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1.
J Dermatolog Treat ; 35(1): 2394107, 2024 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-39191431

RESUMEN

Background: Notalgia paresthetica (NP) is a form of neuropathic itch characterized by recurrent itch in the mid back. Much about NP remains unclear, especially the patient experience.Objectives: The Neuropathic Itch Patient Survey (NIRVE) was a global, online survey conducted to better characterize the symptom burden of neuropathic itch from the patient perspective.Patients and methods: This report focuses on the symptom burden of the subpopulation of NIRVE participants with a self-reported diagnosis of NP (N = 91). Respondents reported visiting a median of 2 healthcare providers (HCPs) for their symptoms before receiving an accurate diagnosis of NP.Results: The most common cutaneous symptoms ever experienced were itch/pruritus, sensitive skin, painful or raw skin, numbness, and tingling. The symptoms reported by the most respondents as currently being experienced included itch/pruritus, numbness, painful or raw skin, tingling, and burning or hot sensation. Of patients currently experiencing symptoms, numbness and itch/pruritus were ranked as the most intense, followed by tingling, burning or hot sensation, and then painful or raw skin. Most patients consult multiple healthcare providers (HCPs) before receiving a diagnosis for their condition.Conclusion: Itch is overwhelmingly the most prevalent symptom of the condition, although half of patients also report experiencing sensitive skin, painful or raw skin, numbness, or tingling.


Asunto(s)
Prurito , Humanos , Prurito/diagnóstico , Prurito/etiología , Femenino , Masculino , Persona de Mediana Edad , Adulto , Parestesia/diagnóstico , Parestesia/etiología , Anciano , Encuestas y Cuestionarios , Adulto Joven , Hipoestesia/diagnóstico , Hipoestesia/etiología , Autoinforme , Prevalencia
2.
A A Pract ; 18(7): e01812, 2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38958292

RESUMEN

A 53-year-old woman underwent a thoracic epidural placement for a scheduled laparotomy. Postoperatively the patient had no appreciable epidural level after multiple epidural boluses and was noted to be severely hypotensive with right upper extremity weakness and numbness. She subsequently developed right-sided Horner's syndrome with worsening right upper extremity weakness and decreased sensation from C6 to T1. She regained full motor and sensory function in her right upper extremity with epidural removal. This unusual case raises awareness of the variability in the presentation of subdural spread and provides an example of an epidural complication that can mimic a cerebrovascular accident (CVA).


Asunto(s)
Analgesia Epidural , Anestésicos Locales , Síndrome de Horner , Debilidad Muscular , Parestesia , Accidente Cerebrovascular , Humanos , Femenino , Persona de Mediana Edad , Síndrome de Horner/etiología , Síndrome de Horner/inducido químicamente , Analgesia Epidural/efectos adversos , Parestesia/etiología , Debilidad Muscular/etiología , Anestésicos Locales/efectos adversos , Anestésicos Locales/administración & dosificación , Extremidad Superior/cirugía , Diagnóstico Diferencial
3.
J Med Case Rep ; 18(1): 335, 2024 Jul 22.
Artículo en Inglés | MEDLINE | ID: mdl-39034418

RESUMEN

BACKGROUND: Trigeminal trophic syndrome is a rare cranial and facial condition caused by damage to the central or peripheral branches of the trigeminal nerve. This syndrome consists of a triad of anesthesia, paresthesia, and crescent-shaped facial ulcer involving the ala nasi and sometimes extending to the upper lip. Although previous screening for human immunodeficiency virus in some patients with trigeminal trophic syndrome was negative, we present a unique case of trigeminal trophic syndrome who tested positive for human immunodeficiency virus with eye complications. CASE PRESENTATION: We present a rare case of trigeminal trophic syndrome in a 44-year-old Black African woman who tested positive for human immunodeficiency virus. She presented with a 6-week history of progressive, persistent, and painless left sided facial and scalp ulcerations that started as small skin erosion. Diagnosis of trigeminal trophic syndrome was made on clinical grounds based on the triad of anesthesia, paresthesia, and unilateral crescent-shaped ulcer in the trigeminal dermatome and her past medical history. The ulcer healed completely after counseling and pharmacological therapy, but she later developed left periorbital cellulitis and left upper eyelid full-thickness defect. CONCLUSION: This is by far the first documented case of trigeminal trophic syndrome with a positive human immunodeficiency virus test. Testing for human immunodeficiency virus in patients with trigeminal trophic syndrome is necessary as this can help improve clinical management and treatment outcomes. Seeking the services of specialists remotely in resource constraint settings is beneficial for managing complications associated with trigeminal trophic syndrome.


