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Heslot C, Khan O, Schnitzler A, Haldane C, David R, Reebye R. Enhancing Botulinum Toxin Injection Precision: The Efficacy of a Single Cadaveric Ultrasound Training Intervention for Improved Anatomical Localization. Toxins (Basel) 2024; 16:304. [PMID: 39057944 PMCID: PMC11281316 DOI: 10.3390/toxins16070304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/25/2024] [Accepted: 06/26/2024] [Indexed: 07/28/2024] Open
Abstract
Ultrasound guidance can enhance existing landmark-based injection methods, even through a brief and single exposure during a cadaveric training course. A total of twelve participants were enrolled in this training program, comprising nine physical medicine and rehabilitation specialists, one pediatrician, and two physician assistants. For each participant, one upper-limb muscle and one lower-limb muscle were randomly chosen from the preselected muscle group. Subsequently, participants were tasked with injecting both of their chosen cadaveric muscles with 1 mL of acrylic paint using a manual needle palpation technique, relying solely on their knowledge of anatomic landmarks. Participants then underwent a personalized, one-to-one ultrasound teaching session, lasting approximately five minutes, conducted by two highly experienced instructors. Following this instructive phase, participants were tasked with a second round of injections, targeting the same two muscles in the lower and upper limbs. However, this time, the injections were performed using anatomical landmarks and ultrasound guidance. To facilitate differentiation from the initial injections, a distinct color of acrylic paint was employed. When employing the anatomical landmark-based approach, the overall success rate for injections was 67%, with 16 out of 24 targeted muscles accurately injected. With the incorporation of ultrasound guidance, the success rate was 92%, precisely targeting 22 out of the 24 muscles under examination. There was an improvement in injection accuracy achievable through the integration of ultrasound guidance, even with minimal training exposure. Our single cadaveric ultra-sound training program contributes valuable insights to the utilization of ultrasound for anatomy training to help optimize the targeting of BoNT-A.
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Affiliation(s)
- Camille Heslot
- Division of Physical Medicine and Rehabilitation, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
- Canadian Advances in Neuro-Orthopedics for Spasticity Congress (CANOSC), Kingston, ON K7K 1Z6, Canada
- Faculty of Medicine, Paris Cité University, 75006 Paris, France
- Department of Physical Medicine and Rehabilitation, GH St Louis Lariboisière F. Widal, 75010 Paris, France
| | - Omar Khan
- Canadian Advances in Neuro-Orthopedics for Spasticity Congress (CANOSC), Kingston, ON K7K 1Z6, Canada
- Hotel Dieu Shaver Health and Rehabilitation Centre, St. Catharines, ON L2T 4C2, Canada
| | - Alexis Schnitzler
- Faculty of Medicine, Paris Cité University, 75006 Paris, France
- Department of Physical Medicine and Rehabilitation, GH St Louis Lariboisière F. Widal, 75010 Paris, France
| | - Chloe Haldane
- Division of Physical Medicine and Rehabilitation, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
- Canadian Advances in Neuro-Orthopedics for Spasticity Congress (CANOSC), Kingston, ON K7K 1Z6, Canada
| | - Romain David
- Canadian Advances in Neuro-Orthopedics for Spasticity Congress (CANOSC), Kingston, ON K7K 1Z6, Canada
- PRISMATICS Lab (Predictive Research in Spine/Neuromodulation Management and Thoracic Innovation/Cardiac Surgery), Poitiers University Hospital, 86000 Poitiers, France
- Department of Physical Medicine and Rehabilitation, Poitiers University Hospital, 86000 Poitiers, France
| | - Rajiv Reebye
- Division of Physical Medicine and Rehabilitation, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
- Canadian Advances in Neuro-Orthopedics for Spasticity Congress (CANOSC), Kingston, ON K7K 1Z6, Canada
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Lagnau P, Lo A, Sandarage R, Alter K, Picelli A, Wissel J, Verduzco-Gutierrez M, Suputtitada A, Munin MC, Carda S, Khan O, Koçer S, Reebye R. Ergonomic Recommendations in Ultrasound-Guided Botulinum Neurotoxin Chemodenervation for Spasticity: An International Expert Group Opinion. Toxins (Basel) 2021; 13:249. [PMID: 33807196 PMCID: PMC8067138 DOI: 10.3390/toxins13040249] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/29/2021] [Accepted: 03/30/2021] [Indexed: 02/06/2023] Open
Abstract
Ultrasound (US)-guided botulinum neurotoxin (BoNT) injections are becoming a mainstay in the treatment of muscle spasticity in upper motor neuron syndromes. As a result, there has been a commensurate increase in US-guided BoNT injection for spasticity training courses. However, many of these courses do not emphasize the importance of ergonomics. This paper aims to highlight the importance of ultrasound ergonomics and presents ergonomic recommendations to optimize US-guided BoNT injection techniques in spasticity management. Expert consensus opinion of 11 physicians (4 different continents; representing 8 countries, with an average of 12.6 years of practice using US guidance for BoNT chemodenervation (range 3 to 22 years)). A search using PubMed, College of Physicians and Surgeons of British Columbia database, EMbase was conducted and found no publications relating the importance of ergonomics in US-guided chemodenervation. Therefore, recommendations and consensus discussions were generated from the distribution of a 20-question survey to a panel of 11 ultrasound experts. All 11 surveyed physicians considered ergonomics to be important in reducing physician injury. There was complete agreement that physician positioning was important; 91% agreement that patient positioning was important; and 82% that ultrasound machine positioning was important. Factors that did not reach our 80% threshold for consensus were further discussed. Four categories were identified as being important when implementing ultrasound ergonomics for BoNT chemodenervation for spasticity; workstation, physician, patient and visual ergonomics. Optimizing ergonomics is paramount when performing US-guided BoNT chemodenervation for spasticity management. This includes proper preparation of the workspace and allowing for sufficient pre-injection time to optimally position both the patient and the physician. Lack of awareness of ergonomics for US-guided BoNT chemodenervation for spasticity may lead to suboptimal patient outcomes, increase work-related injuries, and patient discomfort. We propose key elements for optimal positioning of physicians and patients, as well as the optimal setup of the workspace and provide clinical pearls in visual identification of spastic muscles for chemodenervation.
