Heart study asks: is a second look inside arteries worth it?
NCT ID NCT04604197
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This study follows 400 people who had a stent placed in the left main coronary artery. Half get a routine angiogram 6 months later, while the other half have only clinical follow-up. Researchers want to see if the extra imaging reduces the chance of death, heart attack, or stroke over 3 years.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- What this could lead to
- If successful, this could show that routine angiographic follow-up after left main coronary stenting improves long-term outcomes, potentially changing standard care.
- What could go wrong
- This is an observational study, not a randomized trial, so results may not prove cause and effect. The benefit of extra imaging may be small or outweighed by risks of the procedure.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Hospital Clinico Universitario Lozano Blesa
Zaragoza, 50009, Spain
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Hospital Clinico Universitario de Valencia
Valencia, 46010, Spain
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Hospital Clinico Universitario de Valladolid
Valladolid, 47003, Spain
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Hospital Clínico Universitario de Santiago de Compostela
Santiago de Compostela, 15706, Spain
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Hospital Del Mar
Barcelona, 08003, Spain
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Hospital Galdakao-Usansolo
Galdakao, Vizcaya, 48960, Spain
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Hospital General Juan Ramón Jiménez
Huelva, 21005, Spain
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Hospital General Universitario de Albacete
Albacete, 02006, Spain
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Hospital General Universitario de Alicante
Alicante, 03010, Spain
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Hospital Universitari Bellvitge
Barcelona, 08907, Spain
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Hospital Universitari Germans Trias I Pujol
Badalona, Barcelona, 08916, Spain
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Hospital Universitari Vall D'Hebron
Barcelona, 08035, Spain
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Hospital Universitario 12 de Octubre
Madrid, 28041, Spain
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Hospital Universitario Donostia
Donostia / San Sebastian, Gipuzkoa, 20014, Spain
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Hospital Universitario La Paz
Madrid, 28046, Spain
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Hospital Universitario La Princesa
Madrid, 28006, Spain
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Hospital Universitario Lucus Agusti
Lugo, 27003, Spain
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Hospital Universitario Marques de Valdecilla
Santander, 39008, Spain
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Hospital Universitario Miguel Servet
Zaragoza, 50009, Spain
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Hospital Universitario Ramon Y Cajal
Madrid, 28034, Spain
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Hospital Universitario Regional de Malaga
Málaga, Malaga, 29010, Spain
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Hospital Universitario Reina Sofia
Córdoba, 14004, Spain
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Hospital Universitario San Juan de Alicante
Alicante, Spain
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Hospital Universitario Virgen Arrixaca
Murcia, 30120, Spain
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Hospital Universitario Virgen de Las Nieves
Granada, 18014, Spain
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Hospital Universitario de A Coruña
A Coruña, 15006, Spain
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Hospital Universitario de Cabueñes
Gijón, 33394, Spain
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Hospital Universitario de Ciudad Real
Ciudad Real, 13005, Spain
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Hospital Universitario de Cruces
Barakaldo, Bizkaia, 48903, Spain
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Hospital Universitario de León
León, 24071, Spain
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