RESUMO
BACKGROUND: An institutional management protocol for patients with subarachnoid hemorrhage (SAH) based on initial cardiac assessment, permissiveness of negative fluid balances, and use of a continuous albumin infusion as the main fluid therapy for the first 5 days of the intensive care unit (ICU) stay was implemented at our hospital in 2014. It aimed at achieving and maintaining euvolemia and hemodynamic stability to prevent ischemic events and complications in the ICU by reducing periods of hypovolemia or hemodynamic instability. This study aimed at assessing the effect of the implemented management protocol on the incidence of delayed cerebral ischemia (DCI), mortality, and other relevant outcomes in patients with SAH during ICU stay. METHODS: We conducted a quasi-experimental study with historical controls based on electronic medical records of adults with SAH admitted to the ICU at a tertiary care university hospital in Cali, Colombia. The patients treated between 2011 and 2014 were the control group, and those treated between 2014 and 2018 were the intervention group. We collected baseline clinical characteristics, cointerventions, occurrence of DCI, vital status after 6 months, neurological status after 6 months, hydroelectrolytic imbalances, and other SAH complication. Multivariable and sensitivity analyses that controlled for confounding and considered the presence of competing risks were used to adequately estimate the effects of the management protocol. The study was approved by our institutional ethics review board before study start. RESULTS: One hundred eighty-nine patients were included for analysis. The management protocol was associated with a reduced incidence of DCI (hazard ratio 0.52 [95% confidence interval 0.33-0.83] from multivariable subdistribution hazards model) and hyponatremia (relative risk 0.55 [95% confidence interval 0.37-0.80]). The management protocol was not associated with higher hospital or long-term mortality, nor with a higher occurrence of other unfavorable outcomes (pulmonary edema, rebleeding, hydrocephalus, hypernatremia, pneumonia). The intervention group also had lower daily and cumulative administered fluids compared with historic controls (p < 0.0001). CONCLUSIONS: A management protocol based on hemodynamically oriented fluid therapy in combination with a continuous albumin infusion as the main fluid during the first 5 days of the ICU stay appears beneficial for patients with SAH because it was associated with reduced incidence of DCI and hyponatremia. Proposed mechanisms include improved hemodynamic stability that allows euvolemia and reduces the risk of ischemia, among others.
Assuntos
Isquemia Encefálica , Hiponatremia , Hemorragia Subaracnóidea , Adulto , Humanos , Hemorragia Subaracnóidea/complicações , Hemorragia Subaracnóidea/terapia , Hiponatremia/etiologia , Hiponatremia/prevenção & controle , Infarto Cerebral/complicações , Isquemia Encefálica/etiologia , Protocolos ClínicosRESUMO
Los cuadros de deshidratación son frecuentes en pediatría, muchos de ellos acompañados de alteraciones electrolíticas. La deshidratación asociada a trastornos del sodio puede implicar riesgos para la salud de los pacientes pediátricos tanto en el desarrollo del cuadro como en su tratamiento. Objetivo: crear un algoritmo de manejo de los cuadros de deshidratación asociados a lateraciones del sodio para manejo de pacientes pediátricos. Métodos: se realizó revisión de la literatura disponible sobre deshidratación con hiper e hiponatremia, en inglés y español, incluyendo libros y artículos de revistas. Se presenta en el actual documento los aspectos básicos sobre la fisiopatología de la deshidratación asociada a trastornos del sodio, su clínica, diagnóstico y manejo detallado, para el uso en la práctica clínica diaria.
Dehydration is common in pediatric patients, frequently accompanied with electrolite disturbances. Dehydration associated with sodium disturbances can involve risk for pediatric patient health during the development of the disease and during its treatment. Objective: to create an algorithm of management of dehydration with sodium disturbances in pediatric patients. Methods: review of literature about dehydration with hypernatremia and hyponatremia, in english and spanish, including books and published articles. We present in this document the basic aspects of physiopathology of dehydration with sodium disturbances, clinical presentation, diagnosis and detailed management, so it can be consulted for clinical practice.
