A fisioterapia respiratória vem merecendo especial atenção por parte dos pesquisadores, em virtude de seu crescente aumento nos últimos anos. Entretanto, o conceito de que a fisioterapia respiratória além de ser benéfica, não apresenta efeitos deletérios para o recém-nascido (RN) ainda não é consenso. O objetivo deste estudo foi avaliar as repercussões da fisioterapia respiratória sobre a função cárdio-pulmonar em recém-nascidos pré-termo (RNPT) submetidos à ventilação mecânica. Realizou-se, então, um estudo prospectivo, incluindo RNPT com peso de nascimento inferior a 1500 gramas, submetidos à ventilação mecânica durante a primeira semana de vida. Os RN foram divididos em 2 grupos conforme o peso de nascimento: grupo MBP: peso entre 1000 e 1499 gramas e, grupo MMBP: peso inferior a 999 gramas. Foram excluídas as malformações congênitas graves, as síndromes genéticas e as situações clínicas em que a fisioterapia respiratória estava contra-indicada. A fisioterapia foi iniciada após a estabilidade clínica do RN, compreendendo o posicionamento, a vibração manual, os exercícios respiratórios e a aspiração endotraqueal. O estudo consistiu na determinação dos valores da freqüência cardíaca (FC-bpm), da saturação de oxigênio (SatO2 -%), da freqüência respiratória (FR-rpm) e da pressão arterial sistêmica (PA-mmHg), coletados entre o 3o e o 7o dia de vida, em 5 momentos diferentes: antes dos procedimentos de fisioterapia respiratória (T0), imediatamente após (T1), 5 minutos após os procedimentos fisioterapêuticos (T2), imediatamente após a aspiração endotraqueal (T3) e 5 minutos após a aspiração (T4). A análise dos resultados foi realizada através dos testes t- Student e medidas repetidas ANOVA one-way, sendo considerado diferença p<0,05. Foram estudados 21RNPT no grupo MBP e, 21 RNPT no grupo MMBP. Na população estudada as freqüências cardíaca e respiratória, a saturação de oxigênio e a pressão arterial sistêmica (sistólica, diastólica e média) permaneceram dentro dos valores fisiológicos após os procedimentos fisioterapêuticos e de aspiração endotraqueal, embora tenham havido algumas diferenças significativas. O procedimento de aspiração endotraqueal teve maior influência na função cárdiopulmonar do que os procedimentos fisioterapêuticos, sugerindo ser a aspiração um fator determinante das repercussões deletérias da função cárdio-pulmonar em RNPT, devendo ser empregada cautelosamente. / Respiratory physiotherapy has deserved special attention of the researchers due to its increasing practice. However, the concept that besides being effective, the respiratory physiotherapy brings no deleterious effects to the newborn (NB) is not a consensus yet. This study aims to evaluate the repercussions of respiratory physiotherapy on the cardiopulmonary function of preterm newborns (PTNB), subjected to mechanical ventilation. A prospective study was carried out, including PTNB of birth weight lower than 1500g subjected to mechanical ventilation along their first week of life. The NIs were divided into 2 groups, according to their birth weight: VLBW group: weight between 1000 and 1499g and VVLBW group, birth weight lower that 999g. The severe congenital malformations, the genetic syndromes and the clinical situations where the respiratory physiotherapy was not-advisable, were excluded. Physiotherapy was started after the NI?s clinical stability, including positioning, manual vibration, respiratory exercises and endotracheal aspiration.This study consisted of the determination of the heart rate values (HR-bpm), the oxygen saturation (SatO2 -%), of the respiratory frequency (RF-bpm) and of the systemic arterial pressure (SAP-mmHg), collected between the third and the seventh days of the infant?s life in five different moments: before the procedures of respiratory physiotherapy (T0), immediately after (T1), five minutes after the physiotherapeutic procedures (T2), immediately after the endotracheal aspiration (T3) and five minutes after aspiration (T4). The analysis of the results was carried out by means of t-Student?s tests and one-way ANOVA repeated measures, being considered a difference of p<0.05. 21 PTNB in group VLBW and 21 PTNB in group VVLBW have been studied. In the studied population, the heart rate and respiratory frequencies, the oxygen saturation and the systemic arterial pressure (systolic, diastolic and mean) remained within the physiological values after the physiotherapeutic procedures and endotracheal aspiration, though there have been some significant differences. The endotracheal aspiration procedure has shown more influence on the cardiopulmonary function than the physiotherapeutic procedures, suggesting that aspiration is a determining factor of the deleterious repercussions on the cardiopulmonary function of PTNB, therefore, having to be used cautiously

