Facial Pain Research Articles

Effectiveness of mobilization on cranio– –mandibular index in temporomandibular joint dysfunction among collegiates

Background: Temporomandibular disorder (TMD), according to the American Academy of Orofacial Pain (AAOP), is a collection of painful and/or dysfunctional diseases affecting the masticatory muscles, temporomandibular joints (TMJs), and associated tissues. This can be treated effectively by the manual mobilization. Objective: To find out the effectiveness of mobilization on craniomandibular index in Temporomandibular Joint Dysfunction among college students. Methods: It is a quasi-experimental pre and post type study performed among 40 college students, both boys and girls, with Temporomandibular Joint Dysfunction, selected through convenient sampling of the age group 18–25 years, with a Craniomandibular index score of more than 0.50. The selected group is treated with a 4 week mobilization to see the effectiveness of the treatment. Outcome measure: Cranio Mandibular Index which encloses of the mandibular movement, range of motion, joint palpation ,muscle palpation, TMJ noise. Results: The results show that there was a significant improvement in the mean values of the craniomandibular index score after mobilization, with a mean difference of 0.32 ± 0.05. Conclusion: The study concluded that mobilization is an effective treatment approach for temporomandibular joint dysfunction among college students.

Evaluating neonatal pain via fusing vision transformer and concept-cognitive computing

In clinical nursing, neonatal pain assessment is a challenging task for preventing and controlling the impact of pain on neonatal development. To reduce the adverse effects of repetitive painful treatments during hospitalization on newborns, we propose a novel method (namely pain concept-cognitive computing model, PainC3M) for evaluating facial pain in newborns. In the fusion system, we first improve the attention mechanism of vision transformer by revising the node encoding way, considering the spatial structure, edge and centrality of nodes, and then use its corresponding encoder as a feature extractor to comprehensively extract image features. Second, we introduce a concept-cognitive computing model as a classifier to evaluate the level of pain. Finally, we evaluate our PainC3M on various open pain data sets and a real clinical pain data stream, and the experimental results demonstrate that our PainC3M is very effective for dynamic classification and superior to other comparative models. It also provides a good approach for pain assessment of individuals with aphasia (or dementia).

A nociceptive-nociplastic spectrum of myofascial orofacial pain: insights from neuronal ion channel studies.

Myofascial orofacial pain, traditionally viewed as a nociceptive pain condition, also exhibits characteristics consistent with nociplastic pain-pain arising from altered nociception without clear evidence of tissue damage. Evidence supporting myofascial orofacial pain as nociplastic pain includes clinical observations of central sensitisation in patients, even in the absence of visible inflammation. Sensitisation is characterised by heightened responsiveness of nociceptive neurons to normal stimuli or activation by normally subthreshold stimuli, either in the peripheral or central nervous system. It is linked to maladaptive neuroplastic changes, including increased functional potentiation and altered expression of neuronal ion channels, receptors and neurotransmitters. This mini-review presents insights from existing evidence regarding altered nociception and its relation to changes in the expression of neuronal ion channels in myofascial orofacial pain. Increased expression of transient receptor potential (TRP) vanilloid 1 channels (TRPV1), TRPV4, TRP ankyrin 1 channels (TRPA1), Piezo2 channels, P2X3 purinergic receptors, N-Methyl-D-Aspartate (NMDA) receptors and voltage-gated calcium channels in the trigeminal ganglion of rodents has been observed in association with myofascial orofacial pain. This evidence highlights the role of neuronal ion channels in the pathophysiology of myofascial orofacial pain and supports the involvement of nociplastic mechanisms.

