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Memtsoudis SG, Cozowicz C, Bekeris J, Bekere D, Liu J, Soffin EM, Mariano ER, Johnson RL, Go G, Hargett MJ, Lee BH, Wendel P, Brouillette M, Kim SJ, Baaklini L, Wetmore DS, Hong G, Goto R, Jivanelli B, Athanassoglou V, Argyra E, Barrington MJ, Borgeat A, De Andres J, El-Boghdadly K, Elkassabany NM, Gautier P, Gerner P, Gonzalez Della Valle A, Goytizolo E, Guo Z, Hogg R, Kehlet H, Kessler P, Kopp S, Lavand'homme P, Macfarlane A, MacLean C, Mantilla C, McIsaac D, McLawhorn A, Neal JM, Parks M, Parvizi J, Peng P, Pichler L, Poeran J, Poultsides L, Schwenk ES, Sites BD, Stundner O, Sun EC, Viscusi E, Votta-Velis EG, Wu CL, YaDeau J, Sharrock NE. Peripheral nerve block anesthesia/analgesia for patients undergoing primary hip and knee arthroplasty: recommendations from the International Consensus on Anesthesia-Related Outcomes after Surgery (ICAROS) group based on a systematic review and meta-analysis of current literature. Reg Anesth Pain Med 2021; 46:971-985. [PMID: 34433647 DOI: 10.1136/rapm-2021-102750] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 08/09/2021] [Indexed: 11/04/2022]
Abstract
BACKGROUND Evidence-based international expert consensus regarding the impact of peripheral nerve block (PNB) use in total hip/knee arthroplasty surgery. METHODS A systematic review and meta-analysis: randomized controlled and observational studies investigating the impact of PNB utilization on major complications, including mortality, cardiac, pulmonary, gastrointestinal, renal, thromboembolic, neurologic, infectious, and bleeding complications.Medline, PubMed, Embase, and Cochrane Library including Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, NHS Economic Evaluation Database, were queried from 1946 to August 4, 2020.The Grading of Recommendations Assessment, Development, and Evaluation approach was used to assess evidence quality and for the development of recommendations. RESULTS Analysis of 122 studies revealed that PNB use (compared with no use) was associated with lower ORs for (OR with 95% CIs) for numerous complications (total hip and knee arthroplasties (THA/TKA), respectively): cognitive dysfunction (OR 0.30, 95% CI 0.17 to 0.53/OR 0.52, 95% CI 0.34 to 0.80), respiratory failure (OR 0.36, 95% CI 0.17 to 0.74/OR 0.37, 95% CI 0.18 to 0.75), cardiac complications (OR 0.84, 95% CI 0.76 to 0.93/OR 0.83, 95% CI 0.79 to 0.86), surgical site infections (OR 0.55 95% CI 0.47 to 0.64/OR 0.86 95% CI 0.80 to 0.91), thromboembolism (OR 0.74, 95% CI 0.58 to 0.96/OR 0.90, 95% CI 0.84 to 0.96) and blood transfusion (OR 0.84, 95% CI 0.83 to 0.86/OR 0.91, 95% CI 0.90 to 0.92). CONCLUSIONS Based on the current body of evidence, the consensus group recommends PNB use in THA/TKA for improved outcomes. RECOMMENDATION PNB use is recommended for patients undergoing THA and TKA except when contraindications preclude their use. Furthermore, the alignment of provider skills and practice location resources needs to be ensured. Evidence level: moderate; recommendation: strong.
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Affiliation(s)
- Stavros G Memtsoudis
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA .,Department of Anesthesiology, Critical Care and Pain Management, Weill Cornell Medical College, New York, New York, USA
| | - Crispiana Cozowicz
- Department of Anesthesiology, Perioperative Medicine and Intensive Care Medicine, Paracelsus Medical Private University, Salzburg, Austria
| | - Janis Bekeris
- Department of Anesthesiology, Perioperative Medicine and Intensive Care Medicine, Paracelsus Medical Private University, Salzburg, Austria
| | - Dace Bekere
- Department of Anesthesiology, Perioperative Medicine and Intensive Care Medicine, Paracelsus Medical Private University, Salzburg, Austria
| | - Jiabin Liu
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA.,Department of Anesthesiology, Critical Care and Pain Management, Weill Cornell Medical College, New York, New York, USA
| | - Ellen M Soffin
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA.,Department of Anesthesiology, Critical Care and Pain Management, Weill Cornell Medical College, New York, New York, USA
| | - Edward R Mariano
- Anesthesiology and Perioperative Care Service, VA Palo Alto Health Care System, Palo Alto, California, USA.,Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Rebecca L Johnson
- Department of Anesthesiology & Perioperative Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - George Go
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA
| | - Mary J Hargett
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA
| | - Bradley H Lee
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA.,Department of Anesthesiology, Critical Care and Pain Management, Weill Cornell Medical College, New York, New York, USA
| | - Pamela Wendel
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA.,Department of Anesthesiology, Critical Care and Pain Management, Weill Cornell Medical College, New York, New York, USA
| | - Mark Brouillette
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA.,Department of Anesthesiology, Critical Care and Pain Management, Weill Cornell Medical College, New York, New York, USA
| | - Sang Jo Kim
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA.,Department of Anesthesiology, Critical Care and Pain Management, Weill Cornell Medical College, New York, New York, USA
| | - Lila Baaklini
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA.,Department of Anesthesiology, Critical Care and Pain Management, Weill Cornell Medical College, New York, New York, USA
| | - Douglas S Wetmore
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA.,Department of Anesthesiology, Critical Care and Pain Management, Weill Cornell Medical College, New York, New York, USA
| | - Genewoo Hong
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA.,Department of Anesthesiology, Critical Care and Pain Management, Weill Cornell Medical College, New York, New York, USA
| | - Rie Goto
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA
| | - Bridget Jivanelli
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA
| | - Vassilis Athanassoglou
- Nuffield Department of Anaesthetics, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Eriphili Argyra
- Faculty of Medicine, Aretaieion University Hospital, Athens, Greece
| | - Michael John Barrington
- Department of Anesthesiology & Perioperative Medicine, Oregon Health & Science University, Portland, Oregon, USA
| | - Alain Borgeat
- Anesthesiology, Balgrist University Hospital, Zurich, Switzerland
| | - Jose De Andres
- Anesthesia, Critical Care and Multidisciplinary Pain Management Department, Valencia University General Hospital, Valencia, Spain.,Anesthesia Unit, Surgical Specialties Department, School of Medicine, University of Valencia, Valencia, Spain
| | | | - Nabil M Elkassabany
- Anesthesiology and Critical Care, University Of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Philippe Gautier
- Department of Anesthesiology and Resuscitation, Clinique Sainte-Anne Saint-Remi, Brussels, Belgium
| | - Peter Gerner
- Department of Anesthesiology, Perioperative Medicine and Intensive Care Medicine, Paracelsus Medical Private University, Salzburg, Austria
| | - Alejandro Gonzalez Della Valle
- Department of Orthopedic Surgery, Hospital for Special Surgery, New York, New York, USA.,Department of Orthopedic Surgery, Weill Cornell Medical College, New York, New York, USA
| | - Enrique Goytizolo
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA.,Department of Anesthesiology, Critical Care and Pain Management, Weill Cornell Medical College, New York, New York, USA
| | - Zhenggang Guo
- Department of Anesthesiology, Peking Universtiy Shougang Hospital, Beijing, China
| | - Rosemary Hogg
- Department of Anaesthesia, Belfast Health and Social Care Trust, Belfast, UK
| | - Henrik Kehlet
- Department of Clinical Medicine, Rigshosp, Copenhagen, Denmark
| | - Paul Kessler
- Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Frankfurt am Main, Hessen, Germany
| | - Sandra Kopp
- Department of Anesthesiology & Perioperative Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Alan Macfarlane
- School of Medicine, Dentistry & Nursing, Glasgow Royal Infirmary and Stobhill Ambulatory Hospital, Glasgow, UK
| | - Catherine MacLean
- Center for the Advancement of Value in Musculoskeletal Care, Hospital for Special Surgery, New York, New York, USA.,Center for the Advancement of Value in Musculoskeletal Care, Weill Cornell Medical College, New York, New York, USA
| | - Carlos Mantilla
- Department of Anesthesiology & Perioperative Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Dan McIsaac
- Department of Anesthesiology and Pain Medicine, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Alexander McLawhorn
- Department of Orthopedic Surgery, Hospital for Special Surgery, New York, New York, USA.,Department of Orthopedic Surgery, Weill Cornell Medical College, New York, New York, USA
| | - Joseph M Neal
- Anesthesiology, Virginia Mason Medical Center, Seattle, Washington, USA.,Benaroya Research Institute, Virginia Mason Medical Center, Seattle, Washington, USA
| | - Michael Parks
- Orthopedic Surgery, Hospital for Special Surgery, New York, New York, USA
| | - Javad Parvizi
- Orthopedic Surgery, Rothman Orthopaedic Institute, Philadelphia, Pennsylvania, USA
| | - Philip Peng
- Anesthesia, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - Lukas Pichler
- Department of Anesthesiology, Perioperative Medicine and Intensive Care Medicine, Paracelsus Medical Private University, Salzburg, Austria
| | - Jashvant Poeran
- Orthopaedics/Population Health Science & Policy, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Lazaros Poultsides
- Department of Orthopaedic Surgery, New York Langone Orthopaedic Hospital, New York, New York, USA
| | - Eric S Schwenk
- Department of Anesthesiology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Brian D Sites
- Anesthesiology, Dartmouth Medical School, Hanover, New Hampshire, USA
| | - Ottokar Stundner
- Department of Anesthesiology, Perioperative Medicine and Intensive Care Medicine, Paracelsus Medical Private University, Salzburg, Austria.,Department of Anesthesiology and Intensive Care, Medical University of Innsbruck, Innsbruck, Tyrol, Austria
| | - Eric C Sun
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Eugene Viscusi
- Department of Anesthesiology, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Effrossyni Gina Votta-Velis
- Department of Anesthesiology, University of Illinois Hospital and Health Sciences System, Chicago, Illinois, USA
| | - Christopher L Wu
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA.,Department of Anesthesiology, Critical Care and Pain Management, Weill Cornell Medical College, New York, New York, USA
| | - Jacques YaDeau
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA.,Department of Anesthesiology, Critical Care and Pain Management, Weill Cornell Medical College, New York, New York, USA
| | - Nigel E Sharrock
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA.,Department of Anesthesiology, Critical Care and Pain Management, Weill Cornell Medical College, New York, New York, USA
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Keck J, Krahl A, Müller AM, Förster N, Gerner P. Pädiatrische eosinophile Gastroenteropathie. Monatsschr Kinderheilkd 2020. [DOI: 10.1007/s00112-020-01031-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Memtsoudis SG, Cozowicz C, Bekeris J, Bekere D, Liu J, Soffin EM, Mariano ER, Johnson RL, Hargett MJ, Lee BH, Wendel P, Brouillette M, Go G, Kim SJ, Baaklini L, Wetmore D, Hong G, Goto R, Jivanelli B, Argyra E, Barrington MJ, Borgeat A, De Andres J, Elkassabany NM, Gautier PE, Gerner P, Gonzalez Della Valle A, Goytizolo E, Kessler P, Kopp SL, Lavand'Homme P, MacLean CH, Mantilla CB, MacIsaac D, McLawhorn A, Neal JM, Parks M, Parvizi J, Pichler L, Poeran J, Poultsides LA, Sites BD, Stundner O, Sun EC, Viscusi ER, Votta-Velis EG, Wu CL, Ya Deau JT, Sharrock NE. Anaesthetic care of patients undergoing primary hip and knee arthroplasty: consensus recommendations from the International Consensus on Anaesthesia-Related Outcomes after Surgery group (ICAROS) based on a systematic review and meta-analysis. Br J Anaesth 2019; 123:269-287. [PMID: 31351590 DOI: 10.1016/j.bja.2019.05.042] [Citation(s) in RCA: 149] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 05/02/2019] [Accepted: 05/20/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Evidence-based international expert consensus regarding anaesthetic practice in hip/knee arthroplasty surgery is needed for improved healthcare outcomes. METHODS The International Consensus on Anaesthesia-Related Outcomes after Surgery group (ICAROS) systematic review, including randomised controlled and observational studies comparing neuraxial to general anaesthesia regarding major complications, including mortality, cardiac, pulmonary, gastrointestinal, renal, genitourinary, thromboembolic, neurological, infectious, and bleeding complications. Medline, PubMed, Embase, and Cochrane Library including Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, NHS Economic Evaluation Database, from 1946 to May 17, 2018 were queried. Meta-analysis and Grading of Recommendations Assessment, Development and Evaluation approach was utilised to assess evidence quality and to develop recommendations. RESULTS The analysis of 94 studies revealed that neuraxial anaesthesia was associated with lower odds or no difference in virtually all reported complications, except for urinary retention. Excerpt of complications for neuraxial vs general anaesthesia in hip/knee arthroplasty, respectively: mortality odds ratio (OR): 0.67, 95% confidence interval (CI): 0.57-0.80/OR: 0.83, 95% CI: 0.60-1.15; pulmonary OR: 0.65, 95% CI: 0.52-0.80/OR: 0.69, 95% CI: 0.58-0.81; acute renal failure OR: 0.69, 95% CI: 0.59-0.81/OR: 0.73, 95% CI: 0.65-0.82; deep venous thrombosis OR: 0.52, 95% CI: 0.42-0.65/OR: 0.77, 95% CI: 0.64-0.93; infections OR: 0.73, 95% CI: 0.67-0.79/OR: 0.80, 95% CI: 0.76-0.85; and blood transfusion OR: 0.85, 95% CI: 0.82-0.89/OR: 0.84, 95% CI: 0.82-0.87. CONCLUSIONS Recommendation: primary neuraxial anaesthesia is preferred for knee arthroplasty, given several positive postoperative outcome benefits; evidence level: low, weak recommendation. RECOMMENDATION neuraxial anaesthesia is recommended for hip arthroplasty given associated outcome benefits; evidence level: moderate-low, strong recommendation. Based on current evidence, the consensus group recommends neuraxial over general anaesthesia for hip/knee arthroplasty. TRIAL REGISTRY NUMBER PROSPERO CRD42018099935.
