Objective to investigate the morbidity of respiratorycomplication in very low birth weight infants (VLBWI), to know the essentiality of intensive care.
目的探讨极低出生体重儿呼吸系统并发症的发生情况，认识呼吸监测的必要性。
2
It has many advantages including wide application, simple operation, decreased injury and stimulation to respiratory tract, less complication and reliable ventilation efficacy.
具有应用范围广，操作简便，对呼吸道的损伤、刺激小，并发症少，能维持有效、可靠的通气。
3
Results, None of the 100 patients had the complication of respiratory system.