate in person at Paris, France or Virtually from your home or work.

3rd Edition of International Heart Congress

June 05-07,2025 | Hybrid Event

June 05 -07, 2025 | Rome, Italy
Heart Congress 2024

Harm reduction in smoking: What does the scientific evidence say?

Cristina Milagre Quadros Borges, Speaker at Heart Conferences
Hcor- Heart Hospital of Sao Paulo, Brazil, Brazil
Title : Harm reduction in smoking: What does the scientific evidence say?


Smoking is considered a chronic disease, caused by chemical dependence of nicotine. This is highly addicting, it in the brain system, it  infuences our emotions increases the feeling of pleasure/humor and reduces the anxiety. In a planet with about 8 billion people, around 1,36 billion are smokers. Cigarette smoking is the leading cause of preventable death in the world, around 8 million people die every year. A global public health problem, and those who smoke are vulnerable to 50 tabacco-related diseases, several kinds of cancer, lung diseases, cardiovascular disease, erectile dysfunction, female infertility and pregnancy complications. In 2020, according to data from the World Health Organization, 22,3% of the world population consumed tabacco, 36,7% of men and 7,8%of women. In brazil, due to policies implemented to smoking control, we had a significant  drop in the of period (1989 to 2019) from 34,8% of smokers to 12,6% and in 2021, the total percentual of smokers age 18 or over was 9.1%. All forms of tobacco consumption are harmful to health and there is no safe level. Cigarette smoke 4.720 differents toxics substances such as nicotine, irritants, alcatroa and carbon monoxide. In the last 15 years, new heated tobacco devices have arrived on the market with promises of less harm to health. In 78 countries this products are available , including Japan, The United States, Canada, Portugal, Astralia, Italy and The United Kingdom. As they do not cause tobacco combustion, they criate significantly lower levels of toxic substances, which is  the strongest arguments made by defenders of those products. A systematic review  of the literature in 2018 on heated tobacco products identified 31 studies randomly and blind over those devices, 11 independent and 20 funded by the products manufacturers, needing further long-term research. Another systematic review (relevant studies from 2015 to Februery 2021), both "in vitro" as alive has shown that the benefit of heated tobacco are controversial and more research is needed to  the short-and-long term health effects. Another large concern is that availability of these smokeless products may encourage cigarette consuption, especially among young people and often with the combined use of traditional cigarettes and heated tobacco products.


 Cardiologist at Hospital of Heart in São Paulo, Clinic Check-up and outpatiente care. Graduated from the College of Medical of Petrópolis, Rio de Janeiro in 2001. Specialization in Clinical Cardiology at the Real and Benemérita Society Portuguese the Beneficência in São Paulo from 2002 to 2004. Specialization in Eletrocardiograpy from University of São Paulo, University of Medical (2004 to 2006). Specialist in Cardiology by Brazilian Society by Cardiology in 2006 and Ergometry  in 2007. Postgraduated in Exercise and Medical Sport (2021 to 2023) and Specialist in Medical Sport by the Brazilian Society of Exercice and Medical Sport in 2023.