Cost-utility and clinical outcome analysis of surgery or oral corticosteroids treatment in patients with chronic rhinosinusitis with nasal polyps

Background: Surgery and oral corticosteroids are recommended therapies for chronic rhinosinusitis with nasal polyps (CRSwNP) patients who are nonresponsive to intranasal corticosteroid treatment. Objective: This study aimed to compare the effectiveness of these 2 treatments in terms of improving sinus-related symptoms, enhancing quality of life, and economic costs and duration costs. Methods: This prospective study enrolled CRSwNP patients. All participants were instructed to complete the 22-item Sino-Nasal Outcome Test (SNOT-22), visual analog scale, and 36-item short-form (SF-36) questionnaire at baseline and 3 months after treatment. The nasal polyp score (NPS) was assessed via endoscopic examination. Additionally, patients were requested to maintain records of economic direct costs, other indirect costs, and duration costs throughout the 3-month period and to report them during each follow-up visit. Results: A total of 40 patients who underwent surgery or received oral corticosteroids were enrolled in this study. After 3 months of treatment, significant improvements were observed between baseline and 3 months after treatment in the NPS, total SNOT-22 score, and nasal congestion, runny nose, facial pain, olfactory function, and overall symptoms measured. Only headache and sleep order were improved in the surgery group. Both physical functioning and general health, as measured by the SF-36, improved after both treatments, and the role-physical, bodily pain, and social functioning domains of the SF-36 improved only in the surgery group. The changes in the NPS, nasal congestion, runny nose, olfactory function, and sleep disorders in the surgery group were greater than those in the oral corticosteroid group (P values = 0.0003, 0.0092, 0.0258, 0.0284, and 0.0164, respectively). Changes in the total SNOT-22 score and SF-36 subscores were not different between the 2 treatment groups. The direct economic costs and duration costs of surgical treatment were 4.5 times and 17.0 times higher, respectively, than those of oral corticosteroid treatment. Conclusions: Both surgical and oral corticosteroid treatments effectively improved clinical symptoms and quality of life in patients with CRSwNP. Patients who underwent surgery exhibited greater improvements in sinus-related symptoms. Nevertheless, oral corticosteroid treatment presented notable advantages in terms of economic cost and duration cost of disease-related care.

Simple Epithelial Transplantation for Ocular Surface Reconstruction After Severe Ocular Burn Injury.

To manage ocular surface complications and recover conjunctival and corneal epithelia after unilateral severe chemical burn. We performed simple conjunctival epithelial transplantation (SCET) to obtain renewal of fornix and bulbar-tarsal conjunctiva epithelium, followed by simple limbal epithelial transplantation (SLET) to recover limbal function and epithelial corneal surface. Slit-lamp examination, fluorescein staining, in vivo confocal microscopy, Kheirkhah grading system for symblepharon severity, Wong-Baker FACES Pain Rating Scale, and best-corrected visual acuity were assessed before surgery, at 1 to 3 months after SCET and SLET, and thereafter at 6 to 12 to 36 months. Two patients with unilateral burn injuries underwent surgery. Eye mobility and fornix reconstruction were promptly achieved, and conjunctival epithelium with goblet cells was observed on the bulbar and tarsal conjunctiva 3 months after SCET. After SLET, corneal epithelium and cornea-conjunctiva transition zone were observed at 3 and 6 months, respectively. From before surgery to 6 months after SLET, symblepharon improved from grade IVa2 and IIIb2 to Ic0 and Ib0, the Wong-Baker FACES Pain Rating Scale changed from grade 6 and 4 to 0, and best-corrected visual acuity upgraded from 1.40 and 1.10 logarithm of the minimum angle of resolution to 0.5 logarithm of the minimum angle of resolution, in patient 1 and 2, respectively. After 3 years, results remained stable. SCET effectively healed the bare conjunctival area relieving subjective symptoms and discomfort. Sequential SCET and SLET showed to be feasible in restoring a normal ocular surface with long-lasting results suggesting the aim in patients with severe ocular burn is not merely corneal epithelium renewal but also the regeneration of ocular surface homeostasis.

Ageing-Related Macrophage Polarisation in the Trigeminal Ganglion Enhances Incisional Intraoral Pain.