Os recém-nascidos de muito baixo peso ao nascer alcançam taxas de sobrevivência cada vez maiores. No entanto, eles ainda apresentam problemas como déficit de crescimento, atrasos do desenvolvimento, baixa prevalência de aleitamento materno exclusivo e dificuldades de vinculação afetiva com a família. Essa problemática resulta da condição de nascimento dessas crianças, das conseqüências do tratamento intensivo necessário à sua sobrevivência, e das peculiaridades da assistência neonatal tradicional cujos procedimentos impõem a separação entre a mãe e o bebê. A observação de aspectos relativos aos problemas citados sinaliza que algumas dessas dificuldades poderiam ser atenuadas, quando não resolvidas, por um modelo de assistência neonatal que privilegiasse a interação entre a mãe e o bebê. Visando a elucidar tal questão, compararam-se os resultados obtidos com setenta bebês, divididos em dois grupos, um assistido pelo método Mãe-canguru e outro pelo método Tradicional de assistência neonatal. Foi realizado um estudo de coorte prospectivo que contemplou duas abordagens: uma análise epidemiológica dos dados objetivos referentes às características comparáveis entre os dois grupos, ou seja, atributos maternos, dados sobre a gestação, o parto e o nascimento, eventos da evolução clínica, parâmetros do crescimento e do desenvolvimento e marcos do processo de aleitamento materno; além da outra abordagem que se constituiu como uma análise compreensiva dos dados subjetivos através do método fenomenológico. Constatou-se que o crescimento das crianças estudadas manteve-se aquém da referência ideal preconizada, a saber, o crescimento intra-uterino, sendo que as medidas antropométricas mostraram-se menores entre as crianças do método Canguru. As diferenças encontradas entre os dois métodos quanto ao desenvolvimento neurossocial não foram estatisticamente significativas. O método Canguru favoreceu a prática de aleitamento materno exclusivo, mesmo após a alta hospitalar. A compreensão e a interpretação dos depoimentos das mães, através do método fenomenológico, permitiram que se vislumbrassem as repercussões dessa situação sobre a função materna, e as suas conseqüências sobre o desenvolvimento e a prevalência do aleitamento materno. Deslindou-se, assim, a influência direta da qualidade da interação entre a mãe e o bebê sobre a experiência de se tornar mãe nessas circunstâncias. Nessa perspectiva, concluiu-se que o cuidado dispensado a recém-nascidos de muito baixo peso ao nascer exige, além do emprego da alta tecnologia, a priorização da permanência da mãe junto ao filho e a aptidão da equipe de assistência neonatal para abordar o bebê e a mãe em conjunto, como componentes de um sistema que se distinguem entre si, mas não se separam. / Very low birthweight infants have achieved increasing survival rates over time. However, they still suffer from problems such as growth deficit, developmental delays, low exclusive breastfeeding prevalence and difficulties with the bond formation process. These problems result from birth circumstances, consequences of survival-necessary intensive care and peculiarities of traditional neonatal care, whose procedures impose a prolonged separation between mother and baby. Observation of aspects relative to these problems indicates that some of those difficulties might be lessened, if not altogether solved, by a neonatal care model that favors the mother-child interaction. Aiming to clarify this matter, a comparison of results obtained for seventy babies was carried out. Infants were divided in two groups, one treated by means of the Kangaroo Mother Method and the other by means of the Traditional Neonatal Care Method. A prospective cohort study was carried out which included two approaches. The first approach was an epidemiological analysis of objective data concerning comparable characteristics of the two groups, such as maternal characteristics, data about pregnancy, labor and birth, clinical evolution events, developmental and growth parameters and landmarks of the breastfeeding process. The second approach was a comprehensive study of subjective data by means of the Phenomenological Method. It was found that growth of studied children was consistently below intrauterine growth, the established ideal. Antropometrical measures were smaller for children in the Kangaroo Mother Method group than for those treated by means of the Traditional Method. No statistically meaningful differences were found concerning neurosocial development. The Kangaroo Mother Method was found to favor the practice of exclusive breastfeeding even after child discharge. Phenomenological comprehension and interpretation of oral accounts given by the mothers of studied infants about their experiences with their preterm children revealed the repercussions of this situation on maternal function and the resulting consequences to development and breastfeeding prevalence. The direct influence that the quality of interaction between mother and baby has on the experience of becoming a mother under such circumstances was thereby unveiled. Under this perspective, it was concluded that care given to very low birthweight infants requires, in addition to the employment of high technology, that the staying of mothers beside their infants be prioritized and that the neonatal care team be made able to handle mother and infant as a compound unit, as two components of a system that are distinct, yet not separate.