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MESH Headings
- Anesthesia, Epidural/adverse effects
- Anesthesia, Epidural/mortality
- Anesthesia, General/adverse effects
- Anesthesia, General/mortality
- Anesthesia, Spinal/adverse effects
- Anesthesia, Spinal/mortality
- Arthroplasty, Replacement, Hip/methods
- Arthroplasty, Replacement, Hip/mortality
- Arthroplasty, Replacement, Knee/methods
- Arthroplasty, Replacement, Knee/mortality
- Evidence-Based Medicine/methods
- Humans
- Postoperative Complications/mortality
- Randomized Controlled Trials as Topic
- Treatment Outcome
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Affiliation(s)
- Stavros G Memtsoudis
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA; Department of Anesthesiology, Perioperative Medicine and Intensive Care Medicine, Paracelsus Medical University, Salzburg, Austria.
| | - Crispiana Cozowicz
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA; Department of Anesthesiology, Perioperative Medicine and Intensive Care Medicine, Paracelsus Medical University, Salzburg, Austria
| | - Janis Bekeris
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA; Department of Anesthesiology, Perioperative Medicine and Intensive Care Medicine, Paracelsus Medical University, Salzburg, Austria
| | - Dace Bekere
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Jiabin Liu
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Ellen M Soffin
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Edward R Mariano
- Department of Anesthesia, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Rebecca L Johnson
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Mary J Hargett
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Bradley H Lee
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Pamela Wendel
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Mark Brouillette
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - George Go
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Sang J Kim
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Lila Baaklini
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Douglas Wetmore
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Genewoo Hong
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Rie Goto
- Kim Barrett Memorial Library, Hospital for Special Surgery, Weill Cornell Medical College, New York, NY, USA
| | - Bridget Jivanelli
- Kim Barrett Memorial Library, Hospital for Special Surgery, Weill Cornell Medical College, New York, NY, USA
| | - Eriphyli Argyra
- Department of Anaesthesiology, Pain and Palliative Care, National and Kapodistrian University of Athens, Athens, Greece
| | - Michael J Barrington
- Department of Medicine & Radiology, The University of Melbourne, Victoria, Australia
| | - Alain Borgeat
- Department of Anesthesiology and Intensive Care Medicine, Universität Zürich, Zurich, Switzerland
| | - Jose De Andres
- Anesthesia Unit- Surgical Specialties Department, Valencia University Medical School, Spain; Anesthesia, Critical Care, and Pain Management Department, General University Hospital, Valencia, Spain
| | - Nabil M Elkassabany
- Department of Anesthesiology and Critical Care, University of Pennsylvania, Philadelphia, PA, USA
| | - Philippe E Gautier
- Department of Anesthesiology, Clinique Ste-Anne St-Remi, Anderlecht, Belgium
| | - Peter Gerner
- Department of Anesthesiology, Perioperative Medicine and Intensive Care Medicine, Paracelsus Medical University, Salzburg, Austria
| | - Alejandro Gonzalez Della Valle
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Enrique Goytizolo
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Paul Kessler
- Department of Anesthesiology, Intensive Care and Pain Medicine, Orthopedic University Hospital, Frankfurt am Main, Germany
| | - Sandra L Kopp
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Catherine H MacLean
- Value Management Office, Hospital for Special Surgery, Weill Cornell Medical College, New York, NY, USA
| | - Carlos B Mantilla
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Daniel MacIsaac
- Department of Anesthesiology and Pain Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Alexander McLawhorn
- Department of Orthopedic Surgery, Hip and Knee Replacement, Hospital for Special Surgery, Weill Cornell Medical College, New York, NY, USA
| | - Joseph M Neal
- Department of Anesthesiology, Virginia Mason Medical Center, Seattle, WA, USA
| | - Michael Parks
- Department of Orthopedic Surgery, Hip and Knee Replacement, Hospital for Special Surgery, Weill Cornell Medical College, New York, NY, USA
| | | | - Lukas Pichler
- Department of Anesthesiology, Perioperative Medicine and Intensive Care Medicine, Paracelsus Medical University, Salzburg, Austria
| | - Jashvant Poeran
- Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, Institute for Healthcare Delivery Science, New York, NY, USA
| | - Lazaros A Poultsides
- Department of Orthopaedic Surgery, New York Langone Orthopaedic Hospital, New York, NY, USA
| | - Brian D Sites
- Department of Anesthesiology, Dartmouth College Geisel School of Medicine, Hanover, NH, USA
| | - Otto Stundner
- Department of Anesthesiology, Perioperative Medicine and Intensive Care Medicine, Paracelsus Medical University, Salzburg, Austria
| | - Eric C Sun
- Department of Anesthesia, Stanford University School of Medicine, Stanford, CA, USA
| | - Eugene R Viscusi
- Department of Anesthesiology, Pain Center, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, USA
| | - Effrossyni G Votta-Velis
- Department of Anesthesiology, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA
| | - Christopher L Wu
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Jacques T Ya Deau
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Nigel E Sharrock
- Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery and Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
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Gerner P, Speckmann C, Klemann C, Tegtmeyer D, Baumann U. Immundefekte als Ursache von chronisch-entzündlichen Erkrankungen des Darmes. ACTA ACUST UNITED AC 2018. [DOI: 10.1055/s-0037-1616266] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
ZusammenfassungChronisch-entzündliche Darmerkrankungen (CED), mit ihren beiden prominentesten Vertretern M. Crohn und Colitis ulcerosa, zeichnen sich durch eine multifaktorielle Ätiologie mit komplexer Regulation zwischen polygenetischer Grundlage und Umwelteinflüssen aus. In den letzten Jahren wurden zahlreiche, jedoch insgesamt seltene, monogenetische Erkrankungen identifiziert, die sich mit einem CED-Phänotyp manifestieren können. Das frühe Erkennen und Anpassen der Therapien dieser heterogenen, immunologischen Erkrankungen sind von hoher Relevanz für den weiteren Verlauf der Erkrankung. In diesem Review diskutieren wir charakteristische Befunde und Umstände, die an das Vorliegen einer monogenetischen Ursache für die intestinale Inflammation denken lassen: Hinweisend können ein früher Krankheitsbeginn, ein Versagen klassischer Therapien, elterliche Konsanguinität, eine auffallende Infektanfälligkeit oder CED-untypische Begleiterkrankungen, Pathologien oder Blutwerte sein. Wir beschreiben ausgewählte Erkrankungen anhand von Fallbeispielen und zeigen auf, wie diese Erkrankungen durch die Kombination von anamnestischen Angaben und klinischen, zellulären sowie genetischen Untersuchungen diagnostiziert werden können. Hierfür schlagen wir eine gestufte, diagnostische Strategie vor, um diesen außergewöhnlichen Erkrankungen als Differenzialdiagnose einer CED nachzugehen.
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Stundner O, Meissnitzer M, Brummett CM, Moser S, Forstner R, Koköfer A, Danninger T, Gerner P, Kirchmair L, Fritsch G. Comparison of tissue distribution, phrenic nerve involvement, and epidural spread in standard- vs low-volume ultrasound-guided interscalene plexus block using contrast magnetic resonance imaging: a randomized, controlled trial. Br J Anaesth 2016; 116:405-12. [PMID: 26865133 DOI: 10.1093/bja/aev550] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Ultrasound guidance allows for the use of much lower volumes of local anaesthetics for nerve blocks, which may be associated with less aberrant spread and fewer complications. This randomized, controlled study used contrast magnetic resonance imaging to view the differential-volume local anaesthetic distribution, and compared analgesic efficacy and respiratory impairment. METHODS Thirty patients undergoing shoulder surgery were randomized to receive ultrasound-guided interscalene block by a single, blinded operator with injection of ropivacaine 0.75% (either 20 or 5 ml) plus the contrast dye gadopentetate dimeglumine, followed by magnetic resonance imaging. The primary outcome was epidural spread. Secondary outcomes were central non-epidural spread, contralateral epidural spread, spread to the phrenic nerve, spirometry, ultrasound investigation of the diaphragm, block duration, pain scores during the first 24 h, time to first analgesic consumption, and total analgesic consumption. RESULTS All blocks provided fast onset and adequate intra- and postoperative analgesia, with no significant differences in pain scores at any time point. Epidural spread occurred in two subjects of each group (13.3%); however, spread to the intervertebral foramen and phrenic nerve and extensive i.m. local anaesthetic deposition were significantly more frequent in the 20 ml group. Diaphragmatic paralysis occurred twice as frequently (n=8 vs 4), and changes from baseline peak respiratory flow rate were larger [Δ=-2.66 (1.99 sd) vs -1.69 (2.0 sd) l min(-1)] in the 20 ml group. CONCLUSIONS This study demonstrates that interscalene block is associated with epidural spread irrespective of injection volume; however, less central (foraminal) and aberrant spread after low-volume injection may be associated with a more favourable risk profile. CLINICAL TRIAL REGISTRATION This study was registered with the European Medicines Agency (Eudra-CT number 2013-004219-36) and with the US National Institutes' of Health registry and results base, clinicaltrials.gov (identifier NCT02175069).
