To send content items to your account,
please confirm that you agree to abide by our usage policies.
If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.
Find out more about sending content to .
To send content items to your Kindle, first ensure firstname.lastname@example.org
is added to your Approved Personal Document E-mail List under your Personal Document Settings
on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part
of your Kindle email address below.
Find out more about sending to your Kindle.
Note you can select to send to either the @free.kindle.com or @kindle.com variations.
‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
This chapter describes the clinical characteristics of syncope and its distinction from generalized tonic-clonic seizures, which cause the most difficulties in daily clinical practice. The high variability of frequencies at which convulsions in syncope were observed is explained by their highly variable presentation. The most important criterion to differentiate syncopal and epileptic convulsions is their specific phenomenology. Presyncope is the prodromal stage of syncope in which there is only a less pronounced hypoperfusion of the brain and therefore no complete loss of consciousness. Syncope can also appear after eating a carbohydrate-rich meal, particularly in elderly patients. Syncope associated with migraine is particularly frequent in basilar migraine. This form of migraine occurs mostly in adolescent girls and young women. The initial evaluation of a patient presenting after loss of consciousness includes a thorough history, a physical examination, supine and upright measurement of blood pressure and pulse rate, and an electrocardiogram (ECG).