Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 60
Filtrar
Mais filtros

Base de dados
País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
Curr Pain Headache Rep ; 28(1): 1-9, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37855944

RESUMO

PURPOSE OF REVIEW: Spinal cord stimulation has been increasing in influence as an option to regulate pain, especially in the chronic pain patient population. However, even with the numerous changes made to this technology since its inception, it is still prone to various complications such as hardware issues, neurological injury/epidural hematoma, infections, and other biological concerns. The purpose of this article is to thoroughly review and evaluate literature pertaining to the complications associated with percutaneous spinal cord stimulation. RECENT FINDINGS: Lead migration is generally the most common complication of percutaneous spinal cord stimulation; however, recent utilization of various anchoring techniques has been discussed and experienced clinical success in decreasing the prevalence of lead migration and lead fractures. With newer high-frequency systems gaining traction to improve pain management and decrease complications as compared to traditional systems, rechargeable implantable pulse generators have been the preferred power source. However, recent findings may suggest that these rechargeable implantable pulse generators do not significantly increase battery life as much as was proposed. Intraoperative neuromonitoring has seen success in mitigating neurological injury postoperatively and may see more usage in the future through more testing. Though the occurrence of infection and biological complications, including dural puncture and skin erosion, has been less frequent over time, they should still be treated in accordance with established protocols. While many complications can arise following percutaneous spinal cord stimulator implantation, the procedure is less invasive than open implantation and has seen largely positive patient feedback. Hardware complications, the more common issues that can occur, rarely indicate a serious risk and can generally be remedied through reoperation. However, less common cases such as neurological injury, infections, and biological complications require prompt diagnosis to improve the condition of the patient and prevent significant damage.


Assuntos
Estimulação da Medula Espinal , Humanos , Eletrodos Implantados/efeitos adversos , Estimulação da Medula Espinal/efeitos adversos , Estimulação da Medula Espinal/métodos , Manejo da Dor/métodos , Procedimentos Neurocirúrgicos/métodos , Medula Espinal
2.
Pain Pract ; 2024 Mar 30.
Artigo em Inglês | MEDLINE | ID: mdl-38553945

RESUMO

INTRODUCTION: The Accreditation Council for Graduate Medical Education (ACGME) approved the first pain medicine fellowship programs over three decades ago, designed around a pharmacological philosophy. Following that, there has been a rise in the transition of pain medicine education toward a multidisciplinary interventional model based on a tremendous surge of contemporaneous literature in these areas. This trend has created variability in clinical experience and education amongst accredited pain medicine programs with minimal literature evaluating the differences and commonalities in education and experience of different pain medicine fellowships through Program Director (PD) experiences. This study aims to gather insight from pain medicine fellowship program directors across the country to assess clinical and interventional training, providing valuable perspectives on the future of pain medicine education. METHODS: This study involved 56 PDs of ACGME-accredited pain fellowship programs in the United States. The recruitment process included three phases: advanced notification, invitation, and follow-up to maximize response rate. Participants completed a standard online questionnaire, covering various topics such as subcategory fields, online platforms for supplemental education, clinical experience, postgraduate practice success, and training adequacy. RESULTS: Surveys were completed by 39/56 (69%) standing members of the Association of Pain Program Directors (APPD). All PDs allowed fellows to participate in industry-related and professional society-related procedural workshops, with 59% encouraging these workshops. PDs emphasized the importance of integrity, professionalism, and diligence for long-term success. Fifty-four percent of PDs expressed the need for extension of fellowship training to avoid supplemental education by industry or pain/spine societies. CONCLUSION: This study highlights the challenge of providing adequate training in all Pain Medicine subtopics within a 12-month pain medicine fellowship. PDs suggest the need for additional training for fellows and discuss the importance of curriculum standardization.