Diss. (sammanfattning) Umeå : Umeå universitet, 2009. / Härtill 4 uppsatser. Även tryckt utgåva.

There is no consensus about the hemodynamic significance and, therefore, the need to treat a persistent ductus arteriosus in preterm newborns. Since the diagnosis of a hemodynamically significant persistent ductus arteriosus (hsPDA) is made by a summary of non-uniform echo-criteria in combination with the clinical deterioration of the preterm neonate, standardized clinical and ultrasound scoring systems are needed. The objective of this study was the development of a clinical score for the detection and follow-up of hsPDA. In this observational cohort study of 154 preterm neonates (mean gestational age 28.1 weeks), clinical signs for the development of hsPDA were recorded in a standardized score and compared to echocardiography. Analyzing the significance of single score parameters compared to the diagnosis by echocardiography, we developed a short clinical score (calculated sensitivity 84% and specificity 80%). In conclusion, this clinical diagnostic PDA score is non-invasive and quickly to implement. The continuous assessment of defined clinical parameters allows for a more precise diagnosis of hemodynamic significance of PDA and, therefore, should help to detect preterm neonates needing PDA-treatment. The score, therefore, allows a more targeted use of echocardiography in these very fragile preterm neonates.

This diploma thesis should sketch quantitative research of early enteral nutrition at newborns with low birth weight under 1500 grams at specialized department - neonatology in České Budějovice. Research in this diploma thesis is focused on evaluating of implemetation level according to current recommendations neonatology for the start of early enteral nutrition at premature babies. In the theoretical part of the diploma thesis we try to describe all things that include the issue of premature babies care. Next chapters deal with differences of premature baby in relation to nutrition. The nutrition of the newborn with very low birth weight is provided immediately after parenteral delivery. Quantitative research definately prefers the start of enteral nutrition in the first few hours after delivery. Goal of this strategy is to completely replace the parenteral nutrition as soon as possible. Goal of this diploma thesis is to descibe quantitative research with implementing of the enteral nutrition at newborns with birth weight under 1500 grams at specialized neonatology departments and to identify the most important differences from current recommendations for this field of care. Considering the set goal there was used the quantitative research for this diploma thesis. To get the data to create the research, secundar analysis of the data from nursing documentation of our research team was used. Through the quantitative research we try to demonstrate lack of starts with early enteral nutrition at premature babies with birth weight under 1500 grams in the 2012 and 2013. Secundar analysis of the date was made during my working experience at neonatology department in České Budějovice. Data needed for this research were systematically written into prepared chart created in Microsoft Excel. After entering all necessary data in the table, they were subsequently created graphs that reflect the real situation examined issues. After identifying the most significant differences from the current recommendations for this area of care deficiencies are subsequently provided to the department of neonatology in the České Budějovice for future improvement strategy early initiation of enteral nutrition in premature infants in this weight category, was written Decalogue of practical recommendations for optimization of enteral nutrition for preterm infants nurses working in the neonatal intensive care. The research file was created by 139 respondents (newborns with low birth weight under 1500 grams). This file is created by newborns born from 1 January 2012 to 31 December 2013 which means during two years.

