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High-frequency spinal cord stimulation produces long-lasting analgesic effects by restoring lysosomal function and autophagic flux in the spinal dorsal horn.

High-frequency spinal cord stimulation (HF-SCS) has been established as an effective therapy for neuropathic pain. However, the analgesic mechanisms involved in HF-SCS remain to be clarified. In our study, adult rat neuropathic pain was induced by spinal nerve ligation. Two days after modeling, the rats were subjected to 4 hours of HF-SCS (motor threshold 50%, frequency 10,000 Hz, and pulse width 0.024 ms) in the dorsal horn of the spinal cord. The results revealed that the tactile allodynia of spinal nerve-injured rats was markedly alleviated by HF-SCS, and the effects were sustained for 3 hours after the stimulation had ceased. HF-SCS restored lysosomal function, increased the levels of lysosome-associated membrane protein 2 (LAMP2) and the mature form of cathepsin D (matu-CTSD), and alleviated the abnormally elevated levels of microtubule-associated protein 1A/B-light chain 3 (LC3)-II and sequestosome 1 (P62) in spinal nerve-injured rats. HF-SCS also mostly restored the immunoreactivity of LAMP2, which was localized in neurons in the superficial layers of the spinal dorsal horn in spinal nerve-injured rats. In addition, intraperitoneal administration of 15 mg/kg chloroquine for 60 minutes reversed the expression of the aforementioned proteins and shortened the timing of the analgesic effects of HF-SCS. These findings suggest that HF-SCS may exhibit long-lasting analgesic effects on neuropathic pain in rats through improving lysosomal dysfunction and alleviating autophagic flux. This study was approved by the Laboratory Animal Ethics Committee of China Medical University, Shenyang, China (approval No. 2017PS196K) on March 1, 2017.

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Osteoid Osteoma of Talus – A Rare Occurrence Mimicking Ankle Arthritis: A Case Report.

Osteoid osteoma is a benign, bone forming tumor which accounts for nearly 10% of all benign bone tumors. The foot is very rarely involved, with only around 2% of osteoid osteomas being reported to occur in bones of the foot. Osteoid osteoma of the talus could present as symptoms mimicking monoarticular arthritis of the ankle. We present a case of osteoid osteoma occurring in the neck of talus, presenting such a diagnostic dilemma.

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Ketamine reduces the dose of remifentanil required during prolonged head and neck surgery: a propensity-matched analysis.

High-dose opioids induce hyperalgesia and tolerance, which negatively affects postoperative recovery. Prolonged surgery inevitably requires higher opioid doses. Ketamine reduces perioperative opioid consumption and prevents opioid-induced tolerance. However, its effects in cases of prolonged surgery remain unknown. This study aimed to evaluate the dose of intraoperative remifentanil, an ultrashort-acting µ-opioid agonist, administered after an intravenous ketamine bolus during prolonged head and neck surgery. This single-center, retrospective, observational study included 251 patients who underwent head and neck surgery (operation time ≥8 h) between January 2015 and December 2019. The participants were stratified into two groups: those who received an intravenous bolus of ketamine and those who did not (ketamine group and non-ketamine group, respectively). Propensity score-matching was used to match patients in a 1:1 ratio between the two groups, based on their covariates. The difference in intraoperative remifentanil dose administered between the two groups was assessed. After 1:1 propensity score-matching, 89 matched patients were selected from each group. The mean ± standard deviation dose of remifentanil administered was significantly lower in the ketamine group than in the non-ketamine group before (0.15±0.05 vs 0.17±0.05 µg/kg/min; =0.01) and after matching (0.15±0.06 vs 0.17±0.05 µg/kg/min; =0.03). In conclusion, intravenous ketamine administration may reduce the intraoperative dose of remifentanil required during prolonged head and neck surgery. However, further studies are required to evaluate the effect of this finding on enhanced recovery after surgery.

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The effectiveness of repetitive paravertebral block with ropivacaine and dexmedetomidine for the prevention of postherpetic neuralgia in patients with acute herpes zoster.

Herpes zoster (HZ) is a disease caused by the reactivation of the varicella zoster virus. Postherpetic neuralgia (PHN) is the most common complication of HZ.

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The Incidence of Itching in Thoracic Epidural Morphine Applications: Can Laboratory Parameters Be Effective in Predicting Itching?

