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Tourigny JN, Boucher V, Paquet V, Fortier É, Malo C, Mercier É, Chauny JM, Clark G, Blanchard PG, Carmichael PH, Gariépy JL, D'Astous M, Émond M. External validation of the updated Brain Injury Guidelines for complicated mild traumatic brain injuries: a retrospective cohort study. J Neurosurg 2022; 137:1-7. [PMID: 35078154 DOI: 10.3171/2021.10.jns211794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 10/16/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Approximately 10% of patients with mild traumatic brain injury (mTBI) have intracranial bleeding (complicated mTBI) and 3.5% eventually require neurosurgical intervention, which is mostly available at centers with a higher level of trauma care designation and often requires interhospital transfer. In 2018, the Brain Injury Guidelines (BIG) were updated in the United States to guide emergency department care and patient disposition for complicated mild to moderate TBI. The aim of this study was to validate the sensitivity and specificity of the updated BIG (uBIG) for predicting the need for interhospital transfer in Canadian patients with complicated mTBI. METHODS This study took place at three level I trauma centers. Consecutive medical records of patients with complicated mTBI (Glasgow Coma Scale score 13-15) who were aged ≥ 16 years and presented between September 2016 and December 2017 were retrospectively reviewed. Patients with a penetrating trauma and those who had a documented cerebral tumor or aneurysm were excluded. The primary outcome was a combination of neurosurgical intervention and/or mTBI-related death. Sensitivity and specificity analyses were performed. RESULTS A total of 477 patients were included, of whom 8.4% received neurosurgical intervention and 3% died as a result of their mTBI. Forty patients (8%) were classified as uBIG-1, 168 (35%) as uBIG-2, and 269 (56%) as uBIG-3. No patients in uBIG-1 underwent neurosurgical intervention or died as a result of their injury. This translates into a sensitivity for predicting the need for a transfer of 100% (95% CI 93.2%-100%) and a specificity of 9.4% (95% CI 6.8%-12.6%). Using the uBIG could potentially reduce the number of transfers by 6% to 25%. CONCLUSIONS The patients in uBIG-1 could be safely managed at their initial center without the need for transfer to a center with a higher level of neurotrauma care. Although the uBIG could decrease the number of transfers, further refinement of the criteria could improve its specificity.
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Affiliation(s)
- Jean-Nicolas Tourigny
- 1Département de médecine familiale et de médecine d'urgence, Faculté de médecine, Université Laval, Québec, Québec, Canada
| | - Valérie Boucher
- 2Centre de recherche du CHU de Québec-Université Laval, Québec, Québec, Canada
- 3VITAM-Centre de recherche en santé durable de l'Université Laval, Québec, Québec, Canada
- 6Centre d'excellence sur le vieillissement de Québec, Québec, Canada
| | - Véronique Paquet
- 1Département de médecine familiale et de médecine d'urgence, Faculté de médecine, Université Laval, Québec, Québec, Canada
| | - Émile Fortier
- 1Département de médecine familiale et de médecine d'urgence, Faculté de médecine, Université Laval, Québec, Québec, Canada
| | - Christian Malo
- 1Département de médecine familiale et de médecine d'urgence, Faculté de médecine, Université Laval, Québec, Québec, Canada
- 2Centre de recherche du CHU de Québec-Université Laval, Québec, Québec, Canada
| | - Éric Mercier
- 1Département de médecine familiale et de médecine d'urgence, Faculté de médecine, Université Laval, Québec, Québec, Canada
- 3VITAM-Centre de recherche en santé durable de l'Université Laval, Québec, Québec, Canada
| | | | | | - Pierre-Gilles Blanchard
- 1Département de médecine familiale et de médecine d'urgence, Faculté de médecine, Université Laval, Québec, Québec, Canada
- 2Centre de recherche du CHU de Québec-Université Laval, Québec, Québec, Canada
- 3VITAM-Centre de recherche en santé durable de l'Université Laval, Québec, Québec, Canada
| | | | - Jean-Luc Gariépy
- 2Centre de recherche du CHU de Québec-Université Laval, Québec, Québec, Canada
| | - Myreille D'Astous
- 2Centre de recherche du CHU de Québec-Université Laval, Québec, Québec, Canada
| | - Marcel Émond
- 1Département de médecine familiale et de médecine d'urgence, Faculté de médecine, Université Laval, Québec, Québec, Canada
- 2Centre de recherche du CHU de Québec-Université Laval, Québec, Québec, Canada
- 3VITAM-Centre de recherche en santé durable de l'Université Laval, Québec, Québec, Canada
- 6Centre d'excellence sur le vieillissement de Québec, Québec, Canada
