Sufentanil pharmacokinetics in a full-term neonate treated with extracorporeal membrane oxygenation: a case report

Perfusion ◽  
2019 ◽  
Vol 34 (5) ◽  
pp. 433-436 ◽  
Author(s):  
Pavla Pokorná ◽  
Martin Šíma ◽  
Václav Vobruba ◽  
Martina Bašková ◽  
Lenka Posch ◽  
...  
Keyword(s):  
Drug Interaction ◽  
Case Report ◽  
Extracorporeal Membrane Oxygenation ◽  
Plasma Concentrations ◽  
Volume Of Distribution ◽  
Pharmacokinetic Parameters ◽  
Pharmacokinetic Data ◽  
Analgesic Drug ◽  
Membrane Oxygenation ◽  
Ischemic Encephalopathy

Introduction: Sufentanil is a potent analgesic drug used for pain management. A few studies describe the pharmacokinetics of sufentanil in neonates; however, no pharmacokinetic data about sufentanil during extracorporeal membrane oxygenation have been published yet. Case report: A 1-day-old neonate with moderate hypoxic–ischemic encephalopathy received veno-arterial extracorporeal membrane oxygenation support for refractory respiratory and circulatory failure. Sufentanil plasma concentrations were determined during both extracorporeal membrane oxygenation (n = 14) and non–extracorporeal membrane oxygenation (n = 17) period. Based on these measurements, individual sufentanil pharmacokinetic parameters were calculated. Discussion: We observed increased sufentanil volume of distribution (11.6 vs 5.6 L/kg) and decreased sufentanil clearance (0.535 vs 0.746 L/h/kg) in extracorporeal membrane oxygenation period. The increment of volume of distribution was attributed to ECMO influence, while difference in clearance was probably due to drug interaction. Conclusions: This is the first description of sufentanil pharmacokinetics in neonate treated with extracorporeal membrane oxygenation. We observed considerably larger volume of distribution during extracorporeal membrane oxygenation period in comparison with non–extracorporeal membrane oxygenation period.

Pharmacokinetics of linezolid for methicillin-resistant Staphylococcus aureus pneumonia in an adult receiving extracorporeal membrane oxygenation

2020 ◽  
Vol 77 (11) ◽  
pp. 877-881 ◽  
Author(s):  
Peter Nikolos ◽  
Justin Osorio ◽  
Kerry Mohrien ◽  
Christina Rose
Keyword(s):  
Staphylococcus Aureus ◽  
Respiratory Failure ◽  
Extracorporeal Membrane Oxygenation ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Plasma Concentrations ◽  
Area Under The Curve ◽  
Volume Of Distribution ◽  
Minimum Concentration ◽  
Methicillin Resistant ◽  
Membrane Oxygenation

Abstract Purpose We present a case of a 55-year-old man post right lung transplantation receiving ECMO for treatment of respiratory failure secondary to methicillin-resistant Staphylococcus aureus (MRSA) pneumonia. Summary Extracorporeal membrane oxygenation (ECMO) is a frequently utilized support therapy for patients with cardiac and/or respiratory failure. Dosing of medications during ECMO can be challenging due to several factors, including sequestration of medications within ECMO circuits, alterations in volume of distribution, and changes in drug clearance. The patient was initiated on empiric antibiotics, then switched to linezolid at a dose of 600 mg every 8 hours. Linezolid plasma concentrations were collected 30 minutes prior to the sixth administered dose and 30 minutes following the 1-hour infusion of the sixth dose, which resulted in values of 0.4 and 1.7 μg/mL, respectively. The ratio of 24-hour area under the curve (AUC0-24) to minimum inhibitory concentration (MIC), assuming a MIC of 2 μg/mL, was calculated using the extrapolated maximum concentration (1.9 μg/mL) and minimum concentration (0.35 μg/mL), resulting in an AUC0-24/MIC value of 10.8. Due to subtherapeutic linezolid plasma concentrations, ceftaroline was initiated and continued for a total of 18 days. To our knowledge, this is the second report to describe inadequate plasma concentrations of linezolid during ECMO. Conclusion In the case described here, linezolid at a dose of 600 mg every 8 hours did not achieve target plasma concentrations in a patient receiving concomitant venovenous ECMO support.

