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Cerebral blood flow increase in cancer patients by applying cervical spinal cord stimulation
Clavo, B; Robaina, F; Catalá, L; Lloret, M; Pinar, B; Caramés, MA; Ruiz, A; Cabezón, A; González, G; Lara, P; Ruiz-Egea, E; Hernández, MA.
Affiliation
  • Clavo, B; Dr. Negrín University Hospital. Canary Islands. Spain
  • Robaina, F; Dr. Negrín University Hospital. Canary Islands. Spain
  • Catalá, L; Dr. Negrín University Hospital. Canary Islands. Spain
  • Lloret, M; Dr. Negrín University Hospital. Canary Islands. Spain
  • Pinar, B; Dr. Negrín University Hospital. Canary Islands. Spain
  • Caramés, MA; Dr. Negrín University Hospital. Canary Islands. Spain
  • Ruiz, A; Dr. Negrín University Hospital. Canary Islands. Spain
  • Cabezón, A; Dr. Negrín University Hospital. Canary Islands. Spain
  • González, G; Dr. Negrín University Hospital. Canary Islands. Spain
  • Lara, P; Dr. Negrín University Hospital. Canary Islands. Spain
  • Ruiz-Egea, E; Dr. Negrín University Hospital. Canary Islands. Spain
  • Hernández, MA; Dr. Negrín University Hospital. Canary Islands. Spain
Neurocir. - Soc. Luso-Esp. Neurocir ; 18(1): 28-35, ene.-feb. 2007. ilus
Article in En | IBECS | ID: ibc-70294
Responsible library: ES15.1
Localization: ES15.1 - BNCS
RESUMEN
Introducción. Los gliomas de alto grado y los tumores avanzados de cabeza y cuello generalmente tienen un flujo sanguíneo disminuido. Esto produce una disminución de la llegada de quimioterapia agentes quimioterápicos y oxígeno, lo que lleva a un aumento de la resistencia a la radioterapia y a la quimioterapia. El objetivo de este estudio fue analizar el efecto de la electroestimulación epidural de la médula espinal cervical(EME) sobre el flujo cerebral en pacientes con esos tumores. Material y métodos. Hemos evaluado 27 pacientes oncológicos portando dispositivos de EME, que fueron colocados después del diagnóstico y antes de empezar el tratamiento con radio-quimioterapia. Se trata de 12 pacientes con gliomas de alto grado y 15 pacientes con tumores avanzados de cabeza y cuello. Antes y después de la EME se determinó bilateralmente el flujo sanguíneo en las arterias cerebrales medias mediante Doppler transcraneal. Resultados. Durante la EME se produjo un aumento significativo (p<0.001) de la velocidad sistólica (mean media >=22%) y diastólica (>=29%) del flujo en la arteria cerebral media, tanto del hemisferio ipsilateral al tumor como del hemisferio sano. El análisis por subgrupos de tumores mostró también resultados semejantes. Discusión. Los resultados sugieren que la EME es capaz de aumentar el flujo sanguíneo cerebral en pacientes oncológicos. La principal implicación de este hallazgo sería su potencial utilidad para modificar la isquemia local y regional de los tumores cerebrales, y así intentar mejorar el efecto de la radioterapia y quimioterapia. Están en marcha estudios adicionales para confirmarlos potenciales efectos beneficiosos de la técnica
ABSTRACT
Introduction. Generally, high-grade gliomas and head and neck tumors have decreased loco-regional blood flow resulting in reduced delivery of chemotherapy and oxygen, as well as an increases in radiation resistance to radiotherapy. The aim of this study was to analyze the effect of cervical spinal cord electrical stimulation (cSCS) on cerebral blood flow in patients with those tumors. Patients and methods. We have evaluated 27 cancer patients with 12 with high grade gliomas and 15 with advanced head and neck tumors, who had cSCS devices placed after tumor diagnoses and before the commencement initiating of radio-chemotherapy. They were 12high grade gliomas and 15 advanced head and neck tumors. Before and after cSCS, cerebral blood flow was assessed bilaterally by transcranial Doppler. Results. During cSCS there was a significant(p<0.001) increase in systolic (mean >22%) and diastolic(>29%) blood-flow velocities in both, healthy and tumor middle cerebral arteries. The analyses by subgroup of tumors showed similarly significant outcomes findings. Conclusions. The results suggest that neuro-stimulation spinal cord electrical stimulation can increase cerebral blood flow in cancer patients. The implication is that this technique could be useful in modifying locoregional ischemia in brain tumors thus improveing the outcomes of after radio-chemotherapy. Further research is in progress to confirm the advantages of the technique
Subject(s)
Full text: Available Collection: National databases / Spain Database: IBECS Main subject: Spinal Cord / Electric Stimulation Therapy / Middle Cerebral Artery / Brain Stem Neoplasms / Glioma / Head and Neck Neoplasms / Antineoplastic Agents Limits: Adult / Aged / Female / Humans / Male Language: English Journal: Neurocir. - Soc. Luso-Esp. Neurocir Year: 2007 Document type: Article Institution/Affiliation country: Dr. Negrín University Hospital/Spain
Full text: Available Collection: National databases / Spain Database: IBECS Main subject: Spinal Cord / Electric Stimulation Therapy / Middle Cerebral Artery / Brain Stem Neoplasms / Glioma / Head and Neck Neoplasms / Antineoplastic Agents Limits: Adult / Aged / Female / Humans / Male Language: English Journal: Neurocir. - Soc. Luso-Esp. Neurocir Year: 2007 Document type: Article Institution/Affiliation country: Dr. Negrín University Hospital/Spain
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