Asunto(s)
Infecciones por VIH , Humanos , Femenino , Adulto , Infecciones por VIH/complicaciones , Enfermedades del Nervio Trigémino/diagnóstico , Celulitis (Flemón)/diagnóstico , Úlcera Cutánea/etiología , Úlcera Cutánea/virología , Parestesia/etiología , Síndrome , Enfermedades de los Párpados/etiología , Enfermedades de los Párpados/diagnóstico
4.
Front Immunol ; 15: 1410634, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38911860

RESUMEN

Bilateral facial palsy with paresthesia (FDP) is a rare variant of GBS, characterized by simultaneous bilateral facial palsy and paresthesia of the distal limbs. Mounting evidence indicates that the presence of anti-GT1a IgG has a pathogenic role as an effector molecule in the development of cranial nerve palsies in certain patients with GBS, whereas anti-GT1a antibody is rarely presented positive in FDP. Here, we report the case of a 33-year-old male diagnosed with FDP presented with acute onset of bilateral facial palsy and slight paresthesias at the feet as the only neurological manifestation. An antecedent infection with no identifiable reason for the fever or skin eruptions was noted in the patient. He also exhibited cerebrospinal fluid albuminocytologic dissociation and abnormal nerve conduction studies. Notably, the testing of specific serum anti-gangliosides showed positive anti-GT1a IgG/IgM Ab. The patient responded well to intravenous immunoglobulin therapy. This case brings awareness to a rare variant of GBS, and provides the first indication that anti-GT1a antibodies play a causative role in the development of FDP. The case also suggests that prompt management with IVIG should be implemented if FDP is diagnosed.


Asunto(s)
Autoanticuerpos , Parálisis Facial , Gangliósidos , Parestesia , Humanos , Masculino , Adulto , Parestesia/inmunología , Parestesia/diagnóstico , Parestesia/etiología , Parálisis Facial/diagnóstico , Parálisis Facial/etiología , Parálisis Facial/inmunología , Autoanticuerpos/inmunología , Autoanticuerpos/sangre , Gangliósidos/inmunología , Inmunoglobulinas Intravenosas/uso terapéutico , Inmunoglobulina G/inmunología , Inmunoglobulina G/sangre , Síndrome de Guillain-Barré/diagnóstico , Síndrome de Guillain-Barré/inmunología
5.
Acta Neurochir (Wien) ; 166(1): 228, 2024 May 23.
Artículo en Inglés | MEDLINE | ID: mdl-38780808

RESUMEN

PURPOSE: Regarding surgical indications for carpal tunnel syndrome (CTS), the hypothesis that the recovery processes of subjective symptoms differ among pain, sensory, and motor symptoms and correlate with recovery in objective nerve conduction studies was examined in the present study. METHODS: The global symptom score (GSS) is a method used to assess clinical outcomes and covers subjective symptoms, including pain (pain and nocturnal awakening), sensory (numbness and paresthesia), and motor (weakness/clumsiness) symptoms. The relationships between long-term changes in GSS and recovery in nerve conduction studies were investigated. RESULTS: Forty patients (40 hands) were included (mean age 65 years; 80% female; 68% with moderate CTS: sensory nerve conduction velocity < 45 m/s and motor nerve distal latency > 4.5 ms). Pain and nocturnal awakening rapidly subsided within 1 month after surgery and did not recur in the long term (median 5.6 years). Paresthesia significantly decreased 3 months after surgery and in the long term thereafter. Weakness/clumsiness significantly decreased at 1 year. Sensory nerve distal latency, conduction velocity, and amplitude significantly improved 3 months and 1 year after surgery, and correlated with nocturnal awakening in the short term (3 months) in moderate CTS cases. The patient satisfaction rate was 91%. CONCLUSION: Rapid recovery was observed in pain and nocturnal awakening, of which nocturnal awakening correlated with the recovery of sensory nerve conduction velocity. Patients with pain symptoms due to moderate CTS may benefit from surgical release.


