Publications by authors named "Peter N Johnson"

Objective: The purpose of this study was to characterize reported usage, dosage regimens, and monitoring practices of inhaled tobramycin in health systems with neonatal intensive care units (NICUs), pediatric intensive care units (PICUs), and cardiovascular intensive care units (CICUs) from the members of the Pediatric Pharmacy Association (PPA). The primary objective was to identify the number of respondents who use an inhaled tobramycin protocol. The secondary objectives included the main indications, dosage regimens, monitoring parameters used, and administration details for inhaled tobramycin.

View Article and Find Full Text PDF

In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time.

View Article and Find Full Text PDF

In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time.

View Article and Find Full Text PDF

Objectives: Erythromycin has been utilized for gastroparesis and feeding intolerance in adults and neonates, but limited studies exist for infants and children. The purpose of this study was to evaluate the safety and efficacy of erythromycin for gastroparesis in pediatric patients. The primary objective was to identify the number of patients with gastroparesis improvement, defined as no additional use of promotility agents, no erythromycin dose increases or need for other interventions (transpyloric or gastrostomy-jejunostomy tube).

View Article and Find Full Text PDF

Peer review is an essential step in the publication process and dissemination for scientific information to improve patient care and future research in pediatric patients. It is a professional obligation to ensure high quality, reliable, and relevant information is published. Despite this, many journals face problems finding peer reviewers.

View Article and Find Full Text PDF

To compare deprescribing rates of stress ulcer prophylaxis (SUP) between children receiving "usual-dose" (<4 mg/kg/day methylprednisolone equivalents) versus "high-dose" (≥4 mg/kg/day methylprednisolone equivalents) corticosteroids for status asthmaticus in the pediatric intensive care unit (PICU). This retrospective, cohort study included children <18 years of age receiving corticosteroids for status asthmaticus and SUP from 1/1/2017 to 6/31/2022. The primary objective was to compare the number of children that were deprescribed SUP following transition from the PICU to the floor and at hospital discharge between groups.

View Article and Find Full Text PDF

Objectives: Vasopressin is used for shock and acute pulmonary hypertension in the neonatal intensive care unit (NICU) and is associated with hyponatremia. The purpose of this study was to determine the incidence, severity, contributing risk factors associated with vasopressin-induced hyponatremia in neonates and infants <3 months of age in the NICU. The primary objective was to determine the incidence of hyponatremia (<130 mEq/L) and severe hyponatremia (<125 mEq/L).

View Article and Find Full Text PDF

Objective: A protocol was developed for neonatal intensive care unit (NICU) delirium: Step 1, gabapentin for pain or melatonin for sleep; Step 2, add on other Step 1 agent; Step 3, antipsychotics. The purpose of this study was to describe the utility and dosing of gabapentin for NICU delirium.

Methods: Retrospective evaluation of NICU patients from January 1, 2021-December 31, 2022 who received >1 dose of gabapentin based on the delirium protocol.

View Article and Find Full Text PDF
Article Synopsis
  • A study was conducted on ventilator-associated tracheitis or pneumonia in mechanically ventilated children using inhaled tobramycin at specific intervals to assess drug levels and kidney function.
  • The main goal was to find how many patients had tobramycin levels above 0.5 µg/mL, while secondary goals included comparing patient characteristics and tracking any instances of acute kidney injury (AKI).
  • Out of 44 patients studied, 68% had detectable drug levels and 20.5% experienced AKI, but no significant differences were found in demographics or medical details between those with and without detectable levels or AKI.
View Article and Find Full Text PDF

Midodrine is an oral vasopressor option that allows for discontinuation of intravenous vasopressors for patients with cardiovascular conditions. It does not have a US Food and Drug Administration-labeled indication for use in children, and there is a paucity of literature in patients ≤6 years of age. This case series describes 2 infants with complex congenital heart diseases initiated on midodrine for augmentation of systolic (SBP) or diastolic blood pressure (DBP) to increase coronary perfusion.

View Article and Find Full Text PDF

Objective: The objective of this study was to determine the incidence of hydrocortisone-associated gastrointestinal bleeding (GIB) in infants <3 months and compare rates with or without stress ulcer prophylaxis.

Study Design: Retrospective cohort study of NICU patients <3 months who received hydrocortisone for hypotension. Three logistic regressions were conducted for adjusted associations between GIB, necrotizing enterocolitis (NEC), or infection and clinical characteristics.

View Article and Find Full Text PDF

Sialorrhea, defined as an excess flow of saliva or excessive secretions, is common in patients with cerebral palsy and other neurologic disorders and is associated with clinical complications such as increased risk of local skin reactions, infections, aspiration, pneumonia, and dehydration. Upon failure of non-pharmacologic measures, clinicians have several noninvasive pharmacologic options available to manage sialorrhea. This review of the literature provides detailed descriptions of medications used, efficacy, safety, and practical considerations for use of non-injectable pharmacologic agents.

