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Cephalosporin Allergy: Current Understanding and Future Challenges.
Khan DA, Banerji A, Bernstein JA, Bilgicer B, Blumenthal K, Castells M, Ein D, Lang DM, Phillips E
(2019) J Allergy Clin Immunol Pract 7: 2105-2114
MeSH Terms: Anaphylaxis, Basophil Degranulation Test, Cephalosporins, Cross Reactions, Desensitization, Immunologic, Drug Eruptions, Drug Hypersensitivity, Humans, Perioperative Period, Pharmacogenomic Variants, Serum Sickness, Skin Tests, beta-Lactams
Show Abstract · Added March 30, 2020
Cephalosporins are commonly used antibiotics both in hospitalized patients and in outpatients. Hypersensitivity reactions to cephalosporins are becoming increasingly common with a wide range of immunopathologic mechanisms. Cephalosporins are one of the leading causes for perioperative anaphylaxis and severe cutaneous adverse reactions. Patients allergic to cephalosporins tend to tolerate cephalosporins with disparate R1 side chains but may react to other beta-lactams with common R1 side chains. Skin testing for cephalosporins has not been well validated but appears to have a good negative predictive value for cephalosporins with disparate R1 side chains. In vitro tests including basophil activation tests have lower sensitivity when compared with skin testing. Rapid drug desensitization procedures are safe and effective and have been used successfully for immediate and some nonimmediate cephalosporin reactions. Many gaps in knowledge still exist regarding cephalosporin hypersensitivity.
Copyright © 2019 American Academy of Allergy, Asthma & Immunology. Published by Elsevier Inc. All rights reserved.
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13 MeSH Terms
Preoperative opioid use and its association with perioperative opioid demand and postoperative opioid independence in patients undergoing spine surgery.
Armaghani SJ, Lee DS, Bible JE, Archer KR, Shau DN, Kay H, Zhang C, McGirt MJ, Devin CJ
(2014) Spine (Phila Pa 1976) 39: E1524-30
MeSH Terms: Adult, Aged, Analgesics, Opioid, Anxiety, Depression, Female, Humans, Male, Middle Aged, Opioid-Related Disorders, Orthopedic Procedures, Pain, Perioperative Period, Postoperative Complications, Prospective Studies, Spine
Show Abstract · Added February 19, 2015
STUDY DESIGN - Prospective cohort.
OBJECTIVE - To assess whether preoperative opioid use is associated with increased perioperative opioid demand and postoperative opioid independence in patients undergoing spine surgery.
SUMMARY OF BACKGROUND DATA - Previous work has demonstrated increased opioid requirements during the intraoperative and immediate postoperative period in patients with high levels of preoperative opioid use. Despite this, they remain a common agent class used for the management of pain in patients prior to spine surgery.
METHODS - A total of 583 patients were included. Self-reported daily opioid consumption was obtained preoperatively and converted into morphine equivalent amounts and opioid use was recorded at the 12-month postoperative time. Intraoperative and immediate postoperative opioid demand was calculated. Linear regression analyses for intraoperative and immediate postoperative opioid demand while logistic regression analyses for opioid independence at 12 months including relevant covariates such as depression and anxiety were performed.
RESULTS - The median preoperative morphine equivalent amount for the cohort was 8.75 mg, with 55% of patients reporting some degree of opioid use. Younger age, more invasive surgery, anxiety, and primary surgery were significantly associated with increased intraoperative opioid demand (P < 0.05). Younger age, anxiety, and greater preoperative opioid use were significantly associated with increased immediate postoperative opioid demand (P < 0.05). More invasive surgery, anxiety, revision surgery, and greater preoperative opioid use were significantly associated with a decreased incidence of opioid independence at 12 months postoperatively (P < 0.01).
CONCLUSION - Greater preoperative opioid use prior to undergoing spine surgery predicts increased immediate postoperative opioid demand and decreased incidence of postoperative opioid independence. Psychiatric diagnoses in those using preoperative opioids were predictors of continued opioid use at 12 months. Patients may benefit from preoperative counseling that emphasizes minimizing opioid use prior to undergoing spine surgery.
LEVEL OF EVIDENCE - 2.
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16 MeSH Terms
Exploring the link between pholcodine exposure and neuromuscular blocking agent anaphylaxis.
Brusch AM, Clarke RC, Platt PR, Phillips EJ
(2014) Br J Clin Pharmacol 78: 14-23
MeSH Terms: Allergens, Ammonium Compounds, Anaphylaxis, Codeine, Cross Reactions, Drug Hypersensitivity, Geography, Medical, Humans, Immunoglobulin E, Morpholines, Neuromuscular Blocking Agents, Norway, Perioperative Period
Show Abstract · Added March 30, 2020
Neuromuscular blocking agents (NMBAs) are the most commonly implicated drugs in IgE-mediated anaphylaxis during anaesthesia that can lead to perioperative morbidity and mortality. The rate of NMBA anaphylaxis shows marked geographical variation in patients who have had no known prior exposure to NMBAs, suggesting that there may be external or environmental factors that contribute to the underlying aetiology and pathophysiology of reactions. Substituted ammonium ions are shared among NMBAs and are therefore thought to be the main allergenic determinant of this class of drugs. Substituted ammonium ions are found in a wide variety of chemical structures, including prescription medications, over-the-counter medications and common household chemicals, such as the quaternary ammonium disinfectants. Epidemiological studies have shown parallels in the consumption of pholcodine, a nonprescription antitussive drug which contains a tertiary ammonium ion, and the incidence of NMBA anaphylaxis. This link has prompted the withdrawal of pholcodine in some countries, with an ensuing fall in the observed rate of NMBA anaphylaxis. While such observations are compelling in their suggestion of a relationship between pholcodine exposure and NMBA hypersensitivity, important questions remain regarding the mechanisms by which pholcodine is able to sensitize against NMBAs and whether there are other, as yet unidentified, agents that can elicit similar hypersensitivity reactions. This review aims to explore the evidence linking pholcodine exposure to NMBA hypersensitivity and discuss the implications for our understanding of the pathophysiology of these reactions.