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Affiliation(s)
- O Stundner
- Department of Anaesthesiology, Perioperative Medicine and Intensive Care Medicine
| | - M Meissnitzer
- Department of Radiology, Paracelsus Medical University, Müllner Hauptstrasse 48, 5020 Salzburg, Austria
| | - C M Brummett
- Department of Anaesthesiology, University of Michigan, 1500 E Medical Center Drive, Ann Arbor, MI, USA
| | - S Moser
- Department of Anaesthesiology, University of Michigan, 1500 E Medical Center Drive, Ann Arbor, MI, USA
| | - R Forstner
- Department of Radiology, Paracelsus Medical University, Müllner Hauptstrasse 48, 5020 Salzburg, Austria
| | - A Koköfer
- Department of Anaesthesiology, Perioperative Medicine and Intensive Care Medicine
| | - T Danninger
- Department of Anaesthesiology, Perioperative Medicine and Intensive Care Medicine
| | - P Gerner
- Department of Anaesthesiology, Perioperative Medicine and Intensive Care Medicine
| | - L Kirchmair
- Department of Anaesthesiology and Intensive Care Medicine, Trauma Hospital Salzburg, Doktor-Franz-Rehrl-Platz 5, 5010 Salzburg, Austria
| | - G Fritsch
- Department of Anaesthesiology, Perioperative Medicine and Intensive Care Medicine
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6
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Danninger T, Stundner O, Rasul R, Brummett CM, Mazumdar M, Gerner P, Memtsoudis SG. Factors associated with hospital admission after rotator cuff repair: the role of peripheral nerve blockade. J Clin Anesth 2015; 27:566-73. [DOI: 10.1016/j.jclinane.2015.07.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 01/30/2015] [Accepted: 07/13/2015] [Indexed: 10/23/2022]
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7
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Abstract
A patient with an endobronchial tumor and critical airway obstruction developed hypoxia and hypercarbia and, subsequently, cardiac arrest during a palliative laser core-out excision. The differential diagnosis included tension pneumothorax, as well as airway obstruction due to swelling of residual tumor or to blood clots. In this case, empiric needle decompression could have had deleterious consequences. Immediate bedside lung ultrasonography provided real-time information leading to the stabilization of the patient. This case provides compelling motivation for anesthesiologists to acquire this easily learned skill.
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Affiliation(s)
- Thomas Edrich
- From the Departments of *Anesthesiology, Perioperative Medicine and General Intensive Care Medicine and †Surgery, Salzburg General Hospital, Salzburg, Austria; ‡Paracelsus Medical University, Salzburg, Austria; and §Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
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8
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Opperer M, Gerner P, Memtsoudis SG. Additives to local anesthetics for peripheral nerve blocks or local anesthesia: a review of the literature. Pain Manag 2015; 5:117-28. [DOI: 10.2217/pmt.15.2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
SUMMARY A multitude of studies have focused on individual additives to local anesthetics and their effect on quality, onset, duration, spread and selectivity, as well as the potential toxic effects of their use. This review aims to give a broad overview of the current evidence in this developing field, based on beneficial and adverse effects of these drugs. We discuss the limitations of the available data and hope to convey implications and future perspectives for clinicians and researchers alike.
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Affiliation(s)
- Mathias Opperer
- Department of Anesthesiology, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
- Department of Anesthesiology, Paracelsus Medical University, Müllnerhauptstraße 48, 5020 Salzburg, Austria
| | - Peter Gerner
- Department of Anesthesiology, Paracelsus Medical University, Müllnerhauptstraße 48, 5020 Salzburg, Austria
| | - Stavros G Memtsoudis
- Department of Anesthesiology, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
- Department of Anesthesiology, Paracelsus Medical University, Müllnerhauptstraße 48, 5020 Salzburg, Austria
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9
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Lirk P, Verhamme C, Boeckh R, Stevens MF, ten Hoope W, Gerner P, Blumenthal S, de Girolami U, van Schaik IN, Hollmann MW, Picardi S. Effects of early and late diabetic neuropathy on sciatic nerve block duration and neurotoxicity in Zucker diabetic fatty rats. Br J Anaesth 2014; 114:319-26. [PMID: 25145353 DOI: 10.1093/bja/aeu270] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The neuropathy of type II diabetes mellitus (DM) is increasing in prevalence worldwide. We aimed to test the hypothesis that in a rodent model of type II DM, neuropathy would lead to increased neurotoxicity and block duration after lidocaine-induced sciatic nerve block when compared with control animals. METHODS Experiments were carried out in Zucker diabetic fatty rats aged 10 weeks (early diabetic) or 18 weeks (late diabetic, with or without insulin 3 units per day), and age-matched healthy controls. Left sciatic nerve block was performed using 0.2 ml lidocaine 2%. Nerve conduction velocity (NCV) and F-wave latency were used to quantify nerve function before, and 1 week after nerve block, after which sciatic nerves were used for neurohistopathology. RESULTS Early diabetic animals did not show increased signs of nerve dysfunction after nerve block. In late diabetic animals without insulin vs control animals, NCV was 34.8 (5.0) vs 41.1 (4.1) ms s(-1) (P<0.01), and F-wave latency was 7.7 (0.5) vs 7.0 (0.2) ms (P<0.01), respectively. Motor nerve block duration was prolonged in late diabetic animals, but neurotoxicity was not. Late diabetic animals receiving insulin showed intermediate results. CONCLUSIONS In a rodent type II DM model, nerves have increased sensitivity for short-acting local anaesthetics without adjuvants in vivo, as evidenced by prolonged block duration. This sensitivity appears to increase with the progression of neuropathy. Our results do not support the hypothesis that neuropathy due to type II DM increases the risk of nerve injury after nerve block.
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Affiliation(s)
- P Lirk
- Department of Anaesthesiology and Laboratory of Experimental Anaesthesiology and Intensive Care (LEICA), University of Amsterdam, Amsterdam, The Netherlands
| | - C Verhamme
- Department of Neurology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - R Boeckh
- Department of Anesthesiology, University of Heidelberg, Heidelberg, Germany
| | - M F Stevens
- Department of Anaesthesiology and Laboratory of Experimental Anaesthesiology and Intensive Care (LEICA), University of Amsterdam, Amsterdam, The Netherlands
| | - W ten Hoope
- Department of Anaesthesiology and Laboratory of Experimental Anaesthesiology and Intensive Care (LEICA), University of Amsterdam, Amsterdam, The Netherlands
| | - P Gerner
- Department of Anesthesiology, Perioperative and Critical Care Medicine, Paracelsus Medical University, Salzburg, Austria
| | - S Blumenthal
- Department of Anaesthesiology and Intensive Care Medicine, Triemli Hospital, Zurich, Switzerland
| | - U de Girolami
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - I N van Schaik
- Department of Neurology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - M W Hollmann
- Department of Anaesthesiology and Laboratory of Experimental Anaesthesiology and Intensive Care (LEICA), University of Amsterdam, Amsterdam, The Netherlands
| | - S Picardi
- Department of Anaesthesiology and Laboratory of Experimental Anaesthesiology and Intensive Care (LEICA), University of Amsterdam, Amsterdam, The Netherlands Department of Anesthesiology, University of Heidelberg, Heidelberg, Germany
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Stundner O, Chiu YL, Sun X, Ramachandran SK, Gerner P, Vougioukas V, Mazumdar M, Memtsoudis SG. Sleep apnoea adversely affects the outcome in patients who undergo posterior lumbar fusion: a population-based study. Bone Joint J 2014; 96-B:242-8. [PMID: 24493191 DOI: 10.1302/0301-620x.96b2.31842] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Despite the increasing prevalence of sleep apnoea, little information is available regarding its impact on the peri-operative outcome of patients undergoing posterior lumbar fusion. Using a national database, patients who underwent lumbar fusion between 2006 and 2010 were identified, sub-grouped by diagnosis of sleep apnoea and compared. The impact of sleep apnoea on various outcome measures was assessed by regression analysis. The records of 84,655 patients undergoing posterior lumbar fusion were identified and 7.28% (n = 6163) also had a diagnostic code for sleep apnoea. Compared with patients without sleep apnoea, these patients were older, more frequently female, had a higher comorbidity burden and higher rates of peri-operative complications, post-operative mechanical ventilation, blood product transfusion and intensive care. Patients with sleep apnoea also had longer and more costly periods of hospitalisation. In the regression analysis, sleep apnoea emerged as an independent risk factor for the development of peri-operative complications (odds ratio (OR) 1.50, confidence interval (CI) 1.38;1.62), blood product transfusions (OR 1.12, CI 1.03;1.23), mechanical ventilation (OR 6.97, CI 5.90;8.23), critical care services (OR 1.86, CI 1.71;2.03), prolonged hospitalisation and increased cost (OR 1.28, CI 1.19;1.37; OR 1.10, CI 1.03;1.18). Patients with sleep apnoea who undergo posterior lumbar fusion pose significant challenges to clinicians.
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Affiliation(s)
- O Stundner
- Paracelsus Medical University, Department of Anaesthesiology, Perioperative Medicine and Intensive Care Medicine, Muellner Hauptstrasse 48, 5020 Salzburg, Austria
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11
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Ganschow R, Pape L, Sturm E, Bauer J, Melter M, Gerner P, Höcker B, Ahlenstiel T, Kemper M, Brinkert F, Sachse MM, Tönshoff B. Growing experience with mTOR inhibitors in pediatric solid organ transplantation. Pediatr Transplant 2013; 17:694-706. [PMID: 24004351 DOI: 10.1111/petr.12147] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/05/2013] [Indexed: 12/31/2022]
Abstract
Controlled trials of mTOR inhibitors in children following solid organ transplantation are scarce, although evidence from prospective single-arm studies is growing. Everolimus with reduced CNI therapy has been shown to be efficacious and safe in de novo pediatric kidney transplant patients in prospective trials. Prospective and retrospective data in children converted from CNI therapy to mTOR inhibition following kidney, liver, or heart transplantation suggest preservation of immunosuppressive efficacy. Good renal function has been maintained when mTOR inhibitors are used de novo in children following kidney transplantation or after conversion to mTOR inhibition with CNI minimization. mTOR inhibition with reduced CNI exposure is associated with a low risk for developing infection in children. Growth and development do not appear to be impaired during low-dose mTOR inhibition, but more studies are required. No firm conclusions can be drawn as to whether mTOR inhibitors should be discontinued in children requiring surgical intervention or whether mTOR inhibition delays progression of hepatic fibrosis after pediatric liver transplantation. In conclusion, current evidence suggests that use of mTOR inhibitors in children undergoing solid organ transplantation is efficacious and safe, but a number of issues remain unresolved and further studies are required.
