Subject has been diagnosed with symptomatic paroxysmal atrial fibrillation as defined above and at least two symptomatic episodes in the last six months prior to inclusion.
At least one episode of AF must be documented during the prior year by any kind of ECG recording.
Subject has structural normal heart with an LVEF = 50%, thickness of the inter-ventricular septum =12 mm and left atrium diameters (short axis) < 46 mm obtained by transthoracic echocardiography.
Subject has normal ECG parameters (QRS width in the 12 channel surface ECG =120 ms, QTc - interval < 440 ms, PQ - interval = 210 ms; all parameters should be measured at sinus rhythm).
Subject is at least 18 and not older than 75years old.
Subject is able and willing to give informed consent.

NCT01803438_inc_T1
Condition
paroxysmal atrial fibrillation
NCT01803438_inc_T2
Qualifier
symptomatic
NCT01803438_inc_T3
Multiplier
at least two
NCT01803438_inc_T4
Condition
episodes
NCT01803438_inc_T5
Qualifier
symptomatic
NCT01803438_inc_T6
Temporal
last six months prior to inclusion
NCT01803438_inc_T7
Reference_point
inclusion
NCT01803438_inc_T8
Multiplier
At least one
NCT01803438_inc_T9
Condition
episode
NCT01803438_inc_T10
Condition
AF
NCT01803438_inc_T11
Temporal
prior year
NCT01803438_inc_T12
Measurement
ECG
NCT01803438_inc_T13
Condition
heart
NCT01803438_inc_T14
Qualifier
normal
NCT01803438_inc_T15
Qualifier
structural
NCT01803438_inc_T16
Measurement
LVEF
NCT01803438_inc_T17
Value
= 50%,
NCT01803438_inc_T18
Measurement
thickness of the inter-ventricular septum
NCT01803438_inc_T19
Value
=12 mm
NCT01803438_inc_T20
Measurement
left atrium diameters
NCT01803438_inc_T21
Value
< 46 mm
NCT01803438_inc_T22
Measurement
short axis
NCT01803438_inc_T23
Procedure
transthoracic echocardiography
NCT01803438_inc_T24
Scope
LVEF = 50%, thickness of the inter-ventricular septum =12 mm and left atrium diameters (short axis) < 46 mm
NCT01803438_inc_T25
Procedure
ECG
NCT01803438_inc_T26
Value
normal
NCT01803438_inc_T27
Measurement
QRS width
NCT01803438_inc_T28
Qualifier
12 channel surface ECG
NCT01803438_inc_T29
Value
=120 ms
NCT01803438_inc_T30
Measurement
QTc - interval
NCT01803438_inc_T31
Value
< 440 ms
NCT01803438_inc_T32
Measurement
PQ - interval
NCT01803438_inc_T33
Value
= 210 ms
NCT01803438_inc_T34
Condition
sinus rhythm
NCT01803438_inc_T35
Scope
QRS width in the 12 channel surface ECG =120 ms, QTc - interval < 440 ms, PQ - interval = 210 ms; all parameters should be measured at sinus rhythm
NCT01803438_inc_T36
Person
old
NCT01803438_inc_T37
Value
at least 18 and not older than 75years