1. Acute hemodynamic benefit of multisite ventricular pacing after congenital heart surgery 
Frank J Zimmerman, MD, Joanne P Starr, MD, Peter R Koenig, MD, Patricia Smith, RN, Ziyad M Hijazi, MD, Emile A Bacha, MD 
The Annals of Thoracic Surgery 
Volume 75, Issue 6, Pages (June 2003)
DOI: /S (03)

2. Fig 1
Change in QRS duration with multisite pacing for 29 patients. The QRS duration in the baseline state is shown in the left-hand column; the QRS duration during pacing is shown in the right-hand column. The dark line represents the mean change and the bars represent the standard deviations (106.5 ± 22 msec versus 80 ± 18 msec).
The Annals of Thoracic Surgery  , DOI: ( /S (03) )

3. Fig 2
Baseline (top) and paced (bottom) rhythm strips (lead II, 50 mm/s) of a patient with tetralogy of Fallot and right bundle branch block. Baseline QRS duration is 120 msec and paced QRS duration is 80 msec. (N = normal beat.)
The Annals of Thoracic Surgery  , DOI: ( /S (03) )

4. Fig 3
Change in systolic blood pressure (BP) with multisite pacing. For 29 patients, systolic BP in the baseline state is shown in the left-hand column; the systolic BP during pacing is shown in the right-hand column. The dark line represents the mean change and the bars represent the standard deviations (89 ± 22 mm Hg versus 98 ± 21 mm Hg).
The Annals of Thoracic Surgery  , DOI: ( /S (03) )

5. Fig 4
Paced (left) and baseline (right) rhythm strip (lead II, 25 mm/s) and arterial blood pressure (ABP) recordings in patient no. 9 with hypoplastic left-side heart syndrome after stage 1 Norwood operation. The paced ABP is 67/46 mm Hg and decreases to 52/37 mm Hg in the baseline state. (N = normal beat; M = mixed beat; V= ventricular.)
The Annals of Thoracic Surgery  , DOI: ( /S (03) )

6. Fig 5
Change in cardiac index with multisite pacing. For 22 patients, cardiac index in the baseline state is shown in the left-hand column; cardiac index during pacing is shown in the right-hand column. The dark line represents the mean change and the bars represent the standard deviations (3.5 ± 1.3 [L · min−1 · m−2] versus 4.1 ± 1.6 [L · min−1 · m−2].)
The Annals of Thoracic Surgery  , DOI: ( /S (03) )