ABSTRACT
Studies were made on the physically disabled and scoliotic children who underwent tracheostomy. The purpose was to clarify factors that might lead to the tracheo-innominate artery fistula, by use of three-dimensional helical CT (3 DCT). In a case of right scoliosis, the tracheo-innominate artery fistula may be caused by the left-ward displacement of the trachea from the vertebra, having the innominate artery ride over the trachea and compressing it. In a case of the physically disabled and scoliotic children, there may be more compression on the trachea by the innominate artery along with the worsening scoliosis. Therefore, we consider it necessary to examine the structural relationship between the trachea, the vertebra, and the innominate artery periodically by 3 DCT.
Subject(s)
Brachiocephalic Trunk/diagnostic imaging , Disabled Children , Respiratory Tract Fistula/diagnostic imaging , Scoliosis/complications , Tomography, X-Ray Computed , Trachea/diagnostic imaging , Vascular Fistula/diagnostic imaging , Adolescent , Child , Child, Preschool , Female , Humans , Male , Radiographic Image Enhancement , Respiratory Tract Fistula/etiology , Scoliosis/diagnostic imaging , Tracheostomy/adverse effects , Vascular Fistula/etiologyABSTRACT
To test the hypothesis that arterial oxygenation during one lung ventilation (OLV) is impaired more in obese patients than in non-obese control patients, we performed consecutive measurements of arterial oxygen tension (PaO2) during OLV in 48 patients scheduled for pulmonary lobectomy. Minimum value of PaO2 during OLV was significantly less in 16 obese patients [body mass index (BMI) > 25] compared to 32 control patients (BMI < 25). Moreover, PaO2 value of left lung ventilation was significantly less than the value of right lung ventilation in obese patients while the difference was not statistically significant in the control group.