Asunto(s)
Síndrome del Túnel Carpiano , Conducción Nerviosa , Humanos , Síndrome del Túnel Carpiano/cirugía , Síndrome del Túnel Carpiano/fisiopatología , Síndrome del Túnel Carpiano/diagnóstico , Femenino , Masculino , Anciano , Persona de Mediana Edad , Conducción Nerviosa/fisiología , Resultado del Tratamiento , Adulto , Anciano de 80 o más Años , Nervio Mediano/cirugía , Nervio Mediano/fisiopatología , Parestesia/etiología , Parestesia/fisiopatología , Parestesia/cirugía , Recuperación de la Función/fisiología
7.
Am J Otolaryngol ; 45(4): 104314, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38663327

RESUMEN

BACKGROUND: The endoscopic modified medial maxillectomy (MMM) and prelacrimal approach (PLA) are two routinely performed endoscopic approaches to the maxillary sinus when access via a middle meatal antrostomy is insufficient. However, there is no data in the literature that has compared outcomes and complication profile between the two procedures to determine which approach is superior. OBJECTIVE: To compare the approach related morbidity of PLA and MMM. METHODS: A retrospective cohort study of all consecutive adult patients undergoing either MMM or PLA from 2009 to 2023 were identified. The primary outcome was development of epistaxis, paraesthesia, lacrimal injury, iatrogenic sinus dysfunction within a minimum of 3 months post-operative follow up. RESULTS: 39 patients (44 sides) underwent PLA and 96 (96 sides) underwent MMM. There were no statistically significant differences between the rates of paraesthesia (9.1 % vs 14.6 %, p = 0.367) or prolonged paraesthesia (2.3 % vs 5.2 %, p = 0.426), iatrogenic maxillary sinus dysfunction (2.3 % vs 5.2 %, p = 0.426) or adhesions requiring removal (4.5 % vs 4.2 %, p = 0.918). No cases of epiphora or nasal cavity stenosis occurred in either arm in our study. CONCLUSIONS: According to our data, the endoscopic modified medial maxillectomy and prelacrimal approach are both equally safe approaches with their own benefits to access.


Asunto(s)
Endoscopía , Neoplasias del Seno Maxilar , Seno Maxilar , Humanos , Masculino , Femenino , Endoscopía/métodos , Estudios Retrospectivos , Persona de Mediana Edad , Neoplasias del Seno Maxilar/cirugía , Seno Maxilar/cirugía , Anciano , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Adulto , Resultado del Tratamiento , Epistaxis/etiología , Epistaxis/cirugía , Estudios de Cohortes , Parestesia/etiología
9.
Br J Oral Maxillofac Surg ; 62(5): 441-447, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38637215

RESUMEN

The parasymphysis area of the mandible is highly dynamic because it is subjected to both occlusal and muscular forces. As a result, the fractures in this transition zone have a special pattern, posing a challenge for surgeons whether to use one miniplate versus two miniplates, as per Champy's recommendations. The commonest complication resulting to treat this area is mental nerve paraesthesia due to the dissection and stretching of the nerve. Hence, an in vitro research study of a newly designed 'Zeta' miniplate is performed, to evaluate the biomechanical behaviour using finite element (FE) analysis and biomechanical analysis along with a comparison study with the conventional miniplate configurations. The results showed that the Zeta miniplate produces the lowest stresses 17.511 MPa and the least total structural deformation of 0.0011 mm after applying the maximum occlusal bite force. On application of torsional load, total structural deformation was 0.0004 mm and von Mises (VM) stress value was 0.24 MPa which was lowest when compared with the two miniplate system. Hence, the newly developed Zeta miniplate is superior in terms of stability. Another benefit of its design is that it helps in preventing mental nerve paraesthesia and tooth root damage while fixing and stabilising the fractured bony segments.


Asunto(s)
Fuerza de la Mordida , Placas Óseas , Análisis de Elementos Finitos , Fijación Interna de Fracturas , Mandíbula , Fracturas Mandibulares , Estrés Mecánico , Fracturas Mandibulares/cirugía , Humanos , Fenómenos Biomecánicos , Fijación Interna de Fracturas/instrumentación , Fijación Interna de Fracturas/métodos , Mandíbula/cirugía , Torsión Mecánica , Diseño de Equipo , Ensayo de Materiales , Parestesia/etiología , Nervio Mandibular , Titanio/química , Miniaturización
10.
Phys Ther ; 104(6)2024 Jun 04.
Artículo en Inglés | MEDLINE | ID: mdl-38501862

