1000 resultados para Recém-nascidos Teses
Resumo:
Vitamin A is an essential nutrient for many physiological processes such as growth and development, so that their adequate nutritional state is essential during pregnancy and lactation. Lactating women and children in breastfeeding are considered risk groups for vitamin A deficiency and some factors may increase the risk of vitamin A deficiency, such as prematurity. The aim of this work was to evaluate the vitamin A concentration in preterm and term lactating women and newborns by determination of retinol in maternal serum, umbilical cord serum and breast milk collected until 72 hours postpartum. 182 mothers were recruited and divided into preterm group (GPT; n = 118) and term group (GT, n = 64). In preterm group were also analyzed transition milk (7th-15th day; n = 68) and mature milk (30th-55th day; n = 46) samples. Retinol was analyzed by high-performance liquid chromatography (HPLC). Maternal retinol concentration in serum was 48.6 12.3 g/dL in GPT and 42.8 16.3 g/dL in the GT (p <0.01). Cord serum retinol was 20.4 7.4 g/dL in GPT and 23.2 7.6 g/dL in GT (p> 0.05). Among newborns, 43% of premature and 36% of term had low levels of serum retinol in umbilical cord (<20 g/dL). In colostrum, the retinol in preterm and term groups had an average of 100.8 49.0 g/dL and 127.5 65.1 g/dL, respectively (p <0.05). The retinol average in preterm milk increased to 112.5 49.7 g/dL in transition phase and decreased to 57.2 23.4 g/dL in mature milk, differing significantly in all stages (p <0.05). When comparing with the recommendation of vitamin A intake (400 g/day) GT colostrum reached the recommendation for infants, but in GPT the recommendation was not achieved at any stage. Mothers of premature infants had higher serum retinol than mothers at term; however, this was not reflected in serum retinol of umbilical cord, since premature had lower concentration of retinol. Such condition can be explained due to lower maternal physiological hemodilution and placental transfer of retinol to the fetus during preterm gestation. Comparison of retinol in colostrum showed lower concentrations in GPT; however the transition phase there was a significant increase of retinol content released by the mammary gland of preterm mothers. This situation highlights a specific physiological adaptation of prematurity, likely to more contribute to formation of hepatic reserves of retinol in premature infants.
Resumo:
The patient safety is a major concern in health services for its global dimension, as evidenced by the fragility of care processes that predispose an occurrence of adverse events. These events in a neonatal intensive care unit are considered serious and hazardous to lives of newborns. The present study aimed to identify and analyze adverse events in a neonatal intensive care unit based in Trigger Tool. It is an epidemiological, cross-sectional , exploratory, retrospective study with quantitative, descriptive and analytical approach, performed in 2015 at a school hospital. The sample was not probabilistic, involving 116 newborns who met the eligibility criteria. Data collection was performed by retrospective review of medical records, using a specific kind of "trigger" instrument, composed of sentinel events in neonatology, adapted from the American model used by the Vermont-Oxford Network. Data were analyzed using descriptive and inferential statistics. The chi-square test for linear trend was used to assess the associations between the variables of interest. The research received a favorable agreement from Ethics Committee of the Federal University of Rio Grande do Norte, under number 1055533, and Presentation Certificate for Ethics Assessment 43894515.6.0000.5537. The results show among investigated newborns, 110 experienced at least one adverse event during their stay, with a total of 391 medical records analyzed and rate of 3.37 events per patient. Prevailed the preterm newborns with low birth weight, from mother who had hypertensive diseases during pregnancy and urinary tract infection. The average hospitalization time was 25 days, associated with hospital-acquired infections events (p = 0.01). Among the identified adverse events stood out the events related to thermoregulation disorders (39.0%), with prevalence of hypothermia (26.0%), followed by health care-related infections (16.4%) and blood glucose disorders, hypoglycemia (9.00%) and hyperglycemia (6.64%). Most of these incidents were classified in categories E and F, which represents that there was damage small proportion. Due to these damages come from the care practice with newborn, 78% were classified as avoidable. There was statistically significant association between the variable birth weight with infections (p = 0.006) as well as peri/intraventricular bleeding (p = 0.02), hypoglycemia (p = 0.021), hyperglycemia (p = 0.001), hyperthermia (p = 0.39) and death (p=0,02). Gestational age was associated with seizures (p = 0.002), hyperglycemia (p=0.017) e hyperthermia (p=0.027). The security institution culture was reported by the health workers as intermediate, even though the number of adverse events found in only one unit of service indicates that there is much to be done. Thus the high rate of adverse events identified in the neonatal intensive care unit reinforces the necessity to elaborate specific preventive strategies for this risk environment.
