Evaluation of patients availability to undergo PCI assessed by ALLEN’S test / Монголын Анагаах Ухаан

ABSTRACT

Introduction. An uncommon complication of radial arterial blood sampling/cannulation is disruption ofthe artery (obstruction by clot), placing the hand at risk of ischemia. Those people who lack the dualsupply are at much greater risk of ischemia. The risk can be reduced by performing Allen’s test beforehand. People who have a single blood supply in one hand often have a dual supply in the other, allowingthe practitioner to take blood from the side with dual supply.The utility of the Allen’s test is questionable,[1] and no direct correlation with reduced ischemiccomplications of radial artery cannulation have ever been proven. In 1983, Slogoff and colleaguesreviewed 1,782 radial artery cannulations and found that 25% of them resulted in complete radial arteryocclusion, without apparent adverse effects.[2] A number of reports have been published in whichpermanent ischemic sequelae occurred even in the presence of a normal Allen’s test.[3, 4] In addition,the results of Allen’s tests do not appear to correlate with distal blood flow as demonstrated by fluorescein dye injections.[5, 6]Goal. Transradial coronary catheterization across the whole spectrum of Allen’s test results was safeand feasible to address the current uncertainty about the predictive capacity of the Allen’s test fortransradial access.Materials and Methods: This type of descriptive research methods. The patients assisted by SSCHand there were between the ages of 54-88, totally 28 patients. The hand is elevated and the patient/person is asked to make a fist for about 30 seconds.Pressure is applied over the ulnar and the radial arteries so as to occlude both of them.Still elevated, the hand is then opened. It should appear blanched (pallor can be observed at the fingernails). Ulnar pressure is released and the color should return in 7 seconds. If color returns as describedabove, the Allen’s test is considered to be “POSITIVE.” If color fails to return, the test is considered“NEGATIVE” and the ulnar artery supply to the hand is not sufficient. The radial artery therefore cannotbe safely pricked/cannulated.ResultPatients with non-normal Allen’s test results 32.1%.There weren’t any correlation of probability between positive Allen’s test and myocardial infarction, postPCI procedure (p value >0.05).There were correlation of probability between positive Allen’s test and dyslipidemia, DM (p value<0.05).Conclusion:1. We need perform Allen’s test indispensably when transradial coronary catheterization, becausethere were positive Allen’s test not small percent.2. There aren’t additional risk with old myocardial infarction and post PCI procedure patients, becausethere weren’t any correlation.3. There were correlation of probability between positive Allen’s test and dyslipidemia, DM. Thereforedoctors should select artery femoralis if patient have dyslipidemia and DM.