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Affiliation(s)
- R Ganschow
- Pädiatrische Hepatologie und Lebertransplantation, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
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12
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Abstract
Thoracotomy often results in chronic pain, characterized by resting pain and elevated mechano-sensitivity. This paper defines complex behavioral responses to tactile stimulation in rats after thoracotomy, shown to be reversibly relieved by systemic morphine, in order to develop a novel qualitative "pain" score. A deep incision and 1 hour of rib retraction in male Sprague-Dawley rats resulted in reduced threshold and a change in the locus of greatest tactile (von Frey filament) sensitivity, from the lower back to a more rostral location around the wound site, and extending bilaterally. The fraction of rats showing nocifensive responses to mild stimulation (10 gm) increased after thoracotomy (from a pre-operative value of 0/10 to 8/10 at 10 days post-op), and the average threshold decreased correspondingly, from 15 gm to ∼4 gm. The nature of the nocifensive responses to tactile stimulation, composed pre-operatively only of no response (Grade 0) or brief contractions of the local subcutaneous muscles (Grade I), changed markedly after thoracotomy, with the appearance of new behaviors including a brisk lateral "escape" movement and/or a 180° rotation of the trunk (both included as Grade II), and whole body shuddering, and scratching and squealing (Grade III). Systemic morphine (2.5 mg/kg, i.p.) transiently raised the threshold for response and reduced the frequency of Grade II and III responses, supporting the interpretation that these represent pain. The findings support the development of a Qualitative Hyperalgesic Profile to assess the complex behavior that indicates a central integration of hyperalgesia.
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Affiliation(s)
| | - Ching-Hsia Hung
- Pain Research Center, Brigham & Women's Hospital, Boston MA 02115, USA ; Department of Physical Therapy, Medical College, National Cheng Kung University, Tainan, R.O.C. Taiwan
| | - Peter Gerner
- Department of Anesthesia, University of Salzburg, Salzburg, Austria
| | - Ru-Rong Ji
- Department of Anesthesiology, Duke University, Durham, NC, UK
| | - Gary R Strichartz
- Pain Research Center, Brigham & Women's Hospital, Boston MA 02115, USA
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13
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Djalali AG, Wang JCF, Perez-Valdivieso JR, Danninger T, Fritsch G, Zurakowski D, Gerner P. Ephedrine Shows Synergistic Motor Blockade When Combined with Bupivacaine or Lidocaine for Spinal Anesthesia in a Rat Model. Anesth Analg 2013; 116:944-8. [DOI: 10.1213/ane.0b013e3182834662] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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14
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Memtsoudis SG, Pumberger M, Ma Y, Chiu YL, Fritsch G, Gerner P, Poultsides L, Valle AGD. Epidemiology and risk factors for perioperative mortality after total hip and knee arthroplasty. J Orthop Res 2012; 30:1811-21. [PMID: 22517400 PMCID: PMC3407319 DOI: 10.1002/jor.22139] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Accepted: 04/05/2012] [Indexed: 02/04/2023]
Abstract
The perioperative mortality of total knee and hip arthroplasties (TKA, THA) remains a major concern among health care providers and their patients. The increase in utilization of TKA and THA makes it imperative to be aware of factors that are associated with this unfortunate event. Therefore we analyzed the Nationwide Inpatient Sample data from 1998 to 2008 and compared admissions with perioperative mortality to those that survived their hospitalization. An estimated total of 4,438,213 TKA and 2,182,121 THA procedures were performed in the United States between 1998 and 2008. The average mortality rate for TKA was 0.13% and 0.18% for THA, or 0.34 and 0.44 events per 1,000 inpatient days, respectively. Independent risk factors for in-hospital mortality were advanced age, male gender, ethnic minority background, emergency admission as well as a number of comorbidities and complications. Furthermore, we demonstrated that the timing of death occurred earlier after TKA when compared to THA, with 50% of fatalities occurring by day 4 versus day 6 of the hospitalization, respectively. This study provides nationally representative information on risk factors for and timing of perioperative mortality after TKA and THA. Our data can be used to assess the risk for perioperative mortality and to develop targeted intervention to decrease such risk.
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Affiliation(s)
- Stavros G. Memtsoudis
- Department of Anesthesiology, New York, NY,Department of Public Health and Biostatistics, New York, NY,Hospital for Special Surgery, New York, NY,Weill Medical College of Cornell University, New York, NY
| | - Matthias Pumberger
- Department of Orthopedic Surgery, New York, NY,Hospital for Special Surgery, New York, NY
| | - Yan Ma
- Department of Public Health and Biostatistics, New York, NY,Weill Medical College of Cornell University, New York, NY
| | - Ya-Lin Chiu
- Department of Public Health and Biostatistics, New York, NY,Weill Medical College of Cornell University, New York, NY
| | - Gerhard Fritsch
- Department of Public Health and Biostatistics, New York, NY,Salzburg General Hospital, Paracelsus Medical University, Salzburg, Austria
| | - Peter Gerner
- Department of Public Health and Biostatistics, New York, NY,Salzburg General Hospital, Paracelsus Medical University, Salzburg, Austria
| | - Lazaros Poultsides
- Department of Orthopedic Surgery, New York, NY,Hospital for Special Surgery, New York, NY
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15
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Kirksey M, Chiu YL, Ma Y, Della Valle AG, Poultsides L, Gerner P, Memtsoudis SG. Trends in in-hospital major morbidity and mortality after total joint arthroplasty: United States 1998-2008. Anesth Analg 2012; 115:321-7. [PMID: 22652311 DOI: 10.1213/ane.0b013e31825b6824] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND The use of total joint arthroplasties is increasing worldwide. In this work we aim to elucidate recent trends in demographics and perioperative outcomes of patients undergoing total hip (THA) or total knee arthroplasty (TKA). METHODS Data from the US Nationwide Impatient Sample between 1998 and 2008 were gathered for primary THAs and TKAs. Trends in patient age, comorbidity burden, length of hospitalization, frequency of major perioperative complications, and in-hospital mortality were analyzed. In-hospital outcomes were reported as events per 1000 inpatient days to account for changes in length of hospitalization over time. Deyo index, discharge status, and the interaction effect of time and discharge status were included in the adjusted trend analysis for morbidity. RESULTS Between 1998 and 2008, the average age of patients undergoing TKA and THA decreased by 2 to 3 years (P < 0.001). The average length of stay decreased by approximately 1 day over the time interval studied (P < 0.001). The percentage of patients being discharged home declined from 29.7% to 25.4% after TKA and from 29.3% to 24.2% after THA, in favor of dispositions to long- and short-term care facilities (P < 0.0001). Comorbidity burden as measured by the Deyo comorbidity index increased by 35% and 30% for TKA and THA patients, respectively (P < 0.0001). After TKA, there was an increase in the incidence of the following major complications: pulmonary embolism (coefficient estimate [CE] 0.069; 95% confidence interval [CI], 0.059-0.079; P < 0.0001), sepsis (CE 0.034; 95% CI, 0.014-0.054; P = 0.001), nonmyocardial infarction cardiac complications (CE 0.038; 95% CI, 0.035-0.041; P < 0.0001), and pneumonia (CE 0.039; 95% CI, 0.031-0.047; P < 0.0001). After THA, there was an increase in the incidence of the following major complications: pulmonary embolism (CE 0.031; 95% CI, 0.012-0.049; P = 0.001), sepsis (CE 0.060; 95% CI, 0.039-0.081; P < 0.0001), nonmyocardial infarction cardiac complications (CE 0.040; 95% CI, 0.036-0.043; P < 0.0001), and pneumonia (CE 0.039; 95% CI, 0.029-0.048). In-hospital mortality declined after both TKA (CE -0.059; 95% CI, -0.077 to -0.040; P < 0.0001) and THA (CE -0.068; 95% CI, -0.086 to -0.051; P < 0.0001). CONCLUSION Between 1998 and 2008, trends show increases in several major in-hospital complications after THA and TKA, including pulmonary embolism, sepsis, nonmyocardial infarction cardiac complications, and pneumonia. Despite the increase in complications, declining in-hospital mortality was noted over this period.
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Affiliation(s)
- Meghan Kirksey
- Department of Anesthesiology, New York Presbyterian Hospital-Weill Cornell, New York, NY, USA
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16
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Dohna-Schwake C, Fiedler M, Gierenz N, Gerner P, Ballauf A, Breddemann A, Läer S, Baba HA, Hoyer PF. Primary HHV 6 infection after liver transplantation with acute graft rejection and multi-organ failure: successful treatment with a 2.5-fold dose of cidofovir and reduction of immunosuppression. Pediatr Transplant 2011; 15:E126-9. [PMID: 20331520 DOI: 10.1111/j.1399-3046.2010.01310.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
HHV type 6 has been reported with enhanced pathogenicity in immunocompromised patients. Herein, we report about a two-yr-old girl who experienced primary HHV 6 infection after liver transplantation. She clinically presented with graft rejection and necrotic hepatitis as well as high fever, pneumonitis with respiratory failure and a rash. Therapy with cidofovir of 5 mg/kg per wk did not show improvement, so that a full pharmacokinetic profile of cidofovir was performed. It demonstrated enhanced body weight normalized clearance of cidofovir and cidofovir dosage was augmented to 12 mg/kg per wk to reach adequate drug exposure. With additional reduction of immunosuppression, the patient dramatically improved and liver function stabilized.
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Gerner P, Wang CF, Lee BS, Suzuki S, deGirolami U, Gandhi A, Knaack D, Strichartz G. The Relationship Between Functional Sciatic Nerve Block Duration and the Rate of Release of Lidocaine from a Controlled-Release Matrix. Anesth Analg 2010; 111:221-9. [DOI: 10.1213/ane.0b013e3181dd2690] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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18
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Hung YC, Suzuki S, Huang CJ, Chen CC, Pan YY, Wang CF, Srinavasan V, Gerner P. Resiniferatoxin combined with antidepressants preferentially prolongs sensory/nociceptive block in rat sciatic nerve. Anesth Analg 2010; 111:207-13. [PMID: 20519419 DOI: 10.1213/ane.0b013e3181e0cc90] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Current techniques of peripheral nerve block have major limitations, including lack of differentiation between motor and sensory fibers and potential toxicity of local anesthetics. Recent studies have suggested that a nociceptive-selective nerve block can be achieved via a transient receptor potential vanilloid type 1 activator (capsaicin) along with local anesthetics. We hypothesized that the combination of potent transient receptor potential vanilloid type 1 agonist resiniferatoxin (RTX) and selected antidepressants (amitriptyline, doxepin, and fluoxetine, also potent sodium channel blockers) would produce prolonged and predominantly sensory nerve block. METHODS Rats were anesthetized with isoflurane, and 0.2 mL of amitriptyline, doxepin, or fluoxetine was deposited next to the surgically exposed sciatic nerves (n = 8 per group). Some animals received a second injection containing RTX (n = 8 per group). The effect of nerve block was assessed by neurobehavioral tests of the motor function (extensor postural thrust) and the nocifensive reaction (mechanical pinch). RESULTS A single application of RTX produced nociceptive-selective sciatic nerve block, whereas antidepressants produced nociceptive and motor block. The combined administration of RTX and antidepressant resulted in a predominantly nociceptive nerve block. Compared with antidepressants or RTX alone, the combination prolonged the nociceptive nerve block more than the motor block. CONCLUSIONS The combined application of RTX and antidepressants produced a markedly prolonged nociceptive peripheral nerve block in rat sciatic nerves compared with either agent alone. However, the 2-drug regimen also elicited prolonged blockade of the motor function, although disproportionately less compared with the nociceptive modality, suggesting the existence of nontransient receptor potential vanilloid type 1-mediated mechanisms. The mechanisms through which RTX affects nociceptive signal transduction/transmission have yet to be fully elucidated.
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Affiliation(s)
- Yu-Chun Hung
- Department of Anesthesiology, Mackay Memorial Hospital, 92 Sec. 2, Zhongshan N. Rd., Taipei 10449, Taiwan.