3.
Curr Pain Headache Rep ; 27(11): 747-755, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37747621

RESUMO

PURPOSE OF REVIEW: Rib fractures are a common traumatic injury that has been traditionally treated with systemic opioids and non-opioid analgesics. Due to the adverse effects of opioid analgesics, regional anesthesia techniques have become an increasingly promising alternative. This review article aims to explore the efficacy, safety, and constraints of medical management and regional anesthesia techniques in alleviating pain related to rib fractures. RECENT FINDINGS: Recently, opioid analgesia, thoracic epidural analgesia (TEA), and paravertebral block (PVB) have been favored options in the pain management of rib fractures. TEA has positive analgesic effects, and many studies vouch for its efficacy; however, it is contraindicated for many patients. PVB is a viable alternative to those with contraindications to TEA and exhibits promising outcomes compared to other regional anesthesia techniques; however, a failure rate of up to 10% and adverse complications challenge its administration in trauma settings. Serratus anterior plane blocks (SAPB) and erector spinae blocks (ESPB) serve as practical alternatives to TEA or PVB with lower incidences of adverse effects while exhibiting similar levels of analgesia. ESPB can be performed by trained emergency physicians, making it a feasible procedure to perform that is low-risk and efficient in pain management. Compared to the other techniques, intercostal nerve block (ICNB) had less analgesic impact and required concurrent intravenous medication to achieve comparable outcomes to the other blocks. The regional anesthesia techniques showed great success in improving pain scores and expediting recovery in many patients. However, choosing the optimal technique may not be so clear and will depend on the patient's case and the team's preferences. The peripheral nerve blocks have impressive potential in the future and may very well surpass neuraxial techniques; however, further research is needed to prove their efficacy and weaknesses.


Assuntos
Bloqueio Nervoso , Fraturas das Costelas , Humanos , Fraturas das Costelas/complicações , Fraturas das Costelas/tratamento farmacológico , Analgésicos/uso terapêutico , Manejo da Dor/métodos , Bloqueio Nervoso/métodos , Dor/tratamento farmacológico , Analgésicos Opioides , Dor Pós-Operatória/tratamento farmacológico
4.
Curr Pain Headache Rep ; 26(2): 145-149, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35076875

RESUMO

PURPOSE OF REVIEW: Sedation for pain medicine procedures provides a unique challenge for proceduralists. Many patients dealing with pain are on chronic opioids and require higher doses of sedation for adequate procedural comfort. Chronic pain patients have various comorbidities including depression, neuropsychiatric disorders, peripheral vascular disease, and renal impairment, among others [1]. These confounding variables make the overall treatment of their pain condition much more challenging. RECENT FINDINGS: For patients requiring intravenous (IV) sedation for their pain procedures, the constant need for access may render them a "difficult stick" over time. Another factor to consider is the increasing requirements by the hospital system needing IV sedatives and analgesics in the intensive care unit and operating rooms during the coronavirus (COVID-19) pandemic. Sublingual sufentanil (SST) provides an excellent analgesic option for patients undergoing interventional pain procedures. The use of SST allows hospitals to preserve IV agents for more critical areas and mitigates the difficulty of obtaining IV access in patients.


Assuntos
COVID-19 , Sufentanil , Analgésicos Opioides/uso terapêutico , Humanos , Dor Pós-Operatória/tratamento farmacológico , SARS-CoV-2 , Sufentanil/uso terapêutico , Comprimidos
5.
Curr Pain Headache Rep ; 26(12): 877-882, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36454429

RESUMO

Spinal cord stimulator (SCS) is approved to treat various pain conditions and is commonly seen in the chronic pain patient population. Due to the nature of the device and its location, infections associated with SCS have a particularly high morbidity. According to post-market data and medical device reports, 87% of patients receiving SCS implants were given perioperative antibiotics as the implantable neurostimulator or receiver pocket serve as the most common sites of infection. The most common antibiotics for surgical prophylaxis given are first-generation cephalosporins (cefalexin, cefazolin) at the time of implantation. If deep infection is suspected, imaging in the form of CT scan should be obtained as physical exam is not always sufficient. For infections involving the epidural space, vertebra, or intervertebral discs, MRI is the preferred imaging modality. If meningitis is suspected, a lumbar puncture is recommended. Positive cultures can help guide antibiotic therapy.


