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Zeilmaker-Roest G, de Vries-Rink C, van Rosmalen J, van Dijk M, de Wildt SN, Knibbe CAJ, Koomen E, Jansen NJG, Kneyber MCJ, Maebe S, Van den Berghe G, Haghedooren R, Vlasselaers D, Bogers AJJC, Tibboel D, Wildschut ED. Intermittent intravenous paracetamol versus continuous morphine in infants undergoing cardiothoracic surgery: a multi-center randomized controlled trial. Crit Care 2024; 28:143. [PMID: 38689310 PMCID: PMC11061924 DOI: 10.1186/s13054-024-04905-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 04/07/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND To determine whether intermittent intravenous (IV) paracetamol as primary analgesic would significantly reduce morphine consumption in children aged 0-3 years after cardiac surgery with cardiopulmonary bypass. METHODS Multi-center, randomized, double-blinded, controlled trial in four level-3 Pediatric Intensive Care Units (PICU) in the Netherlands and Belgium. Inclusion period; March 2016-July 2020. Children aged 0-3 years, undergoing cardiac surgery with cardiopulmonary bypass were eligible. Patients were randomized to continuous morphine or intermittent IV paracetamol as primary analgesic after a loading dose of 100 mcg/kg morphine was administered at the end of surgery. Rescue morphine was given if numeric rating scale (NRS) pain scores exceeded predetermined cutoff values. Primary outcome was median weight-adjusted cumulative morphine dose in mcg/kg in the first 48 h postoperative. For the comparison of the primary outcome between groups, the nonparametric Van Elteren test with stratification by center was used. For comparison of the proportion of patients with one or more NRS pain scores of 4 and higher between the two groups, a non-inferiority analysis was performed using a non-inferiority margin of 20%. RESULTS In total, 828 were screened and finally 208 patients were included; parents of 315 patients did not give consent and 305 were excluded for various reasons. Fourteen of the enrolled 208 children were withdrawn from the study before start of study medication leaving 194 patients for final analysis. One hundred and two patients received intermittent IV paracetamol, 106 received continuous morphine. The median weight-adjusted cumulative morphine consumption in the first 48 h postoperative in the IV paracetamol group was 5 times lower (79%) than that in the morphine group (median, 145.0 (IQR, 115.0-432.5) mcg/kg vs 692.6 (IQR, 532.7-856.1) mcg/kg; P < 0.001). The rescue morphine consumption was similar between the groups (p = 0.38). Non-inferiority of IV paracetamol administration in terms of NRS pain scores was proven; difference in proportion - 3.1% (95% CI - 16.6-10.3%). CONCLUSIONS In children aged 0-3 years undergoing cardiac surgery, use of intermittent IV paracetamol reduces the median weight-adjusted cumulative morphine consumption in the first 48 h after surgery by 79% with equal pain relief showing equipoise for IV paracetamol as primary analgesic. Trial Registration Clinicaltrials.gov, Identifier: NCT05853263; EudraCT Number: 2015-001835-20.
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MESH Headings
- Humans
- Morphine/therapeutic use
- Morphine/administration & dosage
- Acetaminophen/therapeutic use
- Acetaminophen/administration & dosage
- Male
- Female
- Infant
- Double-Blind Method
- Pain, Postoperative/drug therapy
- Analgesics, Opioid/administration & dosage
- Analgesics, Opioid/therapeutic use
- Belgium
- Netherlands
- Infant, Newborn
- Administration, Intravenous
- Cardiac Surgical Procedures/methods
- Child, Preschool
- Analgesics, Non-Narcotic/administration & dosage
- Analgesics, Non-Narcotic/therapeutic use
- Intensive Care Units, Pediatric/organization & administration
- Intensive Care Units, Pediatric/statistics & numerical data
- Pain Measurement/methods
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Affiliation(s)
- Gerdien Zeilmaker-Roest
- Department of Neonatal and Pediatric Intensive Care, Division of Pediatric Intensive Care, Erasmus MC-Sophia Children's Hospital, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands.
- Department of Cardiothoracic Surgery, Erasmus MC, Rotterdam, The Netherlands.