RESUMEN

OBJECTIVE: Clinical practice guidelines recommend the radial nerve mechanosensitivity evaluation in patients with lateral epicondylalgia. Despite different positions and sequences having been described, no research analyzed how each variation triggers symptoms associated with lateral epicondylalgia. The aim of this study was to explore the effects of different positions and sequences in the upper limb neural tension test 2b (ULNT2b) in symptom responses in patients with lateral epicondylalgia. METHODS: In this observational study, 66 patients underwent 4 test conditions: standard ULNT2b, ULNT2b proximal to distal, ULNT2B with resisted supination, and resisted supination isolated. Paresthesia sensations, symptom reproduction, pain intensity (measured using a visual analog scale), and distribution of painful symptoms data were collected. RESULTS: Significant differences in paresthesia sensations were observed between groups, with significant differences between the standard ULNT2B and other ULNT variations or resisted supination maneuvers. Symptom reproduction also differed significantly across groups, with significant differences between the standard ULNT2B and other ULNT or resisted supination tests. The positive/negative test and percentage of distribution of painful symptoms scores varied significantly across 4 conditions in both lateral and frontal views. Although pain intensity scores during tests were comparable among the tests, distribution of painful symptoms differed significantly. CONCLUSION: Variations in the ULNT2b test can affect symptom responses in patients with lateral epicondylalgia. The standard ULNT2b test appears more effective at reproducing symptoms, intensity of paresthesia, and distribution of painful symptoms compared to other ULNT variations and the resisted supination test. IMPACT: ULNT2b sequences have been shown to elicit varying responses concerning paresthesia, replication of familiar symptoms, positive/negative test results, and distribution of painful symptoms. Clinicians should consider specific test variations during the patients' radial nerve mechanosensitivity assessment to identify aggravating factors reproducing recognizable symptoms. A control group of asymptomatic participants and the role of presence of other comorbidities, psychological factors, or the duration of symptoms were not considered in this study and might play an important role influencing the results of the tests.


Asunto(s)
Dimensión del Dolor , Parestesia , Nervio Radial , Codo de Tenista , Humanos , Masculino , Femenino , Codo de Tenista/fisiopatología , Persona de Mediana Edad , Nervio Radial/fisiopatología , Adulto , Parestesia/fisiopatología , Parestesia/etiología , Supinación/fisiología , Extremidad Superior/fisiopatología
11.
J Emerg Med ; 66(4): e467-e469, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38462393

RESUMEN

BACKGROUND: Literature on systemic envenomation caused by tarantula bites, particularly from the Theraphosidae family, is relatively scarce. This case report provides a formal description of the first known instance of systemic envenomation caused by the Socotra Island Blue Baboon Tarantula (Monocentropus balfouri). CASE REPORT: In this case, a 23-year-old employee of an exotic pet shop suffered from perioral paresthesia, generalized muscle cramps, and rhabdomyolysis because of a Monocentropus balfouri bite. His symptoms were successfully relieved with oral benzodiazepines. EMERGENCY PHYSICIAN BE AWARE OF THIS?: This case highlights the potential for serious complications resulting from the bite of Monocentropus balfouri, a species gaining popularity among global exotic pet collectors.


Asunto(s)
Rabdomiólisis , Picaduras de Arañas , Arañas , Animales , Humanos , Adulto Joven , Adulto , Calambre Muscular , Picaduras de Arañas/complicaciones , Parestesia/etiología , Espasmo , Rabdomiólisis/complicaciones
12.
Ultrasound Obstet Gynecol ; 64(1): 104-111, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38315642

RESUMEN

OBJECTIVE: To describe the sonomorphological changes and appearance of deep endometriosis (DE) affecting the nervous tissue of the sacral plexus (SP). METHODS: This was a retrospective study of symptomatic patients who underwent radical resection of histologically confirmed DE affecting the SP and who had undergone preoperative transvaginal sonography (TVS) between 2019 and 2023. Lesions were described based on the terms and definitions of the International Deep Endometriosis Analysis (IDEA), International Ovarian Tumor Analysis (IOTA) and Morphological Uterus Sonographic Assessment (MUSA) groups. A diagnosis of DE affecting the SP on TVS was made when the sonographic criteria of DE were visualized in conjunction with fibers of the SP and the presence of related symptoms corresponding to sacral radiculopathy. Clinical symptoms, ultrasound features and histological confirmation were analyzed for each patient included. RESULTS: Twenty-seven patients with DE infiltrating the SP were identified in two contributing tertiary referral centers. Median age was 37 (range, 29-45) years and all patients were symptomatic and presented one or more of the following neurological symptoms: dysesthesia in the ipsilateral lower extremity (n = 17); paresthesia in the ipsilateral lower extremity (n = 10); chronic pelvic pain radiating in the ipsilateral lower extremity (n = 9); chronic pain radiating in the pudendal region (n = 8); and motor weakness in the ipsilateral lower extremities (n = 3). All DE lesions affecting the SP were purely solid tumors in the posterior parametrium in direct contact with, or infiltrating, the S1, S2, S3 and/or S4 roots of the SP. The median of the largest diameter recorded for each of the DE nodules was 35 (range, 18-50) mm. Echogenicity was non-uniform in 23 (85%) of the DE nodules, with all but one of these nodules containing hyperechogenic areas. The shape of the lesions was irregular in 24 (89%) cases. Only one lesion exhibited a lobulated form, with all other irregular lesions showing a spiculated appearance. An acoustic shadow was produced in 20 (74%) of the nodules, all of which were internal. On color or power Doppler examination, 21 (78%) of the nodules showed no signal (color score of 1). The remaining six (22%) lesions showed a minimal color content (color score of 2). According to pattern recognition, most DE nodules were purely solid, non-uniform, hypoechogenic nodules containing hyperechogenic areas, with internal shadows and irregular spiculated contours, and were poorly vascularized on color/power Doppler examination. CONCLUSION: The ultrasound finding of a parametrial, unilateral, solid, non-uniform, hypoechogenic nodule with hyperechogenic areas and possible internal shadowing, as well as irregular spiculated contours, demonstrating poor vascularization on Doppler examination in proximity to or involving the structures of the SP, indicates DE affecting the SP. © 2024 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.


