1. Arrest Duration Influences Postcardioplegia Electrophysiologic Recovery and Reperfusion Arrhythmias 
C.Patrick Murrah, Edward R Ferguson, Russell D Spruell, William L Holman 
The Annals of Thoracic Surgery 
Volume 65, Issue 4, Pages (April 1998)
DOI: /S (98)

2. Fig. 1
The most common mechanism for postcardioplegia reperfusion ventricular fibrillation is an accelerating ventricular tachycardia that leads to continuous ventricular electrical activity. (II = limb lead II; aVL = electrocardiographic lead aVL; RAE = right atrial electrogram; RV epi, LV epi = right and left ventricular epicardial electrograms; RV endo, LV endo = right and left ventricular endocardial electrograms.)
The Annals of Thoracic Surgery  , DOI: ( /S (98) )

3. Fig. 2
In 7 of 167 episodes, postcardioplegia reperfusion ventricular fibrillation occurred without antecedent ventricular tachycardia. (See Fig. 1 for abbreviations.)
The Annals of Thoracic Surgery  , DOI: ( /S (98) )

4. Fig. 3
The concentration of potassium in coronary sinus blood was measured before, during, and after cardioplegic arrest. (K+ = potassium concentration of coronary sinus blood; sample number: 1 = before bypass; 2 = before cardioplegia infusion on bypass; 3 = 1 minute after initial cardioplegia infusion [all groups]; 4 = 1 minute after cardioplegia at 45 minutes of arrest [groups II and III only]; 5 = 1 minute after cardioplegia at 105 minutes of arrest [group III only]; 6 through 16 = 0.5, 1, 2, 3, 4, 5, 6, 8, 10, 15, and 20 minutes after start of reperfusion.)
The Annals of Thoracic Surgery  , DOI: ( /S (98) )

5. Fig. 4
The septal myocardial temperature was measured. During reperfusion the myocardial temperature increased rapidly toward normothermia (37°C). There were no statistically significant differences in temperature between groups, although the return of electrophysiologic function differed between groups according to the duration of cardioplegic arrest. (Time = seconds after initiation of postcardioplegia reperfusion.)
The Annals of Thoracic Surgery  , DOI: ( /S (98) )