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Tourigny JN, Paquet V, Fortier É, Malo C, Mercier É, Chauny JM, Clark G, Blanchard PG, Boucher V, Carmichael PH, Gariépy JL, Émond M. Predictors of neurosurgical intervention in complicated mild traumatic brain injury patients: a retrospective cohort study. Brain Inj 2021; 35:1267-1274. [PMID: 34488497 DOI: 10.1080/02699052.2021.1972147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVES To determine the predicting demographic, clinical and radiological factors for neurosurgical intervention in complicated mild traumatic brain injury (mTBI) patients. METHODS Design: retrospective multicenter cohort study. Participants: patients aged ≥16 presenting to all level-I trauma centers in Quebec between 09/2016 and 12/2017 with mTBI(GCS 13-15) and complication on initial head CT (intracranial hemorrhage/skull fracture). Procedure: Consecutive medical records were reviewed and separated into two groups: no neurosurgical intervention and neurosurgical intervention (NSI). Main outcome: neurosurgical intervention. Analysis: multiple logistic regression model. RESULTS Four hundred and seventy-eight patients were included and 40 underwent NSI. One patient had radiological deterioration but no clinical deterioration prior to surgery. Subdural hemorrhage ≥4 mm width (OR:3.755 [95% CI:1.290-10.928]) and midline shift (OR:7.507 [95% CI: 3.317-16.989]) increased the risk of NSI. Subarachnoid hemorrhage was associated with a lower risk of NSI (OR:0.312 [95% CI: 0.136-0.713]). All other intracranial hemorrhages were not associated with NSI. CONCLUSION Radiological deterioration was not associated with the incidence of NSI. Subdural hemorrhage and midline shift should be predicting factors for neurosurgery. Some patients with isolated findings such as subarachnoid hemorrhage could be safely managed in their original center without being transferred to a level-I trauma center.
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Affiliation(s)
- Jean-Nicolas Tourigny
- Département de Médicine Familiale et de Médicine d'urgence, Faculté de Médecine, Université Laval, Québec, Canada
| | - Véronique Paquet
- Département de Médicine Familiale et de Médicine d'urgence, Faculté de Médecine, Université Laval, Québec, Canada
| | - Émile Fortier
- Département de Médicine Familiale et de Médicine d'urgence, Faculté de Médecine, Université Laval, Québec, Canada
| | - Christian Malo
- Département de Médicine Familiale et de Médicine d'urgence, Faculté de Médecine, Université Laval, Québec, Canada.,Chu de Québec - Université Laval, Québec, Canada
| | - Éric Mercier
- Département de Médicine Familiale et de Médicine d'urgence, Faculté de Médecine, Université Laval, Québec, Canada.,Chu de Québec - Université Laval, Québec, Canada.,Vitam - Centre de Recherche en Santé Durable, Québec, Canada
| | | | | | - Pierre-Gilles Blanchard
- Département de Médicine Familiale et de Médicine d'urgence, Faculté de Médecine, Université Laval, Québec, Canada.,Chu de Québec - Université Laval, Québec, Canada.,Vitam - Centre de Recherche en Santé Durable, Québec, Canada
| | - Valérie Boucher
- Chu de Québec - Université Laval, Québec, Canada.,Vitam - Centre de Recherche en Santé Durable, Québec, Canada.,Centre d'excellence Sur le Vieillissement de Québec, Québec, Canada
| | | | | | - Marcel Émond
- Département de Médicine Familiale et de Médicine d'urgence, Faculté de Médecine, Université Laval, Québec, Canada.,Chu de Québec - Université Laval, Québec, Canada.,Vitam - Centre de Recherche en Santé Durable, Québec, Canada.,Centre d'excellence Sur le Vieillissement de Québec, Québec, Canada
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3
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Brunet MC, Simonyan D, Carrondo Cottin S, Morin F, Milot G, Audet MÈ, Gariépy JL, Lavoie P. Effect of aneurysm size on procedure-related rupture in patients with subarachnoid hemorrhage treated with coil occlusion. Interdisciplinary Neurosurgery 2020. [DOI: 10.1016/j.inat.2019.100566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Turgeon AF, Lauzier F, Zarychanski R, Fergusson DA, Léger C, McIntyre LA, Bernard F, Rigamonti A, Burns K, Griesdale DE, Green R, Scales DC, Meade MO, Savard M, Shemilt M, Paquet J, Gariépy JL, Lavoie A, Reddy K, Jichici D, Pagliarello G, Zygun D, Moore L. Prognostication in critically ill patients with severe traumatic brain injury: the TBI-Prognosis multicentre feasibility study. BMJ Open 2017; 7:e013779. [PMID: 28416497 PMCID: PMC5775467 DOI: 10.1136/bmjopen-2016-013779] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE Severe traumatic brain injury is a significant cause of morbidity and mortality in young adults. Assessing long-term neurological outcome after such injury is difficult and often characterised by uncertainty. The objective of this feasibility study was to establish the feasibility of conducting a large, multicentre prospective study to develop a prognostic model of long-term neurological outcome in critically ill patients with severe traumatic brain injury. DESIGN A prospective cohort study. SETTING 9 Canadian intensive care units enrolled patients suffering from acute severe traumatic brain injury. Clinical, biological, radiological and electrophysiological data were systematically collected during the first week in the intensive care unit. Mortality and functional outcome (Glasgow Outcome Scale extended) were assessed on hospital discharge, and then 3, 6 and 12 months following injury. OUTCOMES The compliance to protocolised test procedures was the primary outcome. Secondary outcomes were