Resumo:
The patient safety is a major concern in health services for its global dimension, as evidenced by the fragility of care processes that predispose an occurrence of adverse events. These events in a neonatal intensive care unit are considered serious and hazardous to lives of newborns. The present study aimed to identify and analyze adverse events in a neonatal intensive care unit based in Trigger Tool. It is an epidemiological, cross-sectional , exploratory, retrospective study with quantitative, descriptive and analytical approach, performed in 2015 at a school hospital. The sample was not probabilistic, involving 116 newborns who met the eligibility criteria. Data collection was performed by retrospective review of medical records, using a specific kind of "trigger" instrument, composed of sentinel events in neonatology, adapted from the American model used by the Vermont-Oxford Network. Data were analyzed using descriptive and inferential statistics. The chi-square test for linear trend was used to assess the associations between the variables of interest. The research received a favorable agreement from Ethics Committee of the Federal University of Rio Grande do Norte, under number 1055533, and Presentation Certificate for Ethics Assessment 43894515.6.0000.5537. The results show among investigated newborns, 110 experienced at least one adverse event during their stay, with a total of 391 medical records analyzed and rate of 3.37 events per patient. Prevailed the preterm newborns with low birth weight, from mother who had hypertensive diseases during pregnancy and urinary tract infection. The average hospitalization time was 25 days, associated with hospital-acquired infections events (p = 0.01). Among the identified adverse events stood out the events related to thermoregulation disorders (39.0%), with prevalence of hypothermia (26.0%), followed by health care-related infections (16.4%) and blood glucose disorders, hypoglycemia (9.00%) and hyperglycemia (6.64%). Most of these incidents were classified in categories E and F, which represents that there was damage small proportion. Due to these damages come from the care practice with newborn, 78% were classified as avoidable. There was statistically significant association between the variable birth weight with infections (p = 0.006) as well as peri/intraventricular bleeding (p = 0.02), hypoglycemia (p = 0.021), hyperglycemia (p = 0.001), hyperthermia (p = 0.39) and death (p=0,02). Gestational age was associated with seizures (p = 0.002), hyperglycemia (p=0.017) e hyperthermia (p=0.027). The security institution culture was reported by the health workers as intermediate, even though the number of adverse events found in only one unit of service indicates that there is much to be done. Thus the high rate of adverse events identified in the neonatal intensive care unit reinforces the necessity to elaborate specific preventive strategies for this risk environment.
