Article

Images in cardiology

REC Interv Cardiol. 2020;2:302-303

Calcified plaques in the radial artery: OCT insight

OCT en placas calcificadas de arteria radial

Eduardo Arroyo-Úcar,a,b, Francisco Torres Saura,a,b Romero Vazquiánez,a,b Gonzalo Pizarro Sánchez,c,d,e,f Raúl Moreno,g and Borja Ibañezc,d,h

aUnidad de Hemodinámica, Servicio de Cardiología, Hospital Universitario del Vinalopó, Elche, Alicante, Spain

bUnidad de Hemodinámica, Servicio de Cardiología, Hospital Universitario de Torrevieja, Alicante, Spain

cCentro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain

dCentro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain

eServicio de Cardiología, Complejo Hospitalario Ruber Juan Bravo, Madrid, Spain

fDepartamento de Cardiología, Facultad de Medicina, Universidad Europea de Madrid (UEM), Madrid, Spain

gUnidad de Hemodinámica, Servicio de Cardiología, Hospital Universitario la Paz, Madrid, Spain

hUnidad de Hemodinámica, Servicio de Cardiología, Hospital Universitario IIS-Fundación Jiménez Díaz, Madrid, Spain

The calcified nodule has been established as the least common underlying substrate in the acute coronary syndrome; however calcium can be widely present in other acute-common scenarios. In this setting, the optical coherence tomography (OCT) study has identified 3 different types of calcification according to morphology. Former studies have already documented calcified nodules in patients with peripheral artery disease; however the different patterns that exist beyond coronary arteries remain unknown.

An 80-year-old patient was referred for coronary angiography following systolic dysfunction. The coronary angiography performed through right radial approach showed a severely calcified vessel (mid portion of the left anterior descending artery) and mitral and aortic calcification. The OCT pullback performed with 6 mL of contrast at 3 mm/seg through the radial artery removed 4 cm of the radial sheath and showed multiple calcified plaques (mid portion of the artery) defined by the presence of superficial, well-established, low-backscattering and heterogeneous regions (video 1 of the supplementary data). The simultaneous angiography co-registration confirmed the presence of ulnar artery occlusion. Three patterns of superficial calcification were identified:

  • – Calcified protrusion (protruding calcified mass without eruptive nodules [figure 1A,B]).
  • – Eruptive calcified nodules (cluster of small calcified nodules protruding into the lumen [figure 1C,D]).
  • – Sheet-like superficial calcified plate (without superficial coating disruption and minimal laminar protrusion [figure 1E,F]).

Figure 1.

The types and causes of peripheral calcification described included calcified atherosclerosis, calcific medial vasculopathy, elastocalcinosis, and calcific uremic arteriolopathy. This is the first time that an OCT study describes calcification patterns of atherosclerotic plaques in peripheral artery disease. As previously defined for calcified coronary culprit lesions, 3 types could be identified. The coexistence of ulnar artery occlusion suggests causality, but further studies will be needed to clarify its pathological meaning in the setting of the acute peripheral syndrome.

CONFLICTS OF INTEREST

R. Moreno Gómez is associate editor of REC: Interventional Cardiology. The journal’s editorial procedure to ensure impartial handling of the manuscript has been followed.

SUPPLEMENTARY DATA


Video 1. Arroyo-Úcar E. DOI: 10.24875/RECICE.M20000094

Corresponding author: Servicio de Cardiología, Hospital de Vinalopó, Tonico Sansano Mora 14, 03293 Elche, Alicante, Spain.
E-mail address: earroyoucar@gmail.com (E. Arroyo-Úcar).

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