58 research outputs found
The wrap-up: a unique forum to support pediatric residents when faced with the death of a child
Abstract Objective: The project intended to describe the format of the Wrap-up, a unique multidisciplinary guided debriefing following a child\u27s death. Specific feedback from pediatric residents was sought to assess the model.
Methods: The Wrap-ups were timely (within 48 hours of a death), consistent (conducted after each pediatric intensive care unit (PICU) death), multidisciplinary (all care providers were invited), and specifically conducted by someone trained in postdeath facilitation. The role of the conductor was focused on being inclusive, navigating the discussion, diffusing areas of conflict or angst, and managing the tone of the meeting. Resident feedback was obtained by a one-time (May 2010) anonymous internet-based survey, with both open-ended free-text questions and five-point Likert scale queries. Surveyed were all residents rotating though the PICU between 2007 and 2010. Open-ended free-text responses were analyzed using content analysis methods by combining recurrent themes and organizing by main components of the Wrap-up. Quantitative responses, via a five-point Likert scale, were averaged. Results: Between 2007 and 2010, there were 36 PICU deaths. The average age was nine years old. All deaths had an accompanying conductor-led Wrap-up occurring, on average, two days after the death. Sixty percent (27/45) of pediatric residents completed the survey. Their qualitative responses showed that the key components (timely, multidisciplinary, and specifically conducted) of the Wrap-ups were valuable. Quantitatively, they agreed or strongly agreed that the consistent Wrap-ups improved end-of-life care, teamwork, stress surrounding the death, and the ability to care for others.
Conclusion: The Wrap-up, a unique forum for debriefing after a pediatric death, was well-received by residents and assisted them with processing, understanding, and resolving their experience regarding the pediatric death. The Wrap-up was a valuable addition to residents\u27 experience and education in pediatric critical care medicine and can be replicated in other institutions
Association between length of storage of red blood cell units and outcome of critically ill children: a prospective observational study
INTRODUCTION: Transfusion is a common treatment in pediatric intensive care units (PICUs). Studies in adults suggest that prolonged storage of red blood cell units is associated with worse clinical outcome. No prospective study has been conducted in children. Our objectives were to assess the clinical impact of the length of storage of red blood cell units on clinical outcome of critically ill children.
METHODS: Prospective, observational study conducted in 30 North American centers, in consecutive patients aged \u3c18 years with a stay\u3eor= 48 hours in a PICU. The primary outcome measure was the incidence of multiple organ dysfunction syndrome after transfusion. The secondary outcomes were 28-day mortality and PICU length of stay. Odds ratios were adjusted for gender, age, number of organ dysfunctions at admission, total number of transfusions, and total dose of transfusion, using a multiple logistic regression model.
RESULTS: The median length of storage was 14 days in 296 patients with documented length of storage. For patients receiving blood stored \u3eor= 14 days, the adjusted odds ratio for an increased incidence of multiple organ dysfunction syndrome was 1.87 (95% CI 1.04;3.27, P = 0.03). There was also a significant difference in the total PICU length of stay (adjusted median difference +3.7 days, P \u3c 0.001) and no significant change in mortality.
CONCLUSIONS: In critically ill children, transfusion of red blood cell units stored for \u3eor= 14 days is independently associated with an increased occurrence of multiple organ dysfunction syndrome and prolonged PICU stay
Pediatric Critical Care Transfusion and Anemia Expertise Initiative
Introduction/Hypothesis: Despite evidence that a lower hemoglobin threshold is safe in hemodynamically stable children, studies have shown that transfusion thresholds in practice are higher, exposing these children to the morbidity and mortality associated with RBC transfusion. Therefore, there is increased need for evidence-based blood management strategies for clinicians caring for critically ill children.