| | - Christine de Vries-Rink
- Department of Neonatal and Pediatric Intensive Care, Division of Pediatric Intensive Care, Erasmus MC-Sophia Children's Hospital, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
- Department of Cardiothoracic Surgery, Erasmus MC, Rotterdam, The Netherlands
| | - Joost van Rosmalen
- Department of Biostatistics, Erasmus MC, Rotterdam, The Netherlands
- Department of Epidemiology, Erasmus MC, Rotterdam, The Netherlands
| | - Monique van Dijk
- Department of Neonatal and Pediatric Intensive Care, Division of Pediatric Intensive Care, Erasmus MC-Sophia Children's Hospital, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
| | - Saskia N de Wildt
- Department of Neonatal and Pediatric Intensive Care, Division of Pediatric Intensive Care, Erasmus MC-Sophia Children's Hospital, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
- Department of Pharmacology and Toxicology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Catherijne A J Knibbe
- Division of Systems Pharmacology and Pharmacy, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
- Department of Clinical Pharmacy, St. Antonius Hospital Nieuwegein/Utrecht, Utrecht, The Netherlands
| | - Erik Koomen
- Department of Pediatrics, Division of Pediatric Critical Care Medicine, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Nicolaas J G Jansen
- Department of Pediatrics, Division of Pediatric Critical Care Medicine, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Pediatrics, Beatrix Children's Hospital, University Medical Center Groningen, Groningen, The Netherlands
| | - Martin C J Kneyber
- Department of Pediatrics, Division of Pediatric Critical Care Medicine, Beatrix Children's Hospital, University Medical Center Groningen, Groningen, The Netherlands
| | - Sofie Maebe
- Department of Pediatrics, Maastricht University Medical Center+, MosaKids Children's Hospital, Maastricht, The Netherlands
| | | | | | - Dirk Vlasselaers
- Department of Intensive Care Medicine, UZ Leuven, Louvain, Belgium
| | - Ad J J C Bogers
- Department of Cardiothoracic Surgery, Erasmus MC, Rotterdam, The Netherlands
| | - Dick Tibboel
- Department of Neonatal and Pediatric Intensive Care, Division of Pediatric Intensive Care, Erasmus MC-Sophia Children's Hospital, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
| | - Enno D Wildschut
- Department of Neonatal and Pediatric Intensive Care, Division of Pediatric Intensive Care, Erasmus MC-Sophia Children's Hospital, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
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Management of routine postoperative pain for children undergoing cardiac surgery: a Paediatric Acute Care Cardiology Collaborative Clinical Practice Guideline. Cardiol Young 2022; 32:1881-1893. [PMID: 36382361 DOI: 10.1017/s1047951122003559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
BACKGROUND Pain following surgery for cardiac disease is ubiquitous, and optimal management is important. Despite this, there is large practice variation. To address this, the Paediatric Acute Care Cardiology Collaborative undertook the effort to create this clinical practice guideline. METHODS A panel of experts consisting of paediatric cardiologists, advanced practice practitioners, pharmacists, a paediatric cardiothoracic surgeon, and a paediatric cardiac anaesthesiologist was convened. The literature was searched for relevant articles and Collaborative sites submitted centre-specific protocols for postoperative pain management. Using the modified Delphi technique, recommendations were generated and put through iterative Delphi rounds to achieve consensus. RESULTS 60 recommendations achieved consensus and are included in this guideline. They address guideline use, pain assessment, general considerations, preoperative considerations, intraoperative considerations, regional anaesthesia, opioids, opioid-sparing, non-opioid medications, non-pharmaceutical pain management, and discharge considerations. CONCLUSIONS Postoperative pain among children following cardiac surgery is currently an area of significant practice variability despite a large body of literature and the presence of centre-specific protocols. Central to the recommendations included in this guideline is the concept that ideal pain management begins with preoperative counselling and continues through to patient discharge. Overall, the quality of evidence supporting recommendations is low. There is ongoing need for research in this area, particularly in paediatric populations.
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Same baby, different care: variations in practice between neonatologists and pediatric intensivists. Eur J Pediatr 2022; 181:1669-1677. [PMID: 35006378 DOI: 10.1007/s00431-022-04372-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/20/2021] [Accepted: 01/02/2022] [Indexed: 11/03/2022]
Abstract
UNLABELLED The aim of the study was to identify and explore areas in neonatal care in which significant differences in clinical care exist, among neonatal intensive care (NICU) and pediatric intensive care (PICU) physicians. A questionnaire presenting three common scenarios in neonatal critical care-severe pneumonia, post-cardiac-surgery care, and congenital diaphragmatic hernia (CDH) was electronically sent to all PICU and NICU physicians in Israel. The survey was completed by 110 physicians. Significant differences were noted between NICU and PICU physicians' treatment choices. A non-cuffed endotracheal tube, initial high-frequency ventilation, and lower tidal volumes when applying synchronized-intermittent-mechanical-ventilation were selected more often by NICU physicians. For sedation/analgesia, NICU physicians treated as needed or by continuous infusion of a single agent, while PICU physicians more often chose to continuously infuse ≥ 2 medications. Fentanyl, midazolam, and muscle relaxants were chosen more often by PICU physicians. Morphine administration was similar for both groups. Treating CDH with pulmonary hypertension and systemic hypotension, NICU physicians more often began treatment with high dose dopamine and/or dobutamine, while PICU physicians chose low-dose adrenalin and/or milrinone. For vascular access NICU physicians chose umbilical lines most often, while PICU physicians preferred other central sites. CONCLUSION Our study identified major differences in respiratory and hemodynamic care, sedation and analgesia, and vascular access between NICU and PICU physicians, resulting from field-specific consensus guidelines and practice traditions. We suggest to establish joint committees from both professions, aimed at finding the optimal treatment for this vulnerable population - be it in the NICU or in the PICU. WHAT IS KNOWN • Variability in neonatal care between the neonatal and the pediatric intensive care units has been previously described. WHAT IS NEW • This scenario-based survey study identified major differences in respiratory and hemodynamic care, sedation and analgesia, and vascular access between neonatologists and pediatric intensivists, resulting from lack of evidence-based literature to guide neonatal care, field-specific consensus guidelines, and practice traditions. • These findings indicate a need for joint committees, combining the unique skills and literature from both professions, to conduct clinical trials focusing on these specific areas of care, aimed at finding the optimal treatment for this vulnerable population - be it in the neonatal or the pediatric intensive care unit.