Resumo:
Advances in neonatology resulted in reducing the mortality rate and the consequent increase in survival of newborn pre terms (PTN). On the other hand, there was also a considerable increase in the risk of developing health care-related infection (HAI) in its most invasive, especially for bloodstream. This situation is worrying, and prevent the occurrence of it is a challenge and becomes one of the priorities in the Neonatal Intensive Care Unit (NICU). Sepsis is the main cause of death in critical neonates and affects more than one million newborns each year, representing 40% of all deaths in neonates. The incidence of late sepsis can reach 50% in NICUs. Currently the major responsible for the occurrence of sepsis in developed countries is the coagulase negative Staphylococcus (CoNS), followed by S. aureus. The cases of HAIs caused by resistant isolates for major classes of antimicrobial agents have been increasingly frequent in the NICU. Therefore, vancomycin has to be prescribed more frequently, and, today, the first option in the treatment of bloodstream infections by resistant Staphylococcus. The objectives of this study were to assess the impact on late sepsis in epidemiology III NICU after the change of the use of antimicrobials protocol; check the frequency of multiresistant microorganisms; assess the number of neonates who came to death. This study was conducted in NICU Level III HC-UFU. three study groups were formed based on the use of the proposed late sepsis treatment protocol, with 216 belonging to the period A, 207 B and 209 to the C. The work was divided into three stages: Period A: data collected from neonates admitted to the unit between September 2010 to August 2011. was using treatment of late sepsis: with oxacillin and gentamicin, oxacillin and amikacin, oxacillin and cefotaxime. Period B: data were collected from March 2012 to February 2013. Data collection was started six months after protocol change. Due to the higher prevalence of CoNS, the initial protocol was changed to vancomycin and cefotaxime. Period C: data were collected from newborns inteerne in the unit from September 2013 to August 2014. Data collection was started six months after the protocol change, which occurred in March 2013. From the 632 neonates included in this study, 511 (80,8%) came from the gynecology and obstetrics department of the HC-UFU. The mean gestational age was 33 weeks and the prevailing sex was male (55,7%). Seventy-nine percent of the studied neonates were hospitalized at the NICU HC-UFU III because of complications related to the respiratory system. Suspicion of sepsis took to hospitalization in the unit of 1,9% of newborns. In general, the infection rate was 34,5%, and the most frequent infectious sepsis syndrome 81,2%. There was a tendency to reduce the number of neonates who died between periods A 11 and C (p = 0,053). From the 176 cases of late sepsis, 73 were clinical sepsis and 103 had laboratory confirmation, with greater representation of Gram positive bacteria, which corresponded to 67.2% of the isolates and CoNS the most frequent micro-organism (91,5%). There was a statistically significant difference in the reduction of isolation of Gram positive microorganisms between periods A and C (p = 0,0365) as well as in reducing multidrug-resistant CoNS (A and B period p = 0,0462 and A and C period, p = 0,158). This study concluded that: the CoNS was the main microorganism responsible for the occurrence of late sepsis in neonates in the NICU of HC-UFU; the main risk factors for the occurrence of late sepsis were: birth weight <1500 g, use of PICC and CUV, need for mechanical ventilation and parenteral nutrition, SNAPPE> 24 and length of stay more than seven days; the new empirical treatment protocol late sepsis, based on the use of vancomycin associated cefepime, it was effective, since promoted a reduction in insulation CoNS blood cultures between the pre and post implementation of the Protocol (A and C, respectively); just as there was a reduction in the number of newborns who evolved to death between periods A and C.