Methods: The Pediatric Critical Care Transfusion and Anemia Expertise Initiative has brought together a group of 49 international experts in pediatric transfusion/critical care in collaboration with the Pediatric Critical Care Blood Research Network (BloodNet), and the Pediatric Acute Lung Injury and Sepsis Investigators (PALISI), to conduct a consensus conference series on pediatric critical care blood management. The methodology is modeled after that used in the Pediatric Acute Lung Injury and Consensus Conference and will create consensus statements via a structured process outlining existing data in RBC transfusion. Novel features include engagement with implementation science experts to enable consensus uptake.
Results: Two of the three expert meetings have been successfully conducted. Ten topics were identified and include recommendations on indications for RBC transfusion in critically ill children 1) based on hemoglobin triggers in the general population, 2) based on physiological triggers in the general population, 3) traumatic brain injury, 4) congenital heart disease, 5) hematologic/oncologic disease, 6) respiratory failure, 7) shock, 8) bleeding, 9) extracorporeal support, and 10) alternative processing. The systematic review was performed. The short text recommendations were generated, discussed at the second meeting and will undergo voting using the RAND UCLA Appropriateness Method to achieve consensus.
Conclusions: The TAXI consensus series is the first consensus series to convene international and multidisciplinary experts to create consensus statements on transfusion practices to improve outcomes and safety for critically ill children at risk for, or who require, RBC transfusions
The Wrap-Up: A Unique Forum To Support Pediatric Residents When Faced with the Death of a Child
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Highly Viscous States Affect the Browning of Atmospheric Organic Particulate Matter
Initially transparent organic particulate matter (PM) can become shades of light-absorbing brown via atmospheric particle-phase chemical reactions. The production of nitrogen-containing compounds is one important pathway for browning. Semisolid or solid physical states of organic PM might, however, have sufficiently slow diffusion of reactant molecules to inhibit browning reactions. Herein, organic PM of secondary organic material (SOM) derived from toluene, a common SOM precursor in anthropogenically affected environments, was exposed to ammonia at different values of relative humidity (RH). The production of light-absorbing organonitrogen imines from ammonia exposure, detected by mass spectrometry and ultraviolet–visible spectrophotometry, was kinetically inhibited for RH < 20% for exposure times of 6 min to 24 h. By comparison, from 20% to 60% RH organonitrogen production took place, implying ammonia uptake and reaction. Correspondingly, the absorption index k across 280 to 320 nm increased from 0.012 to 0.02, indicative of PM browning. The k value across 380 to 420 nm increased from 0.001 to 0.004. The observed RH-dependent behavior of ammonia uptake and browning was well captured by a model that considered the diffusivities of both the large organic molecules that made up the PM and the small reactant molecules taken up from the gas phase into the PM. Within the model, large-molecule diffusivity was calculated based on observed SOM viscosity and evaporation. Small-molecule diffusivity was represented by the water diffusivity measured by a quartz-crystal microbalance. The model showed that the browning reaction rates at RH < 60% could be controlled by the low diffusivity of the large organic molecules from the interior region of the particle to the reactive surface region. The results of this study have implications for accurate modeling of atmospheric brown carbon production and associated influences on energy balance
Organic Constituents on the Surfaces of Aerosol Particles from Southern Finland, Amazonia, and California Studied by Vibrational Sum Frequency Generation
Feasibility of preoperative chemotherapy for locally advanced, operable colon cancer: The pilot phase of a randomised controlled trial
Summary:
Background Preoperative (neoadjuvant) chemotherapy and radiotherapy are more eff ective than similar postoperative
treatment for oesophageal, gastric, and rectal cancers, perhaps because of more eff ective micrometastasis eradication
and reduced risk of incomplete excision and tumour cell shedding during surgery. The FOxTROT trial aims to
investigate the feasibility, safety, and effi cacy of preoperative chemotherapy for colon cancer.