Although macrophage polarisation in the trigeminal ganglion (TG) is crucial in orofacial pain hypersensitivity, the effect of ageing-related changes and their involvement in intra-oral nociception remains unclear. We assessed the effect of ageing-related macrophage polarisation in TG on intra-oral mechanical pain hypersensitivity following palatal mucosal incision using senescence-accelerated mice (SAM)-prone8 (SAMP8) and SAM-resistant 1 (SAMR1). Mechanical head-withdrawal reflex threshold (MHWRT) of the palatal mucosa was measured for 21 days after palatal mucosal incision. On days 3 and 14, the abundance of Iba-1-immunoreactive (IR) cells, CD11c-IR cells (pro-inflammatory macrophages (M1)), C-C motif chemokine ligand 2 (CCL2)-IR M1-macrophages, CD206-IR cells (anti-inflammatory macrophages (M2)) and transforming growth factor-β (TGF-β)-IR M2-macrophages in the TG was analysed. The effect of continuous intra-TG administration of CCL2-neutralising antibody or recombinant-CCL2 on MHWRT was examined. Incision-induced decrease in MHWRT was enhanced in SAMP8 compared with that in SAMR1. On days 3 and 14, the number of CCL2-IR M1-macrophages in TG was increased in SAMP8 compared with that in SAMR1. CCL2-neutralising antibody suppressed, whereas recombinant-CCL2 increased pain hypersensitivity in SAMP8. Mechanical pain hypersensitivity after oral mucosal injury is potentiated and sustained by age-related enhancement of CCL2 signalling via M1-macrophage hyperactivation in TG.

Outcomes of Elongated Styloid Process Syndrome Treated with Minimally Invasive Cervical Styloidectomy (MICS)-A Single-Center Retrospective Study.

Background: Stylohyoid syndrome, also known as classical Eagle syndrome (ES), is a rare condition characterized by elongation of the styloid process (SP) or calcification of the stylohyoid chain, presenting numerous non-specific symptoms. Most papers concerning this rare condition are case reports, case studies, or retrospective studies. This retrospective study delves into the intricacies of Eagle syndrome and evaluates surgical outcomes in patients treated with minimally invasive cervical styloidectomy (MICS). Methods: We conducted a retrospective study of patients treated due to ES between September 2021 and August 2023. Ninety-seven patients were qualified for MICS. Evaluation before and after surgical treatment was conducted during follow-up visits and by a questionnaire that included various data, such as symptoms, pain intensity, evaluation of healing period, and overall patient satisfaction. The minimum follow-up period was six months. Results: After applying inclusion and exclusion criteria, eighty-four patients were qualified for further assessment. The most common symptoms that subsided completely after treatment were pharyngeal foreign body sensation and pain with dysphagia or odynophagia. The MICS procedure proved to be highly effective, with 94.2% of patients experiencing a significant reduction in pain intensity and 97.1% reporting overall success. All patients were satisfied with the aesthetic outcome of the scar. The length of SP and time onset from the first symptoms to treatment positively correlated with the number, intensity, and time required for symptoms to subside. Conclusions: Eagle syndrome should be considered in diagnosing patients with orofacial and cervical pain symptoms, as the time from occurrence of the first symptoms to treatment is crucial. MICS is highly effective and has a low rate of complications in treating ES. Potential scar formation should not be a significant factor when deciding between the intraoral and external approaches.

Isolated fungal sphenoid sinusitis with unilateral lateral rectus palsy six years post lung transplant

Rhino-orbital-cerebral mucormycosis (ROCM) infections are rare and usually occur in patients with diabetes, malignancy, or organ transplantation. The most common presenting symptoms include facial pain and swelling, fever, and rhinorrhea. Mortality rates reach nearly 50%. Those with previous organ transplants typically present with sinus symptoms a few weeks to months after transplantation. A 75-year-old man presented with headache. His history was significant for bilateral lung transplantation in 2017. On his fourth presentation, he was admitted to the hospital for work up. Imaging showed small fluid levels within the right maxillary and sphenoid sinuses. Infectious work-up revealed no meningitis. On day three, the patient complained of diplopia on the right. His examination was significant for right lateral rectus palsy. Repeat imaging was performed and showed increasing fluid levels of the right maxillary and sphenoid sinuses, and the otolaryngology consultation service was consulted. Nasal endoscopy was significant for pink, vascularised mucosa with no obvious regions of pallor or necrosis. Endoscopic sinus surgery was performed. There were no findings suggestive of fungus but purulence of the right sphenoid grew Rhizopus. The patient’s nerve palsy did not resolve and progressed to the contralateral orbit. Repeat nasal endoscopy continued to show healthy mucosa while MRI showed enhancement worrisome for meningitis. To our knowledge, this is the only reported case of fungal sphenoid sinusitis resulting in meningitis and death six years after transplant. Current literature documents fungal infection in post-transplant patients up to four years after surgery, with most occurring within the first year. Suspicion for fungal infection should remain high in this patient population. Keywords: mucormycosis, lung transplant, sinusitis, lateral rectus palsy

