Published: 18 October, 2017 | Volume 1 - Issue 1 | Pages: 001-005
Pain is a complex phenomenon which is unpleasant. Different cosmetic procedures are associated with varying degrees of pain. Various modalities are adopted to decrease the severity of pain. The commonly used is the administration of analgesics (opioid or non-steroidal). The pain is carried to the brain by pain fibres. There are various theories about the pain [1,2]. Many attempts have been undertaken to find the modalities which decrease the perception of pain by the brain. The famous ‘gate theory’ was proposed in 1965 by Melzack et al. . It was proposed that the pain experience can be reduced by the activation of nerve fibres that conduct non-toxic stimuli. The theory suggested that the stimulation of larger diameter fibres (A-beta) can close a neural ‘gate’ to nocioceptive signals and can reduce the perception of the pain. The ‘gate’ is proposed to lie within the spinal cord/brainstem and inhibits the transmission of nocioceptive action potentials to higher centres in the central nervous system . The “post-synaptic inhibitory and fascilitatory mechanism” provide a basis for explaining the pain reducing strategies such as rubbing the painful area or applying cold or vibration to decrease the perception of the pain. Various topical irritants used in a few ‘magic’ creams also work on the same principle.
Every effort is made to decrease the perception of pain in cosmetic surgery procedures especially hair restoration. A surgeon who can perform a hair restoration without pain has an edge over his competitors. The potential patients undergoing hair restoration are very anxious about the pain level to be perceived during the procedure. Vibration anaesthesia is becoming increasing used in hair restoration to decrease pain perception. Various recent studies have demonstrated the effective use if vibrations to decrease the pain of local anaesthesia injections [5,7]. The pain of the injection has basically two components; the first is the actual needle prick and second is the discomfort felt due to the tissue stretch by the local anaesthetic drugs .
The following study was conducted to compare the pain level of ring block in the patients undergoing hair restoration with and without the use of vibration