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Gabriel RA, Seng EC, Curran BP, Winston P, Trescot AM, Filipovski I. A Narrative Review of Ultrasound-Guided and Landmark-based Percutaneous Cryoneurolysis for the Management of Acute and Chronic Pain. Curr Pain Headache Rep 2024:10.1007/s11916-024-01281-z. [PMID: 38963513 DOI: 10.1007/s11916-024-01281-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/06/2024] [Indexed: 07/05/2024]
Abstract
PURPOSE OF REVIEW Cryoneurolysis refers to the process of reversibly ablating peripheral nerves with extremely cold temperatures to provide analgesia for weeks to months. With ultrasound-guidance or landmark-based techniques, it is an effective modality for managing both acute and chronic pain. In this review, we summarize the reported literature behind its potential applications and efficacy. RECENT FINDINGS Here, we summarize several studies (from case reports to clinical trials) describing the use of ultrasound-guided and landmark-based cryoneurolysis for acute and chronic pain. Acute pain indications included pain related to knee arthroplasty, limb amputations, mastectomies, shoulder surgery, rib fractures, and burn. Chronic pain indications included chronic knee pain (due to osteoarthritis), shoulder pain, painful neuropathies, postmastectomy pain syndrome, phantom limb pain, facial pain/headaches, foot/ankle pain, inguinal pain, and sacroiliac joint pain. For both acute and chronic pain indications, more high quality randomized controlled clinical trials are needed to definitively assess the efficacy of cryoneurolysis versus other standard therapies for a multitude of pain conditions.
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Affiliation(s)
- Rodney A Gabriel
- University of California, San Diego, La Jolla, CA, California, USA.
| | - Eri C Seng
- University of California, San Diego, La Jolla, CA, California, USA
| | - Brian P Curran
- University of California, San Diego, La Jolla, CA, California, USA
| | - Paul Winston
- University of British Columbia, Vancouver, Canada
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Chang DL, Mirman B, Mehta N, Pak D. Applications of Cryoneurolysis in Chronic Pain Management: a Review of the Current Literature. Curr Pain Headache Rep 2024; 28:403-416. [PMID: 38372950 DOI: 10.1007/s11916-024-01222-w] [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] [Accepted: 01/30/2024] [Indexed: 02/20/2024]
Abstract
PURPOSE OF REVIEW The purpose of this review is to evaluate and summarize the literature investigating cryoneurolysis in the treatment of various chronic pain pathologies. RECENT FINDINGS There is an increasing amount of interest in the use of cryoneurolysis in chronic pain, and various studies have investigated its use in lumbar facet joint pain, SI joint pain, post-thoracotomy syndrome, temporomandibular joint pain, chronic knee pain, phantom limb pain, neuropathic pain, and abdominal pain. Numerous retrospective studies and a more limited number of prospective, sham-controlled prospective studies suggest the efficacy of cryoneurolysis in managing these chronic pain pathologies with a low complication rate. However, more blinded, controlled, prospective studies comparing cryoneurolysis to other techniques are needed to clarify its relative risks and advantages.
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Affiliation(s)
- David L Chang
- Department of Anesthesiology, Perioperative and Pain Medicine, Mount Sinai Hospital, 1 Gustave L. Levy Place, New York, NY, 10029, USA.
| | - Benjamin Mirman
- Department of Anesthesiology, Perioperative and Pain Medicine, Mount Sinai Hospital, 1 Gustave L. Levy Place, New York, NY, 10029, USA
| | - Neel Mehta
- Weill Cornell Medical College, Department of Anesthesiology, New York Presbyterian Hospital, New York, NY, USA
| | - Daniel Pak
- Weill Cornell Medical College, Department of Anesthesiology, New York Presbyterian Hospital, New York, NY, USA
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Kalava A, Pham K, Okon S. Cryoneurolysis of the Subcostal Nerve: A Technical Description and Case Report. Cureus 2024; 16:e57521. [PMID: 38706996 PMCID: PMC11067826 DOI: 10.7759/cureus.57521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/08/2024] [Indexed: 05/07/2024] Open
Abstract
Cryoneurolysis has been utilized for numerous persistent and intractable painful conditions, including phantom limb pain and postsurgical pain. Although there are reports on the effectiveness of cryoneurolysis in various regions, including the intercostal nerves, the subcostal nerve remains a common culprit of chronic pain for which the literature is scarce. Different modalities are commonly utilized to address subcostal neuropathic pain, such as non-opioid pharmacotherapy, including nonsteroidal anti-inflammatory drugs (NSAIDs) and anticonvulsants, site-specific regional anesthesia, and radiofrequency ablation.However, the analgesia provided by these modalities is often inadequate or short-lived. Cryoneurolysis of the subcostal nerve remains largely unexplored and may provide a promising solution.Here, we present the first technical description of ultrasound and fluoroscopic guided percutaneous cryoneurolysis of the subcostal nerve and the case of a patient with 14 years of lower thoracic rib pain who failed multiple interventions but achieved complete pain resolution at the three-month follow-up through this procedure.
