Arrhythmias Unit
HLA Moncloa University Hospital
ASISA Group
Experts in Cryoablation of the Atrial Fibrillation
About us
The Arrhythmias Unit and Cardiac Electrophysiology Lab, led by Dr Jesus Paylos is a national reference centre for treatment and investigation of the atrial fibrillation and other heart rhythm related conditions.
Pioneers
We are pioneers in Spain in the definitive treatment of atrial fibrillation, using cryoablation since 2008 and published our first scientific results in Spanish Journal of Cardiology in 2009.
Results
To date, the unit has performed 4.000 cryo and radiofrequency ablations, with 98% success rate, no major complications (zero mortality) and very low morbidity (0.9%). In October 2018, we presented to the Spanish scientific community during the Congress of Cardiovascular Diseases in Seville, and included in the Spanish Journal of Cardiology, the largest series of patients treated in Spain with this technique, and the longest follow-up of 10 years, with a success rate of 98%, free of arrhythmia and without medication.
Personalised treatment
We study the specific characteristics and conditions of each patient, designing a course of treatment according to their specific needs.
Quality management
HLA Moncloa University Hospital is the largest healthcare facility in HLA Hospital Group, located in the capital of Spain. It has a total area of 28,000 m2 and 234 rooms, 12 suites and 7 VIP suites, as well as a surgical block equipped with 12 general and 2 ophthalmological operating theatres, a modern ICU with 13 boxes and an outpatient clinic.
An experienced team

Dr. Jesús Paylos
MD PhD · Cardiology · Electrophysiology
Director of the Cardiac Electrophysiology Laboratory and Arrhythmias and Syncope Unit, HLA Moncloa University Hospital, Madrid.
Cristina Mesonero de la Peña
Operating Room Nurse
Lorena de Bordeje Cordero
Operating Room Nurse
Nuria Cabrera García
Operating Room CNA
Lorena Gutiérrez Gómez
Operating Room Nurse
Mónica Jimenez Gonzalez
Operating Room CNA
Clara Ferrero Serrano
Operating Room Nurse
Isabel Delgado Malo
Operating Room Nurse
Procedures
1994 - Present
Procedures performed by the Arrhythmias Unit Electrophysiology Laboratory

4.499
EP studies

4.000
RF and cryo ablations

2.069
Pacemakers inserted

939
Defibrillators inserted

117
Cardiac resynchronization therapy pacemakers inserted

3.621
Tilt-table tests performed
Results
1994 - Present
Procedures performed by the Arrhythmias Unit Electrophysiology Laboratory