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Dohna-Schwake C, Schweiger B, Gerner P, Paul A, Hoyer PF, Felderhoff-Müser U. Erste Erfahrung mit Zanamivir i.v. bei einem 2-jährigen Mädchen mit H1N1-assoziiertem ARDS nach Leber-Transplantation. Klin Padiatr 2010. [DOI: 10.1055/s-0030-1261425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Pantazis C, Felderhoff-Müser U, Gerner P, Dohna-Schwake C. Vergiftung mit Kupfersulfat in suizidaler Absicht. Klin Padiatr 2010. [DOI: 10.1055/s-0030-1261401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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22
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Jenke ACW, Moser S, Orth V, Zilbauer M, Gerner P, Wirth S. Mutation frequency of NS5A in patients vertically infected with HCV genotype 1 predicts sustained virological response to peginterferon alfa-2b and ribavirin combination therapy. J Viral Hepat 2009; 16:853-9. [PMID: 19682316 DOI: 10.1111/j.1365-2893.2009.01140.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Viral genome analyses performed in adult HCV-patients yielded very inconsistent results and are not transferable to children who are often infected vertically during a state of high immune tolerance. We analysed the mutational frequency in the PKR-binding domain (PKR-BD) of NS5A and PePHD of E2 protein pre- and post-treatment with peginterferon-alfa-2b and ribavirin in children chronically infected with HCV genotype 1. Amino acid sequences of NS5A (2 209-2 274) and E2 (618-681) were determined in serum samples using standard PCR procedures. Concerning the PKR-BD a significant higher number of mutations was observed in vertically compared to horizontally infected patients (2.14 vs 1.24, P-value = 0.03). This difference was exclusively based on the increased number of mutations in responders vs non-responders in vertically infected patients (2.95 vs 1.33; P-value = 0.02). While all patients with at least four mutations (n = 3) did respond to therapy, no other predictive parameters could be identified. In the PePHD no differences could be observed between either of these groups. These findings support the idea that viral properties, mode and therewith time of infection in terms of immune tolerance are equally important factors for predicting SVR in children. However given the low number of cases further studies are required to confirm this hypothesis.
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Affiliation(s)
- A C W Jenke
- Children's Hospital, HELIOS Klinikum Wuppertal, Witten-Herdecke University, Wuppertal, Germany.
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23
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Hung YC, Suzuki S, Chen CC, Pan YY, Wang TY, Cheng JK, Wang GK, Gerner P. Calcium Chloride Prolongs the Effects of Lidocaine and Bupivacaine in Rat Sciatic Nerve. Reg Anesth Pain Med 2009; 34:333-9. [DOI: 10.1097/aap.0b013e3181ac7f49] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wang CF, Djalali AG, Gandhi A, Knaack D, De Girolami U, Strichartz G, Gerner P. An Absorbable Local Anesthetic Matrix Provides Several Days of Functional Sciatic Nerve Blockade. Anesth Analg 2009; 108:1027-33. [DOI: 10.1213/ane.0b013e318193596a] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Gerner P, Wirth S. Hepatitis B und C im Kindesalter. Monatsschr Kinderheilkd 2009. [DOI: 10.1007/s00112-008-1939-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Abstract
BACKGROUND Chronic pain after thoracotomy has been recently reproduced in a rat model that allows investigation of the effect of drugs that might reduce the incidence of allodynia after thoracotomy. Previous studies suggest that intrathecal or systemic morphine, clonidine, neostigmine, and gabapentin reduce the incidence of allodynia in the rat postthoracotomy pain model. Our purpose was to test whether intercostal and systemic injection of bupivacaine prevented the development of allodynia in an animal model of chronic intercostal neuropathic pain. METHODS Male Sprague-Dawley rats were anesthetized and the right 4th and 5th ribs surgically exposed. The pleura were opened and the ribs were retracted for 1 h. Intercostal or systemic bupivacaine 1 mg (0.2 mL at 0.5%) was injected before and after surgery, or before surgery; a control group underwent rib retraction and did not receive any drug. Rats were tested for mechanical allodynia at a predetermined area around the incision site during the 3 wk after surgery. RESULTS Allodynia developed in 43% of the animals that did not receive bupivacaine (control group); in contrast, allodynia developed in only 6%, 12%, and 12% of those animals that received intercostal bupivacaine before surgery, after surgery, or systemically before surgery, respectively. DISCUSSION Previous studies suggest that allodynia after rib retraction can be prevented by opioids, alpha2-adrenergic agonists, neostigmine, and gabapentin. The current results suggest that bupivacaine is effective in preventing mechanical allodynia, whether given by intercostal injection before or after surgery, or systemically before surgery.
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Affiliation(s)
- Jin Woo Shin
- Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA
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Wang CF, Gerner P, Schmidt B, Xu ZZ, Nau C, Wang SY, Ji RR, Wang GK. Use of bulleyaconitine A as an adjuvant for prolonged cutaneous analgesia in the rat. Anesth Analg 2008; 107:1397-405. [PMID: 18806059 DOI: 10.1213/ane.0b013e318182401b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Bulleyaconitine A (BLA) is an analgesic and antiinflammatory drug isolated from Aconitum plants. BLA has several potential targets, including voltage-gated Na+ channels. We tested whether BLA elicited long-lasting cutaneous analgesia, when co-injected with lidocaine and epinephrine, as a model for prolonged infiltration anesthesia. METHODS The local anesthetic properties of BLA were assessed by the patch-clamp technique in HEK293t cells expressing Nav1.7 and Nav1.8 neuronal Na+ channels, both crucial for nociception. Drug solutions (0.6 mL) were injected subcutaneously via rat shaved dorsal skin. Inhibition of the cutaneous trunci muscle reflex was evaluated by pinpricks. Skin cross-sections were stained with hematoxylin and eosin or with antibodies against PGP9.5. RESULTS BLA at 10 microM interacted minimally with resting or inactivated Nav1.7 and Nav1.8 Na+ channels when infrequently stimulated to +50 mV for 3 ms. However, when stimulated at 2 Hz for 1000 pulses, their peak Na+ currents were >90% reduced by BLA. This use-dependent inhibition was not significantly reversed after 15-min washing. Complete nociceptive blockade after injection of lidocaine (0.5%)/epinephrine (1:200,000) lasted for approximately 1 h in rats; full recovery occurred after approximately 6 h. Co-injection of 0.125 mM BLA with lidocaine/epinephrine increased the duration of complete nociceptive blockade to 24 h. Full recovery occurred after approximately 6 days. Skin histology including peripheral nerve fibers appeared unaffected by BLA. CONCLUSIONS BLA inhibits Nav1.7 and Nav1.8 Na+ currents in a use-dependent manner. Co-injection of BLA at <or=0.125 mM with lidocaine and epinephrine elicits complete cutaneous analgesia that lasts for up to 24 h without adverse effects.
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Affiliation(s)
- Chi-Fei Wang
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA
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Abstract
Pain after thoracotomy is very severe, probably the most severe pain experienced after surgery. Thoracic epidural analgesia has greatly improved the pain experience and its consequences and has been considered the standard for pain management after thoracotomy. This view has been challenged recently by the use of paravertebral nerve blocks. Nevertheless, severe ipsilateral shoulder pain and the prevention of the postthoracotomy pain syndrome remain the most important challenges for management of postthoracotomy pain.
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Affiliation(s)
- Peter Gerner
- Department of Anesthesiology, Perioperative and Pain Medicine, Harvard Medical School, Brigham and Women's Hospital, Boston, MA 02115, USA.
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Wang CF, Gerner P, Schmidt B, Wang SY, Wang GK. Prolonged cutaneous analgesia in rats induced by 3-acetylaconitine as an additive. Drug Dev Res 2008. [DOI: 10.1002/ddr.20230] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Lirk P, Haller I, Colvin HP, Lang L, Tomaselli B, Klimaschewski L, Gerner P. In vitro, inhibition of mitogen-activated protein kinase pathways protects against bupivacaine- and ropivacaine-induced neurotoxicity. Anesth Analg 2008; 106:1456-64, table of contents. [PMID: 18420860 DOI: 10.1213/ane.0b013e318168514b] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Animal models show us that specific activation of the p38 mitogen-activated protein kinase (MAPK) may be a pivotal step in lidocaine neurotoxicity, but this has not been investigated in the case of two very widely used local anesthetics, bupivacaine and ropivacaine. We investigated the hypotheses that these drugs (A) are less neurotoxic than the prototype local anesthetic, lidocaine (B) are selectively toxic for subcategories of dorsal root ganglion neurons and (C) induce activation of either p38 MAPK or related enzymes, such as the c-jun terminal N-kinase (JNK) and extracellular signal-regulated kinase (ERK). METHODS We incubated primary sensory neuron cultures with doses of lidocaine, bupivacaine, and ropivacaine equipotent at blocking sodium currents. Next, we sought to determine potential selectivity of bupivacaine and ropivacaine toxicity on neuron categories defined by immunohistochemical staining, or size. Subsequently, the involvement of p38 MAPK, JNK, and ERK was tested using enzyme-linked immunosorbent assays. Finally, the relevance of MAPK pathways in bupivacaine- and ropivacaine-induced neurotoxicity was determined by selectively inhibiting activity of p38 MAPK, JNK, and ERK. RESULTS We found that the neurotoxic potency of bupivacaine and ropivacaine is dose-dependent and similar in vitro, but is not selective for any of the investigated subgroups of neurons. Neurotoxicity of bupivacaine and ropivacaine was mediated, at least in part, by MAPKs. Specifically, we demonstrated the relevance of both p38 MAPK and JNK pathways for the neurotoxicity of bupivacaine and characterized the involvement of the p38 MAPK pathway in the neurotoxicity of ropivacaine. CONCLUSIONS Given equipotent doses, the neurotoxic potential of lidocaine does not appear to be significantly different from that of bupivacaine and ropivacaine in vitro. Moreover, bupivacaine and ropivacaine do not exert their neurotoxicity differently on specific subsets of dorsal root ganglion neurons. Their neurotoxic effects are brought about through the activation of specific MAPKs; the specific pharmacologic inhibition of these kinases attenuates toxicity in vitro.
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Affiliation(s)
- Philipp Lirk
- Department of Anesthesiology and Critical Care Medicine, Innsbruck Medical University, Anichstr. 35, 6020 Innsbruck, Austria.
