ANGINA PECTORIS

DEFINITION:-
It is Chest pain due to ischemia of heart muscles generally due to obstruction or spasm in Coronary Artery.

TYPES:-

  1. Stable: Increases Oxygen demand

  2. Unstable: During rest chest pain

  3. Variant: Similar to classical Angina

  4. Nocturnal: At night associated with rapid eye movement during dreaming.

  5. Decubitis: When patient raised up after lying

  6. Post infraction: After myocardial infraction.

CAUSES:-

There are two main causes for this:
  1. Decrease blood supply in heart
    • Coronary artery disease
    • Circulatory disorders, e.g., Aortic valve stenosis
    • Aortic aneurysm (distension of coronary artery lumen)
    • Blood disorders, e.g., Severe anaemia
    • Hypoxia (Decrease oxygen level in cell/tissue).

  2. Increase blood demand in heart
    • Excessive exercise
    • Excessive emotional level
    • Excessive food intake.

    Others
    • Hypertension
    • Some other heart diseases.

PATHOPHYSIOLOGY:-

    Due to any cause
    Increase oxygen demand in body
    Increase heart workload
    Heart needs more blood supply
    Then coronary artery dilate and supply more blood to heart
    But due to any factors, blood supply defected
    Heart needs more blood demands
    Decreases oxygen level in heart and develop condition of ischemia
    Starts angina (pain) in pectoris (chest muscles)

SIGNS AND SYMPTOMS:-

  • Chest Pain
  • Pallor and cold skin
  • Tachycardia
  • Dyspnea
  • Palpitation (rapid and irregular heart rate)
  • Increases and decreases blood pressure
  • Motionless.

SPECIAL CHARACTERSTICS OF CHEST PAIN:-

  • Location: To left of sternum
  • Severity: Mild to moderate
  • Onset: May quick or slow
  • Radiation: Generally in neck, left shoulder and upper left arm and downward 4th and 5th fingers.
  • Sensation: Burning, bursting, Sensation, patient have gas problem and indigestion.
  • Duration: Less than 5 minutes.

DIAGNOSTIC EVALUATION:-

  • Chest Pain
  • By ECG (ST elevation)
  • Nitroglycerin test (patient feel relief after taking nitroglycerine)
  • Coronary Angiography (it shows CAD)
  • Cardiac catheterization (it shows blockage site of coronary artery).

COMPLICATIONS:-

  • MI
  • Heart Failure

MEDICAL MANAGEMENT:-

  1. Vasodilator:
    They increase blood flow in myocardium (muscles in heart) without affected oxygen requirement and B.P. change.
    Example: Nitrates.


  2. Beta-Blocker:
    Decreases work load in heart by vasodilation action.
    Example:
    • Propranolol- 20-40 mg
    • Atenolol- 20-50 mg.


  3. Calcium channel blockers:
    They improve coronary blood flow.
    Example:
    • Verapamil
    • Nifedipine.


  4. Opiates analgesics:
    They reduce pain.
    Example:
    • Morphine sulphates.


  5. Antiplatelate drugs:
    Blood thinner.
    Example:
    • Aspirin-75-150mg.

SURGICAL MANAGEMENT:-

  • PTCA (Percutaneous transluminal coronary angioplasty)
  • Coronary arteriactomy.
  • Insertion of coronary shunt.
  • CABG (Coronary artery bypass grafting).

DIETARY MANAGEMENT:-

  • We should advice to patient for low fat and low cholesterol diet. They increases extra pressure on heart.
  • Advice to take light and fibers diet.
  • Avoid caffeine intake.
  • Advice to take low sodium diet.
  • Avoid alcohol and smoking.

HEALTH EDUCATION:-

  • Avoid smoking, alcohol, sexual activity.
  • Avoid excessive exercise.
  • Avoid intake of heavy meals.
  • Avoid undue excitement.
  • Avoid sudden exposure of cold weather.

NURSING MANAGEMENT:-

Assessment:

  • Take history of Anginal Pain.
  • Take medical history of patient.
  • Assess anxiety level of patient.
  • Assess knowledge level about family.
  • Assess drugs effects.

NURSING DIAGNOSIS

  • Pain related to myocardial ischemia.
  • Altered cardiac output related to reduced preload and after load.
  • Anxiety related to disease.
  • knowledge deficit related to disease.

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