Assuntos
Humanos , Masculino , Feminino , Recém-Nascido , Lactente , Pré-Escolar , Criança , Desidratação/diagnóstico , Desidratação/etiologia , Desidratação/terapia , Hiponatremia/fisiopatologia , Diarreia , Hipernatremia/diagnóstico , Hipernatremia/prevenção & controle , Hiponatremia/diagnóstico , Hiponatremia/prevenção & controleRESUMO
ABSTRACT OBJECTIVE: To compare two electrolyte maintenance solutions in the postoperative period in children undergoing appendectomy, in relation to the occurrence of hyponatremia and water retention. METHODS: A randomized clinical study involving 50 pediatric patients undergoing appendectomy, who were randomized to receive 2,000 mL/m2/day of isotonic (Na 150 mEq/L or 0.9% NaCl) or hypotonic (Na 30 mEq/L NaCl or 0.18%) solution. Electrolytes, glucose, urea, and creatinine were measured at baseline, 24 h, and 48 h after surgery. Volume infused, diuresis, weight, and water balance were analyzed. RESULTS: Twenty-four patients had initial hyponatremia; in this group, 13 received hypotonic solution. Seventeen patients remained hyponatremic 48 h after surgery, of whom ten had received hypotonic solution. In both groups, sodium levels increased at 24 h (137.4 ± 2.2 and 137.0 ± 2.7 mmol/L), with no significant difference between them (p = 0.593). Sodium levels 48 h after surgery were 136.6 ± 2.7 and 136.2 ± 2.3 mmol/L in isotonic and hypotonic groups, respectively, with no significant difference. The infused volume and urine output did not differ between groups during the study. The water balance was higher in the period before surgery in patients who received hypotonic solution (p = 0.021). CONCLUSIONS: In the post-appendectomy period, the use of hypotonic solution (30 mEq/L, 0.18%) did not increase the risk of hyponatremia when compared to isotonic saline. The use of isotonic solution (150 mEq/L, 0.9%) did not favor hypernatremia in these patients. Children who received hypotonic solution showed higher cumulative fluid balance in the preoperative period.
RESUMO OBJETIVO: Comparar duas soluções de manutenção hidroeletrolítica no período pós-operatório (PO) de crianças submetidas à apendicectomia quanto à ocorrência de hiponatremia e retenção hídrica. MÉTODOS: Estudo clínico randomizado que envolveu 50 pacientes pediátricos submetidos à apendicectomia, randomizados para receber 2.000 ml/m2/dia de solução isotônica (Na 150 mEq/L ou NaCl 0,9%) ou hipotônica (Na 30mEq/L ou NaCl 0,18%). Eletrólitos, glicose, ureia e creatinina foram mensurados no início do estudo, 24 e 48 horas após a cirurgia. Foram analisados volume infundido, diurese, peso e balanço hídrico. RESULTADOS: Apresentaram hiponatremia inicial 24 pacientes. Desses, 13 receberam solução hipotônica. Dezessete pacientes permaneceram hiponatrêmicas 48 horas após a cirurgia, 10 haviam recebido solução hipotônica. Nos dois grupos os níveis de sódio aumentaram na 24ª hora PO (137,4 ± 2,2 e 137,0 ± 2,7) e não houve diferença entre eles (p = 0,593). Níveis de sódio 48 h após a cirurgia foram 136,6 ± 2,7 e 136,2 ± 2,3 no grupo isotônico e hipotônico respectivamente sem diferença significativa. Os volumes infundidos e a diurese não diferiram entre os grupos durante o estudo. O balanço hídrico foi maior no período anterior à cirurgia no grupo de pacientes que receberam solução hipotônica (p = 0,021). CONCLUSÕES: No período pós-apendicectomia, o uso da solução hipotônica não aumentou o risco de hiponatremia quando comparado com uma solução salina isotônica. O uso da solução isotônica não favoreceu a hipernatremia nesses pacientes. Crianças que receberam solução hipotônica apresentaram maior balanço hídrico cumulativo no período pré-operatório.