enrolment rate and compliance to follow-up. RESULTS We successfully enrolled 50 patients over a 12-month period. Most patients were male (80%), with a median age of 45 years (IQR 29.0-60.0), a median Injury Severity Score of 38 (IQR 25-50) and a Glasgow Coma Scale of 6 (IQR 3-7). Mortality was 38% (19/50) and most deaths occurred following a decision to withdraw life-sustaining therapies (18/19). The main reasons for non-enrolment were the time window for inclusion being after regular working hours (35%, n=23) and oversight (24%, n=16). Compliance with protocolised test procedures ranged from 92% to 100% and enrolment rate was 43%. No patients were lost to follow-up at 6 months and 2 were at 12 months. CONCLUSIONS In this multicentre prospective feasibility study, we achieved feasibility objectives pertaining to compliance to test, enrolment and follow-up. We conclude that the TBI-Prognosis prospective multicentre study in severe traumatic brain injury patients in Canada is feasible.
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Affiliation(s)
- Alexis F Turgeon
- Population Health and Optimal Health Practices Research Unit (Trauma—Emergency—Critical Care Medicine), CHU de Québec—Université Laval Research Centre, Québec City, Québec, Canada
- Department of Anesthesiology and Critical Care Medicine, Division of Critical Care Medicine, Université Laval, Québec City, Québec, Canada
| | - François Lauzier
- Population Health and Optimal Health Practices Research Unit (Trauma—Emergency—Critical Care Medicine), CHU de Québec—Université Laval Research Centre, Québec City, Québec, Canada
- Department of Anesthesiology and Critical Care Medicine, Division of Critical Care Medicine, Université Laval, Québec City, Québec, Canada
| | - Ryan Zarychanski
- Department of Internal Medicine, Section of Critical Care and of Haematology and Medical Oncology, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Dean A Fergusson
- Clinical Epidemiology Unit, Center for Transfusion and Critical Care Research, Ottawa Health Research Institute, University of Ottawa, Ottawa, Ontario, Canada
| | - Caroline Léger
- Population Health and Optimal Health Practices Research Unit (Trauma—Emergency—Critical Care Medicine), CHU de Québec—Université Laval Research Centre, Québec City, Québec, Canada
| | - Lauralyn A McIntyre
- Clinical Epidemiology Unit, Center for Transfusion and Critical Care Research, Ottawa Health Research Institute, University of Ottawa, Ottawa, Ontario, Canada
- Department of Critical Care Medicine, Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
| | - Francis Bernard
- Department of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Andrea Rigamonti
- Interdepartmental Division of Critical Care Medicine, St-Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Karen Burns
- Interdepartmental Division of Critical Care Medicine, St-Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Donald E Griesdale
- Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Robert Green
- Department of Critical Care Medicine, Department of Emergency Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Damon C Scales
- Interdepartmental Division of Critical Care Medicine, Sunnybrook Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Maureen O Meade
- Department of Medicine, Division of Critical Care Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Martin Savard
- Department of Medicine, Division of Neurology, Université Laval, Québec, Québec, Canada
| | - Michèle Shemilt
- Population Health and Optimal Health Practices Research Unit (Trauma—Emergency—Critical Care Medicine), CHU de Québec—Université Laval Research Centre, Québec City, Québec, Canada
| | - Jérôme Paquet
- Department of Surgery, Division of Neurosurgery, Université Laval, Québec, Québec, Canada
- Department Radiology and Nuclear Medicine, Université Laval, Québec, Québec, Canada
| | - Jean-Luc Gariépy
- Department Radiology and Nuclear Medicine, Université Laval, Québec, Québec, Canada
| | - André Lavoie
- Population Health and Optimal Health Practices Research Unit (Trauma—Emergency—Critical Care Medicine), CHU de Québec—Université Laval Research Centre, Québec City, Québec, Canada
| | - Kesh Reddy
- Department of Surgery, Division of Neurosurgery, McMaster University, Hamilton, Ontario, Canada
| | - Draga Jichici
- Department of Medicine, Division of Critical Care Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Giuseppe Pagliarello
- Department of Critical Care Medicine, Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
| | - David Zygun
- Department of Critical Care Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Lynne Moore
- Population Health and Optimal Health Practices Research Unit (Trauma—Emergency—Critical Care Medicine), CHU de Québec—Université Laval Research Centre, Québec City, Québec, Canada
- Department of Preventive and Social Medicine, Université Laval, Québec, Québec, Canada
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Abstract
Background and Purpose—
The purpose of this study was to estimate the performance measures of MR angiography (MRA) in the diagnosis of aneurysm residual flow after coil occlusion.
