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Réa ABBAC, Mihajlovic V, Vishram-Nielsen JKK, Brahmbhatt DH, Scolari FL, Wang VN, Nisar M, Fung NL, Otsuki M, Billia F, Overgaard CB, Luk A. Pulmonary Artery Catheter Usage and Impact on Mortality in Patients With Cardiogenic Shock: Results From a Canadian Single-Centre Registry. Can J Cardiol 2024; 40:664-673. [PMID: 38092192 DOI: 10.1016/j.cjca.2023.12.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND Hemodynamic assessment for cardiogenic shock (CS) phenotyping in patients has led to renewed interest in the use of pulmonary artery catheters (PACs). METHODS We included patients admitted with CS from January 2014 to December 2020 and compared clinical outcomes among patients who received PACs and those who did not. The primary outcome was the rate of in-hospital mortality. Secondary outcomes included use of advanced heart failure therapies and coronary intensive care unit (CICU) and hospital lengths of stay. RESULTS A total of 1043 patients were analysed and 47% received PACs. Patients selected for PAC-guided management were younger and had lower left ventricular function. They also had higher use of vasopressor and inotropes, and 15.2% of them were already supported with temporary mechanical circulatory support (MCS). In-hospital mortality was lower in patients who received PACs (29.3% vs 36.2%; P = 0.02), mainly driven by a reduction in mortality among those in Society for Cardiovascular Angiography and Interventions (SCAI) stages D and E CS. Patients who received PACs were more likely to receive temporary MCS with Impella, durable ventricular assist devices (VADs), or orthotopic heart transplantation (OHT) (P < 0.001 for all analyses). CICU and hospital lengths of stay were longer in patients who used PACs. CONCLUSIONS Among patients with CS, the use of PACs was associated with lower in-hospital mortality, especially among those in SCAI stages D and E. Patients who received PACs were also more frequently rescued with temporary MCS or received advanced heart failure therapies, such as durable VADs or OHT.
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Affiliation(s)
- Ana Beatriz B A C Réa
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada; Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Vesna Mihajlovic
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada; Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | | | - Darshan H Brahmbhatt
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada; Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Fernando Luis Scolari
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada; Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Vicki N Wang
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada; Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Mahrukh Nisar
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
| | - Nicole L Fung
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
| | - Madison Otsuki
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
| | - Filio Billia
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada; Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Christopher B Overgaard
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada; Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Southlake Regional Health Centre, Newmarket, Ontario, Canada
| | - Adriana Luk
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada; Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada.
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Rodenas-Alesina E, Luis Scolari F, Wang VN, Brahmbhatt DH, Mihajlovic V, Fung NL, Otsuki M, Billia F, Overgaard CB, Luk A. Improved mortality and haemodynamics with milrinone in cardiogenic shock due to acute decompensated heart failure. ESC Heart Fail 2023. [PMID: 37322827 PMCID: PMC10375068 DOI: 10.1002/ehf2.14379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 01/09/2023] [Accepted: 03/30/2023] [Indexed: 06/17/2023] Open
Abstract
AIMS Studies in cardiogenic shock (CS) often have a heterogeneous population of patients, including those with acute myocardial infarction and acute decompensated heart failure (ADHF-CS). The therapeutic profile of milrinone may benefit patients with ADHF-CS. We compared the outcomes and haemodynamic trends in ADHF-CS receiving either milrinone or dobutamine. METHODS AND RESULTS Patients presenting with ADHF-CS (from 2014 to 2020) treated with a single inodilator (milrinone or dobutamine) were included in this study. Clinical characteristics, outcomes, and haemodynamic parameters were collected. The primary endpoint was 30 day mortality, with censoring at the time of transplant or left ventricular assist device implantation. A total of 573 patients were included, of which 366 (63.9%) received milrinone and 207 (36.1%) received dobutamine. Patients receiving milrinone were younger, had better kidney function, and lower lactate at admission. In addition, patients receiving milrinone received mechanical ventilation or vasopressors less frequently, whereas a pulmonary artery catheter was more frequently used. Milrinone use was associated with a lower adjusted risk of 30 day mortality (hazard ratio = 0.52, 95% confidence interval 0.35-0.77). After propensity-matching, the use of milrinone remained associated with a lower mortality (hazard ratio = 0.51, 95% confidence interval 0.27-0.96). These findings were associated with improved pulmonary artery compliance, stroke volume, and right ventricular stroke work index. CONCLUSIONS The use of milrinone compared with dobutamine in patients with ADHF-CS is associated with lower 30 day mortality and improved haemodynamics. These findings warrant further study in future randomized controlled trials.
