Use of Levosimendan in Postoperative Setting After Surgical Repair of Congenital Heart Disease in Children.

Low cardiac output is one of the most common complications after cardiac surgery. Levosimendan, a new inotrope agent, has been demonstrated in adult patient to be an effective treatment for this purpose when classical therapy is not effective. The aim of this study was to evaluate the effect of Levosimendan on cardiac output parameters in cardiac children with low cardiac output syndrome (LCOS.). We carried out a retrospective analysis on 62 children hospitalized in our pediatric intensive care unit (PICU) after cardiac surgery, which demonstrated LCOS not responding to classical catecholamine therapy and who received levosimendan as rescue therapy. LCOS parameters like diuresis, central venous oxygen saturation (SvO2), venous-to-arterial CO2 difference (∆avCO2), and plasmatic lactate were compared before therapy and at 3, 6, 12, and 24 h after the beginning of the levosimendan infusion. We also analyzed the effect on the Vasoactive-inotropic score (VIS), adverse events, and mortality. After the beginning of levosimendan infusion, diuresis (1.1 vs. 3.5 ml/kg/h, p = 0.001) and SvO2 (59.5 vs. 63.3%, p = 0.026) increased significantly during the 24 h of infusion, and at the same time, plasmatic lactate (2.3 vs. 1.3 mmol/l, p < 0.001) decreased. ∆avCO2 (10.8 vs. 9.4 mmHg, p = 0.21) and the VIS (44.5 vs. 22.5, p = 0.143) also decreased, but not significantly. No side effects were noted. The mortality in this patient group was 16%. Levosimendan is an effective treatment in children presenting LCOS after congenital heart surgery. Our study confirms the improvement of cardiac output already shown in other pediatric studies, with no undesirable side effects.

Quality of clinical practice guidelines and recommendations for the management of pain, sedation, delirium and iatrogenic withdrawal in pediatric intensive care: a systematic review protocol.

INTRODUCTION: Inadequate management of pain and sedation in critically ill children can cause unnecessary suffering and agitation, but also delirium and iatrogenic withdrawal. It is, therefore, important to address these four interrelated conditions together. Some clinical practice guidelines (CPGs) are available for the management of pain and sedation, and a few for delirium and iatrogenic withdrawal in the paediatric intensive care unit; none address the four conditions altogether. Critical appraisal of the quality of CPGs is necessary for their recommendations to be adopted into clinical practice. The aim of this systematic review is to identify and appraise the quality of CPGs and recommendations for management of either pain, sedation, delirium and iatrogenic withdrawal. METHODS AND ANALYSIS: Researchers will conduct a systematic review in electronic databases (Medline ALL (Ovid), Embase.com, CINAHL with Full Text (EBSCO), JBI EBP Database (Ovid)), guideline repositories and websites of professional societies to identify CPGs published from 2010 to date. They will then combine index and free terms describing CPGs with pain, sedation, delirium and withdrawal. The researchers will include CPGs if they can be applied in the paediatric intensive care population (newborns to 18 years old) and include recommendation(s) for assessment of at least one of the four conditions. Two independent reviewers will screen for eligibility, complete data extraction and quality assessments using the Appraisal of Guidelines for Research and Evaluation (AGREE) II and the AGREE Recommendation Excellence instruments. Researchers will report characteristics, content and recommendations from CPGs in tabulated forms. ETHICS AND DISSEMINATION: Ethical approval is not required for this systematic review. Results will be published in a peer-reviewed journal. PROSPERO REGISTRATION NUMBER: CRD42021274364.

Suspected Case of Drug-Induced Acute Respiratory Distress Syndrome following Trimethoprim-Sulfamethoxazole Treatment.

In this article, we reported the case of a child patient who was admitted to our PICU for severe acute respiratory distress syndrome (ARDS) while being treated with trimethoprim-sulfamethoxazole (TMP-SMX) for osteomyelitis. Based on the timing of exposure, lack of alternative explanations, and clinical course similar to previously described cases, we suspect that TMP-SMX may have triggered ARDS. Despite meeting criteria for extracorporeal membrane oxygenation cannulation, conservative management and lung recruitment with high-frequency percussive ventilation could avoid the latter.

Extracorporeal cardiopulmonary resuscitation for severe chloroquine intoxication in a child - a case report.

BACKGROUND: Chloroquine use has increased worldwide recently in the setting of experimental treatment for the novel coronavirus disease (Covid-19). Nevertheless, in case of chloroquine intoxication, it can be life threatening, with cardiac arrest, due to its cardiac toxicity. CASE PRESENTATION: This case study reports on a 14-years-old girl who presented in cardiac arrest after an uncommon suicide attempt by ingesting 3 g of chloroquine. After 66 min of cardio-pulmonary resuscitation (CPR), extracorporeal cardiopulmonary resuscitation (ECPR) was initiated, allowing cardiac function to recover. CONCLUSIONS: Chloroquine intoxication is a rare but serious condition due to its cardiac toxicity. Use of ECPR in this case of transient toxicity allowed a favorable evolution with little neurological impairment.

Severe Lactic Acidosis in a Critically Ill Child: Think About Thiamine! A Case Report.

In this article, we presented a teenager, in maintenance chemotherapy for leukemia, who was admitted for digestive symptoms related to a parasitic infection and required nutritional support with parenteral nutrition. After 6 weeks, his condition worsened with refractory shock of presumed septic origin, necessitating extracorporeal membrane oxygenation. Despite hemodynamic stabilization, his lactic acidosis worsened until thiamine supplementation was started. Lactate normalized within 12 hours. Thiamine is an essential coenzyme in aerobic glycolysis, and deficiency leads to lactate accumulation through anaerobic glycolysis. Thiamine deficiency is uncommon in the pediatric population. However, it should be considered in patients at risk of nutritional deficiencies with lactic acidosis of unknown origin.