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Affiliation(s)
- Arun Kalava
- Anesthesiology, University of Central Florida, Orlando, USA
- Anesthesiology, TampaPainMD, Tampa, USA
| | - Karen Pham
- Anesthesiology, Northeast Ohio Medical University, Rootstown, USA
- College of Arts and Sciences, University of Pennsylvania, Philadelphia, USA
| | - Sidney Okon
- Medicine, Mercy Catholic Medical Center, Philadelphia, USA
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Eldredge RS, Ochoa B, Khoury E, Mihalcin K, Ostlie D, Lee J, McMahon L, Notrica D, Padilla BE. Long-Term Sensory Function 3 years after Minimally Invasive Repair of Pectus Excavatum with Cryoablation. J Pediatr Surg 2024; 59:379-384. [PMID: 37973420 DOI: 10.1016/j.jpedsurg.2023.10.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 11/19/2023]
Abstract
INTRODUCTION Minimally invasive repair of pectus excavatum (MIRPE) with intercostal nerve cryoablation (Cryo) decreases length of hospitalization and opioid use, but long-term recovery of sensation has been poorly described. The purpose of this study was to quantify long-term hypoesthesia and neuropathic pain after MIRPE with Cryo. METHODS A prospective cohort study was conducted single-institution of patients ≤21 years who presented for bar removal. Consented patients underwent chest wall sensory testing and completed neuropathic pain screening. Chest wall hypoesthesia to cold, soft touch, and pinprick were measured as the percent of the treated anterior chest wall surface area (TACWSA); neuropathic pain was evaluated by questionnaire. RESULTS The study enrolled 47 patients; 87% male; median age 18.4 years. The median bar dwell time was 2.9 years. A median of 2 bars were placed; 80.9% were secured with pericostal sutures. At enrollment, 46.8% of patients had identifiable chest wall hypoesthesia. The mean percentage of TACWSA with hypoesthesia was 4.7 ± 9.3% (cold), 3.9 ± 7.7% (soft touch), and 5.9 ± 11.8% (pinprick). Hypoesthesia to cold was found in 0 dermatomes in 62%, 1 dermatome in 11%, 2 dermatomes in 17% and ≥3 dermatomes in 11%. T5 was the most common dermatome with hypoesthesia. Neuropathic symptoms were identified by 13% of patients; none required treatment. CONCLUSION In long-term follow up after MIRPE with Cryo, 46.8% of patients experienced some chest wall hypoesthesia; the average TACWSA with hypoesthesia was 4-6%. Hypoesthesia was mostly limited to 1-2 dermatomes, most commonly T5. Chronic symptomatic neuropathic pain was rare. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- R Scott Eldredge
- Division of Pediatric Surgery, Phoenix Children's, Phoenix, AZ, USA; Division of General Surgery, Mayo Clinic Arizona, Phoenix, AZ, USA
| | - Brielle Ochoa
- Division of Pediatric Surgery, Phoenix Children's, Phoenix, AZ, USA
| | - Emily Khoury
- Division of Pediatric Surgery, Phoenix Children's, Phoenix, AZ, USA
| | - Kristin Mihalcin
- Division of Pediatric Surgery, Phoenix Children's, Phoenix, AZ, USA
| | - Daniel Ostlie
- Division of Pediatric Surgery, Phoenix Children's, Phoenix, AZ, USA; University of Arizona School of Medicine, Phoenix, AZ, USA
| | - Justin Lee
- Division of Pediatric Surgery, Phoenix Children's, Phoenix, AZ, USA; University of Arizona School of Medicine, Phoenix, AZ, USA
| | - Lisa McMahon
- Division of Pediatric Surgery, Phoenix Children's, Phoenix, AZ, USA; University of Arizona School of Medicine, Phoenix, AZ, USA
| | - David Notrica
- Division of Pediatric Surgery, Phoenix Children's, Phoenix, AZ, USA; University of Arizona School of Medicine, Phoenix, AZ, USA
| | - Benjamin E Padilla
- Division of Pediatric Surgery, Phoenix Children's, Phoenix, AZ, USA; University of Arizona School of Medicine, Phoenix, AZ, USA.
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Filipovski I, Gabriel RA, Kestenholz R. Ultrasound-Guided Cryoneurolysis for the Treatment of Painful Diabetic Neuropathy of the Foot: A Case Series. Cureus 2024; 16:e56267. [PMID: 38495961 PMCID: PMC10944322 DOI: 10.7759/cureus.56267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/16/2024] [Indexed: 03/19/2024] Open
Abstract
Diabetic peripheral neuropathy is one of the most common causes of chronic neuropathic pain. Treatment of peripheral neuropathy has been limited to either treating the underlying cause or using medications, such as tricyclic antidepressants and anticonvulsants, to manage the symptoms. In this case series, we report the use of ultrasound-guided percutaneous cryoneurolysis of the superficial peroneal nerves to treat diabetic neuropathy of the feet. This demonstrates the potential effectiveness and safety of using cryoneurolysis for painful peripheral diabetic neuropathy.
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Affiliation(s)
| | - Rodney A Gabriel
- Anesthesiology, University of California San Diego, San Diego, USA
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Silva J, Shehata P, Sehmbi H, Abd-Elsayed A. Radiofrequency ablation and pulsed radiofrequency of the lower extremities. RADIOFREQUENCY ABLATION TECHNIQUES 2024:140-168. [DOI: 10.1016/b978-0-323-87063-4.00023-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Nemecek Z, Sturm C, Rauen AC, Reisig F, Streitberger K, Harnik MA. Ultrasound-controlled cryoneurolysis for peripheral mononeuropathies: a retrospective cohort study. Pain Manag 2023; 13:363-372. [PMID: 37424263 DOI: 10.2217/pmt-2023-0053] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023] Open
Abstract
Aim: Cryoneurolysis is a potential therapy for peripheral mononeuropathies, but randomized studies of its effects on the duration of pain reduction are lacking. Methods: This retrospective cohort study evaluated the analgesic effects of cryoneurolysis on patients with refractory peripheral mononeuropathy. We included 24 patients who underwent ultrasound-guided cryoneurolysis between June 2018 and July 2022. The daily maximum pain level was recorded using a numerical rating scale before and 1, 3 and 6 months after the procedure. Results: At 1 month, 54.2% of patients reported pain reduction of at least 30%. This percentage was significantly lower at 3 and 6 months (13.8 and 9.1%, respectively). Conclusion: Our results suggest that repeated cryoneurolysis may be a viable treatment for refractory mononeuropathy. Further investigations are needed.