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Affiliation(s)
- Eduard Rodenas-Alesina
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
- Department of Medicine, Division of Cardiology, University of Toronto, Toronto, Ontario, Canada
| | - Fernando Luis Scolari
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
- Department of Medicine, Division of Cardiology, University of Toronto, Toronto, Ontario, Canada
| | - Vicki N Wang
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
- Department of Medicine, Division of Cardiology, University of Toronto, Toronto, Ontario, Canada
| | - Darshan H Brahmbhatt
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
- Department of Medicine, Division of Cardiology, University of Toronto, Toronto, Ontario, Canada
- National Heart & Lung Institute, Imperial College London, London, UK
| | - Vesna Mihajlovic
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
- Department of Medicine, Division of Cardiology, University of Toronto, Toronto, Ontario, Canada
| | - Nicole L Fung
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
| | - Madison Otsuki
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
| | - Filio Billia
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
- Department of Medicine, Division of Cardiology, University of Toronto, Toronto, Ontario, Canada
| | - Christopher B Overgaard
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
- Department of Medicine, Division of Cardiology, University of Toronto, Toronto, Ontario, Canada
- Southlake Regional Health Centre, Newmarket, Ontario, Canada
| | - Adriana Luk
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
- Department of Medicine, Division of Cardiology, University of Toronto, Toronto, Ontario, Canada
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Luk AC, Rodenas-Alesina E, Scolari FL, Wang VN, Brahmbhatt DH, Hillyer AG, Huebener N, Fung N, Otsuki M, Overgaard CB. Patient Outcomes and Characteristics in a Contemporary Quaternary Canadian Cardiac Intensive Care Unit. CJC Open 2022; 4:763-771. [PMID: 36148250 PMCID: PMC9486869 DOI: 10.1016/j.cjco.2022.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 06/13/2022] [Indexed: 11/29/2022] Open
Abstract
Background The modern-day cardiac intensive care unit (CICU) has evolved to care for patients with acute critical cardiac illness. We describe the current population of cardiac patients in a quaternary CICU. Methods Consecutive CICU patients admitted to the CICU at the Toronto General Hospital from 2014 to 2020 were studied. Patient demographics, admission diagnosis, critical care resources, complications, in-hospital mortality, and CICU and hospital length of stay were recorded. Results A total of 8865 consecutive admissions occurred, with a median age of 64.9 years. The most common primary cardiac diagnoses were acute decompensated heart failure (17.8%), non ST-elevation myocardial infarction (16.8%), ST-elevation myocardial infarction (15.5%), and arrhythmias (14.7%). Cardiogenic shock was seen in 13.2%, and out-of-hospital cardiac arrest in 4.1%. A noncardiovascular admission diagnosis accounted for 13.9% of the cases. Over the period studied, rates of admission were higher for cardiogenic shock (P < 0.001 for trend), with a higher use of critical care resources. Additionally, rates of admission were higher in female patients and those who had chronic kidney disease and diabetes. The in-hospital mortality rate of all CICU admissions was 13.2%, and it was highest in those with noncardiac conditions, compared to the rate in those with cardiac diagnoses (29.4% vs 10.6%, P < 0.001). Conclusions Given the trends of higher acuity of patients with cardiac critical illness, with higher use of critical care resources, education streams for critical care within cardiology, and alternative pathways of care for patients who have lower-acuity cardiac disease remain imperative to manage this evolving population.
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Affiliation(s)
- Adriana C. Luk
- Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
- Corresponding author: Dr Adriana C. Luk, Division of Cardiology, University Health Network, Toronto General Hospital, Toronto, Ontario 4N 478, Canada. Tel.: +1-416-340-4800; fax: +1-416-340-4134.