Objetivos: avaliar a prevalência de alterações auditivas em recém-nascidos de muito baixo peso na Unidade de Tratamento Intensivo Neonatal do Hospital de Clínicas de Porto Alegre e estudar as variáveis que possam estar relacionadas com as alterações da acui-dade auditiva. Métodos: foi realizado um estudo transversal que incluiu todos os recém-nascidos de muito baixo peso admitidos na Unidade de Tratamento Intensivo Neonatal do Hospital de Clínicas de Porto Alegre no período de 1o de setembro de 2001 a 31 de janeiro de 2002. To-dos os pacientes foram submetidos ao exame de otoemissão acústica evocada por produto de distorção no momento da alta hospitalar. O exame foi repetido em 30 dias quando havia alte-ração no primeiro exame. Quando o paciente apresentava o exame de otoemissão acústica al-terada em duas ocasiões, era realizado o potencial auditivo evocado cerebral, considerado al-terado a partir de 35 dB NA. Resultados: foram estudados 96 recém-nascidos. Seis tiveram tanto o exame de otoemissão acústica quanto o potencial auditivo evocado cerebral alterados. A média da idade gestacional foi de 31,5 ± 2,6 semanas, o peso de nascimento variou de 640 a 1.500 g e 57,3% dos pacientes eram do sexo feminino. A idade gestacional e o índice de Apgar no 5o minuto foram inferiores no grupo otoemissão acústica e potencial auditivo evocado cerebral alterados em relação aos demais grupos, atingindo significância limítrofe. Conclusões: a prevalência de perda auditiva nos recém-nascidos de muito baixo peso da Unidade de Tratamento Intensivo Neonatal do Hospital de Clínicas de Porto Alegre foi de 6,3%, tendo sido observadas associações de significância limítrofe com idade gestacional e índice de Apgar no 5o minuto. / Objectives: to evaluate the prevalence of hearing loss in very low birth weight patients in the Neonatal Intensive Care Unit of the Hospital de Clínicas de Porto Alegre and to study the variables that can be related to hearing loss. Methods: a transversal study was carried through including all very low birth weight neonates admitted in the Neonatal Intensive Care Unit of the Hospital de Clínicas de Porto Alegre during September 1, 2000 to January 31, 2002. All patients were undergone to the distortion evoked otoacoustic emission test in the hospital discharge. When the patient presented alteration in this test, it was repeated in 30 days. However, when the patient who presented pathologic otoacoustic emission on two ocasions was undergone to the auditory evoked brain response. This test was considered abnormal from 35 dB NA. Results: we studied 96 neonates. Six children presented alteration in the distortion evoked otoacoustic emission test as well in the auditory evoked brain response. The children age average was 31.5 ± 2.6 weeks, their birth weight was between 640 g and 1,500 g, and 57.3% of the patients were female. The gestational age and the Apgar score at 5 minutes were inferior in the otoacoustic emission and auditory evoked brain response abnormal group related to the other groups, reaching bordering significance. Conclusions: the hearing loss prevalence of the very low birth weight neonates from the Neonatal Intensive Care Unit of the HCPA was 6.3%, and it was observed bordering significance associations related to gestational age and 5 minutes Apgar score.

Objetivos: avaliar a prevalência de alterações auditivas em recém-nascidos de muito baixo peso na Unidade de Tratamento Intensivo Neonatal do Hospital de Clínicas de Porto Alegre e estudar as variáveis que possam estar relacionadas com as alterações da acui-dade auditiva. Métodos: foi realizado um estudo transversal que incluiu todos os recém-nascidos de muito baixo peso admitidos na Unidade de Tratamento Intensivo Neonatal do Hospital de Clínicas de Porto Alegre no período de 1o de setembro de 2001 a 31 de janeiro de 2002. To-dos os pacientes foram submetidos ao exame de otoemissão acústica evocada por produto de distorção no momento da alta hospitalar. O exame foi repetido em 30 dias quando havia alte-ração no primeiro exame. Quando o paciente apresentava o exame de otoemissão acústica al-terada em duas ocasiões, era realizado o potencial auditivo evocado cerebral, considerado al-terado a partir de 35 dB NA. Resultados: foram estudados 96 recém-nascidos. Seis tiveram tanto o exame de otoemissão acústica quanto o potencial auditivo evocado cerebral alterados. A média da idade gestacional foi de 31,5 ± 2,6 semanas, o peso de nascimento variou de 640 a 1.500 g e 57,3% dos pacientes eram do sexo feminino. A idade gestacional e o índice de Apgar no 5o minuto foram inferiores no grupo otoemissão acústica e potencial auditivo evocado cerebral alterados em relação aos demais grupos, atingindo significância limítrofe. Conclusões: a prevalência de perda auditiva nos recém-nascidos de muito baixo peso da Unidade de Tratamento Intensivo Neonatal do Hospital de Clínicas de Porto Alegre foi de 6,3%, tendo sido observadas associações de significância limítrofe com idade gestacional e índice de Apgar no 5o minuto. / Objectives: to evaluate the prevalence of hearing loss in very low birth weight patients in the Neonatal Intensive Care Unit of the Hospital de Clínicas de Porto Alegre and to study the variables that can be related to hearing loss. Methods: a transversal study was carried through including all very low birth weight neonates admitted in the Neonatal Intensive Care Unit of the Hospital de Clínicas de Porto Alegre during September 1, 2000 to January 31, 2002. All patients were undergone to the distortion evoked otoacoustic emission test in the hospital discharge. When the patient presented alteration in this test, it was repeated in 30 days. However, when the patient who presented pathologic otoacoustic emission on two ocasions was undergone to the auditory evoked brain response. This test was considered abnormal from 35 dB NA. Results: we studied 96 neonates. Six children presented alteration in the distortion evoked otoacoustic emission test as well in the auditory evoked brain response. The children age average was 31.5 ± 2.6 weeks, their birth weight was between 640 g and 1,500 g, and 57.3% of the patients were female. The gestational age and the Apgar score at 5 minutes were inferior in the otoacoustic emission and auditory evoked brain response abnormal group related to the other groups, reaching bordering significance. Conclusions: the hearing loss prevalence of the very low birth weight neonates from the Neonatal Intensive Care Unit of the HCPA was 6.3%, and it was observed bordering significance associations related to gestational age and 5 minutes Apgar score.

