A Review of Stellate Ganglion Block as an Adjunctive Treatment Modality.

Peripheral nerve blocks are becoming increasingly used as adjunctive treatment modalities for a variety of conditions refractory to medical management. Right or left stellate ganglion blocks (SGB) are a specific type of peripheral nerve block that target the sympathetic blockade of neuronal impulses using the injection of local anesthetic and steroids into nerve bundles in the cervical area. This review article is intended to summarize the common uses of stellate ganglion blocks and explain the procedural technique, which has evolved with technological advances in ultrasonography. The similarities between these disease processes are centered around sympathetic hyperactivity. This sympathetic overdrive state is created by increased levels of nerve growth factor (NGF), which causes a cascade of sympathetic sprouting resulting in increased norepinephrine (NE) systemically. Reversal of this cascade by local anesthetic injection into the stellate ganglion thereby reduces NGF and sympathetic sprouting subsequently lowering overall norepinephrine levels. This is the unifying theory by which SGB is able to provide resolution for the varied clinical conditions described in this article.  This review article discusses the physiology of several conditions where stellate ganglion blocks are being investigated as an adjunct treatment modality, including anosmia, PTSD, long-COVID, chronic fatigue syndrome, menopausal hot flashes, and ventricular tachyarrhythmias. Overall, the current literature supporting the use of stellate ganglion blocks for several esoteric conditions is limited; however, case reports to date have shown promising evidence-based results supporting their use as an adjunctive treatment among patients with refractory symptoms to existing treatment algorithms. In conclusion, SGB should be considered among patients with refractory symptoms for medical management in the conditions discussed in this article. Further research is needed to delineate which patients will benefit from the use of SGB, the use of subsequent blocks and timelines in between injections, and unilateral versus bilateral blockade.

Peripheral Nerve Block Practice in Portugal: A National Survey.

Regional anesthesia (RA) has several benefits and its use has increased with the advent of ultrasound-guided techniques. Opioid-sparing anesthesia and reduced use of general anesthesia are some of the mainstay advantages of RA. Although anesthetic practices differ deeply between countries, RA has assumed a crucial role in the daily practice of anesthesiologists, particularly during the COVID-19 pandemic period. This cross-sectional study provides an overview of peripheral nerve block (PNB) techniques performed in Portuguese hospitals. An online survey was reviewed by members of Clube de Anestesia Regional (CAR/ESRA Portugal) and then sent to a national mailing list of anesthesiologists. The survey focused on specific topics related to RA techniques such as the importance of training and experience, and the relevance of logistical limitations during the execution of RA. All data were collected anonymously and included in a Microsoft Excel (Microsoft Corp., Redmond, WA, USA) database, for further analysis. A total of 335 valid answers were obtained. All participants considered RA as a key competence in their daily practice. Half of those inquired performed PNB techniques once to twice per week. The main limitations identified for performing RA in Portuguese hospitals were the absence of block rooms and insufficiently trained personnel for the appropriate and safe execution of these techniques. This survey provides a comprehensive overview of RA in the Portuguese setting and could serve as a baseline for further studies.

Review and practical recommendations for peripheral nerve block during Coronavirus Disease-2019 pandemic

Coronavirus disease-2019 (COVID-19) was announced as a global pandemic by the World Health Organization on March 11, 2020 due to its rapid spread and multinational involvement. Operating room preparedness in these times should encompass increased vigilance, protective measures, and alternative procedures in an effort to mitigate the spread from a proven or suspected case. Specifically, by reducing aerosol-generating procedures as in general anesthesia, anesthesiologists can decrease exposure to patient's respiratory secretions and transmission of virus to the health-care professional and other patients. The Interoperability Standards Advisory in its advisory has also recommended regional anesthesia over general anesthesia as one of the steps that can reduce aerosol spread. Further, to restrict airway manipulation, peripheral nerve blocks (PNB) should be considered whenever possible in suspected or confirmed cases of COVID-19 undergoing surgery. PNB has the advantage of maintenance of respiratory functions, prevention of aerosolization, and so preventing viral transmission. This article explores the practical information and suggested measures for conducting PNB in COVID-19 patients with suggestions toward resource planning, clinical environment modification, equipment preparation, supply of drugs, choosing of correct personal protective equipment, safe PNB procedures, anesthesia monitoring, and postanesthetic care. By addressing these issues, infection control during anesthesia can be achieved and which is essential in the present era with emerging infection and novel pathogens such as coronavirus 2 causing the severe acute respiratory syndrome. Thus, framing a structured protocol for PNB among these patients is essential for the best perioperative outcome. © 2022 Medical Journal of Dr. D.Y. Patil Vidyapeeth ;Published by Wolters Kluwer - Medknow

Regional Technique Provides Complete Surgical Anesthesia for Above-the-Knee Amputation: A Viable Alternative to General Endotracheal Anesthesia in a Time of COVID-19.