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Affiliation(s)
- Zdenek Nemecek
- Department of Anesthesiology & Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Constanze Sturm
- Department of Osteoporosis, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Anna C Rauen
- Department of Anesthesiology & Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Florian Reisig
- Department of Anesthesiology & Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Konrad Streitberger
- Department of Anesthesiology & Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Michael A Harnik
- Department of Anesthesiology & Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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Hua Y, Wu D, Gao T, Liu L, He Y, Ding Y, Rao Q, Wu Q, Zhao Z. Minimally invasive interventional therapy for pain. J Interv Med 2023. [DOI: 10.1016/j.jimed.2023.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
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Biel E, Aroke EN, Maye J, Zhang SJ. The applications of cryoneurolysis for acute and chronic pain management. Pain Pract 2023; 23:204-215. [PMID: 36370129 PMCID: PMC10107282 DOI: 10.1111/papr.13182] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 10/03/2022] [Accepted: 10/11/2022] [Indexed: 11/15/2022]
Abstract
BACKGROUND Cryoneurolysis is a term used to describe the application of extreme cold to targeted nerve tissue. The primary goal of the application of a thermal neurolytic technique is to disrupt the conduction of pain signals from the periphery to the central nervous system and eliminate or diminish the experience of pain. Recent advancements in ultrasound technology coupled with the development and approval of handheld devices specifically designed to deliver cryoneurolysis has expanded the use of this modality in the perioperative setting. APPLICATION Surgical procedures including total knee arthroplasties, shoulder arthroplasties, thoracotomies, and mastectomies have all demonstrated long-term pain relief benefits when cryoneurolysis has been administered days to weeks prior to the planned procedure. In addition, the newly designed handheld device allows for office-based clinical use and has been utilized for various chronic pain conditions including neuropathic and phantom limb pain. CONCLUSION The evidence clearly demonstrates that cryoneurolysis has a low risk profile and when administered appropriately, provides prolonged analgesia without promoting motor blockade. This narrative review article describes the unique mechanism of action of cryoneurolysis for prolonged pain relief and provides emerging evidence to support its applications in both acute and chronic pain management.
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Affiliation(s)
- Emily Biel
- Nurse Anesthesiology ProgramUniversity of South FloridaTampaFloridaUSA
| | - Edwin N. Aroke
- University of Alabama at Birmingham School of NursingBirminghamAlabamaUSA
| | - John Maye
- School of NursingUniversity of South FloridaTampaFloridaUSA
| | - Sarah Jingying Zhang
- School of NursingUniversity of South FloridaTampaFloridaUSA
- University of California San FranciscoSan FranciscoCaliforniaUSA
- Samuel Merritt UniversityOaklandCaliforniaUSA
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10
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Moradi Tuchayi S, Wang Y, Pence IJ, Fast A, Stemmer-Rachamimov A, Evans CL, Anderson RR, Garibyan L. Full Recovery after Multiple Treatments with Injectable Ice Slurry. J Pain Res 2022; 15:2905-2910. [PMID: 36132994 PMCID: PMC9482954 DOI: 10.2147/jpr.s373421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 08/20/2022] [Indexed: 12/04/2022] Open
Abstract
Background Cryoneurolysis uses tissue cooling as an opioid-sparing, long-lasting treatment for peripheral nerve pain. A nerve-selective method for cryoneurolysis by local injection of ice-slurry was developed to allow cryoneurolysis to be performed with a standard needle and syringe, similar to peripheral nerve blocks. Since the treatment of patients with chronic pain may require repeated injections, we investigated the safety and tolerance of repeated treatments in a rat model. Methods Three repeated ice-slurry treatments, given 6 weeks apart were performed around the rat sciatic nerve. Nerve and surrounding tissues were collected up to 4 months after the third treatment for analysis. Coherent anti-Stokes Raman scattering (CARS) microscopy was used to study effects on myelin sheaths and axon structure. Immunofluorescence (IF) staining was used to study effects on axon density. Hematoxylin and Eosin (H&E) staining was used to examine histologic effects on sciatic nerve and surrounding tissue. Results Histologic and CARS image analysis of nerve tissue collected months after three injections demonstrated recovery of nerve structure, myelin organization and axon density to baseline levels, without any residual inflammation, scarring or neuroma formation. No inflammation or scarring was detected in surrounding skin and muscle tissues. Conclusion Repeated ice-slurry injections cause temporary, nerve-selective and reversible changes in the peripheral nerve. There was no histologic damage to surrounding skin and muscle tissues. Repeated treatments with injectable ice-slurry for cryoneurolysis appear to be safe and well tolerated. Clinical studies for patients with chronic pain are warranted.
