Is the Allen test reliable enough?
| Autor: | Tiina Terho, Jari Laurikka, Mika Kohonen, Ossi Teerenhovi, Matti Tarkka |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Pulmonary and Respiratory Medicine
Adult Male medicine.medical_specialty Diagnostic Techniques Cardiovascular Collateral Circulation Blood Pressure Allen's test Sensitivity and Specificity Coronary artery bypass surgery medicine.artery Preoperative Care medicine Plethysmograph Humans Pallor Radial artery Coronary Artery Bypass business.industry Contraindications Ultrasound Ultrasonography Doppler General Medicine Middle Aged Collateral circulation Hand Plethysmography Blood pressure Regional Blood Flow Radial Artery Tissue and Organ Harvesting Objective test Surgery Female Radiology Cardiology and Cardiovascular Medicine business Blood Flow Velocity |
| Zdroj: | European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery. 32(6) |
| ISSN: | 1010-7940 |
| Popis: | Objective: The Allen test is a widely used screening method of hand circulation. Our aim was to study whether the Allen test alone gives sufficient information for harvesting the radialartery in coronaryartery bypass grafting.Methods:One hundred and forty-five patients scheduled for coronaryarterybypass graftingunderwentthe Allentest,upperarm Doppler ultrasonographyanddigitalplethysmography. Inultrasonography both anatomical and circulatory measurements were performed. The Allen test was then compared with more objective tests and sensitivity; specificity and diagnostic accuracy were calculated. Results: Most of the patients had a negative Allen test, but 23% were positive (abnormal). Ultrasound scanning revealed anatomical anomalies in 10 patients and circulatory deficits in 17 patients. Thirteen patients had both circulatory and anatomical abnormalities. Sensitivity of the Allen test was 73.2% and specificity 97.1% based on our findings. There were no abnormalities in therecoveryofthearmswithharvestedradialgrafts.Conclusions:TheAllentestisagoodandvalidscreeningtestforthecirculationofthehand. If the Allen test is negative it is safe to harvest the radial artery. If it is positive further examinations are needed to ensure safe harvesting of the radial artery. # 2007 European Association for Cardio-Thoracic Surgery. Published by Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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