Assuntos
Adolescente , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Apendicectomia , Hidratação/métodos , Hiponatremia/prevenção & controle , Complicações Pós-Operatórias/prevenção & controle , Apendicectomia/efeitos adversos , Método Duplo-Cego , Diurese/efeitos dos fármacos , Glucose/administração & dosagem , Hiponatremia/sangue , Soluções Hipotônicas/administração & dosagem , Infusões Intravenosas , Soluções Isotônicas/administração & dosagem , Período Pós-Operatório , Período Pré-Operatório , Estudos Prospectivos , Cloreto de Potássio/administração & dosagem , Cloreto de Sódio/administração & dosagem , Sódio/sangueRESUMO
OBJECTIVE: To compare two electrolyte maintenance solutions in the postoperative period in children undergoing appendectomy, in relation to the occurrence of hyponatremia and water retention. METHODS: A randomized clinical study involving 50 pediatric patients undergoing appendectomy, who were randomized to receive 2,000mL/m(2)/day of isotonic (Na 150 mEq/L or 0.9% NaCl) or hypotonic (Na 30 mEq/L NaCl or 0.18%) solution. Electrolytes, glucose, urea, and creatinine were measured at baseline, 24h, and 48h after surgery. Volume infused, diuresis, weight, and water balance were analyzed. RESULTS: Twenty-four patients had initial hyponatremia; in this group, 13 received hypotonic solution. Seventeen patients remained hyponatremic 48h after surgery, of whom ten had received hypotonic solution. In both groups, sodium levels increased at 24h (137.4±2.2 and 137.0±2.7mmol/L), with no significant difference between them (p=0.593). Sodium levels 48h after surgery were 136.6±2.7 and 136.2±2.3mmol/L in isotonic and hypotonic groups, respectively, with no significant difference. The infused volume and urine output did not differ between groups during the study. The water balance was higher in the period before surgery in patients who received hypotonic solution (p=0.021). CONCLUSIONS: In the post-appendectomy period, the use of hypotonic solution (30 mEq/L, 0.18%) did not increase the risk of hyponatremia when compared to isotonic saline. The use of isotonic solution (150 mEq/L, 0.9%) did not favor hypernatremia in these patients. Children who received hypotonic solution showed higher cumulative fluid balance in the preoperative period.
Assuntos
Apendicectomia , Hidratação/métodos , Hiponatremia/prevenção & controle , Complicações Pós-Operatórias/prevenção & controle , Adolescente , Apendicectomia/efeitos adversos , Criança , Pré-Escolar , Diurese/efeitos dos fármacos , Método Duplo-Cego , Feminino , Glucose/administração & dosagem , Humanos , Hiponatremia/sangue , Soluções Hipotônicas/administração & dosagem , Lactente , Infusões Intravenosas , Soluções Isotônicas/administração & dosagem , Masculino , Período Pós-Operatório , Cloreto de Potássio/administração & dosagem , Período Pré-Operatório , Estudos Prospectivos , Sódio/sangue , Cloreto de Sódio/administração & dosagemRESUMO
PURPOSE: This work examines whether sodium supplementation is important in prevention of hyponatremia during continuous exercise up to 30 h and whether any distinguishing characteristics of those developing hyponatremia could be identified. METHODS: Participants of the 161-km Western States Endurance Run underwent body weight measurements before, during, and after the race, completed a postrace questionnaire about drinking strategies and use of sodium supplementation during four race segments, and underwent analysis of postrace serum sodium concentration. RESULTS: The postrace questionnaire was completed by 74.5% of the 376 starters, a postrace blood sample was provided by 61.1% of the 296 finishers, and 53.0% of finishers completed the postrace survey and also provided a postrace blood sample. Among this population, the incidence of hyponatremia among finishers was 6.6% and sodium supplements were used by 93.9% of the runners. Postrace serum sodium concentration was found to be directly related to the rate of sodium intake in supplements (r = 0.24, P = 0.0027) and indirectly related to the percentage change in body weight from immediately before the race start (r = -0.19, P = 0.010). There was no difference in rate of sodium intake in supplements between the hyponatremic and normonatremic finishers, and none of the hyponatremic finishers lost >4.3% body weight. Hyponatremic finishers were not distinguished from normonatremic or hypernatremic finishers by other runner characteristics considered, drinking strategies, or gastrointestinal symptoms of nausea and vomiting. CONCLUSIONS: We conclude that a low sodium intake in supplements has minimal responsibility for development of hyponatremia during continuous exercise up to 30 h, whereas overhydration is the primary characteristic of those developing hyponatremia. Therefore, avoiding overhydration seems to be the most important means for preventing hyponatremia under these conditions.
