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ABSTRACT Introduction: Along with cardiopulmonary bypass time, aortic cross-clamping time is directly related to the risk of complications after heart surgery. The influence of the time difference between cardiopulmonary bypass and cross-clamping times (TDC-C) remains poorly understood. Objective: To assess the impact of cardiopulmonary bypass time in relation to cross-clamping time on immediate results after coronary artery bypass grafting in the Registro Paulista de Cirurgia Cardiovascular (REPLICCAR) II. Methods: Analysis of 3,090 patients included in REPLICCAR II database was performed. The Society of Thoracic Surgeons outcomes were evaluated (mortality, kidney failure, deep wound infection, reoperation, cerebrovascular accident, and prolonged ventilation time). A cutoff point was adopted, from which the increase of this difference would affect each outcome. Results: After a cutoff point determination, all patients were divided into Group 1 (cardiopulmonary bypass time < 140 min., TDC-C < 30 min.), Group 2 (cardiopulmonary bypass time < 140 min., TDC-C > 30 min.), Group 3 (cardiopulmonary bypass time > 140 min., TDC-C < 30 min.), and Group 4 (cardiopulmonary bypass time > 140 min., TDC-C > 30 min.). After univariate logistic regression, Group 2 showed significant association with reoperation (odds ratio: 1.64, 95% confidence interval: 1.01-2.66), stroke (odds ratio: 3.85, 95% confidence interval: 1.99-7.63), kidney failure (odds ratio: 1.90, 95% confidence interval: 1.32-2.74), and in-hospital mortality (odds ratio: 2.17, 95% confidence interval: 1.30-3.60). Conclusion: TDC-C serves as a predictive factor for complications following coronary artery bypass grafting. We strongly recommend that future studies incorporate this metric to improve the prediction of complications.
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Abstract Introduction: We investigated the clinical course and outcomes of patients submitted to cardiovascular surgery in Brazil and who had developed symptoms/signs of coronavirus disease 2019 (COVID-19) in the perioperative period. Methods: A retrospective multicenter study including 104 patients who were allocated in three groups according to time of positive real time reverse transcriptase-polymerase chain reaction (RT-PCR) for the SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2): group 1, patients who underwent cardiac surgery > 10 days after positive RT-PCR; group 2, patients with a positive RT-PCR within 10 days before or after surgery; group 3, patients who presented positive RT-PCR > 10 days after surgery. The primary outcome was mortality and secondary outcomes were postoperative complications, intensive care unit (ICU) length of stay, and postoperative days of hospitalization. Results: The three groups were similar with respect to age, the European System of Cardiac Operative Risk Evaluation score, and comorbidities, except hypertension. Postoperative complications and death were significantly higher in groups 2 and 3 than in group 1, and no significant difference between groups 2 and 3 was seen. Group 2 showed a high prevalence of surgery performed as an urgent procedure. Although no significant differences were observed in ICU length of stay, total postoperative hospitalization time was significantly higher in group 3 than in groups 1 and 2. Conclusion: COVID-19 affecting the postoperative period of patients who underwent cardiovascular surgery is associated with a higher rate of morbidity and mortality. Delaying procedures in RT-PCR-positive patients may help reduce risks of perioperative complications and death.
Subject(s)
Humans , COVID-19 , Brazil , Retrospective Studies , Perioperative Period , SARS-CoV-2ABSTRACT
Introdução: Apesar do excelente desenpenho e da segurança da angioplastia primária em restabelecer o fluxo sanguíneo normal (fluxo TIMI, grau 3), uma significante proporção desses pacientes com infarto agudo do miocárdio (IAM) tem prejuízo na integridade microvascular e na perfusão miocárdica. É possível que os meios de contraste utilizados durante o procedimento interferiram na perfusão miocárdica. por alterarem mecanismos celulares implicados nesse processo. Objetivo: Comparar os meios de contraste iodixanol (não-iônico isomolar) e ioxaglato (iônico de baixa osmolaridade) na perfusão miocárdica tecidual em pacientes com IAM submetidos a intervenção coronária percutânea primária (ICPP). Método: Ensaio clínico randomizado com uma população de 201 pacientes com IAM, com tempo dor-porta maior menor 12 horas, submetidos a ICPP. O desfecho primário do estudo foi a presença de no-reflow, definido como corrected TIMI frame count (CTFC) menor ou menos 40 quadros, e o desfecho secundário foi a composição de morte cardíaca, reinfarto e acidente vascular cerebral (AVC) durante a hospitalização . Resultados: CTFC menor menos após ICPP ocorreu em 22,9 por cento dos pacientes mo grupo do ioxaglato...
Background: Despite the excellent performance and safety of primary angioplasty in reestablishing normal epicardial blood flow (TIMI flow, grade 3), a significant proportion of these patients with acute myocardial infarction (AMI) have damage in the microvascular integrity and impaired myocardial perfusion. It is possible that the contrast media used during the procedure interferes in myocardial perfusion by altering cell mechanisms involved in this process. Our objective was to compare contrast media iodixanol (nonionic isosmolar) and ioxaglate (ionic, low osmolality) in myocardial tissue perfusion in patients with AMI submitted to primary percutaneous coronary intervention (primary PCI). Methods: A randomized study with a population of 201 patients with AMI with a pain-door time ≤ 12 hours submitted to primary PCI. The primary end point of the study was the presence of no-reflow defined as corrected TIMI frame count (CTFC) ≥ 40 frames and the secondary end point was the composition of cardiac death, reinfarction and stroke during hospitalization. Results: CTFC ≥ 40 frames after primary PCI occurred in 22.9% of patients in the ioxaglate group and 19.8% in the iodixanol group (p = 0.611). The secondary end point occurred in 9.5% of patients in the ioxaglate group and 9.4% in the iodixanol group (p > 0.99). Conclusion: The current study did not demonstrate significant differences in the no-reflow incidence between the contrast media ioxaglate and iodixanol in patients with AMI submitted to primary PCI. Also significant differences were not observed in the incidence of the combined clinical outcomes of death, reinfarction or stroke.
Subject(s)
Humans , Male , Aged , Angioplasty, Balloon, Coronary/methods , Angioplasty, Balloon, Coronary , Myocardial Infarction/complications , Myocardial Infarction/diagnosis , Contrast Media/administration & dosage , Stents , Myocardial Reperfusion/methods , Myocardial ReperfusionABSTRACT
Intra-aortic balloon pump is a cardiac assist device developed to help in recovery from postcardiotomy heart failure. All patients submitted to intra-aortic balloon pump were followed prospectively at the Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo-InCor over a period of 22 months. Although we did not find statistically significant evidence of correlation between mortality and patient data (Surgery done, emergency or not, redo or not, age, gender, medical problem, functional class, cardiac function, clamp, bypass, and support time and complications) the evaluation showed our patient universe in the InCor Institute.