Abstract
The current study aimed to elucidate the efficacy of interatrial shunt device (IASD) for the treatment of acute pulmonary hypertensive crisis (PHC) and chronic pulmonary arterial hypertension (PAH). After establishing chronic PAH models using dehydrogenized monocrotaline (DHMCT), PAH dogs were implanted with IASDs (group A) or received no intervention (group B). One month later, DHMCT was injected again to establish an acute PHC. The prognosis, hemodynamics, ultrasound cardiography, electrocardiogram, and lung pathology of the dogs were observed. The baseline mean pulmonary arterial pressure increased from 12.70 ± 1.03 to 19.95 ± 1.75 mmHg and established a chronic PAH model 2 months after DHMCT injection (1.50 mg/kg). After an additional injection of DHMCT (1.50 mg/kg) in the chronic PAH model, acute PHC occurred. Mean PAP, sPAP, and pulmonary vascular resistance increased to 22.67 ± 1.80 mmHg, 35.70 ± 1.66 mmHg, and 12.50 ± 3.50 WOOD U, respectively. Cardiac output (CO) decreased to 1.31 ± 0.26 L/min, and the right-to-left shunt caused hypoxemia. The survival rates of the dogs with and those without IASD were 70.0% and 22.2% (P = 0.037), respectively. Six months after PHC, the CO between the dogs with and those without IASD were 1.44 ± 0.11 L/min and 1.18 ± 0.04 L/min (P = 0.028). The long-term survival rates were 50.0% and 22.2%, respectively (P = 0.21). IASD might be efficacious and beneficial for treating acute PHC and chronic PAH, as well as improving prognosis.
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06 August 2022
A Correction to this paper has been published: https://doi.org/10.1007/s11239-022-02683-9
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Acknowledgements
The animal experiment is conducted in Laboratory Animal Center of Zhongshan Hospital affiliated to Fudan University. I would like to express my gratitude to my co-workers and all the staff workers during the animal experiment for their help and opinions.
Funding
This study was funded by Shanghai Association for Science and Technology (Grant No. 14ZR1406700).
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Yang, L., Zhang, L., Chen, S. et al. Efficacy of interatrial shunt devices: an opening window to acute pulmonary hypertensive crisis and chronic pulmonary arterial hypertension. J Thromb Thrombolysis 54, 123–131 (2022). https://doi.org/10.1007/s11239-022-02635-3
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DOI: https://doi.org/10.1007/s11239-022-02635-3