Dysrhythmia Tachycardia Ultrasound 
Dr. Smith's ECG Blog
SEPTEMBER 19, 2023
I find AV dissociation in VT to be very difficult to differentiate from artifact, as there are always random blips on tachycardia tracings. Pads were placed with ultrasound guidance, so they were in the correct position. If you don't know what the dysrhythmia is, then try procainamide. Ken notes AV dissociation. What to do now?
Dr. Smith's ECG Blog
JANUARY 2, 2025
Bedside cardiac ultrasound showed moderately decreased LV function. Because she has cardiomyopathy and ventricular dysrhythmias, the pacer included an Implanted Cardioverter-Defibrillator (ICD) Echo 6 days later after CRT: Normal estimated left ventricular ejection fraction. Even with tachycardia and a paced QRS duration of ~0.16
Dr. Smith's ECG Blog
JULY 22, 2012
Interpretation: There is sinus tachycardia, with right bundle branch block (RBBB). Blunt cardiac injury my result in : 1) Acute myocardial rupture with tamponade 2) Valve rupture (tricuspid, aortic, mitral) 3) Coronary thrombosis or dissection (and thus Acute MI) from direct coronary blunt injury 4) Dysrhythmias of all kinds.
Dr. Smith's ECG Blog
OCTOBER 10, 2022
Cardiac Ultrasound may be a surprisingly easy way to help make the diagnosis Answer: pulmonary embolism. Now another, with ultrasound. Then there is loss of pulses with continued narrow complex on the monitor ("PEA arrest") Learning Points: Sudden witnessed Cardiac Arrest due to ACS is almost always due to dysrhythmia.
Dr. Smith's ECG Blog
NOVEMBER 30, 2019
Is it ventricular tachycardia (VT) due to hyperK or is it a supraventricular rhythm with hyperK? On arrival, the patient was in shock, was intubated, and had an immediate cardiac ultrasound. What does a heart look like on ultrasound when the EKG looks like that? They transported to the ED. How would you treat?
Dr. Smith's ECG Blog
APRIL 8, 2016
Bedside ultrasound showed no effusion and moderately decreased LV function, with B-lines of pulmonary edema. See here for management of Polymorphic Ventricular Tachycardia , which includes Torsades. Could the dysrhythmias have been prevented? He was managed medically with Clopidogrel. He appeared to be in shock.
Dr. Smith's ECG Blog
NOVEMBER 19, 2016
Smith comment: This patient did not have a bedside ultrasound. Had one been done, it would have shown a feature that is apparent on this ultrasound (however, this patient's LV function would not be as good as in this clip): This is recorded with the LV on the right. In fact, bedside ultrasound might even find severe aortic stenosis.
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