Abstract:
OBJECTIVES:The present study was designed to evaluate the effects of the nitric oxide synthesis inhibitor NG-nitro-L-arginine methyl ester (L-NAME) on right ventricular (RV) contractility, both pulsatile and nonpulsatile contributions to afterload, and relate any changes to alterations in performance of the RV as a pump. DESIGN:Prospective drug response. SETTING:University animal laboratory. PARTICIPANTS:Swine. INTERVENTIONS:Six pigs anesthetized with thiopental and fentanyl were instrumented for measurement of RV pressure and pulmonary arterial (PA) pressure, internal diameter, and blood flow. Total RV afterload was calculated as effective PA elastance, with the steady-state component expressed as total arterial resistance, and the pulsatile component assessed by calculation of characteristic impedance and global compliance. The ratio of peak PA flow to RV end-diastolic pressure (RVEDP) was recorded as an index of RV pump function, and the peak ejection rate-of-change of RV power (dPower/dt) was calculated as an index of contractility. In each animal, measurements were obtained before (baseline) and 15 minutes after intravenous injection of 33 mg/kg of L-NAME. MEASUREMENTS AND MAIN RESULTS:Mean PA pressure increased from 14 +/- 3 mmHg at baseline to 23 +/- 6 mmHg after L-NAME, whereas cardiac output, stroke volume, and peak PA flow/RVEDP demonstrated declines and dPower/dt was unchanged. Simultaneously, effective PA elastance increased more than twofold. This increase in total RV afterload was primarily the result of a marked elevation in total arterial resistance (+156%), whereas vascular compliance was reduced by only 30% and characteristic impedance unchanged. CONCLUSIONS:These data indicate that L-NAME produces constriction of resistance vessels within the lung, leading to increased steady-state RV afterload, but had little direct effect on large pulmonary vessels and pulsatile RV load. RV pump performance declines after L-NAME, but contractility is preserved, indicating that the change in systolic performance results primarily from the increase in steady-state afterload.
journal_name
J Cardiothorac Vasc Anesthjournal_title
Journal of cardiothoracic and vascular anesthesiaauthors
Heerdt PM,Pleimann BEdoi
10.1016/s1053-0770(96)80055-3subject
Has Abstractpub_date
1996-12-01 00:00:00pages
909-14issue
7eissn
1053-0770issn
1532-8422pii
S1053-0770(96)80055-3journal_volume
10pub_type
杂志文章abstract:OBJECTIVE:To assess the accuracy of respiratory-induced systolic pressure variation and its components to detect low left ventricular preload. DESIGN:Prospective study. SETTING:University hospital. PARTICIPANTS:Sixty-seven patients undergoing major surgery under general anesthesia. INTERVENTIONS:Transesophageal ech...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1053/jcan.2003.45
更新日期:2003-04-01 00:00:00
abstract:OBJECTIVE:Because of the lack of data regarding the impact of obesity on propofol pharmacokinetics in patients undergoing cardiac surgery using hypothermic cardiopulmonary bypass (CPB), the authors sought to explore propofol pharmacokinetics and develop a predictive pharmacokinetic model that characterizes and predicts...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1053/j.jvca.2016.02.003
更新日期:2016-08-01 00:00:00
abstract:OBJECTIVE:Most-Care (powered by the pressure-recording analytic method [PRAM]; Vytech HealthTM, Padova, Italy) is a minimally invasive cardiac output monitoring. This system already has been studied and validated in cardiac surgery and in children. It already showed a correlation with thermodilution methods in hemodyna...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1053/j.jvca.2010.09.027
更新日期:2011-06-01 00:00:00
abstract::Aprotinin has been reported to reduce bleeding in cardiac surgery patients. Its mechanisms of action on coagulation have not been fully elucidated. In a prospectively randomized study of 40 patients undergoing elective aortocoronary bypass grafting, the influence of high-dose aprotinin (2 million IU of aprotinin befor...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/1053-0770(94)90164-3
更新日期:1994-10-01 00:00:00
abstract::Currently, hemostasis is one of the most widely researched topics in perioperative medicine. As investigators learn more about the complexity of coagulation, developing tests with the ability to rapidly monitor coagulation and guide targeted therapy is the key to optimizing hemostasis management. There is mounting evi...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章,评审
doi:10.1053/j.jvca.2017.05.037
更新日期:2017-10-01 00:00:00
abstract::Pulmonary edema increasingly is recognized as a perioperative complication affecting outcome. Several risk factors have been identified, including those of cardiogenic origin, such as heart failure or excessive fluid administration, and those related to increased pulmonary capillary permeability secondary to inflammat...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章,评审
doi:10.1053/j.jvca.2017.08.028
更新日期:2018-04-01 00:00:00