Background Epidural morphine, a powerful analgesic, also causes significant itching in patients. This study aimed to determine the incidence of thoracic epidural morphine-induced pruritus (EMIP) after thoracotomy and to investigate preoperative laboratory parameters for predicting itching in patients who received thoracic epidural morphine (TEM). Methods The patients were divided into two groups. The itching (+) group consists of patients who developed itching (n=31). The no-itching (-) / control group (n=31) was selected among patients who did not develop itching after TEM. Preoperative hemogram values, neutrophil/lymphocyte rate (NLR), platelet/lymphocyte rate (PLR), lymphocyte/monocytes rate (LMR), preoperative and postoperative alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase (ALP), gamma-glutamyl transferase values, and whether there was itching in the first 48 hours after surgery were determined. Results The incidence of thoracic EMIP after thoracotomy was 7.9%. While preoperative and postoperative ALP was found to be lower in patients with itching compared to those without itching. The cut-off value for preoperative/postoperative ALP was 84.5/53. Decreased white blood cell (WBC) could predict pruritus with a borderline statistical significance. Conclusions The incidence of EMIP after thoracotomy was lower compared to other literature data. Infusion of morphine only into the epidural area may cause a low incidence of EMIP. Laboratory parameters ALP and WBC can predict EMIP, but other hemogram parameters, NLR, LMR, and PLR cannot predict EMIP.

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Long-Term Quality of Life (5-15 Years Post-Thyroidectomy) of Thyroid Carcinoma Patients in Two Tertiary Care Hospitals.

Purpose Early detection of thyroid cancer has reduced mortality and improved survival of patients. Increased detection has raised the incidence of early stage disease. Some physicians underestimate the suffering of these patients due to the concept of "good cancer." The unmet needs of the survivors still need to be addressed. The objective of this paper was to evaluate the long-term quality of life (QOL) of thyroid cancer survivors. Methods A cross-sectional telephone survey of 211 thyroid cancer survivors who underwent thyroidectomy performed between 2006 and 2016 in two academic tertiary care hospitals was conducted using a validated Arabic version of the European Organization for Research and Treatment of Cancer head and neck cancer specific quality of life questionnaire (EROTC QLQ) – H&N43 questionnaire using a scale of 1-4, with 4 being most severe. Results On almost half (48.5%) of patients, thyroidectomy was performed in 2013 or earlier. Patients' perceptions of problems were very low, with a mean score of 1.56 ± 0.7). Worry about the test results (2.37 ± 1.19), future health (2.36 ± 1.22), tingling or numbness in hands or feet (2.32 ± 1.22), pain in the shoulder (2.04 ± 1.18), and dry, itchy skin (2.04 ± 1.18) were the only items that received a mean score of more than 2. No statistically significant differences in patients' problems were observed according to either tumor histopathology or type of thyroidectomy. Conclusion The overall QOL score for the patients was very good. The persistent problems identified need to be addressed in the long-term follow-up. Survivorship care plans need to be developed incorporating proper interventions.

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INTERVENTIONAL COMBINED RADIOFREQUENCY METHOD IN THE TREATMENT OF CHRONIC LUMBOSACRAL RADICULAR PAIN ASSOCIATED WITH MODERATE DISC HERNIATION.

Intervertebral disc degeneration often is a cause of low back pain (LBP) and radicular pain even without severe compression of the nerve root by hernial material. Thermodiscoplasty, or intradiscal electrothermal therapy (IDET) is used for minimally invasive treatment of discogenic pain. Pulsed radiofrequency (PRF) of the dorsal root ganglion (DRG) is used as an interventional method for radicular pain elimination. For the first time we have proposed the simultaneous combined use of these techniques. Our research's aim – to study the dynamics of pain syndrome and disability in patients undergone simultaneous combined treatment with the IDET and PRF DRG for pain associated with moderate disc herniation without spinal root severe compression, which confirmed motor and sensitive deficit absence. A retrospective analysis of 22 patients treated at the Neurospine clinic (Kyiv) from 2019 to 2020 was carried out. All patients had degenerative-dystrophic disease of the intervertebral discs L4-L5 and L5-S1 with therapeutically resistant radicular pain. The standard examination included two-plane spondylography and magnetic resonance imaging, as well as an assessment of neurological status. The discogenic origin of pain is confirmed by provocative contrasting discography. The interest of the corresponding spinal root was confirmed by performing selective radicular blockade.The treatment results were assessed using the Numerical rating scale (NRS) and the Oswestry disability index (ODI); statistical processing was carried out using Microsoft Excel and Statistica-10 program tools. There were no complications detected. All patients noted a significant reduction in pain and decrease of disability: VAS (Me) before treatment = 7.77±1.02, ODI (Ме) before treatment = 70.45±7.85; VAS (Me) immediately after surgery = 2.18±1.13. This trend persisted for six months: VAS (Me) 6 months after surgery = 2.0±0.75, ODI (Me) 6 months after surgery = 30.45±9.98. The simultaneous combined use of IDET and PRF DRG is an effective and safe treatment for therapeutically resistant chronic lumbosacral radicular pain associated with moderate disc herniation.

