Akademik Veri Yönetim Sistemi
Annals of Medical Research, cilt.30, sa.2, ss.226-230, 2023 (Hakemli Dergi)
Abstract
Aim: In order to make a definitive diagnosis of acute pulmonary embolism (APE), patients
to undergo computed tomography angiography (CTA) are selected according to certain
criteria. This study aimed to examine the partial oxygen pressure PaO2/inspired oxygen
concentration ratio (P/F) as a new parameter to be used for this purpose in addition to
the Wells score, which is one of the methods of determining clinical probability.
Materials and Methods: This study was prospectively conducted between July 1, 2022,
and October 1, 2022, and included 80 patients that presented to the emergency department
with acute dyspnea and were diagnosed with APE using CTA. The Wells scores of the
patients were recorded at the time of their presentation to the emergency department.
IBM SPSS v. 20.0 was used for the statistical analysis of the data.
Results: Of the cases included in the study, seven had a low probability, 57 had an
intermediate probability, and 16 had a high probability of APE. The PaO2 values of the
patients were 56.7±8.0, 56.1±11.2, and 51.8±9.9 mmHg for the low, intermediate, and
high probability groups, respectively. According to the Wells scores, the P/F ratios of
the patients with low, intermediate, and high probability were determined as 205.5±72.2,
198.5±62.5, and 183.5±43.6, respectively.
Conclusion: There was a negative correlation between the P/F ratio and Wells score,
but this was not statistically significant. Therefore, it may not be appropriate to evaluate
the P/F ratio in making a decision to perform CTA in clinical practice.