求翻译：试验组在西医基础治疗上加用生脉通阳颗粒，疗程为三个月。观察患者临床心功能等级，症状、体征及超声心动图的变化，并对症状及体征进行量化评分，作出疗效评价。是什么意思？

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Pilot Group in western medicine based on treatment with the pulse-yang particles, a course for 3 months. Observation of the patient clinical features, symptoms, signs and echocardiography, and the symptoms and signs in a quantitative score, to assess efficacy.

The experimental group adds in the doctor practicing western medicine foundation treatment with lives the arteries to pass the positive pellet, the treatment course is three months.Observes the patient clinical heart function rank, the symptom, the symptom and the echocardiogram change, and carries

Group therapy of Western medicine combined with pulse-activating Yang granules, with a course of three months. Observation of clinical cardiac function of patients with grade echocardiographic changes, signs and symptoms, and the symptoms and signs are scored, and evaluation.

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