Assuntos
Dor Crônica , Estimulação da Medula Espinal , Humanos , Estimulação da Medula Espinal/métodos , Dor Crônica/terapia , Coluna Vertebral , Antibacterianos/uso terapêutico , Medula Espinal , Estudos Retrospectivos
6.
Pain Med ; 21(8): 1718-1728, 2020 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-32379882

RESUMO

BACKGROUND: Pain fellowship programs are facing unique challenges during the COVID-19 pandemic. Restrictions by state governments and the Centers for Disease Control and Prevention have resulted in a rapidly changing and evolving learning environment for today's fellows. Innovative solutions must be sought to maintain proper education and ensure the well-being of our trainees. METHODS: We assembled a panel of pain program directors who serve as officers/board members of the Association of Pain Program Directors, offering guidance and recommendations to pain fellowship directors nationwide. Panel members evaluate the best available evidence and expert opinion on use of remote and virtual platforms in clinical care, adaptability to alterations in clinic and referral management, and provide guidance on postgraduate impact. CONCLUSIONS: The country is in the midst of an unprecedented pandemic. The impact on pain management fellowships has been significant and will likely last for months, resulting in extraordinary challenges to the administration of pain fellowship programs and the education of our fellows. Several strategies will help address these challenges, including employing telehealth capabilities to continue clinical experiences and providing trainees with opportunities to continue their professional growth beyond fellowship completion. Together, we can implement innovative solutions to overcome these challenges.


Assuntos
Infecções por Coronavirus , Educação de Pós-Graduação em Medicina , Manejo da Dor , Pandemias , Pneumonia Viral , Betacoronavirus , COVID-19 , Educação de Pós-Graduação em Medicina/métodos , Educação de Pós-Graduação em Medicina/organização & administração , Bolsas de Estudo , Humanos , Satisfação no Emprego , Mentores , SARS-CoV-2 , Estados Unidos , Fluxo de Trabalho
7.
Pain Pract ; 20(7): 777-779, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32281719

RESUMO

When performing lumbar epidural steroid injection on obese patients, needle placement can be challenging due to the difficulty in estimating the appropriate needle length to utilize. Often times, the standard 3.5-inch Tuohy needle is too short to reach its target. In our case report, a needle-through-needle technique was attempted in a lumbar interlaminar epidural steroid injection procedure after the initial needle fell short of the epidural space. To avoid removing the initial needle and restarting the procedure using a longer needle, a 20-gauge 6-inch Tuohy needle was inserted into the 17-gauge 3.5-inch Tuohy needle, successfully reaching the epidural space. This technique can facilitate quicker needle placement by avoiding the need for restarting the procedure with a longer needle. Thus, procedural time and radiation exposure may be decreased, as may patient discomfort from repeat needle insertions.


Assuntos
Anti-Inflamatórios/administração & dosagem , Injeções Epidurais/instrumentação , Dor Lombar/tratamento farmacológico , Agulhas , Obesidade/complicações , Triancinolona/administração & dosagem , Feminino , Fluoroscopia/métodos , Humanos , Injeções Epidurais/métodos , Dor Lombar/etiologia , Região Lombossacral , Pessoa de Meia-Idade , Radiculopatia/complicações
8.
Pain Med ; 19(10): 1952-1960, 2018 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-29618105

RESUMO

Objective: Prescription drug monitoring programs (PDMPs) enable prescribers to review patient prescription histories, and their use is mandatory in many states. We estimated the cost of physicians retrieving PDMP patient reports compared with a model where a delegate (i.e., administrative staff) retrieves reports. Methods: We performed a cost analysis with a one-year time horizon, from the perspective of physicians' employers. We obtained specialty-specific estimates of controlled substance prescribing frequency from the National Ambulatory Medical Care Survey, 2012-2014. We defined three PDMP usage cases based on the frequency of queries: comprehensive (before every Schedule II-IV controlled substance prescription), selective (before new Schedule II-IV prescriptions and every six months for continuing medications), and minimal (before new Schedule II or III prescriptions and annually for continuing medications). Results: The delegate model was less costly for all specialties in the comprehensive usage case and most specialties in the selective usage case, and it was similar to physician model costs in the minimal usage case. Estimated annual costs of the physician model to a large health care system (1,000 full-time equivalent physicians) were $1.6 million for comprehensive usage, $1.1 million for selective usage, and $645,313 for minimal usage. The delegate model was less costly in the comprehensive (savings of $907,283) and selective usage cases (savings of $156,216). Conclusions: Relying on delegates vs physicians to retrieve reports is less costly in most cases. Automation and integration of PDMP data into electronic health records may reduce costs further. Physicians, health care systems, and states should collaborate to streamline access to PDMPs.


