Meyer P, Filippatos GS, Ahmed MI, et al. Effects of right ventricular ejection fraction on outcomes in chronic systolic heart failure. Circulation. 2010;121:252–8.

Article  PubMed  PubMed Central  Google Scholar 

Gulati A, Ismail TF, Jabbour A, et al. The prevalence and prognostic significance of right ventricular systolic dysfunction in nonischemic dilated cardiomyopathy. Circulation. 2013;128:1623–33.

Article  PubMed  Google Scholar 

Kitano T, Nagata Y, Nabeshima Y, et al. Prognostic value of right ventricular ejection fraction using three–dimensional echocardiography in patients with ischemic and dilated cardiomyopathy. J Echocardiogr. 2025. https://doi.org/10.1007/s12574-025-00704-z.

Article  PubMed  Google Scholar 

Mukherjee M, Rudski LG, Addetia K, et al. Guidelines for the echocardiographic assessment of the right heart in adults and special considerations in pulmonary hypertension: recommendations from the American Society of Echocardiography. J Am Soc Echocardiogr. 2025;38:141–86.

Article  PubMed  Google Scholar 

Takenaka S, Sato T, Nagai T, et al. Impact of right ventricular reserve on exercise capacity and quality of life in patients with left ventricular assist device. Am J Physiol Heart Circ Physiol. 2023;324:H355–63.

Article  CAS  PubMed  Google Scholar 

Rodenas-Alesina E, Brahmbhatt DH, Rao V, et al. Prediction, prevention, and management of right ventricular failure after left ventricular assist device implantation: a comprehensive review. Front Cardiovasc Med. 2022;9:1040251.

Article  CAS  PubMed  PubMed Central  Google Scholar 

Bellavia D, Iacovoni A, Scardulla C, et al. Prediction of right ventricular failure after ventricular assist device implant: systematic review and meta-analysis of observational studies. Eur J Heart Fail. 2017;19:926–46.

Article  CAS  PubMed  Google Scholar 

Ozenc E, Yildiz O, Baydar O, et al. Impact of right ventricular stroke work index on predicting hospital readmission and functional status of patients with advanced heart failure. Rev Port Cardiol. 2020;39:565–72.

Article  PubMed  Google Scholar 

Brener MI, Masoumi A, Ng VG, et al. Invasive right ventricular pressure-volume analysis: basic principles, clinical applications, and practical recommendations. Circ Heart Fail. 2022;15:e009101.

Article  PubMed  Google Scholar 

Scott A, Chen Z, Hernandez Hernandez D, et al. Pressure volume loop analysis of the right ventricle in heart failure with computed tomography. ASAIO J. 2023;69:e66–72.

Article  PubMed  Google Scholar 

Jumatate R, Ingvarsson A, Smith GJ, et al. Right ventricular stroke work index by echocardiography in adult patients with pulmonary arterial hypertension. BMC Cardiovasc Disord. 2021;21:219.

Article  CAS  PubMed  PubMed Central  Google Scholar 

Jumatate R, Werther-Evaldsson A, Ingvarsson A, et al. Right ventricular stroke work index from echocardiography in patients with pulmonary arterial hypertension-the role in short-term follow-up assessment. Eur Heart J. 2024;2:qyae128.

Google Scholar 

Di Maria MV, Burkett DA, Younoszai AK, et al. Echocardiographic estimation of right ventricular stroke work in children with pulmonary arterial hypertension: comparison with invasive measurements. J Am Soc Echocardiogr. 2015;28:1350–7.

Article  PubMed  Google Scholar 

Albani S, Stolfo D, Venkateshvaran A, et al. Echocardiographic biventricular coupling index to predict precapillary pulmonary hypertension. J Am Soc Echocardiogr. 2022;35:715–26.

Article  PubMed  Google Scholar 

Lara-Breitinger KM, Miranda WR, Eleid MF, et al. Critical appraisal of pulmonary artery systolic pressure by doppler echocardiography in patients with severe tricuspid regurgitation. J Am Soc Echocardiogr. 2024;37:708–11.

Article  PubMed  Google Scholar 

Abbas AE, Fortuin FD, Schiller NB, et al. Echocardiographic determination of mean pulmonary artery pressure. Am J Cardiol. 2003;92:1373–6.

Article  PubMed  Google Scholar 

Murayama M, Kaga S, Onoda A, et al. Head-to-head comparison of hepatic vein and superior Vena Cava flow velocity waveform analyses for predicting elevated right atrial pressure. Ultrasound Med Biol. 2024;50:1352–60.