Small Fiber Neuropathy in Burning Mouth Syndrome: A Systematic Review.

Burning mouth syndrome (BMS) is a chronic idiopathic orofacial pain disorder, characterized by persistent burning sensations and pain without clear pathological causes. Recent research suggests that small fiber neuropathy (SFN) may play a significant role in the neuropathic pain and sensory disturbances associated with BMS. Following PRISMA guidelines, this systematic review aims to evaluate and synthesize current evidence supporting SFN's involvement in BMS. The protocol is registered in PROSPERO (CRD42024555839). The results show eight studies reported reductions in nerve fiber density in tongue biopsies (ranging from 30% to 60%), along with morphological changes indicative of small fiber damage. Additionally, an increase in TRPV1-positive, NGF-positive, and P2X3-positive fibers, overexpression of Nav1.7, and slight underexpression of Nav1.9 mRNA were observed in BMS patients. Quantitative Sensory Testing in seven studies revealed sensory abnormalities such as reduced cool detection and cold pain thresholds. Blink reflex and corneal confocal microscopy also indicated peripheral and central small fiber damage, along with increased artemin mRNA expression. The evidence strongly supports SFN as a key factor in the pathophysiology of BMS, particularly due to reductions in nerve fiber density and altered sensory thresholds. However, variability across studies highlights the need for larger, standardized research to establish causal relationships and guide therapeutic strategies.

Assessing the Diagnostic Value of Brain White Matter Hyperintensities and Clinical Symptoms in Predicting the Detection of CSF Venous Fistula in Patients with Suspected Spontaneous Intracranial Hypotension.

Spontaneous intracranial hypotension (SIH) due to CSF venous fistula (CVF) is increasingly recognized as a secondary cause of headaches, with symptoms often overlapping with primary headache syndromes such as migraine. While brain MRI studies have focused on features indicative of SIH, findings that support an alternate headache etiology, such as the bifrontal white matter hyperintensities (WMH) often seen in migraines, have not been explored in this context. This study assesses 1) the quantity and distribution of WMH and 2) the presenting clinical features in patients with and without CVF found on dynamic decubitus CT myelography (dCTM). 72 consecutive patients underwent clinical workup for SIH due to suspected CVF, including pre-procedural brain and spine MRI followed by dCTM. Brain imaging features were analyzed, including Bern score, quantitative WMH burden, and WMH distribution. Demographics and clinical symptoms present at the time of presentation were recorded. Imaging features were compared between groups with and without CVF using parametric or nonparametric comparisons according to variable normality. Multivariate logistic regression explored the relationships between imaging features, clinical symptoms, and the presence of CVF. The cohort included 40 patients with (CVF+) and 32 patients without (CVF-), with no significant age or sex differences. CVF+ patients had significantly higher Bern scores and significantly fewer WMH. There were significant differences in the frequencies of WMH patterns between groups, with a migrainous pattern observed most frequently in CVF-patients. Logistic regression combining Bern score, WMH burden, and WMH pattern demonstrated a better fit for predicting CVF than using Bern score or WMH features alone. Fourteen clinical symptoms showed the greatest differences between CVF+ and CVF-groups. Logistic regression demonstrated a positive association between CVF detection and a pressure/throbbing headache quality, and negative associations for neck pain, facial pain, phonophobia, and anhedonia/depression. These findings suggest a negative association between CVF detection, increased burden of WMH, and a migrainous WMH pattern. Symptom analysis describes distinct clinical phenotypes, challenging orthostatic headache as a defining characteristic. These results support a comprehensive assessment of imaging and clinical presentations in the workup of suspected SIH. SIH = spontaneous intracranial hypotension; CVF = CSF venous fistula; WMH = white matter hyperintensities; dCTM = dynamic CT myelography; dDSM = dynamic digital subtraction myelography; PPV = positive predictive value; NPV = negative predictive value Received month day, year; accepted after revision month day, year.