Asunto(s)
Endometriosis , Plexo Lumbosacro , Humanos , Femenino , Endometriosis/diagnóstico por imagen , Endometriosis/patología , Endometriosis/complicaciones , Adulto , Estudios Retrospectivos , Persona de Mediana Edad , Plexo Lumbosacro/diagnóstico por imagen , Ultrasonografía/métodos , Dolor Pélvico/etiología , Dolor Pélvico/diagnóstico por imagen , Parestesia/etiología
13.
Neuron ; 112(3): 331-333, 2024 Feb 07.
Artículo en Inglés | MEDLINE | ID: mdl-38330897

RESUMEN

Neurostimulation produces unnatural cutaneous sensations with potent analgesic effects in pain syndromes. In this issue of Neuron, Sagalajev et al.1 demonstrate that these sensations are an epiphenomenon and explain how high-frequency stimulation can provide analgesia without these unnecessary sensations.


Asunto(s)
Parestesia , Estimulación de la Médula Espinal , Humanos , Parestesia/terapia , Parestesia/etiología , Dimensión del Dolor , Dolor/complicaciones , Manejo del Dolor , Axones/fisiología , Estimulación de la Médula Espinal/efectos adversos
14.
Photodermatol Photoimmunol Photomed ; 40(2): e12955, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38361492

RESUMEN

BACKGROUND: A few patients report intense pain and other unpleasant sensations, such as burning, dysesthesia and hyperalgesia, after even brief exposure to the sun and in the absence of any skin lesion. Sometimes they also develop systemic symptoms, such as mild fever, fatigue, faintness and fainting. As a result, these patients carefully avoid even short-term sun exposure with a consequent severe negative impact on their lives. METHODS: We have reviewed the clinical findings and the results of photobiological investigations of 10 patients who presented this clinical picture. Six of these patients were previously described by our group with the diagnosis of sun pain. We have reviewed the similarities with other previously described disorders such as solar dysesthesia and PUVA pain and have evaluated possible pathogenetic mechanisms. RESULTS: During phototesting our patients experienced intense pain in the exposed area and in the surrounding skin, without any visible lesion, even with very low sub-erythemal doses. At follow-up, five patients were diagnosed with fibromyalgia, three with a major depressive disorder, one with bipolar syndrome and one with a conversion disorder. The pathogenesis remains unclear, but the use of a psychopharmacological treatment with antidepressants improved both the neuropsychiatric symptoms and sensitivity to the sun in most subjects. CONCLUSION: For patients with pain and other severe symptoms in the absence of skin lesions and clinical and laboratory manifestations of known photodermatoses, a neuropsychiatric evaluation should be suggested.


Asunto(s)
Trastorno Depresivo Mayor , Trastornos por Fotosensibilidad , Humanos , Parestesia/diagnóstico , Parestesia/etiología , Luz Solar/efectos adversos , Trastornos por Fotosensibilidad/diagnóstico , Trastornos por Fotosensibilidad/etiología , Dolor/etiología
15.
Am J Kidney Dis ; 84(1): 49-61.e1, 2024 07.
Artículo en Inglés | MEDLINE | ID: mdl-38266973

