Anaesthesia Coffee Break

Cardiovascular Physiology Categorisation Drills for the exam PART 1

Jul 23, 2021
Lahiru and Dan dive deep into cardiovascular topics, starting with practical study tips for exam preparation. They explore hypotension classification, differentiating between bradycardic and tachycardic cases. The duo discusses various shock types and the critical balance of oxygen supply and demand leading to myocardial ischemia. Key determinants of coronary perfusion and blood flow are examined, providing insight into autoregulation and resistance. Strategies for managing tachycardia and optimizing anesthesia techniques are also highlighted, making for a rich learning experience.
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ANECDOTE

Quality Trumps Quantity In Training

  • Dan (Stan) relayed a conversation with Craig Tiley about training quality versus quantity.
  • He applies this to study: focused, objective-driven sessions beat long unfocused hours.
ADVICE

Systematic Hypotension Checklist

  • Use the PRELOAD, RATE, RHYTHM, CONTRACTILITY, AFTERLOAD framework for any hypotension assessment.
  • Systematically check and treat each element rather than reflexively giving a single vasopressor.
INSIGHT

Vasopressors Can Fudge The Numbers

  • Repeated metaraminol boluses can mask falling cardiac output if preload or contractility are the real problem.
  • Persistent need for vasopressor should prompt reassessment for ischemia, hypovolaemia, or pump failure.
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