| | - Eduard Rodenas-Alesina
- Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
| | - Fernando L. Scolari
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
| | - Vicki N. Wang
- Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
| | - Darshan H. Brahmbhatt
- Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Alexandra G. Hillyer
- Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Nikki Huebener
- Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Nicole Fung
- Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Madison Otsuki
- Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Christopher B. Overgaard
- Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Southlake Regional Healthcare Centre, Newmarket, Ontario, Canada
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Rodenas-Alesina E, Wang VN, Brahmbhatt DH, Scolari FL, Mihajlovic V, Fung NL, Otsuki M, Billia F, Overgaard CB, Luk A. CALL-K score: predicting the need for renal replacement therapy in cardiogenic shock. Eur Heart J Acute Cardiovasc Care 2022; 11:377-385. [PMID: 35303055 DOI: 10.1093/ehjacc/zuac024] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/07/2022] [Accepted: 02/16/2022] [Indexed: 06/14/2023]
Abstract
AIMS The clinical predictors and outcomes of patients with cardiogenic shock (CS) requiring renal replacement therapy (RRT) have not been studied previously. This study assesses the impact of RRT on mortality in patients with CS and aims to identify clinical factors that contribute to the need of RRT. METHODS AND RESULTS Consecutive patients presenting with CS were included from a prospective registry of cardiac intensive care unit admissions at a single institution between 2014 and 2020. Of the 1030 patients admitted with CS, 123 (11.9%) received RRT. RRT was associated with higher 1-year mortality [adjusted hazard ratio = 1.62, 95% confidence interval (CI) 1.02-2.14], and a higher in-hospital incidence of sepsis [risk ratio = 2.76, P < 0.001], and pneumonia (risk ratio = 2.9, P = 0.001). Those who received RRT were less likely to receive guideline-directed medical treatment at time of discharge, undergo heart transplantation (2.4% vs. 11.5%, P = 0.002) or receive a durable left ventricular assist device (0.0% vs. 11.6%, P < 0.001). Five variables at admission best predicted the need for RRT (age, lactate, haemoglobin, use of pre-admission loop diuretics, and admission estimated glomerular filtration rate) and were used to generate the CALL-K 9-point risk score, with better discrimination than creatinine alone (P = 0.008). The score was internally validated (area under the curve = 0.815, 95% CI 0.739-0.835) with good calibration (Hosmer-Lemeshow P = 0.827). CONCLUSIONS RRT is associated with worse outcomes, including a lower likelihood to receive advanced heart failure therapies in patients with CS. A risk score comprising five variables routinely collected at admission can accurately estimate the risk of needing RRT.
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Affiliation(s)
- Eduard Rodenas-Alesina
- Division of Cardiology, Department of Medicine, Peter Munk Cardiac Centre, University Health Network, University of Toronto, 585 University Avenue, 4N 478, Toronto, ON M5G 2N2, Canada
- Ted Rogers Centre for Heart Research, 661 University Avenue, Toronto, ON M5G 1X8, Canada
| | - Vicki N Wang
- Division of Cardiology, Department of Medicine, Peter Munk Cardiac Centre, University Health Network, University of Toronto, 585 University Avenue, 4N 478, Toronto, ON M5G 2N2, Canada
- Ted Rogers Centre for Heart Research, 661 University Avenue, Toronto, ON M5G 1X8, Canada
| | - Darshan H Brahmbhatt
- Division of Cardiology, Department of Medicine, Peter Munk Cardiac Centre, University Health Network, University of Toronto, 585 University Avenue, 4N 478, Toronto, ON M5G 2N2, Canada
- Ted Rogers Centre for Heart Research, 661 University Avenue, Toronto, ON M5G 1X8, Canada
- National Heart & Lung Institute, Imperial College London, Royal Brompton Campus, Dovehouse Street, London, SW3 6LY, UK
| | - Fernando Luis Scolari
- Division of Cardiology, Department of Medicine, Peter Munk Cardiac Centre, University Health Network, University of Toronto, 585 University Avenue, 4N 478, Toronto, ON M5G 2N2, Canada
- Ted Rogers Centre for Heart Research, 661 University Avenue, Toronto, ON M5G 1X8, Canada
| | - Vesna Mihajlovic
- Division of Cardiology, Department of Medicine, Peter Munk Cardiac Centre, University Health Network, University of Toronto, 585 University Avenue, 4N 478, Toronto, ON M5G 2N2, Canada
- Ted Rogers Centre for Heart Research, 661 University Avenue, Toronto, ON M5G 1X8, Canada
| | - Nicole L Fung
- Division of Cardiology, Department of Medicine, Peter Munk Cardiac Centre, University Health Network, University of Toronto, 585 University Avenue, 4N 478, Toronto, ON M5G 2N2, Canada
| | - Madison Otsuki
- Division of Cardiology, Department of Medicine, Peter Munk Cardiac Centre, University Health Network, University of Toronto, 585 University Avenue, 4N 478, Toronto, ON M5G 2N2, Canada
| | - Filio Billia
- Division of Cardiology, Department of Medicine, Peter Munk Cardiac Centre, University Health Network, University of Toronto, 585 University Avenue, 4N 478, Toronto, ON M5G 2N2, Canada
- Ted Rogers Centre for Heart Research, 661 University Avenue, Toronto, ON M5G 1X8, Canada
| | - Christopher B Overgaard
- Division of Cardiology, Department of Medicine, Peter Munk Cardiac Centre, University Health Network, University of Toronto, 585 University Avenue, 4N 478, Toronto, ON M5G 2N2, Canada
- Ted Rogers Centre for Heart Research, 661 University Avenue, Toronto, ON M5G 1X8, Canada
- Southlake Regional Health Centre, 596 Davis Dr, Newmarket, ON L3Y 2P9, Canada
| | - Adriana Luk
- Division of Cardiology, Department of Medicine, Peter Munk Cardiac Centre, University Health Network, University of Toronto, 585 University Avenue, 4N 478, Toronto, ON M5G 2N2, Canada
- Ted Rogers Centre for Heart Research, 661 University Avenue, Toronto, ON M5G 1X8, Canada
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Wang VN, Fan CPS, McIntosh C. Letter by Wang et al Regarding Article, "Association Between Coffee Intake and Incident Heart Failure Risk: A Machine Learning Analysis of the FHS, the ARIC Study, and the CHS". Circ Heart Fail 2021; 14:e008611. [PMID: 34932371 DOI: 10.1161/circheartfailure.121.008611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Vicki N Wang
- Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada (V.N.W., C.M.)
