结论血液透析有效降低心脏前负荷，增加心肌收缩力，改善心功能，同时也增加心脏后负荷。
Conclusion Hemodialysis treatment is effective in decreasing cardiac preload, increasing myocardial contractility and cardiac afterload, improving cardiac function.
结论两种药物联用降低心脏前负荷、后负荷，增加心脏每分输出量，改善心肺功能。
Conclusion Combination use of two drugs can decrease pre load and post load of heart, increase cardial minute ouput, improve the heart function.
结论两种药物联用降低心脏前负荷、后负荷，增加心脏每分输出量，改善心肺功能。
Conclusion Combination use of two drugs can decrease pre load and post load of heart, increase cardial minute ouput, improve the heart function.
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