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Affiliation(s)
- Sara Moradi Tuchayi
- Wellman Center for Photomedicine, Massachusetts General Hospital, Department of Dermatology, Harvard Medical School, Boston, MA, USA
| | - Ying Wang
- Wellman Center for Photomedicine, Massachusetts General Hospital, Department of Dermatology, Harvard Medical School, Boston, MA, USA
| | - Isaac J Pence
- Wellman Center for Photomedicine, Massachusetts General Hospital, Department of Dermatology, Harvard Medical School, Boston, MA, USA
| | - Alex Fast
- Wellman Center for Photomedicine, Massachusetts General Hospital, Department of Dermatology, Harvard Medical School, Boston, MA, USA
| | - Anat Stemmer-Rachamimov
- Massachusetts General Hospital and Department of Pathology, Harvard Medical School, Boston, MA, USA
| | - Conor L Evans
- Wellman Center for Photomedicine, Massachusetts General Hospital, Department of Dermatology, Harvard Medical School, Boston, MA, USA
| | - R Rox Anderson
- Wellman Center for Photomedicine, Massachusetts General Hospital, Department of Dermatology, Harvard Medical School, Boston, MA, USA
| | - Lilit Garibyan
- Wellman Center for Photomedicine, Massachusetts General Hospital, Department of Dermatology, Harvard Medical School, Boston, MA, USA
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Shinu P, Morsy MA, Nair AB, Mouslem AKA, Venugopala KN, Goyal M, Bansal M, Jacob S, Deb PK. Novel Therapies for the Treatment of Neuropathic Pain: Potential and Pitfalls. J Clin Med 2022; 11:3002. [PMID: 35683390 PMCID: PMC9181614 DOI: 10.3390/jcm11113002] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/20/2022] [Accepted: 05/24/2022] [Indexed: 12/15/2022] Open
Abstract
Neuropathic pain affects more than one million people across the globe. The quality of life of people suffering from neuropathic pain has been considerably declining due to the unavailability of appropriate therapeutics. Currently, available treatment options can only treat patients symptomatically, but they are associated with severe adverse side effects and the development of tolerance over prolonged use. In the past decade, researchers were able to gain a better understanding of the mechanisms involved in neuropathic pain; thus, continuous efforts are evident, aiming to develop novel interventions with better efficacy instead of symptomatic treatment. The current review discusses the latest interventional strategies used in the treatment and management of neuropathic pain. This review also provides insights into the present scenario of pain research, particularly various interventional techniques such as spinal cord stimulation, steroid injection, neural blockade, transcranial/epidural stimulation, deep brain stimulation, percutaneous electrical nerve stimulation, neuroablative procedures, opto/chemogenetics, gene therapy, etc. In a nutshell, most of the above techniques are at preclinical stage and facing difficulty in translation to clinical studies due to the non-availability of appropriate methodologies. Therefore, continuing research on these interventional strategies may help in the development of promising novel therapies that can improve the quality of life of patients suffering from neuropathic pain.
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Affiliation(s)
- Pottathil Shinu
- Department of Biomedical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Mohamed A. Morsy
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (M.A.M.); (A.B.N.); (A.K.A.M.); (K.N.V.)
- Department of Pharmacology, Faculty of Medicine, Minia University, El-Minia 61511, Egypt
| | - Anroop B. Nair
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (M.A.M.); (A.B.N.); (A.K.A.M.); (K.N.V.)
| | - Abdulaziz K. Al Mouslem
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (M.A.M.); (A.B.N.); (A.K.A.M.); (K.N.V.)
| | - Katharigatta N. Venugopala
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (M.A.M.); (A.B.N.); (A.K.A.M.); (K.N.V.)
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, Durban 4000, South Africa
| | - Manoj Goyal
- Department of Anesthesia Technology, College of Applied Medical Sciences in Jubail, Imam Abdul Rahman Bin Faisal University, Jubail 35816, Saudi Arabia;
| | - Monika Bansal
- Department of Neuroscience Technology, College of Applied Medical Sciences in Jubail, Imam Abdul Rahman Bin Faisal University, Jubail 35816, Saudi Arabia;
| | - Shery Jacob
- Department of Pharmaceutical Sciences, College of Pharmacy, Gulf Medical University, Ajman 4184, United Arab Emirates;
| | - Pran Kishore Deb
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Philadelphia University, Amman 19392, Jordan;
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Perry TA, Segal NA. An open-label, single-arm trial of cryoneurolysis for improvements in pain, Activities of Daily Living and Quality of Life in patients with symptomatic ankle osteoarthritis. OSTEOARTHRITIS AND CARTILAGE OPEN 2022; 4:100272. [DOI: 10.1016/j.ocarto.2022.100272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/13/2022] [Accepted: 05/08/2022] [Indexed: 10/18/2022] Open
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Beard NM. Nerve Ablation in the Foot and Ankle. Phys Med Rehabil Clin N Am 2021; 32:803-818. [PMID: 34593145 DOI: 10.1016/j.pmr.2021.05.014] [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] [Indexed: 11/17/2022]
Abstract
Ablation therapies in the foot and ankle are accessible adjuncts to surgery and comprehensive pain management in recalcitrant pain syndromes. Techniques are best applied to individual patient anatomy with strong advantages in a working knowledge of neuromuscular real-time imaging with ultrasound. Interventionists face the unique challenge in this region of preserving balance and proprioception as well as intrinsic muscle function, while optimizing pain relief. A decision-making approach emphasizing selectivity by using regional and target-specific ablations is optimal. This article reviews basic technique, approaches, potential complications, and ultrasound anatomy for a practical introduction to ablation options in the foot and ankle.
