Çocuk Sağlığı ve Hastalıkları Dergisi
2014 , Vol 57 , Num 2
The importance of carina angle in infants with patent ductus arteriosus
Gaziosmanpaşa Üniversitesi Tıp Fakültesi 1Neonatoloji Uzmanı, Başkent Üniversitesi Tıp Fakültesi 2Pediatri Doçenti,
4Pediatri Profesörü, Balıkesir Atatürk Devlet Hastanesi 3Neonatoloji Uzmanı
*İletişim: denizanuk@yahoo.com
Patent ductus arteriosus (PDA) may be associated with increased morbidity
in premature infants. Diagnosis and treatment of hemodynamically significant
ductus arteriosus is important. In this study, we investigated the predictive
role of carina angle on chest X-ray in the diagnosis of PDA. Twenty-two
premature infants with gestational age of less than 32 weeks were enrolled
into this study during the period from October 2009 to June 2010 at the
Neonatal Intensive Care Unit of Başkent University Hospital. We compared
the carina angle of 10 patients who had hemodynamically significant PDA
with 12 patients who had no PDA. Carina angle measurement was repeated
after PDA treatment. The hemodynamically significant PDA group had a
significantly wider carina angle (94.6±6.0º) compared to the no ductus group
(81.1±9.1º; p<0.05). The predictive role of carina angle in the diagnosis of
PDA was assessed by receiver operating characteristic (ROC) curve (area
under the curve (AUC)=0.096; p=0.001). The cut-off value of carina angle
was 91º, with a sensitivity of 83% and specificity of 80%. We observed
significant reduction in the carina angle measurement after the treatment
(p=0.001). Measurement of carina angle is a quite simple and effective
method of assessing PDA. Carina angle may provide information about PDA
when echocardiography cannot be done for the diagnosis.
Anahtar Kelimeler :
patent duktus arteriozus, prematüre bebek, karina açısı.