2-Dimensional Strain Analysis of Regional Change in Right Ventricular Function after Treadmill Exercise

Yoon, Se-Jung; Seo, Hye–Sun; Park, Sujung; Chung, Wook‐Jin

doi:10.4250/jcu.2016.24.1.35

Cited by 3 publications

(2 citation statements)

References 25 publications

(28 reference statements)

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“…Our aim was to explore why some patients experienced dyspnea or limited exercise capacity during the CPET by combining exercise stress echocardiography, shedding light on the underlying mechanisms of the disease. During the treadmill exercise test, RV function has been reported to increase to adapt to the cardiac output requirement under usual circumstances 12 . However, our study population exhibited unique features of RV dysfunction during exercise, which is distinctive observation in this study both observationally and pathophysiologically.…”

Section: Discussionmentioning

confidence: 59%

Usefulness of cardiopulmonary exercise test combined with exercise stress echocardiography in mild chronic thromboembolic pulmonary disease

Kim,

Jeon,

Kim

et al. 2024

Echocardiography

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PurposeChronic thromboembolic pulmonary disease (CTEPD) can lead to exercise limitations even without right ventricular (RV) dysfunction or pulmonary hypertension at rest. Combining exercise stress echocardiography with cardiopulmonary exercise testing (ESE‐CPET) for RV function and pressure changes combined measuring overall function may be useful for CTEPD evaluation. This study aims to investigate CPET and ESE results to elucidate the mechanisms of exercise limitation in mild CTEPD cases.MethodsAmong our CTEPD registry, 50 patients who performed both right heart catheterization data of mild disease (less than 30 mm Hg of mean pulmonary arterial pressure (mPAP)) and ESE‐CPET were enrolled. Echocardiography and CPET‐derived parameters were compared with hemodynamic parameters measured through right heart catheterization.ResultsPeak VO2 (maximal oxygen consumption) was decreased in overall population (71.3 ± 16.3% of predictive value). Peak VO2 during exercise was negatively correlate with mPAP and pulmonary vascular resistance at rest. A substantial increase in RV systolic pressure (RVSP) was observed during exercise (RVSP: pre‐exercise 37.2 ± 11.8 mm Hg, postexercise 64.3 ± 24.9 mm Hg, p‐value < .001). Furthermore, RV function deteriorated during exercise when compared to the baseline (RV fractional area change: 31.5 ± 10.0% to 37.8 ± 7.0%, p‐value < .001; RV global longitudinal strain: −17.1 ± 4.2% to −17.7 ± 3.3%, p‐value < .001) even though basal RV function was normal. While an excessive increase in RVSP during exercise was noticed in both groups, dilated RV and RV dysfunction during exercise were demonstrated only in the impaired exercise capacity group.ConclusionCTEPD patients with mild PH or without PH exhibited limited exercise capacity alongside an excessive increase in RVSP during exercise. Importantly, RV dysfunction during exercise was significantly associated with exercise capacity. ESE‐CPET could aid in comprehending the primary cause of exercise limitation in these patients.

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Section: Discussionmentioning

confidence: 59%

Usefulness of cardiopulmonary exercise test combined with exercise stress echocardiography in mild chronic thromboembolic pulmonary disease

Kim,

Jeon,

Kim

et al. 2024

Echocardiography

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“…By averaging all segmental values, RV peak global longitudinal strain (RV GLS) was calculated using this software with two-dimensional speckle-tracking echocardiography. 10 Because the longitudinal myocardial fibre length decreased during systole, the myocardial shortening was interpreted in negative values. Consequently, the more negative RV GLS values indicate improved or better strain.…”

Section: Methodsmentioning

confidence: 99%

Right ventricular strain as predictor of pulmonary complications in patients with femur fracture

Kim

Park

Suh

et al. 2017

CVJA

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SummaryBackground:Following femur fracture, medullary fat enters the systemic circulation and altered pulmonary haemodynamics may contribute to pulmonary complications. This study evaluated the association between right ventricular (RV) function and pulmonary complications in patients with femur fracture.Methods:Patients with a femur fracture who had undergone pre-operative echocardiography that included RV peak global longitudinal strain (RV GLS) were evaluated retrospectively between March 2015 and February 2016. Pulmonary complications were defined as the development of pneumonia or pulmonary thromboembolism during the first postoperative month.Results:Among 78 patients, pulmonary complications developed in eight (10.3%). The RV GLS value of all patients was lower than the normal range. In addition, the RV GLS value of patients with pulmonary complications was significantly lower than that of patients without pulmonary complications. Multivariate regression analyses found that worse RV GLS values independently predicted pulmonary complications [odds ratio (OR) 2.09, 95% confidence interval (CI) 1.047–4.151, p = 0.037]. Receiver operating characteristic curve analysis found that a RV GLS value of –14.85% was the best cut-off value to predict pulmonary complications; sensitivity: 75.0%; specificity: 62.9%. Moreover, patients with RV GLS values > –14.85% had significantly lower pulmonary complication-free survival.Conclusions:In patients with femur fracture, RV GLS values could help predict pulmonary complications. Therefore, patients with RV GLS values > –14.85 should be monitored closely before and after surgery for femur fracture.

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Speckle Tracking of Common Carotid Artery: A New Method for the Evaluation of Mechanical Vascular Function of Atherosclerosis

Choi

2016

J Cardiovasc Ultrasound

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2-Dimensional Strain Analysis of Regional Change in Right Ventricular Function after Treadmill Exercise

Cited by 3 publications

References 25 publications

Usefulness of cardiopulmonary exercise test combined with exercise stress echocardiography in mild chronic thromboembolic pulmonary disease

Usefulness of cardiopulmonary exercise test combined with exercise stress echocardiography in mild chronic thromboembolic pulmonary disease

Right ventricular strain as predictor of pulmonary complications in patients with femur fracture

Speckle Tracking of Common Carotid Artery: A New Method for the Evaluation of Mechanical Vascular Function of Atherosclerosis

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