0%
Mortality

0.8%
Morbidity

98%
Success rate
Publications
LEÍDA EN MADRID, UNIVERSIDAD COMPLUTENSE EL 28 DE NOVIEMBRE DE 1990.
CALIFICACION: SOBRESALIENTE “CUM LAUDE”
See thesis
Paylos J.M.
PROMEDIADO DE SEÑALES DEL ELECTROCARDIOGRAMA DE ALTA RESOLUCIÓN. POTENCIALES TARDÍOS VENTRICULARES.
Revista Española de Cardiología. 1990; 43: 591 – 603
Paylos J.M.
SURGICAL TERMINATION OF INCESSANT SUPRA-VENTRICULAR TACHYCARDIA IN A HYDROPIC FETUS.
European Heart Journal, 1991, Vol 12 (Abstr, Suppl): 2026, 370.
Paylos J.M.
De la Fuente P.
Olaizola I.
SPECTRAL TEMPORAL MAPPING OF THE P WAVE IN SUBJECTS WITH AND WITHOUT PAROXYSMAL ATRIAL FIBRILLATION.
Journal of the American College of Cardiology. Vol. 21 (Suppl.) No 2.181-A-1993.
Paylos J.M.
Cordero B.
López de Sá E
Sáenz de la Calzada
TURBULENCIA DEL ESPECTRO EN RELACIÓN CON EL FRENTE DE ACTIVACIÓN VENTRICULAR A TRAVÉS DE LAS VÍAS ACCESORIAS EN EL SÍNDROME DE WOLFF-PARKINSON-WHITE.
Revista Española de Cardiología 1992, Vol. 45 (Suppl 1): 45, 123.
Paylos J.M.
López de Sá E
Cordero B.
Martínez J.M
6th European Congress on Intensive Care Medicine. Barcelona, Spain, October 1992.
Paylos J.M.
López de Sá E
Cordero B.
Martínez J.M
UTILIDAD DEL REGISTRADOR IMPLANTABLE SUBCUTÁNEO EN EL DIAGNÓSTICO DEL SÍNCOPE RECURRENTE DE ETIOLOGÍA NO FILIADA EN PACIENTES SIN CARDIOPATÍA ESTRUCTURAL CON TEST DE TABLA BASCULANTE Y ESTUDIO ELECTROFISIOLÓGICO NEGATIVOS.
Revista Española de Cardiología 2001, Vol. 54 (No 4): 431-442
Paylos J.M.
Aguilar Torres R.J.
AISLAMIENTO CIRCUNFERENCIAL COMPLETO DE VENAS PULMONARES POR CRIOABLACIÓN CON CATÉTER-BALÓN EN PACIENTES CON FIBRILACIÓN AURICULAR PAROXÍSTICA.
Revista Española de Cardiología. 2009;62(11):1326-31
Paylos J.M.
Robert H. Hoyt
Clara Ferrero
Carmen Berrio
Revista Española de Cardiología. 2009;62 Supl. 3. 1-226;143.
Paylos J.M.
Nuria Cabrera
Adriana Espejo
Clara Ferrero
GADOLINIUM DELAYED-ENHANCEMENT MRI TO ASSESS THE EXTENSION OF RESIDUAL CRYO- BALLOON CATHETER INDUCED LESION AT THE LEFT-ATRIUM-PV JUNCTION LEVEL IN PATIENTS TREATED FOR PAROXYSMAL ATRIAL FIBRILLATION.
Heart Rhythm Vol.7.No 5, P03-36.(Suppl.)2010.
Paylos J.M.
Nuria Cabrera
Adriana Espejo
Clara Ferrero
Revista Española de Cardiología. 2010; 63 Extraordinario 3. 124 (P.856)
Paylos J.M.
Miguel A. Quiñones
Isabel Delgado
Clara Ferrero
Revista Española de Cardiología. 2010; 63 Extraordinario 3. 125 (P.857).
Paylos J.M.
Clara Ferrero
Arancha Rey
Roberto Molezum
Journal of Cardiovascular Electrophysiology Vol.21 Supl.1 2011
Paylos J.M.
COMPLEMENTARY VALUE OF ADENOSINE AND RADIOFREQUENCY IN THE CRYO-BALLOON ISOLATION OF PULMONARY VEINS FOR PAROXYSMAL ATRIAL FIBRILLATION.
Heart Rhythm Vol.8.No 5S, P05-132.(Suppl.)2011
Paylos J.M.
Clara Ferrero
Isabel Delgado
Roberto Ramirez
Revista Española de Cardiología. 2011; 64 Extraordinario 3. 208 (P.848)
Paylos J.M.
Isabel Delgado
Araceli Morales
Clara Ferrero
Revista Española de Cardiología 2012; 65 Extraordinario 3. 352 (P. 6001-430).
Paylos J.M.
Miguel A. Gómez Marino
Araceli Morales
Clara Ferrero
Rev Esp Cardiol. 2013; 66 Supl. 1:170 (4022-5).
Paylos J.M.
Miguel A. Gómez Marino
Araceli Morales
Clara Ferrero
Journal of Atrial Fibrillation. Oct 2013 Special Issue. (P75-76).
Paylos J.M.
Clara Ferrero
J.R. Conesa
M. Rayo
Journal of Atrial Fibrillation. Oct 2013 Special Issue. (P77).
Paylos J.M.
Clara Ferrero
J.R. Conesa
Araceli Morales
Rev Esp Cardiol. 2014; 67 Supl. 1:350 (6002-14).
Paylos J.M.
Clara Ferrero
Miguel A. Gómez Marino
Marisol Paradela
Journal of Atrial Fibrillation. Oct 2015 Special Issue.
Paylos J.M.
Clara Ferrero
L. Azcona
Araceli Morales
Journal of Atrial Fibrillation. Oct 2015 Special Issue.
Paylos J.M.
L. Azcona
Clara Ferrero
Araceli Morales
Revista Española de Cardiología 2015;68 Supl 1:546
Paylos J.M.
Clara Ferrero
L. Azcona
Araceli Morales
Journal of Atrial Fibrillation 2016 8:6 (18-24)
Paylos J.M.
PhD
Luis Azcona MD
Lourdes Lacal MD
Octavio Rodríguez MD
Journal of Atrial Fibrillation 2016 8:6 (6-17)
Paylos J.M.
PhD. Aracelis Morales MD
Luis Azcona MD
Marisol Paradela MD
Revista Española de Cardiología 2017; 70 (Supl. 1):633
Paylos J.M.
Clara Ferrero
Rodríguez O.
Journal of American College of Cardiology: Clinical Electrophysiology. Volume 3, Issue 10 Supplement, October 2017
Paylos J.M.
Clara Ferrero
Rodríguez O.
J.R. Conesa
Rev. Esp. Cardiol. 2018; 71 (Supl. 1) 309
Paylos J.M.
Clara Ferrero
J.R. Conesa
Lacal L.
Hessein Y.
Valencia O.
Revista Española de Cardiología – 2019;72(Supl 1):587
Paylos J.M.
Clara Ferrero
Hessein Y.
Revista Española de Cardiología – 2019;72(Supl 1):588
Paylos J.M.
Clara Ferrero
Hessein Y.
J Interventional Cardiac Electrophysiology (2020) 57:168
Paylos J.M.
Clara Ferrero
Hessein Y.
J Interventional Cardiac Electrophysiology (2020) 57:168-169
Paylos J.M.
Clara Ferrero
Hessein Y.
Rev Esp Cardiol. 2020;73(Supl 1):416
Paylos J.M.
Clara Ferrero
Elena Mejía
Rev Esp Cardiol. 2020;73(Supl 1):425
Paylos J.M.
Clara Ferrero
Elena Mejía
Testimonials
Mr. Antón Carreño
Cryoablation patient
Mr. Alfonso Pinilla
Cryoablation patient
Quality Care HLA Moncloa University Hospital










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