8/30/2015

EKG - PR interval

(Click on the image to enlarge)





8/13/2015

Tissue Doppler Imaging - Mitral Lateral Annulus TDI

From Tighe DA, et al. Cardiac Ultrasound Today 2005;11(5):89-116.
(Click on the images to enlarge)

Normal TDI of Lateral Mitral Annulus
(S', E', A' velocities are measured in cm/sec)


Age-related change in Lateral Mitral Annulus TDI
(24 yr old on the left; 82 yr old on the right)


Lateral Mitral Annulus TDI
(Impaired Relaxation: E' velocity is lower than A' velocity)


Lateral Mitral Annulus TDI
(Restrictive Pattern: Both E' & A' velocities are reduced, E' velocity is higher than A' velocity though)

Diastolic Function by Doppler - Mitral Inflow, Pulmonary vein flow (Normals)


Mitral Inflow Doppler (Normal)
DT - DecelerationTime of E wave
Adur - A wave Duration


Pulmonary vein flow Doppler pattern
(S, D and Atrial reversal)

(From Tighe DA, et al. Cardiac Ultrasound Today 2005;11(5):89-116)

Diastolic Function: Echo parameters

Assessment of Diastolic Function using Echo Parameters
Tables from Wyman Lai's Pediatric Echocardiography Textbook (2009)
(Click on the image to enlarge)

Table 8.2: Inflow Doppler Values (Infants & Children)
Adapted from Eidem BW, et al. JASE 2004;17:212-21.

Table 8.3: Annular Doppler Tissue Imaging Values (Infants & Children)


Table 35.3: Echo parameters of diastolic function (Adult)
(Tam JW. et al. Curr Opin Cardiol 2002;17:470-7)

Table 35.4: Echo parameters for diastolic function (Child & Adult)
(Garcia MJ, et al. JACC 1998;32(4):866-75)

(Courtesy: Ashish)

7/21/2015

PA-VSD Decision Tree


From Lofland GK. Progress in Pediatric Cardiology 2009;26:65-70
(Click on the image to enlarge)


7/14/2015

Accessory Hemiazygos Vein


Accessory Hemiazygos Vein

Subclavian Steal - Mechansim

Arteries that form the basis for Subclavian Steal Syndrome



5/05/2015

Oxygen Consumption (Lundell et al. Table)

Adapted from Lundell et al. Pediatr Cardiol 1996;17:207-13.

(Click on image to enlarge)

3/21/2015

Diabolo Stent

Diabolo stent placement technique (Fontan Fenestration)
O.Stumper et al. Heart 2003;89:1227-30.

Technique: 3-4 mm diameter loop is created using temporary epicardial pacing wires as follows: The needle ends are removed. 5 cm of the wire tips are bared of its insulation. The 2 bare wire ends are tied in a loop. This provides ~90 cm long wire. A secure double-knot over a 10-14 French dilator.
The loop is paced over a 15-25 mm Valvuloplasty balloon (?low pressure). J&J P308 or P188/JoMed 17 mm stents are options. The stent is gently dilated using 10-14 French dilator and then, mounted on the balloon - keeping the knotted-loop over the center of balloon.
Deliver using 11-14 Fr Mullin sheath.