Abstract
Background: Although several vasodilators are used to control vascular resistance during cardiac surgery, their effects on splanchnic circulation during extracorporeal circulation are unknown. We designed the present noninvasive study to evaluate the effect of prostaglandin E1 and nitroglycerin on portal venous flow during extracorporeal circulation using transesophageal echography. Methods: We included 26 patients undergoing cardiac surgery with moderate hypothermic extracorporeal circulation in this study. After obtaining hemodynamic stability under extracorporeal circulation, we measured portal venous diameter, mean flow velocity and the velocity time integral using transesophageal echography and calculated portal venous flow. The patients were assigned to two groups where either prostaglandin E1 (N=13) or nitroglycerin (N=13) was administered intravenously to maintain perfusion pressure at the level of 70 mmHg. We measured the same parameters 20 and 40 min following administration of the drug. Results: Visualization of the portal vein was obtained by transesophageal echography in anesthetized patients. Calculated portal venous flow significantly increased in the prostaglandin E1 group, while it did not alter in the nitroglycerin group. Conclusion: The present results indicate that transesophageal echography may be a feasible toot to assess portal venous flow, and that prostaglandin E1 may improve the blood distribution to the splanchnic area and the liver during hypothermic extracorporeal circulation.
| Original language | English |
|---|---|
| Pages (from-to) | 520-525 |
| Number of pages | 6 |
| Journal | Acta Anaesthesiologica Scandinavica |
| Volume | 43 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1999 |
| Externally published | Yes |
Fingerprint
Keywords
- Cardiac surgery
- Extracorporeal circulation
- Nitroglycerin
- Portal vein
- Prostaglandin E1
- Transesophageal echography
ASJC Scopus subject areas
- Anesthesiology and Pain Medicine
Cite this
Effect of prostaglandin E1 and nitroglycerin on portal venous flow during hypothermic extracorporeal circulation : Assessment by transesophageal echography. / Iribe, Gentaro; Ohnishi, Y.; Hayashi, Y.; Kuro, M.
In: Acta Anaesthesiologica Scandinavica, Vol. 43, No. 5, 1999, p. 520-525.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of prostaglandin E1 and nitroglycerin on portal venous flow during hypothermic extracorporeal circulation
T2 - Assessment by transesophageal echography
AU - Iribe, Gentaro
AU - Ohnishi, Y.
AU - Hayashi, Y.
AU - Kuro, M.
PY - 1999
Y1 - 1999
N2 - Background: Although several vasodilators are used to control vascular resistance during cardiac surgery, their effects on splanchnic circulation during extracorporeal circulation are unknown. We designed the present noninvasive study to evaluate the effect of prostaglandin E1 and nitroglycerin on portal venous flow during extracorporeal circulation using transesophageal echography. Methods: We included 26 patients undergoing cardiac surgery with moderate hypothermic extracorporeal circulation in this study. After obtaining hemodynamic stability under extracorporeal circulation, we measured portal venous diameter, mean flow velocity and the velocity time integral using transesophageal echography and calculated portal venous flow. The patients were assigned to two groups where either prostaglandin E1 (N=13) or nitroglycerin (N=13) was administered intravenously to maintain perfusion pressure at the level of 70 mmHg. We measured the same parameters 20 and 40 min following administration of the drug. Results: Visualization of the portal vein was obtained by transesophageal echography in anesthetized patients. Calculated portal venous flow significantly increased in the prostaglandin E1 group, while it did not alter in the nitroglycerin group. Conclusion: The present results indicate that transesophageal echography may be a feasible toot to assess portal venous flow, and that prostaglandin E1 may improve the blood distribution to the splanchnic area and the liver during hypothermic extracorporeal circulation.
AB - Background: Although several vasodilators are used to control vascular resistance during cardiac surgery, their effects on splanchnic circulation during extracorporeal circulation are unknown. We designed the present noninvasive study to evaluate the effect of prostaglandin E1 and nitroglycerin on portal venous flow during extracorporeal circulation using transesophageal echography. Methods: We included 26 patients undergoing cardiac surgery with moderate hypothermic extracorporeal circulation in this study. After obtaining hemodynamic stability under extracorporeal circulation, we measured portal venous diameter, mean flow velocity and the velocity time integral using transesophageal echography and calculated portal venous flow. The patients were assigned to two groups where either prostaglandin E1 (N=13) or nitroglycerin (N=13) was administered intravenously to maintain perfusion pressure at the level of 70 mmHg. We measured the same parameters 20 and 40 min following administration of the drug. Results: Visualization of the portal vein was obtained by transesophageal echography in anesthetized patients. Calculated portal venous flow significantly increased in the prostaglandin E1 group, while it did not alter in the nitroglycerin group. Conclusion: The present results indicate that transesophageal echography may be a feasible toot to assess portal venous flow, and that prostaglandin E1 may improve the blood distribution to the splanchnic area and the liver during hypothermic extracorporeal circulation.
KW - Cardiac surgery
KW - Extracorporeal circulation
KW - Nitroglycerin
KW - Portal vein
KW - Prostaglandin E1
KW - Transesophageal echography
UR - http://www.scopus.com/inward/record.url?scp=0032924551&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032924551&partnerID=8YFLogxK
U2 - 10.1034/j.1399-6576.1999.430506.x
DO - 10.1034/j.1399-6576.1999.430506.x
M3 - Article
C2 - 10341999
AN - SCOPUS:0032924551
VL - 43
SP - 520
EP - 525
JO - Acta Anaesthesiologica Scandinavica
JF - Acta Anaesthesiologica Scandinavica
SN - 0001-5172
IS - 5
ER -