PMID- 19520657 OWN - NLM STAT- MEDLINE DCOM- 20090929 LR - 20181201 IS - 1308-0032 (Electronic) IS - 1302-8723 (Linking) VI - 9 IP - 3 DP - 2009 Jun TI - Timing of levosimendan in cardiac surgery. PG - 223-30 AB - OBJECTIVE: Levosimendan (LS) is a new inodilator agent that improves cardiac contractility by increasing the sensitivity of troponin C to calcium, which usage in cardiac surgery has been growing in the recent years. We aimed to determine the best timing of the administration of LS in high-risk patients who underwent cardiovascular surgery. METHODS: Fifteen patients were evaluated retrospectively who have left ventricular dysfunction, underwent open-heart surgery and were applied LS in different phases of operation. Patients were divided into 3 groups according to timing of LS. Levosimendan infusion (0. 1 microg-1kg-1min) was applied after the induction of anaesthesia (n=5) (Group 1), during the pump removal period (n=5) (Group 2) and in postoperative period (n=5) (Group 3). Demographic data, operative characteristics, mean arterial pressure (MAP), mean pulmonary arterial pressure (MPAP), pulmonary wedge capillary pressure (PWCP), cardiac index (CI), inotropic agent consumption, postoperative urine output, lactate levels of groups were compared between before and after LS treatment. Data were evaluated by Fisher exact, Kruskal-Wallis, Mann-Whitney U and Wilcoxon rank tests. RESULTS: In all patients, urine output was satisfactory 24 hours after LS application. There was a significant increase in CI of all 3 groups (p=0.04). Also, there was a significant decrease in PCWP of all 3 groups before and after LS (p=0.04). There was a significant decrease in MPAP in Group 2 and 3 (p=0.04). Twenty- four hours after LS application, whereas all inotropic agents could be stopped in Group 1 and 2, in Group 3 inotropic infusion (dopamine [10 microg-1kg-1min (5-17.5)], dobutamine [15 microg-1kg-1min (5-20)] and adrenaline [0.4 microg-1kg-1min (0.15-0.65)]) couldn't be stopped (p=0.007). During postoperative period, in Groups 1 and 2 one case from each required intraaortic balloon pump, while in Group 3 four patients were applied intraaortic balloon pump (p=0.08). CONCLUSION: According to our experience, LS is effective in high-risk cases during cardiac surgery, especially during the intra-operative and pump removal periods;however, no successful outcomes were observed during the post-operative period. As a result, case selection and timing should be performed well when using LS. FAU - Aksun, Murat AU - Aksun M AD - From II. Clinic of Anesthesiology and Reanimation, Izmir Ataturk Training and Research Hospital, Izmir, Turkey. murataksun@yahoo.com FAU - Karahan, Nagihan AU - Karahan N FAU - Adanir, Tayfun AU - Adanir T FAU - Aran, Gulcin AU - Aran G FAU - Yetkin, Ufuk AU - Yetkin U FAU - Ozturk, Tulin AU - Ozturk T FAU - Sencan, Atilla AU - Sencan A FAU - Ozgurbuz, Ugur AU - Ozgurbuz U FAU - Gurbuz, Ali AU - Gurbuz A LA - eng PT - Journal Article PL - Turkey TA - Anadolu Kardiyol Derg JT - Anadolu kardiyoloji dergisi : AKD = the Anatolian journal of cardiology JID - 101095069 RN - 0 (Cardiotonic Agents) RN - 0 (Hydrazones) RN - 0 (Pyridazines) RN - 349552KRHK (Simendan) SB - IM MH - Aged MH - Cardiac Output, Low/*drug therapy MH - Cardiotonic Agents/*administration & dosage MH - Drug Administration Schedule MH - Female MH - Hemodynamics/drug effects MH - Humans MH - Hydrazones/*administration & dosage MH - Intraoperative Care MH - Male MH - Middle Aged MH - Myocardial Contraction/drug effects MH - Patient Selection MH - Postoperative Care MH - Pyridazines/*administration & dosage MH - Retrospective Studies MH - Simendan MH - Time Factors MH - Ventricular Dysfunction, Left/*surgery EDAT- 2009/06/13 09:00 MHDA- 2009/09/30 06:00 CRDT- 2009/06/13 09:00 PHST- 2009/06/13 09:00 [entrez] PHST- 2009/06/13 09:00 [pubmed] PHST- 2009/09/30 06:00 [medline] PST - ppublish SO - Anadolu Kardiyol Derg. 2009 Jun;9(3):223-30.