Assuntos
Recepcionistas de Consultório Médico , Médicos , Padrões de Prática Médica/economia , Programas de Monitoramento de Prescrição de Medicamentos/economia , Pessoal Técnico de Saúde , Substâncias Controladas , Custos e Análise de Custo , Atenção à Saúde/economia , Registros Eletrônicos de Saúde , Pesquisas sobre Atenção à Saúde , Humanos , Neurologistas , Médicos de Família , Psiquiatria , Salários e Benefícios , Cirurgiões , Fatores de Tempo
9.
Can J Anaesth ; 65(2): 194-206, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29164528

RESUMO

PURPOSE: Dexamethasone is commonly used as an adjuvant to local anesthetics for peripheral nerve blockade; however, uncertainty persists regarding its optimal route of administration and safety. A systematic review and meta-analysis of randomized-controlled trials (RCTs) was conducted to compare the incremental benefits of intravenous (IV) vs perineural (PN) dexamethasone when used as adjuvants for peripheral nerve blockade to improve analgesia. SOURCES: A search strategy was developed to identify eligible articles from the Cochrane and National Library of Medicine databases from inception until June 2017. The National Center for Biotechnology Information Medical Subject Headings browser thesaurus was used to identify search terms and combinations of keywords. Any clinical trial that randomly allocated adult patients (≥ 18 yr old) to receive either IV or PN dexamethasone for peripheral nerve blockade was considered for inclusion. PRINCIPAL FINDINGS: After full-text screening of potentially eligible articles, 14 RCTs were included in this review. Overall, the use of PN dexamethasone did not provide a significant incremental benefit to the duration of analgesia [ratio of means (ROM), 1.23; Hartung-Knapp-Sidik-Jonkman (HKSJ) 95% confidence interval (CI), 0.85 to 1.85; P = 0.23] or to motor block duration (ROM, 1.14; HKSJ 95% CI, 0.98 to 1.31; P = 0.07). Also, at 24-hr follow-up, there was no significant difference between the two groups regarding pain scores (standardized mean difference, 0.36; HKSJ 95% CI, -0.08 to 0.80; I2 = 75%; P = 0.09) and cumulative opioid consumption (mean difference, 5.23 mg; HKSJ 95% CI, -4.60 to 15.06; P = 0.15). Lastly, no long-term nerve-related complications were observed with the use of PN dexamethasone. CONCLUSIONS: The results of our meta-analysis suggest that PN and IV dexamethasone provide equivalent analgesic benefits and have similar safety profiles, when used as adjuvants, for peripheral nerve blockade.


Assuntos
Analgésicos/administração & dosagem , Dexametasona/administração & dosagem , Bloqueio Nervoso/métodos , Administração Intravenosa , Adulto , Analgésicos/efeitos adversos , Analgésicos Opioides/administração & dosagem , Anestésicos Locais/administração & dosagem , Dexametasona/efeitos adversos , Humanos , Injeções , Medição da Dor , Nervos Periféricos , Ensaios Clínicos Controlados Aleatórios como Assunto
11.
Pain Med ; 18(11): 2162-2169, 2017 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-28339737

