What is RV in ECG?

In patients with inferior STEMI, right ventricular infarction is suggested by: ST elevation in V1. ST elevation in V1 and ST depression in V2 (highly specific for RV infarction) Isoelectric ST segment in V1 with marked ST depression in V2. ST elevation in III > II.

When do you use right sided ECG?

When the patient is suffering acute inferior STEMI a right-sided 12-lead ECG can help to identify right ventricular infarction. Be careful with nitroglycerin in the setting of right ventricular infarction. STEMI patients should be monitored continuously with defibrillation pads in place.

What does a right sided ECG look for?

Right-sided precordial leads are critical to the evaluation of suspected RVMI. Using right-sided precordial leads, ST-segment elevation in lead V4R ≥ 1.0 mm is diagnostic of RVMI. The ECG finding of ST elevation in lead V4R for diagnosis of RVMI has 100% sensitivity, 87% specificity, and 92% predictive accuracy.

Which lead on a 15-lead ECG views the right ventricle?

The commonest additional leads are the posterior leads (V7, V8 and V9) that view the posterior and lateral walls, and the right V4 (RV4) that examine the right ventricle. Therefore, the use of the 15-lead ECG may confirm the STEMI diagnosis while determining its actual extent.

What is RV strain pattern?

Right heart strain (also right ventricular strain or RV strain) is a medical finding of right ventricular dysfunction where the heart muscle of the right ventricle (RV) is deformed.

What is RV infarction?

Acute myocardial infarction (MI) involving only the right ventricle is an uncommon event. More often, right ventricular MI (RVMI) is associated with acute ST-elevation MI of the inferior wall of the left ventricle and occurs in 30 to 50 percent of such cases [1-6].

Which of the following patients requires a right-sided ECG?

All patients with inferior wall myocardial infarction should have a right-sided ECG. ST-segment elevation in lead V4 R is the single most powerful predictor of right ventricular involvement, identifying a high-risk subset of patients in the setting of inferior wall myocardial infarction.

Why do you not give Nitro to right-sided MI?

Nitroglycerin is also contraindicated in the setting of an inferior MI with right ventricular involvement because, in this specific situation, the heart is dependent on preload.

What is RV strain on Echo?

Discussion: The ten echocardiographic findings of right ventricular strain are: increased right ventricle: left ventricle size ratio, abnormal septal motion, McConnell’s sign, tricuspid regurgitation, elevated pulmonary artery systolic pressure, decreased tricuspid annular plane systolic excursion, decreased S’.

What is normal RV LV ratio?

The average RV/LV diameter ratio in the 100 measured CTPA scans by the three residents internal medicine was 1.06 (standard deviation(SD) 0.35), 1.07 (SD 0.29) and 1.00 (SD 0.26) respectively.