scholarly journals Phenobarbital pharmacokinetics in neonates and infants during extracorporeal membrane oxygenation

Perfusion ◽  
2018 ◽  
Vol 33 (1_suppl) ◽  
pp. 80-86 ◽  
Author(s):  
Pavla Pokorná ◽  
Martin Šíma ◽  
Václav Vobruba ◽  
Dick Tibboel ◽  
Ondřej Slanař
Keyword(s):  
Body Weight ◽  
Extracorporeal Membrane Oxygenation ◽  
Volume Of Distribution ◽  
Individual Variability ◽  
Therapeutic Drug ◽  
Pharmacokinetic Data ◽  
Serum Concentrations ◽  
Linear Regression Models ◽  
Membrane Oxygenation ◽  
Neonates And Infants

Introduction: The disposition of drugs is potentially changed due to extracorporeal membrane oxygenation (ECMO) in neonates and infants. Methods: The aim of the study was to evaluate the individual pharmacokinetics (PK) of phenobarbital and the effect of PK covariates in neonates and infants undergoing ECMO. Sixteen patients (7 neonates, 9 infants) treated with phenobarbital during ECMO (centrifugal-flow pump circuits) were enrolled in the PK study. Phenobarbital serum concentrations were measured using a fluorescence polarization immunoassay. Individual PK parameters - volume of distribution (Vd) and clearance (CL) were calculated in a one-compartmental pharmacokinetic model. Results: The mean (SD) Vd and CL values in neonates were 0.46 (0.24) L/kg and 8.0 (4.5) mL/h/kg, respectively. Respective values in infants were 0.56 (0.23) L/kg and 8.5 (3.1) mL/h/kg. PK parameters in neonates and infants were not significantly different. We observed high inter-individual variability in PK parameters (coefficients of variation [CV] were 52% and 53% for CL and Vd, respectively). Doses were adjusted based on therapeutic drug monitoring (TDM) in 87.5% patients. Only 50% of the first measured phenobarbital serum concentrations in each patient were within the therapeutic range of 10-40 mg/L, in comparison with 88.6% concentration measured after TDM implementation. Linear regression models showed that both Vd and CL are significantly related with body weight (BW) and length. Median optimal phenobarbital loading dose (LD) and maintenance dose (MD), calculated from pharmacokinetic data, were 15 mg/kg and 4 mg/kg/day, respectively. Conclusions: Body weight was shown to be the main PK covariate of phenobarbital disposition. Subsequent dosing nomograms are provided for phenobarbital dosing during ECMO.

scholarly journals Pharmacokinetics of vancomycin in critically ill infants undergoing extracorporeal membrane oxygenation.

1996 ◽  
Vol 40 (5) ◽  
pp. 1139-1142 ◽  
Author(s):  
R D Amaker ◽  
J T DiPiro ◽  
J Bhatia
Keyword(s):  
Renal Impairment ◽  
Extracorporeal Membrane Oxygenation ◽  
Half Life ◽  
Compartment Model ◽  
Volume Of Distribution ◽  
Pharmacokinetic Parameters ◽  
Published Data ◽  
Term Infants ◽  
Circulating Blood Volume ◽  
Membrane Oxygenation

Extracorporeal membrane oxygenation (ECMO) is a widely used therapy for neonates with respiratory failure. Because of sepsis, many of these infants require antibiotics like vancomycin during ECMO treatment. ECMO transiently alters renal function and increases the circulating blood volume by 75%. Initial vancomycin pharmacokinetics were determined in 12 infants undergoing ECMO to determine an adequate drug administration regimen. Vancomycin dosage was based on current recommendations for weight and gestational age. Pharmacokinetic parameters were determined by fitting the data to a two compartment model. This study yielded a mean steady-state volume of distribution of 1.1 +/- 0.5 (range, 0.6 to 2.1) liters/kg and a mean vancomycin clearance of 0.78 +/- 0.19 (range, 0.49 to 1.07) ml/min/kg. The mean vancomycin half-life was 16.9 +/- 9.5 (range, 8.8 to 42.9) h. Nomogram-calculated creatinine clearance was a significant predictor of vancomycin terminal rate constant and clearance. These data suggest alterations in the pharmacokinetics of vancomycin in infants on ECMO. With the goal of achieving vancomycin concentrations in serum above the MIC for the offending pathogen while using the least amount of the drug necessary, new administration guidelines for term infants without renal impairment undergoing ECMO should be 20 mg of vancomycin per kg at an interval of 24 h. With significant renal impairment, the interval should be extended on the basis of concentrations in serum. In comparison with previously published data, the neonates undergoing ECMO in our study demonstrated a much larger volume of distribution, a lower clearance, and consequently a longer vancomycin half-life.

