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opioid rotation

Ralf Baron, Leopold Eberhart, Kai-Uwe Kern, Stefan Regner, Roman Rolke, Christian Simanski, Thomas Tölle
Tapentadol prolonged release (PR) for the treatment of moderate to severe chronic pain combines 2 modes of action. These are μ-opioid receptor agonism and noradrenaline reuptake inhibition in a single molecule that allows higher analgesic potency through modulation of different pharmacological targets within the pain transmitting systems. At the same time, this can also serve as a clue for modulation of different pain-generating mechanisms according to nociceptive, neuropathic, or mixed pain conditions. Tapentadol PR has now been on the market for 5 years, with over 2...
September 9, 2016: Pain Practice: the Official Journal of World Institute of Pain
Kevin J DiSilvestro, Adam J Santoro, Fotios P Tjoumakaris, Eric A Levicoff, Kevin B Freedman
BACKGROUND: Patients often ask their doctors when they can safely return to driving after orthopaedic injuries and procedures, but the data regarding this topic are diverse and sometimes conflicting. Some studies provide observer-reported outcome measures, such as brake response time or simulators, to estimate when patients can safely resume driving after surgery, and patient survey data describing when patients report a return to driving, but they do not all agree. We performed a systematic review and quality appraisal for available data regarding when patients are safe to resume driving after common orthopaedic surgeries and injuries affecting the ability to drive...
August 4, 2016: Clinical Orthopaedics and related Research
Raphael Faria-Silva, Daniel Câmara de Rezende, Juarez Mundim Ribeiro, Telmo Heleno Gomes, Braulio Antônio Maciel Faria Mota Oliveira, Fábio Maciel R Pereira, Ildeu Afonso de Almeida Filho, Antônio Enéas Rangel de Carvalho Junior
BACKGROUND AND OBJECTIVES: Arthroscopy for shoulder disorders is associated with severe and difficult to control pain, postoperatively. The addition of clonidine to local anesthetics for peripheral nerve block has become increasingly common, thanks to the potential ability of this drug to reduce the mass of local anesthetic required and to prolonging analgesia postoperatively. The present study aimed to evaluate the success of brachial plexus block for arthroscopic rotator cuff surgery using local anesthetic with or without clonidine...
July 2016: Brazilian Journal of Anesthesiology
Kathleen Broglio, Joseph Pergolizzi, Maribeth Kowalski, Shau Yu Lynch, Ellie He, Warren Wen
OBJECTIVES: This post hoc analysis examined the effectiveness and safety of hydrocodone bitartrate (HYD) in patients with moderate-to-severe chronic pain who were previously taking extended-release morphine (morphine ER) for pain management. STUDY DESIGN: The primary analysis was an open-label, 12-month study. SETTING: The study was conducted in 88 sites in the United States. METHODS: The study was approved by an institutional review board...
June 18, 2016: Pain Practice: the Official Journal of World Institute of Pain
Josep Porta-Sales, Cristina Garzón-Rodríguez, Christian Villavicencio-Chávez, Silvia Llorens-Torromé, Jesús González-Barboteo
INTRODUCTION: Most clinical reports on methadone rotation describe outcomes in hospitalized patients. The few studies that have included outpatients are retrospective. The aim of this study was to assess the efficacy and safety of methadone as a second-line opioid in adult patients with advanced cancer after rotation in routine clinical practice at a palliative care outpatient clinic. PATIENTS AND METHODS: This was a prospective, open-label study of 145 patients whose treatment was rotated from other opioids to methadone...
August 2016: Oncologist
Marius von Knoch, Dirk Enders, Natasha I Schlothauer, Hans Michael Klinger, Iris Pigeot
INTRODUCTION: The expected duration of incapacity after arthroscopic shoulder surgery is an important factor for therapy planning. The aim of this study was to analyze the duration of sick leave after arthroscopic shoulder surgery in Germany and to identify factors associated with a longer duration of sick leave. We hypothesized that certain patient-related factors may be associated with a longer duration of sick leave. METHODS: Routine health care data of all patients insured by one German health insurance company who underwent inpatient arthroscopic shoulder surgery between 2010 and 2012 were included in the analysis of the duration of sick leave in this retrospective cohort study (level III evidence)...
June 2016: Archives of Orthopaedic and Trauma Surgery
Tariq Malik, Daniel Mass, Stephan Cohn
PURPOSE: To compare the analgesic efficacy of 3-day continuous interscalene brachial plexus block versus a single-shot block for arthroscopic rotator cuff repair. METHODS: Eighty-five patients scheduled for arthroscopic rotator cuff repair were randomly assigned to either the single-shot group (SSG) or continuous interscalene brachial block group (CG). Patients in the SSG received 2.5 mg/kg of 0.5% bupivacaine up to 25 mL; the CG received the same dose as a loading dose via catheter followed by an infusion of 0...
