50: Vascular Pedicle Width on CXR Correlates With Volume Overload: A Meta Analysis

Abstract

Study ObjectivesVascular pedicle width (VPW), a measurement obtained from a chest X-ray (CXR), is thought to be an indicator of circulating blood volume. To date there are but a handful of studies that demonstrate a correlation between high VPW and volume overload, while utilizing different VPW values and CXR techniques. Objective: To determine the mean VPWs measurements from erect and supine CXRs. Secondary outcome is to determine whether VPWs measurements correlate with volume overload.MethodsMEDLINE database, Web of Science, and The Cochrane Central Register of Controlled Trials were searched electronically for relevant articles. References from the original and review publications selected electronically were manually searched for additional relevant articles. Two investigators independently reviewed relevant articles, for inclusion criteria and data extraction. Mean VPW measurements from both supine and erect CXRs and their correlation with volume overload were calculated using Comprehensive Meta-analysis Software 2.2.ResultsData from 8 studies with a total of 363 subjects were included resulting in a mean VPW measurement of 74mm (95% CI 72.9-75.4) and 59mm (95% CI 56.6-62.6) for supine and erect CXRs, respectively. The correlation coefficient for volume overload and VPW were 0.81 (95% CI 0.74-0.86) for both CXR techniques, 0.81 (95% CI 0.72-0.87) for supine, and 0.80 (95% CI 0.69-0.87) for erect CXRs.ConclusionThere is a clinical and statistical correlation with VPW and volume overload. VPW may be used to evaluate the volume status of a patient regardless of CXR technique. Study ObjectivesVascular pedicle width (VPW), a measurement obtained from a chest X-ray (CXR), is thought to be an indicator of circulating blood volume. To date there are but a handful of studies that demonstrate a correlation between high VPW and volume overload, while utilizing different VPW values and CXR techniques. Objective: To determine the mean VPWs measurements from erect and supine CXRs. Secondary outcome is to determine whether VPWs measurements correlate with volume overload. Vascular pedicle width (VPW), a measurement obtained from a chest X-ray (CXR), is thought to be an indicator of circulating blood volume. To date there are but a handful of studies that demonstrate a correlation between high VPW and volume overload, while utilizing different VPW values and CXR techniques. Objective: To determine the mean VPWs measurements from erect and supine CXRs. Secondary outcome is to determine whether VPWs measurements correlate with volume overload. MethodsMEDLINE database, Web of Science, and The Cochrane Central Register of Controlled Trials were searched electronically for relevant articles. References from the original and review publications selected electronically were manually searched for additional relevant articles. Two investigators independently reviewed relevant articles, for inclusion criteria and data extraction. Mean VPW measurements from both supine and erect CXRs and their correlation with volume overload were calculated using Comprehensive Meta-analysis Software 2.2. MEDLINE database, Web of Science, and The Cochrane Central Register of Controlled Trials were searched electronically for relevant articles. References from the original and review publications selected electronically were manually searched for additional relevant articles. Two investigators independently reviewed relevant articles, for inclusion criteria and data extraction. Mean VPW measurements from both supine and erect CXRs and their correlation with volume overload were calculated using Comprehensive Meta-analysis Software 2.2. ResultsData from 8 studies with a total of 363 subjects were included resulting in a mean VPW measurement of 74mm (95% CI 72.9-75.4) and 59mm (95% CI 56.6-62.6) for supine and erect CXRs, respectively. The correlation coefficient for volume overload and VPW were 0.81 (95% CI 0.74-0.86) for both CXR techniques, 0.81 (95% CI 0.72-0.87) for supine, and 0.80 (95% CI 0.69-0.87) for erect CXRs. Data from 8 studies with a total of 363 subjects were included resulting in a mean VPW measurement of 74mm (95% CI 72.9-75.4) and 59mm (95% CI 56.6-62.6) for supine and erect CXRs, respectively. The correlation coefficient for volume overload and VPW were 0.81 (95% CI 0.74-0.86) for both CXR techniques, 0.81 (95% CI 0.72-0.87) for supine, and 0.80 (95% CI 0.69-0.87) for erect CXRs. ConclusionThere is a clinical and statistical correlation with VPW and volume overload. VPW may be used to evaluate the volume status of a patient regardless of CXR technique. There is a clinical and statistical correlation with VPW and volume overload. VPW may be used to evaluate the volume status of a patient regardless of CXR technique.