A sobrevivência de recém-nascidos pré-termo de muito baixo peso (RNPT MBP) aumentou marcadamente nas últimas décadas, mas não acompanhada por redução das taxas de morbidade relacionadas à prematuridade. O parto prematuro é apontado como um importante fator de desajuste no equilíbrio emocional materno e nas suas relações familiares e sociais. O prejuízo emocional materno representa potencial risco ao desenvolvimento neuropsicológico da criança. Mães de RNPT MBP apresentam maior incidência de sintomas de ansiedade e depressão, bem como pior percepção de bem-estar, do que mães de recém-nascidos a termo (RNT). No entanto, ainda é pouco conhecida a associação entre as comorbidades relacionadas à prematuridade (displasia broncopulmonar, retinopatia e hemorragia peri-intraventricular) e a intensidade de sintomas depressivos maternos. O objetivo do presente estudo foi verificar a intensidade de sintomas depressivos em mães de RNPT MBP durante 36 meses após o parto e sua possível associação com características sociodemográficas, clínicas e qualidade de vida das mães e com características clínicas dos RNPT MBP. Setenta e cinco mães de RNPT (≤ 34 semanas de idade gestacional) MBP (peso ao nascer ≤ 1.500g) internados numa unidade de terapia intensiva neonatal (UTIN) participaram de um estudo longitudinal e responderam ao Inventário de Depressão de Beck (IDB) e ao WHOQOL-abreviado, em seis momentos ao longo de 36 meses após o parto. A análise fatorial foi utilizada para identificar possíveis clusters do IDB e a regressão linear múltipla para avaliar a contribuição de cada variável independente na variação do escore global do IDB. A análise fatorial do IDB identificou a presença de dois fatores: baixa autoestima / insatisfação e sintomas somáticos. As medianas dos escores do IDB foram maiores (p = 0,03) no momento da alta materna (9,0; 0-56) em comparação com os obtidos 6 meses pós-parto (6,0; 0-27), mantendo-se estáveis com doze (5,0; 0-36), dezoito (7,0; 0-33), 24 (7,0; 0-33) e 36 (6,5; 0-34) meses. As medianas dos escores do cluster sintomas somáticos foram maiores (p = 0,00) no momento da alta materna (6,0; 0-23) e aos seis meses (5,0; 0-17) do que doze (4,0; 0-11), dezoito (3,0; 0-13), 24 (3,5; 0-16) e 36 (3,0; 0-15) meses após o parto. Os modelos da regressão explicaram grande parte da variação dos escores do IDB em todos os períodos do estudo (0,19 ≤ R2 ajustado ≤ 0,64; p < 0,01). Os domínios do WHOQOL-abreviado (físico, psicológico, social e meio ambiente) foram as variáveis que explicaram as variações do escore global do IDB (-0,34 ≤β≤-0,12; p < 0,01). Mães de RNPT MBP apresentaram maior intensidade de sintomas depressivos no momento da sua alta hospitalar. A presença de sintomas depressivos associa-se, sobretudo, com pior qualidade de vida em mães de RNPT MBP. / The survival rate of very low birth weight preterm infants (VLBW) has increased markedly in recent decades but has not been accompanied by a reduction in prematurity related morbidities. Preterm birth is reported as an important factor of imbalance in maternal emotional health and in their family and social relationships. Maternal emotional impairment represents a potential risk to child's neuropsychological development. Mothers of VLBW infants have a higher incidence of anxiety and depression symptoms as well as a worse perception of well-being than mothers and full-term infants. However, the association between comorbidities related to prematurity (bronchopulmonary dysplasia, retinopathy and peri-intraventricular hemorrhage) and the severity of maternal depressive symptoms are still unknown. The objective of the present study was to verify the intensity of depressive symptoms in mothers of VLBW infants for 36 months after delivery and its possible association with mothers’ quality of life and sociodemographic and clinical characteristics and with VLBW infants’ clinical characteristics. Seventy five mothers of VLBW infants (≤ 34 gestational age weeks and birth weight ≤ 1,500g) admitted to a neonatal intensive care unit (NICU) participated in a longitudinal study and responded to the Beck Depression Inventory (BDI) and WHOQOL-Bref, at six times over 36 months postpartum. The factorial analysis was used to identify possible BDI clusters and multiple linear regression was used to evaluate the contribution of each independent variable in the variation of the overall BDI score. The BDI factorial analysis