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Cardiopulmonary exercise testing. (CPET)

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https://www.readbyqxmd.com/read/28798697/cardiac-autonomic-modulation-and-the-kinetics-of-heart-rate-responses-in-the-on-and-off-transient-during-exercise-in-women-with-metabolic-syndrome
#1
Lucas R B E Silva, Antonio R Zamunér, Paulo Gentil, Fagner M Alves, Acácia G F Leal, Viviane Soares, Maria S Silva, Marcus F Vieira, Karina Simões, Gustavo R Pedrino, Ana C S Rebelo
Objective: To test whether women with metabolic syndrome (MS) have impairments in the on- and off-transients during an incremental test and to study whether any of the MS components are independently associated with the observed responses. Research Design and Methods: Thirty-six women aged 35-55 years were divided into a group with MS (MSG, n = 19) and a control group (CG, n = 17). R-R intervals (RRi) and heart rate variability (HRV) were calculated on a beat-to-beat basis and the heart rate (HR) at the on- and off-transient were analyzed during an incremental cardiopulmonary exercise test (CPET)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28791498/patient-reported-dyspnea-correlates-poorly-with-aerobic-exercise-capacity-measured-during-cardiopulmonary-exercise-testing
#2
Dany Gaspard, Jonathan Kass, Stephen Akers, Krystal Hunter, Melvin Pratter
BACKGROUND: Patient-reported dyspnea plays a central role in assessing cardiopulmonary disease. There is little evidence, however, that dyspnea correlates with objective exercise capacity measurements. If the correlation is poor, dyspnea as a proxy for objective assessment may be misleading. OBJECTIVE: To compare patient's perception of dyspnea with maximum oxygen uptake (MaxVO2) during cardiopulmonary exercise testing (CPET). METHODS: Fifty patients undergoing CPET for dyspnea evaluation were studied prospectively...
August 8, 2017: Lung
https://www.readbyqxmd.com/read/28776135/importance-of-non-invasive-right-and-left-ventricular%C3%A2-variables-on-exercise-capacity-in-patients-with-tetralogy-of-fallot-hemodynamics
#3
Christian Meierhofer, Timon Tavakkoli, Andreas Kühn, Kurt Ulm, Alfred Hager, Jan Müller, Stefan Martinoff, Peter Ewert, Heiko Stern
Good quality of life correlates with a good exercise capacity in daily life in patients with tetralogy of Fallot (ToF). Patients after correction of ToF usually develop residual defects such as pulmonary regurgitation or stenosis of variable severity. However, the importance of different hemodynamic parameters and their impact on exercise capacity is unclear. We investigated several hemodynamic parameters measured by cardiovascular magnetic resonance (CMR) and echocardiography and evaluated which parameter has the most pronounced effect on maximal exercise capacity determined by cardiopulmonary exercise testing (CPET)...
August 3, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28765494/effects-of-expiratory-positive-airway-pressure-on-exercise-tolerance-dynamic-hyperinflation-and-dyspnea-in-copd
#4
Ricardo Gass, Pietro Merola, Mariane B Monteiro, Dannuey M Cardoso, Dulciane N Paiva, Paulo Jz Teixeira, Marli M Knorst, Danilo C Berton
INTRODUCTION: The application of expiratory positive airway pressure (EPAP) in patients with COPD during exercise may reduce dynamic hyperinflation, while, on the other hand, it can increase the resistive work of breathing. Therefore, we evaluated the effects of 2 intensities of EPAP during exercise on tolerance, dynamic hyperinflation, and dyspnea in subjects with moderate to very severe COPD. METHODS: We performed a cross-sectional, experimental, 4-visit study...
August 1, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28758084/cardiopulmonary-exercise-test-in-leukemia-patients-after-chemotherapy-a-feasibility-study
#5
Soojae Kim, Ik-Chan Song, Sungju Jee
OBJECTIVE: To explore the feasibility of cardiopulmonary exercise test (CPET) in leukemia patients after chemotherapy. METHODS: Leukemia patients with histologically confirmed hematologic malignancies were reviewed. We evaluated for CPET, between receiving chemotherapy and undergoing stem cell transplantation after 2 weeks. We recorded exercise testing and physiologic parameters during CPET between January 2013 to May 2015. All patients were subjected to symptoms limited to exercise testing, according to the Modified Bruce Protocol...
