Asthma, COPD, Emphysema: The Smoking Connection Explained

Asthma, COPD, Emphysema: The Smoking Connection Explained

Every puff of cigarette smoke delivers toxic chemicals deep into your lungs—triggering a cascade of damage that most people don’t realise until it’s too late. Dr. Ferghal Armstrong dives into the devastating effects of smoking on lung health, from early symptoms like chronic cough to advanced stages of chronic obstructive pulmonary disease (COPD) and emphysema.You'll learn how cigarette smoke impacts the respiratory system, destroying protective cilia, paralysing the mucociliary escalator, and overwhelming the lungs' ability to repair themselves. Discover the difference between chronic bronchitis and emphysema, how they contribute to irreversible lung damage, and why many patients don’t get diagnosed until their breathlessness is severe.This video also explains the clinical side: how spirometry detects obstructive patterns, how CT scans reveal emphysematous changes, and why smoking cessation is the only proven way to slow disease progression. We cover genetic risk factors like alpha-1 antitrypsin deficiency, the dangers of secondhand and thirdhand smoke, and how smoking during pregnancy affects fetal lung development.Whether you're a healthcare student, medical professional, or someone affected by smoking, this is your complete guide to understanding the long-term respiratory complications of smoking—and how to protect yourself and others.Chapters00:00 – How Cigarette Smoke First Damages the Lungs00:28 – Lungs: The Organ Most Exposed to Smoking00:51 – The Respiratory Defense System and Cilia Destruction01:10 – Chronic Bronchitis: A Structural Disease01:33 – COPD Explained: Chronic Bronchitis + Emphysema01:52 – Emphysema: Alveolar Breakdown from Smoke02:24 – Symptoms and Clinical Progression of COPD02:47 – Asthma and the Smoking Connection03:04 – Asthma-COPD Overlap Syndrome (ACOS)03:14 – Smoking and Respiratory Infections03:32 – Idiopathic Pulmonary Fibrosis and Smoking03:44 – Cellular and Inflammatory Pathways of Damage04:15 – Genetic Susceptibility and Alpha-1 Antitrypsin Deficiency04:38 – A Typical COPD Patient Case05:02 – Diagnostic Tools: Spirometry, Imaging, and Blood Gases05:15 – Why Smoking Cessation Matters Most05:26 – Secondhand and Thirdhand Smoke Effects05:58 – Impact of Smoking During Pregnancy06:15 – Clinical Advice for Early Detection and Prevention06:59 – Patient Awareness: Link Smoking with Breathlessness07:09 – Teaser for the Next Episode: Smoking and Reproduction

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LAIB - Sublocade

LAIB - Sublocade

Cracking Addiction discusses Sublocade one of the LAIB preparations available and how to commence, maintain and manage any dose changes or complications associated with Sublocade.Sublocade is a long acting injectable buprenorphine (LAIB) manufactured by Invidior that uses the “Atrigel” system to provide for a sustained and prolonged delivery of buprenorphine into the systemic circulation after subcutaneous injection.Discussions and comments in our videos are for informational purposes only and should not replace the advice of your medical professional. Please consult with your doctor before making any changes to your medical treatment or lifestyle.Latest Blogshttps://www.meducate.com.au/blogAbout Meducate ®Meducate provides online education for doctors, clinicians, health professionals and the public.See the website to browse the many different talks and courses available https://www.meducate.com.au

9 Helmi 202215min

LAIB - Buvidal

LAIB - Buvidal

Cracking Addiction discusses Buvidal one of the LAIB preparations available and how to commence, maintain and manage any dose changes or complications associated with Buvidal.Buvidal is a long acting injectable buprenorphine (LAIB) preparation manufactured by Camurus and uses “FluidCrystal” technology to provide for a sustained and prolonged delivery of buprenorphine into the systemic circulation after subcutaneous injection.