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Tapia R, López-Herce J, Arias Á, del Castillo J, Mencía S. Validity and Reliability of the Richmond Agitation-Sedation Scale in Pediatric Intensive Care Patients: A Multicenter Study. Front Pediatr 2022; 9:795487. [PMID: 35047463 PMCID: PMC8762108 DOI: 10.3389/fped.2021.795487] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 11/29/2021] [Indexed: 12/14/2022] Open
Abstract
Background: There is limited data about the psychometric properties of the Richmond Agitation-Sedation Scale (RASS) in children. This study aims to analyze the validity and reliability of the RASS in assessing sedation and agitation in critically ill children. Methods: A multicenter prospective study in children admitted to pediatric intensive care, aged between 1 month and 18 years. Twenty-eight observers from 14 PICUs (pediatric intensive care units) participated. Every observation was assessed by 4 observers: 2 nurses and 2 pediatric intensivists. We analyzed RASS inter-rater reliability, construct validity by comparing RASS to the COMFORT behavior (COMFORT-B) scale and the numeric rating scale (NRS), and by its ability to distinguish between levels of sedation, and responsiveness to changes in sedative dose levels. Results: 139 episodes in 55 patients were analyzed, with a median age 3.6 years (interquartile range 0.7-7.8). Inter-rater reliability was excellent, weighted kappa (κw) 0.946 (95% CI, 0.93-0.96; p < 0.001). RASS correlation with COMFORT-B scale, rho = 0.935 (p < 0.001) and NRS, rho = 0.958 (p < 0.001) was excellent. The RASS scores were significantly different (p < 0.001) for the 3 sedation categories (over-sedation, optimum and under-sedation) of the COMFORT-B scale, with a good agreement between both scales, κw 0.827 (95% CI, 0.789-0.865; p < 0.001), κ 0.762 (95% CI, 0.713-0.811, p < 0.001). A significant change in RASS scores (p < 0.001) was recorded with the variance of sedative doses. Conclusions: The RASS showed good measurement properties in PICU, in terms of inter-rater reliability, construct validity, and responsiveness. These properties, including its ability to categorize the patients into deep sedation, moderate-light sedation, and agitation, makes the RASS a useful instrument for monitoring sedation in PICU.
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Affiliation(s)
- Rocío Tapia
- Pediatric Intensive Care Unit, Hospital Universitario Ramón y Cajal, Madrid, Spain
- Instituto Ramón y Cajal de Investigación Sanitaria (“IRYCIS”), Madrid, Spain
| | - Jesús López-Herce
- Pediatric Intensive Care Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain
- Maternal and Child Health Department (“Red SAMID”), Universidad Complutense, Madrid, Spain
- Gregorio Marañón Health Research Institute, Madrid, Spain
| | - Ángel Arias
- Research Support Unit, Hospital General Mancha Centro, Alcázar de San Juan, Spain
| | - Jimena del Castillo
- Pediatric Intensive Care Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain
- Gregorio Marañón Health Research Institute, Madrid, Spain
| | - Santiago Mencía
- Pediatric Intensive Care Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain
- Maternal and Child Health Department (“Red SAMID”), Universidad Complutense, Madrid, Spain
- Gregorio Marañón Health Research Institute, Madrid, Spain
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5
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Postoperative breakthrough pain in paediatric cardiac surgery not reduced by increased morphine concentrations. Pediatr Res 2021; 90:1201-1206. [PMID: 33603216 DOI: 10.1038/s41390-021-01383-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 11/13/2020] [Accepted: 12/22/2020] [Indexed: 11/08/2022]
Abstract
BACKGROUND Morphine is commonly used for postoperative analgesia in children. Here we studied the pharmacodynamics of morphine in children after cardiac surgery receiving protocolized morphine. METHODS Data on morphine rescue requirements guided by validated pain scores in children (n = 35, 3-36 months) after cardiac surgery receiving morphine as loading dose (100 μg kg-1) with continuous infusion (40 μg kg-1 h-1) from a previous study on morphine pharmacokinetics were analysed using repeated time-to-event (RTTE) modelling. RESULTS During the postoperative period (38 h (IQR 23-46)), 130 morphine rescue events (4 (IQR 1-5) per patient) mainly occurred in the first 24 h (107/130) at a median morphine concentration of 29.5 ng ml-1 (range 7-180 ng ml-1). In the RTTE model, the hazard of rescue morphine decreased over time (half-life 18 h; P < 0.001), while the hazard for rescue morphine (21.9% at 29.5 ng ml-1) increased at higher morphine concentrations (P < 0.001). CONCLUSIONS In this study on protocolized morphine analgesia in children, rescue morphine was required at a wide range of morphine concentrations and further increase of the morphine concentration did not lead to a decrease in hazard. Future studies should focus on a multimodal approach using other opioids or other analgesics to treat breakthrough pain in children. IMPACT In children receiving continuous morphine infusion, administration of rescue morphine is an indicator for insufficient effect or an event. Morphine rescue events were identified at a wide range of morphine concentrations upon a standardized pain protocol consisting of continuous morphine infusion and morphine as rescue boluses. The expected number of rescue morphine events was found to increase at higher morphine concentrations. Instead of exploring more aggressive morphine dosing, future research should focus on a multimodal approach to treat breakthrough pain in children.
