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Correspondence
Role of nitric oxide in vasovagal syncope. A puzzle solved but there could be another piece
  1. Manlio F Márquez1,
  2. Ricardo Allende2,
  3. Ricardo Márquez-Velasco3,
  4. Antonio G Hermosillo1
  1. 1 Department of Electrocardiography and Electrophysiology, Instituto Nacional de Cardiologia Ignacio Chavez, Mexico City, Mexico
  2. 2 Department of Cardiology, Hospital de Especialidades Médicas de la Salud, San Luis Potosí, Mexico
  3. 3 Department of Immunology, Instituto Nacional de Cardiologia, Mexico City, Mexico
  1. Correspondence to Dr Manlio F Márquez, Department of Electrocardiography and Electrophysiology, Instituto Nacional de Cardiologia Ignacio Chavez, Mexico City 14080, Mexico; manlio.marquez{at}gmail.com

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To the Editor

Stewart et al 1 reported a very ingenious study that finally demonstrated the previously controversial role of nitric oxide (NO) in vasovagal syncope (VVS). They used a different approach that certainly explains that they have obtained positive findings. They measured the effect on NO through an inhibitor of …

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Footnotes

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; internally peer reviewed.