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Affiliation(s)
- Nahum M Beard
- Faculty Campbell Clinic Sports Medicine Fellowship, Department of Orthopaedic Surgery and Rehabilitation, Department of Family Medicine, University of Tennessee Health Science Center, 1400 South Germantown Road, Germantown, TN 38138, USA.
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Dalili D, Ahlawat S, Rashidi A, Belzberg AJ, Fritz J. Cryoanalgesia of the anterior femoral cutaneous nerve (AFCN) for the treatment of neuropathy-mediated anterior thigh pain: anatomy and technical description. Skeletal Radiol 2021; 50:1227-1236. [PMID: 33094409 DOI: 10.1007/s00256-020-03650-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 10/12/2020] [Accepted: 10/13/2020] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To describe and illustrate the magnetic resonance imaging (MRI) anatomy of the anterior femoral cutaneous nerve (AFCN) and a new technique for cryoanalgesia of the AFCN for long-term analgesic treatment of recalcitrant AFCN-mediated neuropathic pain. MATERIALS AND METHODS Using a procedural high-resolution MRI technique, we describe the MRI anatomy of the AFCN. Three patients (mean age, 48 years; range, 41-67 years) with selective nerve block-verified recalcitrant AFCN-mediated anterior thigh pain were enrolled to undergo cryoanalgesia of the AFCN. Procedures were performed under MRI guidance using clinical wide-bore MR imaging systems and commercially available cryoablation system with MR-conditional probes. Outcome variables included technical success, clinical effectiveness including symptom relief measured on an 11-point visual analog scale, frequency of complications, and procedure time. RESULTS Procedural MRI allowed to successfully demonstrate the course of the AFCN, accurate cryoprobe placement, and monitoring of the ice ball, which resulted in technically successful iceball growth around the AFCN in all cases. All procedures were clinically effective, with median pain intensity decreasing from 8 (7-9) before the procedure to 1 (0-2) after the procedure. The cryoanalgesia effect persisted during a 12-month follow-up period in all three patients. No major complications occurred. The average total procedure time was 98 min (range, 85-125 min). CONCLUSION We describe the MRI anatomy of the AFCN and a new technique for cryoanalgesia of the AFCN using MRI guidance, which permits identification of the AFCN, selective targeting, and iceball monitoring to achieve long-term AFCN-mediated neuropathic pain relief.
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Affiliation(s)
- Danoob Dalili
- Department of Musculoskeletal Radiology, Nuffield Orthopaedic Centre, Oxford University Hospitals, Oxford, UK.,Musculoskeletal Radiology, The Russell H. Morgan Department of Radiology and Radiological Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Shivani Ahlawat
- Musculoskeletal Radiology, The Russell H. Morgan Department of Radiology and Radiological Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ali Rashidi
- Musculoskeletal Radiology, The Russell H. Morgan Department of Radiology and Radiological Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Allan J Belzberg
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jan Fritz
- Division of Musculoskeletal Radiology, Department of Radiology, New York University Grossman School of Medicine, New York, NY, USA.
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Varshney V, Osborn J, Chaturvedi R, Shah V, Chakravarthy K. Advances in the interventional management of neuropathic pain. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:187. [PMID: 33569489 PMCID: PMC7867895 DOI: 10.21037/atm-20-6190] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The management of neuropathic pain, defined as pain as a result of a lesion or disease in the somatosensory nervous system, continues to be researched and explored. As conventional methods demonstrate limited long-term efficacy, there is a significant need to discover therapies that offer both longitudinal and sustained management of this highly prevalent disease, which can be offered through interventional therapies. Tricyclic antidepressants (TCAs), gabapentinoids, lidocaine, serotonin norepinephrine reuptake inhibitors (SNRIs), and capsaicin have been shown to be the most efficacious pharmacologic agents for neuropathic pain relief. With respect to infusion therapies, the use of intravenous (IV) ketamine could be useful for complex regional pain syndrome, fibromyalgia, and traumatic spinal cord injury. Interventional approaches such as lumbar epidurals are a reasonable treatment choice for up to 3 months of pain relief for patients who failed to respond to conservative treatment, with a “B” strength of recommendation and moderate certainty. Neuroablative procedures like pulsed radiofrequency ablation work by delivering electrical field and heat bursts to targeted nerves or tissues without permanently damaging these structures, and have been recently explored for neuropathic pain relief. Alternatively, neuromodulation therapy is now recommended as the fourth line treatment of neuropathic pain after failed pharmacological therapy but prior to low dose opioids. Finally, the intrathecal delivery of various pharmacologic agents, such as quinoxaline-based kappa-opioid receptor agonists, can be utilized for neuropathic pain relief. In this review article, we aim to highlight advances and novel methods of interventional management of neuropathic pain.
