Louis Perkins, Gerardo Pedroza, Max Soghikian, Jarrett E Santorelli, Laura N Haines, Kevin Box, Jeanne G Lee, Rodney Gabriel, John J Finneran
{"title":"Continuous peripheral nerve blocks for burn management: a retrospective study of outcomes and complications in 281 burn patients.","authors":"Louis Perkins, Gerardo Pedroza, Max Soghikian, Jarrett E Santorelli, Laura N Haines, Kevin Box, Jeanne G Lee, Rodney Gabriel, John J Finneran","doi":"10.1136/rapm-2024-105930","DOIUrl":"https://doi.org/10.1136/rapm-2024-105930","url":null,"abstract":"<p><strong>Background: </strong>There is scarce literature regarding the use of continuous peripheral nerve blocks in acute burn patients, who may be at higher risk for catheter-related complications, including infection. We sought to describe our center's experience and infection rate with continuous perineural catheters in the setting of pain management for patients suffering from burns.</p><p><strong>Methods: </strong>A retrospective observational study was performed including all patients admitted to an American Burn Association-verified regional burn center between January 2018 and July 2023 who received a continuous peripheral nerve block for an acute burn injury.</p><p><strong>Results: </strong>There were 281 patients in the study cohort who received 484 perineural catheters. The cohort was 52% men with a median age of 39 years (IQR 30-55). A catheter-associated infection, defined as a clinical diagnosis by the treating physicians requiring the need for treatment with antibiotics or surgical debridement, was identified in six perineural catheters (1.2%, 95% CI 0% to 2.2%) involving six different patients (2.1%, 95% CI 0% to 3.8%). The median total body surface area burned was 5% (IQR 2-9%) and 20% of patients had full-thickness burns. The most commonly used catheters were infraclavicular (49%), popliteal sciatic (29%), femoral (19%), and adductor canal (17%). One-third (33%) of patients did not require operating room debridement as the block provided sufficient analgesia for bedside debridement. The median duration of catheter use was 6 days (IQR 4-8). There were no documented cases of nerve injury or toxicity, vascular injury, or local anesthetic systemic toxicity.</p><p><strong>Conclusions: </strong>In our practice, continuous perineural catheters in the setting of acute burns are associated with an infection rate comparable to other surgical populations.</p>","PeriodicalId":54503,"journal":{"name":"Regional Anesthesia and Pain Medicine","volume":" ","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142559449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Michelle Chong, Maria Fernanda Rojas Gomez, Philip Peng
{"title":"Axillary nerve: what anesthesiologists and pain physicians should know.","authors":"Michelle Chong, Maria Fernanda Rojas Gomez, Philip Peng","doi":"10.1136/rapm-2024-106010","DOIUrl":"https://doi.org/10.1136/rapm-2024-106010","url":null,"abstract":"<p><p>Innervation of the shoulder joint is complex and remains poorly understood among regional anesthesiologists and chronic pain specialists. Current literature supports the important contribution of the axillary nerve to the total innervation of the shoulder, as well as its blockade for perioperative pain and denervation for chronic shoulder pain. However, a description of the entire course of the axillary nerve, the corresponding optimal targets, and the sonoanatomy pertinent to pain intervention is lacking. This educational article discusses in detail the functional anatomy and sonographic identification of possible windows for axillary nerve intervention. We discuss the contribution, extent, and type of innervation the axillary nerve provides to the shoulder joint, which is often misunderstood. Ultimately, this article serves to stimulate thoughts and ideas for future research in an area where literature is scarce.</p>","PeriodicalId":54503,"journal":{"name":"Regional Anesthesia and Pain Medicine","volume":" ","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142513064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Terence Hillery, Hannah Hill, Emily Imka, David Di Lorenzo, Gustaf van Acker, Chong Kim
