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Antiarrhythmic_agents

Antiarrhythmic_agents


Arrhythmia, āĻ…āύেāĻ• āφāĻ—ে āĻŽāύে āĻ•āϰāϤাāĻŽ āĻļāĻŦ্āĻĻেāϰ āφāĻ—ে A āĻŽাāύে āĻšāϞ 'āύা', āϤাāχ Arrhythmia āĻŽাāύে āĻšāϞ absent rhythm! āĻĒāϰে āĻšিāϏেāĻŦ āĻ•āϰে āĻĻেāĻ–āϞাāĻŽ absent āĻšāϞে āϤো āϰোāĻ—ী āĻŽāϰে āĻ­ুāϤ āĻšā§Ÿে āϝাāĻ“ā§Ÿাāϰ āĻ•āĻĨা, āϤাāĻšāϞে āĻāϟা absent āĻšāĻŦে āύা, āĻāχ A āĻšāĻŦে abnormal! āφāϰ āĻāĻ•āϟু āĻ—āĻ­ীāϰāĻ­াāĻŦে āϚিāύ্āϤা āĻ•āϰāϞে Absent rhythm (āĻ›āύ্āĻĻ), āĻšাāϰ্āϟāĻŦিāϟেāϰ āĻ•োāύ āĻ›āύ্āĻĻ āύাāχ, āĻāχ āφāϏ্āϤে āϤো āĻāχ āϜোāϰে!

āϤো āĻāχ abnormal rhythm āĻĒ্āϰা⧟āĻļāχ heart āĻ āĻĒাāĻ“ā§Ÿা āϝা⧟, āĻ•াāϰāĻŖ heart āĻāĻ•āϟা electrical organ! electrical organ āĻšāĻ“ā§Ÿাāϰ āĻ•াāϰāĻŖ āĻ•িāύ্āϤু āĻļুāϧু electricity āύা, āϏাāĻĨে electrolyte āĻ“ āφāĻ›ে। āφāϰ āĻāχ electrolyte imbalance āĻšāϞেāχ āĻļāϰীāϰেāϰ āĻŦিāĻ­িāύ্āύ āϜāϟিāϞāϤাāϰ āϏাāĻĨে heart āĻāĻ“ āϜāϟিāϞāϤা āĻĻেāĻ–া āϝা⧟।

Heart āĻāϰ action potential āĻ āϜেāύেāĻ›ি āϏেāĻ–াāύে Na K Ca āĻāϰ āĻ•িāĻ›ু āφāĻĻাāύ āĻĒ্āϰāĻĻাāύ āφāĻ›ে। āϝেāĻŽāύ Na ECF āĻ āĻŦেāĻļি, āφāϰ K āĻŦেāĻļি Cell āĻ। Na āϝāĻ–āύ ECF āĻĨেāĻ•ে Cell āĻ āϝা⧟ āϤāĻ–āύ depolarization āĻšā§Ÿ, āφāϰ K āϝāĻ–āύ Cell āĻĨেāĻ•ে ECF āĻ āĻŦেāϰ āĻšā§Ÿ āϤāĻ–āύ repolarization āĻšā§Ÿ। āĻāχ depolarization āĻ“ repolarization āĻāϰ āĻŽাāĻে āĻāĻ•āϟা āϏāĻŽāϤāϞ plateu phase āφāĻ›ে, āϝেāĻ–াāύে K Cell āĻĨেāĻ•ে ECF āĻ āφāϏে, āφāϰ āϏেāϟাāĻ•ে āĻŦ্āϝাāϞেāύ্āϏ āĻ•āϰāϤে Ca āϝা⧟ ECF āĻĨেāĻ•ে Cell āĻ, āĻĻুāϟো āĻŽিāϞে āϏāĻŽাāύ āϏāĻŽাāύ!

āωāĻĒāϰেāϰ āϘāϟāύা āωāϞāϟ āĻĒাāϞāϟ āĻšāϞেāχ heart āĻāϰ rhythm āĻ“ āωāϞāϟ āĻĒাāϞāϟ āĻšā§Ÿে āϝা⧟, āĻšā§Ÿ cardiac arrhythmia.

āφāϰ āϤাāχ arrhythmia āĻāϰ āϚিāĻ•িā§ŽāϏা⧟ āĻ…āύেāĻ• āĻ•িāĻ›ুāϰ āϏাāĻĨে āωāĻĒāϰেāϰ āĻ“āχ āϚ্āϝাāύেāϞ āĻ—ুāϞোāϰ blocker āĻŦ্āϝāĻŦāĻšাāϰ āĻ•āϰা āĻšā§Ÿ, āϝেāĻŽāύ-
- Na channel blocker
- K channel blocker
- Ca channel blocker
āφāϰ āĻāχ electrical activity āĻļুāϧু electrolyte āĻĻি⧟েāχ āĻšā§Ÿ āύা, āϏাāĻĨে āφāĻ›ে autonomic nervous activity āĻŦিāĻļেāώ āĻ•āϰে sympathetic, āϤাāχ āϏেāϟা āĻŦ্āϞāĻ• āĻ•āϰāϤে āĻŦ্āϝāĻŦāĻšৃāϤ āĻšā§Ÿ-
- Beta blocker