Treatment of hyperammonemia using in-line renal replacement and hyperosmolar therapies within an extracorporeal membrane oxygenation circuit

Perfusion ◽  
2021 ◽  
pp. 026765912110359
Author(s):  
Alison Grazioli ◽  
Jamie E Podell ◽  
Aldo Iacono ◽  
Alexander Sasha Krupnik ◽  
Ronson J Madathil ◽  
...  
Keyword(s):  
Extracorporeal Membrane Oxygenation ◽  
Cerebral Edema ◽  
Urea Cycle ◽  
Rare Complication ◽  
Volume Of Distribution ◽  
Intermittent Hemodialysis ◽  
Treatment Goals ◽  
Continuous Venovenous Hemofiltration ◽  
Small Molecular Weight ◽  
Membrane Oxygenation

After orthotopic lung transplantation, hyperammonemia can be a rare complication secondary to infection by organisms that produce urease or inhibit the urea cycle. This can cause neurotoxicity, cerebral edema, and seizures. Ammonia is unique in that it has a large volume of distribution. However, it is also readily dialyzable given its small molecular weight. As such, removal of ammonia requires renal replacement modalities that can both rapidly remove ammonia from the plasma space and allow for continuous removal to prevent rebound accumulation from intracellular stores. Prevention of iatrogenic osmotic lowering in this setting is required to prevent worsening of cerebral edema. Herein, we describe use of sequential in-line renal replacement therapy using both intermittent hemodialysis and continuous venovenous hemofiltration within an extracorporeal membrane oxygenation circuit in conjunction with higher sodium dialysate and 7.5% hypertonic saline to achieve these treatment goals.

scholarly journals Successful extracorporeal membrane oxygenation resuscitation of patient with cardiogenic shock induced by phaeochromocytoma crisis mimicking hyperthyroidism: A case report

2021 ◽  
Vol 16 (1) ◽  
pp. 746-751
Author(s):  
Tao Wang ◽  
Qiancheng Xu ◽  
Xiaogan Jiang
Keyword(s):  
Case Report ◽  
Extracorporeal Membrane Oxygenation ◽  
Cardiogenic Shock ◽  
Tumour Size ◽  
Acute Onset ◽  
Left Ventricular ◽  
Vanillylmandelic Acid ◽  
Membrane Oxygenation ◽  
First Case ◽  
Va Ecmo

Abstract A 29-year-old woman presented to the emergency department with the acute onset of palpitations, shortness of breath, and haemoptysis. She reported having an abortion (56 days of pregnancy) 1 week before admission because of hyperthyroidism diagnosis during pregnancy. The first diagnoses considered were cardiomyopathy associated with hyperthyroidism, acute left ventricular failure, and hyperthyroidism crisis. The young woman’s cardiocirculatory system collapsed within several hours. Hence, venoarterial extracorporeal membrane oxygenation (VA ECMO) was performed for this patient. Over the next 3 days after ECMO was established, repeat transthoracic echocardiography showed gradual improvements in biventricular function, and later the patient recovered almost completely. The patient’s blood pressure increased to 230/130 mm Hg when the ECMO catheter was removed, and then the diagnosis of phaeochromocytoma was suspected. Computed tomography showed a left suprarenal tumour. The tumour size was 5.8 cm × 5.7 cm with central necrosis. The vanillylmandelic acid concentration was 63.15 mg/24 h. Post-operation, pathology confirmed phaeochromocytoma. To our knowledge, this is the first case report of a patient with cardiogenic shock induced by phaeochromocytoma crisis mimicking hyperthyroidism which was successfully resuscitated by VA ECMO.

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