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At least 19 recordsLinked to original sources
PubMed1978

[Anterior and posterior medullary analgesic stimulation, using a percutaneous implantation technic].

The technique of percutaneous implantation of a pain-relieving stimulator reduces the surgical procedure considerably. This advantage is, however, lessened by the absence of precision in placing epidural electrodes, and by the risk of their later displacement leading to inadequate stimulation. To reduce this disadvantage the authors suggest a technique that is a modification of the classical open procedure: it is particularly suitable for implantation at the cervico-dorsal junction. In 12 patients treated by percutaneous implantation, 5 received, from epidural electrodes, an anterior medullary electrical stimulation which caused analgesia without paraesthesiae in the painful ares. The results, however, do not justify a conclusion that anterior medullary stimulation is better than posterior column stimulation.

Adult↗
PubMed1979

Transcutaneous electrical nerve stimulation and the reaction to experimental pain in human subjects.

The effect of peripheral transcutaneous electrical nerve stimulation (TENS) on the reaction to experimental pain in human volunteers has been assessed. Placebo stimulation and electrical stimulation at moderate intensities failed to modify the response to the pain produced by conducted thermal stimuli. TENS at very high intensities did however elevate both the thermal pain threshold and the tolerance temperature. TENS at moderate intensities failed completely to alter the response to graded mechanical stimuli. The subjective pain assessment and the maximum pain tolerance produced by ischaemic pain after a submaximal effort tourniquet test were significantly modified by peripheral electrical stimulation at non-noxious intensities. The response to experimental pain can therefore be altered in man by peripheral electrical stimulation in a manner partly dependent on the sensory modality used for producing the experimental pain and on the intensity of the electrical stimulation.

Adult↗
PubMed1979

Local analgesia by percutaneous electrical stimulation of sensory nerves.

Experimental C-fiber pain caused by radiant heat was applied to the skin area supplied by the left sural nerve of 20 subjects. Percutaneous electrical stimulation (PNS) was performed on the left sural nerve, the left superficial peroneal nerve and the right superficial radial nerve. Stimulation frequencies were: 3, 50, 100, 300, 500 and 1000 Hz. The analgesia resulting at the different stimulation sites was recorded according to a preset scale of estimation. Without considering the influence of the different frequencies, the best analgesic effects were reached if noxious heating and PNS were both performed on the left sural nerve; the anatomical conditions prevented us from distinguishing between the effects of possible peripheral blockade or spinal modification of pain. PNS of the superficial peroneal nerve seems to indicate spinal, possibly polysegmental, interactions between C-fiber pain and electrical stimulation of thick myelinated fibers. However, long loop effects may also play a part in local analgesia as demonstrated by PNS of the right radial nerve.

Adult↗
PubMed1979

Phantom urinary bladder pain--case report.

Phantom urinary phenomena are a relatively rare disease entity. Literature search has revealed only one case following cystectomy, seven cases following spinal cord injury and several other cases in hemodialysis patients. This report presents a case of painful phantom bladder following cystectomy for chronic kidney and urinary tract infection. Treatment was directed toward sensory hyperstimulation for suppression of the subjective experience of the painful phantom. Lumbar sympathetic blocks and transcutaneous electrical stimulation were used. Competent coping mechanisms were increased through relaxation training and assertiveness training to deal with a medical problem which has no standard solution. The patient's response to the Comprehensive Pain Control Program was excellent with an estimated 75% reduction in painful phantom perceptions. A brief discussion of the medical literature on the subject is presented.

Adult↗
PubMed1979

Observations on fast axoplasmic transport in peripheral nerve following repetitive electrical stimulation.

In a series of 13 cats the effect of electrical stimulation of peripheral nerve on the mechanism of fast axoplasmic transport was studied. Electrical stimulation was used for varying time periods at parameters reported in the range of those used to produce electroanalgesia in man. Our results indicate that at these parameters, electrical stimulation produced no effect on this important aspect of nerve function, and, therefore, our work lends support to the safety of these devices in pain states.

Animals↗
PubMed1979

The influence of electro-acupuncture on naloxone-induced morphine withdrawal. II. Elevation of immunoassayable beta-endorphin activity in the brain but not the blood.

The effect of electro-acupuncture in the treatment of naloxone precipitated morphine withdrawal in mice was studied. Thirty minutes of acupuncture was enough to suppress withdrawal behaviors by more than 60%. Concomitant to the decrease of withdrawal behavior, there was a significant increase of brain beta-endorphin level in the acupunctured animals. Plasma beta-endorphin level of the treated and untreated group was not significantly different.

Acupuncture Therapy↗
PubMed1979

The effects of stimulation of ear acupuncture points on the body's pain threshold.

Six ear acupuncture points, one non-acupuncture ear point, and the body locus Ho-Ku (LI-4) were electrically stimulated in order to compare the effects of stimulation on the body's pain threshold at selected loci on various points on the body by measurement with a radiation heat-type Pain Meter on 5 subjects. The ear points, with the exception of the non-acupuncture ear point, were found to be effective even in peripheral body regions in varying degrees. Ear stimulation did not increase the threshold as rapidly as Ho-Ku. In all cases where the pain threshold was raised, the effect persisted after electrical stimulation had stopped.

Acupuncture Therapy↗
PubMed1977

Effects of electroanesthesia and a phenothiazine tranquilizer on thermoregulation in the sheep.

The effects of giving propiopromazine alone and of electroanesthesia-propiopromazine treatment on thermoregulation (body temperature regulation) were studied in 3 sheep at ambient temperatures of 5, 25, and 35 C. Measures of thermoregulation during a 120-minute treatment and 120-treatment recovery period included rectal temperature, respiratory frequency, respiratory evaporative heat loss, metabolic heat production, multiple skin temperatures, and shivering. During cold exposure (5 C), both the propiopromazine administration and the electroanesthesia-propiopromazine treatment resulted in hypothermia which was attributed to increased peripheral and respiratory heat losses, a transient inhibition of shivering thermogenesis, and a reduction in metabolic heat production. At 35 C ambient temperature, both resulted in hyperthermia caused principally by a reduction in respiratory evaporative heat loss. The effects of electroanesthesia-propiopromazine treatment on thermoregulation appeared to be additive at both the cold (5 C) and the hot (35 C) environments, in that simultaneous administration resulted in a more profound thermoregulatory impairment. Nevertheless, shifts in body temperature during electroanesthesia are partly attributable to phenothiazine premedication.

Animals↗