Methods—
Patients having at least 1 cerebral aneurysm treated with coil occlusion were prospectively and consecutively enrolled. Time of flight and contrast-enhanced MRA were performed the same day of the DSA follow-up. The degree of aneurysm occlusion and dimensions of the residual flow were evaluated by independent readers at MRA and digital subtraction angiogram. MRA performance measures were estimated in a cross-sectional analysis and repeated in subgroups of aneurysm sizes and locations. MRA predictive values for recurrence were also estimated using a longitudinal design.
Results—
We obtained 167 aneurysm evaluations for each imaging modality. Class 3 residual flow was seen on digital subtraction angiogram follow-up in 27%. The sensitivity and specificity of MRA was 88% (95% CI, 80–94) and 79% (95% CI, 67–88), respectively. The positive predictive value for a Class 3 recurrence was 67% (95% CI, 51–80) and the negative predictive value was 93% (95% CI, 86–97). Time-of-flight MRA underestimated the length of the residual flow (
P
=0.039), whereas contrast-enhanced MRA overestimated its width (
P
<0.0001). MRA sensitivity for a Class 3 residual flow was lower for aneurysms <6 mm (
P
=0.01).
Conclusions—
MRA has sufficient accuracy for screening of aneurysm residual flow after coil occlusion. Due to its lower negative predictive value, recurrent aneurysms should be confirmed with digital subtraction angiogram before planning a retreatment. Routine use of MRA to follow small aneurysms should wait better estimation of its performance in this particular subgroup.
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Affiliation(s)
- Pascale Lavoie
- From the Service de neurochirurgie du Centre hospitalier affilié de l'Université Laval (P.L., G.M.), Quebec, Canada; Département de radiologie de l'Université Laval (J.-L.G., S.J., F.B., F.T.), Québec, Canada; Centre d'excellence sur le vieillissement de Québec du Centre hospitalier de l'Université Laval (R.V.), Québec, Canada; and Département de médecine sociale et préventive de l'Université Laval (R.V.), Québec, Canada
| | - Jean-Luc Gariépy
- From the Service de neurochirurgie du Centre hospitalier affilié de l'Université Laval (P.L., G.M.), Quebec, Canada; Département de radiologie de l'Université Laval (J.-L.G., S.J., F.B., F.T.), Québec, Canada; Centre d'excellence sur le vieillissement de Québec du Centre hospitalier de l'Université Laval (R.V.), Québec, Canada; and Département de médecine sociale et préventive de l'Université Laval (R.V.), Québec, Canada
| | - Geneviève Milot
- From the Service de neurochirurgie du Centre hospitalier affilié de l'Université Laval (P.L., G.M.), Quebec, Canada; Département de radiologie de l'Université Laval (J.-L.G., S.J., F.B., F.T.), Québec, Canada; Centre d'excellence sur le vieillissement de Québec du Centre hospitalier de l'Université Laval (R.V.), Québec, Canada; and Département de médecine sociale et préventive de l'Université Laval (R.V.), Québec, Canada
| | - Steve Jodoin
- From the Service de neurochirurgie du Centre hospitalier affilié de l'Université Laval (P.L., G.M.), Quebec, Canada; Département de radiologie de l'Université Laval (J.-L.G., S.J., F.B., F.T.), Québec, Canada; Centre d'excellence sur le vieillissement de Québec du Centre hospitalier de l'Université Laval (R.V.), Québec, Canada; and Département de médecine sociale et préventive de l'Université Laval (R.V.), Québec, Canada
| | - Fernand Bédard
- From the Service de neurochirurgie du Centre hospitalier affilié de l'Université Laval (P.L., G.M.), Quebec, Canada; Département de radiologie de l'Université Laval (J.-L.G., S.J., F.B., F.T.), Québec, Canada; Centre d'excellence sur le vieillissement de Québec du Centre hospitalier de l'Université Laval (R.V.), Québec, Canada; and Département de médecine sociale et préventive de l'Université Laval (R.V.), Québec, Canada
| | - Francois Trottier
