Mastering the Second Heart Sound by Dr. Najeeb Lectures

• Genesis of S2. ( Brief mechanism)
• Factors involved in the genesis of S2.
• Concept of impedance.
• S1 vs S2. (characteristics).
• Duration of S2.
• Pitch of S2.
• Auscultation of S2.
• A2 component auscultation area.
• P2 component auscultation area.

Second Heart Sound Part 2 (Video Description)

• Mastering S2. (Part II ) ( Normal Splitting)
• Genesis of S2. ( brief revision)
• Effect of the respiratory cycle on second heart sound.
• S2 splitting during inspiration (brief mechanism.
• The modern concept of S2 splitting during inspiration.
• Impedance concept. Pulmonary impedance and systemic impedance effect on S2 components i.e A2 & P2.
• Auscultation area for the normal splitting of S2.
• Why in elderly S2 splitting is less likely?