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Prothrombin Complex Concentrates to Treat Coagulation Disturbances: An Overview With a Focus on Use in Infants and Children.

Various factors may lead to coagulation disturbances following cardiopulmonary bypass and surgery for congenital heart disease. In addition to the risks associated with the administration of allogeneic blood products, persistent disturbances in coagulation function and ongoing bleeding may lead to prolonged surgical times, hemodynamic alterations, intracranial hemorrhage, and even mortality. In most clinical scenarios, coagulation disturbances are treated by targeted blood product therapy including fresh frozen plasma, platelet transfusions, or the administration of cryoprecipitate. When routine blood product therapy fails, coagulation adjuncts such as activated recombinant factor VII or prothrombin complex concentrates (PCCs) may be an option to rapidly replenish depleted coagulation factors and correct coagulation disturbances. The PCC formulations including three-factor PCC, four-factor PCC, and factor eight-inhibitor bypass activator (FEIBA) have been used mainly in the adult population with sporadic case series and anecdotal reports in the pediatric population. The following manuscript discusses the various PCC products available for clinical use, reviews previous reports of their use in infants and children with an emphasis on their role following surgery for congenital heart disease, and outlines their potential role in these clinical scenarios.

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[The application of NBI endoscopy in finding concealed primary lesions of misdiagnosis of oropharyngeal cancer].

The aim of this study is to analyze the application value of NBI endoscopy in finding the concealed primary lesions of misdiagnosis of oropharyngeal cancer. The clinical data of patients with missed oropharyngeal cancer treated in the Department of Otolaryngology Head and neck surgery, the Second Affiliated Hospital of Xi'an Jiaotong University from May 2018 to June 2021, were retrospectively studied, and the missed diagnosis was also analyzed combined with results of NBI endoscopy. In 31 cases of misdiagnosis of oropharyngeal cancer patients, including 25 males and 6 females, there was no significant difference in age, BMI index, course of disease and TNM stage (> 0.05), and the pharyngeal or cervical symptoms were the first clinical manifestations of them, containing pharyngeal pain in 17 cases(54.8%) , pharyngeal foreign body sensation in 4 cases(12.9%) and unilateral cervical mass in 10 cases (32.3%). No laryngoscopy was performed (21 cases) or no primary lesion was found by laryngoscopy (10 cases) at initial diagnosis. Among them, "inflammatory lesions" were given anti-inflammatory treatment with ineffective results or surgical resection was explored for suspicious lesions (17 cases), or imaging examination (9 cases, including 6 cases with CT and MRI, 3 cases with PET-CT) and cervical lymph node biopsy (5 cases) were carried out for further diagnosis. According to these results, they were given ordinary laryngoscope (2 cases) or NBI endoscopy (29 cases) subsequently, finally they were confirmed as oropharyngeal squamous cellcarcinoma after localized biopsy at the suspicious lesions, indicating that the accuracy of NBI endoscopy in finding the concealed primary lesions of oropharyngeal cancer (93.55%) is significantly higher than that of ordinary electronic laryngoscope (6.45%)(²=43.613, <0.01). NBI endoscopy has unique advantages in finding oropharyngeal cancer in concealed parts such as tonsil, root of tongue, soft palate and lateral wall of oropharynx, which could reduce misdiagnosis of oropharyngeal cancer.

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Epilepsy is a pathological condition characterized by seizures of muscle tension and convulsions in which the patient is unable to control himself, resulting in various complications and injuries. In this paper we talk about a rare case that combines a shoulder dislocation with a fracture of the surgical neck of the humerus after an epileptic seizure. The patient came to the hospital with clinical symptoms directed at dislocating the shoulder after an epileptic seizure, but careful examination and radiography revealed the presence of a fracture of the surgical neck of the humerus, so the management needed experience to repair two serious traumatic injuries. In the light of the foregoing, the need for clinical knowledge regarding such injuries in terms of diagnosis and methods of management and treatment is very necessary especially that neglect or wrong diagnosis will lead to very bad results, the most important of which are chronic pain, disability and stiffness.

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