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Affiliation(s)
- Vishal Varshney
- Department of Anesthesia, Providence Healthcare, Vancouver, BC, Canada.,Department of Anesthesiology, Pharmacology, and Therapeutics, University of British Columbia, Vancouver, BC, Canada
| | - Jill Osborn
- Department of Anesthesia, Providence Healthcare, Vancouver, BC, Canada.,Department of Anesthesiology, Pharmacology, and Therapeutics, University of British Columbia, Vancouver, BC, Canada
| | - Rahul Chaturvedi
- School of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Vrajesh Shah
- School of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Krishnan Chakravarthy
- Division of Pain Medicine, Department of Anesthesiology, University of California San Diego, La Jolla, CA, USA.,VA San Diego Health Care, San Diego, CA, USA
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Filippiadis D, Efthymiou E, Tsochatzis A, Kelekis A, Prologo JD. Percutaneous cryoanalgesia for pain palliation: Current status and future trends. Diagn Interv Imaging 2020; 102:273-278. [PMID: 33281081 DOI: 10.1016/j.diii.2020.11.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 12/11/2022]
Abstract
Cryoanalgesia, otherwise termed cryoneurolysis, refers to application of extreme cold upon peripheral nerves for palliation of pain associated to nerve lesions or biomechanical syndromes of neoplastic and non-neoplastic substrate. Application of cryoanalgesia initiates a cascade of pathophysiologic events interrupting nerve conduction of painful stimuli without irreversible nerve damage. Cryoanalgesia is considered a safe procedure with minimal risk of complications when performed with percutaneous approaches under imaging guidance. In the era of an opioid overdose crisis, cryoanalgesia can be proposed as an alternative aiming at controlling pain and improving life quality. Imaging guidance has substituted open surgical and nerve stimulation approaches in nerve identification, significantly contributing to the minimally invasive character of percutaneous approaches. Ultrasound or computed tomography can serve as low cost, ideal guiding techniques due to their abilities for precise anatomic delineation, high spatial resolution and good tissue contrast. The purpose of this review is to become familiar with the most common imaging guided percutaneous cryoanalgesia indications, to learn about different technical considerations during performance providing the current evidence. Controversies concerning products will be addressed.
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Affiliation(s)
- Dimitrios Filippiadis
- Second Radiology Department, University General Hospital "ATTIKON", Medical School, National and Kapodistrian University of Athens, Athens, Greece.
| | - E Efthymiou
- Second Radiology Department, University General Hospital "ATTIKON", Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - A Tsochatzis
- Second Radiology Department, University General Hospital "ATTIKON", Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - A Kelekis
- Second Radiology Department, University General Hospital "ATTIKON", Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - J D Prologo
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, 1364, Clifton road NE, 30322 Atlanta, GA, USA
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Cryoneurolysis and Percutaneous Peripheral Nerve Stimulation to Treat Acute Pain. Anesthesiology 2020; 133:1127-1149. [PMID: 32898231 DOI: 10.1097/aln.0000000000003532] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Two regional analgesic modalities currently cleared by the U.S. Food and Drug Administration hold promise to provide postoperative analgesia free of many of the limitations of both opioids and local anesthetic-based techniques. Cryoneurolysis uses exceptionally low temperature to reversibly ablate a peripheral nerve, resulting in temporary analgesia. Where applicable, it offers a unique option given its extended duration of action measured in weeks to months after a single application. Percutaneous peripheral nerve stimulation involves inserting an insulated lead through a needle to lie adjacent to a peripheral nerve. Analgesia is produced by introducing electrical current with an external pulse generator. It is a unique regional analgesic in that it does not induce sensory, motor, or proprioception deficits and is cleared for up to 60 days of use. However, both modalities have limited validation when applied to acute pain, and randomized, controlled trials are required to define both benefits and risks.
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Abstract
The application of advanced imaging guidance and the interventional radiology skill set has expanded the breadth of nerve and nerve plexus targets in the body for potential cryoneurolysis. Advancement of the basic science supporting cryoneurolysis has further solidified proceduralists' confidence and ability to select and manage patients clinically. As these procedures continue to evolve, a structured approach to the wide variety of indications is necessary.
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Affiliation(s)
- J David Prologo
- Department of Radiology and Imaging Sciences, Division of Interventional Radiology and Image Guided Medicine, Emory University School of Medicine, Atlanta, GA.
| | - Faramarz Edalat
- Department of Radiology and Imaging Sciences, Division of Interventional Radiology and Image Guided Medicine, Emory University School of Medicine, Atlanta, GA
| | - Mohamad Moussa
- Department of Internal Medicine, Emory University School of Medicine, Atlanta, GA
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Prologo JD, Manyapu S, Bercu ZL, Mittal A, Mitchell JW. Percutaneous CT-Guided Cryoablation of the Bilateral Pudendal Nerves for Palliation of Intractable Pain Related to Pelvic Neoplasms. Am J Hosp Palliat Care 2020; 37:619-623. [DOI: 10.1177/1049909119892003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Objectives:The purpose of this report is to describe the effect of computed tomography–guided bilateral pudendal nerve cryoablations on pain and time to discharge in the setting of acute hospitalizations secondary to refractory pelvic pain from cancer.Methods:Investigators queried the medical record for patients who underwent pudendal nerve cryoablation using the Category III Current Procedural Technology code assignment 0442T or Category I code 64640 for cases prior to 2015. The resulting list was reviewed, and procedures performed on inpatients for intractable pelvic pain related to neoplasm were selected. The final cohort was then analyzed with regard to patient demographics, procedure details, technical success, safety, pain scores, and time to discharge.Results:Ten patients underwent cryoablation by 3 operators for palliation of painful pelvic neoplasms between June 2014 and January 2019. All probes were satisfactorily positioned and freeze cycles undertaken without difficulty. There were no procedure-related complications or adverse events. The mean difference in pre- and posttreatment worst pain scores was significant (n = 5.20, P = .003). The mean time to discharge following the procedure was 2.3 days.Conclusion:Computed tomography–guided percutaneous cryoablation of the bilateral pudendal nerves may represent a viable option in the setting of acute hospitalization secondary to intractable pain in patients with pelvic neoplasms.
