Frequency and Severity of Chlorothiazide-Induced Hyponatremia in the Neonatal Intensive Care Unit

Objective Although thiazide diuretics are commonly used in the neonatal intensive care unit (NICU), the risk of thiazide-induced hyponatremia in infants has not been well documented. The primary objective of this study was to determine the frequency and severity of hyponatremia in neonates and infants receiving enteral chlorothiazide. Secondary objectives included identifying: (1) percent change in serum sodium from before chlorothiazide initiation to nadir, (2) time to reach nadir serum sodium concentration, and (3) percentage of patients on chlorothiazide receiving sodium supplementation. Study Design This was a retrospective cohort study of NICU patients admitted between July 1, 2014 and July 31, 2019 who received ≥1 dose of enteral chlorothiazide. Mild, moderate, and severe hyponatremia were defined as serum sodium of 130 to 134 mEq/L, 120 to 129 mEq/L, and less than 120 mEq/L, respectively. Data including serum electrolytes, chlorothiazide dosing, and sodium supplementation were collected for the first 2 weeks of therapy. Descriptive and inferential statistics were performed in SAS software, Version 9.4. Results One hundred and seven patients, receiving 127 chlorothiazide courses, were included. The median gestational age at birth and postmenstrual age at initiation were 26.0 and 35.9 weeks, respectively. The overall frequency of hyponatremia was 35.4% (45/127 courses). Mild, moderate, and severe hyponatremia were reported in 27 (21.3%), 16 (12.6%), and 2 (1.6%) courses. The median percent decrease in serum sodium from baseline to nadir was 2.9%, and the median time to nadir sodium was 5 days. Enteral sodium supplements were administered in 52 (40.9%) courses. Sixteen courses (12.6%) were discontinued within the first 14 days of therapy due to hyponatremia. Conclusion Hyponatremia occurred in over 35% of courses of enteral chlorothiazide in neonates and infants. Given the high frequency of hyponatremia, serum sodium should be monitored closely in infants receiving chlorothiazide. Providers should consider early initiation of sodium supplements if warranted. Key Points

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Evaluation of the Efficacy of Enoxaparin in the Neonatal Intensive Care Unit

American Journal of Perinatology ◽

10.1055/s-0039-1698456 ◽

2019 ◽

Author(s):

Diane Song ◽

Jacqueline Magers ◽

Mahmoud Abdel-Rasoul ◽

Pavel Prusakov

Keyword(s):

Intensive Care Unit ◽

Intensive Care ◽

Neonatal Intensive Care Unit ◽

Neonatal Intensive Care ◽

Cox Model ◽

Factor Xa ◽

Retrospective Chart Review ◽

P Value ◽

Bleeding Events ◽

Days Of Therapy

Abstract Objective This article evaluates the efficacy of enoxaparin when targeting anti-factor Xa levels of 0.5 to 1 units per milliliter in the neonatal intensive care unit. Study Design This is a retrospective chart review of 45 neonates receiving enoxaparin for the treatment of venous thromboembolism. Enoxaparin dosing and corresponding anti-factor Xa levels were collected. Time to resolution of clot was confirmed by imaging and compared between clots in various locations. Results The median time to clot resolution was 76 days (interquartile range 40–91 days). Clot location, postnatal age, and sex at the clot onset were significantly associated with time to clot resolution in a multivariable Cox model (p-value: 0.03, 0.03, and < 0.01, respectively). Of the 54 patients analyzed for safety, 5 patients (9.3%) experienced bleeding events resulting in the discontinuation of enoxaparin. Conclusion Based on our findings, 50% of all patients evaluated, regardless of thrombus location, achieved resolution within the first 76 days of therapy. Clots located in the extremities tended to resolve sooner, hence earlier reimaging should be considered.

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Oseltamivir Pharmacokinetics and Clinical Experience in Neonates and Infants during an Outbreak of H1N1 Influenza A Virus Infection in a Neonatal Intensive Care Unit

Antimicrobial Agents and Chemotherapy ◽

10.1128/aac.00290-12 ◽

2012 ◽

Vol 56 (7) ◽

pp. 3833-3840 ◽

Cited By ~ 17

Author(s):

Joseph F. Standing ◽

Angela Nika ◽

Vasileios Tsagris ◽

Ioannis Kapetanakis ◽

Helena C. Maltezou ◽

...

Keyword(s):

Intensive Care Unit ◽

Intensive Care ◽

Neonatal Intensive Care Unit ◽

Influenza A ◽

Neonatal Intensive Care ◽

Pharmacokinetic Model ◽

Population Pharmacokinetic ◽

Oseltamivir Carboxylate ◽

Influenza A H1n1 ◽

Neonates And Infants

ABSTRACTDetailed oseltamivir pharmacokinetics have yet to be reported in neonates and infants; this group is at high risk of serious influenza-associated complications. Extrapolation of doses from older patients is complicated by rapid organ and drug-metabolizing enzyme maturation. A pharmacokinetic study has been conducted during an influenza A(H1N1) outbreak in a neonatal intensive care unit. Each included patient provided 4 samples for oseltamivir and 4 samples for its active metabolite oseltamivir carboxylate. A population pharmacokinetic model was developed with NONMEM. Allometric weight scaling and maturation functions were addeda priorito scale for size and age based on literature values. Nine neonates and infants were recruited. A physiologically parameterized pharmacokinetic model predicted typical day 1 area under the curve (AUC0-12) values of 1,966 and 2,484 μg · h/liter for neonates and infants of ≤37 weeks of postmenstrual age (PMA) and >37 weeks of PMA treated with 1 mg/kg of body weight and 2 mg/kg, respectively. The corresponding steady-state AUC0-12values were 3,670 and 4,559 μg · h/liter. Premature neonates treated with 1 mg/kg and term babies treated with 2 mg/kg should have average oseltamivir carboxylate concentrations in a range similar to that for adults treated with 75 mg, corresponding to >200-fold above the half-maximal inhibitory concentration (IC50) value for influenza A(H1N1) from the start of therapy.

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The Psychosocial Aspects of Feeding in the Neonatal Intensive Care Unit and Beyond

Perspectives of the ASHA Special Interest Groups ◽

10.1044/2019_persp-19-00097 ◽

2019 ◽

Vol 4 (6) ◽

pp. 1507-1515

Author(s):

Lauren L. Madhoun ◽

Robert Dempster

Keyword(s):

Intensive Care Unit ◽

Intensive Care ◽

Neonatal Intensive Care Unit ◽

Hospital Discharge ◽

Neonatal Intensive Care ◽

Oral Feeding ◽

Medical Attention ◽

Primary Role ◽

Speech Language Pathologists ◽

The Family

Purpose Feeding challenges are common for infants in the neonatal intensive care unit (NICU). While sufficient oral feeding is typically a goal during NICU admission, this can be a long and complicated process for both the infant and the family. Many of the stressors related to feeding persist long after hospital discharge, which results in the parents taking the primary role of navigating the infant's course to ensure continued feeding success. This is in addition to dealing with the psychological impact of having a child requiring increased medical attention and the need to continue to fulfill the demands at home. In this clinical focus article, we examine 3 main areas that impact psychosocial stress among parents with infants in the NICU and following discharge: parenting, feeding, and supports. Implications for speech-language pathologists working with these infants and their families are discussed. A case example is also included to describe the treatment course of an infant and her parents in the NICU and after graduation to demonstrate these points further. Conclusion Speech-language pathologists working with infants in the NICU and following hospital discharge must realize the family context and psychosocial considerations that impact feeding progression. Understanding these factors may improve parental engagement to more effectively tailor treatment approaches to meet the needs of the child and family.

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