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Long D, Gibbons K, Le Brocque R, Schults JA, Kenardy J, Dow B. Midazolam exposure in the paediatric intensive care unit predicts acute post-traumatic stress symptoms in children. Aust Crit Care 2021; 35:408-414. [PMID: 34373171 DOI: 10.1016/j.aucc.2021.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 06/01/2021] [Accepted: 06/04/2021] [Indexed: 10/20/2022] Open
Abstract
BACKGROUND Clinically significant post-traumatic stress symptoms (PTSS) have been reported in up to a quarter of paediatric intensive care unit (PICU) survivors. Ongoing PTSS negatively impacts children's psychological development and physical recovery. However, few data regarding associations between potentially modifiable PICU treatment factors, such as analgosedatives and invasive procedures, and children's PTSS have been reported. OBJECTIVES We sought to investigate the medical treatment factors associated with children's PTSS after PICU discharge. METHODS A prospective longitudinal cohort study was conducted in two Australian tertiary referral PICUs. Children aged 2-16 y admitted to the PICU between June 2008 and January 2011 for >8 h and <28 d were eligible for participation. Biometric and clinical data were obtained from medical records. Parents reported their child's PTSS using the Trauma Symptom Checklist for Young Children at 1, 3, 6, and 12 months after discharge. Logistic regression was used to assess potential associations between medical treatment and PTSS. RESULTS A total of 265 children and their parents participated in the study. In the 12-month period following PICU discharge, 24% of children exhibited clinically elevated PTSS. Median risk of death (Paediatric Index of Mortality 2 [PIM2]) score was significantly higher in the PTSS group (0.31 [IQR 0.14-1.09] v 0.67 [IQR 0.20-1.18]; p = 0.014). Intubation and PICU and hospital length of stay were also significantly associated with PTSS at 1 month, as were midazolam, propofol, and morphine. After controlling for gender, reason for admission, and PIM2 score, only midazolam was significantly and independently associated with PTSS and only at 1 month (adjusted odds ration (aOR) 3.63, 95% CI 1.18, 11.12, p = 0.024). No significant relationship was observed between the use of medications and PTSS after 1 month. CONCLUSIONS Elevated PTSS were evident in one quarter (24%) of children during the 12 months after PICU discharge. One month after discharge, elevated PTSS were most likely to occur in children who had received midazolam therapy.
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Affiliation(s)
- Debbie Long
- Paediatric Intensive Care Unit, Queensland Children's Hospital, Brisbane, Australia; School of Nursing, Centre for Healthcare Transformation, Queensland University of Technology, Brisbane, Australia; Child Health Research Centre, The University of Queensland, Brisbane, Australia.
| | - Kristen Gibbons
- Child Health Research Centre, The University of Queensland, Brisbane, Australia
| | - Robyne Le Brocque
- School of Nursing, Midwifery and Social Work, The University of Queensland, Brisbane, Australia
| | - Jessica A Schults
- School of Nursing, Midwifery and Social Work, The University of Queensland, Brisbane, Australia; Menzies Health Institute, Griffith University, Brisbane, Australia; Metro North Hospital and Health Service, Brisbane, Australia
| | - Justin Kenardy
- Child Health Research Centre, The University of Queensland, Brisbane, Australia; School of Psychology, The University of Queensland, Brisbane, Australia
| | - Belinda Dow
- Child Health Research Centre, The University of Queensland, Brisbane, Australia
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Murray-Torres TM, Tobias JD, Winch PD. Perioperative Opioid Consumption is Not Reduced in Cyanotic Patients Presenting for the Fontan Procedure. Pediatr Cardiol 2021; 42:1170-1179. [PMID: 33871683 DOI: 10.1007/s00246-021-02598-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 04/01/2021] [Indexed: 12/01/2022]
Abstract
Adequate pain control is a critical component of the perioperative approach to children undergoing repair of congenital heart disease (CHD). The impact of specific anatomic and physiologic disturbances on the management of analgesia has been largely unexplored at the present time. Studies in other pediatric populations have found an association between chronic hypoxemia and an increased sensitivity to the effects of opioid medications. The purpose of this retrospective study was to examine perioperative opioid administration and opioid-associated adverse effects in children undergoing surgical repair of CHD, with a comparison between patients with and without chronic preoperative cyanosis. Patients between the ages of 2 and 5 years whose tracheas were extubated in the operating room were included and were classified in the cyanotic group if they presented for the Fontan completion. The primary outcomes of interest were intraoperative and postoperative opioid administration. Secondary outcomes included pain scores and opioid-related side effects. The study cohort included 156 patients. Seventy-one underwent the Fontan procedure, twelve of which were fenestrated. Fontan patients received fewer opioids intraoperatively (11.33 µg/kg fentanyl equivalents versus 12.56 µg/kg, p = 0.03). However, there were no differences with regards to opioid consumption postoperatively and no correlation between preoperative oxygen saturation and total opioid administration. There were no differences between groups with regards to the respiratory rate nadir, postoperative pain scores, or the incidence of opioid-related side effects. In contrast to other populations with chronic hypoxemia exposure, children with cyanotic CHD did not appear to have increased sensitivity to the effects of opioid medications.
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Affiliation(s)
- Teresa M Murray-Torres
- Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH, USA
- Department of Anesthesiology, St. Louis Children's Hospital, Washington University School of Medicine, St. Louis, MO, USA
| | - Joseph D Tobias
- Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH, USA
- Department of Anesthesiology and Pain Medicine, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Peter D Winch
- Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH, USA.
- Department of Anesthesiology and Pain Medicine, The Ohio State University College of Medicine, Columbus, OH, USA.