June 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28737279/exercise-capacity-is-not-decreased-in-children-who-have-undergone-lung-resection-early-in-life-for-congenital-thoracic-malformations-compared-to-healthy-age-matched-children
#6
Ashlee Dunn, Kasey Pearce, Robin Callister, Adam Collison, Matthew Morten, Payal Mandaliya, Lauren Platt, Ben Dascombe, Rajendra Kumar, Hiran Selvadurai, Paul D Robinson, Joerg Mattes
PURPOSE: The purpose of this study was to compare (i) the exercise capacity and (ii) lung function prior to and immediately post cardiopulmonary exercise tests (CPET) of children who underwent early life lung resection for Congenital Pulmonary Airway Malformations (CPAM) to healthy control children. METHOD: Eight children with CPAM (four males, age 9.6 ± 1.8 years) and eight control children without respiratory disease (three males, age 9.4 ± 1.4 years) performed a CPET on a cycle ergometer, during which maximal oxygen consumption (V̇O2max ) and heart rate were measured...
July 24, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28713463/cardiopulmonary-performance-during-maximal-exercise-in-soccer-players-with-alterations-in-renal-function
#7
Anderson Pontes Morales, Felipe Sampaio-Jorge, Luiz Felipe da Cruz Rangel, Jackson de Souza Menezes, Tiago Costa Leite, Beatriz Gonçalves Ribeiro
The aim of this study was to evaluate the curves of cardiorespiratory variables during cardiopulmonary exercise testing (CPET) in soccer players who had acute alterations in the glomerular filtration rate (GFR) after performing the pre-season training protocol. Sixteen male professional soccer players (25 ± 3 years; 179 ± 2 cm; and 77 ± 6 kg) were evaluated for oxygen uptake (VO2), heart rate (HR) and pulse relative oxygen (relative O2 Pulse) curves with intervals corresponding to 10% of the total duration of CPET...
June 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28707733/a-new-equation%C3%A2-to-predict-peak-vo2-in-obese-patients-during-cardiopulmonary-exercise-testing
#8
Alan Carlos Brisola Barbosa, Evandro Fornias Sperandio, Bárbara de Barros Gonze, Giovanna Domingues Spina, Rodolfo Leite Arantes, Antônio Ricardo de Toledo Gagliardi, Marcello Romiti, Victor Zuniga Dourado
We aimed to develop an equation to predict peak VO2 in obese subjects undergoing CPET. In addition, we evaluated and compared three published equations. We randomized 346 obese subjects undergoing CPET into a group for developing the equation (n = 272) and a group for cross-validation (n = 74), compared through the Bland and Altman method. Height, sex and age were responsible for 85·5% of total variability of the peak VO2. Additional 1% and 0·7% of the variability were, respectively, explained by physical inactivity and diabetes...
July 14, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28705379/prognostic-usefulness-of-cardiopulmonary-exercise-testing-for-managing-patients-with-severe-aortic-stenosis
#9
Van D Le, Gunnar V Jensen, Lars Kjøller-Hansen
The approach to managing asymptomatic or questionably symptomatic patients for aortic stenosis is difficult. We aimed to determine whether cardiopulmonary exercise testing (CPET) is prognostically useful in such patients. Patients judged asymptomatic or questionably symptomatic for aortic stenosis with aortic valve area index <0.6 cm(2)/m(2) and left ventricular ejection fraction ≥0.50 were managed conservatively provided they had either (group 1) normal peak oxygen consumption and peak oxygen pulse (>83% and >95% of the predicted values, respectively) or (group 2) subnormal peak oxygen consumption or peak oxygen pulse but with CPET data pointing to pathologies other than hemodynamic compromise from aortic stenosis...
June 15, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28689985/oxygen-consumption-and-carbon-dioxide-recovery-kinetics-in-the-prediction-of-coronary-artery-disease-severity-and-outcome
#10
Dejana Popovic, Dejana Martic, Tea Djordjevic, Vesna Pesic, Marco Guazzi, Jonathan Myers, Reza Mohebi, Ross Arena
BACKGROUND: Revascularization appears to be beneficial only in patients with high levels of ischemia. This study examined the utility of gas analysis during the recovery phase of cardiopulmonary exercise testing (CPET) in predicting coronary artery disease (CAD) severity and prognosis. METHODS: 40 Caucasian patients (21.2% females), mean age 63.5±7.6 with significant coronary artery lesions (≥50%) were studied. Within two months of coronary angiography, CPET on a treadmill (TM) and recumbent ergometer (RE) were performed on two visits 2-4days apart; subjects were subsequently followed 32±10months...
