1
|
Strange B, Treu S, Barcia J, Diaz CT, Rosa JG, Nombela C, Pineda J, Torres D, Kunz L, Hellerstedt R, Avecillas-Chasin J, Lara M, Navas M, Galarza A, Garcia J, Oliviero A, Seijo F, Horn A, Li N, Axmacher N, Canals S, Reneses B, Bierbrauer A. Deep-brain stimulation of the human nucleus accumbens-medial septum enhances memory formation. Res Sq 2023:rs.3.rs-3476665. [PMID: 38045279 PMCID: PMC10690315 DOI: 10.21203/rs.3.rs-3476665/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Deep-brain stimulation (DBS) is a potential novel treatment for memory dysfunction. Current attempts to enhance memory focus on stimulating human hippocampus or entorhinal cortex. However, an alternative strategy is to stimulate brain areas providing modulatory inputs to medial temporal memory-related structures, such as the nucleus accumbens (NAc), which is implicated in enhancing episodic memory encoding. Here, we show that NAc-DBS improves episodic and spatial memory in psychiatric patients. During stimulation, NAc-DBS increased the probability that infrequent (oddball) pictures would be subsequently recollected, relative to periods off stimulation. In a second experiment, NAc-DBS improved performance in a virtual path-integration task. An optimal electrode localization analysis revealed a locus spanning postero-medio-dorsal NAc and medial septum predictive of memory improvement across both tasks. Patient structural connectivity analyses, as well as NAc-DBS-evoked hemodynamic responses in a rat model, converge on a central role for NAc in a hippocampal-mesolimbic circuit regulating encoding into long-term memory. Thus, short-lived, phasic NAc electrical stimulation dynamically improved memory, establishing a critical on-line role for human NAc in episodic memory and providing an empirical basis for considering NAc-DBS in patients with loss of memory function.
Collapse
|
2
|
Barbe MT, Barthel C, Chen L, Van Dyck N, Brücke T, Seijo F, San Martin ES, Haegelen C, Verin M, Amarell M, Gill S, Whone A, Porta M, Servello D, Fink GR, Alesch F, Bloem BR, Timmermann L. Subthalamic nucleus deep brain stimulation reduces freezing of gait subtypes and patterns in Parkinson's disease. Brain Stimul 2018; 11:1404-1406. [PMID: 30174201 DOI: 10.1016/j.brs.2018.08.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 08/20/2018] [Indexed: 10/28/2022] Open
Affiliation(s)
| | - Claudia Barthel
- Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Lilly Chen
- Boston Scientific Corporation, Valencia, CA, United States
| | - Nic Van Dyck
- Boston Scientific Corporation, Valencia, CA, United States
| | | | | | | | | | - Marc Verin
- CHU de Rennes-Pontchaillou, Rennes, France
| | | | - Steve Gill
- Frenchay Hospital, Bristol, United Kingdom
| | - Alan Whone
- Frenchay Hospital, Bristol, United Kingdom
| | | | | | | | | | - Bastiaan R Bloem
- Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
| | | |
Collapse
|
3
|
Brücke T, Jain R, Van Dyck N, Chen L, Thun P, Seijo F, Suarez San Martin E, Visser-Vandewalle V, Barbe M, Gill S, Whone A, Porta M, Servello D, Timmermann L, Alesch F. Long term results of the VANTAGE study: A prospective multicenter trial evaluating deep brain stimulation with a multiple source, constant current system in Parkinson’s disease. Parkinsonism Relat Disord 2018. [DOI: 10.1016/j.parkreldis.2017.11.082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
4
|
Alesch F, Jain R, Chen L, Brucke T, Seijo F, San Martin ES, Haegelen C, Verin M, Maarouf M, Barbe MT, Gill S, Whone A, Porta M, Servello D, Timmermann L. 135 A Comparison of Outcomes Between Deep Brain Stimulation Under General Anesthesia Versus Conscious Sedation With Awake Evaluation. Neurosurgery 2016. [DOI: 10.1227/01.neu.0000489705.76089.c2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
|
5
|
Timmermann L, Jain R, Chen L, Brucke T, Seijo F, San Martin ES, Haegelen C, Verin M, Visser-Vandewalle V, Barbe MT, Gill S, Whone A, Porta M, Servello D, Alesch F. 134 VANTAGE Trial. Neurosurgery 2016. [DOI: 10.1227/01.neu.0000489704.68466.0a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
|
6
|
Alesch F, Jain R, Chen L, Brücke T, Seijo F, Martin ESS, Haegelen C, Verin M, Maarouf M, Barbe M, Gill S, Whone A, Porta M, Servello D, Timmermann L. Essai VANTAGE : suivi de douze (12) mois d’une étude prospective multicentrique évaluant la stimulation cérébrale profonde avec un nouveau système rechargeable à sources de courant multiples indépendantes (Vercise™) dans la maladie de Parkinson. Neurochirurgie 2014. [DOI: 10.1016/j.neuchi.2014.10.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
