Cefaleas primarias.pptx

30 de May de 2023
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
Cefaleas primarias.pptx
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Cefaleas primarias.pptx

Notas do Editor

  1. Inicio súbito -> hemorragia subaracnoidea, apoplejía pituitaria, sangrado de algún tumor o MAV -> neuroimagen Aumento en el patrón de la cefalea -> lesión estructural, hematoma subdural, abuso de medicamentos -> neuroimagen Cáncer -> Meningitis, absceso, metástasis Enf. sistémica -> meningitis, encefalitis, Lyme Cefalea por esfuerzo -> Hemorragia subaracnoidea, lesión ocupativa. Cefalea durante parto -> Trombosis venosa cortical, disección carotídea, apoplejía pituitaria
  2. Nicotine has no triggering or worsening effects on cluster headache attacks, and the majority of patients with cluster headache smoke. Alcohol or other vasodilators such as histamine or nitroglycerine can trigger attacks, probably as a result of susceptibility due to unknown genetic mutations, which might explain the familial presentation in some cases. However, that the attacks can be triggered by specific substances is only observed in patients with chronic or episodic cluster headache while they are in a bout—ie, in the active phase—which for most patients occurs in a seasonal pattern. Exogenous factors (eg, light exposure) or enogenous factors (eg, mechanisms affecting circadian and circannual rhythms) can influence the hypothalamus and thereby the likelihood of creating a permissive state that could create the basis for the generation of individual attacks. This hypothalamic dysfunction can affect parasympathetic and trigeminal communication, ultimately inducing trigeminal pain.
  3. In patients with cluster headache, autonomic symptoms are thought to be mediated through the trigeminal-autonomic reflex. The trigeminal nucleus caudalis (TNC) is connected to the superior salivatory nucleus (SSN), from which parasympathetic efferent fibres of the facial nerve arise. During the trigeminalautonomic reflex, activation of the trigeminal nerve is thought to lead to activation of parasympathetic efferents, producing autonomic symptoms such as lacrimation, rhinorrhoea and nasal congestion. These parasympathetic efferents originate in the SSN synapse with postganglionic fibres that innervate the dural vessels in the sphenopalatine ganglion (SPG), resulting in vasodilation. C1, C1 cervical nerve; C2, C2 cervical nerve; TCC, trigeminocervical complex.