June 28, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28671932/associations-of-exercise-tolerance-with-hemodynamic-parameters-for-pulmonary-arterial-hypertension-and-for-chronic-thromboembolic-pulmonary-hypertension
#11
Yasunori Tsuboi, Hidekazu Tanaka, Ryo Nishio, Takuma Sawa, Daisuke Terashita, Kazuhiko Nakayama, Seimi Satomi-Kobayashi, Yoshitada Sakai, Noriaki Emoto, Ken-Ichi Hirata
PURPOSE: Pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH) are the main subgroups of pulmonary hypertension (PH). Despite differences in their etiologies, both diseases are characterized by vascular remodeling, resulting in progressive right heart failure. Noninvasive periodic evaluation of exercise tolerance has become increasingly important. Cardiopulmonary exercise testing (CPET) and a 6-minute walk test (6MWT) are now both recommended for evaluating exercise tolerance, but there is insufficient knowledge about possible differences in the associations of exercise tolerance with right heart catheterization (RHC) data for patients with PAH and CTEPH...
June 30, 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/28666570/dead-space-ventilation-is-linked-to-exercise-capacity-and-survival-in-distal-chronic-thromboembolic-pulmonary-hypertension
#12
Laurent Godinas, Caroline Sattler, Edmund M Lau, Xavier Jaïs, Yu Taniguchi, Mitja Jevnikar, Jason Weatherald, Olivier Sitbon, Laurent Savale, David Montani, Gérald Simonneau, Marc Humbert, Pierantonio Laveneziana, Gilles Garcia
BACKGROUND: Cardiopulmonary exercise testing (CPET) is frequently used for the evaluation of patients with pulmonary hypertension (PH). Non-operable distal chronic thromboembolic pulmonary hypertension (CTEPH) represents a unique subgroup of PH where microvascular disease resembling pulmonary arterial hypertension (PAH) may predominate and efficacious medical therapy is now available. However, little is known regarding the detailed CPET profile of patients with distal CTEPH, and whether ventilation and gas exchange responses are different from PAH...
May 22, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28658083/relationship-between-percentages-of-heart-rate-reserve-and-oxygen-uptake-reserve-during-cycling-and-running-a-validation-study
#13
Giovanna C Guimarães, Paulo T V Farinatti, Adrian W Midgley, Fabrício Vasconcellos, Patrícia Vigário, Felipe A Cunha
The present study investigated the relationship between percentages of heart rate reserve (%HRR) and oxygen uptake reserve (%VO2R) during a cardiopulmonary exercise test (CPET) and discrete bouts of isocaloric cycling and treadmill running. Thirty men visited the laboratory three times for anthropometrical and resting VO2 assessments, and perform cycling and running CPETs. Ten men visited the laboratory twice more to investigate the validity of the %HRR-%VO2R relationships during isocaloric bouts of cycling and running at 75% VO2R with energy expenditures of 400 kcals...
June 22, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28657929/exercise-performance-during-the-first-two-years-after-left-ventricular-assist-device-implantation
#14
Christiane Marko, Endri Xhelili, Thomas Lackner, Daniel Zimpfer, Heinrich Schima, Francesco Moscato
Exercise performance of patients with left ventricular assist devices (LVADs) improves after postimplant cardiac rehabilitation (CR). Few studies assess the effectiveness of a CR and its long-term effect of exercise performance. For this purpose, we retrospectively analyzed data from LVAD patients, who underwent a stationary CR twice after pump implantation. Data from exercise training and cardiopulmonary exercise tests (CPETs) were analyzed. Fifteen patients (age: 57 ± 10 years, male 87%) were admitted to the rehabilitation clinic twice 39 ± 18 and 547 ± 197 days after LVAD implantation...
July 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28625375/decline-in-peak-oxygen-consumption-over-time-predicts-death-or-transplantation-in-adults-with-a-fontan-circulation
#15
Jonathan W Cunningham, Ashwin S Nathan, Jonathan Rhodes, Keri Shafer, Michael J Landzberg, Alexander R Opotowsky
Peak oxygen consumption (pVO2) measured by cardiopulmonary exercise test (CPET) predicts mortality in adults with a Fontan circulation. The purpose of this study was to assess the additive prognostic value of change in pVO2 over time. METHODS: We analyzed a cohort of adults (≥18 years old) with a Fontan circulation who underwent at least 2 maximal CPETs separated by 6-30 months at Boston Children's Hospital between 2000 and 2015. Survival analysis was performed to determine whether changes in CPET variables, including pVO2 between consecutive tests, were associated with subsequent clinical events...
