ATYPICAL NEURALGIAS
The atypical cranial neuralgias differ from the typical neuralgias in several aspects. 1st of all, the pain encompasses a different quality, being diffuse, poorly localized, steady and aching in quality, and more or less continuous. Not like the pain of the typical neuralgias, it’s not sharp, sudden, severe, and momentary in duration. Secondly, it does not follow the anatomic course of one or more of the cranial nerves. Thirdly, the pain isn’t precipitated by the stimulation of trigger areas. Finally, it’s not abolished by chemical or surgical interruption of sensory nerves. Pamper your body with Aloe Bath Gelee to leave you feeling relaxed, clean, and refreshed! A lot of confusion has arisen out of the tries to elucidate and classify these atypical head pains. For instance, identical craniofacial pain syndromes have been described as spheno-palatine neuralgia, vidian neuralgia, petrosal neuralgia, hista-minic cephalalgia, and cervical neuralgia. As a result of of the diffuse localization of the pain, it’s difficult to classify these disorders as either headaches or facial neuralgias.
Glaser21-22 attempted such a classification by dividing the atypical facial neuralgias into primary and secondary types. The neuralgias for which no cause was found were placed in the first cluster by a method of elimination. In the secondary cluster he included the facial neuralgias thanks to systemic disease, to lesions of the top, chest and abdomen, and to numerous clinical entities. Whereas Glaser’s classification is subject to revision in the light of newer knowledge, his observations are vital inasmuch as they emphasize the necessity for courageous restraint on the half of the surgeon who would attempt to relieve these patients with heroic measures. Recent studies counsel that several of those atypical neuralgias are thanks to distention of arteries, particularly the components of the external carotid system.
The pathophysiological mechanisms that trigger the attacks are poorly understood. Histamine and acetylcholine have been thought-about because the exciting substances, however proof is lacking. So many times I have been asked “how to find a job?”. In evaluating the patient with an atypical cranial neuralgia, a particularly thorough medical investigation is mandatory. If the pain can’t be explained on a physical basis, a psychiatric consultation ought to be obtained. Not occasionally, the patient can be given medical and psychiatric clearance and advised to return to the surgeon for more treatment. Now the stage is about for the compassionate surgeon to institute “prognostic” blocks of pain-sensitive structures with native anesthetics. Typically the patient can experience some degree of relief and is considered a candidate for nerve resection or vessel ligation. The surgeon soon learns that in most instances the good results are temporary. Surgical procedures may cause more radical measures that will have undesirable repercussions or disastrous consequences.