Publications by authors named "Thomas Hickey"

Buprenorphine was synthesized in the 1960s as a result of a search for a safe and effective opioid analgesic. Present formulations of buprenorphine are approved for the treatment of both acute and chronic pain. Its long duration of action, high affinity, and partial agonism at the µ-opioid receptor have established it as a mainstay treatment for opioid use disorder (OUD).

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Background/importance: Opioids continue to play a key role in managing acute postoperative pain, but their use contributes to adverse outcomes. Buprenorphine may offer effective analgesia with a superior safety profile.

Objective: To compare the efficacy and safety of buprenorphine with other opioids for acute postoperative pain management in adults.

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Background And Objectives: Cataract surgery is common and low-risk. Preoperative evaluation and preoperative testing have not been shown to improve patient outcomes but do increase cost. Our process improvement aimed to reduce unnecessary preoperative primary care evaluation for cataract surgery.

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The present study summarizes two growing seasons (2020-2021) of microclimate characterization and vegetable crop growth in an agrivoltaics system in northern Colorado, USA. The replicated experiment evaluated three module transparency types (opaque silicon [0 % transparent], bifacial silicon [∼5 % transparent], and semi-transparent cadmium telluride [40 % transparent]) plus a full sun control, and four vegetable crop species (summer squash, peppers, tomatoes, and lettuce). Air temperature under the modules in July was approximately 0.

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Pain management in patients on chronic opioid therapy is a common clinical challenge. The phenomena of opioid-induced hyperalgesia and tolerance are important contributors to that challenge. There are multiple strategies described to wean opioid doses and/or transition patients off opioids altogether.

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  • SARS-CoV-2 vaccination leads to changes in antibody levels and characteristics, which can influence protection against infection.
  • After the initial vaccine series, IgG levels decrease over time while antibody avidity (binding strength) increases; however, this trend is reversed after a third booster dose, which boosts both IgG levels and avidity.
  • Comparison between the two mRNA vaccines shows that one (BNT162b2) results in higher antibody avidity than the other (mRNA-1273) six months after the third dose.
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  • This study compares the immune responses of two mRNA vaccines (mRNA-1273 and BNT162b2) against SARS-CoV-2 to natural infection by measuring anti-Spike antibody levels and avidity in serum samples from different age groups.
  • Results showed that both vaccines produced higher antibody levels and avidity than natural infection, with mRNA-1273 demonstrating superior antibody levels four months post-vaccination.
  • Additionally, mRNA-1273 induced greater avidity than BNT162b2 at one month, though this was only significantly maintained in the younger age group by four months.
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The magnitude and pace of global climate change demand ambitious and effective implementation of nationally determined contributions (NDCs). Nature-based solutions present an efficient approach to achieving mitigation, adaptation and resilience goals. Yet few nations have quantified the diverse benefits of nature-based solutions to evaluate and select ecosystem targets for their NDCs.

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Background: Perioperative management of formulations of buprenorphine used for the treatment of opioid use disorder and/or pain are common clinical challenges. Care strategies are increasingly recommending continuation of buprenorphine while administering multimodal analgesia including full agonist opioids. While this "simultaneous strategy" is relatively simple for the shorter-acting sublingual buprenorphine formulation, best practices are needed for the increasingly prescribed extended-release buprenorphine (ER-buprenorphine).

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Severe pulmonary hypertension (PH) is associated with poor operative outcomes; however, guidance for perioperative management of this population is lacking. Mechanical ventilation has known deleterious effects on right ventricular preload and cardiac output. Meanwhile, pneumoperitoneum results in further cardiopulmonary insults.

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Perioperative management of buprenorphine is increasingly characterized by continuation of buprenorphine throughout the perioperative period while coadministering full agonist opioids for analgesia. Although this "simultaneous strategy" is commonly used for the shorter-acting sublingual buprenorphine formulations, there is little to guide management of the extended-release formulations of buprenorphine. Here we report the perioperative experience of an individual maintained on extended-release buprenorphine who successfully underwent major surgeries utilizing a strategy of performing the surgeries at the time of the next scheduled dose.

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Toll-like receptor (TLR) agonists can act as immune stimulants alone or as part of alum or oil formulations. Humoral and cellular immune responses were utilized to assess quantitative and qualitative immune response enhancement by TLR agonists using recombinant protective antigen (rPA) of B. anthracis as a model antigen.