Article  PubMed  Google Scholar 

Fitzpatrick JR 3rd, Frederick JR, Hsu VM, et al. Risk score derived from pre-operative data analysis predicts the need for biventricular mechanical circulatory support. J Heart Lung Transpl. 2008;27:1286–92.

Article  Google Scholar 

Frea S, Bovolo V, Bergerone S, et al. Echocardiographic evaluation of right ventricular stroke work index in advanced heart failure: a new index? J Card Fail. 2012;18:886–93.

Article  PubMed  Google Scholar 

Cameli M, Lisi M, Righini FM, et al. Right ventricular longitudinal strain correlates well with right ventricular stroke work index in patients with advanced heart failure referred for heart transplantation. J Card Fail. 2012;18:208–15.

Article  PubMed  Google Scholar 

Tokodi M, Németh E, Lakatos BK, et al. Right ventricular mechanical pattern in patients undergoing mitral valve surgery: a predictor of post-operative dysfunction? ESC Heart Fail. 2020;7(3):1246–56.

Article  PubMed  PubMed Central  Google Scholar 

Her C. Right ventricular stroke-work. An index of distribution of pulmonary perfusion in acute respiratory failure. Chest. 1983;84(6):719–24.

Article  CAS  PubMed  Google Scholar 

Mitchell C, Rahko PS, Blauwet LA, et al. Guidelines for performing a comprehensive transthoracic echocardiographic examination in adults: recommendations from the American society of echocardiography. J Am Soc Echocardiogr. 2019;32:1–64.

Article  PubMed  Google Scholar 

Nagueh SF, Smiseth OA, Appleton CP, et al. Recommendations for the evaluation of left ventricular diastolic function by echocardiography: an update from the American society of echocardiography and the European association of cardiovascular imaging. Eur Heart J Cardiovasc Imaging. 2016;17:1321–60.

Article  PubMed  Google Scholar 

Lang RM, Badano LP, Mor-Avi V, et al. Recommendations for cardiac chamber quantification by echocardiography in adults: an update from the American society of echocardiography and the European association of cardiovascular imaging. Eur Heart J Cardiovasc Imaging. 2015;16:233–70.

Article  PubMed  Google Scholar 

Murayama M, Kaga S, Nishino H, et al. Optimal cut plane for tricuspid annular plane systolic excursion measurement. J Am Soc Echocardiogr. 2025;38:516–9.

Article  PubMed  Google Scholar 

Zoghbi WA, Adams D, Bonow RO, et al. Recommendations for noninvasive evaluation of native valvular regurgitation: a report from the American society of echocardiography developed in collaboration with the society for cardiovascular magnetic resonance. J Am Soc Echocardiogr. 2017;30:303–71.

Article  PubMed  Google Scholar 

Hioka T, Kaga S, Mikami T, et al. Overestimation by echocardiography of the peak systolic pressure gradient between the right ventricle and right atrium due to tricuspid regurgitation and the usefulness of the early diastolic transpulmonary valve pressure gradient for estimating pulmonary artery pressure. Heart Vessels. 2017;32:833–42.

Article  PubMed  Google Scholar 

Kaga S, Mikami T, Murayama M, et al. A new method to estimate pulmonary vascular resistance using diastolic pulmonary artery-right ventricular pressure gradients derived from continuous-wave doppler velocity measurements of pulmonary regurgitation. Int J Cardiovasc Imaging. 2017;33:31–8.

Article  PubMed  Google Scholar 

Kaga S, Mikami T, Takamatsu Y, et al. Quantitative and pattern analyses of continuous-wave Doppler-derived pulmonary regurgitant flow velocity for the diagnosis of constrictive pericarditis. J Am Soc Echocardiogr. 2014;27:1223–9.

Article  PubMed  Google Scholar 

Murayama M, Mikami T, Kaga S, et al. Usefulness of the continuous-wave Doppler-derived pulmonary arterial-right ventricular pressure gradient just before atrial contraction for the estimation of pulmonary arterial diastolic and wedge pressures. Ultrasound Med Biol. 2017;43:958–66.

Article  PubMed  Google Scholar 

Murayama M, Okada K, Kaga S, et al. Simple and noninvasive method to estimate right ventricular operating stiffness based on echocardiographic pulmonary regurgitant velocity and tricuspid annular plane movement measurements during atrial contraction. Int J Cardiovasc Imaging. 2019;35:1871–80.

Article  PubMed  Google Scholar 

Fujisawa R, Okada K, Kaga S, et al. Prognostic value of an echocardiographic index reflecting right ventricular operating stiffness in patients with heart failure. Heart Vessels. 2022;37:583–92.

Article  PubMed  Google Scholar 

Nagai Y, Murayama M, Kaga S, et al. Echocardiograp