Clinical utility of out-of-hours chest radiographs

Ben Manning, Geoffrey M. Currie, Rob Davidson, Janelle M. Wheat, Aamer Aziz

Research output: Contribution to journalArticle

Abstract

Purpose: In Australia, radiology services are provided as full 24-hour services, 24-hour urgent out-of-hours (on-call) services, and business hours-only service. The primary purpose of this study was to determine whether out-of-hours (11 PM-7 AM) chest x-ray (CXR) referrals are consistent with out-of-hours service expectations associated with the cost and inconvenience of calling staff in from home. A secondary objective was to determine whether the mobile chest plain film examinations are consistent with expectations of a patient's increased degree of infirmary. Method: A retrospective analysis was undertaken over 6 contiguous months for patients referred from the emergency department for CXRs out-of-hours and within standard hours (in-hours). The study population included 436 out-of-hours patients recruited into the investigation cohort and a matched cohort of 438 CXR examinations performed in-hours. The key information gleaned from the study was concordance or discordance between the clinical details relating to the actual referral and the findings of the CXR. Results: The total sample comprised 414 females (47.4%) and 460 males (52.6%). The mean age was 55.3 years, median was 56.5 years, with a range of 0-97 years. The examination type performed was 8.9% mobile compared with 91.1% departmental for the sample. It was found that there was 43.5% prevalence of abnormalities, 27.0% significant abnormalities, and 8.7% clinically significant abnormality. The predictors found for clinically significant abnormalities were increasing patient age (P < .001) and the need for mobile examination (P < .001). Performing the examination out-of-hours did not predict a clinically significant abnormality (P = .491) and similarly, gender did not predict clinically significant abnormality (P = .152). Conclusion: The results suggest that similar approaches to referrals for CXRs are applied in-hours and during the out-of-hours period which are inconsistent with the "urgent" philosophy that should accompany an out-of-hours service. Only increasing patient age and the need for a mobile CXR offered predictors of a clinical significant abnormality and this offers an insight into the potential approach to the development of referral guidelines for out-of-hours procedures.

Original languageEnglish
Pages (from-to)52-58
Number of pages7
JournalJournal of Medical Imaging and Radiation Sciences
Volume42
Issue number2
DOIs
Publication statusPublished - 2011
Externally publishedYes

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Thorax
Referral and Consultation
X-Rays
Motion Pictures
Radiology
Hospital Emergency Service
Guidelines
Costs and Cost Analysis
Population

Cite this

Manning, Ben ; Currie, Geoffrey M. ; Davidson, Rob ; Wheat, Janelle M. ; Aziz, Aamer. / Clinical utility of out-of-hours chest radiographs. In: Journal of Medical Imaging and Radiation Sciences. 2011 ; Vol. 42, No. 2. pp. 52-58.
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abstract = "Purpose: In Australia, radiology services are provided as full 24-hour services, 24-hour urgent out-of-hours (on-call) services, and business hours-only service. The primary purpose of this study was to determine whether out-of-hours (11 PM-7 AM) chest x-ray (CXR) referrals are consistent with out-of-hours service expectations associated with the cost and inconvenience of calling staff in from home. A secondary objective was to determine whether the mobile chest plain film examinations are consistent with expectations of a patient's increased degree of infirmary. Method: A retrospective analysis was undertaken over 6 contiguous months for patients referred from the emergency department for CXRs out-of-hours and within standard hours (in-hours). The study population included 436 out-of-hours patients recruited into the investigation cohort and a matched cohort of 438 CXR examinations performed in-hours. The key information gleaned from the study was concordance or discordance between the clinical details relating to the actual referral and the findings of the CXR. Results: The total sample comprised 414 females (47.4{\%}) and 460 males (52.6{\%}). The mean age was 55.3 years, median was 56.5 years, with a range of 0-97 years. The examination type performed was 8.9{\%} mobile compared with 91.1{\%} departmental for the sample. It was found that there was 43.5{\%} prevalence of abnormalities, 27.0{\%} significant abnormalities, and 8.7{\%} clinically significant abnormality. The predictors found for clinically significant abnormalities were increasing patient age (P < .001) and the need for mobile examination (P < .001). Performing the examination out-of-hours did not predict a clinically significant abnormality (P = .491) and similarly, gender did not predict clinically significant abnormality (P = .152). Conclusion: The results suggest that similar approaches to referrals for CXRs are applied in-hours and during the out-of-hours period which are inconsistent with the {"}urgent{"} philosophy that should accompany an out-of-hours service. Only increasing patient age and the need for a mobile CXR offered predictors of a clinical significant abnormality and this offers an insight into the potential approach to the development of referral guidelines for out-of-hours procedures.",
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Clinical utility of out-of-hours chest radiographs. / Manning, Ben; Currie, Geoffrey M.; Davidson, Rob; Wheat, Janelle M.; Aziz, Aamer.