Resumo:
Objetivo: relatar a evoluo de uma srie de casos de gestao em mulheres previamente submetidas cirurgia de bypass gstrico para tratamento de obesidade grave. Mtodos: cinco casos consecutivos de gravidez aps gastroplastia ocorridos entre 2001 e 2004 foram avaliados. As pacientes tinham idade entre 30 e 34 anos e todas haviam sido submetidas cirurgia de Capella. Aspectos clnicos, laboratoriais e do acompanhamento materno e fetal foram considerados, durante o perodo gestacional e aps o parto. Foi realizada reviso da literatura internacional, por meio das bases de dados MEDLINE e Web of Science, utilizando os seguintes unitermos: gastroplasty, gastric bypass surgery, bariatric surgery e pregnancy. Resultados: todas as gestaes observadas foram nicas e no ocorreram complicaes obsttricas, durante o seguimento pr-natal e parto. Tambm no houve registro de recém-nascidos prematuros ou de baixo peso ao nascimento. Concluso: nossos dados sugerem que a gravidez aps gastroplastia segura para a me e feto. Entretanto, em virtude do limitado volume de informao disponvel sobre o tema, investigaes adicionais so necessrias para estabelecer recomendaes apropriadas com relao ao seguimento dessas gestaes _________________________________________________ABSTRACT Purpose: we report a small series of pregnant women who underwent gastric bypass surgery for severe obesity, with a review of the literature on this topic. Methods: five consecutive cases of pregnancy after gastroplasty between 2001 and 2004 were evaluated, and clinical, laboratory and therapeutic features were considered. Patients were 30 to 34 years old and all had been submitted to gastroplasty by the Capella technique. The outcomes for both the pregnant woman and the fetus were evaluated. A search of the English language literature was done through MEDLINE and Web of Science databases with the following terms: gastroplasty, gastric bypass surgery, bariatric surgery, and pregnancy. Results: all 5 pregnancies were singleton. No major obstetric complications were observed and there were no premature or lowbirth weight infants. Conclusion: our data suggest that pregnancy following gastroplasty is safe for mother and fetus. However, since information about this topic is limited, further investigations are required to establish appropriate recommendations concerning the follow-up of these pregnancies
Resumo:
Objetivo: analisar a relao entre a idade materna e a ocorrncia de resultados perinatais adversos na populao do Rio Grande do Norte. Mtodos: foram analisados os registros oficiais de 57.088 nascidos vivos no Estado do Rio Grande do Norte no ano de 1997. Os dados foram obtidos do Sistema de Informao sobre Nascidos Vivos do Ministrio da Sade. A populao estudada foi dividida em Grupos I, II e III, segundo a faixa etria materna: 10 a 19, 20 a 34 e 35 anos ou mais, respectivamente. As variveis analisadas foram: durao da gestao, peso ao nascer e tipo de parto. A anlise estatstica foi realizada utilizando-se o teste c2. Resultados: observamos uma maior incidncia de parto pr-termo no Grupo I (4,3 %), em comparao ao Grupo II (3,7%) (p = 0,0028). A taxa de cesariana foi menor nos Grupos I e III, em comparao ao Grupo II (p<0,0001). Evidenciamos freqncia significativamente maior de recém-nascidos de baixo peso nos Grupos I (8,4%) e III (8,3%), quando comparados ao Grupo II (6,5%) (p<0,0001). Concluses: a gravidez nos extremos da vida reprodutiva esteve associada com maior freqncia de parto pr-termo e baixo peso ao nascer, entretanto, com relao ao tipo de parto, foi observada maior freqncia de parto normal do que no grupo de gestantes com idade entre 20 e 34 anos
Resumo:
relatar a evoluo de uma srie de casos de gestao em mulheres previamente submetidas cirurgia de bypass gstrico para tratamento de obesidade grave. Mtodos: cinco casos consecutivos de gravidez aps gastroplastia ocorridos entre 2001 e 2004 foram avaliados. As pacientes tinham idade entre 30 e 34 anos e todas haviam sido submetidas cirurgia de Capella. Aspectos clnicos, laboratoriais e do acompanhamento materno e fetal foram considerados, durante o perodo gestacional e aps o parto. Foi realizada reviso da literatura internacional, por meio das bases de dados MEDLINE e Web of Science, utilizando os seguintes unitermos: gastroplasty, gastric bypass surgery, bariatric surgery e pregnancy. Resultados: todas as gestaes observadas foram nicas e no ocorreram complicaes obsttricas, durante o seguimento pr-natal e parto. Tambm no houve registro de recém-nascidos prematuros ou de baixo peso ao nascimento. Concluso: nossos dados sugerem que a gravidez aps gastroplastia segura para a me e feto. Entretanto, em virtude do limitado volume de informao disponvel sobre o tema, investigaes adicionais so necessrias para estabelecer recomendaes apropriadas com relao ao seguimento dessas gestaes