abstract:OBJECTIVE:Patients undergoing aortic surgery with deep hypothermic circulatory arrest (DHCA) usually are associated with a high rate of allogeneic blood transfusion, and their red blood cell (RBC) transfusion threshold is unclear and controversial. The purpose of this study was to explore whether a restrictive transfus...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1053/j.jvca.2016.03.128
更新日期:2016-10-01 00:00:00
abstract:OBJECTIVES:The aging brain shows decreased venous oxygenation predominantly in the frontal cortex, which seems sex- dependent. The authors hypothesized that age and sex would influence baseline regional cerebral oxygen saturation (rScO2) measured by the INVOS 5100. DESIGN:Subanalysis of published data. SETTING:Tertia...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1053/j.jvca.2020.06.025
更新日期:2020-12-01 00:00:00
abstract:OBJECTIVES:The objectives of this study were to evaluate the effect of ventricular morphology on perioperative outcomes during Fontan surgery. DESIGN:Retrospective cohort study. SETTING:Single standing, not-for-profit pediatric hospital. PARTICIPANTS:A total of 72 patients who underwent Fontan surgery using cardiopu...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1053/j.jvca.2016.07.024
更新日期:2017-02-01 00:00:00
abstract:OBJECTIVE:To compare the hemodynamic effects, efficacy, and safety of intravenous milrinone (M), 50 microg/kg during 10 minutes followed by 0.5 microg/kg/min, with intravenous dobutamine (D), 10 to 20 microg/kg/min, in patients with low cardiac output after cardiac surgery. DESIGN:Randomized, open-label, multicenter s...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1053/jcan.2001.23274
更新日期:2001-06-01 00:00:00
abstract::Since DeBakey's replacement of an aortic arch aneurysm using cardiopulmonary bypass and individual perfusion of the brachiocephalic and carotid arteries, selective cerebral perfusion has been used as an effective method of cerebral protection. Although interest in this technique waned with the evolution of hypothermic...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章,评审
doi:10.1016/s1053-0770(96)80181-9
更新日期:1996-01-01 00:00:00
abstract::To determine the effect of 1.5 MAC of two volatile anesthetics (halothane and isoflurane) on platelet-induced contraction of canine coronary artery, isolated, denuded coronary rings were suspended between two stirrups, placed into organ chambers filled with an oxygenated Krebs-Ringer solution, and connected to an isom...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1016/1053-0770(94)90058-2
更新日期:1994-04-01 00:00:00
abstract::Left atrial or pulmonary capillary wedge pressure V waves are used immediately after mitral valve replacement to evaluate valve competence. However, their correlation with hemodynamically significant regurgitation has not been established. Transesophageal echocardiography (TEE) was used to prospectively examine whethe...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1016/1053-0770(91)90035-r
更新日期:1992-02-01 00:00:00
abstract:OBJECTIVES:Two-dimensional speckle tracking echocardiography has advantages over tissue Doppler imaging during isovolumetric relaxation for predicting left-ventricular end-diastolic pressure in non-surgical patients. Considering the direct and indirect effects of general anesthesia on hemodynamics, we examined correlat...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1053/j.jvca.2018.06.011
更新日期:2019-04-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to evaluate the left ventricular lusitropic effects of epinephrine versus milrinone after cardiopulmonary bypass. DESIGN:Prospective randomized study. SETTING:Single institution, university teaching hospital. PARTICIPANTS:Adult patients undergoing coronary artery bypass grafti...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1053/j.jvca.2005.03.011
更新日期:2005-06-01 00:00:00
abstract:OBJECTIVE:To examine the role of the CHA2DS2-VASc (Congestive heart failure; Hypertension; Age ≥75 years [doubled]; Diabetes; previous Stroke, transient ischemic attack, or thromboembolism [doubled]; Vascular disease; Age 65-75 years; and Sex category) score as a prognostic marker of in-hospital mortality in critically...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1053/j.jvca.2019.11.044
更新日期:2020-05-01 00:00:00
abstract:OBJECTIVE:In minimally invasive surgical ablation for atrial fibrillation during video-assisted thoracoscopy surgery, one-lung ventilation (OLV) with a double- lumen tube is commonly employed. In contrast with the majority of thoracic procedures, the patient lies supine; thus, the protective effect of gravity is lost a...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1053/j.jvca.2020.03.064
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVE:The authors aimed to investigate whether immediate postoperative hypoalbuminemia could be associated with outcomes after off-pump coronary artery bypass graft (OPCAB) surgery. DESIGN:A retrospective analysis of the medical data. SETTING:Cardiac operating room and adult cardiovascular intensive care unit at ...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1053/j.jvca.2010.09.008
更新日期:2011-06-01 00:00:00