- From the Service de neurochirurgie du Centre hospitalier affilié de l'Université Laval (P.L., G.M.), Quebec, Canada; Département de radiologie de l'Université Laval (J.-L.G., S.J., F.B., F.T.), Québec, Canada; Centre d'excellence sur le vieillissement de Québec du Centre hospitalier de l'Université Laval (R.V.), Québec, Canada; and Département de médecine sociale et préventive de l'Université Laval (R.V.), Québec, Canada
| | - René Verreault
- From the Service de neurochirurgie du Centre hospitalier affilié de l'Université Laval (P.L., G.M.), Quebec, Canada; Département de radiologie de l'Université Laval (J.-L.G., S.J., F.B., F.T.), Québec, Canada; Centre d'excellence sur le vieillissement de Québec du Centre hospitalier de l'Université Laval (R.V.), Québec, Canada; and Département de médecine sociale et préventive de l'Université Laval (R.V.), Québec, Canada
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Gleeton D, Levesque S, Trépanier CA, Gariépy JL, Brassard J, Dion N. Symptomatic axillary hematoma after ultrasound-guided infraclavicular block in a patient with undiagnosed upper extremity mycotic aneurysms. Anesth Analg 2010; 111:1069-71. [PMID: 20705787 DOI: 10.1213/ane.0b013e3181ee80b3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We present a case of axillary hematoma complicating an ultrasound-guided infraclavicular block in a patient with undiagnosed mycotic aneurysms of the peripheral arteries. Mycotic aneurysm is a rare medical condition with well-identified risk factors. When performing regional anesthesia in patients with these risk factors, clinicians should have a high degree of suspicion about the possible existence of vascular anomalies. A preprocedure Doppler study of the block area and real-time guidance of the needle using ultrasound may be useful.
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Affiliation(s)
- Dave Gleeton
- Department of Anesthesiology, Centre de Recherche du CHA, Unité de Recherche en Traumatologie-Urgence-Soins Intensifs, Hôpital de l'Enfant-Jésus, Université Laval, Quebec, QC, G1J 1Z4, Canada.
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8
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Gariépy JL, Houdart E, Boukobza M, Chapot R, Cambra R, Merland JJ. Spine and spinal cord vascular malformations: pictorial essay. Can Assoc Radiol J 1999; 50:397-406. [PMID: 10659065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Affiliation(s)
- J L Gariépy
- Service de neuroradiologie thérapeutique et interventionelle, Hôpital Lariboisière, Paris, France
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Abstract
In a previous study, it was demonstrated that the high rates of social reactivity exhibited by isolated male mice in a dyadic encounter were mediated, at least in part, by an increased sensitivity of the D1 dopamine receptors. The present research was guided by the hypothesis that the behavioral effects of isolation are reversible, and that changes in dopaminergic function support this reversibility. To this end, mice selectively bred for high and low levels of aggression were reared in isolation from weaning (21 days) to puberty (45 days), at which point they were either assigned to groups or left in isolation until day 69. By comparison to the continuous isolation condition, mice that eventually formed groups exhibited significantly less reactivity in a dyadic test conducted on day 69, showed a reduced response to dihydrexidine (DHX), and a decreased density of D1 dopamine receptors. This experiment provided evidence for the plasticity of the neurobiological system supporting reactive responses, and confirmed the view that its functional organization is open to experientially-induced changes.
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Affiliation(s)
- J L Gariépy
- Department of Psychology, University of North Carolina at Chapel Hill, USA.
