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Gallstones in children with sickle cell disease followed up at a Brazilian hematology center / Litíase biliar em crianças com doença falciforme acompanhadas em um centro de hematologia no Brasil
Gumiero, Ana Paula dos Santos; Bellomo-Brandão, Maria Angela; Costa-Pinto, Elizete Aparecida Lomazi da.
  • Gumiero, Ana Paula dos Santos; Campinas State University. Faculty of Medicine. Department of Pediatrics.
  • Bellomo-Brandão, Maria Angela; Campinas State University. Faculty of Medicine. Department of Pediatrics.
  • Costa-Pinto, Elizete Aparecida Lomazi da; Campinas State University. Faculty of Medicine. Department of Pediatrics.
Arq. gastroenterol ; 45(4): 313-318, out.-dez. 2008. ilus, graf, tab
Article in English | LILACS | ID: lil-502145
ABSTRACT

BACKGROUND:

Sickle cell disease causes chronic and recurrent hemolysis which is a recognized risk factor for cholelithiasis. This complication occurs in 50 percent of adults with sickle cell disease. Surgery is the consensual therapy for symptomatic patients, but the surgical approach is still controversial in asymptomatic individuals.

AIMS:

To determine the frequency and to describe and discuss the outcome of children with sickle cell disease complicated with gallstones followed up at a tertiary pediatric hematology center.

METHODS:

In a retrospective and descriptive study, 225 charts were reviewed and data regarding patient outcome were recorded.

RESULTS:

The prevalence of cholelithiasis was 45 percent and half the patients were asymptomatic. The mean age at the time of diagnosis of cholelithiasis and surgical treatment was 12.5 years (standard deviation = 5) and 14 years (standard deviation = 5.4), respectively. The prevalence of cholelithiasis was higher in patients with SS homozygous and Sb heterozygous thalassemia when compared to patients with sickle cell disease. In 50 percent of symptomatic patients, recurrent abdominal pain was the single or predominant symptom. Thirty-nine of 44 patients submitted to surgery reported symptom relief after the surgical procedure. Asymptomatic individuals who did not undergo surgical treatment were followed up for 7 years (standard deviation = 4.8), and none of them presented complications related to cholelithiasis during this period.

CONCLUSIONS:

The frequency of cholelithiasis in the study population was 45 percent. One-third of the patients were diagnosed before 10 years of age. Patients with the SS homozygous or Sb heterozygous phenotype were at a higher risk for the development of cholelithiasis than patients with sickle cell disease. About 50 percent of patients with gallstones were asymptomatic, the most of them did not undergo surgery and did not present complications during a 7-year follow-up...
RESUMO
RACIONAL A doença falciforme causa hemólise crônica e acelerada que é reconhecida como fator de risco para desenvolvimento de colelitíase. Essa complicação pode ocorrer em mais de 50 por cento da população adulta com doença falciforme. A colecistectomia é a conduta consensual para pacientes sintomáticos, mas nos assintomáticos a sua indicação é controversa.

OBJETIVOS:

Verificar a prevalência de colelitíase em pacientes com doença falciforme e descrever a conduta tomada em caso de diagnóstico da complicação, numa corte de pacientes seguidos num centro terciário de hematologia pediátrica.

MÉTODOS:

Neste estudo descritivo e retrospectivo, foram revistos prontuários de 225 pacientes e os dados relacionados à evolução clínica desses indivíduos foram registrados.

RESULTADOS:

A freqüência cumulativa de colelitíase foi de 45 por cento, sendo que metade deles não apresentava quaisquer sintomas. As médias de idade ao diagnóstico de colelitíase e seu tratamento cirúrgico foram, respectivamente, 12,5 anos (desvio padrão = 5 anos) e 14 anos (desvio padrão = 5,4 anos). A prevalência de colelitíase foi maior nos pacientes com doença SS (homozigotos) e Sb (heterozigotos) talassemia, comparados aos pacientes com doença falciforme. Entre os pacientes sintomáticos (50 por cento), a dor abdominal inespecífica foi o único sintoma ou o sintoma predominante. Entre pacientes que realizaram colecistectomia (n = 44), 39 tiveram melhora ou resolução de seus sintomas após o procedimento. Em 7 anos (desvio padrão = 4,8 anos) de seguimento clínico dos pacientes assintomáticos e não tratados cirurgicamente, verificou-se que nenhuma criança apresentou complicações relacionadas à colelitíase.

CONCLUSÕES:

A freqüência de colelitíase na população estudada foi de 45 por cento. Um terço dos pacientes foram diagnosticados antes dos 10 anos de idade. Pacientes com fenótipos SS (homozigotos) e S² (heterozigotos) associaram-se a maior risco de litíase biliar, quando comparados...
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Gallstones / Anemia, Sickle Cell Type of study: Diagnostic study / Observational study / Prevalence study / Risk factors Limits: Adolescent / Adult / Child / Child, preschool / Female / Humans / Infant / Male Country/Region as subject: South America / Brazil Language: English Journal: Arq. gastroenterol Journal subject: Gastroenterology Year: 2008 Type: Article Affiliation country: Brazil

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Full text: Available Index: LILACS (Americas) Main subject: Gallstones / Anemia, Sickle Cell Type of study: Diagnostic study / Observational study / Prevalence study / Risk factors Limits: Adolescent / Adult / Child / Child, preschool / Female / Humans / Infant / Male Country/Region as subject: South America / Brazil Language: English Journal: Arq. gastroenterol Journal subject: Gastroenterology Year: 2008 Type: Article Affiliation country: Brazil