7
|
Seijo F, Alvarez de Eulate Beramendi S, Santamarta Liébana E, Lozano Aragoneses B, Saiz Ayala A, Fernández de León R, Alvarez Vega MA. Surgical adverse events of deep brain stimulation in the subthalamic nucleus of patients with Parkinson's disease. The learning curve and the pitfalls. Acta Neurochir (Wien) 2014; 156:1505-12; discussion 1512. [PMID: 24752724 DOI: 10.1007/s00701-014-2082-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Accepted: 03/25/2014] [Indexed: 10/25/2022]
Abstract
BACKGROUND Several surgical adverse events (SAEs) have been associated with Deep Brain Stimulation (DBS) of the subthalamic nucleus (STN) in Parkinson's Disease (PD) patients, leading to certain confusion about the risk/benefit ratio of this technique, and giving rise to the need of more and more extensive control studies over longer periods. The aim of this article is to identify and quantify the factors associated with the most frequent AEs from STN DBS in PD-diagnosed patients. METHODS The following variables were studied: aborted procedure, misplaced leads, intracranial haemorrhage, and seizures. This study was carried out in 233 patients diagnosed with PD, with 455 STN electrodes implanted and follow-up after 7 (8-14) years follow up. RESULTS A total amount of 56 SAEs occurred in 49 patients (11.76 % of total procedures, 12.31 % of implanted leads, 21.03 % of patients). SAEs were: five aborted procedures, 26 misplaced leads, ten intracranial haemorrhages, and 15 seizures. Of all the SAEs, long-term effects only happened in two cases of hemiparesis caused by intracranial haemorrhage; the other SAEs were reversible and didn't leave any long-term clinical consequences (0.42 % of procedures, 0.44 % of leads, and 0.86 % of patients). CONCLUSIONS STN DBS in PD patients is a safe surgical procedure, with good risk/benefit ratios: procedure reliability/correct lead implantation in 95.59 %, 0 mortality/implanted lead, 0.12 morbidity/implanted lead, and 0.0043 neurological sequelae/implanted lead.
Collapse
|
8
|
Beatriz L, Valles C, Seijo F. P381: Neurophysiology planning in new target for treatment of chronic cluster headache. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50403-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
9
|
Roy ED, Morzillo AT, Seijo F, Reddy SMW, Rhemtulla JM, Milder JC, Kuemmerle T, Martin SL. The Elusive Pursuit of Interdisciplinarity at the Human--Environment Interface. Bioscience 2013. [DOI: 10.1093/bioscience/63.9.745] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
10
|
Seijo F, Saiz A, Lozano B, Santamarta E, Alvarez-Vega M, Seijo E, Fernández de León R, Fernández-González F, Pascual J. Neuromodulation of the posterolateral hypothalamus for the treatment of chronic refractory cluster headache: Experience in five patients with a modified anatomical target. Cephalalgia 2011; 31:1634-41. [PMID: 22116943 DOI: 10.1177/0333102411430264] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Deep brain stimulation (DBS) of the posterior hypothalamus has been found to be effective in the treatment of refractory chronic cluster headache (CCH). METHODS We report the long-term outcomes of five patients with refractory CCH on whom stimulation of a modified target of approximately 3 mm in radius, which included the posterolateral hypothalamus, the fasciculus mammillotegmentalis, the fasciculus mammillothalamicus and the fasciculus medialis telencephali, was performed. The stereotaxic coordinates were 4 mm from the third ventricle wall, 2 mm from behind the mid-intercommissural point and 5 mm from under the intercommissural line. RESULTS All patients became pain-free for 1-2 weeks after the procedure, but then needed an average of 54 days to optimize stimulation parameters. After a mean follow-up of 33 months, two remain pain-free, two have an excellent response (>90% decrease in attack frequency) and in one the attacks have been reduced by half. There were no serious adverse events. Permanent myosis and euphoria/well-being feeling were seen in three patients. Other adverse events, such as diplopia, dizziness, global headache of cervical dystonia, were seen transiently related to an increase in stimulation parameters. Attacks reappeared transiently in two patients as a result of cable rupture and when the stimulator was disconnected. CONCLUSIONS Our results supports the efficacy of DBS in very refractory CCH with a slightly modified hypothalamic target conceived to avoid the lateral ventricle wall so as to extend the stimulated brain area and to decrease the morbidity of potential haemorrhagic complications.