identified the presence of two factors: low self-esteem / dissatisfaction and somatic symptoms. Mothers’ median BDI scores were higher (p = 0.03) at discharge (9.0; 0-56) than 6 months postpartum (6.0; 0-27) and remained stable with twelve (5.0, 0-36), eighteen (7.0, 0-33), 24 (7.0, 0-33) and 36 (6.5, 0-34) months. The somatic symptoms cluster meadian scores were higher (p = 0.00) at the time of maternal discharge (6.0, 0-23) and at six months (5.0; 0-17) than twelve (4, 0, 0-11), eighteen (3.0; 0-13), 24 (3.5; 0-16) and 36 (3,0; 0-15) months postpartum. The regression models explained a large part of the BDI scores variation in all study periods (0.19 ≤ adjusted R2 ≤ 0.64, p <0.01). The WHOQOL-Bref domains (physical, psychological, social and environment) were the variables that explained the variations in the overall BDI scores (-0.34 ≤β≤-0.12; p <0.01). Mothers of VLBW infants present greater intensity of depressive symptoms at the moment of their hospital discharge. The presence of depressive symptoms is mainly associated with poorer quality of life in VLBW infants’ mothers. / Tese (Doutorado)

Objetivos: avaliar a prevalência de alterações auditivas em recém-nascidos de muito baixo peso na Unidade de Tratamento Intensivo Neonatal do Hospital de Clínicas de Porto Alegre e estudar as variáveis que possam estar relacionadas com as alterações da acui-dade auditiva. Métodos: foi realizado um estudo transversal que incluiu todos os recém-nascidos de muito baixo peso admitidos na Unidade de Tratamento Intensivo Neonatal do Hospital de Clínicas de Porto Alegre no período de 1o de setembro de 2001 a 31 de janeiro de 2002. To-dos os pacientes foram submetidos ao exame de otoemissão acústica evocada por produto de distorção no momento da alta hospitalar. O exame foi repetido em 30 dias quando havia alte-ração no primeiro exame. Quando o paciente apresentava o exame de otoemissão acústica al-terada em duas ocasiões, era realizado o potencial auditivo evocado cerebral, considerado al-terado a partir de 35 dB NA. Resultados: foram estudados 96 recém-nascidos. Seis tiveram tanto o exame de otoemissão acústica quanto o potencial auditivo evocado cerebral alterados. A média da idade gestacional foi de 31,5 ± 2,6 semanas, o peso de nascimento variou de 640 a 1.500 g e 57,3% dos pacientes eram do sexo feminino. A idade gestacional e o índice de Apgar no 5o minuto foram inferiores no grupo otoemissão acústica e potencial auditivo evocado cerebral alterados em relação aos demais grupos, atingindo significância limítrofe. Conclusões: a prevalência de perda auditiva nos recém-nascidos de muito baixo peso da Unidade de Tratamento Intensivo Neonatal do Hospital de Clínicas de Porto Alegre foi de 6,3%, tendo sido observadas associações de significância limítrofe com idade gestacional e índice de Apgar no 5o minuto. / Objectives: to evaluate the prevalence of hearing loss in very low birth weight patients in the Neonatal Intensive Care Unit of the Hospital de Clínicas de Porto Alegre and to study the variables that can be related to hearing loss. Methods: a transversal study was carried through including all very low birth weight neonates admitted in the Neonatal Intensive Care Unit of the Hospital de Clínicas de Porto Alegre during September 1, 2000 to January 31, 2002. All patients were undergone to the distortion evoked otoacoustic emission test in the hospital discharge. When the patient presented alteration in this test, it was repeated in 30 days. However, when the patient who presented pathologic otoacoustic emission on two ocasions was undergone to the auditory evoked brain response. This test was considered abnormal from 35 dB NA. Results: we studied 96 neonates. Six children presented alteration in the distortion evoked otoacoustic emission test as well in the auditory evoked brain response. The children age average was 31.5 ± 2.6 weeks, their birth weight was between 640 g and 1,500 g, and 57.3% of the patients were female. The gestational age and the Apgar score at 5 minutes were inferior in the otoacoustic emission and auditory evoked brain response abnormal group related to the other groups, reaching bordering significance. Conclusions: the hearing loss prevalence of the very low birth weight neonates from the Neonatal Intensive Care Unit of the HCPA was 6.3%, and it was observed bordering significance associations related to gestational age and 5 minutes Apgar score.

