Videos Archive Page 20 of 61 Armando Hasudungan

Methotrexate – Pharmacology (DMARDs, mechanism of action, side effects)

Armando Faigl March 9, 2020 No Comments

Learn about methotrexate, a key disease-modifying antirheumatic drug (DMARD) used to treat autoimmune conditions and certain cancers. This video explains its mechanism of action, pharmacologic properties, and common side effects…

Nephritic Syndrome – classification, pathophysiology, treatment (RPGN, ANCA, Immune complex)

Armando Faigl March 1, 2020 No Comments

Explore nephritic syndrome, a kidney disorder characterized by hematuria, hypertension, and reduced kidney function. This video covers its classification—including RPGN, ANCA-associated, and immune complex types—along with the underlying pathophysiology and…

Atrial Fibrillation Overview – ECG, types, pathophysiology, treatment, complications

Armando Faigl February 9, 2020 No Comments

Atrial Fibrillation (AF) is the most popular arrhythmia and diagnosed by the finding of an irregularly irregular ventricular rhythm without discrete P waves. AF is a supraventricular tachycardia. In AF…

Approach to dysphagia (difficulty swallowing) – causes, pathophysiology, investigation

Armando Faigl February 4, 2020 No Comments

Dysphagia is the sensation of difficulty or abnormality of swallowing. It is due to a structural or a motility abnormality in the passage of solids or liquids from the mouth…

Granulomatosis with polyangiitis – pathophysiology and management

Armando Faigl January 1, 2020 No Comments

Granulomatosis with polyangiitis (Wegener’s) explained: learn causes, symptoms, diagnosis, and treatment of ANCA-associated vasculitis. ANCA-associated vasculitis targets small blood vessels and is driven by P-ANCA (anti-myeloperoxidase) or C-ANCA (anti-proteinase 3)…

AVRNT (atrioventricular re-entry tachycardia) – causes, pathophysiology, treatment

Armando Faigl January 1, 2020 No Comments

Discover atrioventricular re-entry tachycardia (AVRNT), a common type of supraventricular tachycardia caused by abnormal electrical conduction within or near the AV node. This video explains its causes, re-entry circuit mechanism,…

Arrhythmia Overview – Mechanism of bradyarrhythmia and tachyarrhythmia

Armando Faigl December 28, 2019 No Comments

Explore the fundamentals of cardiac arrhythmias, focusing on the mechanisms behind bradyarrhythmias (slow heart rhythms) and tachyarrhythmias (fast heart rhythms). This video breaks down the electrical disturbances, conduction system abnormalities,…

Hypersensitivity type III – immune complex mechanism and examples

Armando Faigl December 15, 2019 No Comments

Type 3 hypersensitivity (immune complex) reactions explained: how antigen–antibody complexes trigger complement-driven inflammation. Learn the mechanism of immune complex formation, clearance failures, and tissue deposition that cause localized (Arthus reaction,…

Hypersensitivity Type II (Cytotoxic reaction) – causes, pathophysiology, complement system

Armando Faigl November 29, 2019 No Comments

Explore Type II hypersensitivity, a cytotoxic immune reaction where antibodies target cells leading to destruction via the complement system or immune cells. This video covers the causes, underlying pathophysiology, and…

Hypersensitivity Type I reaction (Immediate or allergic reaction) – pathophysiology

Armando Faigl November 24, 2019 No Comments

Type 1 hypersensitivity (allergic reaction) explained: learn the IgE‑mediated mechanism, symptoms, and when it becomes life‑threatening. This video breaks down immediate hypersensitivity, showing how first exposure to an allergen (pollen,…

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