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Alaeddine M, D'Cunha J. Commentary: Enhanced Recovery After Congenital Cardiac Surgery: Just Say "Yes" to the Benefits of Reduced Opioid Usage. Semin Thorac Cardiovasc Surg 2021; 34:273-274. [PMID: 33610699 DOI: 10.1053/j.semtcvs.2021.01.045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 01/05/2021] [Indexed: 11/11/2022]
Affiliation(s)
- Mohamad Alaeddine
- Division of Cardiovascular Surgery, Phoenix Children's Hospital, Phoenix, Arizona
| | - Jonathan D'Cunha
- Department of Cardiothoracic Surgery, Mayo Clinic Arizona, Phoenix, Arizona.
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Sedation, Analgesia, and Neuromuscular Blockade: An Assessment of Practices From 2009 to 2016 in a National Sample of 66,443 Pediatric Patients Cared for in the ICU. Pediatr Crit Care Med 2020; 21:e599-e609. [PMID: 32195896 PMCID: PMC7483172 DOI: 10.1097/pcc.0000000000002351] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVES To describe the pharmaceutical management of sedation, analgesia, and neuromuscular blockade medications administered to children in ICUs. DESIGN A retrospective analysis using data extracted from the national database Health Facts. SETTING One hundred sixty-one ICUs in the United States with pediatric admissions. PATIENTS Children in ICUs receiving medications from 2009 to 2016. EXPOSURE/INTERVENTION Frequency and duration of administration of sedation, analgesia, and neuromuscular blockade medications. MEASUREMENTS AND MAIN RESULTS Of 66,443 patients with a median age of 1.3 years (interquartile range, 0-14.5), 63.3% (n = 42,070) received nonopioid analgesic, opioid analgesic, sedative, and/or neuromuscular blockade medications consisting of 83 different agents. Opioid and nonopioid analgesics were dispensed to 58.4% (n = 38,776), of which nonopioid analgesics were prescribed to 67.4% (n = 26,149). Median duration of opioid analgesic administration was 32 hours (interquartile range, 7-92). Sedatives were dispensed to 39.8% (n = 26,441) for a median duration of 23 hours (interquartile range, 3-84), of which benzodiazepines were most common (73.4%; n = 19,426). Neuromuscular-blocking agents were dispensed to 17.3% (n = 11,517) for a median duration of 2 hours (interquartile range, 1-15). Younger age was associated with longer durations in all medication classes. A greater proportion of operative patients received these medication classes for a longer duration than nonoperative patients. A greater proportion of patients with musculoskeletal and hematologic/oncologic diseases received these medication classes. CONCLUSIONS Analgesic, sedative, and neuromuscular-blocking medications were prescribed to 63.3% of children in ICUs. The durations of opioid analgesic and sedative medication administration found in this study can be associated with known complications, including tolerance and withdrawal. Several medications dispensed to pediatric patients in this analysis are in conflict with Food and Drug Administration warnings, suggesting that there is potential risk in current sedation and analgesia practice that could be reduced with practice changes to improve efficacy and minimize risks.
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10
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Mizuno T, Dong M, Taylor ZL, Ramsey LB, Vinks AA. Clinical implementation of pharmacogenetics and model-informed precision dosing to improve patient care. Br J Clin Pharmacol 2020; 88:1418-1426. [PMID: 32529759 DOI: 10.1111/bcp.14426] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 05/15/2020] [Accepted: 05/26/2020] [Indexed: 12/15/2022] Open
Abstract
Providing maximal therapeutic efficacy without toxicity is a universal goal of rational drug therapy. However, substantial between-patient variability in drug response often impedes such successful treatments and brings the necessity of tailoring drug dose to individual needs for more precise therapy. In many cases plenty of patient characteristics, such as body size, genetic makeup and environmental factors, need to be taken into consideration to find the optimal dose in clinical practice. A pharmacokinetics and pharmacodynamics (PK/PD) model-informed approach offers integration of various patient information to provide an expectation of drug response and derive practical dose estimates to support clinicians' dosing decisions. Such an approach was pioneered in the late 1970s, but its broad clinical acceptance and implementation have been hampered by the lack of widespread computer technology, including user-friendly software tools. This has significantly changed in recent years. With the advent of electronic health records (EHRs) and the ubiquity of user-friendly software tools, we now experience a convergence of clinical information, pharmacogenetics, systems pharmacology and pharmacometrics, and technology. Advanced pharmacometrics research is now more appliable and implementable to improve health care. This article presents examples of successful development and implementation of pharmacogenetics-guided and PK/PD model-informed decision support to facilitate precision dosing, including the development of an EHR-embedded decision support tool. Through the integration of clinical decision support tools in EHRs, clinical pharmacometrics support can be brought directly to the clinical team and the bedside.