Collapse
Affiliation(s)
- F Seijo
- University Hospital Central de Asturias, Spain
| | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Fernández-Mendoza J, Lozano B, Seijo F, Santamarta-Liébana E, Ramos-Platón MJ, Vela-Bueno A, Fernández-González F. Evidence of subthalamic PGO-like waves during REM sleep in humans: a deep brain polysomnographic study. Sleep 2009; 32:1117-26. [PMID: 19750916 PMCID: PMC2737569 DOI: 10.1093/sleep/32.9.1117] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
STUDY OBJECTIVES The aim of this study was to examine whether the subthalamic nucleus (STN) plays a role in the transmission of PGO-like waves during REM sleep in humans. DESIGN Simultaneous recordings from deep brain electrodes to record local field potentials (LFPs), and standard polysomnography to ascertain sleep/wake states. SETTING Main Hospital, department of clinical neurophysiology sleep laboratory. PARTICIPANTS 12 individuals with Parkinson's disease, with electrodes implanted in the STN; and, as a control for localization purposes, 4 cluster headache patients with electrodes implanted in the posterior hypothalamus. INTERVENTIONS All subjects underwent functional neurosurgery for implantation of deep brain stimulation electrodes. RESULTS Sharp, polarity-reversed LFPs were recorded within the STN during REM sleep in humans. These subthalamic PGO-like waves (2-3 Hz, 80-200 pV, and 300-500 msec) appeared during REM epochs as singlets or in clusters of 3-13 waves. During the pre-REM period, subthalamic PGO-like waves were temporally related to drops in the submental electromyogram and/or onset of muscular atonia. Clusters of PGO-like waves occurred typically before and during the bursts of rapid eye movements and were associated with an enhancement in fast (15-35 Hz) subthalamic oscillatory activity. CONCLUSION Subthalamic PGO-like waves can be recorded during pre-REM and REM sleep in humans. Our data suggest that the STN may play an active role in an ascending activating network implicated in the transmission of PGO waves during REM sleep in humans.
Collapse
Affiliation(s)
- Julio Fernández-Mendoza
- Department of Psychobiology, School of Psychology, Universidad Complutense, Madrid, Spain
- Department of Psychiatry, School of Medicine, Universidad Autónoma, Madrid, Spain
| | - Beatriz Lozano
- Department of Clinical Neurophysiology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Fernando Seijo
- Department of Neurosurgery, Hospital Universitario Central de Asturias, Oviedo, Spain
| | | | | | - Antonio Vela-Bueno
- Department of Psychiatry, School of Medicine, Universidad Autónoma, Madrid, Spain
| | | |
Collapse
|
12
|
Lozano B, Seijo F, Fernández-Mendoza J, Fernández-González F. TP3.4 Optimising DBS tetraelectrode implants: An integrative methodology of single, multiunitary and field subthalamic activity recordings. Clin Neurophysiol 2006. [DOI: 10.1016/j.clinph.2006.06.169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
13
|
Teijeiro EJ, Macías RJ, Morales JM, Guerra E, López G, Alvarez LM, Fernández F, Maragoto C, Seijo F, Alvarez E. [An automatic system for anatomophysiological correlation in three planes simultaneously during functional neurosurgery]. Rev Neurol 2001; 32:1005-12. [PMID: 11562819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
INTRODUCTION The Neurosurgical Deep Recording System (NDRS) using a personal computer takes the place of complex electronic equipment for recording and processing deep cerebral electrical activity, as a guide in stereotaxic functional neurosurgery. It also permits increased possibilities of presenting information in direct graphic form with automatic management and sufficient flexibility to implement different analyses. OBJECTIVE This paper describes the possibilities of automatic simultaneous graphic representation in three almost orthogonal planes, available with the new 5.1 version of NDRS so as to facilitate the analysis of anatomophysiological correlation in the localization of deep structures of the brain during minimal access surgery. MATERIAL AND METHODS This new version can automatically show the spatial behaviour of signals registered throughout the path of the electrode inside the brain, superimposed simultaneously on sagittal, coronal and axial sections of an anatomical atlas of the brain, after adjusting the scale automatically according to the dimensions of the brain of each individual patient. This may also be shown in a tridimensional representation of the different planes themselves intercepting. RESULTS The NDRS system has been successfully used in Spain and Cuba in over 300 functional neurosurgery operations. The new version further facilitates analysis of spatial anatomophysiological correlation for the localization of brain structures. CONCLUSION This system has contributed to increase the precision and safety in selecting surgical targets in the control of Parkinson s disease and other disorders of movement.