Assuntos
Suplementos Nutricionais , Hiponatremia/etiologia , Hiponatremia/prevenção & controle , Resistência Física/fisiologia , Corrida/fisiologia , Sódio/administração & dosagem , Adulto , Ingestão de Líquidos , Humanos , Masculino , Pessoa de Meia-Idade , Sódio/sangue , Inquéritos e Questionários , Redução de PesoRESUMO
OBJECTIVE: To determine whether the administration of isotonic saline in patients undergoing spinal fusion surgery prevents the development of hyponatremia, thus masking the detection of syndrome of inappropriate antidiuretic hormone secretion (SIADH). STUDY DESIGN: Prospective observational cohort study conducted in pediatric patients undergoing spinal fusion surgery. Using established criteria for diagnosing SIADH with the exception of serum sodium as a criterion, we separated patients into those with and without masked SIADH. Random cortisol levels were measured in the perioperative period to test for adrenal insufficiency to exclude it as a cause for natriuresis and hyponatremia. RESULTS: Of the 40 patients included in the study, 13 (32%; 95% CI, 19%-49%) met study criteria for masked SIADH. The serum sodium levels between the 2 groups were not different throughout the postoperative period. The antidiuretic hormone levels were increased at 24-48 hours after surgery (20.4 pg/mL in masked SIADH group vs 6.6 pg/mL in no masked SIADH group, P = .04). Subjects with masked SIADH demonstrated a tendency for weight gain (3.9 kg vs 2.5 kg, P = .058), which was maximal on postoperative day 2. Cortisol levels were similar between the groups. CONCLUSION: Masked SIADH (SIADH-like state without hyponatremia) commonly occurs in the postoperative period in children and young adults undergoing spinal fusion surgery. Early postoperative evaluation and recognition may result in appropriate management of patient's fluid balance.
Assuntos
Hiponatremia/prevenção & controle , Síndrome de Secreção Inadequada de HAD/diagnóstico , Síndrome de Secreção Inadequada de HAD/terapia , Cloreto de Sódio/química , Adolescente , Criança , Feminino , Hemoglobinas/biossíntese , Humanos , Hidrocortisona/sangue , Modelos Lineares , Masculino , Período Perioperatório , Estudos Prospectivos , Fusão Vertebral/métodos , Fatores de Tempo , Adulto JovemRESUMO
AIM: To investigate the influence of hypotonic parenteral hydration on serum and urinary sodium and osmolality in infants with moderate bronchiolitis. METHODS: We studied 36 infants (mean age 3.7 ± 2.3 months), with a diagnosis of moderate bronchiolitis admitted to a paediatric emergency unit in São Paulo, Brazil. Patients received a standard parenteral hypotonic solution, according to Holliday and Segar, during the first 24 h, due to respiratory distress. The disease was monitored by a respiratory severity score (RDAI-Respiratory Distress Assessment Instrument), respiratory rate and oxygen saturation. Serum and urinary sodium and osmolality were monitored at admission, 24 and 48 h after admission. RESULTS: All respiratory parameters improved during hospitalisation. Serum sodium and osmolality dropped after 24 h (136.8 ± 2.8 and 135.8 ± 2.6 mEq/L, p = 0.031; 283.4 ± 4.1 and 281.6 ± 3.9 mOsm/kg, p = 0.004 respectively) as well as urinary osmolality (486.8 ± 243.4 mOsm/kg and 355.7 ± 205.0 mOsm/kg, p < 0.001) when compared to admission. CONCLUSION: This study reinforces the occurrence of hyponatraemia in bronchiolitis even in patients with moderate disease and highlights the risk of serum sodium drop caused by hypotonic parenteral hydration.