RESUMO

OBJECTIVE: Interpretation limitations of urine drug testing and the invasiveness of blood toxicology have motivated the desire for the development of simpler methods to assess biologically active drug levels on an individualized patient basis. Oral fluid is a matrix well-suited for the challenge because collections are based on simple noninvasive procedures and drug concentrations better correlate to blood drug levels as oral fluid is a filtrate of the blood. Well-established pharmacokinetic models were utilized to generate oral fluid steady state concentration ranges to assess the interpretive value of the alternative matrix to monitor steady state plasma oxycodone levels. METHODS: Paired oral fluid and plasma samples were collected from patients chronically prescribed oxycodone and quantitatively analyzed by liquid chromatography tandem mass spectrometry. Steady state plasma concentration ranges were calculated for each donor and converted to an equivalent range in oral fluid. Measured plasma and oral fluid oxycodone concentrations were compared with respective matrix-matched steady state ranges, using each plasma steady state classification as the control. RESULTS: A high degree of correlation was observed between matrices when classifying donors according to expected steady state oxycodone concentration. Agreement between plasma and oral fluid steady state classifications was observed in 75.6% of paired samples. This study supports novel application of basic pharmacokinetic knowledge to the pain management industry, simplifying and improving individualized drug monitoring and risk assessment through the use of oral fluid drug testing. Many benefits of established therapeutic drug monitoring in plasma can be realized in oral fluid for patients chronically prescribed oxycodone at steady state.


Assuntos
Analgésicos Opioides/uso terapêutico , Monitoramento de Medicamentos , Oxicodona/uso terapêutico , Medicamentos sob Prescrição/uso terapêutico , Adolescente , Adulto , Idoso , Analgésicos Opioides/administração & dosagem , Cromatografia Líquida/métodos , Monitoramento de Medicamentos/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Detecção do Abuso de Substâncias/métodos , Espectrometria de Massas em Tandem/métodos , Adulto Jovem
12.
Pain Med ; 18(2): 265-274, 2017 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-28204760

RESUMO

Language barriers can prevent pain physicians and patients from forming meaningful rapport and drive health care disparities. Non-adherence with scheduled pain clinic appointments deprives patients with chronic pain of needed specialist care. Objective: We evaluated the benefit of comprehensive initiatives to overcome language barriers to improve patient adherence with initial scheduled chronic pain clinic appointments. Design: After implementation of our initiative, we performed a retrospective cross-sectional analysis and fit logistic regression models to investigate the association between demographic factors and adherence. Setting: We collected retrospective data from an observational cohort with a scheduled appointment at the adult inner-city underserved outpatient Pain Center at Montefiore Medical Center, Bronx, New York. Patients: Between March 2012 and March 2014, 14,459 appointments were scheduled; 3,035 of these appointments represented initial first visits; patients had a mean age of 53 years; 15% were predominantly Spanish-speaking, 65% were female. Interventions: Our initiative to overcome language barriers in our pain clinic included appointment reminders in the patient's preferred language, Spanish-speaking staff, and unified locations with equitable access. Outcome Measures: Our dependent variable was adherence with a first scheduled pain clinic appointment. Results: We found that after implementation of our initiative, speaking Spanish was now statistically significantly associated with higher rates of adherence with appointments (Odds Ratio 1.32, 95% confidence interval [1.06­1.64]). Conclusions: We infer from our results that coordinated initiatives to overcome language barriers can be beneficial in improving appointment adherence and access to care by enhancing rapport and communication between pain physicians and their patients. Perspective: The results of this retrospective cross-sectional analysis of patients' adherence with scheduled appointments in an inner-city chronic pain clinic suggests that targeted initiatives including a pre-clinic reminder phone call in the patient's own language may help to overcome language barriers and improve access to care.


Assuntos
Dor Crônica/terapia , Barreiras de Comunicação , Idioma , Cooperação do Paciente/etnologia , Adulto , Agendamento de Consultas , Estudos Transversais , Feminino , Disparidades em Assistência à Saúde/etnologia , Humanos , Masculino , Pessoa de Meia-Idade , Ambulatório Hospitalar , Manejo da Dor/métodos , Estudos Retrospectivos , População Urbana
13.
J Pharmacol Exp Ther ; 357(3): 476-86, 2016 06.
Artigo em Inglês | MEDLINE | ID: mdl-27029584

