Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
Heart failure
THERAPUTIC STRATEGIES |
Diuretics
ACE inhibitors beta blockers Vasodilators Digoxin- for chronic heart failur beta 1 selective agonists PDE inhibitors |
|
Digoxin
תאור |
Cardiac glycoside- steroid + lactone rind+ sugar residues
Block Na/K pump thus increase contractility and CO |
|
Digoxin
effects |
increase contractility and CO
Electrical effects: prolong PR- slow ventricular rate Shorten QT, invert T, ST depression |
|
Digoxin
Toxicity |
Increased automaticity due to Ca overload- PVB- Bigeminy
chronic:arrhythmias(thaccicardia and fibrilation), nausea, vomiting, diarrhea acute intoxication (suiiccied) will result in cardiac depression and arrest. Treatment: תיקון מדדי הפוטסיום והמגנזיום in chronic case. in the acute case there is usually hyperkalemia so no k. antiarrhythmic drugs digoxin antibodies - digibind |
|
beta 1 selective agonists
|
Dobutamine
Dopamine given in acute heart failure |
|
beta blockers
|
carvediol
metoprolol בטיפול במצב כרוני ובבעלי לב מוגדל |
|
PDE inhibitors
|
theophilline
Amrinonr Milrinon אותו אפקט כמו לבטה אגוניסט |
|
Vasodilators
|
acute: Nitroprusside
Nitroglycerin chronic: Hydralazine Isosorbide dinitrate |
|
Diuretics
|
Furosemide
Tiazide K sparring |
|
ACE inhibitors
|
Captopril
Losartan |