Assuntos
Bronquiolite/complicações , Hiponatremia/prevenção & controle , Soluções Hipotônicas/uso terapêutico , Brasil/epidemiologia , Bronquiolite/sangue , Bronquiolite/urina , Estudos de Coortes , Progressão da Doença , Serviços Médicos de Emergência , Feminino , Humanos , Hiponatremia/epidemiologia , Hiponatremia/etiologia , Incidência , Recém-Nascido , Infusões Intravenosas , Masculino , Estudos ProspectivosRESUMO
OBJECTIVES: Newborns who undergo surgery for gastroschisis correction may present with oliguria, anasarca, prolonged postoperative ileus, and infection. New postoperative therapeutic procedures were tested with the objective of improving postoperative outcome. PATIENTS AND METHODS: One hundred thirty-six newborns participated in one of two phases. Newborns in the first phase received infusions of large volumes of crystalloid solution and integral enteral formula, and newborns in the second phase received crystalloid solutions in smaller volumes, with albumin solution infusion when necessary and the late introduction of a semi-elemental diet. The studied variables were serum sodium and albumin levels, the need for albumin solution expansion, the occurrence of anasarca, the length of time on parenteral nutrition, the length of time before initiating an enteral diet and reaching a full enteral diet, orotracheal intubation time, length of hospitalization, and survival rates. RESULTS: Serum sodium levels were higher in newborns in the second phase. There was a correlation between low serum sodium levels and orotracheal intubation time; additionally, low serum albumin levels correlated with the length of time before the initiation of an oral diet and the time until a full enteral diet was reached. However, the discharge weights of newborns in the second phase were higher than in the first phase. The other studied variables, including survival rates (83.4% and 92.0%, respectively), were similar for both phases. CONCLUSIONS: The administration of an albumin solution to newborns in the early postoperative period following gastroschisis repair increased their low serum sodium levels but did not improve the final outcome. The introduction of a semi-elemental diet promoted an increase in body weight at the time of discharge.
Assuntos
Albuminas/administração & dosagem , Nutrição Enteral/métodos , Gastrosquise/terapia , Tempo de Internação/estatística & dados numéricos , Cuidados Pós-Operatórios/efeitos adversos , Albumina Sérica/análise , Sódio/sangue , Albuminas/efeitos adversos , Soluções Cristaloides , Edema/epidemiologia , Nutrição Enteral/efeitos adversos , Métodos Epidemiológicos , Gastrosquise/sangue , Gastrosquise/cirurgia , Humanos , Hiponatremia/prevenção & controle , Recém-Nascido , Soluções Isotônicas/administração & dosagem , Cuidados Pós-Operatórios/métodos , Complicações Pós-Operatórias/mortalidade , Complicações Pós-Operatórias/prevenção & controle , Fatores de Tempo , Resultado do TratamentoRESUMO
OBJECTIVES: Newborns who undergo surgery for gastroschisis correction may present with oliguria, anasarca, prolonged postoperative ileus, and infection. New postoperative therapeutic procedures were tested with the objective of improving postoperative outcome. PATIENTS AND METHODS: One hundred thirty-six newborns participated in one of two phases. Newborns in the first phase received infusions of large volumes of crystalloid solution and integral enteral formula, and newborns in the second phase received crystalloid solutions in smaller volumes, with albumin solution infusion when necessary and the late introduction of a semi-elemental diet. The studied variables were serum sodium and albumin levels, the need for albumin solution expansion, the occurrence of anasarca, the length of time on parenteral nutrition, the length of time before initiating an enteral diet and reaching a full enteral diet, orotracheal intubation time, length of hospitalization, and survival rates. RESULTS: Serum sodium levels were higher in newborns in the second phase. There was a correlation between low serum sodium levels and orotracheal intubation time; additionally, low serum albumin levels correlated with the length of time before the initiation of an oral diet and the time until a full enteral diet was reached. However, the discharge weights of newborns in the second phase were higher than in the first phase. The other studied variables, including survival rates (83.4 percent and 92.0 percent, respectively), were similar for both phases. CONCLUSIONS: The administration of an albumin solution to newborns in the early postoperative period following gastroschisis repair increased their low serum sodium levels but did not improve the final outcome. The introduction of a semi-elemental diet promoted an increase in body weight at the time of discharge.
Assuntos
Humanos , Recém-Nascido , Albuminas/administração & dosagem , Nutrição Enteral/métodos , Gastrosquise/terapia , Tempo de Internação/estatística & dados numéricos , Cuidados Pós-Operatórios/efeitos adversos , Albumina Sérica/análise , Sódio/sangue , Albuminas/efeitos adversos , Métodos Epidemiológicos , Edema/epidemiologia , Nutrição Enteral/efeitos adversos , Gastrosquise/sangue , Gastrosquise/cirurgia , Hiponatremia/prevenção & controle , Soluções Isotônicas/administração & dosagem , Cuidados Pós-Operatórios/métodos , Complicações Pós-Operatórias/mortalidade , Complicações Pós-Operatórias/prevenção & controle , Fatores de Tempo , Resultado do TratamentoRESUMO
OBJECTIVES: This review aims to evaluate if the use of hypotonic saline solutions as maintenance intravenous fluid therapy in hospitalized children increases the risk of hyponatremia, if the administration of isotonic fluids is able to protect against acquired hyponatremia and if the isotonic solutions increase the risks of deleterious effects such as hypernatremia or fluid overload. SOURCES: We researched the relevant literature on the PubMed (Jan 01 1969 to Jul 13 2011), EMBASE (1989 to 2011) and Cochrane Library (1989 to 2011) databases. Furthermore, references of selected studies were included. SUMMARY OF THE FINDINGS: Hospitalized children are potentially at risk of developing hyponatremia and the use of hypotonic saline solutions is the main risk factor for this disease. Isotonic saline solutions have shown a protective effect against hyponatremia, and, so far, there have been no significant deleterious effects such as fluid overload, hypernatremia or phlebitis. CONCLUSIONS: The evidence found indicates that the traditional recommendation of Holliday and Segar to use maintenance fluid therapy for sick and hospitalized children deserves to be reconsidered due to the adverse effects found to arise from it, apart from the better results obtained by using isotonic solutions.
Assuntos
Criança Hospitalizada , Hidratação/efeitos adversos , Hiponatremia/prevenção & controle , Soluções Hipotônicas/efeitos adversos , Soluções Isotônicas/administração & dosagem , Criança , Hidratação/métodos , Humanos , Hiponatremia/etiologia , Fatores de RiscoRESUMO
OBJETIVOS: Avaliar se o uso de soluções salinas hipotônicas como fluidoterapia de manutenção em crianças hospitalizadas aumenta o risco de hiponatremia, se a administração de fluidos isotônicos é capaz de proteger contra a hiponatremia adquirida e se as soluções isotônicas aumentam os riscos de efeitos deletérios como hipernatremia ou sobrecarga hídrica. FONTES DOS DADOS: Realizou-se uma pesquisa bibliográfica nas bases de dados PubMed (01/01/1969 a 13/07/2011), Embase (1989 a 2011) e Cochrane Library (1989 a 2011). Adicionalmente, referências foram incluídas dos estudos selecionados. SÍNTESE DOS DADOS: Crianças hospitalizadas têm riscos potenciais para hiponatremia, e o uso de soluções salinas hipotônicas é o principal fator de risco para esse agravo. As soluções salinas isotônicas têm mostrado efeito protetor para hiponatremia e, até o momento, sem efeitos deletérios significativos, como sobrecarga hídrica, hipernatremia ou flebites. CONCLUSÕES: As evidências indicam que a tradicional recomendação de Holliday & Segar quanto à fluidoterapia de manutenção para crianças doentes e hospitalizadas merece ser reconsiderada em virtude das evidências sobre os efeitos adversos dela advindos, assim como dos melhores resultados obtidos com o emprego das soluções isotônicas.
OBJECTIVES: This review aims to evaluate if the use of hypotonic saline solutions as maintenance intravenous fluid therapy in hospitalized children increases the risk of hyponatremia, if the administration of isotonic fluids is able to protect against acquired hyponatremia and if the isotonic solutions increase the risks of deleterious effects such as hypernatremia or fluid overload. SOURCES: We researched the relevant literature on the PubMed (Jan 01 1969 to Jul 13 2011), EMBASE (1989 to 2011) and Cochrane Library (1989 to 2011) databases. Furthermore, references of selected studies were included. SUMMARY OF THE FINDINGS: Hospitalized children are potentially at risk of developing hyponatremia and the use of hypotonic saline solutions is the main risk factor for this disease. Isotonic saline solutions have shown a protective effect against hyponatremia, and, so far, there have been no significant deleterious effects such as fluid overload, hypernatremia or phlebitis. CONCLUSIONS: The evidence found indicates that the traditional recommendation of Holliday and Segar to use maintenance fluid therapy for sick and hospitalized children deserves to be reconsidered due to the adverse effects found to arise from it, apart from the better results obtained by using isotonic solutions.
Assuntos
Criança , Humanos , Criança Hospitalizada , Hidratação/efeitos adversos , Hiponatremia/prevenção & controle , Soluções Hipotônicas/efeitos adversos , Soluções Isotônicas/administração & dosagem , Hidratação/métodos , Hiponatremia/etiologia , Fatores de RiscoRESUMO
UNLABELLED: OBJECTIVES AND INTRODUCTION: Gastroschisis is a congenital abdominal wall defect with increasing occurrence worldwide over the past 20-30 years. Our aim was to analyze the morbidity of newborns after gastroschisis closure, with emphasis on metabolic and hydroelectrolyte disturbances in patients at three tertiary university centers. METHODS: From January 2003 to June 2009, the following patient data were collected retrospectively: (A) Background maternal and neonatal data: maternal age, prenatal diagnosis, type of delivery, Apgar scores, birth weight, gestational age and sex; (B) Surgical modalities: primary or staged closure; and (C) Hospital course: levels of serum sodium and levels of serum albumin in the two first postoperative days, number of ventilation days, other postoperative variables and survival. Statistical analyses were used to examine the associations between some variables. RESULTS: 163 newborns were included in the study. Primary closure of the abdominal defect was performed in 111 cases (68.1%). The mean serum sodium level was 127.4 ± 6.7 mEq/L, and the mean serum albumin level was 2.35 ± 0.5 g/dL. Among the correlations between variables, it was verified that hyponatremia and hypoalbuminemia correlated with the number of days on the ventilator but not with the number of days on total parenteral nutrition (TPN); mortality rate correlated with infection. The final survival rate was 85.9%. CONCLUSION: In newborns with gastroschisis, more aggressive attention to hyponatremia and hypoalbuminemia would improve the outcome.
Assuntos
Gastrosquise/cirurgia , Albuminas/análise , Brasil/epidemiologia , Estado Terminal , Feminino , Gastrosquise/epidemiologia , Humanos , Hipoalbuminemia/prevenção & controle , Hiponatremia/prevenção & controle , Recém-Nascido , Modelos Lineares , Masculino , Complicações Pós-Operatórias/prevenção & controle , Estudos Retrospectivos , Sódio/análise , Estatísticas não Paramétricas , Taxa de Sobrevida , Fatores de Tempo , Resultado do TratamentoRESUMO
OBJECTIVES AND INTRODUCTION: Gastroschisis is a congenital abdominal wall defect with increasing occurrence worldwide over the past 20-30 years. Our aim was to analyze the morbidity of newborns after gastroschisis closure, with emphasis on metabolic and hydroelectrolyte disturbances in patients at three tertiary university centers. METHODS: From January 2003 to June 2009, the following patient data were collected retrospectively: (A) Background maternal and neonatal data: maternal age, prenatal diagnosis, type of delivery, Apgar scores, birth weight, gestational age and sex; (B) Surgical modalities: primary or staged closure; and (C) Hospital course: levels of serum sodium and levels of serum albumin in the two first postoperative days, number of ventilation days, other postoperative variables and survival. Statistical analyses were used to examine the associations between some variables. RESULTS: 163 newborns were included in the study. Primary closure of the abdominal defect was performed in 111 cases (68.1 percent). The mean serum sodium level was 127.4¡6.7 mEq/L, and the mean serum albumin level was 2.35¡0.5 g/dL. Among the correlations between variables, it was verified that hyponatremia and hypoalbuminemia correlated with the number of days on the ventilator but not with the number of days on total parenteral nutrition (TPN); mortality rate correlated with infection. The final survival rate was 85.9 percent. CONCLUSION: In newborns with gastroschisis, more aggressive attention to hyponatremia and hypoalbuminemia would improve the outcome.
Assuntos
Feminino , Humanos , Recém-Nascido , Masculino , Gastrosquise/cirurgia , Albuminas/análise , Brasil/epidemiologia , Estado Terminal , Gastrosquise/epidemiologia , Hipoalbuminemia/prevenção & controle , Hiponatremia/prevenção & controle , Modelos Lineares , Complicações Pós-Operatórias/prevenção & controle , Estudos Retrospectivos , Estatísticas não Paramétricas , Taxa de Sobrevida , Sódio/análise , Fatores de Tempo , Resultado do TratamentoRESUMO
OBJECTIVES: To determine the importance of sodium content versus administration rate of intravenous fluids in the development of hyponatremia in postoperative children. STUDY DESIGN: In this prospective, randomized, nonblinded study, 124 children admitted for surgery received 0.9% (NS) or 0.45% (N/2) saline solution at 100% or 50% maintenance rates. Plasma electrolytes, osmolality, and ADH at induction of anesthesia were compared with values 8 hours (T(8)), and 24 hours (T(24); n = 67) after surgery. Blood glucose and ketones were measured every 4 hours. Electrolytes and osmolality were measured in urine samples. RESULTS: Plasma sodium concentrations fell in both N/2 groups at T(8) (100%: -1.5 +/- 2.3 mmol/L 50%: -1.9 +/- 2.0 mmol/L; P < .01) with hyponatremia more common than in the NS groups at T(8) (30% vs 10%; P = .02) but not T(24). Median plasma antidiuretic hormone concentrations increased 2- to 4-fold during surgery (P < or = .001) and only reattained levels at induction of anesthesia by T(24) in the N/2 100% group. On multiple linear regression analysis, fluid type, not rate determined risk of hyponatremia (P < .04). Two children on 100% developed SIADH (1NS). Fourteen (23%; 7NS) on 50% maintenance were assessed as dehydrated. Dextrose content was increased in 18 for hypoglycemia or ketosis. CONCLUSIONS: The risk of hyponatremia was decreased by isotonic saline solution but not fluid restriction.
Assuntos
Hidratação/métodos , Hiponatremia/prevenção & controle , Adolescente , Criança , Pré-Escolar , Feminino , Hidratação/efeitos adversos , Humanos , Lactente , Infusões Intravenosas , Soluções Isotônicas , Modelos Lineares , Masculino , Análise Multivariada , Concentração Osmolar , Cuidados Pós-Operatórios , Estudos Prospectivos , Cloreto de Sódio/administração & dosagem , Cloreto de Sódio/sangue , Vasopressinas/sangue , Equilíbrio HidroeletrolíticoRESUMO
OBJECTIVES: The purpose of this review is to describe the evolution of hydration research and advice on drinking during exercise from published scientific papers, books and non-scientific material (advertisements and magazine contents) and detail how erroneous advice is likely propagated throughout the global sports medicine community. DESIGN: Hydration advice from sports-linked entities, the scientific community, exercise physiology textbooks and non-scientific sources was analysed historically and compared with the most recent scientific evidence. CONCLUSIONS: Drinking policies during exercise have changed substantially throughout history. Since the mid-1990s, however, there has been an increase in the promotion of overdrinking by athletes. While the scientific community is slowly moving away from "blanket" hydration advice in which one form of advice fits all and towards more modest, individualised, hydration guidelines in which thirst is recognised as the best physiological indicator of each subject's fluid needs during exercise, marketing departments of the global sports drink industry continue to promote overdrinking.