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58 papers 25 to 100 followers
By Xander Zuidema MD, pharmD, Anesthesiologist, intensivist, pain specialist
https://www.readbyqxmd.com/read/30238550/refill-procedures-of-intrathecal-drug-delivery-systems-with-a-recessed-fill-port-on-the-pump-surface-a-prospective-comparison-study-of-ultrasound-guided-vs-blind-refill-technique
#1
Paolo Maino, Sander M J van Kuijk, Roberto S G M Perez, Eva Koetsier
OBJECTIVES: Structural differences of implantable drug delivery systems (IDDSs) might have an impact on the efficiency of needle access to the reservoir fill port (RFP). The aim of this study was to assess the efficiency of RFP needle access with an ultrasound (US)-guided vs. a blind refill technique in IDDSs with a Recessed RFP (Recessed-RFP-IDDS). MATERIALS AND METHODS: The primary outcome was the number of attempts needed to enter the RFP with a needle comparing the US-guided technique vs...
September 20, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/30137539/intrathecal-therapy-for-chronic-pain-a-review-of-morphine-and-ziconotide-as-firstline-options
#2
Timothy R Deer, Jason E Pope, Michael C Hanes, Gladstone C McDowell
Objectives: To evaluate the evidence for morphine and ziconotide as firstline intrathecal (IT) analgesia agents for patients with chronic pain. Methods: Medline was searched (through July 2017) for "ziconotide" or "morphine" AND "intrathecal" AND "chronic pain," with results limited to studies in human populations. Results: The literature supports the use of morphine (based primarily on noncontrolled, prospective, and retrospective studies) and ziconotide (based on randomized controlled trials and prospective observational studies) as first-choice IT therapies...
August 22, 2018: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/30086115/morphine-effects-within-the-rodent-anterior-cingulate-cortex-and-rostral-ventromedial-medulla-reveal-separable-modulation-of-affective-and-sensory-qualities-of-acute-or-chronic-pain
#3
Lusine Gomtsian, Kirsty Bannister, Nathan Eyde, Dagoberto Robles, Anthony H Dickenson, Frank Porreca, Edita Navratilova
Modulation of pain may result from engagement of opioid receptors in multiple brain regions. Whether sensory and affective qualities of pain are differentially affected by brain opioid receptor circuits remains unclear. We previously reported that opioid actions within the rostral anterior cingulate cortex (ACC) produce selective modulation of affective qualities of neuropathic pain in rodents, but whether such effects may occur in other areas of the ACC is not known. Here, morphine was microinjected into 3 regions of the ACC or into the rostral ventromedial medulla (RVM), and pain behaviors in naive, sham, or spinal nerve ligated (SNL) rats were evaluated...
August 2, 2018: Pain
https://www.readbyqxmd.com/read/30092121/removal-of-intrathecal-catheters-used-in-drug-delivery-systems
#4
Leonardo A Frizon, Navin C Sabharwal, Tanmoy Maiti, Joshua Golubovsky, Francis May, Jianning Shao, Andre G Machado, Sean J Nagel
INTRODUCTION: Implanted intrathecal drug delivery systems (IDDS) are increasingly used in the treatment of spasticity and in patients with refractory pain. Literature discussing complications associated with intrathecal pump placement is widely available. However, reports of complications following the removal of chronically placed catheters are scarce. We reviewed our series of patients who had surgery to remove the intrathecal catheter. METHODS: Retrospective review was performed for all patients who underwent surgery to remove a catheter linked to an IDDS between 2010 and 2016...
August 9, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/30091274/antinociception-by-intrathecal-delivery-of-the-novel-non-opioid-1-amino-1-cyclobutanecarboxylic-acid
#5
T Fung, Y I Asiri, K Taheri, R Wall, S K W Schwarz, E Puil, B A MacLeod
BACKGROUND: Neuraxial opioids are widely used for intraoperative and postoperative analgesia. The risk of severe adverse effects including respiratory depression accompanies this analgesia, prompting the need for effective non-opioid alternatives. Systemic 1-amino-1-cyclobutanecarboxylic acid showed promise in preliminary studies to produce antinociception without observable toxicity. However, the effects of 1-amino-1-cyclobutanecarboxylic acid after intrathecal administration are unknown...
