Indocyanine green (TCG) clearance as a monitor to evaluate right heart function
Utoh, J.; Kunitomo, R.; Sakaguchi, H.; Hagiwara, S.; Uemura, S.; Uemura, K.; Muranaka, T.; Nishimura, K.; Kitamura, N.
Kyobu Geka. Japanese Journal of Thoracic Surgery 53(3): 212-214
2000
ISSN/ISBN: 0021-5252 PMID: 10714109 Document Number: 525848
Systemic venous return to the heart is disturbed as a result of right heart failure. ICG clearance is known to be influenced by hepatic venous return to the right atrium. Under a hypothesis that right heart function could be evaluated by ICG clearance test, patients with mitral valve disease (Group M, n = 29), aortic valve disease (Group A, n = 16), ischemic heart disease (Group CABG, n = 19) were studied. Preoperative K-ICG (normal range > 0.17) in the Group M was significantly lower than those in the Group A and Group CABG (0.097 +/- 0.037 vs 0.166 +/- 0.032 and 0.171 +/- 0.027, p < 0.05). In the Group M, patients who underwent tricuspid annuloplasty (TAP) had significantly lower K-ICG than the others (0.077 +/- 0.026 vs 0.113 +/- 0.038, p < 0.05). Postoperatively, K-ICG of TAP patients significantly increased (0.092 +/- 0.031, p < 0.05) when compared to their preoperative value. ICG clearance test was useful to quantify the right heart function, especially in the postoperative evaluation.