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Gendreau PL, Petitto JM, Gariépy JL, Lewis MH. D2-like dopamine receptor mediation of social-emotional reactivity in a mouse model of anxiety: strain and experience effects. Neuropsychopharmacology 1998; 18:210-21. [PMID: 9471118 DOI: 10.1016/s0893-133x(97)00131-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We examined the effects of the D2-like dopamine receptor agonist quinpirole on social-emotional reactivity in two inbred mouse strains. An important objective of this study was to determine whether these effects could be modulated by differential housing conditions (i.e., isolation versus group housing). Moreover, as motor activity is an important control for the assessment of drug effects on emotional behavior, the effects of quinpirole were tested in two inbred mouse strains (A/J and C57BL/6J) low and high in motor activity, respectively. Levels of emotional reactivity were assessed in response to mild social stimulation provided by a nonaggressive conspecific. Quinpirole increased stationary forms of reactivity (i.e., startle, kicking, defensive posture, vocalization) in both isolated and group-housed A/J mice. This effect was more pronounced and observed at lower doses in isolated than in group-housed A/J mice. Quinpirole also induced jump behavior in isolated but not group-housed A/J mice. The shift to the left in the dose-response curve of quinpirole in isolated A/J mice indicated that D2-like dopamine receptor functions can be altered by social experience. Quinpirole only marginally increased stationary and locomotor reactivity (i.e., jump) in isolated C57BL/6J mice, whereas it markedly reduced motor activity in group-housed mice of this strain. The investigation of emotional reactivity within a social context and using strains that differ in motor activity permitted the effects of drugs on emotional reactivity to be dissociated from the effects on motor activity. Given that social-emotional reactivity was elicited by what typically should have been mild and nonthreatening stimuli, this model may be highly relevant to understanding the neurobiology of anxiety. Finally, these data support an important role for dopamine in the mediation of social-emotional reactivity.
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Affiliation(s)
- P L Gendreau
- Department of Psychology, University of North Carolina at Chapel Hill, USA
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Gendreau PL, Petitto JM, Schnauss R, Frantz KJ, Van Hartesveldt C, Gariépy JL, Lewis MH. Effects of the putative dopamine D3 receptor antagonist PNU 99194A on motor behavior and emotional reactivity in C57BL/6J mice. Eur J Pharmacol 1997; 337:147-55. [PMID: 9430408 DOI: 10.1016/s0014-2999(97)01324-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [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: 02/05/2023]
Abstract
Due to the regional expression of D3 dopamine receptors in limbic areas of the brain, there has been considerable interest in the potential role of this receptor subtype in mediating emotional behavior. Previous studies in habituated rats have shown that the putative dopamine D3 receptor antagonist 5,6-dimethoxy-2-(di-n-propylamino)indan (PNU 99194A) increased locomotor behavior. The present study examined the effects PNU 99194A on motor and emotional behaviors in C57BL/6J mice. Motor behavior was assessed in both habituated and nonhabituated mice. Emotional behavior was assessed using the elevated plus-maze and a social context involving an isolated C57BL/6J mouse and a nonaggressive conspecific. In mice habituated to the activity chamber prior to drug administration, PNU 99194A increased locomotion and rearing at lower doses (5, 10 mg/kg) whereas higher doses (20, 30 mg/kg) reduced these behaviors early in the test session. Thigmotaxis was increased independently of the effects on motor behavior. In mice exposed to the activity chamber for the first time, PNU 99194A produced a weak motor activation at lower doses and an initial decrease in motor behavior at higher doses that was followed by an increase in locomotion later in the test session. PNU 99194A had no systematic effects on activity in the elevated plus-maze, but dose-dependently increased flight reactivity in the social reactivity paradigm. These and previous findings raise questions about the role of dopamine D3 receptors in mediating motor behavior and emotional reactivity as well as the pharmacology of this putative dopamine D3 receptor antagonist.
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Affiliation(s)
- P L Gendreau
- Department of Psychology, University of North Carolina at Chapel Hill, 27599-3270, USA
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Gendreau PL, Gariépy JL, Petitto JM, Lewis MH. D1 dopamine receptor mediation of social and nonsocial emotional reactivity in mice: effects of housing and strain difference in motor activity. Behav Neurosci 1997. [PMID: 9106681 DOI: 10.1037//0735-7044.111.2.424] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The study examined the effects of isolation housing and the role of D1 dopamine receptors on isolation-induced social and nonsocial (acoustic startle) reactivity in mice high (C57BL/6) and low (A) in motor activity. Isolation housing had no effect on acoustic startle but increased strain-specific forms of social reactivity. The D1 agonist dihydrexidine (DHX) increased acoustic startle in isolated mice of both strains, but this effect was more pronounced in C57BL/6 mice. In this strain, DHX and the D1 agonist SKF-81297 increased locomotor forms of social reactivity (e.g., escape, jump), whereas the D1 antagonist SCH-23390 increased stationary reactivity (e.g., freezing). In A mice, DHX and SKF-81297 increased and decreased stationary reactivity, respectively, whereas SCH-23390 had no effect on these behaviors. Administration of SKF-81297 after pretreatment with SCH-23390 or the D2 antagonist sulpiride confirmed the importance of D1 receptors in mediating specific forms of social reactivity in C57BL/6 mice. These results suggest an important relationship between social reactivity and motor activity and an important, albeit strain-dependent, role for D1 receptors in mediating specific emotional behaviors.