Collapse
Affiliation(s)
- E J Teijeiro
- Servicio de Neurocirugía; Centro Internacional de Restauración Neurológica (CIREN), La Habana, 11300, Cuba.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Fernández González F, Seijo F, Salvador C, Menéndez-Guisasola A, Lozano B, Valle C, Galindo A. [Applied neurophysiology in the deep brain stimulation treatment of multiple sclerosis tremor]. Rev Neurol 2001; 32:559-67. [PMID: 11353997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
INTRODUCTION Many patients with multiple sclerosis (MS) develop tremors that may involve one or both lower and/or upper extremities, head and/or voice. In the last few years, chronic high frequency deep brain stimulation of the ventral intermedious (Vim) thalamic nucleus (Vim-DBS, deep brain stimulation) seems to be gradually replacing Vim-thalamotomy in surgical treatment of tremor. The thalamotomy is a destructive procedure of the whole neural components, whereas Vim-DBS has shown to be a selective neurophysiological procedure to block a specific group of neural components, in particular large, fast and low threshold ones. MS is a disease of uncertain etiology characterized by demyelinating plaques in central nervous system. The neurophysiological intraoperative targeting applied to this pathology identifies demyelinated plaques and the functional state of Vim, reduces pitfalls and increases accuracy. Methods included spontaneous and induced multiunit activity recording, semimicroelectrode and tetraelectrode thalamic evoked potentials recording and micro/macro stimulation techniques.
Collapse
Affiliation(s)
- F Fernández González
- Servicio de Neurofisiología Clínica; Hospital Central de Asturias, Oviedo, 33006, España.
| | | | | | | | | | | | | |
Collapse
|
15
|
Fernández-González F, Seijo F, Valles C, Fernández-Alonso R. [Neurophysiological monitoring in the treatment of pain]. Rev Neurol 2000; 30:567-76. [PMID: 10863731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
INTRODUCTION The concept of transynaptic deafferentation secondary to a lesion is the basis of the therapeutic criteria of functional neurosurgery. DEVELOPMENT Pain due to deafferentation requires clinical neurophysiological techniques for characterization, and when appropriate, for localization of the level of the lesion and the ectopic focus or foci which cause the pain syndrome. However, monitoring therapeutic interventions in the pain clinic is an ever increasing need, and obliges the clinical neurophysiologist to master the range of techniques involved in his specialty, so that he can use the most suitable techniques and methods as required by each condition and/or case. The use of techniques such as micro-recordings of the unitary or multiunitary activity of the nerves or nuclei, intracerebral evoked potentials, nociceptive evoked potentials, reflexology, polysomnography and topography, together with techniques such as percutaneous objective localization of deep nerves, allows quantitative evaluation pre-, intra- and postoperative. CONCLUSION The development of neuromodulation, and in particular of acute or long-term neurostimulation by use of percutaneous techniques, offers an effective therapeutic option in the field of clinical neurophysiology.
Collapse
Affiliation(s)
- F Fernández-González
- Servicio de Neurofisiología Clínica, Hospital Central de Asturias, Oviedo, España.
| | | | | | | |
Collapse
|
16
|
Fernández-González F, Seijo F, Menéndez-Guisasola L, Salvador C, Roger RL, González-García FJ, Fernández-Martínez JM, Bulla B, Fernández-García C, González-González S, Galindo A. [Stereotactic target identification for neurosurgery of Parkinson disease]. Rev Neurol 1999; 28:600-8. [PMID: 10714346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
INTRODUCTION The use of applied neurophysiological methods to improve the stereotactic localization of devices in the deep human brain is a high and systematic technology in Parkinson's neurosurgery today. The available standard equipment for clinical neurophysiology practice may constitute the basic set for high tech functional neurosurgery. Free run and event related multiunit recording, naturalistic and electrical evoked potentials, and deep brain microstimulation responses are the basic methodological set to neurophysiological target localization. DEVELOPMENT AND CONCLUSIONS This article is concerned with the topic: set out a high technology using low cost equipment. So our 41 cases experienced in pallidal and thalamic nucleolisis and thalamus and subthalamus DBS results suggest that the proposed equipment and methods are the required to assure accuracy and safety for target location.