| | - Chun-Po Steve Fan
- Ted Rogers Centre for Heart Research, Toronto General Hospital, Ontario, Canada (C.-P.S.F.)
| | - Chris McIntosh
- Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada (V.N.W., C.M.)
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Luk A, Wang VN, Almazroa L, Foroutan F, Huebener N, Hillyer AG, Billia F, Ross H, Overgaard CB. Management of Acute Decompensated Heart Failure in the Cardiac Intensive Care Unit: The Importance of Co-management With a Heart Failure Specialist. CJC Open 2020; 2:229-235. [PMID: 32695973 PMCID: PMC7365826 DOI: 10.1016/j.cjco.2020.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 02/28/2020] [Indexed: 11/10/2022] Open
Abstract
Background Heart failure (HF) is a common reason for admission to the cardiac intensive care unit. We sought to identify the role of an HF consultation service in improving the management of this patient population. Methods We identified all adult patients admitted to the cardiac intensive care unit (2014-2015) at the University Health Network with a diagnosis of acute decompensated HF ± cardiogenic shock (CS). Clinical characteristics and course were recorded. We calculated a propensity score–adjusted association between HF consultation and in-hospital mortality. Results A total of 285 unique patients were identified in our cohort. Of these, 82 (28.7%) died. A total of 150 patients (52.6%) were co-managed by an HF service, and 135 patients (47.3%) were not. Patients who were managed by an HF team were younger (52.5 vs 68.0 years, P < 0.0001), were more likely to be admitted with CS (61.3 vs 41.5%, P < 0.0009), and had higher rates of vasoactive medications during their admission (69.3% vs 52.6%, P < 0.005). At discharge, there were higher rates of discharge to a HF clinic (52.0% vs 27.5%, P < 0.0001) and prescription of guideline-directed medical therapy. In-hospital mortality was lower in those co-managed by a HF team (16.7% vs 42.2%, P < 0.0001). HF consultation reduced the odds of readmission by 76% (odds ratio, 0.24; 95% confidence interval, 0.13-0.47). Conclusions Patients managed by a HF team were more likely to be in CS at admission, to survive to discharge from hospital, and to be initiated on guideline-directed medical therapy with HF follow-up.
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Wang VN, Ahmed M, Ciofani A, Sasson Z, Granton JT, Mak S. The effect of endogenous estrogen on Doppler-estimated right ventricular systolic pressure during exercise. Can J Physiol Pharmacol 2012; 90:1364-71. [PMID: 22966864 DOI: 10.1139/y2012-100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We evaluated the effect of endogenous estrogen levels on exercise-related changes in right ventricular systolic pressure (RVSP) of healthy, eumenorrheic, sedentary women. Volunteers were studied at two separates phases of the menstrual cycle (LO and HI estrogen phases), exercised on a semi-supine ergometer with escalating workload and monitored continuously by 12-lead ECG and automated blood pressure cuff. At each exercise stage, Doppler echocardiography measurements were obtained and analyzed to determine RVSP. Fourteen subjects (age 24 ± 5) were studied. Exercise duration was significantly higher on the HI estrogen day, but no significant differences in hemodynamic response to exercise were found between the two study days. There were also no significant differences with respect to heart rate (HR) acceleration during early exercise, as well as resting and peak RVSP, HR, blood pressure, and rate pressure product. Doppler-estimated RVSP demonstrated a linear relationship to HR at a ratio of 1 mm Hg (1 mm Hg = 133.3224 Pa) for every 5 bpm (beats per minute) increase in HR. There were no differences in the slope of this relationship between HI and LO estrogen phases of the menstrual cycle. Our findings did not demonstrate any effect of endogenous estrogen levels on the modulation of the pulmonary vascular response to exercise in healthy women.
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Affiliation(s)
- Vicki N Wang
- Department of Medicine, Division of Cardiology and the John H. Daniels Cardiac Research Centre, Mount Sinai Hospital, University of Toronto, 600 University Avenue, Toronto, ON M5G 1X5, Canada
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Wang VN, Cruz YP. Expression pattern of E-Cad, Ocln and ZO-1 in cleavage-stage Monodelphis domestica embryos. Dev Biol 2010. [DOI: 10.1016/j.ydbio.2010.05.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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