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CYP2D6 Basic Genotyping of Patients with Chronic Pain Receiving Tramadol or Codeine. A Study in a Greek Cohort.

To assess CYP2D6 genotype prevalence in chronic pain patients treated with tramadol or codeine.

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Prevalence, Patterns, and Correlates of Pain in Medically Hospitalized Pediatric Patients With Somatic Symptom and Related Disorders.

Somatic symptom and related disorders (SSRDs) and pain are highly comorbid in the pediatric population. Little is known about the prevalence of pain and factors that may predispose and perpetuate pain in hospitalized youth with SSRD.

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Clinically Significant Drug-Drug Interaction Between Methadone and Cannabidiol.

The use of cannabidiol products in pediatric patients is becoming more frequent because of the increased ease of accessibility. This case report illustrates the potential for cannabidiol to interact with stable medication regimens. A 13-year-old girl with metastatic cancer and chronic pain presented with increased sleepiness and fatigue. She had been started on 7.5 mg of methadone by mouth twice daily 4 months earlier. Unbeknownst to her physicians, her parents had commenced her on cannabidiol and subsequently increased the dose leading up to her presentation, thinking it would result in tumor shrinkage. The initial serum methadone level was 271 ng/mL, which decreased to 125 ng/mL 14 days after discontinuing cannabidiol. The reduced serum methadone level coincided with improved sleepiness and fatigue. Cannabidiol inhibits CYP3A4 and CYP2C19, both of which are involved in the metabolism of methadone. Pediatricians should be aware of this potential interaction and inquire if their patients are receiving cannabidiol.

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The Effect of Abobotulinum Toxin A on the Symptoms of Raynaud’s Phenomenon: A Case Series.

Raynaud's phenomenon (RP) is a relatively common syndrome occurring alone or in combination with autoimmune and inflammatory diseases. It is characterized by pain and ulceration due to vasospasm in response to cold and stress, most often affecting the digits. Although pharmacologic treatment for this condition exists, it is not always efficacious. Our case series demonstrates the use of abobotulinum toxin A in the treatment of RP. We report the cases of four patients who received injections of abobotulinum toxin A to treat their mild to severe RP symptoms. They experienced clinical improvement for up to one year after treatment.

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Factors affecting outcome in frameless non-isocentric stereotactic radiosurgery for trigeminal neuralgia: a multicentric cohort study.

Stereotactic radiosurgery (SRS) is an effective treatment for trigeminal neuralgia (TN). Nevertheless, a proportion of patients will experience recurrence and treatment-related sensory disturbances. In order to evaluate the predictors of efficacy and safety of image-guided non-isocentric radiosurgery, we analyzed the impact of trigeminal nerve volume and the nerve dose/volume relationship, together with relevant clinical characteristics.

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Cortical Strut Graft for Enigmatic Thigh Pain in Uncemented Total Hip Replacement.

Aims Enigmatic thigh pain in uncemented femoral components of a total hip replacement can be severe and disabling. Treatment can be conservative or surgical with cortical strut graft or revision of the femoral stem. Cortical strut grafting may offer good results with reduced morbidity. The aim of this study was to report the functional and radiographic outcomes of four patients with enigmatic thigh pain treated with cortical strut allograft. Materials and Methods Between 2016 and 2018, four women underwent cortical strut allografting at two centres. All patients had an uncemented, proximally porous S-ROM femoral implant (DePuy, Warsaw, In, USA). All other causes of anterolateral thigh pain were excluded. The mean age was 36.7 years (range: 29-51 years). Patients were followed up for a minimum of 14 months (range: 14-38 months). The University of California, Los Angles (UCLA) activity score, pain scores, complications, and radiographs at six weeks, three months, six months, nine months and one year were recorded. Results Mean UCLA activity scores increased from 3.2 (range: 2-4) to 6.2 (range: 6-7) post-operatively. Radiologically, all four patients had complete osseointegration of their strut grafts. Pain scores decreased at six weeks and at six months. One deep venous thrombosis occurred. One patient experienced recurrence of anterolateral thigh pain 26 months post-strut graft, which resolved with protected weight-bearing and analgesia for three months. Conclusions In uncemented femoral prostheses, cortical strut grafting to treat enigmatic thigh pain can reduce symptoms and increase activity without the need to revise a well-fixed femoral stem. We add to the growing body of evidence that this can be a successful surgical technique.

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A case report of a transient splenial lesion related to HaNDL syndrome.

Transient lesions in the splenium of the corpus callosum have been identified in many clinical cases, and often correspond to a metabolic insult to the brain. The syndrome of transient headache and neurological deficits with cerebrospinal fluid lymphocytosis (HaNDL syndrome) is a rare but under-recognised headache syndrome.

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Efficacy of Dexmedetomidine vs Morphine as an Adjunct in a Paravertebral Block with Bupivacaine in Postoperative Analgesia Following Modified Radical Mastectomy.

Objective To observe the efficacy of dexmedetomidine vs morphine as an adjunct in a paravertebral block (PVB) with bupivacaine in postoperative analgesia following modified radical mastectomy. Study design This was a randomized controlled trial performed from June 2018 to August 2019 in the Department of Anesthesia, Bakhtawar Amin Medical and Dental College, Ch. Pervaiz Ellahi Institute of Cardiology, Multan, Gurki Hospital, Services Institute of Medical Sciences, and Sheikh Zayed Hospital, Lahore. Methodology Seventy-eight patients were equally divided into group M, which received morphine (3 mg) and group D, which received dexmedetomidine (1 µg/kg), along with 20 cc 0.25% bupivacaine, for PVB. The primary outcome included morphine requirements in the post-anesthesia care unit (PACU). Secondary outcomes included the quality and duration of analgesia, intraoperative doses of fentanyl and propofol, postoperative doses of diclofenac required, postoperative nausea and vomiting (PONV), and the Ramsey sedation score. Data were entered into SPSS version 23 (IBM Corp., Armonk, NY) and analyzed by applying the independent t-test, Mann Whitney U-test, and the chi-square test or Fischer's exact test, as appropriate. P≤0.05 was considered statistically significant. Results The mean time for the first analgesic administration was much shorter in group D as compared to group M (p<0.001). The average doses of ephedrine and morphine used were higher in group D (p-value 0.033 and 0.013, respectively). In the PACU, 33.3% of group D patients as compared to 12.8% of group M patients needed morphine (p=0.032). Postoperatively, diclofenac consumption was higher in group D (p<0.001). Postoperative pain was lower and sedation was higher in group M (p<0.05). Conclusion As an adjunct to bupivacaine in PVB for MRM, morphine is superior to dexmedetomidine.

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Chiari type I malformation: role of the Chiari Severity Index and Chicago Chiari Outcome Scale.

The authors aimed to determine whether the Chiari Severity Index (CSI), and other clinical variables, can be used as a predictor of postoperative outcomes for Chiari type I malformation (CM-I) using the modified Chicago Chiari Outcome Scale (mCCOS) as the postoperative measure.

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[A bibliometric analysis of the field of anesthesia during 2009-2018].

The limited number of bibliometric studies in the literature have generally focused on the top-cited studies in the field of anesthesia, however, there is a lack of studies that made a holistic bibliometric evaluation of these works. The purpose of this study is to make a contemporary summary of the articles published in the field of anesthesia within the last 10 years through detailed bibliometric methods.

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