abstract:OBJECTIVES:This study's purpose was to review non-cardiac surgery (NCS) in patients with hypertrophic obstructive cardiomyopathy (HOCM) to examine perioperative management and quantify postoperative mortality and worsening heart failure. DESIGN:Retrospective review. SETTING:A single tertiary care center. PARTICIPANT...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1053/j.jvca.2015.08.017
更新日期:2016-06-01 00:00:00
abstract:OBJECTIVE:Diagnosis of perioperative myocardial infarction (P-MI) after coronary artery bypass graft (CABG) surgery traditionally relied on a combination of electrocardiographic and enzyme assay changes. Patients with Q-wave P-MIs who survive to hospital discharge have a poorer long-term prognosis. Troponin assays are ...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1053/j.jvca.2006.01.015
更新日期:2006-12-01 00:00:00
abstract:OBJECTIVE:To evaluate whether exogenous surfactant therapy may be useful in adult patients with acute lung injury or acute respiratory distress syndrome, using a meta-analysis of published clinical trials. DESIGN:A comprehensive literature search was performed to identify all randomized clinical trials examining the e...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章,meta分析
doi:10.1053/j.jvca.2011.11.006
更新日期:2012-10-01 00:00:00
abstract:OBJECTIVES:Transesophageal echocardiography (TEE) is a valuable procedure for assessing left ventricular (LV) function, but it has not been widely applied in critical care because of the limited number of intensivists who are trained in echocardiography. This prospective study was designed to evaluate the feasibility o...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1016/s1053-0770(98)90048-9
更新日期:1998-02-01 00:00:00
abstract:OBJECTIVE:To describe detailed perioperative features of combined heart and kidney transplant (HKT). DESIGN:Retrospective study. SETTING:Tertiary care university hospital. PARTICIPANTS:All consecutive HKT recipients aged 18 years and older. INTERVENTIONS:None. MEASUREMENTS AND MAIN RESULTS:After approval of the In...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1053/j.jvca.2017.09.018
更新日期:2018-02-01 00:00:00
abstract:OBJECTIVE:To investigate the prognostic impact of red blood cell (RBC) transfusion on the outcome after transfemoral transcatheter aortic valve replacement (TAVR). DESIGN:Nationwide, retrospective multicenter study. SETTING:Five University Hospitals. PARTICIPANTS:The nationwide FinnValve registry included data from ...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章,多中心研究
doi:10.1053/j.jvca.2019.06.038
更新日期:2019-11-01 00:00:00
abstract:OBJECTIVES:Intraoperative management directed to early extubation of children undergoing cardiac surgery has been suggested as a viable alternative to prolonged postoperative mechanical ventilation. The authors evaluated the safety and efficacy of this approach in a randomized prospective trial. DESIGN:A prospective r...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1053/j.jvca.2008.11.011
更新日期:2009-06-01 00:00:00
abstract:OBJECTIVE:Investigate how a multitude of patient demographics and extracorporeal membranous oxygenation (ECMO)-related complications affect 30-day survival or survival to discharge. DESIGN:Retrospective observational study. SETTING:Urban university hospital, quaternary care center. PARTICIPANTS:Patients who underwen...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1053/j.jvca.2018.08.193
更新日期:2019-04-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to investigate whether isoflurane, a known negative lusitropic agent, exacerbates diastolic dysfunction in patients with preexisting impaired relaxation. DESIGN:Prospective, experimental study. SETTING:Single-institution, university hospital. PARTICIPANTS:Twenty-five patients ...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1053/j.jvca.2006.01.018
更新日期:2006-08-01 00:00:00
abstract::Near-infrared spectroscopy (NIRS) is an emerging noninvasive monitoring modality based on chromophore absorption of infrared light. Because NIRS provides instantaneous information on cerebral and somatic tissue oxygenation, it becomes mandatory to identify rapidly the etiology of impaired regional oxygenation and thus...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章,评审
doi:10.1053/j.jvca.2019.03.039
更新日期:2019-08-01 00:00:00
abstract:OBJECTIVE:Right-sided heart failure develops in lung transplantation candidates on prolonged peripheral extracorporeal membrane oxygenation support and is a major determinant of mortality. The use of central venoarterial extracorporeal membrane oxygenation for bridging of right-sided heart failure to lung transplantati...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章,评审
doi:10.1053/j.jvca.2019.01.059
更新日期:2019-07-01 00:00:00
abstract::The presence of an inotropic action of prostaglandin E1 (PGE1) in vivo is controversial, and there are conflicting results obtained by various indices of myocardial contractility. In this study, a direct effect of PGE1 on contractility was investigated in dogs by use of a load-independent contractile index: left ventr...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1016/1053-0770(92)90102-d
更新日期:1992-10-01 00:00:00