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Abbasi A, Abdel-Moty E, Abdi S, Adin DR, Ahn SH, Akuthota V, Ante WA, Antony AK, Aprill CN, Are M, Auerbach JD, Barolat G, Bartholomeeusen K, Bartoli LM, Bermas BL, Bhagia SM, Bhargava AS, Bhat AL, Birnbaum K, Bogduk N, Bonaiuti D, Bonaldi G, Borg-Stein J, Botwin KP, Brigham CD, Bronov O, Brown LA, Brown MD, Bryce TN, Burtony AW, Carrino JA, Chen B, Chen YC, Chin C, Chin KR, Chou LH, Chow DW, Chen YC, Cinotti G, Cohen SP, Cooke P, Cucuzzella AR, Daniels RJ, David KS, Day G, Day M, Delamarter RB, DePalma MJ, Derby R, Dillingham TR, Dolinskas CA, Drezner JA, Edrich T, El-Abd O, Ellen MI, Elliott DM, Everett CR, Fayyazi AH, Feler CA, Fernandez J, Ferrari R, Fischgrund JS, Fishbain DA, Fitzgerald CM, Floman Y, Fox EJ, Furman MB, Gallagher RM, Garfin SR, Garvey TA, Gatchel RJ, Gerner P, Gerszten PC, Gilchrist RV, Gotlin RS, Grady MS, Guyer RD, Haig AJ, Hanks S, Hannibal M, Harb M, Harney DF, Harrast MA, Hasan SA, Haspeslagh SRS, Heavner J, Hellinger J, Hellinger S, Helper S, Herkowitz HN, Hosalkar HS, Hsu K, Hubbard RD, Huston CW, Isaac VW, Isaac Z, Kang JD, Kantha BS, Kaplan FS, Karppinen J, Kawaguchi Y, Hynes CK, Kim BJ, Kim CW, Kim DH, Kim DH, Knaub MA, Krabak BJ, Krames ES, Kristiansson PO, Kouri JP, Lackman RD, Lagattuta FP, Lane JM, Le HN, Lee KE, Lee SH, Lenrow DA, Lento PH, Lieberman IH, Lin JT, Lipetz JS, Liss D, Liss H, Lobel SM, López-Acevedo CE, Lord SM, Lu WW, Luk KD, Lutz GE, Maigne JY, Malanga GA, Marley J, Materson R, Mattern CJ, Mayer EA, Mayer TG, McCabe F, McLaughlin C, McPhee IB, Mehta S, Melfi RS, Metkus T, Michaels M, Micheo WF, Minkoff ER, Moley PJ, Monticone M, Moonis G, Moore MR, Moskowitz MH, Mostoufi SA, Nadler SF, Negrini S, Niederwanger M, O'Neill CW, Ohnmeiss DD, Ostelo RW, Ostrowski J, Park AL, Parmar V, Patel RK, Perry A, Phillips FM, Pignolo RJ, Plastaras CT, Postacchini F, Postacchini R, Pradhan BB, Prager JP, Prather H, Prawak AS, Press JM, Qiu G, Racz GB, Ragnarsson KT, Rao RD, Reeves RS, Rigolosi L, Rosomoff HL, Rosomoff RS, Rothman SM, Russell AS, Rydevik B, Sakalkale D, Savarese R, Sawchuk TC, Schofferman J, Schuster J, Schwartz ED, Shah RV, Sheth P, Simeone FA, Simotas AC, Singh G, Singh R, Skaggs CD, Slezak J, Slipman CW, Smeal WL, Solomon JL, Sommer HM, Sorosky B, Southern D, Sowa GA, Stojanovic MP, Sullivan WJ, Talu GK, Tarquinio A, Tasca P, Thomas SA, Thongtrangan I, Tirado CF, Tobey JE, Togawa D, Torbert JT, Trevisan C, Triano JJ, Tyburski MD, Uddin MN, Vaccaro A, Vad VB, Wiele CVD, van Kleef M, Van Zundert J, Vlassakov K, Weigele JB, Welch WC, Wen C, Windsor RE, Winklestein BA, Won DS, Wood K, Yerramalli CS, Yeung AT, Yeung CA, Yin W, Zaman FM, Zucherman JF. List of Contributors. Interventional Spine 2008:ix-xv. [DOI: 10.1016/b978-0-7216-2872-1.50002-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Lirk P, Haller I, Colvin HP, Frauscher S, Kirchmair L, Gerner P, Klimaschewski L. In vitro, lidocaine-induced axonal injury is prevented by peripheral inhibition of the p38 mitogen-activated protein kinase, but not by inhibiting caspase activity. Anesth Analg 2007; 105:1657-64, table of contents. [PMID: 18042864 DOI: 10.1213/01.ane.0000286171.78182.e2] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND All local anesthetics (LAs) are, to some extent, neurotoxic. Toxicity studies have been performed in dissociated neuron cultures, immersing both axon and soma in LA. This approach, however, does not accurately reflect the in vivo situation for peripheral nerve blockade, where LA is applied to the axon alone. METHODS We investigated lidocaine neurotoxicity in compartmental sensory neuron cultures, which are composed of one central compartment containing neuronal cell bodies and a peripheral compartment containing their axons, allowing for selective incubation. We applied lidocaine +/- neuroprotective drugs to neuronal somata or axons, and assessed neuron survival and axonal outgrowth. RESULTS Lidocaine applied to the peripheral compartment led to a decreased number of axons (to 59% +/- 9%), without affecting survival of cell bodies. During axonal incubation with lidocaine, the p38 mitogen-activated protein kinase inhibitor SB203580 (10 microM) attenuated axonal injury when applied to the axon (insignificant reduction of maximal axonal distance to 93% +/- 9%), but not when applied to the cell body (deterioration of maximal axonal length to 48% +/- 6%). Axonal co-incubation of lidocaine with the caspase inhibitor z-vad-fmk (20 microM) was not protective. CONCLUSIONS Whereas inhibition of either p38 mitogen-activated protein kinase or caspase activity promote neuronal survival after LA treatment of dissociated neuronal cultures, axonal degeneration induced by lidocain (40 mM) is prevented by p38 MAP kinase but not by caspase inhibition. We conclude that processes leading to LA-induced neurotoxicity in dissociated neuronal culture may be different from those observed after purely axonal application.
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Affiliation(s)
- Philipp Lirk
- Department of Anesthesiology and Critical Care Medicine, Innsbruck Medical University, Innsbruck, Austria.
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Hung YC, Chen CY, Lirk P, Wang CF, Cheng JK, Chen CC, Wang GK, Gerner P. Magnesium sulfate diminishes the effects of amide local anesthetics in rat sciatic-nerve block. Reg Anesth Pain Med 2007; 32:288-95. [PMID: 17720112 PMCID: PMC2001297 DOI: 10.1016/j.rapm.2007.03.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2006] [Revised: 03/14/2007] [Accepted: 03/14/2007] [Indexed: 11/18/2022]
Abstract
BACKGROUND AND OBJECTIVES Magnesium sulfate (MgSO(4)) is well known as an antagonist of N-methyl-d-aspartate receptors and was used for intrathecal analgesia a century ago. However, the effects of MgSO(4) combined with local anesthetics (LAs) on peripheral nerves are unclear. We tested the hypothesis that MgSO(4) could be used as an adjuvant to prolong and intensify conduction block by amide-type LAs in a rat sciatic-nerve block model. Further, the mechanism of possible synergy between LAs and MgSO(4) was investigated in whole-cell mode patch-clamp experiments. METHODS Sciatic nerves were exposed to 2%/73.9 mM lidocaine, 0.25%/7.7 mM bupivacaine, and 0.5%/15.4 mM ropivacaine, with or without addition of 1.25%, 2.5%, or 5% MgSO(4)/50.7 mM, and nerve block characteristics were assessed. To elucidate the LA-MgSO(4) interaction, voltage-dependent inactivation curves were determined in cultured rat GH(3) cells that expressed neuronal Na(+) channels. RESULTS Unexpectedly, the addition of MgSO(4) overall significantly shortened the duration of block by lidocaine, bupivacaine, and ropivacaine. The steady-state inactivation of Na(+) channels in the presence of 300 muM lidocaine was almost unchanged by the addition of 10 mM MgSO(4), indicating that MgSO(4) does not affect the potency of lidocaine toward the inactivated Na(+) channel. CONCLUSIONS MgSO(4) coadministered with amide-type LAs shortened the duration of sciatic-nerve block in rats. Therefore, it does not seem to be useful as an adjuvant for peripheral-nerve block. The mechanism of this observed antagonism is unclear but appears to be independent of the action of LAs and MgSO(4) at the LA receptor within the Na(+) channel.
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Affiliation(s)
- Yu-Chun Hung
- Department of Anesthesiology, Mackay Memorial Hospital, Taipei, Taiwan
- Mackay Medicine, Nursing and Management College, Taipei, Taiwan
| | - Chia-Ying Chen
- Doctoral student, Department of Agronomy, Biometry, National Taiwan University
| | - Philipp Lirk
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - Chi-Fei Wang
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - Jen-Kun Cheng
- Department of Anesthesiology, Mackay Memorial Hospital, Taipei, Taiwan
| | - Chien-Chuan Chen
- Department of Anesthesiology, Mackay Memorial Hospital, Taipei, Taiwan
- Mackay Medicine, Nursing and Management College, Taipei, Taiwan
| | - Ging Kuo Wang
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - Peter Gerner
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
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Abstract
BACKGROUND Bulleyaconitine A (BLA) is an active ingredient of Aconitum bulleyanum plants. BLA has been approved for the treatment of chronic pain and rheumatoid arthritis in China, but its underlying mechanism remains unclear. METHODS The authors examined (1) the effects of BLA on neuronal voltage-gated Na channels in vitro under the whole cell patch clamp configuration and (2) the sensory and motor functions of rat sciatic nerve after single BLA injections in vivo. RESULTS BLA at 10 microm did not affect neuronal Na currents in clonal GH3 cells when stimulated infrequently to +50 mV. When stimulated at 2 Hz for 1,000 pulses (+50 mV for 4 ms), BLA reduced the peak Na currents by more than 90%. This use-dependent reduction of Na currents by BLA reversed little after washing. Single injections of BLA (0.2 ml at 0.375 mm) into the rat sciatic notch not only blocked sensory and motor functions of the sciatic nerve but also induced hyperexcitability, followed by sedation, arrhythmia, and respiratory distress. When BLA at 0.375 mm was coinjected with 2% lidocaine (approximately 80 mm) or epinephrine (1:100,000) to reduce drug absorption by the bloodstream, the sensory and motor functions of the sciatic nerve remained fully blocked for approximately 4 h and regressed completely after approximately 7 h, with minimal systemic effects. CONCLUSIONS BLA reduces neuronal Na currents strongly at +50 mV in a use-dependent manner. When coinjected with lidocaine or epinephrine, BLA elicits prolonged block of both motor and sensory functions in rats with minimal adverse effects.
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Affiliation(s)
- Chi-Fei Wang
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA.
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Fridrich P, Colvin HP, Zizza A, Wasan AD, Lukanich J, Lirk P, Saria A, Zernig G, Hamp T, Gerner P. Phase 1A safety assessment of intravenous amitriptyline. J Pain 2007; 8:549-55. [PMID: 17512256 PMCID: PMC2001298 DOI: 10.1016/j.jpain.2007.02.433] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2006] [Revised: 02/01/2007] [Accepted: 02/22/2007] [Indexed: 10/23/2022]
Abstract
UNLABELLED The antidepressant amitriptyline is used as an adjuvant in the treatment of chronic pain. Among its many actions, amitriptyline blocks Na+ channels and nerves in several animal and human models. As perioperative intravenous lidocaine has been suggested to decrease postoperative pain, amitriptyline, because of its longer half-life time, might be more useful than lidocaine. However, the use of intravenous amitriptyline is not approved by the US Food and Drug Administration. We therefore investigated the adverse effects of preoperative intravenous amitriptyline in a typical phase 1A trial. After obtaining written Food and Drug Administration and institutional review board approval, we obtained written consent for preoperative infusion of amitriptyline in an open-label, dose-escalating design (25, 50, and 100 mg, n=5 per group). Plasma levels of amitriptyline/nortriptyline were determined, and adverse effects were recorded in a predetermined symptom list. Infusion of 25 and 50 mg amitriptyline appears to be well tolerated; however, the study was terminated when 1 subject in the 100-mg group developed severe bradycardia. Intravenous infusion of amitriptyline (25 to 50 mg over 1 hour) did not create side effects beyond dry mouth and drowsiness, or dizziness, in 2 of our 10 otherwise healthy participants receiving the 25- to 50-mg dose. An appropriately powered future trial is necessary to determine a potential role of amitriptyline in decreasing postoperative pain. PERSPECTIVE Amitriptyline potently blocks the persistently open Na+ channels, which are known to be instrumental in various pain states. As this occurs at very low plasma concentrations, a single preoperative intravenous infusion of amitriptyline could provide long-lasting pain relief and decrease the incidence of chronic pain.
