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Browsing by Author "Rodrigues, T"

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  • Complete blood count parameters as biomarkers of retinopathy of prematurity: a Portuguese multicenter study
    Publication . Fevereiro-Martins, M; Santos, AC; Marques-Neves, C; Guimarães, H; Bicho, M; Afonso, C; Ferreira, J; Espírito Santo, R; Teixeira, F; Rosa, R; Carneiro, CV; Ferreira, M; Matos, T; Neiva, L; Pereira, S; Aires, S; Parreira, R; Melnik, Z; Faria, J; Teixeira, J; Barros, P; Almeida, J; Malheiro, B; Rodrigues, PC; Albuquerque, L; Freitas, A; Barros, P; Kotchekova, N; Freitas, R; Silveira, AC; Ferreira, A; Morais, B; Teixeira, S; Mota, M; Guerra, M; Coimbra, L; Gigante, J; Ferreira, M; Lapa, P; Monteiro, M; Alfaiate, M; Rodrigues, T; Pina, T; Rosário, M; Silva, R; Breda, J; Bazenga, F; Pinto, JA
    Purpose: To evaluate complete blood count (CBC) parameters in the first week of life as predictive biomarkers for the development of retinopathy of prematurity (ROP). Methods: Multicenter, prospective, observational study of a cohort of preterm infants born with gestational age (GA) < 32 weeks or birth weight < 1500 g in eight Portuguese neonatal intensive care units. All demographic, clinical, and laboratory data from the first week of life were collected. Univariate logistic regression was used to assess risk factors for ROP and then multivariate regression was performed. Results: A total of 455 infants were included in the study. The median GA was 29.6 weeks, and the median birth weight was 1295 g. One hundred and seventy-two infants (37.8%) developed ROP. Median values of erythrocytes (p < 0.001), hemoglobin (p < 0.001), hematocrit (p < 0.001), mean corpuscular hemoglobin concentration (p < 0.001), lymphocytes (p = 0.035), and platelets (p = 0.003) of the group of infants diagnosed with ROP any stage were lower than those without ROP. Mean corpuscular volume (MCV) (p = 0.044), red blood cell distribution width (RDW) (p < 0.001), erythroblasts (p < 0.001), neutrophils (p = 0.030), neutrophils-lymphocytes ratio (p = 0.028), and basophils (p = 0.003) were higher in the ROP group. Higher values of MCV, erythroblasts, and basophils remained significantly associated with ROP after multivariate regression. Conclusion: In our cohort, the increase in erythroblasts, MCV, and basophils in the first week of life was significantly and independently associated with the development of ROP. These CBC parameters may be early predictive biomarkers for ROP.
    2023Journal article Open access Show more
  • Sickle cell disease in children: chronic complications and search of predictive factors for adverse outcomes
    Publication . Silva, IV; Reis, AF; Palaré, MJ; Ferrão, A; Rodrigues, T; Morais, A
    BACKGROUND: Sickle cell disease (SCD) has extremely variable phenotypes, and several factors have been associated with the severity of the disease. OBJECTIVES: To analyze the chronic complications of SCD and look for predictive risk factors for increased severity and number of complications. METHODS: Retrospective study including all children followed for SCD in the Paediatric Haematology Unit of a tertiary hospital in Portugal, who completed 17 yr old between the years 2004 and 2013. RESULTS: We identified 44 patients, 55% female and 98% black. Chronic complications occurred in 80% of cases. Slight dilatation of the left ventricle was the most frequent complication (47.7%), followed by respiratory function disturbs (43.2%), microlithiasis or cholelithiasis (40.9%), increased flow velocity of cerebral arteries (31.8%), enuresis, delayed puberty and bone abnormalities (6.8% each), sickle cell retinopathy and leg ulcer (4.6% each) and recurrent priapism (2.3%). We identified a statistically significant association between leukocytes >15 000/μL and a higher number of hospitalizations (P < 0.001) and chronic complications of the disease (P = 0.035). The occurrence of dactylitis in first year of life was also significantly associated with a higher number of hospitalizations (P = 0.004) and chronic complications (P = 0.018). The presence of α-thalassemia was associated with a lower number of chronic complications (P = 0.036). CONCLUSIONS: Leucocytosis and dactylitis in the first year of life can be predictors of SCD severity, while the presence of α-thalassemia can be protective. The determination of early predictors of chronic complications of SCD may improve the comprehensive care of these patients.
    2014Journal article Open access Show more
  • The importance of Vancomycin and Aminoglycoside pharmacokinetics monitoring
    Publication . Rodrigues, V; Rodrigues, T; Palma, D; Pereira de Figueiredo, AM
    2023Conference object Open access Show more