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Biomedical subjects

G Terrier

Publications and source records attributed to G Terrier.

At least 37 records · Page 2Linked to original sources
PubMed1993

[Effects of isoflurane and halothane on motor evoked potentials in the rabbit].

The effects of isoflurane or halothane on motor evoked potentials (MEPs) were assessed and compared in the rabbit, in order to contribute to devise a rigorous human anaesthetic protocol to be used for monitoring of MEPs in corrective spinal surgery. Ten black adult New Zealand rabbits were anaesthetised twice at a month interval, once with isoflurane and once with halothane. Once a control cortical stimulation had been carried out after the animal had breathed pure oxygen for three minutes, the following concentrations of anaesthetic agent were given for 3 min each: respectively 0.3 vol %, 0.5 vol % and 1 vol % of isoflurane, and 0.5 vol % and 1 vol % of halothane. Cortical stimulation was carried out every minute. The signs of anaesthesia (diameter decrease of the pupil, eye covered by the nictating membrane), muscle relaxation (ears drop) and breathing rate were recorded. MEPs were recorded 1, 2, 3 and 5 minutes after the end of anaesthesia. Isoflurane had a stronger effect on MEPs than halothane. The effect was more pronounced on amplitude than on latency. MEPs remained present whatever the concentration of halothane. In 70% of cases, MEPs, discontinued with isoflurane, more rapidly, more deeply, and for a longer time. Mean latency was more constantly increased in the isoflurane than in the halothane group. The effect of volatile halogenated anaesthetics on mean latency of MEPs seemed to be more delayed than that on amplitude. One should also take into account an individual sensitivity, it is concluded that the interpretation of MEPs during anaesthesia with volatile halogenated agents should be carried out with caution.

Anesthesia, Inhalation↗
PubMed1993

Monitoring of the motor pathway during spinal surgery.

Paraplegia caused by irreversible lesions of the spinal cord is one of the major possible complications after scoliosis surgery. Several monitoring methods have been proposed but none are completely satisfactory. Since 1986 the authors assessed motor pathways during scoliosis surgery, using electrical stimulation of the motor cortex and lower limb muscle recordings (tibialis anterior muscle). Twenty-seven patients were included in this study: 25 with idiopathic scoliosis and 2 with dorsal kyphosis. Recordings in anesthetized patients with hypothermia were performed before and after spinal derotation during the surgical procedure. Magnetic cortical stimulation was carried out in ten awake patients before and after surgery. Reproducible responses were obtained in 22 patients under anesthesia. In eight patients no difference of the latency of the muscle response was detected before and after the correction of the spinal angulation. In 14 patients the increase of latency ranged from 0.4 ms to 5.2 ms. No correlation was found between the slowing of motor conduction and the magnitude of spine correction. No central neurologic complications were seen after surgery. The authors concluded that their study demonstrated that motor pathway assessment in anesthetized patients can be performed at different times during the surgical procedure. This technique should help in the future monitoring spinal function during scoliosis surgery.

Adolescent↗
PubMed1993

Electron-beam therapy in Arndt-Gottron's scleromyxoedema.

We report a patient with Arndt-Gottron's scleromyxoedema whose skin lesions responded to electron-beam therapy. This treatment appears to be effective in improving the cutaneous signs and functional impairment of this disease.

Combined Modality Therapy↗
PubMed1992

[Pyloric stenosis in infants. Contribution of ultrasonography and video-surgery].

Hypertrophic pyloric stenosis is the commonest condition requiring abdominal surgery in infancy. The Fredet-Ramstedt pyloromyotomy gives a very rare morbidity rate as shown by a review of 300 personal cases. The diagnostic value of sonography is gaining significance over contrast roentgenography, a pyloric diameter of more than 14 mm and a muscular thickness of more than 4 mm being required for the diagnosis. Over the last 18 months, we performed extramucosal pyloromyotomies using laparoscopy in 19 infants. This new surgical technique using laparoscopy with precautionary measures for the pneumoperitoneum appears to be very promising and should become a widespread technique in the future.

Gastroesophageal Reflux↗
PubMed1992

[Historical notes on the ethmoid bone].

The intriguing historical exploration of the anatomy of the ethmoid and ethmoidal cells is described. Despite continuing research, the ethmoid remains a puzzling topic.

Anatomy↗
PubMed1991

[Gingival graft].

Explore the source record for details and available documents.

Epithelial Attachment↗
PubMed1991

Extramucosal pyloromyotomy by laparoscopy.

We performed extramucosal pyloromyotomies by laparoscopy in 20 infants presenting with congenital hypertrophic pyloric stenosis. The surgical technique and precautionary measures, the outcome, and the advantages of this original approach are discussed. In the near future, laparoscopic pyloromyotomy is likely to become a widely used technique.

Humans↗
PubMed1991

Extramucosal pylorotomy by laparoscopy.

Extramucosal pylorotomies were performed by laparoscopy in infants with congenital hypertrophic pyloric stenosis. The surgical technique and precautionary measures taken for the pneumoperitoneum are described in these initial 10 cases. The advantages of this original technique are discussed.

Female↗
PubMed1991

[Pyloric stenosis in infants. New surgical approaches].

Pyloromyotomy as described by Fredet and Ramstedt is still widely used for the treatment of infantile hypertrophic pyloric stenosis, with a very low mortality rate. Three hundred case-records of patients treated using this technique were reviewed. Pyloromyotomy can benefit from the use of videosurgical methods. The creation of a pneumoperitoneum requires special precautions in infants. Nineteen infants were treated using laparoscopic Fredet-Ramstedt pyloromyotomy, a technique which can be expected to gain widespread acceptance during the next few years.

Female↗
PubMed1991

[Spinal anesthesia in ambulatory anesthesia of the infant].

Two hundred spinal anesthesias have been performed in infants for abdominal surgery, thirty of which for day surgery. Intrathecal injection of 0.5% bupivacaine solution is realised in good conditions, sometimes with narcosis complementation (ketamine or halothane). Motor block takes place without delay and lasts for an average of 95 +/- 25 minutes. There is no hemodynamic disturbance. This technic could be used in day surgery by reason of quick recovery.

Ambulatory Surgical Procedures↗