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Affiliation(s)
- P L Gendreau
- Department of Psychology, University of North Carolina at Chapel Hill, USA
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Gendreau PL, Gariépy JL, Petitto JM, Lewis MH. D1 dopamine receptor mediation of social and nonsocial emotional reactivity in mice: effects of housing and strain difference in motor activity. Behav Neurosci 1997; 111:424-34. [PMID: 9106681 DOI: 10.1037/0735-7044.111.2.424] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [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: 02/04/2023]
Abstract
The study examined the effects of isolation housing and the role of D1 dopamine receptors on isolation-induced social and nonsocial (acoustic startle) reactivity in mice high (C57BL/6) and low (A) in motor activity. Isolation housing had no effect on acoustic startle but increased strain-specific forms of social reactivity. The D1 agonist dihydrexidine (DHX) increased acoustic startle in isolated mice of both strains, but this effect was more pronounced in C57BL/6 mice. In this strain, DHX and the D1 agonist SKF-81297 increased locomotor forms of social reactivity (e.g., escape, jump), whereas the D1 antagonist SCH-23390 increased stationary reactivity (e.g., freezing). In A mice, DHX and SKF-81297 increased and decreased stationary reactivity, respectively, whereas SCH-23390 had no effect on these behaviors. Administration of SKF-81297 after pretreatment with SCH-23390 or the D2 antagonist sulpiride confirmed the importance of D1 receptors in mediating specific forms of social reactivity in C57BL/6 mice. These results suggest an important relationship between social reactivity and motor activity and an important, albeit strain-dependent, role for D1 receptors in mediating specific emotional behaviors.
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Affiliation(s)
- P L Gendreau
- Department of Psychology, University of North Carolina at Chapel Hill, USA
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Lacoursière L, Langis P, Gariépy JL. Residents' corner. Answer to case of the month #41. Mature ovarian cystic teratoma. Can Assoc Radiol J 1996; 47:381-3. [PMID: 8857976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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Gariépy JL, Gendreau PL, Mailman RB, Tancer M, Lewis MH. Rearing conditions alter social reactivity and D1 dopamine receptors in high- and low-aggressive mice. Pharmacol Biochem Behav 1995; 51:767-73. [PMID: 7675857 DOI: 10.1016/0091-3057(95)00028-u] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
As a result of selective breeding, NC900 mice exhibit isolation-induced attacks in a social interaction test, whereas NC100 mice do not attack but freeze instead. Administration of the D1 receptor agonist dihydrexidine was previously shown to reduce aggression in NC900 mice and nonagonistic approaches in NC100 mice. This resulted from induction of a marked social reactivity in both selected lines. Because isolation rearing also induces social reactivity, the present experiment was designed to test the hypothesis that D1 dopamine receptors mediate isolation-induced social reactivity. Isolation was expected to potentiate the effects of a D1 agonist and to increase D1 dopamine receptor density. Thus, isolated and group-reared mice were administered dihydrexidine, and their social behavior was compared to vehicle-injected controls. Dihydrexidine induced higher levels of reactivity among isolated than among group-reared animals, especially in NC900 mice. In independent experiments, increased densities of D1 dopamine receptors in the striatum of isolated animals were found, with no change in affinity. These studies suggest an important role for the D1 dopamine receptor as a mediator of isolation-induced social reactivity.
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Affiliation(s)
- J L Gariépy
- Department of Psychology, University of North Carolina at Chapel Hill, USA
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Rioux M, Gariépy JL. Cystic lymphangioma of the colon: ultrasonographic and computed tomographic features. Can Assoc Radiol J 1995; 46:127-30. [PMID: 7704677] [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: 01/26/2023] Open
Abstract
Cystic lymphangioma is a rare benign tumour of the gastrointestinal tract. The authors describe a 52-year-old woman with cystic lymphangioma in the ascending colon. Ultrasonographically, the lesion was compressible and anechoic and showed posterior acoustic enhancement. Doppler analysis showed no flow within the lesion. On computed tomography the lesion appeared as a focal thickening of the colonic wall with attenuation values of 6 to 10 Hounsfield units. The lesion extended along the wall and did not invade the adjacent fat. It could not be located during endoscopy or laparotomy and was eventually located for resection with intraoperative ultrasonography.
