quit smoking

Lung Injury

Quitting smoking after a diagnosis of lung cancer improves survival and reduces the risk of disease progression

Lyon, France, 03 August 2021 – A new prospective study of more than 500 adults who were current smokers when diagnosed with lung cancer, published in the Annals of Internal Medicine, provides robust evidence indicating that quitting smoking after a diagnosis of lung cancer is associated with significant improvement in overall survival and disease-free survival among these patients. This report is based on a 15-year collaborative study between the International Agency for Research on Cancer (IARC) and the N.N. Blokhin National Medical Research Centre of Oncology of the Russian Academy of Medical Sciences. This study recruited 517 patients with newly diagnosed non-small-cell lung cancer who were current smokers, from the departments of thoracic surgery at two sites in Moscow, Russian Federation, and followed them up annually for an average of 7 years to record any changes in their smoking behaviour and disease status. “About 42% of the patients (220 participants) in this study quit smoking during the follow-up period. Most of these patients quit smoking within the first 3 months after diagnosis and remained non-smokers until the end of the follow-up time. Patients who quit smoking lived an average of 22 months longer overall and without recurrence of their disease than those who continued smoking,” says Dr Mahdi Sheikh, a scientist in the Genomic Epidemiology Branch at IARC and the lead author of the study. Dr Sheikh adds, “After accounting for differences in the timing of when patients quit, tumour characteristics, and the treatments received, we found that patients who quit smoking have a 33% lower risk of dying from any cause and a 30% lower risk of progression of the disease.” The researchers assessed whether the beneficial effects of smoking cessation could differ on the basis of tumour stage at diagnosis and lifetime smoking intensity. They found that the protective effect of smoking cessation was evident across all subgroups of patients, including those with earlier- and later-stage tumours, and among mild to moderate smokers and heavy smokers. “The study has shown that quitting smoking after lung cancer diagnosis overwhelmingly surpasses the definition of a ‘meaningful benefit’ as proposed by…

Health news

#Breaking : Smoking greatly increases risk of complications after surgery : WHO study

GENEVA 20 January 2020 :Tobacco smokers are at significantly higher risk than non-smokers for post-surgical complications including impaired heart and lung functions, infections and delayed or impaired wound healing. But new evidence reveals that smokers who quit approximately 4 weeks or more before surgery have a lower risk of complication and better results 6 months afterwards. Patients who quit smoking tobacco are less likely to experience complications with anesthesia when compared to regular smokers. A new joint study by the World Health Organization (WHO), the University of Newcastle, Australia and the World Federation of Societies of Anaesthesiologists (WFSA), shows that every tobacco-free week after 4 weeks improves health outcomes by 19%, due to improved blood flow throughout the body to essential organs. “The report provides evidence that there are advantages to postponing minor or non-emergency surgery to give patients the opportunity to quit smoking, resulting in a better health outcome,” said Dr Vinayak Prasad, Head of Unit, No Tobacco, World Health Organization. Quid present in cigarettes, can decrease oxygen levels The Nicotine and carbon monoxide, both present in cigarettes, can decrease oxygen levels and greatly increase risk of heart-related complications after surgery. Smoking tobacco also damages the lungs making it difficult for the proper amount of air to flow through, increasing the risk of post-surgical complications to the lungs. Smoking distorts a patient’s immune system and can delay healing, increasing the risk of infection at the wound site. Smoking just one cigarette decreases the body’s ability to deliver necessary nutrients for healing after surgery. Dr Shams Syed Explaines “Complications after surgery present a large burden for both the health care provider and the patient.  Primary care physicians, surgeons, nurses and families are important in supporting a patient to quit smoking at every stage of care, especially before an operation.” Explained Dr Shams Syed, Coordinator, Quality of Care, WHO. WHO encourages countries to include cessation programmes and educational campaigns in their health systems to spread awareness and help people to quit smoking.