143 results
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Multifocal Atrial ... Secondary to chronic lung ... disease (COPD) ... • Hypoxia • Pulmonary ... Tachycardia #MAT #Cardiology
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Mismatch • Airway Disease ... • Parenchymal Disease ... • Interstitial lung ... diseasePulmonary ... Defect ** • Atrial
Atrial Fibrillation Overview

Symptoms:
Palpitations, light-headedness, dizziness, dyspnea, exercise intolerance, chest pain, near-syncope, syncope.

1. Why?
Cardiac:
• Valvular heart disease
•
Atrial Fibrillation ... Noncardiac: • Pulmonary ... Anticoagulation #Atrial ... #Fibrillation #Cardiology ... #Management #Algorithm
Atrial Fibrillation - Diagnosis, Causes, Presentations
Causes (PIRATES):
 - Pulmonary embolism 
 - Ischemia (cardiac) 
 -
Atrial Fibrillation ... (PIRATES): - Pulmonary ... - Repiratory disease ... myxoma - Thyroid disease ... PIRATES #Emergency #Cardiology
Diagnostic algorithm for a child or adolescent with suspected pulmonary hypertension. CHD, congenital heart disease; CPET,
congenital heart disease ... arterial hypertension ... veno-occlusive disease ... ; CLD, chronic lung ... disease; LFT, liver
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
lymphoproliferative disease ... lesions • 80% with lung ... • Metastatic disease ... demyelinating diseases ... diagnosis #causes #radiology
Clinical Classification of Pulmonary Hypertension

1. Pulmonary arterial hypertension from pulmonary vasculopathy
Idiopathic pulmonary arterial hypertension
Heritable gene mutations
Pulmonary arterial ... arterial hypertension ... due to lung disease ... lung disease Other ... pulmonary disease
CNS Ring-Enhancing Lesions - Differential Diagnosis
 • Infections: Cerebral abscess (bacterial, fungal, parasitic), Neurocysticercosis, Tuberculoma, Cerebral
CNS Ring-Enhancing ... Malignancy: Metastases (lung ... Demyelinating Disease ... StanfordChiefs #CNS ... Diagnosis #neurology #radiology
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation: CNS ... Embolism, Obstructive Lung ... Disease and more ... , Interstitial Lung ... Gradient #alveolar #arterial
Hepatopulmonary Syndrome (HPS) 

HPS-differential diagnosis:
1. Pulmonary vasculature
2. Diseases of the lung parenchyma
3. Pleura and diaphragm

HPS-diagnosis:
1. Patients
Pulmonary vasculature ... Diseases of the ... lung parenchyma ... Patients with liver disease ... Alveolar-arterial