RESUMO

Drug-induced toxicity is often mediated by electrophilic metabolites, such as bioactivation of acetaminophen (APAP) to N-acetyl-p-benzoquinone imine (NAPQI). We have shown that APAP hepatotoxicity can be prevented by 2-acetylcyclopentanone (2-ACP). This 1,3-dicarbonyl compound ionizes to form an enolate nucleophile that scavenges NAPQI and other electrophilic intermediates. In this study, we expanded our investigation of enolate-forming compounds to include analyses of the phloretin pharmacophores, 2',4',6'-trihydroxyacetophenone (THA) and phloroglucinol (PG). Studies in a mouse model of APAP overdose showed that THA provided hepatoprotection when given either by intraperitoneal injection or oral administration, whereas PG was hepatoprotective only when given intraperitoneally. Corroborative research characterized the molecular pharmacology (efficacy, potency) of 2-ACP, THA, and PG in APAP-exposed isolated mouse hepatocytes. For comparative purposes, N-acetylcysteine (NAC) cytoprotection was also evaluated. Measurements of multiple cell parameters (e.g., cell viability, mitochondrial membrane depolarization) indicated that THA and, to a lesser extent, PG provided concentration-dependent protection against APAP toxicity, which exceeded that of 2-ACP or NAC. The enolate-forming compounds and NAC truncated ongoing APAP exposure and thereby returned intoxicated hepatocytes toward normal viability. The superior ability of THA to protect is related to multifaceted modes of action that include metal ion chelation, free radical trapping, and scavenging of NAPQI and other soft electrophiles involved in oxidative stress. The rank order of potency for the tested cytoprotectants was consistent with that determined in a parallel mouse model. These data suggest that THA or a derivative might be useful in treating drug-induced toxicities and other conditions that involve electrophile-mediated pathogenesis.


Assuntos
Acetaminofen/metabolismo , Acetaminofen/toxicidade , Benzoquinonas/metabolismo , Citoproteção/efeitos dos fármacos , Iminas/metabolismo , Fígado/efeitos dos fármacos , Floretina/farmacologia , Animais , Fígado/citologia , Fígado/metabolismo , Masculino , Camundongos , Floretina/metabolismo
14.
Anesth Analg ; 123(1): 165-7, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-27159067

RESUMO

The obstetric anesthesiologist must consider the risk of spinal-epidural hematoma in patients with thrombocytopenia when choosing to provide neuraxial anesthesia. There are little data exploring this complication in the parturient. In this single-center retrospective study of 20,244 obstetric patients, the incidence of peripartum thrombocytopenia (platelet count <100,000/mm) was 1.8% (368 patients). Of these patients, 69% (256) received neuraxial anesthesia. No neuraxial hematoma occurred in any of our patients. The upper 95% confidence limit for spinal-epidural hematoma in patients who received neuraxial anesthesia with a platelet count of <100,000/mm was 1.2%.


Assuntos
Anestesia Epidural/efeitos adversos , Anestesia Obstétrica/efeitos adversos , Hematoma Epidural Espinal/etiologia , Parto , Trombocitopenia/complicações , Anestesia Epidural/métodos , Anestesia Obstétrica/métodos , Feminino , Humanos , Seleção de Pacientes , Contagem de Plaquetas , Gravidez , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Trombocitopenia/sangue , Trombocitopenia/diagnóstico
15.
Anesth Analg ; 123(1): 228-32, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-27314695