RESUMEN

RATIONALE & OBJECTIVE: The toxins that contribute to uremic symptoms in patients with chronic kidney disease (CKD) are unknown. We sought to apply complementary statistical modeling approaches to data from untargeted plasma metabolomic profiling to identify solutes associated with uremic symptoms in patients with CKD. STUDY DESIGN: Cross-sectional. SETTING & PARTICIPANTS: 1,761 Chronic Renal Insufficiency Cohort (CRIC) participants with CKD not treated with dialysis. PREDICTORS: Measurement of 448 known plasma metabolites. OUTCOMES: The uremic symptoms of fatigue, anorexia, pruritus, nausea, paresthesia, and pain were assessed by single items on the Kidney Disease Quality of Life-36 instrument. ANALYTICAL APPROACH: Multivariable adjusted linear regression, least absolute shrinkage and selection operator linear regression, and random forest models were used to identify metabolites associated with symptom severity. After adjustment for multiple comparisons, metabolites selected in at least 2 of the 3 modeling approaches were deemed "overall significant." RESULTS: Participant mean estimated glomerular filtration rate was 43mL/min/1.73m2, with 44% self-identifying as female and 41% as non-Hispanic Black. The prevalence of uremic symptoms ranged from 22% to 55%. We identified 17 metabolites for which a higher level was associated with greater severity of at least one uremic symptom and 9 metabolites inversely associated with uremic symptom severity. Many of these metabolites exhibited at least a moderate correlation with estimated glomerular filtration rate (Pearson's r≥0.5), and some were also associated with the risk of developing kidney failure or death in multivariable adjusted Cox regression models. LIMITATIONS: Lack of a second independent cohort for external validation of our findings. CONCLUSIONS: Metabolomic profiling was used to identify multiple solutes associated with uremic symptoms in adults with CKD, but future validation and mechanistic studies are needed. PLAIN-LANGUAGE SUMMARY: Individuals living with chronic kidney disease (CKD) often experience symptoms related to CKD, traditionally called uremic symptoms. It is likely that CKD results in alterations in the levels of numerous circulating substances that, in turn, cause uremic symptoms; however, the identity of these solutes is not known. In this study, we used metabolomic profiling in patients with CKD to gain insights into the pathophysiology of uremic symptoms. We identified 26 metabolites whose levels were significantly associated with at least one of the symptoms of fatigue, anorexia, itchiness, nausea, paresthesia, and pain. The results of this study lay the groundwork for future research into the biological causes of symptoms in patients with CKD.


Asunto(s)
Insuficiencia Renal Crónica , Uremia , Humanos , Femenino , Masculino , Uremia/complicaciones , Uremia/sangre , Insuficiencia Renal Crónica/complicaciones , Insuficiencia Renal Crónica/sangre , Insuficiencia Renal Crónica/epidemiología , Estudios Transversales , Persona de Mediana Edad , Anciano , Estudios de Cohortes , Prurito/etiología , Prurito/epidemiología , Prurito/sangre , Fatiga/etiología , Fatiga/sangre , Fatiga/epidemiología , Metabolómica , Náusea/epidemiología , Calidad de Vida , Parestesia/etiología , Parestesia/epidemiología , Tasa de Filtración Glomerular
16.
Lasers Med Sci ; 39(1): 23, 2024 Jan 09.
Artículo en Inglés | MEDLINE | ID: mdl-38191831

RESUMEN

Orthognathic surgery involves invasive and major surgical procedures commonly used to correct maxillofacial deformities. Bilateral sagittal split ramus osteotomy (BSSO) is often used to treat dentofacial anomalies related to the mandible, but it can result in various complications, the most common of which is inferior alveolar nerve damage. Nerve damage-induced paresthesia of the lower lip significantly affects patient comfort. Medical treatments such as steroids and vitamin B, low-level laser therapy (LLLT), and platelet-rich fibrin (PRF) can be used as supportive therapies for nerve regeneration after damage. This study aimed to investigate the effectiveness of two different types of lasers in treating lower lip paresthesia after BSSO. This clinical trial was a controlled, single-center, prospective, single-blind, randomized study. Thirty patients were included in the study and randomly assigned to three groups: Group I (laser GRR, n = 10) received transcutaneous and transmucosal GRR laser treatment, Group II (Epic10 laser, n = 10) received transmucosal and transcutaneous Epic10 laser treatment, and Group III (vitamin B, n = 10) received B-complex vitamin tablets orally once a day. Two-point and brush tests were performed six times at specific intervals, and a visual analog scale was used to evaluate pain and sensitivity. Both vitamin B and laser therapies accelerated nerve regeneration. The contribution of the laser groups to the healing rate was better than that of the vitamin B group. Although there was no statistically significant difference between the two laser groups, clinical observations indicated better results in the GRR laser group.