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Affiliation(s)
- Tomoyuki Mizuno
- Division of Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Min Dong
- Division of Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Zachary L Taylor
- Division of Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Division of Research in Patient Services, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Molecular, Cellular, and Biochemical Pharmacology, University of Cincinnati, Cincinnati, Ohio, USA
| | - Laura B Ramsey
- Division of Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Division of Research in Patient Services, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Alexander A Vinks
- Division of Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Division of Research in Patient Services, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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11
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Valkenburg AJ, Goulooze SC, Ng CY, Breatnach CV, Tibboel D, van Dijk M, Knibbe CAJ, Krekels EHJ. Exploring the Relationship Between Morphine Concentration and Oversedation in Children After Cardiac Surgery. J Clin Pharmacol 2020; 60:1231-1236. [PMID: 32434285 PMCID: PMC7496665 DOI: 10.1002/jcph.1620] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 03/25/2020] [Indexed: 11/18/2022]
Abstract
Titrating analgesic and sedative drugs in pediatric intensive care remains a challenge for caregivers due to the lack of pharmacodynamic knowledge in this population. The aim of the current study is to explore the concentration‐effect relationship for morphine‐associated oversedation after cardiac surgery in children aged 3 months to 3 years. Data on morphine dosing, as well as morphine plasma concentrations, were available from a previous study on the pharmacokinetics of morphine after cardiac surgery in children. Oversedation was defined as scores below 11 on the validated COMFORT–behavioral scale. Population pharmacokinetic‐pharmacodynamic modeling was performed in NONMEM 7.3. The probability of oversedation as a function of morphine concentration was best described using a step function in which the EC50 was 46.3 ng/mL. At morphine concentrations below the EC50, the probability of oversedation was 2.9% (0.4& to 18%), whereas above the EC50 percentages were 13% (1.9% to 52%) (median value [95% prediction interval from interindividual variability]). Additionally, the risk of oversedation was found to be increased during the first hours after surgery (P < .001) and was significantly lower during mechanical ventilation (P < .005). We conclude that morphine concentrations above approximately 45 ng/mL may increase the probability of oversedation in children after cardiac surgery. The clinician must evaluate, on a case‐by‐case basis, whether the analgesic benefits arising from dosing regimen associated with such concentrations outweigh the risks.
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Affiliation(s)
- Abraham J Valkenburg
- Department of Intensive Care, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Sebastiaan C Goulooze
- Division of Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research, Leiden University, Leiden, the Netherlands
| | - Chun Yin Ng
- Division of Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research, Leiden University, Leiden, the Netherlands
| | - Cormac V Breatnach
- Department of Anaesthesia and Critical Care Medicine, Our Lady's Children's Hospital, Dublin, Ireland
| | - Dick Tibboel
- Department of Pediatric Surgery, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Monique van Dijk
- Department of Pediatric Surgery, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, the Netherlands.,Division of Nursing Science, Department of Internal Medicine, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Catherijne A J Knibbe
- Division of Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research, Leiden University, Leiden, the Netherlands.,St. Antonius Hospital, Department of Clinical Pharmacy, Nieuwegein, the Netherlands
| | - Elke H J Krekels
- Division of Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research, Leiden University, Leiden, the Netherlands
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12
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Disruption of Rapid Eye Movement Sleep Homeostasis in Adolescent Rats after Neonatal Anesthesia. Anesthesiology 2020; 130:981-994. [PMID: 30946702 DOI: 10.1097/aln.0000000000002660] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Previous studies suggest that rapid eye movement sleep rebound and disruption of rapid eye movement sleep architecture occur during the first 24 h after general anesthesia with volatile anesthetics in adult rats. However, it is unknown whether rapid eye movement sleep alterations persist beyond the anesthetic recovery phase in neonatal rats. This study tested the hypothesis that rapid eye movement sleep disturbances would be present in adolescent rats treated with anesthesia on postnatal day 7. METHODS Forty-four neonatal rats were randomly allocated to treatment with anesthesia consisting of midazolam, nitrous oxide, and isoflurane or control conditions for 2 h or 6 h. Electroencephalographic and electromyographic electrodes were implanted and recordings obtained between postnatal days 26 and 34. The primary outcome was time spent in rapid eye movement sleep. Data were analyzed using two-tailed unpaired t tests and two-way repeated measures analysis of variance. RESULTS Rats treated with midazolam, nitrous oxide, and isoflurane exhibited a significant increase in rapid eye movement sleep three weeks later when compared with control rats, regardless of whether they were treated for 2 h (174.0 ± 7.2 min in anesthetized, 108.6 ± 5.3 in controls, P < 0.0001) or 6 h (151.6 ± 9.9 min in anesthetized, 108.8 ± 7.1 in controls, P = 0.002). CONCLUSIONS Treatment with midazolam, nitrous oxide, and isoflurane on postnatal day 7 increases rapid eye movement sleep three weeks later in rats.
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13
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Vinks AA, Punt NC, Menke F, Kirkendall E, Butler D, Duggan TJ, Cortezzo DE, Kiger S, Dietrich T, Spencer P, Keefer R, Setchell KD, Zhao J, Euteneuer JC, Mizuno T, Dufendach KR. Electronic Health Record-Embedded Decision Support Platform for Morphine Precision Dosing in Neonates. Clin Pharmacol Ther 2020; 107:186-194. [PMID: 31618453 PMCID: PMC7378965 DOI: 10.1002/cpt.1684] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 10/14/2019] [Indexed: 12/13/2022]
Abstract
Morphine is the opioid most commonly used for neonatal pain management. In intravenous form, it is administered as continuous infusions and intermittent injections, mostly based on empirically established protocols. Inadequate pain control in neonates can cause long-term adverse consequences; however, providing appropriate individualized morphine dosing is particularly challenging due to the interplay of rapid natural physiological changes and multiple life-sustaining procedures in patients who cannot describe their symptoms. At most institutions, morphine dosing in neonates is largely carried out as an iterative process using a wide range of starting doses and then titrating to effect based on clinical response and side effects using pain scores and levels of sedation. Our background data show that neonates exhibit large variability in morphine clearance resulting in a wide range of exposures, which are poorly predicted by dose alone. Here, we describe the development and implementation of an electronic health record-integrated, model-informed decision support platform for the precision dosing of morphine in the management of neonatal pain. The platform supports pharmacokinetic model-informed dosing guidance and has functionality to incorporate real-time drug concentration information. The feedback is inserted directly into prescribers' workflows so that they can make data-informed decisions. The expected outcomes are better clinical efficacy and safety with fewer side effects in the neonatal population.
