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Transcranial doppler in sickle cell anaemia: evaluation of brain blood flow parameters in children of Aracaju, Northeast - Brazil / Doppler transcraniano em portadores de anemia falciforme: estudo dos parâmetros de fluxo sangüíneo cerebral em crianças de Aracaju, Sergipe
Melo, Hyder Aragão de; Barreto-Filho, José Augusto S; Prado, Roberto César P. do; Cipolotti, Rosana.
  • Melo, Hyder Aragão de; Federal University of Sergipe. University Hospital. Department of Medicine. Aracaju. BR
  • Barreto-Filho, José Augusto S; Federal University of Sergipe. University Hospital. Department of Medicine. Aracaju. BR
  • Prado, Roberto César P. do; Federal University of Sergipe. University Hospital. Department of Medicine. Aracaju. BR
  • Cipolotti, Rosana; Federal University of Sergipe. University Hospital. Department of Medicine. Aracaju. BR
Arq. neuropsiquiatr ; 66(2b): 360-364, jun. 2008. tab
Article in English | LILACS | ID: lil-486191
ABSTRACT

BACKGROUND:

Environmental factors interfere on sickle cell anaemia (SCA). Transcanial Doppler (TCD) is important to evaluate cerebrovascular disease.

OBJECTIVE:

To evaluate brain haemodynamic profile of children with SCA in Sergipe.

METHODS:

Cross sectional study (group1 SCA patients aged 3-18; group2 age and sex matched healthy individuals). Baseline brain flow was evaluated.

RESULTS:

Group1=34 patients; group 2=81 controls. SCA patients had mean velocity (MV)=125.69 cm/s±23.40; pulsatility index (PI)=0.66±0.10; middle cerebral artery ratio (MCAr)=14.53±15.23; right anterior cerebral artery/right middle cerebral artery=0.77±0.20; left anterior cerebral artery/left middle cerebral artery=0.78±0.20. Controls had MV=79.44±15.54; PI=0.82±0.11; MCAr=13.19±13.77; right anterior cerebral artery/right middle cerebral artery=0.80±0.16; left anterior cerebral artery/left middle cerebral artery=0.84±0.18. MV and PI differences were statistically significant between groups. MV was related to age but not to gender.

CONCLUSION:

MV evaluation using TCD was similar to international standards and possible to be used in our setting.
RESUMO

INTRODUÇÃO:

Aspectos ambientais interferem na apresentação da anemia falciforme (AF). Doppler transcraniano (DTC) é útil na avaliação do risco para doença cerebrovascular em pacientes com AF.

OBJETIVO:

Avaliar o perfil hemodinâmico cerebral de crianças com AF em Sergipe.

MÉTODO:

Estudo transversal (grupo1 portadores de AF 3-18 anos; grupo2 indivíduos saudáveis, pareados por idade e gênero). Foram avaliadas medidas de fluxo sangüíneo cerebral basal.

RESULTADOS:

Grupo1 (n=34) velocidade média (Vm)=125,69 cm/s ±23,40; índice de pulsatilidade (Ip)=0,66±0,10; relação entre artéria cerebral média (ACMs)=14,53±15,23; artéria cerebral anterior (ACA)/ACM direita=0,77±0,20; ACA/ACM esquerda=0,78±0,20. Grupo 2 (n=81) Vm=79,44 cm/s ±15,54; Ip=0,82±0,11, relação entre ACMs=13,19±13,77, ACA/ACM direita=0,80±0,16; ACA/ACM esquerda=0,84± 0,18. Vm foi maior e Ip menor no grupo1. Vm se correlacionou com idade mas não com gênero.

CONCLUSÃO:

O perfil hemodinâmico cerebral de crianças com AF em Sergipe assemelha-se às referências internacionais. Não se observou interferência de fatores ambientais sobre os resultados.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Brain / Cerebrovascular Disorders / Middle Cerebral Artery / Anemia, Sickle Cell Type of study: Etiology study / Observational study / Prevalence study / Risk factors Limits: Adolescent / Child / Child, preschool / Female / Humans / Male Country/Region as subject: South America / Brazil Language: English Journal: Arq. neuropsiquiatr Journal subject: Neurology / Psychiatry Year: 2008 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Sergipe/BR

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Full text: Available Index: LILACS (Americas) Main subject: Brain / Cerebrovascular Disorders / Middle Cerebral Artery / Anemia, Sickle Cell Type of study: Etiology study / Observational study / Prevalence study / Risk factors Limits: Adolescent / Child / Child, preschool / Female / Humans / Male Country/Region as subject: South America / Brazil Language: English Journal: Arq. neuropsiquiatr Journal subject: Neurology / Psychiatry Year: 2008 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Sergipe/BR