{"title":"MRI genicular nerve mapping: a novel approach to sagittal genicular nerve localization.","authors":"Terence Hillery, Hannah Hill, Emily Imka, David Di Lorenzo, Gustaf van Acker, Chong Kim","doi":"10.1136/rapm-2024-105981","DOIUrl":"https://doi.org/10.1136/rapm-2024-105981","url":null,"abstract":"<p><strong>Background and objectives: </strong>Chronic knee pain, including postarthroplasty knee pain, is a major cause of morbidity. Radiofrequency ablation of genicular nerve branches is a treatment option. The literature to date has demonstrated and recommended consistent rhizotomy targets in the coronal and axial position of the three primary genicular nerve branches (superomedial genicular nerve, superolateral genicular nerve, inferomedial genicular nerve). The debate on genicular nerve positions focuses on the anterior-posterior courses of the nerve branches.</p><p><strong>Methods: </strong>The sagittal positions of the three primary genicular neurovascular bundles were measured in 28 consecutive knee MRI and described relative to the total anterior-posterior depth of the bony cortex. Standard radiofrequency capture radius at the classic rhizotomy targets sites was compared with identified nerve position to report proportion of observed nerves within the capture radius.</p><p><strong>Results: </strong>The genicular neurovascular bundles were found further posterior than classic landmark targets. Proportion of visualized nerve branches captured by classic rhizotomy target radius varied by genicular nerve branch.</p><p><strong>Conclusions: </strong>This study supports updated guidance on genicular rhizotomy targets. Nerve localization studies using MRI data may be a promising avenue in future nerve localization research pertinent to rhizotomy.</p>","PeriodicalId":54503,"journal":{"name":"Regional Anesthesia and Pain Medicine","volume":" ","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142513065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Randomized comparison between ultrasound-guided proximal and distal approaches of intercostobrachial nerve block as an adjunct to supraclavicular brachial plexus block for upper arm arteriovenous access procedures.","authors":"Artid Samerchua, Kittitorn Supphapipat, Prangmalee Leurcharusmee, Panuwat Lapisatepun, Pornpailin Thammasupapong, Sratwadee Lorsomradee","doi":"10.1136/rapm-2024-105973","DOIUrl":"https://doi.org/10.1136/rapm-2024-105973","url":null,"abstract":"<p><strong>Backgrounds: </strong>Ultrasound-guided proximal and distal approaches of the intercostobrachial nerve (ICBN) blocks facilitate analgesia for upper arm and axillary surgery, though success rates vary and lack clinical comparison. This study compared their anesthetic and analgesic efficacy as an adjunct to the supraclavicular brachial plexus block for upper arm arteriovenous access surgery.</p><p><strong>Methods: </strong>60 end-stage renal disease patients undergoing upper arm arteriovenous access were randomly assigned to receive either proximal or distal ICBN block using 10 mL of a mixture of levobupivacaine and lidocaine with epinephrine. The primary outcome was a successful ICBN block, defined as a cutaneous sensory blockade at both the medial upper arm and axilla 30 min after the block. Secondary outcomes included block performance, block-related complications, rate of surgical anesthesia, and postoperative analgesia.</p><p><strong>Results: </strong>The proximal approach had a higher percentage of sensory blockade at the axilla (96.7% vs 73.3%, p=0.03), but comparable rates at the medial upper arm (96.7% vs 96.7%, p=1.00). Consequently, the proximal approach had a higher overall success rate (96.7% vs 73.3%, difference: 23.3%; 95% CI: 6.3%, 40.4%; p=0.03). Both groups had similar surgical anesthesia rates of 93.3%. No significant differences were found in performance time, procedural pain, or postoperative pain intensity.</p><p><strong>Conclusions: </strong>Proximal ICBN block consistently reduced sensation in the medial upper arm and axilla, while one-quarter of distal blocks spared the axilla. Both approaches, in combination with a supraclavicular brachial plexus block, were effective for upper arm arteriovenous access procedures. However, the proximal approach may be preferable for axillary surgery.</p><p><strong>Trial registration number: </strong>TCTR20200730006.</p>","PeriodicalId":54503,"journal":{"name":"Regional Anesthesia and Pain Medicine","volume":" ","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142513066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alejandro Hallo-Carrasco, Laura Furtado Pessoa de Mendonca, David Anthony Provenzano, Jason Eldrige, Dario Mendoza-Chipantasi, Sebastian Encalada, Christine Hunt
{"title":"Social media users' perspectives of spinal cord stimulation: an analysis of data sourced from social media.","authors":"Alejandro Hallo-Carrasco, Laura Furtado Pessoa de Mendonca, David Anthony Provenzano, Jason Eldrige, Dario Mendoza-Chipantasi, Sebastian Encalada, Christine Hunt","doi":"10.1136/rapm-2024-105935","DOIUrl":"https://doi.org/10.1136/rapm-2024-105935","url":null,"abstract":"<p><strong>Objectives: </strong>To identify Reddit users' viewpoints and inquiries about spinal cord stimulation (SCS) for chronic back pain using Reddit databases.</p><p><strong>Methods: </strong>We performed a qualitative analysis of public, anonymous threads and comments from targeted subreddits within the Reddit community. We used the Python Reddit API Wrapper to extract relevant data. A qualitative descriptive approach was employed, using natural language processing to identify and categorize common questions, concerns, and opinions shared by patients regarding SCS.</p><p><strong>Results: </strong>Our analysis included 112 posts and 448 comments. The tone of comments was neutral (n=231), followed by negative (n=121) and positive (n=96). 13 users actively encouraged other users to try the procedure, while 25 advised against it. The main topics of discussions revolved around pain relief expectations and adverse events. Almost half of users commenting about pain relief expectations reported experiencing considerably lower improvement than anticipated. Pocket pain, lead fracture/migration, infection risk, and scars were common topics of discussion among users. Furthermore, users shared strategies to mitigate postoperative discomfort and offered insights into device selection based on MRI conditionality, reprogramming need, and charging prerequisites.</p><p><strong>Conclusion: </strong>Our Reddit analysis identified potential targets for enhanced dialog between physicians and patients around anticipated pain relief, complications, and postoperative care. Reddit and other social media platforms may offer valuable opportunities for healthcare professionals to improve engagement with patients.</p>","PeriodicalId":54503,"journal":{"name":"Regional Anesthesia and Pain Medicine","volume":" ","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142513067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Monica Harbell, David P Seamans, Natalie R Langley, Ryan Craner, James A Nelson
{"title":"Revisiting the superficial parasternal intercostal plane block: a response to Dost <i>et al</i>.","authors":"Monica Harbell, David P Seamans, Natalie R Langley, Ryan Craner, James A Nelson","doi":"10.1136/rapm-2024-106053","DOIUrl":"https://doi.org/10.1136/rapm-2024-106053","url":null,"abstract":"","PeriodicalId":54503,"journal":{"name":"Regional Anesthesia and Pain Medicine","volume":" ","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142481045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Angela Lucia Balocco, Sam Van Boxstael, Admir Hadzic, Philippe Emmanuel Gautier
{"title":"Response to the letter: Clinical outcomes for substantiation of imaging findings - the 'wasted' advantage over cadaveric studies.","authors":"Angela Lucia Balocco, Sam Van Boxstael, Admir Hadzic, Philippe Emmanuel Gautier","doi":"10.1136/rapm-2024-106022","DOIUrl":"https://doi.org/10.1136/rapm-2024-106022","url":null,"abstract":"","PeriodicalId":54503,"journal":{"name":"Regional Anesthesia and Pain Medicine","volume":" ","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142481044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Burhan Dost, Serkan Tulgar, Ali Ahiskalioglu, Alessandro De Cassai
{"title":"Letter to the editor: Anatomical evaluation of the superficial parasternal intercostal plane block.","authors":"Burhan Dost, Serkan Tulgar, Ali Ahiskalioglu, Alessandro De Cassai","doi":"10.1136/rapm-2024-106011","DOIUrl":"https://doi.org/10.1136/rapm-2024-106011","url":null,"abstract":"","PeriodicalId":54503,"journal":{"name":"Regional Anesthesia and Pain Medicine","volume":" ","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142481043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Graeme A McLeod, Amy Sadler, Andre Boezaart, Xavier Sala-Blanch, Miguel Angel Reina
{"title":"Peripheral nerve microanatomy: new insights into possible mechanisms for block success.","authors":"Graeme A McLeod, Amy Sadler, Andre Boezaart, Xavier Sala-Blanch, Miguel Angel Reina","doi":"10.1136/rapm-2024-105721","DOIUrl":"10.1136/rapm-2024-105721","url":null,"abstract":"<p><p>Postmortem histology and in vivo, animal-based ultra-high-definition microultrasound demonstrate a complex array of non-communicating adipose tissue compartments enclosed by fascia. Classic nerve block mechanisms and histology do not consider this tissue. Injected local anesthetic agents can occupy any of these adipose compartments, which may explain the significant differences in outcomes such as success rates, onset time, block density, duration of nerve block, and secondary continuous block failure. Furthermore, these adipose tissue compartments may influence injection pressures, making conclusions about needle tip location unreliable. This educational review will explain the neural anatomy associated with these fatty compartments in detail and suggest how they may affect block outcomes.</p>","PeriodicalId":54503,"journal":{"name":"Regional Anesthesia and Pain Medicine","volume":" ","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142332475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}