[Recurrent syncope of unknown origin. Diagnosis with implantable "loop" recorders].
BACKGROUND
In about a third of cases of recurrent syncope a diagnosis cannot be established despite extensive cardiovascular and neurologic testing. In patients without underlying heart disease the sensitivity of conventional diagnostic testing is low.


METHODS
A 33-year-old male patient underwent implantation of a loop recorder (Reveal) after negative neurological and cardiovascular testing. One month after implantation sinus node arrest could be documented during a presyncope. The patient underwent pacemaker implantation and remains asymptomatic since then.


CONCLUSIONS
In patients with syncope and a negative conventional diagnostic workup the implantable loop recorder is a helpful and cost-effective diagnostic tool.
Sperzel
J
J
Abteilung für Kardiologie, Kerckhoff-Klinik, Bad Nauheim.
Carlsson
J
J
Erdogan
A
A
Ehrlich
W
W
Schulte
B
B
Pitschner
H F
HF
Neuzner
J
J
D000328:Adult; D003937:Diagnosis, Differential; D015716:Electrocardiography, Ambulatory / Q000295:instrumentation*; D006801:Humans; D008297:Male; D019736:Prostheses and Implants; D012008:Recurrence; D012804:Sick Sinus Syndrome / Q000175:diagnosis*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013575:Syncope / Q000209:etiology*