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Affiliation(s)
- Alexander A. Vinks
- Division of Clinical Pharmacology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | | | - Frank Menke
- Department Information Services, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Eric Kirkendall
- Division of Biomedical Informatics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Wake Forest Center for Healthcare Innovation, Wake Forest School of Medicine, Winston-Salem, N.C
| | - Dawn Butler
- Division of Pharmacy, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Thomas J. Duggan
- Division of Neonatology and Pulmonary Biology, Perinatal Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - DonnaMaria E. Cortezzo
- Division of Neonatology and Pulmonary Biology, Perinatal Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Department of Anesthesiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Pain and Palliative Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Sam Kiger
- Department Information Services, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Tom Dietrich
- Department of Interactive Services, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | | | - Rob Keefer
- Pomiet, Health IT Systems, Cincinnati, OH, USA
| | - Kenneth D.R. Setchell
- Division of Pathology and Laboratory Medicine, Clinical Mass Spectrometry, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH. USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Junfang Zhao
- Division of Pathology and Laboratory Medicine, Clinical Mass Spectrometry, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH. USA
| | | | - Tomoyuki Mizuno
- Division of Clinical Pharmacology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
- Children’s Hospital & Medical Center and Department of Pediatrics, University of Nebraska Medical Center, Omaha, Nebraska, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Kevin R. Dufendach
- Division of Biomedical Informatics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Division of Neonatology and Pulmonary Biology, Perinatal Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
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14
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Ismail A, Forgeron P, Polomeno V, Gharaibeh H, Dagg W, Harrison D. Pain management interventions in the Paediatric Intensive Care Unit: A scoping review. Intensive Crit Care Nurs 2019; 54:96-105. [DOI: 10.1016/j.iccn.2019.05.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 05/13/2019] [Accepted: 05/18/2019] [Indexed: 01/18/2023]
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15
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Pollak U, Bronicki RA, Achuff BJ, Checchia PA. Postoperative Pain Management in Pediatric Patients Undergoing Cardiac Surgery: Where Are We Heading? J Intensive Care Med 2019:885066619871432. [PMID: 31446831 DOI: 10.1177/0885066619871432] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVES Adequate postoperative pain management is crucial in pediatric patients undergoing cardiac surgery because pain can lead to devastating short- and long-term consequences. This review discusses the limitations of current postoperative pain assessment and management in children after cardiac surgery, the obstacles to providing optimal treatment, and concepts to consider that may overcome these barriers. DATA SOURCE MEDLINE and PubMed. CONCLUSIONS Effective pain management in infants and young children undergoing cardiac surgery continues to evolve with innovative methods of both assessment and therapy using newer drugs or novel routes of administration. Artificial intelligence- and machine learning-based pain assessment and patient-tailored management in both pain measurement and prevention are already being integrated into the routine of current practice.
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Affiliation(s)
- Uri Pollak
- 1 Pediatric Cardiac Critical Care Unit, Hadassah University Medical Center, Ein Kerem, Jerusalem, Israel
- 2 Pediatric Cardiology, Hadassah University Medical Center, Ein Kerem, Jerusalem, Israel
- 3 Pediatric Extracorporeal Support Program, Hadassah University Medical Center, Ein Kerem, Jerusalem, Israel
- 4 The Hebrew University Hadassah Medical School, Jerusalem, Israel
| | - Ronald A Bronicki
- 5 Department of Pediatrics, Critical Care Medicine and Cardiology, Baylor College of Medicine, Houston, TX, USA
- 6 Pediatric Cardiovascular Intensive Care Unit, Texas Children's Hospital, Houston, TX, USA
| | - Barbara-Jo Achuff
- 5 Department of Pediatrics, Critical Care Medicine and Cardiology, Baylor College of Medicine, Houston, TX, USA
- 6 Pediatric Cardiovascular Intensive Care Unit, Texas Children's Hospital, Houston, TX, USA
| | - Paul A Checchia
- 5 Department of Pediatrics, Critical Care Medicine and Cardiology, Baylor College of Medicine, Houston, TX, USA
- 6 Pediatric Cardiovascular Intensive Care Unit, Texas Children's Hospital, Houston, TX, USA
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16
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Saelim K, Chavananon S, Ruangnapa K, Prasertsan P, Anuntaseree W. Effectiveness of Protocolized Sedation Utilizing the COMFORT-B Scale in Mechanically Ventilated Children in a Pediatric Intensive Care Unit. J Pediatr Intensive Care 2019; 8:156-163. [PMID: 31402992 DOI: 10.1055/s-0039-1678730] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 01/13/2019] [Indexed: 10/27/2022] Open
Abstract
Appropriate sedation in mechanically ventilated patients is important to facilitate adequate respiratory support and maintain patient safety. However, the optimal sedation protocol for children is unclear. This study assessed the effectiveness of a sedation protocol utilizing the COMFORT-B sedation scale in reducing the duration of mechanical ventilation in children. This was a nonrandomized prospective cohort study compared with a historical control. The prospective cohort study was conducted between November 2015 and August 2016 and included 58 mechanically ventilated patients admitted to the pediatric intensive care unit (PICU). All patients received protocolized sedation utilizing the COMFORT-B scale, which was assessed every 12 hours after intubation by a single assessor. The prospective data were compared with retrospective data of 58 mechanically ventilated patients who received sedation by usual care from November 2014 to August 2015. Fifty percent of 116 patients were male and the mean age was 22 months (interquartile range [IQR]: 6.6-68.4). Patients in the intervention group showed no difference in the duration of mechanical ventilation (median 4.5 [IQR: 2.2-10.5] vs. 5 [IQR: 3-8.8] days). Also, there were no significant differences in the PICU length of stay (LOS; median 7 vs. 7 days, p = 0.59) and hospital LOS (median 18 vs. 14 days, p = 0.14) between the intervention and control groups. The percentages of sedative drugs, including fentanyl, morphine, and midazolam, in each group were not statistically different. The COMFORT-B scale with protocolized sedation in mechanically ventilated pediatric patients in the PICU did not reduce the duration of mechanical ventilation compared with usual care.
