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Spinal Cord ; 58(3): 377-386, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31649323

RESUMO

STUDY DESIGN: Retrospective analysis. OBJECTIVE: To assess the impact of mean arterial blood pressure (MAP) during surgical intervention for spinal cord injury (SCI) on motor recovery. SETTING: Level-one Trauma Hospital and Acute Rehabilitation Hospital in San Jose, CA, USA. METHODS: Twenty-five individuals with traumatic SCI who received surgical and acute rehabilitation care at a level-one trauma center were included in this study. The Surgical Information System captured intraoperative MAPs on a minute-by-minute basis and exposure was quantified at sequential thresholds from 50 to 104 mmHg. Change in International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI) motor score was calculated based on physiatry evaluations at the earliest postoperative time and at discharge from acute rehabilitation. Linear regression models were used to estimate the rate of recovery across the entire MAP range. RESULTS: An exploratory analysis revealed that increased time within an intraoperative MAP range (70-94 mmHg) was associated with ISNCSCI motor score improvement. A significant regression equation was found for the MAP range 70-94 mmHg (F[1, 23] = 5.07, r2 = 0.181, p = 0.034). ISNCSCI motor scores increased 0.039 for each minute of exposure to the MAP range 70-94 mmHg during the operative procedure; this represents a significant correlation between intraoperative time with MAP 70-94 and subsequent motor recovery. Blood pressure exposures above or below this range did not display a positive association with motor recovery. CONCLUSIONS: Hypertension as well as hypotension during surgery may impact the trajectory of recovery in individuals with SCI, and there may be a direct relationship between intraoperative MAP and motor recovery.


Assuntos
Pressão Arterial , Recuperação de Função Fisiológica , Traumatismos da Medula Espinal/reabilitação , Traumatismos da Medula Espinal/cirurgia , Adulto , Pressão Arterial/fisiologia , Determinação da Pressão Arterial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Monitorização Intraoperatória , Recuperação de Função Fisiológica/fisiologia , Estudos Retrospectivos , Traumatismos da Medula Espinal/fisiopatologia , Fatores de Tempo
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