Table 7: Investigation of Vasovagal Syncope According to the Heart Rhythm Society.

Recommendation	CoR	LoE
Tilt table testing can be useful for the investigation of patients with suspected vasovagal syncope who lack a confident diagnosis after initial assessment.	IIa	B-NR
Tilt table testing is reasonable for distinguishing convulsive syncope from epilepsy; to establish a diagnosis of pseudosyncope; and in patients with suspected vasovagal syncope but without clear diagnostic features.	IIa	B-NR
Tilt table testing is not recommended for predicting the response to specific medical treatments for vasovagal syncope.	III	B-R
Implantable loop recorders can be useful in the investigation of older patients with infrequently recurrent and troublesome syncope who lack a clear diagnosis and are at low risk of a fatal outcome.	IIa	B-R

CoR = class of recommendation; LoE = level of evidence.[1]