āϤাāĻšāϞে āϏāĻŦ āĻŽিāϞি⧟ে āĻŽোāϟ āϚাāϰ āĻĒ্āϰāĻ•াāϰ blocker, āϝাāĻĻেāϰ āϚাāϰāϟা class āĻ āĻ­াāĻ— āĻ•āϰা āĻšā§Ÿ-
Class 1: Na channel blocker
Class 2: Beta blocker
Class 3: K channel blocker
Class 4: Ca channel blocker

Class 1: Na channel blocker
āĻāϰা Na channel āĻ•ে āĻŦ্āϞāĻ• āĻ•āϰে action potential duration āĻ•ে āĻŦা⧜া⧟, āĻ•āĻŽা⧟ āĻŦা āĻ…āĻĒāϰিāĻŦāϰ্āϤিāϤ āϰাāĻ–ে। āϤিāύ āϰāĻ•āĻŽ āĻ•াāϜ āĻ•āϰে āĻŦিāϧা⧟ āĻāĻĻেāϰ āφāĻŦাāϰ āϤিāύāĻ­াāĻ—ে āĻ­াāĻ— āĻ•āϰা āϝা⧟-

1a: action potential duration āĻŦা⧜া⧟।
> Queen Proclaimed Pyramid
Quinidine
Procainamide
Disopyramide

1b: action potential duration āĻ•āĻŽা⧟।
> Linda's Mexican Toffee
Lidocaine
Mexiletine
Tocainamide

1c: action potential duration āĻ…āĻĒāϰিāĻŦāϰ্āϤিāϤ āϰাāĻ–ে, āĻ•িāύ্āϤু āĻ…āύ্āϝ āĻĒāϰিāĻŦāϰ্āϤāύ āĻšā§Ÿ।
> More Fries Please
Moricizine
Flecainide
Propafenone

Class 2: Beta blocker
> MBA
Metoprolol
Bisoprolol
Atenolol

Class 3: K channel blocker
K cell āĻāϰ āĻŦাāχāϰে āĻŦেāϰ āĻšāϤে āĻĒাāϰāĻŦে āύা, āĻāϤে repolarization āĻļুāϰু āĻšāĻŦে āύা, āĻĢāϞে action potential duration āĻŦা⧜āĻŦে।
> AIDS
Amiodarone
Ibutilide
Dronedarone
Sotalol

Class 4: Ca channel blocker
āĻāϰা centrally acting, āĻĢāϞে heart rate āĻ•āĻŽে।
> āĻĻুāϟো āĻĒāϰিāϚিāϤ āύাāĻŽ
Verapamil
Diltiazem

āωāĻĒāϰে āϝা āĻĒ⧜েāĻ›ি āϤাāϰ āĻŽāϧ্āϝে  Amiodarone āĻāĻ•āϟু āϏ্āĻĒেāĻļাāϞ, āϤাāϰ āĻāĻ•āϟা āĻ•াāϰāĻŖ āĻāϤে āĻĒ্āϰāϚুāϰ iodine āĻĨাāĻ•ে āϝা thyroxine production āĻŦা⧜া⧟। āφāϰ āĻĻুāχ, āϤāϰāĻ•াāϰীāϤে āφāϞুāϰ āĻŽāϤ āϤাāĻ•ে āϏāĻŦ āĻļ্āϰেāĻŖীāϤেāχ āĻĢেāϞা āϝা⧟!

anti arrhythmic drug āĻšিāϏেāĻŦে āφāĻŽāϰা āφāϰো āĻ•িāĻ›ু āĻāϜেāύ্āϟ āĻŦ্āϝāĻŦāĻšাāϰ āĻ•āϰি, āĻ•িāύ্āϤু āϤাāϰা āωāĻĒāϰেāϰ āĻ•োāύ āĻŽেāĻ•াāύিāϜāĻŽেāχ āĻ•াāϜ āĻ•āϰে āύা। āϤাāϰা āĻšāϞ-
Adenosine
Ibavradine
Digoxin (āĻŦেāĻļ āϏ্āĻĒেāĻļাāϞ āĻ“āώুāϧ, āĻ•াāϰāĻŖ āωāĻĒāϰেāϰ āĻ…āϧিāĻ•াংāĻļāĻ—ুāϞো heart failure āĻ āĻĻেāĻ“ā§Ÿা āϝা⧟ āύা, āĻ•াāϰāĻŖ āϤাāϰা heart rate āĻ“ cardiac output āĻĻুāϟোāχ āĻ•āĻŽা⧟। āφāϰ digoxin āĻļুāϧু heart rate āχ āĻ•āĻŽা⧟ āĻ•িāύ্āϤু cardiac output āĻ•āĻŽা⧟ āύা!)

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