Post-dural Puncture Headache After Removal of Trail Spinal Cord Stimulator Leads: A Case Report.

Spinal cord stimulators (SCS) have been an invaluable resource in treating chronic pain pathologies such as failed back surgery syndrome, complex regional pain syndrome, neuropathic pain, and leg ischemia. Post-dural puncture headaches (PDPH) are a common phenomenon that happens when the dura is compromised. It has been seen with permanent SCS placement, but less commonly reported with SCS trail leads. We present a case of a patient who developed PDPH symptoms, not after initial trial leads placement but upon their removal. This case not only illustrates that dural compromise can occur when the placement of the leads is correct with confirmatory imaging, but also the leads themselves can contribute to masking the defect.

Dural Puncture During Spinal Cord Stimulator Lead Insertion: Analysis of Practice Patterns.

Background: Spinal cord stimulation (SCS) is an important modality for intractable pain not amenable to less conservative measures. During percutaneous SCS lead insertion, a critical step is safe access to the epidural space, which can be complicated by a dural puncture. Objectives: In this review, we present and analyze the practices patterns in the event of a dural puncture during a SCS trial or implantation. Methods: We conducted a survey of the practice patterns regarding spinal cord stimulation therapy. The survey was administered to members of the Spine Intervention Society and American Society of Regional Anesthesia specifically inquiring decision making in case of inadvertent dural puncture during spinal cord stimulator lead insertion. Results: A maximum of 193 responded to a question regarding dural punctures while performing a SCS trial and 180 responded to a question regarding dural punctures while performing a SCS implantation. If performing a SCS trial and a dural puncture occurs, a majority of physicians chose to continue the procedure at a different level (56.99%), followed by abandoning the procedure (27.98%), continuing at the same level (10.36%), or choosing another option (4.66%). Similarly, if performing a permanent implantation and a dural puncture occurs, most physicians chose to continue the procedure at a different level (61.67%), followed by abandoning the procedure (21.67%), continuing at the same level (10.56%), or choosing another option (6.11%). Conclusions: Whereas the goals of the procedure would support abandoning the trial but continuing with the permanent in case of inadvertent dural puncture, we found that decision choices were minimally influenced by whether the dural puncture occurred during the trial or the permanent implant. The majority chose to continue with the procedure at a different level while close to a quarter chose to abandon the procedure. This article sets a time stamp in practice patterns from March 20, 2020 to June 26, 2020. These results are based on contemporary SCS practices as demonstrated by this cohort, rendering the options of abandoning or continuing after dural puncture as reasonable methods. Though more data is needed to provide a consensus, providers can now see how others manage dural punctures during SCS procedures.

Spinal Cord Stimulation for Post Total Knee Replacement Pain: A Case Series.

It is not uncommon for orthopedic patients to experience pain following a total knee replacement (TKR). Use of oral pain medications, nerve blocks, and periarticular injections are implemented to provide multimodal analgesia and to reduce postoperative chronic pain. Spinal cord stimulation (SCS) can also be used to control pain in patients who are refractory to conservative measures. Few studies have explored this possibility for patients with chronic pain status post TKR. We present three cases that demonstrate the effectiveness of SCS in this challenging patient population.

Spinal Cord Stimulator Therapy as a Last Resort Option in Refractory Neuropathic Groin Pain: A Case Report.

A spinal cord stimulator (SCS) is an excellent therapeutic strategy for many refractory chronic pain cases. They have a multi-faceted effect in providing relief in such indicated cases that include complex regional pain syndrome (CRPS) or failed back surgery syndrome (FBSS). However, if a patient has chronic intractable neuropathic pain outside the standard indications for SCS, can a case be made for trialing SCS as a last resort option? We describe a case where a patient with neuropathic groin pain, refractory to numerous types of procedures and non-interventional modalities, successfully underwent SCS therapy as a last resort option.

Intraoperative Administration of Dexmedetomidine and Dexamethasone in Local Anesthetic Infiltration to Improve Postoperative Pain Control After Posterior Cervical Fusion.

Dexmedetomidine, a selective and potent α2-adrenoceptor agonist, is used for its anxiolytic, sedative, and analgesic properties. Dexamethasone is a high-potency, long-acting glucocorticoid that has been shown to provide analgesic and anti-inflammatory effects. At present, little has been published with regard to the effectiveness of these drugs as dual agents with local anesthetics for analgesia. In this report, a case of a 50-year-old man who underwent a cervical spine orthopedic procedure is described, in which an intraoperative injection of ropivacaine was administered with the adjuvants dexmedetomidine and dexamethasone, providing extended postoperative pain relief. In summary, we present a patient who had an injection of ropivacaine with dexmedetomidine and dexamethasone into the erector spinae muscles in the cervical region, which provided improvement in postoperative pain and reduced opioid consumption for five days post-surgery, demonstrating additive and/or synergistic effects beyond the normal local anesthetic duration.

Dual Enkephalinase Inhibitors and Their Role in Chronic Pain Management.

PURPOSE OF REVIEW: Dual enkephalinase inhibitors (DENKIs) are pain medications that indirectly activate opioid receptors and can be used as an alternative to traditional opioids. Understanding the physiology of enkephalins and their inhibitors and the pharmacology of these drugs will allow for proper clinical application for chronic pain patients in the future. RECENT FINDINGS: DENKIs can be used as an alternative mode of analgesia for patients suffering from chronic pain by preventing the degradation of endogenous opioid ligands. By inhibiting the two major enkephalin-degrading enzymes (neprilysin and aminopeptidase N), DENKIs can provide analgesia with less adverse effects than nonendogenous opioids. The purpose of this paper is to review the current literature investigating DENKIs and explore their contribution to chronic pain management.

Decision aids in anesthesia: do they help?

PURPOSE OF REVIEW: Patient decision aids are educational tools used to assist patients and clinicians in healthcare decisions. As healthcare moves toward patient-centered care, these tools can provide support to anesthesiologists by facilitating shared decision-making. RECENT FINDINGS: Recent research has shown that patient decision aids are beneficial in the clinical setting for patients and physicians. Studies have shown that patients feel better informed, have better knowledge, and have less anxiety, depression, and decisional conflict after using patient decision aids. In addition, a structured approach for the development of patient decision aids in the field of anesthesia has been established. SUMMARY: Patient decision aids can support patient-centered care delivery and shared decision-making, especially in the field of anesthesia. Current research involves implementing the use of patient decision aids in the discussion for monitored anesthesia care. Further development of quality metrics is needed to improve the decision aids and maximize decision quality.

Concepts for the Development of Anesthesia-Related Patient Decision Aids.

Patient decision aids are educational tools used by health care providers to assist patients in choosing their treatment and care. The use of anesthesia-related patient decision aids can help practitioners provide patient-centered care by facilitating shared decision-making. The benefits of these aids have been well documented, yet a structured approach for developing patient decision aids in anesthesia has not been well established. Educating patients on various anesthesia-related options is paramount in their decision-making, yet accessible and validated resources are limited. In addition, many limitations exist with current patient decision aids that must be addressed. We have reviewed multiple processes for developing decision aids and have suggested a structured approach to their creation. We address the common limitations of current patient decision aids and provide improvements to the developmental process. Improvements include increasing patient input during development, thoroughly evaluating data included in the aids, and integrating a cyclic review of the aids before and after their use. Using the provided developmental process and checklist, anesthesia providers can create evidence-based patient decision aids in a standardized manner. It is important to evaluate decision aids and measure their decision quality, or patient-centeredness, to further improve them and maximize their effectiveness. Moving forward, development of proper metrics for patient participation and decision quality are required.