August 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
Carlos A Uquillas, Brian M Capogna, William H Rossy, Siddharth A Mahure, Andrew S Rokito
Arthroscopic rotator cuff repair (ARCR) can provide excellent clinical results for patients who fail to respond to conservative management of symptomatic rotator cuff tears. ARCR, however, can be associated with severe postoperative pain and discomfort that requires adequate analgesia. As ARCR continues to shift toward being performed as an outpatient procedure, it is incumbent on physicians and ambulatory surgical centers to provide appropriate pain relief with minimal side effects to ensure rapid recovery and safe discharge...
July 2016: Journal of Shoulder and Elbow Surgery
Andrew K Wong, Lauren Georgiades Keeney, Liting Chen, Rebekah Williams, Jiabin Liu, Nabil M Elkassabany
OBJECTIVE: This study aims to assess diaphragmatic excursion and measure pulmonary functions as measures of the degree to which the phrenic nerve is blocked after ISB with two different concentrations of ropivacaine: 0.2% and 0.1%. DESIGN: Randomized, double-blinded study. SETTING AND PATIENTS: Ambulatory surgical facility. SUBJECTS: Fifty patients undergoing shoulder arthroscopy for rotator cuff repair. METHODS: Patients were randomized to receive ultrasound-guided ISB with 20 mL of either 0...
April 13, 2016: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
Gabriela P Peirano, Guillermo P Mammana, Mariela S Bertolino, Tania Pastrana, Gloria F Vega, Jorgelina Russo, Gabriela Varela, Ernesto Vignaroli, Raúl Ruggiero, Arnaldo Armesto, Gabriela Camerano, Graciela Dran
PURPOSE: The use of methadone for cancer pain is limited by the need of expertise and close titration due to variable half-life. Yet, it is a helpful palliative strategy in low-resources countries given its long-acting effect at low cost and worth additional study. Our aim was to describe the prescription and outcomes of methadone as a first-line treatment for cancer pain in a tertiary palliative care unit (PCU) in Argentina. METHODS: Retrospective review of medical records of patients with moderate to severe cancer pain seen at the PCU in 1-year period, who initiated strong opioids at the first consultation...
August 2016: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
Elias Veizi, Melissa Tornero-Bold, Salim M Hayek
INTRODUCTION: Intrathecal therapy [IT] has become an important modality for treatment of intractable cancer and noncancer pain although adverse events limit its effectiveness. OBJECTIVE: The purpose of this case series was to report and discuss the lower limb edema from IT hydromorphone and morphine therapy and its resolution or nonrecurrence upon rotating the IT solution to fentanyl. METHODS: Case series. RESULTS: Five patients, 4 women and 1 man, 55 to 67 years old implanted with IT delivery device systems [IDDS] were treated with continuous infusion of hydromorphone [4 subjects] at 95 ± 40 mcg/24 hours and morphine [1 subject] at 0...
July 2016: Pain Practice: the Official Journal of World Institute of Pain
Agnieszka M Jurga, Ewelina Rojewska, Anna Piotrowska, Wioletta Makuch, Dominika Pilat, Barbara Przewlocka, Joanna Mika
Accumulating evidence indicates that microglial TLR2 and TLR4 play a significant role in nociception. Experiments were conducted to evaluate the contribution of TLR2 and TLR4 and their adaptor molecules to neuropathy and their ability to amplify opioid effectiveness. Behavioral tests (von Frey's and cold plate) and biochemical (Western blot and qRT-PCR) analysis of spinal cord and DRG tissue were conducted after chronic constriction injury (CCI) to the sciatic nerve. Repeated intrathecal administration of LPS-RS (TLR2 and TLR4 antagonist) and LPS-RS Ultrapure (TLR4 antagonist) attenuated allodynia and hyperalgesia...
2016: Neural Plasticity
Damian Bartuzi, Agnieszka A Kaczor, Dariusz Matosiuk
Allostery is a widespread mechanism that allows for precise protein tuning. Its underlying mechanisms are elusive, particularly when there are multiple allosteric sites at the protein. This concerns also G-protein-coupled receptors (GPCRs), which are targets for a vast part of currently used drugs. To address this issue, we performed molecular dynamics simulations of a GPCR-human μ opioid receptor (MOR) in a native-like environment, with full agonist (R)-methadone, Na(+) ions, and a positive modulator BMS986122 in various configurations...
March 28, 2016: Journal of Chemical Information and Modeling
Nobushige Yabe, Shinji Murai, Yoko Harada, Takahiro Yokose, Takamichi Yokoe, Ippei Oto, Takahisa Yoshikawa, Kenjiro Kitasato, Hirotomo Shimizu, Hiromitsu Jinno, Yuko Kitagawa
A 51-year-old woman had previously received treatment for breast cancer at another hospital but had refused early and aggressive treatment. Therefore, she was treated with symptomatic therapy. As her disease progressed, the patient wished to receive palliative care, and was transferred to a palliative care hospital. However, based on her general condition, it was determined that aggressive treatment should not be abandoned, and she was referred to our hospital for treatment. During her initial visit, the patient was found to have left breast cancer with chest wall invasion, right breast metastasis, multiple liver and lung metastases, left pleural effusion accompanied by pleural dissemination, and left upper limb edema...
November 2015: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Jianxin Cheng, Xianqiang Sun, Weihua Li, Guixia Liu, Yaoquan Tu, Yun Tang
The κ opioid receptor (κOR) is a member of G-protein-coupled receptors, and is considered as a promising drug target for treating neurological diseases. κOR selective 6'-GNTI was proved to be a G-protein biased agonist, whereas 5'-GNTI acts as an antagonist. To investigate the molecular mechanism of how these two ligands induce different behaviors of the receptor, we built two systems containing the 5'-GNTI-κOR complex and the 6'-GNTI-κOR complex, respectively, and performed molecular dynamics simulations of the two systems...
2016: Scientific Reports
Jeffrey Gudin, Jeffrey Fudin, Srinivas Nalamachu
Levorphanol is a potent opioid analgesic that was first approved for use in the United States in 1953. Levorphanol is approved for use in moderate to severe pain where an opioid analgesic is appropriate. Levorphanol has a wide range of activities including mu opioid agonism, delta agonism, kappa1 and kappa3 receptor agonism, N-methyl-d-aspartate receptor antagonism and reuptake inhibition of both norepinephrine and serotonin. This multimodal profile might prove effective for pain syndromes that are refractory to other opioid analgesics, such as central and neuropathic pain and opioid-induced hyperalgesia...
January 2016: Postgraduate Medicine
Lisa H Lam, Rosene D Pirrello, Joseph D Ma
Opioids are prescribed for cancer pain. Over the past decade, the annual increase in opioid prescriptions has been accompanied by an increase in opioid-associated deaths. Health care professionals must be proficient in proper dosing, titrating, and monitoring of opioid medications. With the numerous opioid medications and formulations available, an understanding of pharmacokinetic (PK) and pharmacodynamic (PD) concepts is necessary to appropriately individualize opioid-based cancer pain regimens. The purpose of this review is to highlight PK/PD concepts that are clinically relevant to the use of opioids...
July 2016: Journal of Clinical Pharmacology
A Perdreau, T Joudet
INTRODUCTION: Although arthroscopic rotator cuff repair is minimally invasive, there is still considerable postoperative pain, especially during the first 48 hours. The present study assessed the short-term efficacy and safety of multimodal analgesic (MMA) injection associated to corticosteroids in arthroscopic rotator cuff tear surgery. MATERIAL AND METHOD: A single-center prospective randomized study included 50 patients undergoing arthroscopic rotator cuff tear surgery...
December 2015: Orthopaedics & Traumatology, Surgery & Research: OTSR
Jayne Pawasauskas
Opioid rotation is a practice used when patients with chronic pain have insufficient analgesia, experience unwanted opioid-related adverse reactions, or other pharmacologic challenges with their current opioid. Methadone is an opioid with unique pharmacological properties, which render it clinically distinct from other opioids. The drug's potential clinical benefits in treating nociceptive and neuropathic pain are coupled with risks of serious, life-threatening adverse reactions. Its unique pharmacokinetic profile contributes added complexity; therefore, clinicians should be experienced with its dosing and monitoring...
September 2015: Journal of Opioid Management
Cynthia B Whitman, Mark W Reid, Corey Arnold, Haridarshan Patel, Lyann Ursos, Roee Sa'adon, Jonathan Pourmorady, Brennan M R Spiegel
Opioids cause gastrointestinal (GI) symptoms such as nausea, vomiting, pain, and (in 40 percent) constipation that diminish patients' quality of life. Outside traditional surveys, little is known about the opioid-induced constipation (OIC) patient experience and its impact on pain management. The purpose of this study was to use data from social media platforms to qualitatively examine patient beliefs about OIC and other prominent GI side effects, their impact on effective pain management and doctor-patient interaction...
September 2015: Journal of Opioid Management
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