In the initial phase of the coronavirus disease 2019 (COVID-19) pandemic, laboratory test shortages made it impossible to definitively identify patients with active COVID-19 infection or asymptomatic carriers. Without diagnostic certainty, it was imperative to proceed with caution when performing aerosol-generating procedures; this meant that anesthesiologists needed to make conscious decisions to avoid airway manipulation for procedures when it was not completely necessary. This case report describes a regional anesthetic technique that was used as the primary anesthetic for an urgent above-the-knee amputation in a patient with a history of respiratory issue of unknown etiology.

Regional anesthesia during COVID-19 pandemic: A minireview and practical recommendations

Background and aims: Coronavirus disease 2019 (COVID-19) has posed many challenges for healthcare workers around the world. This study aims to present the most appropriate and evidence-based scientific advice for safe regional anesthesia practice during the COVID-19 pandemic. Methods: To perform regional anesthesia during respiratory disease outbreaks, several databases were investigated, including PubMed, Google Scholar, Up-to-date, and ScienceDirect. Searches were in English during a timeframe spanning from February 15, 2019, until February 15, 2021, and the applied keywords were “COVID-19 anesthesia”, “surgery”, and “operating room” Results: We have focused on definite areas such as workforce and resource planning, modification of clinical setting, preparation of equipment, supplies, and medications, selection of proper personal protective equipment (PPE), cardiorespiratory monitoring of the patient, and sedation and oxygen therapy. Other fields were assessing safe regional anesthesia techniques and monitoring during anesthesia, postanesthesia care, and follow-ups. In these recommendations, keeping the patients safe while protecting healthcare providers from potential exposure to infection is of particular interest. Conclusion: The safety of healthcare workers and patients during the anesthesia management of suspected and positive COVID-19 cases is of utmost importance. Although there is limited evidence regarding performing regional anesthesia, these presented suggestions summarize the best accessible data and explain some doubts in this respect. [ FROM AUTHOR] Copyright of Journal of Shahrekord University of Medical Sciences is the property of Journal of Shahrekord University of Medical Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full . (Copyright applies to all s.)

Regional Anaesthetic Techniques and Their Implications During the COVID Pandemic.

The current pandemic has highlighted the need to protect both patients and medical staff. The increased use of regional anaesthesia as a primary anaesthetic modality for operations and other invasive procedures has limited the number of aerosol-generating procedures performed during general anaesthesia. Its use is further characterized by decreases in postoperative pain and length of hospitalization. This article provides an overview of regional anaesthetic techniques (peripheral nerve locks, epidural and spinal anaesthesia) and their uses during the COVID pandemic.

Regional anesthesia in the time of COVID-19: a minireview.

The treatment of surgical patients who are confirmed or suspected of coronavirus disease 2019 (COVID-19) is a challenge for all anesthesiologists. The safety of both patients and healthcare workers should be taken into consideration when performing anesthesia management for patients with COVID-19. General anesthesia requiring airway intervention may exacerbate COVID-19 pneumonia, and aerosol generation during airway intervention risks COVID-19 transmission to medical staff. However, regional anesthesia is not an aerosol-generating procedure. The neuraxial anesthesia may have little adverse influence on clinical outcomes in patients with COVID-19 after reviewing previous case reports. Regional anesthesia may have some advantages over general anesthesia for this group of patients, but unplanned conversion to general anesthesia during surgery is not preferred. Thus, careful consideration should be given to ensure that the surgery is performed entirely under regional anesthesia. The use of ultrasound guidance and the performance by an experienced physician may reduce the incidence of failed block and complications. The use of long-acting local anesthetic prolongs the anesthetic effect of regional anesthesia. Besides, a safe and sufficient dose of local anesthetic should be used.