PMID- 18598323 OWN - NLM STAT- MEDLINE DCOM- 20081016 LR - 20151119 IS - 0886-0440 (Print) IS - 0886-0440 (Linking) VI - 23 IP - 4 DP - 2008 Jul-Aug TI - Plasma nitrate/nitrite (NOx) is not a useful biomarker to predict inherent cardiopulmonary bypass inflammatory response. PG - 336-8 LID - 10.1111/j.1540-8191.2008.00649.x [doi] AB - BACKGROUND AND AIM: There were strong evidences that nitric oxide has capital importance in the progressive vasodilatation associated with varied circulatory shock forms, including systemic inflammatory response syndrome (SIRS), in patients undergoing cardiac surgeries for cardiopulmonary bypass (CPB). If CPB procedures, per se, are the inciting stimulus for inflammation, plasma nitrate/nitrite (NOx) excretion would be expected to be higher in these patients rather than in patients operated without CPB. In consequence, we hypothesized that increased levels of NOx would be predictive for vasoplegic syndrome. METHODS: Thirty patients were assigned to three groups: Group 1--coronary artery bypass graft (CABG) roller pump CPB; Group 2--CABG centrifugal vortex pump CPB; and Group 3--heart valve surgery roller pump CPB. Sampling of venous blood for chemiluminescence plasma NOx dosage was achieved at the following time points: (1) before anesthesia induction; (2) after anesthesia induction; (3) before heparin infusion; (4) after heparin infusion; (5) CPB-30 minutes; (6) CPB-60 minutes; (7) before protamine infusion; (8) after protamine infusion; and (9) on return to the recovery area. RESULTS: There were no intergroup differences regarding age and anesthetic regimen, and the number of arteries grafted was not different between the CABG groups. There were no NOx statistic differences, neither among the three groups of patients or among the surgery time. In addition, there was no correlation among NOx, lactate, and hemoglobin. CONCLUSIONS: Considering the inflammatory process intrinsic to CPB, this study reinforces the idea that plasma NOx is not useful as a biomarker of inflammatory response onset, which may or may not lead to SIRS and/or vasoplegic syndrome. FAU - Viaro, Fernanda AU - Viaro F AD - Division of Thoracic and Cardiovascular Surgery, Department of Surgery and Anatomy, Ribeirao Preto Faculty of Medicine,University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil. FAU - Baldo, Caroline Floreoto AU - Baldo CF FAU - Capellini, Verena Kise AU - Capellini VK FAU - Celotto, Andrea Carla AU - Celotto AC FAU - Bassetto, Solange AU - Bassetto S FAU - Rodrigues, Alfredo Jose AU - Rodrigues AJ FAU - Evora, Paulo Roberto Barbosa AU - Evora PR LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - J Card Surg JT - Journal of cardiac surgery JID - 8908809 RN - 0 (Anticoagulants) RN - 0 (Biomarkers) RN - 0 (Hemoglobins) RN - 0 (Heparin Antagonists) RN - 0 (Nitrates) RN - 0 (Nitrites) RN - 0 (Protamines) RN - 33X04XA5AT (Lactic Acid) RN - 9005-49-6 (Heparin) SB - IM CIN - J Card Surg. 2009 May-Jun;24(3):357. doi: 10.1111/j.1540-8191.2009.00866.x. PMID: 19438801 MH - Anesthesia, Inhalation MH - Anticoagulants/administration & dosage MH - Biomarkers/blood MH - Cardiopulmonary Bypass/*adverse effects/instrumentation MH - Coronary Artery Bypass MH - Heart Valves/surgery MH - Hemoglobins/analysis MH - Heparin/administration & dosage MH - Heparin Antagonists/administration & dosage MH - Humans MH - Lactic Acid/blood MH - Luminescent Measurements MH - Nitrates/*blood MH - Nitrites/*blood MH - Protamines/administration & dosage MH - Systemic Inflammatory Response Syndrome/*diagnosis/etiology EDAT- 2008/07/05 09:00 MHDA- 2008/10/17 09:00 CRDT- 2008/07/05 09:00 PHST- 2008/07/05 09:00 [pubmed] PHST- 2008/10/17 09:00 [medline] PHST- 2008/07/05 09:00 [entrez] AID - JCS649 [pii] AID - 10.1111/j.1540-8191.2008.00649.x [doi] PST - ppublish SO - J Card Surg. 2008 Jul-Aug;23(4):336-8. doi: 10.1111/j.1540-8191.2008.00649.x.