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Affiliation(s)
- M Rioux
- Département de radiologie, Hôpital Saint-François d'Assise, Québec, QC
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Lewis MH, Gariépy JL, Gendreau P, Nichols DE, Mailman RB. Social reactivity and D1 dopamine receptors: studies in mice selectively bred for high and low levels of aggression. Neuropsychopharmacology 1994; 10:115-22. [PMID: 7912934 DOI: 10.1038/npp.1994.13] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Robust individual differences in social behavior have been obtained by selectively breeding Institute for Cancer Research mice for high and low levels of aggression. As previously shown, when paired with a non-selected group-housed partner mouse, NC900 mice exhibit isolation-induced aggression. Conversely, NC100 mice fail to attack, freezing upon social contact. Previous studies have established that NC100 mice have lower dopamine concentrations in nucleus accumbens and caudate nucleus, with increased dopamine receptor densities in these same regions. Thus, we wished to determine the effect of administration of a dopamine receptor agonist on social behavior. Mice of both lines were administered 0, 1, 3, or 10 mg/kg (SC) of the full efficacy D1 receptor agonist dihydrexidine, and their behavior was assessed in a social interaction test. Dihydrexidine reduced aggression in NC900 mice and nonagonistic approach in NC100 mice in a dose dependent manner. In both cases, this resulted from induction of a marked reactivity to mild social stimulation as measured by increases in behaviors such as escape, reflexive kicking, and vocalizations. Dihydrexidine had no systematic effect on the freezing behavior characteristic of the low-aggressive line. In independent experiments, mice were pretreated with either the D1 antagonist SCH-23390 (.1 mg/kg) or the selective D2 antagonist remoxipride (1.0 mg/kg), after which they received dihydrexidine (10 mg/kg) and were tested as above. The effects of dihydrexidine on social reactivity in mice of both lines were significantly antagonized by SCH-23390 but not attenuated by remoxipride.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- M H Lewis
- Department of Psychiatry, University of Florida, Gainesville
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Abstract
The central questions of social development--from the roots of mother-infant attachment to the plasticity of aggressive behavior--pivot on the relations between genetic and ontogenetic sources of variance. It is proposed that (a) developmental, experiential, and microevolutionary processes typically collaborate, rather than compete, in achieving social adaptation; (b) social behavior patterns are mostly closed to modification in the course of development and across generations, but avenues of vulnerability exist in ontogeny and microevolution for dynamic, rapid, and reversible changes in key features; (c) a general avenue for change is delay or acceleration in the developmental onset of one or more features of the behavior pattern, which in turn modifies the functions and properties of the adaptive configuration; and (d) the features of social behavior that are open to rapid change in ontogeny should be open as well to rapid changes in microevolution, although different underlying processes may be involved. Empirical findings from the investigation of aggressive interactions are used to illustrate this proposal on the dual genesis and coincident adaptation of social behaviors.
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Affiliation(s)
- R B Cairns
- Department of Psychology, University of North Carolina, Chapel Hill 27599-3270
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Gariépy JL, Hood KE, Cairns RB. A developmental-genetic analysis of aggressive behavior in mice (Mus musculus): III. Behavioral mediation by heightened reactivity or immobility? J Comp Psychol 1988; 102:392-9. [PMID: 3215014 DOI: 10.1037/0735-7036.102.4.392] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
This research was designed to investigate development and behavioral mediation in lines of ICR mice that have been selectively bred for aggressive behavior. General behavioral reactivity and behavioral immobility have been implicated as potential mediators by prior analyses of preattack interactions. To evaluate the separate roles of these dispositions, the emergence of attacks in genetically selected lines was tracked for 11 years by three levels of analysis: over successive generations, over development, and over dyadic interactions. Convergent outcomes were observed in all three levels with respect to two findings: (a) Robust line differences were obtained in attack behaviors, and (b) strong associations were found between line differences in attacks and line differences in behavioral immobility. Conversely, all three levels of analysis indicated a weak and inconsistent association between line differences in attacks and measures of social and nonsocial reactivity.
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Affiliation(s)
- J L Gariépy
- Psychology Department, University of North Carolina, Chapel Hill 27514
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