<prompt> Coronary steal phenomenon is seen with?VerapamilDiltiazemNicorandilDipyridamole  <response>: Ans. d Dipyridamole Ref. KDT, Pharmacology, 6thpg.534DIPYRIDAMOLE dilates resistant coronary vessels and diverts blood from ischemic zone to non-ischemic zone leading to coronary steal phenomenon. In patients with suspected ischemic heart disease, Dipyridamole or adenosine can be given to create a coronary steal by temporarily increasing flow in nondiseased segments of the coronary vasculature at the expense of diseased segments. Alternatively, a graded incremental infusion of dobutamlne may be administered to increase MV02. The development of a transient perfusion defect with a tracer such as radioactive thallium or 99rnTc sestamibi is used to detect myocardial ischemia.Educational points: Dipyridamole, Adenosine,Isoflurane Coronary steal phenomenon 1st part of subclavian artery obstruction Subclavian steal phenomenon it is most common site of steosis Cord A-Malformation Spinal cord steal syndrome New Drugs in Angina Trimetazidine and Ronalazine Inhibit fatty acid oxidation pathway Dipyridamole Antianginal having anti-platelet action Coronary steal Ranolazine Antianginal which blocks I Na current channel Cilostazol phosphodiesterase inhibitor Antihypertensive drug with Anti-platelet aggregator vasodilator effect 