Resumo:
Objetivo: relatar a evoluo de uma srie de casos de gestao em mulheres previamente submetidas cirurgia de bypass gstrico para tratamento de obesidade grave. Mtodos: cinco casos consecutivos de gravidez aps gastroplastia ocorridos entre 2001 e 2004 foram avaliados. As pacientes tinham idade entre 30 e 34 anos e todas haviam sido submetidas cirurgia de Capella. Aspectos clnicos, laboratoriais e do acompanhamento materno e fetal foram considerados, durante o perodo gestacional e aps o parto. Foi realizada reviso da literatura internacional, por meio das bases de dados MEDLINE e Web of Science, utilizando os seguintes unitermos: gastroplasty, gastric bypass surgery, bariatric surgery e pregnancy. Resultados: todas as gestaes observadas foram nicas e no ocorreram complicaes obsttricas, durante o seguimento pr-natal e parto. Tambm no houve registro de recém-nascidos prematuros ou de baixo peso ao nascimento. Concluso: nossos dados sugerem que a gravidez aps gastroplastia segura para a me e feto. Entretanto, em virtude do limitado volume de informao disponvel sobre o tema, investigaes adicionais so necessrias para estabelecer recomendaes apropriadas com relao ao seguimento dessas gestaes _________________________________________________ABSTRACT Purpose: we report a small series of pregnant women who underwent gastric bypass surgery for severe obesity, with a review of the literature on this topic. Methods: five consecutive cases of pregnancy after gastroplasty between 2001 and 2004 were evaluated, and clinical, laboratory and therapeutic features were considered. Patients were 30 to 34 years old and all had been submitted to gastroplasty by the Capella technique. The outcomes for both the pregnant woman and the fetus were evaluated. A search of the English language literature was done through MEDLINE and Web of Science databases with the following terms: gastroplasty, gastric bypass surgery, bariatric surgery, and pregnancy. Results: all 5 pregnancies were singleton. No major obstetric complications were observed and there were no premature or lowbirth weight infants. Conclusion: our data suggest that pregnancy following gastroplasty is safe for mother and fetus. However, since information about this topic is limited, further investigations are required to establish appropriate recommendations concerning the follow-up of these pregnancies
Resumo:
Objetivo: analisar a relao entre a idade materna e a ocorrncia de resultados perinatais adversos na populao do Rio Grande do Norte. Mtodos: foram analisados os registros oficiais de 57.088 nascidos vivos no Estado do Rio Grande do Norte no ano de 1997. Os dados foram obtidos do Sistema de Informao sobre Nascidos Vivos do Ministrio da Sade. A populao estudada foi dividida em Grupos I, II e III, segundo a faixa etria materna: 10 a 19, 20 a 34 e 35 anos ou mais, respectivamente. As variveis analisadas foram: durao da gestao, peso ao nascer e tipo de parto. A anlise estatstica foi realizada utilizando-se o teste c2. Resultados: observamos uma maior incidncia de parto pr-termo no Grupo I (4,3 %), em comparao ao Grupo II (3,7%) (p = 0,0028). A taxa de cesariana foi menor nos Grupos I e III, em comparao ao Grupo II (p<0,0001). Evidenciamos freqncia significativamente maior de recém-nascidos de baixo peso nos Grupos I (8,4%) e III (8,3%), quando comparados ao Grupo II (6,5%) (p<0,0001). Concluses: a gravidez nos extremos da vida reprodutiva esteve associada com maior freqncia de parto pr-termo e baixo peso ao nascer, entretanto, com relao ao tipo de parto, foi observada maior freqncia de parto normal do que no grupo de gestantes com idade entre 20 e 34 anos
Resumo:
O presente estudo teve como objetivo geral elaborar uma proposta de processo de enfermagem contemplando histricos de enfermagem, diagnsticos de enfermagem, prescrio de cuidados de enfermagem para gestantes e purperas em Unidade de Internao Obsttrica luz de Horta, fundamentada em NANDA e, como objetivos especficos: identificar os dados clnico-obsttricos mais frequentes das gestantes em Unidade de Internao Obsttrica; identificar os dados clnico-obsttricos mais frequentes das purperas em Unidade de Internao Obsttrica; identificar os diagnsticos de enfermagem a partir dos dados clnico-obsttricos mais frequentes das gestantes em Unidade de Internao Obsttrica; identificar os diagnsticos de enfermagem a partir dos dados clnico-obsttricos mais frequentes das purperas em Unidade de Internao Obsttrica; elaborar modelos de histrico de enfermagem e de prescrio de cuidados de enfermagem para os diagnsticos de enfermagem identificados; e obter o consenso dos enfermeiros assistenciais da Unidade de Internao Obsttrica sobre a proposta construda. Trata-se de pesquisa qualitativa, descritiva e exploratria, realizada em uma Unidade de Internao Obsttrica de um hospital universitrio do Sul do Brasil. Realizou-se uma consulta documental em 148 pronturios, com vistas identificao dos diagnsticos e cuidados de enfermagem, baseados, respectivamente, na taxonomia II da North American Diagnosis Association 2009-2011 e da Nursing Intervention Classification. Desenvolveu-se um modelo de histrico de enfermagem para gestante/purpera e outro para o recm-nascido. No total, identificaram-se 26 diagnsticos de enfermagem, assim distribudos: nove direcionados s gestantes; nove, s purperas; dois, ao binmio me/filho; seis, ao recm-nascido. A anlise foi realizada por meio da apresentao da proposta construda e discusso com base em autores da rea. Com isso, almeja-se contribuir para direcionar o cuidado de enfermagem s necessidades das gestantes, purperas, binmios me/filho e recém-nascidos nesse microcenrio, favorecendo a educao em sade, a identificao precoce e a preveno de complicaes. Permanecem lacunas quanto s necessidades psicoespirituais, visto que elas no foram abordadas nos resultados. Assim, essa proposta de Processo de Enfermagem em Unidade Obsttrica contemplando histricos, diagnsticos e cuidados de enfermagem mantm em aberto o aperfeioamento do modelo, visando incluso de outros diagnsticos de enfermagem, de forma a aproximar-se de um cuidado mais holstico.
Resumo:
relatar a evoluo de uma srie de casos de gestao em mulheres previamente submetidas cirurgia de bypass gstrico para tratamento de obesidade grave. Mtodos: cinco casos consecutivos de gravidez aps gastroplastia ocorridos entre 2001 e 2004 foram avaliados. As pacientes tinham idade entre 30 e 34 anos e todas haviam sido submetidas cirurgia de Capella. Aspectos clnicos, laboratoriais e do acompanhamento materno e fetal foram considerados, durante o perodo gestacional e aps o parto. Foi realizada reviso da literatura internacional, por meio das bases de dados MEDLINE e Web of Science, utilizando os seguintes unitermos: gastroplasty, gastric bypass surgery, bariatric surgery e pregnancy. Resultados: todas as gestaes observadas foram nicas e no ocorreram complicaes obsttricas, durante o seguimento pr-natal e parto. Tambm no houve registro de recém-nascidos prematuros ou de baixo peso ao nascimento. Concluso: nossos dados sugerem que a gravidez aps gastroplastia segura para a me e feto. Entretanto, em virtude do limitado volume de informao disponvel sobre o tema, investigaes adicionais so necessrias para estabelecer recomendaes apropriadas com relao ao seguimento dessas gestaes
Resumo:
Objective: To investigate the maternal perception of the experience in the first phase of the Kangaroo Mother Care Method in the Neonatal Intensive Care Unit (NICU). Methods: Descriptive, exploratory and qualitative study, conducted in the period from August to October 2014, with 10 mothers of newborn preterm (NP) infants, who were admitted to the Maternity School Assis Chateaubriand (MEAC) in Fortaleza, Brazil, and had received skin-to-skin contact through the Kangaroo Care Method during hospitalization in the NICU. Data was collected by semi-structured interview, directed by guiding questions. Content analysis was used for processing the data, being established four categories: The bond and the attachment, Maternal competence, The fear of losing the baby and The importance of the multidisciplinary team. Results: The Kangaroo Care Method is a safe and pleasurable practice for mothers and relatives, in addition to providing social and psychoaffective benefits, found in the imagery of the method institutionalization and in the mothers experience when properly supported. The meanings of the maternal feelings of apprehension as a result of the first physical contact with the hospitalized child can be evidenced. Regarding the evaluation of its clinical practice, this method has provided better development of the newborn infant and a reduction in hospital stay. Conclusion: The study shows relevance, since the evidence of the maternal perception of this method supports its establishment as a mandatory practice in maternity hospitals, in view of the benefits to the mother and the neonate.