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Affiliation(s)
- Peter Fridrich
- Attending Anesthesiologist, Trauma Hospital Lorenz Boehler, Vienna, Austria
| | - Hans Peter Colvin
- Research Assistant and Medical Student, Department of Anesthesiology and Critical Care Medicine, Division of Neurochemistry, Medical University Innsbruck, Austria
| | - Anthony Zizza
- Research Assistant and Medical Student, Department of Anesthesiology, Perioperative, and Pain Medicine Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Ajay D. Wasan
- Instructor, Department of Anesthesiology, Perioperative and Pain Medicine and Department of Psychiatry, Perioperative, and Pain Medicine Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Jean Lukanich
- Assistant Professor, Department of Thoracic Surgery, Perioperative, and Pain Medicine Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Philipp Lirk
- Resident, Department of Anesthesiology and Critical Care Medicine, Division of Neurochemistry, Medical University Innsbruck, Austria
| | - Alois Saria
- Professor, Department of Psychiatry, Division of Neurochemistry, Medical University Innsbruck, Austria
| | - Gerald Zernig
- Associate Professor, Department of Psychiatry, Division of Neurochemistry, Medical University Innsbruck, Austria
| | - Thomas Hamp
- Research Assistant and Medical Student, Trauma Hospital Lorenz Boehler, Vienna, Austria
| | - Peter Gerner
- Assistant Professor, Perioperative, and Pain Medicine Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
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Haller I, Lirk P, Keller C, Wang GK, Gerner P, Klimaschewski L. Differential neurotoxicity of tricyclic antidepressants and novel derivatives in vitro in a dorsal root ganglion cell culture model. Eur J Anaesthesiol 2007; 24:702-8. [PMID: 17437653 DOI: 10.1017/s0265021507000154] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND AND OBJECTIVE Tricyclic antidepressants are commonly employed orally to treat major depressive disorders and have been shown to be of substantial benefit in various chronic pain conditions. Among other properties they are potent Na+ channel blockers in vitro and show local anaesthetic properties in vivo. The present study aimed to determine their differential neurotoxicity, and that of novel derivatives as prerequisite for their potential use in regional anaesthesia. METHODS To directly test neurotoxicity in adult peripheral neurons, the culture model of dissociated adult rat primary sensory neurons was employed. Neurons were incubated for 24 h with amitriptyline, N-methyl-amitriptyline, doxepin, N-methyl-doxepin, N-propyl-doxepin, desipramine, imipramine and trimipramine at 100 mumol, and at concentrations correlating to their respective potency in blocking sodium channels. RESULTS All investigated substances showed considerable neurotoxic potency as represented in significantly decreased neuron numbers in cultures as compared to controls. Specifically, doxepin was more neurotoxic than amitriptyline, and both imipramine and trimipramine were more toxic than desipramine or amitriptyline. Novel derivatives of tricyclic antidepressants were, in general, more toxic than the parent compound. CONCLUSIONS Tricyclic antidepressants and novel derivatives thereof show differential neurotoxic potential in vitro. The rank order of toxicity relative to sodium channel blocking potency was desipramine < amitriptyline < N-methyl amitriptyline < doxepin < trimipramine < imipramine < N-methyl doxepin < N-propyl doxepin.
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Affiliation(s)
- I Haller
- Medical University of Innsbruck, Department of Anesthesiology and Critical Care Medicine, Innsbruck, Austria
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Abstract
Near-infrared to visible upconversion luminescence in CsCaCl3:Tm2+, CsCaBr3:Tm2+ and CsCaI3:Tm2+ is presented and analysed. The upconversion process involves exclusively the 4f-5d excited states of Tm2+, which is a novelty among upconversion materials. The presence of more than one long-lived 4f-5d excited state is the prerequisite for this. Multiple emissions from Tm2+ are observed in the title compounds. This is made possible by the favourable energy structure within the 4f-5d states and the low phonon energies of the materials. The energy positions of the relevant 4f-5d states, and thus the photophysical and light emission properties, are affected by the chemical variation along the series. The upconversion efficiency increases from chloride to iodide and the mechanism is found to be a combination of absorption and energy-transfer steps.
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Affiliation(s)
- J Grimm
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
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Haller I, Hausott B, Tomaselli B, Keller C, Klimaschewski L, Gerner P, Lirk P. Neurotoxicity of lidocaine involves specific activation of the p38 mitogen-activated protein kinase, but not extracellular signal-regulated or c-jun N-terminal kinases, and is mediated by arachidonic acid metabolites. Anesthesiology 2006; 105:1024-33. [PMID: 17065898 DOI: 10.1097/00000542-200611000-00025] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Pharmacologic inhibition of the p38 mitogen-activated protein kinase (MAPK) leads to a reduction in lidocaine neurotoxicity in vitro and in vivo. The current study investigated in vitro the hypotheses that lidocaine neurotoxicity is specific for dorsal root ganglion cells of different size or phenotype, involves time-dependent and specific activation of the p38 MAPK, that p38 MAPK inhibitors are only effective if applied with local anesthetic, and that p38 MAPK activation triggers activation of lipoxygenase pathways. METHODS The authors used primary sensory neuron cultures and pheochromocytoma cell line cultures to detect time-dependent activation of the p38 MAPK or related pathways such as extracellular signal-regulated kinases and c-jun N-terminal kinases. Cells were divided by size or by immunoreactivity for calcitonin gene-related peptide or isolectin B4, indicative of nociceptive phenotype. The authors also investigated whether arachidonic acid pathways represent a downstream effector of the p38 MAPK in local anesthetic-induced neurotoxicity. RESULTS All types of dorsal root ganglion cells were subject to neurotoxic effects of lidocaine, which were mediated by specific activation of the p38 MAPK but not extracellular signal-regulated kinases or c-jun N-terminal kinases. Neuroprotective efficacy of p38 MAPK inhibitors declined significantly when administered more than 1 h after lidocaine exposure. Activation of p38 MAPK preceded activation of arachidonic acid pathways. Neurotoxicity of lidocaine, specific activation of p38 MAPK, and neuroprotective effects of a p38 MAPK inhibitor were further confirmed in pheochromocytoma cell line cultures. CONCLUSIONS Specific and time-dependent activation of the p38 MAPK is involved in lidocaine-induced neurotoxicity, most likely followed by activation of lipoxygenase pathways.
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Affiliation(s)
- Ingrid Haller
- Department of Anesthesiology and Critical Care Medicine, Medical University of Innsbruck, Innsbruck, Austria
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Lirk P, Haller I, Hausott B, Ingorokva S, Deibl M, Gerner P, Klimaschewski L. The neurotoxic effects of amitriptyline are mediated by apoptosis and are effectively blocked by inhibition of caspase activity. Anesth Analg 2006; 102:1728-33. [PMID: 16717317 DOI: 10.1213/01.ane.0000216018.62549.bb] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Oral tricyclic antidepressants, widely used as adjuncts in the treatment of chronic pain, block sodium channels in vitro and nerve conduction in vivo. However, toxicity of amitriptyline has been observed after neural application. We therefore investigated the mechanism and possible prevention of amitriptyline neurotoxicity. To assess dose-dependent neurotoxicity of amitriptyline, we incubated neuron cultures from adult rat dorsal root ganglia with amitriptyline and quantified neuronal survival. Additionally, we investigated accepted markers of apoptosis (mitochondrial membrane potential, cytosolic cytochrome c, and activated caspase-3) and co-incubated amitriptyline with an inhibitor of caspase activity, z-vad-fmk, to assess the effect on cell survival. We found a dose-dependent neurotoxic effect of amitriptyline. Neurons incubated with amitriptyline exhibited loss of mitochondrial membrane potential, release of cytochrome c into the cytoplasm, and activation of caspase-3. Co-incubation with z-vad-fmk substantially improved neuronal survival in culture. In conclusion, amitriptyline-induced neurotoxicity is mediated by apoptosis and is attenuated by inhibition of caspase activity, suggesting that inhibition of apoptotic pathways may be efficient at alleviating local anesthetic-induced neurotoxicity. In vivo studies will have to corroborate whether the co-injection of anti-apoptotic drugs with local anesthetics decreases neurotoxic side effects.
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Affiliation(s)
- Philipp Lirk
- Department of Anesthesiology and Critical Care Medicine, Innsbruck Medical University, Austria.
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Sheets PL, Gerner P, Wang CF, Wang SY, Wang GK, Cummins TR. Inhibition of Nav1.7 and Nav1.4 sodium channels by trifluoperazine involves the local anesthetic receptor. J Neurophysiol 2006; 96:1848-59. [PMID: 16807347 DOI: 10.1152/jn.00354.2006] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The calmodulin (CaM) inhibitor trifluoperazine (TFP) can produce analgesia when given intrathecally to rats; however, the mechanism is not known. We asked whether TFP could modulate the Na(v)1.7 sodium channel, which is highly expressed in the peripheral nervous system and plays an important role in nociception. We show that 500 nM and 2 muM TFP induce major decreases in Na(v)1.7 and Na(v)1.4 current amplitudes and that 2 muM TFP causes hyperpolarizing shifts in the steady-state inactivation of Na(v)1.7 and Na(v)1.4. CaM can bind to the C-termini of voltage-gated sodium channels and modulate their functional properties; therefore we investigated if TFP modulation of sodium channels was due to CaM inhibition. However, the TFP inhibition was not replicated by whole cell dialysis of a calmodulin inhibitory peptide, indicating that major effects of TFP do not involve a disruption of CaM-channel interactions. Rather, our data show that TFP inhibition is state dependent and that the majority of the TFP inhibition depends on specific amino-acid residues in the local anesthetic receptor site in sodium channels. TFP was also effective in vivo in causing motor and sensory blockade after subfascial injection to the rat sciatic nerve. The state-dependent block of Na(v)1.7 channels with nanomolar concentrations of TFP raises the possibility that TFP, or TFP analogues, might be useful for regional anesthesia and pain management and could be more potent than traditional local anesthetics.
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Affiliation(s)
- Patrick L Sheets
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
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Lirk P, Haller I, Myers RR, Klimaschewski L, Kau YC, Hung YC, Gerner P. Mitigation of Direct Neurotoxic Effects of Lidocaine and Amitriptyline by Inhibition of p38 Mitogen-activated Protein Kinase In Vitro and In Vivo. Anesthesiology 2006; 104:1266-73. [PMID: 16732099 DOI: 10.1097/00000542-200606000-00023] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Background
Local anesthetic-induced direct neurotoxicity (paresthesia, failure to regain normal sensory and motor function) is a potentially devastating complication of regional anesthesia. Local anesthetics activate the p38 mitogen-activated protein kinase (MAPK) system, which is involved in apoptotic cell death. The authors therefore investigated in vitro (cultured primary sensory neurons) and in vivo (sciatic nerve block model) the potential neuroprotective effect of the p38 MAPK inhibitor SB203580 administered together with a clinical (lidocaine) or investigational (amitriptyline) local anesthetic.
Methods
Cell survival and mitochondrial depolarization as marker of apoptotic cell death was assessed in rat dorsal root ganglia incubated with lidocaine or amitriptyline either with or without the addition of SB203580. Similarly, in a sciatic nerve block model, the authors assessed wallerian degeneration by light microscopy to detect a potential mitigating effect of MAPK inhibition.
Results
Lidocaine at 40 mm/approximately 1% and amitriptyline at 100 microm reduce neuron count, but coincubation with the p38 MAPK inhibitor SB203580 at 10 mum significantly reduces cytotoxicity and the number of neurons exhibiting mitochondrial depolarization. Also, wallerian degeneration and demyelination induced by lidocaine (600 mm/approximately 15%) and amitriptyline (10 mm/approximately 0.3%) seem to be mitigated by SB203580.
