Results
In this study, the effects of three common respiratory tract
humidification methods were evaluated. There were 150 patients included
in our study with the ages ranged between 18 to 70 years old. The
average age, average in-hospital day, gender distribution, and GCS score
distribution showed no difference among three groups (Table 1). The
blood oxygen partial pressure, blood oxygen saturation and respiratory
frequency showed no difference in Group B and C. The blood oxygen
partial pressure and blood pressure saturation were significantly lower
in Group A than those in Group B and C, and the respiratory frequency in
Group A was statistically higher than that in group B and C (P<0.05) (Table 2).
As Table 3 showed that, the distribution of viscosity degree of airway
sputum showed that the degree of sputum viscosity showed an increasing
trend during the first 7 days, suggesting that the changes might be
significant in the following days. With the time of tracheotomy goes,
the viscosity degree of airway sputum in group A had the fastest
progressing and patients in group A was easy to form high-level viscous
sputum. Table 4 indicated that the humidification effects statistically
differed among three groups, (P< 0.05), group A was prone to
occur insufficient or excessive humidification, and patients in group B
and C gained the highest ratio of appropriate humidification. Method A
had the least sputum intake times, while method B and C had similar more
times, indicating an equal humidification effects. In group A, scab
formation was significantly more than that in groups B and C (P<0.05). The incidence of airway spasm was significantly increased
(P< 0.05) in groups A than in group B and group C . After
compared the degree of secondary infection in the first 7 days (Table
5), we observed that the secondary pneumonia occurred in both three
groups, and the heating and humidification group showed the lowest
infection ratio (P< 0.05), but the composition of the infection
degree showed no difference in three groups . The secondary pneumonia on
the 30th day showed that, the infection ratio showed
no difference among three groups, but the infection degree was
significantly differed. The number of people with the third infection
degree is significantly less in group C (P< 0.05), while there
was no difference was found between groups A and B.
The results (table 6) showed that the group A had the lowest average
daily nursing times, as well as the nursing load, but there was no
difference between groups B and C. The result of occupational
satisfaction survey found that the work intensity was significantly
higher in group B and C than that of group A in the inner satisfaction
scale of the nurse staff (P< 0.05), and no statistical
difference was found in other items (table 8).