© 2013 The British Pharmacological Society.
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Perioperative plasma F(2)-Isoprostane levels correlate with markers of impaired ventilation in infants with single-ventricle physiology undergoing stage 2 surgical palliation on the cardiopulmonary bypass.
Albers E, Donahue BS, Milne G, Saville BR, Wang W, Bichell D, McLaughlin B
(2012) Pediatr Cardiol 33: 562-8
MeSH Terms: Biomarkers, Cardiopulmonary Bypass, F2-Isoprostanes, Follow-Up Studies, Heart Bypass, Right, Heart Defects, Congenital, Heart Ventricles, Humans, Infant, Mass Spectrometry, Oxidative Stress, Palliative Care, Perioperative Period, Prognosis, Prospective Studies, Respiratory Function Tests, Respiratory Insufficiency
Show Abstract · Added March 26, 2014
Cardiopulmonary bypass (CPB) produces inflammation and oxidative stress, which contribute to postoperative complications after cardiac surgery. F(2)-Isoprostanes (F(2)-IsoPs) are products of lipid oxidative injury and represent the most accurate markers of oxidative stress. In adults undergoing cardiac surgery, CPB is associated with elevated IsoPs. The relationship between F(2)-IsoPs and perioperative end-organ function in infants with single-ventricle physiology, however, has not been well studied. This study prospectively enrolled 20 infants (ages 3-12 months) with univentricular physiology undergoing elective stage 2 palliation (bidirectional cavopulmonary anastomosis). Blood samples were collected before the surgical incision (T0), 30 min after initiation of CPB (T1), immediately after separation from CPB (T2), and 24 h postoperatively (T3). Plasma F(2)-IsoP levels were measured at each time point and correlated with indices of pulmonary function and other relevant clinical variables. Plasma F(2)-IsoPs increased significantly during surgery, with highest levels seen immediately after separation from CPB (p < 0.001). After separation from CPB, increased F(2)-IsoP was associated with lower arterial pH (ρ = -0.564; p = 0.012), higher partial pressure of carbon dioxide (PaCO(2); ρ = 0.633; p = 0.004), and decreased lung compliance (ρ = -0.783; p ≤ 0.001). After CPB, F(2)-IsoPs did not correlate with duration of CPB, arterial lactate, or immediate postoperative outcomes. In infants with single-ventricle physiology, CPB produces oxidative stress, as quantified by elevated F(2)-IsoP levels. Increased F(2)-IsoP levels correlated with impaired ventilation in the postoperative period. The extent to which F(2)-IsoPs and other bioactive products of lipid oxidative injury might predict or contribute to organ-specific stress warrants further investigation.
2 Communities
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17 MeSH Terms
Deep brain stimulation in early stage Parkinson's disease: operative experience from a prospective randomised clinical trial.
Kahn E, D'Haese PF, Dawant B, Allen L, Kao C, Charles PD, Konrad P
(2012) J Neurol Neurosurg Psychiatry 83: 164-70
MeSH Terms: Aged, Deep Brain Stimulation, Disease Progression, Electrodes, Implanted, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Neurologic Examination, Neurosurgical Procedures, Parkinson Disease, Perioperative Period, Postoperative Complications, Prospective Studies, Retrospective Studies, Speech Disorders, Stroke, Subthalamic Nucleus
Show Abstract · Added April 10, 2018
BACKGROUND - Recent evidence suggests that deep brain stimulation of the subthalamic nucleus (STN-DBS) may have a disease modifying effect in early Parkinson's disease (PD). A randomised, prospective study is underway to determine whether STN-DBS in early PD is safe and tolerable.
OBJECTIVES/METHODS - 15 of 30 early PD patients were randomised to receive STN-DBS implants in an institutional review board approved protocol. Operative technique, location of DBS leads and perioperative adverse events are reported. Active contact used for stimulation in these patients was compared with 47 advanced PD patients undergoing an identical procedure by the same surgeon.
RESULTS - 14 of the 15 patients did not sustain any long term (>3 months) complications from the surgery. One subject suffered a stroke resulting in mild cognitive changes and slight right arm and face weakness. The average optimal contact used in symptomatic treatment of early PD patients was: anterior -1.1±1.7 mm, lateral 10.7±1.7 mm and superior -3.3±2.5 mm (anterior and posterior commissure coordinates). This location is statistically no different (0.77 mm, p>0.05) than the optimal contact used in the treatment of 47 advanced PD patients.
CONCLUSIONS - The perioperative adverse events in this trial of subjects with early stage PD are comparable with those reported for STN-DBS in advanced PD. The active contact position used in early PD is not significantly different from that used in late stage disease. This is the first report of the operative experience from a randomised, surgical versus best medical therapy trial for the early treatment of PD.
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