August 9, 2018: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/30004934/a-systematic-review-evaluating-neuraxial-morphine-and-diamorphine-associated-respiratory-depression-after-cesarean-delivery
#6
Nadir Sharawi, Brendan Carvalho, Ashraf S Habib, Lindsay Blake, Jill M Mhyre, Pervez Sultan
The prevalence of neuraxial opioid-induced clinically significant respiratory depression (CSRD) after cesarean delivery is unknown. We sought to review reported cases of author-reported respiratory depression (ARD) to calculate CSRD prevalence. A 6-database literature search was performed to identify ARD secondary to neuraxial morphine or diamorphine, in parturients undergoing cesarean delivery. "Highest" (definite and probable/possible) and "lowest" (definite) prevalences of CSRD were calculated...
July 11, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29978517/synergistic-antinociception-between-zc88-an-n-type-voltage-dependent-calcium-channel-blocker-and-ibuprofen-in-mouse-models-of-visceral-and-somatic-inflammatory-pain
#7
W-Z Zhou, T-Y Zhao, Z-Y Wang, G-Y Lu, S-Z Zhang, C Zhang, N Wu, J Li
BACKGROUND: A combination of analgesic agents with different mechanisms can induce additive or synergistic analgesia. The N-type voltage-dependent calcium channel (N-VDCC) is a novel therapeutic target for pain control. In addition to providing effective pain relief when used alone, N-VDCC blockers produce synergistic analgesia when used in combination with opiates. However, the interaction between N-VDCC blockers and nonsteroidal anti-inflammatory drugs (NSAIDs) remains unclear. METHODS: Using isobolographic analysis and composite additive curve analysis, the antinociceptive interaction between ZC88, a selective N-VDCC blocker and ibuprofen, a classical NSAID, was investigated in two mouse models of visceral and somatic inflammatory pain...
July 5, 2018: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29889241/long-term-outcomes-using-intrathecal-drug-delivery-systems-in-complex-regional-pain-syndrome
#8
Eric Z Herring, Leonardo A Frizon, Olivia Hogue, Jay U Mejia, Richard Rosenquist, Robert B Bolash, Andre G Machado, Sean J Nagel
Objective: Providing durable long-term pain control for patients with complex regional pain syndrome (CRPS) is challenging. A multidisciplinary approach focused on physical therapy is frequently prescribed, with opioids and invasive procedures reserved for those challenged by functional progression. In this study, we examined the long-term efficacy of intrathecal drug delivery systems (IDDS) in patients with CRPS at our institution. Methods: Patients with CRPS implanted with an IDDS between 2000 and 2013 who had four or more years of continuous follow-up were included in the analysis...
June 7, 2018: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29635804/do-the-potential-benefits-outweigh-the-risks-an-update-on-the-use-of-ziconotide-in-clinical-practice
#9
REVIEW
E Bäckryd
Ziconotide is a selective and potent blocker of N-type voltage-gated calcium channels. It was approved by the Food and Drug Administration in 2004 and by the European Medicines Agency in 2005 for the treatment of severe chronic pain in patients needing intrathecal analgesia (ITA). The aim of this paper is to provide a practitioner-oriented, educational, narrative, up-to-date review on the use of ziconotide in clinical pain medicine. Of special concern regarding safety is the partial incongruity between dosing statements in the Summary of Product Characteristics and novel low-dosage, slow uptitration recommendations...
