4 results
A Lewis Lead (also called the S5 lead) is a modified ECG lead used to detect
atrial flutter ... waves when atrial ... clinically, based on signs ... flutter waves may ... #Cardiology #EKG
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
In AVNRT, the atria ... and ventricles contract ... EKG of the same ... excludes other differentials ... PhysicalExam #JVP #Cardiology
Atrial septal defect

An ECG may show the “crochetage” pattern (92% specific)—a notch near the apex of
Atrial septal defect ... apex of the R wave ... #EKG #Cardiology ... #Crochetage #Sign ... #ASD
Negative Contrast Effect in Right Atrium - Differential Diagnosis
1. Small secundum ASD or PFO with left
Atrium - Differential ... Small secundum ASD ... #Atrium #RA #Differential ... #Diagnosis #cardiology ... echocardiogram #s4c