Methods In the pilot stage of this randomised controlled trial, 150 patients with radiologically staged locally advanced
(T3 with ≥5 mm invasion beyond the muscularis propria or T4) tumours from 35 UK centres were randomly
assigned (2:1) to preoperative (three cycles of OxMdG [oxaliplatin 85 mg/m², l-folinic acid 175 mg, fl uorouracil
400 mg/m² bolus, then 2400 mg/m² by 46 h infusion] repeated at 2-weekly intervals followed by surgery and a
further nine cycles of OxMdG) or standard postoperative chemotherapy (12 cycles of OxMdG). Patients with KRAS
wild-type tumours were randomly assigned (1:1) to receive panitumumab (6 mg/kg; every 2 weeks with the fi rst
6 weeks of chemotherapy) or not. Treatment allocation was through a central randomisation service using a
minimised randomisation procedure including age, radiological T and N stage, site of tumour, and presence of
defunctioning colostomy as stratifi cation variables. Primary outcome measures of the pilot phase were feasibility,
safety, and tolerance of preoperative therapy, and accuracy of radiological staging. Analysis was by intention to treat.
This trial is registered, number ISRCTN 87163246.
Findings 96% (95 of 99) of patients started and 89% (85 of 95) completed preoperative chemotherapy with grade 3–4
gastrointestinal toxicity in 7% (seven of 94) of patients. All 99 tumours in the preoperative group were resected, with
no signifi cant diff erences in postoperative morbidity between the preoperative and control groups: 14% (14 of 99)
versus 12% (six of 51) had complications prolonging hospital stay (p=0·81). 98% (50 of 51) of postoperative
chemotherapy patients had T3 or more advanced tumours confi rmed at post-resection pathology compared with 91%
(90 of 99) of patients following preoperative chemotherapy (p=0·10). Preoperative therapy resulted in signifi cant
downstaging of TNM5 compared with the postoperative group (p=0·04), including two pathological complete
responses, apical node involvement (1% [one of 98] vs 20% [ten of 50], p<0·0001), resection margin involvement (4%
[ four of 99] vs 20% [ten of 50], p=0·002), and blinded centrally scored tumour regression grading: 31% (29 of 94) vs 2%
(one of 46) moderate or greater regression (p=0·0001).
Interpretation Preoperative chemotherapy for radiologically staged, locally advanced operable primary colon cancer is
feasible with acceptable toxicity and perioperative morbidity. Proceeding to the phase 3 trial, to establish whether the
encouraging pathological responses seen with preoperative therapy translates into improved long-term oncological
outcome, is appropriate
Molnupiravir plus usual care versus usual care alone as early treatment for adults with COVID-19 at increased risk of adverse outcomes (PANORAMIC): an open-label, platform-adaptive randomised controlled trial
Background:
The safety, effectiveness, and cost-effectiveness of molnupiravir, an oral antiviral medication for SARS-CoV-2, has not been established in vaccinated patients in the community at increased risk of morbidity and mortality from COVID-19. We aimed to establish whether the addition of molnupiravir to usual care reduced hospital admissions and deaths associated with COVID-19 in this population.
Methods:
PANORAMIC was a UK-based, national, multicentre, open-label, multigroup, prospective, platform adaptive randomised controlled trial. Eligible participants were aged 50 years or older—or aged 18 years or older with relevant comorbidities—and had been unwell with confirmed COVID-19 for 5 days or fewer in the community. Participants were randomly assigned (1:1) to receive 800 mg molnupiravir twice daily for 5 days plus usual care or usual care only. A secure, web-based system (Spinnaker) was used for randomisation, which was stratified by age (<50 years vs ≥50 years) and vaccination status (yes vs no). COVID-19 outcomes were tracked via a self-completed online daily diary for 28 days after randomisation. The primary outcome was all-cause hospitalisation or death within 28 days of randomisation, which was analysed using Bayesian models in all eligible participants who were randomly assigned. This trial is registered with ISRCTN, number 30448031.
Findings:
Between Dec 8, 2021, and April 27, 2022, 26 411 participants were randomly assigned, 12 821 to molnupiravir plus usual care, 12 962 to usual care alone, and 628 to other treatment groups (which will be reported separately). 12 529 participants from the molnupiravir plus usual care group, and 12 525 from the usual care group were included in the primary analysis population. The mean age of the population was 56·6 years (SD 12·6), and 24 290 (94%) of 25 708 participants had had at least three doses of a SARS-CoV-2 vaccine. Hospitalisations or deaths were recorded in 105 (1%) of 12 529 participants in the molnupiravir plus usual care group versus 98 (1%) of 12 525 in the usual care group (adjusted odds ratio 1·06 [95% Bayesian credible interval 0·81–1·41]; probability of superiority 0·33). There was no evidence of treatment interaction between subgroups. Serious adverse events were recorded for 50 (0·4%) of 12 774 participants in the molnupiravir plus usual care group and for 45 (0·3%) of 12 934 in the usual care group. None of these events were judged to be related to molnupiravir.
Interpretation:
Molnupiravir did not reduce the frequency of COVID-19-associated hospitalisations or death among high-risk vaccinated adults in the community
Molnupiravir plus usual care versus usual care alone as early treatment for adults with COVID-19 at increased risk of adverse outcomes (PANORAMIC): an open-label, platform-adaptive randomised controlled trial
BackgroundThe safety, effectiveness, and cost-effectiveness of molnupiravir, an oral antiviral medication for SARS-CoV-2, has not been established in vaccinated patients in the community at increased risk of morbidity and mortality from COVID-19. We aimed to establish whether the addition of molnupiravir to usual care reduced hospital admissions and deaths associated with COVID-19 in this population.MethodsPANORAMIC was a UK-based, national, multicentre, open-label, multigroup, prospective, platform adaptive randomised controlled trial. Eligible participants were aged 50 years or older—or aged 18 years or older with relevant comorbidities—and had been unwell with confirmed COVID-19 for 5 days or fewer in the community. Participants were randomly assigned (1:1) to receive 800 mg molnupiravir twice daily for 5 days plus usual care or usual care only. A secure, web-based system (Spinnaker) was used for randomisation, which was stratified by age (<50 years vs ≥50 years) and vaccination status (yes vs no). COVID-19 outcomes were tracked via a self-completed online daily diary for 28 days after randomisation. The primary outcome was all-cause hospitalisation or death within 28 days of randomisation, which was analysed using Bayesian models in all eligible participants who were randomly assigned. This trial is registered with ISRCTN, number 30448031.FindingsBetween Dec 8, 2021, and April 27, 2022, 26 411 participants were randomly assigned, 12 821 to molnupiravir plus usual care, 12 962 to usual care alone, and 628 to other treatment groups (which will be reported separately). 12 529 participants from the molnupiravir plus usual care group, and 12 525 from the usual care group were included in the primary analysis population. The mean age of the population was 56·6 years (SD 12·6), and 24 290 (94%) of 25 708 participants had had at least three doses of a SARS-CoV-2 vaccine. Hospitalisations or deaths were recorded in 105 (1%) of 12 529 participants in the molnupiravir plus usual care group versus 98 (1%) of 12 525 in the usual care group (adjusted odds ratio 1·06 [95% Bayesian credible interval 0·81–1·41]; probability of superiority 0·33). There was no evidence of treatment interaction between subgroups. Serious adverse events were recorded for 50 (0·4%) of 12 774 participants in the molnupiravir plus usual care group and for 45 (0·3%) of 12 934 in the usual care group. None of these events were judged to be related to molnupiravir.InterpretationMolnupiravir did not reduce the frequency of COVID-19-associated hospitalisations or death among high-risk vaccinated adults in the community
Transfusion practices in evolution, not revolution*
Comment on: Survey on stated transfusion practices in PICUs*. [Pediatr Crit Care Med. 2014
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