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Affiliation(s)
- Philippe Lagnau
- GF Strong Rehabilitation Centre, Vancouver, BC V5Z 2G9, Canada;
- Canadian Advances in Neuro-Orthopedics for Spasticity Congress (CANOSC), Kingston, ON K7K 1Z6, Canada; (A.L.); (R.S.); (A.S.); (S.C.); (O.K.)
| | - Alto Lo
- Canadian Advances in Neuro-Orthopedics for Spasticity Congress (CANOSC), Kingston, ON K7K 1Z6, Canada; (A.L.); (R.S.); (A.S.); (S.C.); (O.K.)
- Division of Physical Medicine and Rehabilitation, University of Alberta, Edmonton, AB T6G 2R3, Canada
| | - Ryan Sandarage
- Canadian Advances in Neuro-Orthopedics for Spasticity Congress (CANOSC), Kingston, ON K7K 1Z6, Canada; (A.L.); (R.S.); (A.S.); (S.C.); (O.K.)
- Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Katharine Alter
- Functional and Applied Biomechanics Section, Rehabilitation Medicine, Clinical Center, National Institutes of Health, Bethesda, MD 20892, USA;
| | - Alessandro Picelli
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, 37134 Verona, Italy;
| | - Jorg Wissel
- Neurological Rehabilitation & Physical Therapy, Department of Neurology with Stroke Unit, Vivantes Hospital Spandau, 13585 Berlin, Germany;
| | - Monica Verduzco-Gutierrez
- Department of Rehabilitation Medicine, Joe-R.-and-Teresa-Lozano Long School of Medicine, UT Health San Antonio, San Antonio, TX 78229, USA;
| | - Areerat Suputtitada
- Canadian Advances in Neuro-Orthopedics for Spasticity Congress (CANOSC), Kingston, ON K7K 1Z6, Canada; (A.L.); (R.S.); (A.S.); (S.C.); (O.K.)
- Department of Rehabilitation Medicine, Faculty of Medicine, Chulalongkorn University, and King Chulalongkorn Memorial Hospital, Bangkok 10330, Thailand
| | - Michael C. Munin
- Physical Medicine and Rehabilitation School of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA;
| | - Stefano Carda
- Canadian Advances in Neuro-Orthopedics for Spasticity Congress (CANOSC), Kingston, ON K7K 1Z6, Canada; (A.L.); (R.S.); (A.S.); (S.C.); (O.K.)
- Neuropsychology and Neurorehabilitation Service, Department of Clinical Neuroscience, Lausanne University Hospital (CHUV), 1011 Lausanne, Switzerland
| | - Omar Khan
- Canadian Advances in Neuro-Orthopedics for Spasticity Congress (CANOSC), Kingston, ON K7K 1Z6, Canada; (A.L.); (R.S.); (A.S.); (S.C.); (O.K.)
- Hotel Dieu Shaver Health and Rehabilitation Centre, St. Catharines, ON L2T 4C2, Canada
| | - Serdar Koçer
- Centre de Rééducation Hôpital du Jura, 2900 Porrentruy, Switzerland;
| | - Rajiv Reebye
- GF Strong Rehabilitation Centre, Vancouver, BC V5Z 2G9, Canada;
- Canadian Advances in Neuro-Orthopedics for Spasticity Congress (CANOSC), Kingston, ON K7K 1Z6, Canada; (A.L.); (R.S.); (A.S.); (S.C.); (O.K.)
- Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
- Division of Physical Medicine and Rehabilitation, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
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Schwalje AT, Hoffman HT. Intraductal Salivary Gland Infusion With Botulinum Toxin. Laryngoscope Investig Otolaryngol 2019; 4:520-525. [PMID: 31637296 PMCID: PMC6793609 DOI: 10.1002/lio2.306] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Accepted: 06/24/2019] [Indexed: 01/04/2023] Open
Abstract
Background Administration of botulinum toxin through intraductal salivary infusion may decrease the risks of percutaneous needle injection and improve delivery to permeate the entire gland parenchyma. Methods The safety of intraductal salivary gland infusion was tested with prospective evaluation of two patients using interviews, clinical examination, and pressure measurement during infusion. Retrospective chart review of two subsequently treated patients assessed treatment of a parotid-cutaneous fistula and sialorrhea. Results No complications were identified in the safety study. Pressure changes during infusion supported the concept of botulinum neurotoxin delivery to permeate the gland. Patient-assessed success was subjectively reported as a reduction in the parotid-cutaneous output "by 95%" and the sialorrhea "by 90%" at 2-week follow-up. Conclusions The intraductal route of botulinum toxin delivery to salivary glands was without complication and was effective in two patients treated therapeutically. Pressure measurements during infusion may be helpful to direct treatment. Level of Evidence 4.
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Affiliation(s)
- Adam T Schwalje
- Department of Otolaryngology-Head and Neck Surgery University of Iowa Hospitals and Clinics Iowa City Iowa U.S.A
| | - Henry T Hoffman
- Department of Otolaryngology-Head and Neck Surgery University of Iowa Hospitals and Clinics Iowa City Iowa U.S.A
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