Conclusions
The cytotoxic effect of lidocaine and amitriptyline in cultured dorsal root ganglia cells and the nerve degeneration in the rat sciatic nerve model seem, at least in part, to be mediated by apoptosis but seem efficiently blocked by an inhibitor of p38 MAPK, making it conceivable that coinjection might be useful in preventing local anesthetic-induced neurotoxicity.
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Affiliation(s)
- Philipp Lirk
- Department of Anesthesiology and Critical Care Medicine, Medical University of Innsbruck, Austria
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Amir R, Argoff CE, Bennett GJ, Cummins TR, Durieux ME, Gerner P, Gold MS, Porreca F, Strichartz GR. The Role of Sodium Channels in Chronic Inflammatory and Neuropathic Pain. The Journal of Pain 2006; 7:S1-29. [PMID: 16632328 DOI: 10.1016/j.jpain.2006.01.444] [Citation(s) in RCA: 243] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2005] [Revised: 01/13/2006] [Accepted: 01/20/2006] [Indexed: 11/25/2022]
Abstract
UNLABELLED Clinical and experimental data indicate that changes in the expression of voltage-gated sodium channels play a key role in the pathogenesis of neuropathic pain and that drugs that block these channels are potentially therapeutic. Clinical and experimental data also suggest that changes in voltage-gated sodium channels may play a role in inflammatory pain, and here too sodium-channel blockers may have therapeutic potential. The sodium-channel blockers of interest include local anesthetics, used at doses far below those that block nerve impulse propagation, and tricyclic antidepressants, whose analgesic effects may at least partly be due to blockade of sodium channels. Recent data show that local anesthetics may have pain-relieving actions via targets other than sodium channels, including neuronal G protein-coupled receptors and binding sites on immune cells. Some of these actions occur with nanomolar drug concentrations, and some are detected only with relatively long-term drug exposure. There are 9 isoforms of the voltage-gated sodium channel alpha-subunit, and several of the isoforms that are implicated in neuropathic and inflammatory pain states are expressed by somatosensory primary afferent neurons but not by skeletal or cardiovascular muscle. This restricted expression raises the possibility that isoform-specific drugs might be analgesic and lacking the cardiotoxicity and neurotoxicity that limit the use of current sodium-channel blockers. PERSPECTIVE Changes in the expression of neuronal voltage-gated sodium channels may play a key role in the pathogenesis of both chronic neuropathic and chronic inflammatory pain conditions. Drugs that block these channels may have therapeutic efficacy with doses that are far below those that impair nerve impulse propagation or cardiovascular function.
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Affiliation(s)
- Ron Amir
- Department of Cell and Animal Biology, Institute of Life Sciences, Hebrew University of Jerusalem, Jerusalem, Israel
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Abstract
BACKGROUND The sympathomimetic drug ephedrine has been used intrathecally as the sole local anesthetic for labor and delivery. Because ephedrine may be a useful adjuvant to local anesthetics, the authors investigated the local anesthetic properties of ephedrine in a rat sciatic nerve block model and the underlying mechanism in cultured cells stably expressing Na channels. METHODS After approval of the animal protocol, the sciatic nerves of anesthetized rats were exposed by lateral incision of the thighs, 0.2 ml ephedrine at 0.25, 1, 2.5, or 5% and/or bupivacaine at 0.125% was injected, and the wound was closed. Motor and sensory/nociceptive functions were evaluated by the force achieved by pushing against a balance and the reaction to pinch, respectively. The whole cell configuration of the patch clamp technique was used to record Na currents from human embryonal kidney cells stably transfected with Nav1.4 channels. RESULTS The nociception blockade was significantly longer than the motor blockade at test doses of 2.5 and 5% of ephedrine, or when 1% ephedrine was combined with 0.125% bupivacaine (analysis of variance with repeated measures, P < 0.001, n = 8/group). In vitro, the 50% inhibitory concentrations of ephedrine at -150 and -60 mV were 1,043 +/- 70 and 473 +/- 13 mum, respectively. High-frequency stimulation revealed a use-dependent block of 18%, similar to most local anesthetics. CONCLUSIONS Because ephedrine's properties are at least partly due to Na channel blockade, detailed histopathologic investigations are justified to determine the potential of ephedrine as an adjuvant to clinically used local anesthetics.
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Affiliation(s)
- Yu-Chun Hung
- Department of Anesthesiology, Mackay Memorial Hospital, Taipei, Taiwan
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Kau YC, Hung YC, Zizza AM, Zurakowski D, Greco WR, Wang GK, Gerner P. Efficacy of Lidocaine or Bupivacaine Combined With Ephedrine in Rat Sciatic Nerve Block. Reg Anesth Pain Med 2006; 31:14-8. [PMID: 16418019 DOI: 10.1016/j.rapm.2005.08.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2005] [Revised: 08/30/2005] [Accepted: 08/30/2005] [Indexed: 10/25/2022]
Abstract
BACKGROUND AND OBJECTIVES The adrenergic drug ephedrine inhibits Na(+) current in cultured cells expressing Na(+) channels and provides dose-dependent reversible rat sciatic nerve blockade. The dosage required for peripheral nerve blockade in humans would cause unacceptable cardiovascular side effects. We therefore hypothesized that either lidocaine or bupivacaine would show synergy with ephedrine in a rat sciatic nerve block model, allowing a dose reduction and limiting side effects while improving efficacy. METHODS Sciatic nerves of anesthetized rats were exposed by lateral incision of the thighs; 0.2 mL of different concentrations of the following drugs was injected sub-fascially: bupivacaine, lidocaine, and ephedrine alone and bupivacaine or lidocaine combined with ephedrine (n=8 per group). After animals recovered from anesthesia, a blinded investigator evaluated motor blockade (push against a balance) and sensory/nociceptive blockade (to pinch of the fifth toe) at predefined time intervals. RESULTS Ephedrine combined with bupivacaine interacted additively for both motor and sensory blockade, and ephedrine combined with lidocaine interacted antagonistically (sub-additive) for sensory blockade and additively for motor blockade. CONCLUSIONS A combination of ephedrine with either lidocaine or bupivacaine is unlikely to allow a significant dose reduction because of a lack of synergy. Furthermore, the cardiovascular side effects will limit the maximal tolerable dosage of ephedrine.
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Affiliation(s)
- Yi-Chuan Kau
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
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Abstract
The tricyclic antidepressant, doxepin, has been reported to be a potent local anesthetic in rat sciatic nerve blockade. We hypothesized that topical doxepin has significantly longer antinociception compared with control and intrathecally compared with bupivacaine. Solutions of 0.3 mL of doxepin at 50, 75, and 100 mM and control (only the vehicle solution) were applied as a patch to the shaved dorsal skin of rats. After a 2-h contact interval, the patch was removed, and the rats were tested by three sets of six pinpricks. Inhibition of withdrawal to pain and cutaneous trunci muscle reflex were graded. In the second investigation, 60 muL of doxepin at 10, 20, and 50 mM was injected through intrathecal catheters implanted in the lumbar region of rats, which were evaluated for motor function, proprioception, and nociception. Topical doxepin at concentrations of 75 mM and 100 mM was significantly more effective than control (P < 0.05). Complete recovery for the 100-mM concentration occurred at 60 h, although two of five rats demonstrated erythema and scarring. Intrathecally, 20 mM of doxepin was not significantly different for motor and proprioceptive function from 23 mM (0.75%) bupivacaine; however, neurotoxicity (defined as persistent neurological deficit) commenced at 50 mM.
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Affiliation(s)
- Peter Gerner
- Pain Research Center, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115, USA.
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Gerner P, Luo SH, Zhuang ZY, Djalali AG, Zizza AM, Myers RR, Wang GK. Differential block of N-propyl derivatives of amitriptyline and doxepin for sciatic nerve block in rats. Reg Anesth Pain Med 2005; 30:344-50. [PMID: 16032586 DOI: 10.1016/j.rapm.2005.04.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND AND OBJECTIVES The propyl group of ropivacaine ( N -propyl-2',6'-pipecoloxylidide hydrochloride) could be responsible for conferring some sensory selectivity to this drug. Thus, adding a propyl group to experimental local anesthetics (LAs) (e.g., the tricyclic antidepressants amitriptyline and doxepin) to increase sensory selectivity may be useful. We, therefore, synthesized N -propyl amitriptyline and N -propyl doxepin and investigated a potential predominance of sensory/nociceptive block over motor block (differential block) in a rat sciatic nerve block model. In addition, tetrodotoxin (TTX), a naturally occuring Na + channel blocker, was coinjected to investigate whether it increased block duration. METHODS A 0.2-mL test dose of N -propyl amitriptyline and N -propyl doxepin, at a concentration of 1, 2.5, 5, and 10 mM, (alone or in combination with TTX at a concentration of 20 microM) was injected by the subfascial sciatic nerve approach. Motor function and sensory function (nociception) were evaluated by the force a rat's hind limb produced when pushing against a balance and the reaction to pinch, respectively. RESULTS N -propyl amitriptyline and N -propyl doxepin demonstrated prolonged block duration, with N -propyl amitriptyline displaying significant differential block at higher concentrations (5 and 10 mM). The combination of either of these drugs with TTX increased the potency as well as the efficacy. Neurotoxicity commenced at concentrations of 5 to 10 mM. CONCLUSIONS Detailed histopathologic nerve toxicity evaluations are justified to determine whether N -propyl amitriptyline has potential as a more sensory-selective local anesthetic at lower concentrations or as a predominantly sensory-selective neurolytic agent at higher concentrations.
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Affiliation(s)
- Peter Gerner
- Pain Research Center, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA.
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Affiliation(s)
- B Laubscher
- Department of Paediatrics, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.
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Zhuang ZY, Gerner P, Woolf CJ, Ji RR. ERK is sequentially activated in neurons, microglia, and astrocytes by spinal nerve ligation and contributes to mechanical allodynia in this neuropathic pain model. Pain 2005; 114:149-59. [PMID: 15733640 DOI: 10.1016/j.pain.2004.12.022] [Citation(s) in RCA: 611] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2003] [Revised: 12/03/2004] [Accepted: 12/13/2004] [Indexed: 12/30/2022]
Abstract
Activation of extracellular signal-regulated kinase (ERK), a mitogen activated-protein kinase (MAPK), in dorsal horn neurons contributes to inflammatory pain by transcription-dependent and -independent means. We have now investigated if ERK is activated in the spinal cord after a spinal nerve ligation (SNL) and if this contributes to the neuropathic pain-like behavior generated in this model. An L5 SNL induces an immediate (<10 min) but transient (<6 h) induction of phosphoERK (pERK) restricted to neurons in the superficial dorsal horn. This is followed by a widespread induction of pERK in spinal microglia that peaks between 1 and 3 days post-surgery. On Day 10, pERK is expressed both in astrocytes and microglia, but by Day 21 predominantly in astrocytes in the dorsal horn. In the L5 DRG SNL transiently induces pERK in neurons at 10 min, and in satellite cells on Day 10 and 21. Intrathecal injection of the MEK (ERK kinase) inhibitor PD98059 on Day 2, 10 or 21 reduces SNL-induced mechanical allodynia. Our results suggest that ERK activation in the dorsal horn, as well as in the DRG, mediates pain through different mechanisms operating in different cells at different times. The sequential activation of ERK in dorsal horn microglia and then in astrocytes might reflect distinct roles for these two subtypes of glia in the temporal evolution of neuropathic pain.
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Affiliation(s)
- Zhi-Ye Zhuang
- Pain Research Center, Department of Anesthesiology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
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