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Buprenorphine formulations (including buprenorphine/naloxone) are effective treatments of pain and opioid use disorder (OUD). Historically, perioperative management of patients prescribed buprenorphine involved abstinence from buprenorphine sufficient to allow for unrestricted mu-opioid receptor availability to full agonist opioid (FAO) treatment. Evidence is mounting that a multimodal analgesic strategy, including simultaneous administration of buprenorphine and FAO, nonopioid adjuncts such as acetaminophen and nonsteroidal anti-inflammatory drugs, and regional anesthesia, is a safe and effective perioperative strategy for the patient prescribed long-term buprenorphine treatment of OUD.

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Background: Treating acute pain among persons with opioid use disorder (OUD) on opioid agonist therapy (OAT) is complex, and the therapeutic benefits of opioids remain unclear when weighted against their abuse potential and respiratory depressant effects.

Methods: We conducted a systematic review of experimental pain studies examining opioid-induced analgesia among persons with OUD on OAT. We searched multiple databases from inception to July 30, 2021.

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Influenza hemagglutinin (HA) is considered a major protective antigen of seasonal influenza vaccine but antigenic drift of HA necessitates annual immunizations using new circulating HA versions. Low variation found within conserved non-HA influenza virus (INFV) antigens may maintain protection with less frequent immunizations. Conserved antigens of influenza A virus (INFV A) that can generate cross protection against multiple INFV strains were evaluated in BALB/c mice using modified Vaccinia virus Ankara (MVA)-vectored vaccines that expressed INFV A antigens hemagglutinin (HA), matrix protein 1 (M1), nucleoprotein (NP), matrix protein 2 (M2), repeats of the external portion of M2 (M2e) or as tandem repeats (METR), and M2e with transmembrane region and cytoplasmic loop (M2eTML).

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Article Synopsis
  • Lung cancer (LC) survivors are at an increased risk for developing second primary lung cancer (SPLC), but there's no current clinical tool to predict who is at high risk for this.
  • A prediction model was created using data from a large study of 6,325 ever-smokers, showing high accuracy and usefulness in assessing 10-year SPLC risk after an initial lung cancer diagnosis.
  • The model was validated using additional data sources and proved effective, indicating it can help identify high-risk LC patients for better monitoring and intervention strategies.
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Introduction: Lung cancer survivors are at high risk of developing a second primary lung cancer (SPLC). However, SPLC risk factors have not been established and the impact of tobacco smoking remains controversial. We examined the risk factors for SPLC across multiple epidemiologic cohorts and evaluated the impact of smoking cessation on reducing SPLC risk.

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Background: Colonoscopy follow-up recommendations depend on the presence or absence of polyps, and if found, their number, size, and histology. Patients may be responsible for conveying results between primary and specialty care or providing medical information to family members; thus, accurate reporting is critical. This analysis assessed the accuracy of self-reported colonoscopy findings.

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A 99-year-old veteran, his family, and an anesthesiologist practice shared decision making to ensure patient-centered care before a procedure.

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Introduction: The patient population seen in our nation's Veterans Affairs Healthcare system is increasingly female and an alarming percentage of our veterans, male and female alike, report a history of military sexual trauma (MST), which is associated with an increased burden of morbidities including post-traumatic stress disorder (PTSD) and substance abuse. The experience of surgery can produce symptoms of PTSD in a clinically significant percentage of patients. This article describes the challenges of achieving a patient-centered perioperative care plan in the case of a female veteran who suffers from PTSD as a result of MST.

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Code status discussions (CSDs) clarify patient preferences for cardiopulmonary resuscitation in the event of cardiac or respiratory arrest. CSDs are a key component of perioperative care, particularly at the end of life, and must be both patient-centered and shared. Physicians at all levels of training are insufficiently trained in and inappropriately perform CSD; this may be particularly true of perioperative physicians.

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Article Synopsis
  • The study investigates whether non-Hispanic blacks are at a higher risk for developing distal colorectal neoplasia compared to non-Hispanic whites after negative flexible sigmoidoscopy results.
  • Although blacks had a higher rate of abnormal follow-up FSG results, they were less likely to pursue further diagnostic colonoscopy.
  • The findings suggest that there were no significant differences in the risk of developing distal adenomas between the two racial groups after a follow-up of 3-5 years.
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