Asunto(s)
Labio , Parestesia , Humanos , Labio/cirugía , Parestesia/etiología , Parestesia/terapia , Osteotomía Sagital de Rama Mandibular/efectos adversos , Estudios Prospectivos , Método Simple Ciego , Rayos Láser , Vitaminas
17.
Int J Oral Maxillofac Surg ; 53(7): 612-618, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38199951

RESUMEN

Mental nerve paresthesia is a serious postoperative complication of mandibular third molar extraction. It appears that no study has examined the relationship between the surface morphology of the mandibular third molar roots and the possibility of mental nerve paresthesia following tooth extraction. Therefore, the root morphology of the mandibular third molars was examined according to age using dental cone beam computed tomography (CBCT), and the possibility of mental nerve paresthesia following tooth extraction was evaluated. The study included 1216 patients who had undergone mandibular third molar extractions. The root morphology of 1534 teeth in 791 patients who had CBCT performed before surgery was studied. Factors evaluated were age, complete or incomplete formation of the mandibular third molar roots, periodontal ligament atrophy of the mandibular third molar roots, hypercementosis, and mandibular canal deformation. Mandibular third molar root formation was completed between the ages of 19 and 30 years. Complete formation of the mandibular third molar roots (P = 0.002) and deformation of the mandibular canal (P < 0.001) were identified as risk factors for mental nerve paresthesia. These findings suggest that the risk of mental nerve paresthesia could be reduced if the extraction of third molars is performed prior to complete root formation.


Asunto(s)
Tomografía Computarizada de Haz Cónico , Mandíbula , Nervio Mandibular , Tercer Molar , Parestesia , Extracción Dental , Raíz del Diente , Humanos , Tercer Molar/cirugía , Extracción Dental/efectos adversos , Femenino , Adulto , Masculino , Parestesia/etiología , Raíz del Diente/diagnóstico por imagen , Persona de Mediana Edad , Mandíbula/cirugía , Mandíbula/inervación , Mandíbula/diagnóstico por imagen , Factores de Riesgo , Nervio Mandibular/diagnóstico por imagen , Factores de Edad , Adolescente , Complicaciones Posoperatorias , Anciano
18.
Neuromodulation ; 27(1): 178-182, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37804279

RESUMEN

OBJECTIVE: Spinal cord stimulation (SCS) thresholds are known to change with body position; however, these changes have not been fully characterized for both "constant-voltage" and "constant-current" pulse generators. This study aimed to evaluate and quantify changes in psychophysical thresholds resulting from postural changes that may affect both conventional paresthesia-based SCS and novel paresthesia-free SCS technologies. MATERIALS AND METHODS: We measured perceptual, usage, and discomfort thresholds in four body positions (prone, supine, sitting, standing) in 149 consecutive patients, with temporary lower thoracic percutaneous epidural electrodes placed for treating persistent low back and leg pain. We trialed 119 patients with constant-voltage stimulators and 30 patients with constant-current stimulators. RESULTS: Moving from supine to the sitting, standing, or prone positions caused all three thresholds (perceptual, usage, and discomfort) to increase by 22% to 34% for constant-voltage stimulators and by 44% to 82% for constant-current stimulators. Changing from a seated to a supine position caused stimulation to exceed discomfort threshold significantly more often for constant-current (87%) than for constant-voltage (63%) stimulators (p = 0.01). CONCLUSIONS: Posture-induced changes in SCS thresholds occurred consistently as patients moved from lying (supine or prone) to upright (standing or sitting) positions. These changes were more pronounced for constant-current than for constant-voltage pulse generators and more often led to stimulation-evoked discomfort. These observations are consistent with postural changes in spinal cord position measured in imaging studies, and with computer model predictions of neural recruitment for these different spinal cord positions. These observations have implications for the design, implantation, and clinical application of spinal cord stimulators, not only for conventional paresthesia-based SCS but also for paresthesia-free SCS.


