Diagnóstico diferencial da deficiência de ferro

Nutritional impact of bariatric surgery: a comparative study of Roux-en-Y Gastric Bypass and Sleeve gastrectomy between patients from the public and private health systems

PURPOSE

To compare the nutritional status follow up of patients who underwent Roux-en-Y gastric bypass (BGYR) and Sleeve gastrectomy (SG) in hospitals of the private and public health systems, in Pernambuco.

METHODS

This study included patients who underwent bariatric surgery in the public and private health systems, in Pernambuco, from 2008 to 2016. Anthropometric and biochemical (hemoglobin, B12, iron and ferritin) data were evaluated in the preoperative period and at 3, 6 and 12 months after the operation.

RESULTS

There were no significant difference between patients seen at the two health systems regarding the levels of hemoglobin, iron, anemia and vitamin B12. Patients who underwent the RYGB, presented with iron deficiency which was significantly lower for those in the private system, but only at the 3 month evaluation. Low levels of ferritin were observed at the 6 month evaluation, and patients in the private health system presented with the highest ferritin deficiency. The rate of surgical success was significantly higher in those patients undergoing the RYGB at the private system.

CONCLUSIONS

After a 12-month bariatric surgery follow-up, there was no statistically significant difference regarding micronutrient deficiency between patients followed up at the private and public health systems.

Prevalence of anemia in schools of the metropolitan region of Curitiba, Brazil

Background

Anemia during childhood is one of the biggest public health problems worldwide, including Brazil. Insufficient or abnormal production of hemoglobin, loss of iron and excessive destruction of red blood cells are the most common causes of anemia. Among the reasons of anemia, iron deficiency accounts for 50% of anemia cases in developing countries. Affected individuals present a wide range of clinical problems, including delayed neuropsychomotor progression, impaired cellular immunity and reduction of intellectual capacity. This study aimed to evaluate the prevalence of anemia in children attending public schools in the metropolitan region of Curitiba, Paraná, Brazil.

Method

A retrospective study was conducted of 409 children aged 8–12 years old included in an extension project of the Universidade Federal do Paraná. The results of complete blood count and hemoglobin electrophoresis of all children were evaluated. Anemia was considered when the hemoglobin levels were <11.5 g/dL.

Results

The prevalence of anemia was found to be 2.2% of the population studied, with hypochromic microcytic anemia being the most common type. Seven children had sickle cell trait and one had β-thalassemia.

Conclusion

The prevalence of anemia in this study was considered normal according the World Health Organization classification, which is different from the data found in other Brazilian regions.

RISCO DE ANEMIA FERROPRIVA EM CRIANÇAS COM BAIXOS NÍVEIS DE FERRITINA

Em crianças pré-escolares a anemia ferropriva pode comprometer a capacidade de aprendizagem, além de produzir efeitos comportamentais como a falta de atenção, fadiga e cansaço que podem levar ao baixo rendimento escolar. O objetivo deste estudo foi verificar o número de crianças de 02 a 06 anos que realizaram as dosagens de ferritina, ferro sérico e hemograma, com suspeita de anemia ferropriva, num laboratório clínico, no primeiro semestre de 2011, buscando avaliar os resultados dos referidos exames e estabelecer a prevalência de anemia ferropriva nos indivíduos estudados. Foi conduzido um estudo observacional descritivo do tipo transversal. Através do software SADIG-BI, utilizado para gerenciamento de dados, foram selecionadas 363 crianças de 02 a 06 anos que realizaram os exames ferritina, ferro sérico e hemograma no período de 01/01/2011 a 31/07/2011. As crianças do sexo masculino apresentaram níveis plasmáticos de ferritina significativamente mais baixos quando comparadas com as crianças do sexo feminino (p<0,05). Com relação aos parâmetros ferro sérico e hemoglobina, não foram observadas diferenças significativas entre os participantes dos dois sexos. Das 363 crianças estudadas, 9 (2,5%) apresentavam anemia ferropriva (Hb ≤11,0 g/dL e Ferritina ≤12 ng/mL). Foi observada uma baixa prevalência de anemia ferropriva nas crianças estudadas. O achado mais importante deste estudo foi o risco quase cinco vezes maior do desenvolvimento de anemia ferropriva em crianças que apresentaram níveis plasmáticos de ferritina menores ou iguais a 12 ng/mL, sugerindo que este valor pode ser considerado o melhor ponto de corte para a população estudada.