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Affiliation(s)
- John David Prologo
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - Sivasai Manyapu
- Department of Interventional Radiology, Emory Johns Creek Hospital, GA, USA
| | - Zachary L. Bercu
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | | | - Jason W. Mitchell
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA
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Bonham LW, Herati AS, McCarthy EF, Dellon AL, Fritz J. Diagnostic and interventional magnetic resonance neurography diagnosis of brachytherapy seed-mediated pudendal nerve injury: a case report. Transl Androl Urol 2020; 9:1442-1447. [PMID: 32676429 PMCID: PMC7354307 DOI: 10.21037/tau.2020.03.22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Injury to the pudendal nerve in men presents with pain, paresthesia, or numbness of the perineum, and/or scrotum, and/or penis. There is evidence implicating the brachytherapy seeds used to treat prostate cancer as source of pudendal nerve injury. Compared to surgical prostatectomy, brachytherapy has the advantage of being less invasive, but seeds may not only lead to well-established complications such as urinary, bowel, and erectile dysfunction, but also injury to the sensory branches of the pudendal nerve. We report and document a case of pudendal nerve injury secondary to brachytherapy seeds diagnosed with magnetic resonance (MR) neurography, nerve blocks, and histopathological examination; and successful treatment via sensory branch neurectomy.
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Affiliation(s)
- Luke W Bonham
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Amin S Herati
- Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Edward F McCarthy
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - A Lee Dellon
- Departments of Plastic Surgery and Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jan Fritz
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Department of Radiology, New York University School of Medicine and Langone Heath, New York, NY, USA
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Daubié S, Pilleul F, Thivolet A, Kalenderian AC, Cuinet M, Ricoeur A, Schiffler C, Bouhamama A, Chvetzoff G, Mastier C. Cryoneurolysis in Patients with Dorsal Neuropathic Pain Secondary to Tumor Invasion. J Vasc Interv Radiol 2020; 31:917-924. [PMID: 32376175 DOI: 10.1016/j.jvir.2020.01.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 12/26/2019] [Accepted: 01/20/2020] [Indexed: 12/15/2022] Open
Abstract
PURPOSE To evaluate the safety and efficacy of cryoneurolysis (CNL) in patients with refractory thoracic neuropathic pain related to tumor invasion. MATERIALS AND METHODS Between January 2013 and May 2017, this single-center and retrospective study reviewed 27 computed tomography-guided CNLs performed on 26 patients for refractory thoracic neuropathic pain related to tumor invasion. Patients with cognitive impairment were excluded. Pain levels were recorded on a visual analog scale (VAS) before the procedure, on days 1, 7, 14, 28 and at each subsequent follow-up appointment. CNL was clinically successful if the postprocedural VAS decreased by 3 points or more. To determine the duration of clinical success, the end of pain relief was defined as either an increased VAS of 2 or more points, the introduction of a new analgesic treatment, a death with controlled pain, or for lost to follow-up patients, the latest follow-up appointment date with controlled pain. RESULTS Technical success rate was 96.7% and clinical success rate was 100%. Mean preprocedural pain score was 6.4 ± 1.7 and decreased to 2.4 ± 2.4 at day 1; 1.8 ± 1.7 at day 7 (P < .001); 3.3 ± 2.5 at day 14; 3.4 ± 2.6 at day 28 (P < .05). The median duration of pain relief was 45 days (range 14-70). Two minor complications occurred. CONCLUSIONS Cryoneurolysis is a safe procedure that significantly decreased pain scores in patients with thoracic neuropathic pain related to tumor invasion, with a median duration of clinical success of 45 days.
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Affiliation(s)
- Sophie Daubié
- Interventional Radiology, Centre Léon Bérard, 28 promenade Bullukian, 69008 Lyon, France.
| | - Frank Pilleul
- CREATIS, UMR CNRS (Unités Mixtes de Recherche Centre National de Recherche Scientifique) 5220 - INSERM 1206, Lyon, France
| | - Arnaud Thivolet
- Interventional Radiology, Centre Léon Bérard, 28 promenade Bullukian, 69008 Lyon, France
| | | | - Marie Cuinet
- Interventional Radiology, Centre Léon Bérard, 28 promenade Bullukian, 69008 Lyon, France
| | - Alexis Ricoeur
- Interventional Radiology, Centre Léon Bérard, 28 promenade Bullukian, 69008 Lyon, France
| | - Camille Schiffler
- Interventional Radiology, Centre Léon Bérard, 28 promenade Bullukian, 69008 Lyon, France
| | - Amine Bouhamama
- Interventional Radiology, Centre Léon Bérard, 28 promenade Bullukian, 69008 Lyon, France
| | - Gisele Chvetzoff
- DISSPO (Département des Soins de Support du Patient en Oncologie), Centre Léon Bérard, 28 promenade Bullukian, 69008 Lyon, France
| | - Charles Mastier
- Interventional Radiology, Centre Léon Bérard, 28 promenade Bullukian, 69008 Lyon, France
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Ramaswamy RS, Tiwari T, Darcy MD, Kim SK, Akinwande O, Dasgupta N, Guevara CJ. Cryoablation of low-flow vascular malformations. ACTA ACUST UNITED AC 2020; 25:225-230. [PMID: 31063139 DOI: 10.5152/dir.2019.18278] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
PURPOSE We aimed to evaluate the safety and effectiveness of cryoablation in the treatment of low-flow malformations, specifically venous malformation (VM) and fibroadipose vascular anomaly (FAVA). METHODS We conducted a retrospective review of 11 consecutive patients with low-flow malformations (14 lesions; 9 VM, 5 FAVA), median lesion volume 10.8 cm3, (range, 1.8-55.6 cm3) with a median age of 19 years (range, 10-50 years) who underwent cryoablation to achieve symptomatic control. Average follow-up was at a median of 207 days postprocedure (range, 120-886 days). Indications for treatment included focal pain and swelling. Technical success was achieved if the cryoablation ice ball covered the region of the malformation that corresponded to the patient's symptoms. Clinical success was considered complete if all symptoms resolved and partial if some symptoms persisted but did not necessitate further treatment. RESULTS The technical success rate was 100%. At 1-month follow-up, 13 of 14 lesions (93%) had a complete response and one (7%) had a partial response. At 6-month follow-up 12 of 13 (92%) had a complete response and 1 (8%) had a partial response. A total of 6 patients underwent primary cryoablation. Out of 9 VM cases, 7 had prior sclerotherapy and 2 had primary cryoablation. Out of the 5 FAVA cases, 1 had prior sclerotherapy and the remaining 4 cases underwent primary cryoablation. There were 3 minor complications following cryoablation including 2 cases of skin blisters and 1 case of transient numbness. These complications resolved with conservative management. CONCLUSION Cryoablation is safe and effective in the treatment of low-flow vascular malformations, either after sclerotherapy or as primary treatment.