August 2018: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29446171/retrospective-analysis-of-intrathecal-drug-delivery-outcomes-efficacy-and-risk-for-cancer-related-pain-at-a-high-volume-academic-medical-center
#10
Dawood Sayed, Forrest Monroe, Walter N Orr, Milind Phadnis, Talal W Khan, Edward Braun, Smith Manion, Andrea Nicol
OBJECTIVES: Cancer pain is common and difficult to treat, as conservative medical management fails in approximately 20% of patients for reasons such as intolerable side-effects or failure to control pain. Intrathecal drug delivery systems (IDDS), while underutilized, can be effective tools to treat intractable cancer pain. This study aims to determine the degree of pain relief, efficacy, and safety of patients who underwent IDDS implantation at a multidisciplinary pain clinic. MATERIALS AND METHODS: A retrospective review was conducted of patients with an intrathecal pain pump implanted for malignant pain...
February 14, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29016893/efficacy-safety-and-feasibility-of-the-morphine-microdose-method-in-community-based-clinics
#11
Denise M Wilkes, Susan J Orillosa, Erik C Hustak, Courtney G Williams, Gulshan R Doulatram, Daneshvari R Solanki, Eduardo A Garcia, Li-Yen M Huang
Objectives: The goal of this study was to assess the success of the morphine microdose method in a community pain clinic setting by monitoring follow-up frequency, dose escalation, and monotherapy/polytherapy ratio. The morphine microdose method involves a pretrial reduction or elimination of systemic opioids followed by a period of abstinence. Intrathecal (IT) morphine is then started at doses of less than 0.2 mg per day. Systemic opioid abstinence is then continued after pump implant and IT morphine monotherapy...
September 1, 2018: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28961351/intrathecal-therapeutics-device-design-access-methods-and-complication-mitigation
#12
REVIEW
Sean J Nagel, Chandan G Reddy, Leonardo A Frizon, Marshall T Holland, Andre G Machado, George T Gillies, Matthew A Howard
INTRODUCTION: The intrathecal space remains underutilized for diagnostic testing, invasive monitoring or as a pipeline for the delivery of neurological therapeutic agents and devices. The latter including drug infusions, implants for electrical modulation, and a means for maintaining the physiologic pressure column. The reasons for this are many but include unfamiliarity with the central nervous system and the historical risks that continue to overshadow the low complication rates in modern clinical series...
September 29, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28593641/the-polyanalgesic-consensus-conference-pacc-recommendations-on-intrathecal-drug-infusion-systems-best-practices-and-guidelines
#13
(no author information available yet)
No abstract text is available yet for this article.
June 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28560830/intrathecal-opioid-therapy-for-non-malignant-chronic-pain-a-long-term-perspective
#14
Barbara Kleinmann, Tilman Wolter
OBJECTIVES: Many patients with intrathecal opioid pumps do adhere to the therapy for many years but there is scarce knowledge about the long-term effects of intrathecal opioid therapy (IOT) of more than three years. We sought to assess the long-term efficacy and the presence of typical side-effects and complications of IOT. METHODS: A chart review was conducted on all patients with intrathecal opioid pumps that had been treated at our institution between 1.11.1990 and 31...
October 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28520955/effect-of-intrathecally-administered-ketamine-morphine-and-their-combination-added-to-bupivacaine-in-patients-undergoing-major-abdominal-cancer-surgery-a-randomized-double-blind-study
#15
Ahmad M Abd El-Rahman, Ashraf A Mohamed, Sahar A Mohamed, Mohamed A M Mostafa
Objective: Effective postoperative pain control reduces postoperative morbidity. In this study, we investigated the effects of intrathecal morphine, ketamine, and their combination with bupivacaine for postoperative analgesia in major abdominal cancer surgery. Study Design: Prospective, randomized, double-blind. Setting: Academic medical center. Patients and Methods: Ninety ASA I-III patients age 30 to 50 years were divided randomly into three groups: the morphine group (group M) received 10 mg of hyperbaric bupivacaine 0...