RESUMO

BACKGROUND: Even as the use of peripheral nerve blockade in the perioperative setting is increasing, neural injury secondary to accidental intraneural injection remains a significant patient safety concern. Current modalities, including electrical stimulation and ultrasound imaging, still lack consistency and absolute reliability in both the detection and prevention of this complication. The measurement of electrical impedance (EI) could be an easy and valuable additional tool to detect intraneural needle placement. Our objectives in this study were to measure the change in EI with intraneural needle advancement in recently amputated human limbs. METHODS: The study was conducted within 45 minutes of amputation. The nerves that were studied were the sciatic nerve in the popliteal fossa in above-knee amputations or the tibial nerve below the calf in below-knee amputations. The amputated limb was placed on a tray and under ultrasound imaging guidance, an insulated peripheral block needle connected to a nerve stimulator was placed extraneurally and subsequently advanced intraneurally. The experiment was repeated on the same nerve after exposure by surgical dissection. The differences in impedance measurements between intraneural and extraneural needle placement were compared. RESULTS: In the below-knee amputated extremity (tibial nerve, n = 6) specimens based on the ultrasound methods, mean ± SD for ultrasound-guided intraneural impedance was 10 ± 2 kΩ compared with an extraneural impedance of 6 ± 1.6 kΩ (P = 0.005). The difference between intraneural and extraneural impedance after open dissection was also significant when we repeated the analysis based on the same specimens (P = 0.005). Similarly, in the above-the-knee amputated extremity (sciatic nerve, n = 5) specimens, mean intraneural impedance was 35.2 ± 7.9 kΩ compared with an extraneural impedance of 25.2 ± 5.3 kΩ (P = 0.037). The difference between intraneural and extraneural impedance obtained after open dissection was also significant when we repeated the analysis based on the same specimens (P = 0.0002). The impedance values were consistent and similar to those obtained after open dissection. CONCLUSIONS: There is no reliable "gold standard" to predict or prevent intraneural needle placement during peripheral nerve blockade. This small sample-sized study demonstrated that there is a change in EI with intraneural needle advancement. In clinical practice, measurement of the EI in conjunction with nerve stimulation may serve as another tool to use for identifying intraneural needle placement during peripheral nerve blockade.


Assuntos
Amputação Cirúrgica , Extremidade Inferior/inervação , Bloqueio Nervoso/métodos , Traumatismos dos Nervos Periféricos/prevenção & controle , Nervo Isquiático/anatomia & histologia , Nervo Tibial/anatomia & histologia , Impedância Elétrica , Humanos , Injeções , Agulhas , Bloqueio Nervoso/efeitos adversos , Bloqueio Nervoso/instrumentação , Traumatismos dos Nervos Periféricos/etiologia , Nervo Isquiático/diagnóstico por imagem , Nervo Tibial/diagnóstico por imagem , Ultrassonografia de Intervenção
17.
J Pharmacol Exp Ther ; 353(1): 150-8, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25659651

RESUMO

We have previously shown that 2-acetylcyclopentanone (2-ACP), an enolate-forming 1,3-dicarbonyl compound, provides protection in cell culture and animal models of oxidative stress. The pathophysiology of ischemia-reperfusion injury (IRI) involves oxidative stress, and, therefore, we determined the ability of 2-ACP to prevent this injury in a rat liver model. IRI was induced by clamping the portal vasculature for 45 minutes (ischemia phase), followed by recirculation for 180 minutes (reperfusion phase). This sequence was associated with substantial derangement of plasma liver enzyme activities, histopathological indices, and markers of oxidative stress. The 2-ACP (0.80-2.40 mmol/kg), administered by intraperitoneal injection 10 minutes prior to reperfusion, provided dose-dependent cytoprotection, as indicated by normalization of the IRI-altered liver histologic and biochemical parameters. The 2-ACP (2.40 mmol/kg) was also hepatoprotective when injected before clamping the circulation (ischemia phase). In contrast, an equimolar dose of N-acetylcysteine (2.40 mmol/kg) was not hepatoprotective when administered prior to reperfusion. Our studies to date suggest that during reperfusion the enolate nucleophile of 2-ACP limits the consequences of mitochondrial-based oxidative stress through scavenging unsaturated aldehyde electrophiles (e.g., acrolein) and chelation of metal ions that catalyze the free radical-generating Fenton reaction. The ability of 2-ACP to reduce IRI when injected prior to ischemia most likely reflects the short duration of this experimental phase (45 minutes) and favorable pharmacokinetics that maintain effective 2-ACP liver concentrations during subsequent reperfusion. These results provide evidence that 2-ACP or an analog might be useful in treating IRI and other conditions that have oxidative stress as a common molecular etiology.