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Affiliation(s)
- Raja S Ramaswamy
- Department of Radiology, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Tatulya Tiwari
- Department of Radiology, Division of Endovascular Surgery and Interventional Radiology, Lexington Veterans Affairs (VA) Medical Center, Lexington, Kentucky, USA
| | - Michael D Darcy
- Department of Radiology, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Seung K Kim
- Department of Radiology, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Olaguoke Akinwande
- Department of Radiology, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Niloy Dasgupta
- Department of Radiology, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Carlos J Guevara
- Department of Diagnostic and Interventional Radiology, University of Texas Health Center, Houston, Texas, USA
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Bittman RW, Behbahani K, Gonzalez F, Prologo JD. Interventional Cryoneurolysis: What Is the Same, What Is Different, What Is New? Semin Intervent Radiol 2019; 36:374-380. [PMID: 31798210 PMCID: PMC6887526 DOI: 10.1055/s-0039-1696705] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Cryoneurolysis is the deliberate application of cold temperatures to nerves for therapeutic purposes. The idea of treating pain with this technique is thousands of years old and has evolved over time through the application of surgical techniques, nerve stimulation and/or landmark guidance, and through device development. Recent integration of the interventional radiology skill set to this space has unlocked a myriad of opportunities-primarily through a unique ability to percutaneously access deep structures in the body with accuracy and precision, and the capacity to monitor ablation zones. Understanding of the specific neurohistological process that follows targeted cryoneurolysis leads to new options for treating patients in pain without drugs and opens doors for the potential modification of a wide array of disease states.
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Affiliation(s)
- Ross W. Bittman
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia
| | - Keywan Behbahani
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia
| | - Felix Gonzalez
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia
| | - J. David Prologo
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia
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Prologo JD, Lin E, Horesh Bergquist S, Knight J, Matta H, Brummer M, Singh A, Patel Y, Corn D. Percutaneous CT-Guided Cryovagotomy in Patients with Class I or Class II Obesity: A Pilot Trial. Obesity (Silver Spring) 2019; 27:1255-1265. [PMID: 31339003 DOI: 10.1002/oby.22523] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 04/13/2019] [Indexed: 12/27/2022]
Abstract
OBJECTIVE This study evaluated the safety of percutaneous CT-guided cryoablation of the vagus nerve (percutaneous cryovagotomy) in participants with class I or class II obesity. METHODS The study was an open-label, single-group, prospective pilot investigation designed around safety-related stopping criteria. Twenty participants with 30 > BMI > 37 underwent percutaneous cryovagotomy with follow-up visits at day 7, 45, 90, and 180. Data related to adverse events, technical success, weight loss, quality of life, dietary intake, global impressions of hunger change, activity, and body composition were analyzed. RESULTS The procedural technical success rate was 100%. There were no adverse events in 19 participants who completed the trial. Ninety-five percent of patients reported decreased appetite following the procedure, and reductions in mean absolute weight and BMI were observed at all time points. The mean quality of life and activity scores improved from baseline to 6 months post procedure, and mean caloric intake and overall body fat decreased over the same period. CONCLUSIONS Percutaneous CT-guided cryovagotomy is feasible and was tolerated without complications or adverse events in this cohort. Quantitative preliminary data from this pilot investigation inform the design of a larger prospective randomized clinical trial.
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Affiliation(s)
- J David Prologo
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Edward Lin
- Division of General and Gastrointestinal Surgery, Department of Surgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | | | - Jackie Knight
- Department of Radiology and Imaging Sciences, Emory Healthcare, Atlanta, Georgia, USA
| | - Hazem Matta
- Radiology Regional Center, Fort Myers, Florida, USA
| | - Marjin Brummer
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Arvinpal Singh
- Division of Bariatric Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Yogi Patel
- Department of Bioengineering and Neuroengineering, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - David Corn
- Department of Periodontics and Endodontics, The State University of New York, Buffalo, New York, USA
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MR Imaging-Guided Cryoneurolysis of the Sural Nerve. J Vasc Interv Radiol 2018; 29:1622-1624. [DOI: 10.1016/j.jvir.2018.06.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/29/2018] [Accepted: 06/04/2018] [Indexed: 01/09/2023] Open
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