March 1, 2018: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28431427/total-spinal-anesthesia-failure-have-you-assessed-the-sensory-anesthesia-in-sacral-dermatomes
#16
Ronaldo Rodrigo de Sá Oliveira, Marília Pinheiro Módolo, Glênio Bitencourt Mizubuti, Anthony M H Ho, Guilherme Antonio Moreira de Barros, Leopoldo Muniz da Silva, Leandro Gobbo Braz, Norma Sueli Pinheiro Módolo, Andrew G Day, Rachel Phelan, Lais Helena Navarro E Lima, Eliana Marisa Ganem
Intrathecal local anesthetic maldistribution is a well-known cause of spinal anesthesia failure (SAF). This could potentially result in sensory blockade restricted to the sacral dermatomes. We sought to determine the overall incidence of SAF and the role of sacral dermatomes in differentiating between total and partial failures. Of the 3111 spinals prospectively examined, 194 (6.2%) were classified as failures. Of the 72 presumed total failures based on the initial assessment, evaluation of the sacral dermatomes revealed sensory blockade in 32 (44%; 95% confidence interval, 32...
May 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28431428/computational-and-in-vitro-experimental-investigation-of-intrathecal-drug-distribution-parametric-study-of-the-effect-of-injection-volume-cerebrospinal-fluid-pulsatility-and-drug-uptake
#17
COMPARATIVE STUDY
Kevin M Tangen, Roxanne Leval, Ankit I Mehta, Andreas A Linninger
BACKGROUND: Intrathecal drug delivery is an attractive option to circumvent the blood-brain barrier for pain management through its increased efficacy of pain relief, reduction in adverse side effects, and cost-effectiveness. Unfortunately, there are limited guidelines for physicians to choose infusion or drug pump settings to administer therapeutic doses to specific regions of the spine or the brain. Although empiric trialing of intrathecal drugs is critical to determine the sustained side effects, currently there is no inexpensive in vitro method to guide the selection of spinal drug delivery parameters...
May 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28393436/intrathecal-pump-refills-pocket-fills-and-symptoms-of-drug-overdose-a-prospective-observational-study-comparing-the-injected-drug-volume-vs-the-drug-volume-effectively-measured-inside-the-pump
#18
Paolo Maino, Roberto S G M Perez, Eva Koetsier
OBJECTIVES: One complication associated with the refill procedure of intrathecal drug delivery systems (IDDSs) include a "pocket fill," which is the inadvertent injection of the drug into the subcutaneous space surrounding the pump. The purpose of our study was to assess the mean volume discrepancy between the injected and the effective drug volume inside the IDDS reservoir after refills that did not lead to signs of overdose and to record at which volume discrepancy symptoms of overdose were noticed...
October 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28277328/isobolographic-analysis-of-drug-combinations-with-intrathecal-brl52537-%C3%AE%C2%BA-opioid-agonist-pregabalin-calcium-channel-modulator-af-353-p2x3-receptor-antagonist-and-a804598-p2x7-receptor-antagonist-in-neuropathic-rats
#19
Young-Hwan Jung, Yeo Ok Kim, Jung Hyun Han, Yong-Chul Kim, Myung Ha Yoon
BACKGROUND: Neuropathic pain should be treated with drug combinations exhibiting multiple analgesic mechanisms of action because the mechanism of neuropathic pain involves multiple physiological causes and is mediated by multiple pathways. In this study, we defined the pharmacological interaction of BRL52537 (κ-opioid agonist), pregabalin (calcium channel modulator), AF 353 (P2X3 receptor antagonist), and A804598 (P2X7 receptor antagonist). METHODS: Animal models of neuropathic pain were established by spinal nerve ligation (SNL) in male Sprague-Dawley rats, and responses to the mechanical stimulation using von Frey filaments were measured...
August 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/23121635/the-analgesic-efficacy-and-safety-of-neuraxial-magnesium-sulphate-a-quantitative-review
#20
REVIEW
E Albrecht, K R Kirkham, S S Liu, R Brull
Eighteen published trials have examined the use of neuraxial magnesium as a peri-operative adjunctive analgesic since 2002, with encouraging results. However, concurrent animal studies have reported clinical and histological evidence of neurological complications with similar weight-adjusted doses. The objectives of this quantitative systematic review were to assess both the analgesic efficacy and the safety of neuraxial magnesium. Eighteen trials comparing magnesium with placebo were identified. The time to first analgesic request increased by 11...
February 2013: Anaesthesia
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