View Article and Find Full Text PDF

Objectives: The purpose of this study was to evaluate phytonadione in children with septic shock with disseminated intravascular coagulopathy (DIC). The primary objective was to identify the number of patients with an international normalized ratio (INR), defined as ≤1.2, following phytonadione.

View Article and Find Full Text PDF

Objectives: The purpose of this study was to describe overall screening, prevention, and treatments for pediatric delirium at various neonatal intensive care units (NICUs), cardiac intensive care units (CICUs), and pediatric intensive care units (PICUs) from the Pediatric Pharmacy Association (PPA) membership. The primary objective was to identify the number of respondents that had a defined delirium-based protocol. The secondary objectives included identification of delirium assessment tools used, first- and second-line delirium treatment options, and monitoring practices for antipsychotics for delirium management.

View Article and Find Full Text PDF

Objectives: Sleep deprivation is a risk factor for delirium development, which is a frequent complication of intensive care unit admission. Melatonin has been used for both delirium prevention and treatment. Melatonin safety, efficacy, and dosing information in neonates and infants is lacking.

View Article and Find Full Text PDF

Purpose: Opioid conversion calculators (OCCs) are used to convert between opioids. The purpose of this study was to describe the variability in OCC results in critically ill children transitioned from fentanyl to hydromorphone infusions.

Methods: This was a descriptive, retrospective study.

View Article and Find Full Text PDF

Analgesia and sedation are often critical elements of therapy for patients undergoing extracorporeal membrane oxygenation (ECMO). Aside from potential drug-drug interactions, the PK changes associated with ECMO make appropriate analgosedative selection challenging. Ketamine is less lipophilic and has lower protein binding than alternative agents, and may be less impacted by the PK changes during ECMO.

View Article and Find Full Text PDF

Purpose: To describe implementation of the University of Oklahoma College of Pharmacy (OUCOP) teaching and learning curriculum (TLC) for postgraduate year 1 (PGY1) and postgraduate year 2 (PGY2) residents, including the required components, evaluation structure, residency graduate outcomes and perceptions captured by a survey following program completion, generalizability to other institutions, and opportunities for future directions.

Summary: As part of their residency training, pharmacy residents are required to develop and refine teaching, precepting, and presentation skills. To meet the required and elective competency areas, goals, and objectives on teaching, precepting, and presentation skills, many American Society of Health-System Pharmacists-accredited residency programs have utilized TLC programs.

View Article and Find Full Text PDF

Azithromycin has been explored as a treatment option for eradication of and prevention of bronchopulmonary dysplasia (BPD) in preterm neonates. However, there is debate about the need for eradication of and whether azithromycin is safe and efficacious for this indication. This literature review provides an overview of the evidence for use of azithromycin for eradication of and prevention of BPD, including dosing and duration of azithromycin used in these studies.

View Article and Find Full Text PDF

Objective: Methadone is used to prevent opioid iatrogenic withdrawal syndrome (IWS) in children, but the optimal dose and overlap time with an opioid infusion have not been elucidated. The purpose was to compare clinical manifestations among patients who developed opioid IWS within 24 hours (early) versus ≥24 hours (late) of fentanyl discontinuation when enteral methadone was initiated.

Design: A retrospective, descriptive study.

View Article and Find Full Text PDF

Idiopathic (viral) pericarditis (IP) is one of the most common etiologies of acute and recurrent pericarditis in children. IP is associated with significant morbidity, and recurrence rates of IP are high and require treatment to decrease risk of recurrence and pericarditis-related chest pain. Despite significant morbidity, sparse guidance exists to comprehensively address management of IP in children.

View Article and Find Full Text PDF

Purpose: The University of Oklahoma College of Pharmacy (OUCOP) implemented an individualized residency research committee and skill development program to facilitate completion and publication of research projects. The purpose of this study was to evaluate the outcomes the program had on project publication rates and subsequent publications after graduation for postgraduate year 1 (PGY1) and postgraduate year 2 (PGY2) residents.

Methods: This study included OUCOP PGY1 and PGY2 residents from classes graduating from 2011 through 2019.

View Article and Find Full Text PDF

Objectives: There is a paucity of data on the use of intravenous magnesium sulfate infusion in children with refractory status asthmaticus. The purpose of this study was to evaluate the efficacy and safety of prolonged magnesium sulfate infusion as an advanced therapy.

Methods: This is a single center retrospective study of children admitted to our pediatric intensive care unit (PICU) with status asthmaticus requiring continuous albuterol.

View Article and Find Full Text PDF