Resumo:
As farinhas infantis, alimentos que se destinam a recém-nascidos e crianas at idade pr-escolar, devem satisfazer todas as necessidades nutricionais que se verificam durante o perodo de crescimento e desenvolvimentos fsico e mental desta faixa etria. Desta forma, so frequentemente adicionadas prmisturas de vitaminas e minerais durante a sua produo (fortificao), de maneira a que a quantidade adicionada e a composio do produto final sejam concordantes com a legislao comunitria em vigor. A implementao, na linha de produo, de mtodos alternativos de anlise amigos do ambiente e passveis de obter resultados rpidos acerca da composio nutricional dos produtos alimentares, mesmo antes destes serem embalados, permite redues de tempo, custos e um melhor controlo do processo de produo. A espectroscopia FT-NIR e a espectroscopia de XRF so tcnicas que permitem a quantificao de micronutrientes e possuem caractersticas fundamentais ao controlo rpido de processos. Neste trabalho foram desenvolvidos modelos de calibrao para quantificao de zinco, por espectroscopia de XRF, em trs receitas de pr-misturas de vitaminas e minerais. Construram-se dois modelos de calibrao, um com um R2 de 0,990 e um SEC de 26,624 mg/100g e outro com um R2 de 0,927 e um SEC de 18,838 mg/100g. Estes resultados indicam que os modelos de calibrao construdos so adequados e podem ser usados na determinao rpida do teor de zinco em pr-misturas de vitaminas e minerais. Foram tambm verificadas as rectas de calibrao existentes para quantificao de clcio e ferro por espectroscopia de XRF e quantificao de vitamina C por espectroscopia FT-NIR para aplicao nas novas receitas de pr-misturas de vitaminas e minerais.
Resumo:
Enquadramento: Devido elevada prevalncia de abandono precoce da amamentao, diversas instituies (e.g., OMS, UNICEF) tm-se preocupado em proteger, promover e apoiar o aleitamento materno um pouco por todo o mundo, defendendo a sua exclusividade durante os primeiros seis meses de vida do beb, complementado a partir dessa idade pela introduo de alimentos e mantido at aos 2 anos de idade ou mais, se esse for o desejo da me. Objetivos: Avaliar os conhecimentos das mes sobre a amamentao; identificar as dificuldades vivenciadas pelas mes em relao amamentao; analisar a relao entre as variveis sociodemogrficas e obsttricas das mes e os seus conhecimentos e dificuldades sobre a amamentao. Metodologia: Estudo quantitativo, descritivo, analtico, correlacional e de corte transversal, conduzido numa amostra no probabilstica de 100 mes de recém-nascidos e/ou lactentes at 1 ano de vida, internadas no servio de obstetrcia, neonatologia, pediatria e urgncia de uma Unidade Local de Sade do Norte do Pas. As inquiridas tinham idade mnima de 16 e mxima de 43 anos (M=30,77; Dp=6,356). Foi utilizado um questionrio de caraterizao sociodemogrfica e um questionrio de autorrelato da vivncia das mes sobre a amamentao, desenvolvido por Sousa (2014). Resultados: Os principais resultados mostraram que 50% das mes consideram possuir bons conhecimentos relativos amamentao, porm, apenas 39% foram classificadas com bons conhecimentos, enquanto 52% revelaram dificuldades elevadas. Os conhecimentos foram avaliados tendo por base a sinalizao correta da importncia da amamentao na primeira hora de vida do beb por 93% das mes, exclusiva at aos 6 meses (28%), a composio do leite materno e composio imunolgica 93%, a