3 Helmi 202217min

LAIB  Special Circumstances

LAIB Special Circumstances

Cracking Addiction discusses some of the special or difficult circumstances of prescribing LAIBs including intoxicated patients, pregnant patients, patients with chronic disease, patients with acute pain and our management strategies in these situations.

26 Tammi 202219min

LAIB first dose considerations

LAIB first dose considerations

Episode 23 of Cracking Addiction explores commencement of patients on LAIB, side effects and risks of LAIB, discussion about precipitated withdrawal and when and how to review patients

20 Tammi 202220min

Long Acting Injectable Buprenorphine (LAIB) - Introduction

Long Acting Injectable Buprenorphine (LAIB) - Introduction

An Introduction to Long Acting Injectable Buprenorphine (LAIB)Long acting injectable buprenorphine (LAIB) are long acting buprenorphine depot preparations that are injected subcutaneously and provide patients with a sustained release of buprenorphine for the duration of the depot preparation. Currently, two LAIB products are available for the Australian market. They differ in their formulations, administration and pharmacology.See blog for further informationhttps://www.meducate.com.au/blogAbout Meducate ®Meducate provides online education for doctors, clinicians, health professionals and the public.See the website to browse the many different talks and courses availablehttps://www.meducate.com.au

12 Tammi 202218min

Methadone pharmacokinetics and interactions

Methadone pharmacokinetics and interactions

Episode 21 of Cracking Addiction explores methadone pharmacokinetics, breakdown and interactions within the body and interactions with other drugs.Methadone is a drug with a wide variability in its absorption with oral bio-availability ranges from 35% to 100%. This is a significant amount of variability and explains why the same dose of Methadone can impact different patients differently. Methadone is metabolised within the liver by the cytochrome P450 enzymes but mainly 3A4. There is a 17-fold inter-individual variation of methadone blood concentration for a given dosage and variations in metabolism account for a large part of this variation. Kinetic interactions influenced by the CYP 450 enzyme can affect plasma methadone levels.• Inducers of CYP450 can• Accelerate the metabolism of methadone• lower methadone plasma levels• Precipitate opioid withdrawal • Inhibitors of CYP450 can • Slow the metabolism of methadone• Increase plasma levels• Produce opioid toxicity (sedation, overdose)Methadone is excreted renally with approximately 10% of drug renally eliminated unchanged. Renal excretion of methadone urinary pH dependent with increased Methadone excretion noted at pH less than 6 and decreased Methadone excretion at higher pH levels.About Meducate ®Meducate provides online education for doctors, clinicians, health professionals and the public.See the website to browse the many different talks and courses availablehttps://www.meducate.com.au

22 Joulu 202116min

Methadone pharmacology and induction

Methadone pharmacology and induction

Episode 20 of Cracking Addiction explores methadone, its origins, the pharmacology behind methadone and how to commence a patient on Methadone.Methadone is a synthetic long acting mu receptor agonist suitable for the treatment of opioid use disorder. Methadone has a longer plasma half life than morphine (average 22 hours (15-32 hours) vs 2 hours for morphine) which permits once daily supervised dosing.https://www.meducate.com.au/blogAbout Meducate ®Meducate provides online education for doctors, clinicians, health professionals and the public.See the website to browse the many different talks and courses availablehttps://www.meducate.com.au

15 Joulu 202122min

Opioid use disorder Post Partum

Opioid use disorder Post Partum

Episode 19 of Cracking Addiction explores the management of opioid use disorder in the post partum period.Post birth the patient's usual oral methadone dose can be continued in the peripartum and post partum period. There is a theoretical concern in the postpartum period of over-sedation as methadone levels may increase as plasma volume and hepatic clearance normalise post the delivery of the child. Latest Blogshttps://www.meducate.com.au/blogAbout Meducate ®Meducate provides online education for doctors, clinicians, health professionals and the public.See the website to browse the many different talks and courses availablehttps://www.meducate.com.au

9 Joulu 202111min

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