July 2017: American Heart Journal
https://www.readbyqxmd.com/read/28625356/prognostic-markers-of-outcome-in-patients-undergoing-infra-inguinal-revascularisation-a-prospective-observational-pilot-study
#16
M Kanakaraj, D R Yates, R J T Wilson, M L Baroni, S J Davies
OBJECTIVES: The aim was to investigate whether cardiopulmonary exercise testing (CPET) variables derived from cycle and arm ergonometry correlate, and whether CPET variables and pre-operative N-terminal pro-brain natriuretic peptide (NT-proBNP) have prognostic significance and if the combination of the two has incremental value. METHODS: A prospective observational pilot study was conducted; 70 patients who underwent infra-inguinal bypass surgery were recruited...
June 15, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28623384/the-role-of-cardiopulmonary-exercise-testing-for-decision-making-in-patients-with-repaired-tetralogy-of-fallot
#17
REVIEW
Frederic Dallaire, Rachel M Wald, Ariane Marelli
Tetralogy of Fallot is the most common form of cyanotic congenital heart disease. As a result of the surgical strategies employed at the time of initial repair, chronic pulmonary regurgitation (PR) is prevalent in this population. Despite sustained research efforts, patient selection and timing of pulmonary valve replacement (PVR) to address PR in young asymptomatic patients with repaired tetralogy of Fallot (rToF) remain a fundamental but as yet unanswered question in the field of congenital heart disease...
June 16, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28618202/effects-of-persistent-fontan-fenestration-patency-on-cardiopulmonary-exercise-testing-variables
#18
M Elisabeth Heal, Lanier B Jackson, Andrew M Atz, Ryan J Butts
Cardiopulmonary exercise testing (CPET) aids in clinical assessment of patients with Fontan circulation. Effects of persistent fenestration on CPET variables have not been clearly defined. Associations between fenestration and CPET variables at anaerobic threshold (AT) and peak exercise were explored in the Pediatric Heart Network Fontan Cross-Sectional Study cohort. Fenestration patency was associated with a greater decrease in oxygen saturation from rest to peak exercise (fenestration -4.9 ± 3.8 v. nonfenestration -3 ± 3...
June 15, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/28617869/statins-are-related-to-impaired-exercise-capacity-in-males-but-not-females
#19
Martin Bahls, Stefan Groß, Till Ittermann, Raila Busch, Sven Gläser, Ralf Ewert, Henry Völzke, Stephan B Felix, Marcus Dörr
BACKGROUND: Exercise and statins reduce cardiovascular disease (CVD). Exercise capacity may be assessed using cardiopulmonary exercise testing (CPET). Whether statin medication is associated with CPET parameters is unclear. We investigated if statins are related with exercise capacity during CPET in the general population. METHODS: Cross-sectional data of two independent cohorts of the Study of Health in Pomerania (SHIP) were merged (n = 3,500; 50% males). Oxygen consumption (VO2) at peak exercise (VO2peak) and anaerobic threshold (VO2@AT) was assessed during symptom-limited CPET...
2017: PloS One
https://www.readbyqxmd.com/read/28612902/comparison-of-prognostic-values-of-cardiopulmonary-and-heart-rate-parameters-in-exercise-testing-in-men-with-heart-failure
#20
Łukasz Czubaszewski, Anna Straburzyńska-Lupa, Jacek Migaj, Ewa Straburzyńska-Migaj
BACKGROUND: Cardiopulmonary exercise testing (CPET) is the gold standard in the evaluation of patients with chronic heart failure (CHF). However, this test is relatively expensive, assessment of its results requires experience, and in Poland it is available only in tertiary health care centers. Many heart rate (HR) parameters taken during a standard electrocardiographic (ECG) exercise test also shows prognostic values. Thus, the aim of this study is to compare prognostic values of ventilatory and HR parameters in exercise testing in CHF patients, and to find out if HR parameters can be used instead of ventilatory in the evaluation of a prognosis...
June 14, 2017: Cardiology Journal
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