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Abstract

Apparatus for treatment is provided, including one or more electrodes, configured to be applied to a site of a subject, and adverse cerebrovascular condition treatment functionality. The functionality comprises a control unit configured to drive the one or more electrodes to apply electrical stimulation to the site during a plurality of stimulation periods which includes at least first and last stimulation periods, set an inter-period interval between initiation of the first stimulation period and initiation of the last stimulation period to be at least 24 hours, and configure the stimulation during the first and last stimulation periods to induce at least one neuroprotective occurrence selected from the group consisting of: an increase in cerebral blood flow (CBF) of the subject, and a release of one or more neuroprotective substances. The site is selected from the group consisting of: a sphenopalatine ganglion (SPG), a greater palatine nerve, a lesser palatine nerve, a sphenopalatine nerve, a communicating branch between a maxillary nerve and an SPG, an otic ganglion, an afferent fiber going into the otic ganglion, an efferent fiber going out of the otic ganglion, an infraorbital nerve, a vidian nerve, a greater superficial petrosal nerve, and a lesser deep petrosal nerve. Additional embodiments are also described.

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First Claim