L'augmentation de la survie des grands prématurés fait de la réduction des séquelles dans cette population un enjeu majeur. Alors qu'il influence leur devenir, le support nutritionnel des grands prématurés échoue souvent à prévenir le déficit protéino-énergétique, les carences nutritionnelles, et les ralentissements de croissance, aggravant leur pronostic. Nos recherches investiguaient plusieurs axes des stratégies nutritionnelles actuelles, leurs limites ainsi que les perspectives d'améliorations : I) parentérales, II) entérales, III) préventions des complications, IV) évaluation de la croissance. Il s'agissait d'un ensemble d'études cliniques, qui révélaient : I) Des variations significatives d'apports parentéraux à l'intérieur des centres, ainsi qu'une sous-utilisation des lipides, participant au déficit protéino-énergétique précoce. Un impact des lipides sur la croissance, le développement cérébral, voire l'incidence de complications était suggéré. II) Des avantages de l'utilisation de lait maternel frais dans la 1ère semaine de vie sur la poursuite de l'allaitement des nouveau-nés hospitalisés, ainsi que des variations importantes de sa composition. Une augmentation des taux d'allaitement sur les périodes d'études révélait un effet bénéfique de la recherche, même « observationnelle », sur l'allaitement. III) Une augmentation du risque d'hyperglycémie en cas de diminution de la phosphatémie. IV) Des répercussions modérées de la restriction de croissance intra-utérine sur le neuro-développement des prématurés, malgré des réserves auxologiques. Ces travaux permettaient donc d'identifier plusieurs barrières, et d'envisager différentes stratégies d'amélioration du soutien nutritionnel. Ils soulignent la complexité et l'importance des liens entre nutrition, croissance et développement neurologique des enfants à risques. Des efforts supplémentaires sont nécessaires pour optimiser les connaissances, les recommandations et les pratiques dans ce domaine / Facing to increasing survival of very preterm neonates, reducing sequelae in this population became a major public issue. Nutritional support of preterm neonates has a durable impact on their future. However, it often fails to prevent the protein-energetic imbalance, nutritional deficiencies, and post-natal growth restriction, which act as aggravating factors. Our researches evaluated different axes of current nutritional strategies, limitations and possible improvements: I) parenteral, II) enteral, III) prevention of complications, IV) growth assessment. Most relevant findings of these clinical studies were: I) Significant variations of parenteral intakes in the centres, as well as inadequate use of lipids, involved in early energetic-protein deficit. Impact of lipids on growth, brain development, and even the incidence of complications were suggested. II) Advantages in using fresh raw mother's own milk in the early days to enhance breastfeeding in hospitalized neonates, as well as important changes in mother's milk composition. An increase in breastfeeding rates over the periods of studies showed a beneficial effect of the research, although "observational", on breastfeeding. III) An increased risk of hyperglycemia in case of low phosphatemia. IV) A moderate impact of being small for gestational age on neuro-development in a preterm cohort, and related auxologic limitations. This work allowed to recognize some barriers of the nutritional support, and to consider different improvement strategies. It emphasizes the close and important links between nutrition, growth and neurological development of vulnerable infants. Further efforts are needed to optimize knowledge, recommendations and practices in this area