11 results
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics Pharmacology ... to maintain a negative ... contraction force (negative ... inotropy) ACCP Cardiology ... Antiarrhythmics #Pharmacology
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
1 - Sodium Channel ... contraction force (negative ... inotropy) ACCP Cardiology ... Vaughan #Williams #Pharmacology ... pathophysiology #cardiology
Antiarrhythmics - Sodium Channel Blockers
Subclasses, Mechanisms, Indications, Side Effects
la - Quinidine, Procainamide
lb - Lidocaine, Mexiletine
Ic -
Antiarrhythmics - Sodium Channel ... #Blockers #ClassI ... #Na #cardiology ... #pharmacology # ... table #comparison
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
culture negative ... #differential # ... #culture #negative ... InfectiousDiseases #Microbiology ... #CNIE #BCNIE #cardiology
Hemorrhagic Pericardial Effusions (Hemopericardium)- Differential Diagnosis Framework

IATROGENIC DISEASE
Secondary to invasive cardiac procedures

NONIATROGENIC
• Malignancy (e.g., metastatic spread:
Hemopericardium)- Differential ... OTHER RARE CAUSES ... may have false negative ... Hemopericardium #Differential ... #Diagnosis #cardiology
Noncardiogenic Pulmonary Edema - Differential Diagnosis Framework

NCPE Pathophysiology:
Noncardiogenic pulmonary edema occurs because of excessive pulmonary capillary
Pulmonary Edema - Differential ... Causes include: ... for ischemic changes ... #edema #NCPE #differential ... #diagnosis #cardiology
Complex Pericardial Effusion with Tamponade on POCUS Echocardiogram - A4C
Pt sent to ED c intradialytic hypotension.
5.9 without EKG changes ... Cultures including TB negative ... frequently benign causes ... consider serious causes ... A4C #clinical #cardiology
Complex Pericardial Effusion with Tamponade on POCUS Echocardiogram - PLAX
Pt sent to ED c intradialytic hypotension.
5.9 without EKG changes ... Cultures including TB negative ... frequently benign causes ... consider serious causes ... PLAX #clinical #cardiology
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Hypercoagulable (APLAS) Microbiology ... positive in 90% of IE cases ... • Coagulase-negative ... Marantic (NTBE) Differential ... diagnosis #management #cardiology
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Causes of ST Segment ... Elevation - Differential ... dissection • Sodium-channel ... Segment #Elevation #differential ... #diagnosis #cardiology