26 results
Severity of Aortic Stenosis in Adults 
Current ACC/AHA guidelines recommend cut-off values for Doppler-echocardiographic measurements of
0.6 cm2/m2, mean gradient ... transvalvular gradient ... , inconsistent grading ... and normal LV functions ... <1 cm2 with a gradient
Pulmonary stenosis - severity - Grading of pulmonary stenosis

#Diagnosis #Cardiology #Pulmonic #Pulmonary #Stenosis #Severity #Grading #Classification
Pulmonary stenosis ... - severity - Grading ... of pulmonary stenosis ... #Stenosis #Severity ... #Grading #Classification
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
by A-a Gradient ... Normal A-a Gradient ... compliance ↑ A-a Gradient ... #pulmonary #Aa ... #Gradient
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Approach to the A-a Gradient ... A-a gradient = ... PAO2 - PaO2 A-a gradient ... A-a Gradient ≤ ... Hypoxia #hypoxemia #differential
Hepatopulmonary Syndrome (HPS) 

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

HPS-diagnosis:
1. Patients
(HPS) HPS-differential ... Pulmonary vasculature ... Alveolar-arterial oxygen gradient ... vasodilatation HPS-severity ... HPS #hepatology #pulmonary
Diastolic Function Grading - Schematic diastolic filling patterns

I: impaired relaxation, II: moderate diastolic dysfunction (pseudonormal), III:
Diastolic Function ... Grading - Schematic ... velocities, PVF: pulmonary ... atrium, PASP: pulmonary ... #Dysfunction #Grading
Deciphering the SAAG - Serum to Ascites Albumin Gradient
Ascites is either made in the liver sinusoid
Ascites Albumin Gradient ... Scott Matherly @liverprof ... Serum #Albumin #Gradient ... Interpretation #Differential
Diagnosis of ascites according to the serum ascites albumin gradient (SAAG)
SAAG ≥ 1.1:
 - Ascitic protein
ascites albumin gradient ... ascites #albumin #gradient ... #hepatology #differential ... #diagnosis #algorithm
Mitral stenosis - Recommendations for classification of mitral stenosis severity

Valve area, 
Mean gradient and 
Pulmonary artery
mitral stenosis severity ... Valve area, Mean gradient ... and Pulmonary
Hypochloremia - Differential Diagnosis Algorithm

Cause - Decreased Intake:
 • Low salt in diet
 • Exclusive D5W
Hypochloremia - Differential ... Diagnosis Algorithm ... transport, renal function ... gastrointestinal osmotic gradient ... #Diagnosis #Algorithm