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09 August 2020: Articles

From Myocardial Infarction with Non-Obstructive Coronary Arteries (MINOCA) to Chronic Coronary Syndrome: Clinical Diagnostic Use of Laser Doppler Flowmetry in Coronary Microvascular Dysfunction

Unusual clinical course, Challenging differential diagnosis, Unusual setting of medical care, Educational Purpose (only if useful for a systematic review or synthesis)

Kristina Selthofer-Relatić A* , Marko Stupin B , Ines Drenjančević C , Ivica Bošnjak C

DOI: 10.12659/AJCR.924984

Am J Case Rep 2020; 21:e924984

Figure 4. Forearm skin microvascular post-occlusive reactive hyperemia (PORH) assessed by laser Doppler flowmetry (LDF) in case (A) and healthy control (B). Microvascular blood flow is expressed in arbitrary perfusion units (PU), and final blood flow values for baseline (B), occlusion (O), and reperfusion (R) were obtained by calculating the area under the curve for blood flow values averaged over a specific time period (1 min) (AUC B, AUC O, AUC R). Final PORH is expressed as the difference between percentage of flow change between reperfusion [R% = (AUC R/AUC B)×100] and occlusion [O%=(AUC O/AUC B)×100] in relation to baseline (R–O%). R-O% in case patient was 65% (A), and in healthy control was 235% (B), indicating 3.6 times better skin microvascular reactivity in response to vascular occlusion in the healthy control compared to the case patient.

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American Journal of Case Reports eISSN: 1941-5923
American Journal of Case Reports eISSN: 1941-5923