Heart failure/Repetitorium

From WikiLectures

Presumed terms : myocardial contractility, blood pressure regulation.

Acute failure[edit | edit source]

Acute failure (cardiogenic shock) – a sudden, so significant decrease in cardiac output that compensatory mechanisms do not guarantee survival. Immediate therapeutic intervention is necessary.

Causes[edit | edit source]

  • Extreme changes in frequency (arrest, ventricular fibrillation );
  • Significant decrease in contractility;
  • Tamponade
  • Sudden failure of the valvular apparatus (rupture of the papillary muscle);
  • (Peripheral resistance - sudden increase, pulmonary embolism).

Chronic (fatigue) failure[edit | edit source]

Heart Failure.gif

Causes[edit | edit source]

Consequences[edit | edit source]

All of the above causes result in a decrease in myocardial contractility, which further causes systolic dysfunction (decrease in Stroke Volume) and diastolic dysfunction (increase in End Diastolic Pressure).

Systolic dysfunction[edit | edit source]

  • SO;
  • BP;
  • GFR;

→ retention of water and electrolytes, RAS.

Diastolic dysfunction[edit | edit source]

  • EDP ​​(ventricular compliance);

→ edema.

Molecular Mechanisms[edit | edit source]

  • Energy;
  • Ca 2+ ;
  • Myocardial remodeling.

AP Propagation Faults[edit | edit source]

Principles of treatment[edit | edit source]

Heart failure with high cardiac output[edit | edit source]

Links[edit | edit source]

Related Articles[edit | edit source]

External links[edit | edit source]

Source[edit | edit source]

References[edit | edit source]

Reference[edit | edit source]

Recommended Reading[edit | edit source]