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THE ABNORMAL AORTA - A STATISTICAL DEFINITION AND STRATEGY FOR MONITORING CHANGE
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UNSPECIFIED (1995) THE ABNORMAL AORTA - A STATISTICAL DEFINITION AND STRATEGY FOR MONITORING CHANGE. EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY, 10 (1). pp. 95-100. ISSN 1078-5884.
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Abstract
Objectives: This study defines a protocol for monitoring the growth of small abdominal aortic aneurysms based on age-related abnormality thresholds, observed aortic growth patterns and the limits of precision of the measurement technique.
Design: 13000 men aged 60 - 75 years were invited to their GP's surgery for measurement of the maximum diameter of the infrarenal aorta. Seventy-six percent responded and measurement was possible in 97.1% of the respondents. The AP diameter of the aorta seas measured according to a strict protocol, with a portable ultrasound scanner.
Setting: Cases were recruited from the conurbation of Birmingham and Solihull, U.K.
Chief outcome measure: A statistical description of the differences in distributions of aortic diameters of four age groups of males.
Main result: The aorta expands in diameter during the seventh and eighth decade for up to 25% of all those screened. The order of magnitude of this change is similar to that previously attributed to the growth of small aneurysms. Age-related thresholds for abnormality should range from 24 mm for a 60 year old to 37 mm for a 75 year old.
Conclusions: Using data on the expected maximum rate of change of the dilated aorta and statistically derived thresholds from this analysis a monitoring strategy is suggested for those with an abnormal aorta.
Item Type: | Journal Article | ||||
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Subjects: | R Medicine > RD Surgery R Medicine > RC Internal medicine |
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Journal or Publication Title: | EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY | ||||
Publisher: | W B SAUNDERS CO LTD | ||||
ISSN: | 1078-5884 | ||||
Official Date: | July 1995 | ||||
Dates: |
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Volume: | 10 | ||||
Number: | 1 | ||||
Number of Pages: | 6 | ||||
Page Range: | pp. 95-100 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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