Welcome to my podcast. I am Doctor Warrick Bishop, and I want to help you to live as well as possible for as long as possible. I’m a practising cardiologist, best-selling author, keynote speaker, and the creator of The Healthy Heart Network. I have over 20 years as a specialist cardiologist and a private practice of over 10,000 patients.

Podcast Summary

Introduction

Dr. Warrick Bishop, a cardiologist, author, and CEO of the Healthy Heart Network, hosts this episode to educate listeners about cardiovascular health and disease prevention. In this episode, he shares insights from a Cardiac Society of Australia and New Zealand scientific meeting, specifically focusing on a session about syncope (blackouts) and how to differentiate between cardiac-related, neurological, and other causes of loss of consciousness.

Key Takeaways:

• Syncope refers to a temporary loss of consciousness and can have various causes, including cardiac issues, epileptic seizures, or rare conditions like brain bleeds or psychogenic episodes.

• Cardiac syncope may occur during physical exertion (suggesting valve narrowing) or at rest (suggesting arrhythmia), and typically presents with sudden onset and little to no warning.

• Orthostatic hypotension is a type of syncope triggered by standing up from a seated or lying position, often related to autonomic nervous system breakdown and exacerbated by prolonged standing, recent meals, or exercise.

• Vasovagal or reflex syncope occurs when the parasympathetic nervous system is over-triggered by emotional stress, unpleasant sights, smells, prolonged standing, or crowded environments, often with warning symptoms like feeling hot or nauseous.

• Epileptic seizures typically involve jerking movements (myoclonus) that begin at the onset of loss of consciousness, whereas syncope-related jerking occurs after consciousness is lost due to oxygen deprivation.

• Lateral tongue biting is more indicative of epilepsy, while tip-of-tongue biting or injury may result from cardiac syncope patients falling face-first and being injured.

• A detailed history is crucial for diagnosis, as patients often cannot recall events due to amnesia; information from witnesses or family members present during the episode is invaluable.

• Post-seizure confusion, incontinence, and fatigue are more commonly associated with epilepsy rather than cardiac syncope.

• Family history of sudden cardiac death and presence of structural heart disease increase the likelihood of cardiac causes of syncope.

• Accurate differentiation between syncope types requires careful consideration of prodromal symptoms, triggers, physical presentation, and circumstances surrounding the episode.