OBJECTIVES: We sought to evaluate the capability of the right ventricle to regain normal morphology and function after pulmonary endarterectomy, to correlate right ventricular reverse remodeling with functional status, and to identify independent predictors of clinical failure after surgical intervention. METHODS: From December 2000 through August 2003, 45 patients underwent isolated pulmonary endarterectomy. Morphology and function of the right ventricle were studied by using a combination of right heart catheterization, cardiac magnetic resonance, and transthoracic echocardiography. Functional status was evaluated by using New York Heart Association class. Full preoperative data were available for 37 candidates. All patients were evaluated before discharge, at 3 months, and at 1, 2, and 3 years postoperatively using the same modalities. RESULTS: Immediately after surgical intervention, right ventricular cavitary dimensions decreased significantly, and tricuspid regurgitation radically improved. Right ventricular ejection fraction and functional status improved and right ventricular hypertrophy reversed over a longer time period. Higher ventricular dimensions and lower ejection fraction of the right ventricle were associated with poorer functional status at any time postoperatively. At discharge, pulmonary vascular resistance of greater than 509 dyne x sec x cm(-5) and right ventricular ejection fraction of 24% or less predicted clinical failure at 12 months' follow-up. CONCLUSIONS: After pulmonary endarterectomy, the right ventricle recovers and maintains normal architecture and function over time, regardless of the severity of preoperative disease. Accurate preoperative evaluation of the hemodynamics and anatomy of the thromboembolic lesions are mandatory. If pulmonary endarterectomy is not expected to decrease pulmonary vascular resistance to less than 509 dyne x sec x cm(-5), indication for surgical intervention needs to be carefully evaluated.
OBJECTIVES: We sought to evaluate the capability of the right ventricle to regain normal morphology and function after pulmonary endarterectomy, to correlate right ventricular reverse remodeling with functional status, and to identify independent predictors of clinical failure after surgical intervention. METHODS: From December 2000 through August 2003, 45 patients underwent isolated pulmonary endarterectomy. Morphology and function of the right ventricle were studied by using a combination of right heart catheterization, cardiac magnetic resonance, and transthoracic echocardiography. Functional status was evaluated by using New York Heart Association class. Full preoperative data were available for 37 candidates. All patients were evaluated before discharge, at 3 months, and at 1, 2, and 3 years postoperatively using the same modalities. RESULTS: Immediately after surgical intervention, right ventricular cavitary dimensions decreased significantly, and tricuspid regurgitation radically improved. Right ventricular ejection fraction and functional status improved and right ventricular hypertrophy reversed over a longer time period. Higher ventricular dimensions and lower ejection fraction of the right ventricle were associated with poorer functional status at any time postoperatively. At discharge, pulmonary vascular resistance of greater than 509 dyne x sec x cm(-5) and right ventricular ejection fraction of 24% or less predicted clinical failure at 12 months' follow-up. CONCLUSIONS: After pulmonary endarterectomy, the right ventricle recovers and maintains normal architecture and function over time, regardless of the severity of preoperative disease. Accurate preoperative evaluation of the hemodynamics and anatomy of the thromboembolic lesions are mandatory. If pulmonary endarterectomy is not expected to decrease pulmonary vascular resistance to less than 509 dyne x sec x cm(-5), indication for surgical intervention needs to be carefully evaluated.
Authors: Mariëlle C van de Veerdonk; Sophie A Dusoswa; J Tim Marcus; Harm-Jan Bogaard; Onno Spruijt; Taco Kind; Nico Westerhof; Anton Vonk-Noordegraaf Journal: Int J Cardiovasc Imaging Date: 2013-12-04 Impact factor: 2.357
Authors: John E Cannon; Li Su; David G Kiely; Kathleen Page; Mark Toshner; Emilia Swietlik; Carmen Treacy; Anie Ponnaberanam; Robin Condliffe; Karen Sheares; Dolores Taboada; John Dunning; Steven Tsui; Choo Ng; Deepa Gopalan; Nicholas Screaton; Charlie Elliot; Simon Gibbs; Luke Howard; Paul Corris; James Lordan; Martin Johnson; Andrew Peacock; Robert MacKenzie-Ross; Benji Schreiber; Gerry Coghlan; Kostas Dimopoulos; Stephen J Wort; Sean Gaine; Shahin Moledina; David P Jenkins; Joanna Pepke-Zaba Journal: Circulation Date: 2016-04-06 Impact factor: 29.690
Authors: Caio Julio Cesar Dos Santos Fernandes; Jaquelina Sonoe Ota-Arakaki; Frederico Thadeu Assis Figueiredo Campos; Ricardo de Amorim Correa; Marcelo Basso Gazzana; Carlos Vianna Poyares Jardim; Fábio Biscegli Jatene; Jose Leonidas Alves Junior; Roberta Pulcheri Ramos; Daniela Tannus; Carlos Teles; Mario Terra Filho; Daniel Waetge; Rogerio Souza Journal: J Bras Pneumol Date: 2022-06-24 Impact factor: 2.800
Authors: Marius Berman; Deepa Gopalan; Linda Sharples; Nick Screaton; Caroline Maccan; Karen Sheares; Joanna Pepke-Zaba; John Dunning; Steven Tsui; David P Jenkins Journal: Pulm Circ Date: 2014-03 Impact factor: 3.017