Efficacy and safety of a third stereotactic radiosurgery for recurrent trigeminal neuralgia: an international, multicenter study.

Trigeminal Neuralgia (TN) is a debilitating facial pain disorder, often necessitating surgical interventions when medication proves insufficient. Stereotactic Radiosurgery (SRS) is an established therapeutic option. Limited studies explored the feasibility of a third SRS procedure. Our study investigates the safety and efficacy of a third SRS procedure for recurrent TN. We performed a retrospective analysis across multiple centers using databases collected prospectively. Pain status was evaluated utilizing the BNI Pain Intensity Scales. The Kaplan-Meier method was employed to estimate the time to recurrence, with group comparisons conducted using log-rank tests. Associations were explored using Chi-square and logistic regression models. Ten institutions contributed with a total of 35 patients. A third SRS revealed sustained effectiveness with a pain control rate of 82.7%. The median time to recurrence was 35.5months. New sensory dysfunction following the third procedure occurred in 22% of patients who had preserved sensory function after the second procedure. When considering those who developed sensory dysfunction after the second procedure, 40% of the entire cohort was affected. There were no significant differences in pain recurrence intervals among the three procedures. A meta-analysis, combining data from previous studies, showed that 89.6% of patients achieved some degree of pain control after a third SRS, with 27.4% experiencing new sensory dysfunction and a median time to recurrence of 31.6months. Our study, the largest on the topic, affirms the sustained effectiveness of a third SRS for TN, providing comparable pain relief to initial procedures. Notably, an extended pain-free interval after the third SRS session was observed. Facial sensory dysfunction emerged as the primary side effect. Larger studies are warranted to explore correlations with demographics and treatment parameters for a comprehensive understanding of repeat SRS in managing recurrent TN.

Microvascular Decompression for Trigeminal Neuralgia Secondary to Vertebrobasilar Dolichoectasia: Review of the Literature and Illustrative Case.

Classical trigeminal neuralgia (TN) is a chronic pain disorder characterized by severe, unilateral facial pain, often resulting from vasculonervous conflict. A less common cause of TN is vertebrobasilar dolichoectasia (VBD). Microvascular decompression (MVD) is the preferred surgical intervention for TN, but in case of VBD, the surgical procedure is more complex due to the aberrant vascular anatomy. This study aims to review the evidence on MVD for VBD-induced TN, and analyze operative challenges, efficacy, and postoperative outcomes. An illustrative case is also presented. We report on the case of a 62-year-old male with a 7-year history of right-sided TN affecting the maxillary (V2) and mandibular (V3) territories. The patient underwent MVD using the interposition technique, where Teflon sponges were placed between the basilar artery and the nerve. Postoperatively, the patient experienced complete pain relief without neurological deficits. At 12 months follow-up, the patient remained pain-free and off medications. We performed an extensive literature review using PubMed, Scopus, and Web of Sciences, highlighting the most relevant studies and findings on the topic. The literature review showed that, while MVD is effective in providing long-term pain relief in VBD-induced TN, the choice between interposition and transposition techniques remains debated. Interposition is easier to perform but may inadvertently increase nerve compression in some cases, whereas transposition offers more definitive decompression but carries higher technical risks. Our case and the available literature highlight the importance of individualized treatment planning in achieving optimal outcomes for patients with VBD-induced TN. Further research is needed to refine surgical techniques and minimize complications in this subset of TN patients.

A Rare Case Report of Malignant Peripheral Nerve Sheath Tumor in the Infratemporal Fossa.

