Analysis of influencing factors of recurrent spontaneous pneumothorax in adolescents after closed thoracic drainage / 中国基层医药

ABSTRACT

Objective@#To explore the influencing factors of recurrent spontaneous pneumothorax after thoracic closed drainage in adolescents.@*Methods@#From January 2010 to May 2018, 62 young patients with spontaneous pneumothorax treated in School Hospital of Zhejiang Ocean University and referral to superior hospital were selected.The patients were followed up by telephone or clinic for 24 months after discharge, and their general information and recurrence were collected.Logistic regression multivariate analysis was used to investigate the influencing factors of recurrent spontaneous pneumothorax after thoracic closed drainage in adolescents.@*Results@#Sixty-two patients were followed up, 15 patients with recurrence, and the recurrence rate was 24.19%.Univariate analysis showed that age over 20[recurrence and non-recurrence ≤20 years old 11 cases (73.33%), 11 cases (23.40%); >20 years old 4 cases (26.67%), 36 cases (76.59%)], body mass over 19.6kg/m2[recurrence and non-recurrence BMI ≤19.6 10 cases (66.67%), 18 cases (38.30%); BMI>19.6 5 cases (33.33%), 29 cases (61.70%)], smoking[recurrence and non-recurrence smoking 12 cases (80.00%), 14 cases (29.79%); non-smoking 3 cases (20.00%), 33 cases (70.21%)], degree of pneumobula lesions[recurrence and non-recurrence mildly 3 cases (20.00%), 19 cases (40.43%); medium 5 cases (33.33%), 20 cases (42.55%); severe 7 cases (46.67%), 8 cases (17.02%)], pneumothorax[recurrence and non-recurrence a little 2 cases (13.33%), 20 cases (46.81%); massive 13 cases (86.67%), 27 cases (53.19%)] and diameter of pneumobula over 1cm[recurrence and non-recurrence ≤1cm 5 cases (33.33%), 28 cases (61.70%); >1cm 10 cases (66.67%), 18 cases (38.29%)] were associated with recurrence after closed thoracic drainage (χ2=11.857, 5.192, 9.325, 13.522, 9.824, 6.823, all P<0.05). The results of logistic multivariate regression analysis showed that age(OR 1.224; 95% CI 0.958-12.142), BMI(OR 3.463; 95% CI 0.824-9.024), smoking(OR 5.000; 95% CI 1.534-9.852), degree of pneumobulus lesions(OR 12.041; 95% CI 6.032-12.174) and pneumothorax(OR 2.465; 95% CI 1.627-4.684) were the influencing factors for recurrence after primary spontaneous pneumothorax drainage in adolescents (all P<0.05).@*Conclusion@#Younger than 20 years of age, smoking, pneumobulous lesions and large pneumothorax are risk factors for recurrence after primary spontaneous pneumothorax drainage.