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01.12.2018 | Research article | Ausgabe 1/2018 Open Access

BMC Pulmonary Medicine 1/2018

Improved heart hemodynamics after draining large-volume pleural effusion: a prospective cohort study

BMC Pulmonary Medicine > Ausgabe 1/2018
Zheng Wang, Qi-Zhe Cai, Cheng-Jun Ban, Duo Chen, Li-Li Xu, Xiao-Juan Wang, Zhen Wang, Yuan Yang, Xiu-Zhang Lv, Huan-Zhong Shi
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Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1186/​s12890-018-0625-5) contains supplementary material, which is available to authorized users.



Pleural effusion (PE) drainage can relieve the symptoms of dyspnea; however, details of the resulting hemodynamic changes remain undefined.


Subjects older than 12 years with massive PE requiring pleural drainage were included in this study. Hemodynamic parameters were collected using transthoracic echocardiography at pre-drainage, immediately post-drainage, and 24 h after drainage.


We enrolled 47subjects in this prospective study from June 9, 2015 to September 18, 2016 in Beijing Chaoyang Hospital and 28 subjects were analyzed finally. Draining large-volume PE led to a progressive increase in left ventricular end-diastolic volume index, left atrial volume index, right ventricular area, right atrial area, left ventricular ejection fraction, stroke volume, and tricuspid annular plane systolic excursion, both immediately (P < 0.05) and 24 h after drainage (P < 0.05). The cardiac diastolic measurement ratios of early-transmitral flow velocity to diastolic mitral annular velocity and myocardial performance index decreased significantly following drainage (P < 0.05). More parameters were influenced by left-sided PE drainage. The correlation between effusion volume and changes in echocardiographic measurements was not statistically significant.


Improved preload, and systolic and diastolic function is pivotal for hemodynamic change after draining large PE volumes. Subjects experienced improved cardiac hemodynamics following PE drainage, underlining the beneficial therapeutic and subjective effects.
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