Collapse
|
17
|
Seijo F, Moreno J, Fernández González F, Salvador C, Menéndez-Guisasola L. Valor del registro neurofisiológico en la cirugía de la enfermedad de Parkinson. Estudio preliminar. Neurocirugia (Astur) 1999. [DOI: 10.1016/s1130-1473(99)70800-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
18
|
Seijo F, Hernández LC, Del Valle M, Ayala J, Iglesias L, Fuente T, López JM. Changes in hypothalamic met-enkephalin levels of rats induced by painful stimulation and morphine treatment. Stereotact Funct Neurosurg 1993; 61:171-81. [PMID: 7846380 DOI: 10.1159/000100635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The possible influence of painful stimulation and morphine analgesia on hypothalamic met-enkephalin levels, and the possible correlation between this biochemical parameter and animal behaviour was studied. The results indicate that both painful stimulation and morphine treatment induce an increase in hypothalamic metenkephalin. On the other hand, naloxone did not cause any variation. In animals submitted to painful stimulus, morphine treatment induced a decrease in hypothalamic met-enkephalin levels. Finally, when both morphine and naloxone were administrated before nociceptive stimulation, much higher levels were measured. There was no correlation between the level of hypothalamic met-enkephalin and the pain rating.
Collapse
Affiliation(s)
- F Seijo
- Unidad para el Tratamiento del Dolor y Neurocirugía Funcional, Hospital Central de Asturias, Oviedo
| | | | | | | | | | | | | |
Collapse
|
19
|
Seijo F, Bulla B, Fernández C, Moreno J, López JM. Changes in arterial blood pressure induced by percutaneous thermocoagulation of the trigeminal ganglion and rootlets. Stereotact Funct Neurosurg 1993; 61:96-101. [PMID: 8197331 DOI: 10.1159/000100626] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The changes in arterial blood pressure which occur during the different steps of thermocoagulation of the trigeminal ganglion and rootlets are reported. The arterial blood pressure of 54 patients with trigeminal neuralgia was recorded continuously by catheterization of the radial artery. The maximal values were recorded (a) during the analgesic-sedation stage; (b) when the electrode came into contact with the base of the cranium during movement of the needle towards the foramen ovale; (c) during insertion of the electrode into the foramen ovale, and (d) during the thermocoagulation. One-way analysis of variance and Student's t test were used for analysis of the data. There was a significant increase of arterial blood pressure during the various stages of thermocoagulation.
Collapse
Affiliation(s)
- F Seijo
- Unidad para el Tratamiento del Dolor y Neurocirugía Funcional, Hospital Central de Asturias, Oviedo, España
| | | | | | | | | |
Collapse
|
20
|
Seijo F, Iglesias L, Ayala JM, del Valle M, Hernández LC, Bengoechea E. [An experimental pain model: the formaldehyde test]. Arch Neurobiol (Madr) 1989; 52:134-9. [PMID: 2774801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Some papers have been published in relation to alternative models of experimental pain in animals. In this work, with the aim of proving the validity, safety, reproducibility and objectivity of this model, we have compared the behaviour of the animal under the formaldehyde test before and after the intracerebroventricular administration of morphine, proving itself as an ideal model for the study of chronic pain caused by an excess of nociception.
Collapse
|
21
|
Seijo F, Melcón ML, Simó RM. [Chronic intrathecal administration of morphine for cancer pain]. Rev Esp Anestesiol Reanim 1987; 34:266-9. [PMID: 3659501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
22
|
Muruamendiaraz V, Seijo F, Escaf S, Martín Benito JL, Ardura C, Regadera FJ, Alonso Sainz F. [Intrathecal anesthesia in metastatic pain of urologic origin. A new technic]. Actas Urol Esp 1985; 9:247-54. [PMID: 3839965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|