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Affiliation(s)
- Kantara Saelim
- Department of Pediatrics, Faculty of Medicine, Prince of Songkla University, Songkla, Thailand
| | - Shevachut Chavananon
- Department of Pediatrics, Faculty of Medicine, Prince of Songkla University, Songkla, Thailand
| | - Kanokpan Ruangnapa
- Department of Pediatrics, Faculty of Medicine, Prince of Songkla University, Songkla, Thailand
| | - Pharsai Prasertsan
- Department of Pediatrics, Faculty of Medicine, Prince of Songkla University, Songkla, Thailand
| | - Wanaporn Anuntaseree
- Department of Pediatrics, Faculty of Medicine, Prince of Songkla University, Songkla, Thailand
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17
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Mian P, Valkenburg AJ, Allegaert K, Koch BCP, Breatnach CV, Knibbe CAJ, Tibboel D, Krekels EHJ. Population Pharmacokinetic Modeling of Acetaminophen and Metabolites in Children After Cardiac Surgery With Cardiopulmonary Bypass. J Clin Pharmacol 2019; 59:847-855. [PMID: 30633373 PMCID: PMC6590134 DOI: 10.1002/jcph.1373] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 12/17/2018] [Indexed: 12/15/2022]
Abstract
Children undergoing cardiac surgery often receive acetaminophen (paracetamol) as part of their postoperative pain treatment. To date, there is no information on the pharmacokinetics (PK) of acetaminophen in this special population, even though differences, as a result of altered hemodynamics and/or use of cardiopulmonary bypass, may be anticipated. Therefore, the aim of this study was to investigate the PK of intravenous acetaminophen in children after cardiac surgery with cardiopulmonary bypass. In the study, both children with and without Down syndrome were included. A population PK analysis, using NONMEM 7.2, was performed based on 161 concentrations of acetaminophen, acetaminophen sulfate, acetaminophen glucuronide, and oxidative metabolites from 17 children with Down syndrome and 13 children without Down syndrome of a previously published study (median age, 177 days [range, 92-944], body weight, 6.1 kg [4.0-12.9]). All children received 3 intravenous acetaminophen doses of 7.5 mg/kg (<10 kg) or 15 mg/kg (≥10 kg) at 8-hour intervals after cardiac surgery. For acetaminophen and its metabolites, 1-compartment models were identified. Clearance of acetaminophen and metabolites increased linearly with body weight. Acetaminophen clearance in a typical child of 6.1 kg is 0.96 L/h and volume of distribution 7.96 L. Down syndrome did not statistically significantly impact any of the PK parameters for acetaminophen, nor did any other remaining covariate. When comparing the PK parameters of acetaminophen in children after cardiac surgery with cardiopulmonary bypass with those from children of the same age following noncardiac surgery reported in the literature, clearance of acetaminophen was lower and volume of distribution higher.
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Affiliation(s)
- P Mian
- Intensive Care and Department of Paediatric Surgery, Erasmus MC Sophia Children's Hospital, Rotterdam, The Netherlands
| | - A J Valkenburg
- Intensive Care and Department of Paediatric Surgery, Erasmus MC Sophia Children's Hospital, Rotterdam, The Netherlands.,Department of Anesthesiology, Erasmus MC, Rotterdam, The Netherlands
| | - K Allegaert
- Intensive Care and Department of Paediatric Surgery, Erasmus MC Sophia Children's Hospital, Rotterdam, The Netherlands.,Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - B C P Koch
- Department of Hospital Pharmacy, Erasmus MC, Rotterdam, The Netherlands
| | - C V Breatnach
- Department of Anesthesia and Critical Care Medicine, Our Lady's Children's Hospital, Dublin, Ireland
| | - C A J Knibbe
- Division of Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands.,Department of Clinical Pharmacy, St. Antonius Hospital, Nieuwegein, The Netherlands
| | - D Tibboel
- Intensive Care and Department of Paediatric Surgery, Erasmus MC Sophia Children's Hospital, Rotterdam, The Netherlands
| | - E H J Krekels
- Division of Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
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