Assuntos
Cetonas/farmacologia , Fígado/efeitos dos fármacos , Traumatismo por Reperfusão/tratamento farmacológico , Acetilcisteína/farmacologia , Acetilcisteína/uso terapêutico , Aldeídos/química , Aldeídos/metabolismo , Animais , Citoproteção , Temperatura Alta , Cetonas/uso terapêutico , Fígado/irrigação sanguínea , Fígado/metabolismo , Fígado/patologia , Masculino , Estresse Oxidativo , Teoria Quântica , Ratos Sprague-Dawley , Traumatismo por Reperfusão/patologia , Succinato Desidrogenase/metabolismo
19.
J Pain Res ; 16: 2803-2816, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37600078

RESUMO

Introduction: Pain is the leading reason for which people seek medical care in the United States, and chronic pain (CP) affects approximately 50 million people in the US Pain perception is deeply personal, is highly correlated with behavioral and emotional disorders, and is greatly influenced by physiological and environmental factors. The patient-provider relationship can have profound implications for clinical outcomes within the context of treating CP. However, limited access to pain specialists, the complex nature of many CP-causing conditions, the absence of instruments for objective pain measurement, and the need to foster a trust-based patient-provider relationship throughout treatment pose unique challenges. Objective: To support a more optimal CP care delivery system that leverages a healthy therapeutic patient-provider relationship, we systematically gathered deeper knowledge of the behaviors, interpersonal dynamics, home environment, values, and mindsets of people who experience CP. Methods: We employed ethnographic research methods to collect and analyze data on views, habits, strategies, attitudes, and life circumstances of a range of participants living with CP. We aggregated, analyzed, and summarized participant data to identify trends and similarities. Results: Our findings suggest that patients can be broadly categorized into five predominant pain typologies, or "personas", which are characterized by respective symptom durations, care management preferences, values, communication styles, and behaviors. Conclusion: Identifying CP personas may enhance the ability to personalize CP care and help foster more robust therapeutic relationships, which may lead to greater trust, improved patient satisfaction, and better clinical outcomes.

20.
Health Psychol Res ; 11: 74137, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37197393

RESUMO

Background: The American Board of Medical Specialties definition of medical professionalism cites the need to acquire, maintain, and advance a value system serving the patients' and public's interests above self-interests.4 Medical professionalism is a one of the core physician competencies assessed by both the ACGME training program evaluation and the ABA certification process. However, a growing concern for the decline of professionalism and altruism in medicine resulted in increased publications on the matter, citing various potential sources for the issue. Methods: All residents and fellows (Focus Group 1) of the Anesthesiology Department of Montefiore Medical Center in Bronx, NY were invited to participate in a semi-structured interview via Zoom, held on two separate dates. A separate invitation was sent to the faculty of the department (Focus Group 2), held on one date. During the interview, guiding questions were provided by the 4 interviews to facilitate discussion. The interviewers, all members of the anesthesia faculty, took notes as the interviews progressed. The notes were reviewed for common themes as well as supporting and contradicting quotations. Results: A total of 23 residents and fellows and a total of 25 faculty members within the Anesthesiology department at Montefiore Medical Center were interviewed. Amongst the findings, common discussions concerned motivating and demotivating factors contributing to the professionalism and altruism exhibited by the residents and fellows when caring for critical COVID-19 patients during the height of the pandemic. It was widely regarded that patient improvement, community and team support, as well as intrinsic desire to help greatly motivated the team while continuous patient deterioration, uncertainty in staffing and treatment, and concerns for personal and family safety were sources of discouragement. Overall, faculty perceived an increased demonstration of altruism amongst residents and fellows. The statements made by the residents and fellows during their interviews supported this observation. Conclusions: The actions of the Montefiore Anesthesiology residents and fellows demonstrated that altruism and professionalism were readily available amongst physicians. Increased levels of empathy and responsibility contributed to a demonstration of professionalism that challenges previous views of a perceived decline of these attributes in the medical field. The findings of this study stress the importance of creating a curriculum and exercise that stress empathy-based care and altruism in order to improve resident satisfaction and decrease feelings of burnout. Additionally, curriculum additions to facilitate professionalism are proposed.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA