Publications by authors named "Manoj Saxena"

Purpose: Hyperoxemia is common in patients resuscitated after out-of-hospital cardiac arrest (OHCA) admitted to the intensive care unit (ICU) and may increase the risk of mortality. However, the effect of hyperoxemia on functional outcome, specifically related to the timing of exposure to hyperoxemia, remains unclear.

Methods: The secondary analysis of the Target Temperature Management 2 (TTM-2) randomized trial.

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Gadolinium zirconate (GdZrO) belongs to the category of burnable absorber (BA) material in nuclear reactors. The high neutron-absorption cross sections of Gd isotopes (Gd and Gd) implement negative reactivity in the reactor core to control the excess reactivity of the fuel at the beginning of the fission cycle. The presence of other rare earth elements, which can come from the starting material and/or may be taken up during the synthesis steps, will affect the negative reactivity calculation.

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Objective: Critically ill patients suffer disrupted sleep. Hypnotic medications may improve sleep; however, local epidemiological data regarding the amount of nocturnal time awake and the use of such medications is needed.

Design: Point prevalence study.

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Article Synopsis
  • Airway management is vital in treating out-of-hospital cardiac arrest (OHCA), focusing on whether tracheal intubation (TI) or supraglottic airway devices (SGA) lead to better patient outcomes.
  • A secondary analysis of the TTM2 trial included 1702 adult OHCA patients and found that most (71.6%) received TI, while 28.4% were managed with SGA.
  • Results indicated that the type of airway management did not significantly affect outcomes like ventilator-free days, neurological status, or mortality rates after 26 days.
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Article Synopsis
  • The study aimed to assess public perceptions of fairness in intensive care triage methods during a pandemic, focusing on chronic comorbidity factors.
  • A survey conducted with 2000 registered voters evaluated the fairness of triaging based on medical conditions, long-term survival, function, and frailty, alongside preferences for vulnerable individuals and frontline workers.
  • Results revealed that while most respondents found comorbidity-based triage methods fair, a notable minority viewed it as unfair, particularly regarding preferential treatment for vulnerable groups; however, triage for healthcare workers was generally seen as fair.
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Background: Sedation is routinely administered to critically ill patients to alleviate anxiety, discomfort, and patient-ventilator asynchrony. However, it must be balanced against risks such as delirium and prolonged intensive care stays. This study aimed to investigate the effects of different levels of sedation in critically ill adults.

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  • International guidelines suggest keeping body temperature below 37.8 °C for unconscious patients after out-of-hospital cardiac arrest (OHCA), but targeting 33 °C may yield better results for patients with a nonshockable rhythm.
  • The study aimed to determine if inducing hypothermia at 33 °C leads to higher survival rates and better functional outcomes compared to maintaining normal body temperature (normothermia).
  • Data was gathered from two clinical trials involving unconscious OHCA patients with nonshockable rhythms, comparing those treated with hypothermia versus normothermia for a minimum of 24 hours, analyzing various factors influencing outcomes.*
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To characterise the assessment and management of delirium in patients admitted to intensive care units (ICUs) in Australia and New Zealand. We conducted a multicentre observational point prevalence study across 44 adult Australian and New Zealand ICUs. Data were extracted for all patients in the ICU in terms of assessment and treatment of delirium.

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The Plasma-Lyte 148 versus Saline (PLUS) study is a prospective, multicentre, parallel-group, concealed, blinded, randomised controlled trial comparing the effect of Plasma-Lyte 148 versus 0.9% sodium chloride (saline) for fluid resuscitation and other fluid therapy on 90-day mortality among critically ill adults requiring fluid resuscitation. The original target for recruitment was 8800 participants, which was reduced to 5000 participants following the onset of the coronavirus disease 2019 (COVID-19) pandemic in 2020.

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To describe pain assessment and analgesic management practices in patients in intensive care units (ICUs) in Australia and New Zealand. Prospective, observational, multicentre, single-day point prevalence study conducted in Australian and New Zealand ICUs. Observational data were recorded for all adult patients admitted to an ICU without a neurological, neurosurgical or postoperative cardiac diagnosis.

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The extensive use of lanthanide elements in the medical, electrical, agricultural, and nuclear fields has increased their contamination in the environment. The detrimental effect of lanthanides on human health can be reduced or eliminated by their fast determination in the concerned specimen. For this purpose, an offline conjugation of the cloud point extraction (CPE) process with total reflection X-ray fluorescence (TXRF) spectrometry was done.

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Article Synopsis
  • The TTM2 trial found no significant difference in mortality or poor functional outcomes between targeted hypothermia and targeted normothermia 6 months after out-of-hospital cardiac arrest (OHCA).
  • A detailed analysis aimed to assess brain dysfunction and cognitive function in survivors, focusing on societal participation after OHCA.
  • This study involved 1861 comatose adults across 61 hospitals in 14 countries, with follow-up conducted by masked assessors showing no differences in functional outcomes between the two temperature control methods.
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Purpose: Guidelines recommend targeting mean arterial pressure (MAP) > 65 mmHg in patients after cardiac arrest (CA). Recent trials have studied the effects of targeting a higher MAP as compared to a lower MAP after CA. We performed a systematic review and individual patient data meta-analysis to investigate the effects of higher versus lower MAP targets on patient outcome.

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Tetraphenylethane-1,2-diylbis(phosphoramidate) in conjugation with a room temperature ionic liquid in chloroform medium is reported for the first time in the liquid-liquid extraction of thorium (Th). The extracted Th(IV) is collected as a white solid in the organic medium, thereby facilitating its easy separation. A high distribution ratio (D) of (12.

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Introduction: It is standard of care to provide sedation to critically ill patients to reduce anxiety, discomfort and promote tolerance of mechanical ventilation. Given that sedatives can have differing effects based on a variety of patient and pharmacological characteristics, treatment approaches are largely based on targeting the level of sedation. The benefits of differing levels of sedation must be balanced against potential adverse effects including haemodynamic instability, causing delirium, delaying awakening and prolonging the time of mechanical ventilation and intensive care stay.

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Article Synopsis
  • Targeted temperature management (TTM) after cardiac arrest was studied to see if a lower temperature (33 °C) versus normal temperature (normothermia) leads to better outcomes, particularly based on how quickly the target temperature is reached.
  • In a post-hoc analysis of the TTM-2 trial involving 1592 patients, there was no significant difference in mortality or functional outcomes between those who achieved hypothermia fastest and those who remained at normothermia.
  • The study concluded that the time taken to reach hypothermia does not significantly affect the effectiveness of TTM of 33 °C compared to maintaining normothermia and treating fever.
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BACKGROUND: The evidence for temperature control for comatose survivors of cardiac arrest is inconclusive. Controversy exists as to whether the effects of hypothermia differ per the circumstances of the cardiac arrest or patient characteristics. METHODS: An individual patient data meta-analysis of the Targeted Temperature Management at 33°C versus 36°C after Cardiac Arrest (TTM) and Hypothermia versus Normothermia after Out-of-Hospital Cardiac Arrest (TTM2) trials was conducted.

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Curcumin, a natural polyphenol derived from the spice turmeric (), contains antioxidant, anti-inflammatory, and anti-cancer properties. However, curcumin bioavailability is inherently low due to poor water solubility and rapid metabolism. Here, we further refined for use curcumin incorporated into "biomimetic" nanolipoprotein particles (cNLPs) consisting of a phospholipid bilayer surrounded by apolipoprotein A1 and amphipathic polymer scaffolding moieties.

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Background: Randomised clinical trials with a factorial design may assess the effects of multiple interventions in the same population. Factorial trials are carried out under the assumption that the trial interventions have no interactions on outcomes. Here, we present a protocol for a simulation study investigating the consequences of different levels of interactions between the trial interventions on outcomes for the future 2×2×2 factorial designed randomised clinical Sedation, TEmperature, and Pressure after Cardiac Arrest and REsuscitation (STEPCARE) trial in comatose patients after out-of-hospital cardiac arrest.

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Background: Optimal oxygen targets in patients resuscitated after cardiac arrest are uncertain. The primary aim of this study was to describe the values of partial pressure of oxygen values (PaO) and the episodes of hypoxemia and hyperoxemia occurring within the first 72 h of mechanical ventilation in out of hospital cardiac arrest (OHCA) patients. The secondary aim was to evaluate the association of PaO with patients' outcome.

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Background: The cuff leak test (CLT) is used to assess laryngeal edema prior to extubation. There is limited evidence for its diagnostic accuracy and conflicting guidelines surrounding its use in critically ill patients who do not have risk factors for laryngeal edema. The primary study aim was to describe intensivists' beliefs, attitudes, and practice regarding the use of the CLT.

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Purpose: The optimal ventilatory settings in patients after cardiac arrest and their association with outcome remain unclear. The aim of this study was to describe the ventilatory settings applied in the first 72 h of mechanical ventilation in patients after out-of-hospital cardiac arrest and their association with 6-month outcomes.

Methods: Preplanned sub-analysis of the Target Temperature Management-2 trial.

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Objective: This manuscript describes the novel approach to developing a toolkit to support meaningful consumer involvement in clinical trials in Australia to help guide others in considering the development of similar resources.The toolkit aims to support greater consumer involvement in shaping how clinical research is prioritised, designed and conducted. Type of program or service: A working group of researchers, research organisations and consumers was established to co-develop the Consumer Involvement and Engagement Toolkit (the 'Toolkit'), a digital resource to guide researchers and organisations regarding consumer involvement in clinical trials.

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