maioria das mes considerou saber identificar os sinais da pega correta. Relativamente ao horrio da amamentao, 62% ainda considera correto amamentar de trs em trs horas e 14% defende que o beb deve mamar 10 minutos em cada mama. Os conhecimentos relacionaram-se significativamente com as mes com ensino superior (x2=17,828; p=0,00) e nas que se encontram a amamentar atualmente (UMW=278,000; p=0,01). As dificuldades mais prevalentes associaram-se s fissuras (56,4%), ingurgitamento mamrio (38,5%), mastite (3,8%), dor (40%) e dificuldade na pega (60%), tendo-se constatado diferenas estatisticamente significativas associadas ao ingurgitamento mamrio, mastite e abcesso mamrio. Exerce influncia nas dificuldades das mes, ter sido informada pelo obstetra (UMW=324,000; p=0,02) e no ter expectativas na primeira amamentao (UMW=521,500; p=0,01). Concluso: O estudo revela bons conhecimentos globais mas dificuldades elevadas, sendo estas as comumente referenciadas noutros estudos. Face a isto, mantem-se necessrio apoiar nas dificuldades vividas durante a amamentao, adequando as estratgias de promoo, proteo e apoio ao AM, para que os resultados possam ser bem-sucedidos. Palavras-chave: aleitamento materno, conhecimentos, dificuldades.
Resumo:
The vitamins A and E are recognizably important in the initial stages of life and the newborn depends on nutritional adequacy of breast milk to meet their needs. These vitamins share routes of transport to the tissues and antagonistic effects have been observed in animals after supplementation with vitamin A. This study aimed to verify the effect of maternal supplementation with vitamin A megadose (200,000 UI) in the immediate post-partum on the concentration of alpha-tocopherol in colostrum. Healthy parturient women attended at a public maternity natalensis were recruited for the study and divided into two groups: control (n = 37) and supplemented (n = 36). Blood samples of colostrum and milk were collected until 12 hours after delivery. The women of the supplemented group was administered a retynil palmitate capsule and 24 hours after the first collection was obtained the 2nd sample of colostrum in two groups for analysis of retinol and alpha-tocopherol in milk. The mean retinol concentration of 50,7 14,4 g/dL (Mean standard deviation) and alpha-tocopherol of 1217.4 959 mg/dL in the serum indicate the nutritional status biochemical appropriate. Supplementation with retynil palmitate resulted in increase not only retinol levels in the colostrum of the supplemented group (p = 0.002), but also the concentration of alpha-tocopherol (p = 0.04), changing from 1456.6 1095.8 mg/dL to 1804.3 1432.0 mg/dL (milk 0 and 24 respectively) compared to values in the control group, 984.6 750.0 mg/dL and 1175.0 730.8 mg/dL. The women had different responses to supplementation, influenced by baseline levels of retinol in colostrum. Those with previous by low levels of retinol in colostrum (<60 mg/dL) had increased the concentration of alpha-tocopherol in milk, whereas those with adequate levels (> 60 mg/dL), showed a reduction after supplementation. Supplementation with retinol palmitate is an important intervention in situations of high risk for vitamin A deficiency, when considering the need to maternal supplementation, since the excess vitamin can offer unfavorable interactions between nutrients essential for the mother-child group