Asunto(s)
Estimulación de la Médula Espinal , Humanos , Estimulación de la Médula Espinal/métodos , Parestesia/etiología , Parestesia/terapia , Dolor/complicaciones , Manejo del Dolor/efectos adversos , Postura , Médula Espinal/diagnóstico por imagen
19.
Neuromodulation ; 27(1): 108-117, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38108675

RESUMEN

OBJECTIVES: Recent developments in spinal cord stimulation (SCS) programming have initiated new modalities of imperceptible stimulation. However, the boundaries of sensory perception are not well defined. The BEnchtop NEuromodulation Following endIng of Trial study aimed to create a map of perceptual threshold responses across a broad range of SCS parameters and programming to inform subperception therapy design. MATERIALS AND METHODS: This multicenter study was conducted at seven US sites. A total of 43 patients with low back and/or leg pain who completed a percutaneous commercial SCS trial were enrolled. Test stimulation was delivered through trial leads for approximately 90 minutes before removal. SCS parameters, including amplitude, frequency, pulse width (PW), electrode configuration, cycling, and multifrequency stimulation were varied during testing. Paresthesia threshold (PT), comfort level (CL), perceptual coverage area, and paresthesia quality (through patient selection of keywords) were collected. Differences were evaluated with analysis of variance followed by post hoc multiple comparisons using t-tests with Bonferroni correction. RESULTS: PT was primarily determined by PW and was insensitive to frequency for constant frequency stimulation (range: 20 Hz-10 kHz; F(1284) = 69.58, p < 0.0001). For all tests, CL was approximately 25% higher than PT. The dominant variable that influenced paresthesia quality was frequency. Sensations described as comfortable and tingling were most common for frequencies between 60 Hz and 2.4 kHz; unpleasant sensations were generally more common outside this range. Increasing distance between active electrodes from 7 mm to 14 mm, or cycling the SCS waveform at 1 Hz, decreased PT (p < 0.0001). Finally, PT for a low-frequency stimulus (ie, 60 Hz) was unaffected by mixing with a sub-PT high-frequency stimulus. CONCLUSIONS: In contrast to previous work investigating narrower ranges, PW primarily influenced PT, independently of frequency. Paresthesia quality was primarily influenced by pulse frequency. These findings advance our understanding of SCS therapy and may be used to improve future novel neuromodulation paradigms.


Asunto(s)
Dolor Crónico , Estimulación de la Médula Espinal , Humanos , Parestesia/etiología , Parestesia/terapia , Dolor , Manejo del Dolor , Percepción , Médula Espinal , Dolor Crónico/terapia , Resultado del Tratamiento
20.
Spine (Phila Pa 1976) ; 49(6): 378-384, 2024 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-38126538

RESUMEN

STUDY DESIGN: Multicenter, prospective cohort study. OBJECTIVE: The current study aimed to identify the incidence of residual paresthesias after surgery for degenerative cervical myelopathy (DCM), and to demonstrate the impact of these symptoms on clinical outcomes and patient satisfaction. SUMMARY OF BACKGROUND DATA: Surgery for DCM aims to improve and/or prevent further deterioration of physical function and quality-of-life (QOL) in the setting of DCM. However, patients are often not satisfied with their treatment for myelopathy when they have severe residual paresthesias, even when physical function and QOL are improved after surgery. MATERIALS AND METHODS: The authors included 187 patients who underwent laminoplasty for DCM. All patients were divided into two groups based on their visual analog scale score for paresthesia of the upper extremities at one year postoperatively (>40 vs. ≤40 mm). Preoperative factors, changes in clinical scores and radiographic factors, and satisfaction scales at one year postoperatively were compared between groups. The authors used mixed-effect linear and logistic regression modeling to adjust for confounders. RESULTS: Overall, 86 of 187 patients had severe residual paresthesia at one year postoperatively. Preoperative patient-oriented pain scale scores were significantly associated with postoperative residual paresthesia ( P =0.032). A mixed-effect model demonstrated that patients with severe postoperative residual paresthesia showed significantly smaller improvements in QOL ( P =0.046) and myelopathy ( P =0.037) than patients with no/mild residual paresthesia. Logistic regression analysis identified that residual paresthesia was significantly associated with lower treatment satisfaction, independent of improvements in myelopathy and QOL (adjusted odds ratio: 2.5, P =0.010). CONCLUSION: In total, 45% of patients with DCM demonstrated severe residual paresthesia at one year postoperatively. These patients showed significantly worse treatment satisfaction, even after accounting for improvements in myelopathy and QOL. As such, in patients who experience higher preoperative pain, multidisciplinary approaches for residual paresthesia, including medications for neuropathic pain, might lead to greater clinical satisfaction. LEVEL OF EVIDENCE: 3.


Asunto(s)
Parestesia , Enfermedades de la Médula Espinal , Humanos , Parestesia/epidemiología , Parestesia/etiología , Estudios Prospectivos , Calidad de Vida , Incidencia , Resultado del Tratamiento , Vértebras Cervicales/cirugía , Enfermedades de la Médula Espinal/epidemiología , Enfermedades de la Médula Espinal/cirugía , Dolor
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