Case Report: Colchicine Toxicokinetic Analysis in a Poisoned Child Requiring Extracorporeal Life Support.

Colchicine poisoning is associated with a poor prognosis, especially when leading to shock and multi-organ failure, and management is limited to supportive care, including multiple-dose activated charcoal. At therapeutic concentrations, colchicine elimination occurs mainly through hepatic metabolism and involves an enterohepatic circulation, with a small contribution of renal elimination (10-30%). Colchicine toxicokinetics is however rarely described, especially in children. We present the case of a 4-year-old patient who survived a severe iatrogenic colchicine intoxication with a dose of 0.5 mg/kg. She developed multi-organ failure and shock, but recovered after receiving aggressive resuscitation, including extracorporeal life support. Close monitoring of colchicine blood levels showed a plateau for 6 days, indicating impeded elimination resulting from liver failure. We observed no significant clearance from renal replacement therapy, nor activated charcoal, during this period. Extracorporeal life support may play a supportive role in the management of severe colchicine poisoning. However, extracorporeal techniques do not seem to improve colchicine elimination.

Point-of-care hemostasis in children with congenital heart disease, the POCHEMO study: baseline reference values of thromboelastometry and impedance aggregometry.

: Viscoelastic tests and impedance aggregometry allow coagulation evaluation at the bedside, but reference values are scarce in pediatrics. The aim of this study was to establish reference values of thromboelastometry and impedance aggregometry for this population and compare it between age groups. This prospective, single-center, observational study evaluates viscoelastic tests and impedance aggregometry in children with congenital heart disease. A total of 204 children were included with a median age of 3.6 years old. We provide references values for this population with median, percentile 2.5 and percentile 97.5. Infants demonstrate for extrinsic activity a shorter coagulation time (52 [49-55] vs. 56 [51-62] s, P = 0.007) and clot formation time (90 [71-118] vs. 113 [93-146] s, P < 0.0001) so as for intrinsic activity a shorter clot formation time (53 [44-69] vs. 75 [59-92] s, P < 0.0001). The maximal clot firmness was significantly stronger in infants for extrinsic (65 [61-69] vs. 59 [54-63] mm, P < 0.0001), intrinsic (68 [64-70] vs. 61 [57-65] mm, P < 0.0001), and fibrinogen (12 [9-16] vs. 10 [8-13] mm, P = 0.02) activities. Platelet aggregation was significantly higher in infants with an amplitude at 6 min of 28 [23-34] vs. 22 [15-27] Ω, P less than 0.0001, a maximum speed of 11 [9-13] vs. 7 [5-10] Ω/min, P less than 0.0001, and an area under the curve of 120 [92-135] vs. 86 [59-112] Ω min, P less than 0.0001. We provided the first reference values for impedance aggregometry and thromboelastometry in children with congenital heart disease. We showed that these infants tend to have accelerated coagulation and stronger clot firmness compared with older children, but this finding may have only minimal relevance when treating a bleeding child. Trial registration number: ClinicalTrials.gov (clinicaltrials.gov/ct2/show/NCT02387944).

CytoSorb® hemoadsorption and mechanical circulatory support in a newborn with refractory shock after congenital heart surgery.

Refractory cardiogenic and vasoplegic shock after congenital heart surgery is a threatening condition leading to high morbidity and mortality. Control of hemodynamic and inflammatory response is fundamental in medical strategy. We report the case of a newborn with cardiogenic and vasoplegic shock secondary to cardiopulmonary bypass for atrioseptostomy and prostaglandin treatment in the context of hypoplastic left heart syndrome, successfully treated with a combination of mechanical circulatory support and cytokine hemoadsorption column (CytoSorb®). Vasopressor support was weaned during the time of treatment without multiple organ failure occurrence. The use of CytoSorb® cartridge inserted in an extra-corporeal circuit even in a newborn is easy and feasible, as long as some precautions are considered. Routine monitoring of drugs levels is mandatory during the use of the cartridge and immediately after.

Leukemoid Reaction in Infant Pertussis: Is There a Place for Hydroxyurea? A Case Report.

A 73-days old infant of 34 weeks' gestation was hospitalized with a co-infection of respiratory syncytial virus (RSV) and Bordetella pertussis (BP). She required invasive ventilation for 9 days in the context of malignant pertussis with persistent hypoxemia and hypercapnia secondary to a leukemoid reaction. Despite an increase of white blood cell (WBC) count up to 70 G/L and ensuing pulmonary hypertension, no hemodynamic compromise occurred. Without clear indication for leukapheresis nor exchange transfusion, an off-label treatment with hydroxyurea was given for 5 days with gradual decrease of WBC count, without any complication and hospital discharge on day 29. To our knowledge, no effective therapy for malignant pertussis has been described in the literature and complications are frequent with leukoreduction procedures. We discuss an alternative to invasive procedures in young infants to fulfill the need to decrease rapidly leukocyte counts in a leukemoid reaction associated with Bordetella pertussis infection. To our knowledge, hydroxyurea has never been used in malignant pertussis but is a well-known medication for oncologic and hematologic diseases such as acute myeloid leukemia or sickle cell anemia. Its effects in this setting are not well understood but the positive outcome in our patient supports the need for further studies.