In: Journal of Medical Imaging and Radiation Sciences, Vol. 42, No. 2, 2011, p. 52-58.

Research output: Contribution to journalArticle

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N2 - Purpose: In Australia, radiology services are provided as full 24-hour services, 24-hour urgent out-of-hours (on-call) services, and business hours-only service. The primary purpose of this study was to determine whether out-of-hours (11 PM-7 AM) chest x-ray (CXR) referrals are consistent with out-of-hours service expectations associated with the cost and inconvenience of calling staff in from home. A secondary objective was to determine whether the mobile chest plain film examinations are consistent with expectations of a patient's increased degree of infirmary. Method: A retrospective analysis was undertaken over 6 contiguous months for patients referred from the emergency department for CXRs out-of-hours and within standard hours (in-hours). The study population included 436 out-of-hours patients recruited into the investigation cohort and a matched cohort of 438 CXR examinations performed in-hours. The key information gleaned from the study was concordance or discordance between the clinical details relating to the actual referral and the findings of the CXR. Results: The total sample comprised 414 females (47.4%) and 460 males (52.6%). The mean age was 55.3 years, median was 56.5 years, with a range of 0-97 years. The examination type performed was 8.9% mobile compared with 91.1% departmental for the sample. It was found that there was 43.5% prevalence of abnormalities, 27.0% significant abnormalities, and 8.7% clinically significant abnormality. The predictors found for clinically significant abnormalities were increasing patient age (P < .001) and the need for mobile examination (P < .001). Performing the examination out-of-hours did not predict a clinically significant abnormality (P = .491) and similarly, gender did not predict clinically significant abnormality (P = .152). Conclusion: The results suggest that similar approaches to referrals for CXRs are applied in-hours and during the out-of-hours period which are inconsistent with the "urgent" philosophy that should accompany an out-of-hours service. Only increasing patient age and the need for a mobile CXR offered predictors of a clinical significant abnormality and this offers an insight into the potential approach to the development of referral guidelines for out-of-hours procedures.

AB - Purpose: In Australia, radiology services are provided as full 24-hour services, 24-hour urgent out-of-hours (on-call) services, and business hours-only service. The primary purpose of this study was to determine whether out-of-hours (11 PM-7 AM) chest x-ray (CXR) referrals are consistent with out-of-hours service expectations associated with the cost and inconvenience of calling staff in from home. A secondary objective was to determine whether the mobile chest plain film examinations are consistent with expectations of a patient's increased degree of infirmary. Method: A retrospective analysis was undertaken over 6 contiguous months for patients referred from the emergency department for CXRs out-of-hours and within standard hours (in-hours). The study population included 436 out-of-hours patients recruited into the investigation cohort and a matched cohort of 438 CXR examinations performed in-hours. The key information gleaned from the study was concordance or discordance between the clinical details relating to the actual referral and the findings of the CXR. Results: The total sample comprised 414 females (47.4%) and 460 males (52.6%). The mean age was 55.3 years, median was 56.5 years, with a range of 0-97 years. The examination type performed was 8.9% mobile compared with 91.1% departmental for the sample. It was found that there was 43.5% prevalence of abnormalities, 27.0% significant abnormalities, and 8.7% clinically significant abnormality. The predictors found for clinically significant abnormalities were increasing patient age (P < .001) and the need for mobile examination (P < .001). Performing the examination out-of-hours did not predict a clinically significant abnormality (P = .491) and similarly, gender did not predict clinically significant abnormality (P = .152). Conclusion: The results suggest that similar approaches to referrals for CXRs are applied in-hours and during the out-of-hours period which are inconsistent with the "urgent" philosophy that should accompany an out-of-hours service. Only increasing patient age and the need for a mobile CXR offered predictors of a clinical significant abnormality and this offers an insight into the potential approach to the development of referral guidelines for out-of-hours procedures.

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