Introduction: Malignant peripheral nerve sheath tumors (MPNSTs) are rare tumors that develop from peripheral nerve sheath cells and they account for approximately 5% to 10% of all soft-tissue sarcomas. MPNSTs in the head and neck region represent approximately 2% to 6% of all head and neck sarcomas and account for 12% to 19% of all MPNSTs, and the infratemporal fossa is a rare site for MPNSTs. MPNSTs originating from the trigeminal nerve are extremely rare. Case presentation: A 19-year-old female presented with a 6-month history of left-sided facial pain and paresthesia on the same side. On examination, there was left-sided facial paresthesia at the third trigeminal nerve (V3) areas; computed tomography scanning and magnetic resonance imaging showed an infratemporal lesion and surgical resection was done. Histological examination and the immunostaining finding showed high-grade MPNST. Conclusion: MPNSTs in the head and neck region may manifest with nonspecific symptoms. The diagnosis often requires a combination of clinical, pathological, and immunohistochemistry studies. Treatment involves total surgical resection with adjuvant radiotherapy.

32 A randomized controlled trial of virtual reality-based distraction for intravenous cannulation-related distress in children

Abstract Background Children commonly experience under-treated pain and distress related to medical procedures, such as intravenous insertions (IVI), leading to both short- and long-term negative consequences for patients and their caregivers. Virtual reality (VR) has emerged as a promising tool to ameliorate procedure-related distress in the paediatric healthcare setting; however, existing evidence has largely employed custom VR software, which can be expensive and inaccessible. As such, we aimed to characterize whether commercially available VR applications are effective in reducing children’s procedure-related distress. Objectives To assess the effectiveness of commercially available VR-based distraction when added to standard of care (SOC, which included topical anesthetic cream), in reducing distress for children undergoing IVI in the paediatric emergency department (PED). Design/Methods Children aged 6 to 17 years requiring IVI in a Canadian PED were recruited for a two-arm randomized controlled trial. The primary outcome was child distress, measured using the Observational Scale of Behavioural Distress – Revised (OSBD-R, score range 0-23.5). Secondary outcomes included child pain intensity (measured with the Faces Pain Scale-Revised, score range 0-10) and caregiver anxiety [measured by the State-Trait Anxiety Inventory-State (STAI-S), score range 20-80] during the procedure. Trial registration number: NCT04291404C. Results 82 children and their caregivers were included. 41 children received VR distraction in addition to SOC (mean age 10.8 years, SD 3.0), while 41 children received SOC alone (mean age 11.3 years, SD 2.8). There was no significant difference between OSBD-R-measured distress in the VR arm (mean 1.05, SD 1.52) compared to the SOC arm (mean 0.71, SD 1.40) (p = 0.08). There was no significant reduction in procedural pain intensity in the VR group (mean 4.20,SD 3.10) compared to the SOC group (mean 4.10, SD 3.20) (p = 0.85). There was no difference in caregiver STAI-S score immediately following IVI in the VR arm (mean 32.3, SD 11.3) versus the SOC arm (mean 32.3, SD 11.9) (p = 0.86). Conclusion VR distraction therapy employing commercially available software was not associated with reduction in procedural distress or pain, above that provided with SOC in the PED, for children undergoing IVI. This result highlights the need for more accessible custom VR distraction software, created to meet the unique psychological needs of children undergoing medical procedures. Further study is needed to directly compare custom versus commercially available VR software for this application.

Unlocking the Potential of the Superficial Cervical Plexus Block in Chronic Pain Management: A Narrative Review and Single-Center, Retrospective Case Series.

Background/Objectives: The anesthetic block of the sensory branches of the superficial cervical plexus renders a specific area of the face, head, and anterior neck insensible and painless. Chronic pain in these areas can be difficult to diagnose and treat. In this report, we briefly review the existing evidence on the topic of the superficial cervical plexus block (SCPB) to set the context for our research. We then share our own clinical experience with the SCPB for managing chronic pain syndromes from both cancerous and non-cancerous etiologies. Methods: We first performed a comprehensive literature search and narrative review of clinical cases and studies that utilized the SCPB as an analgesic technique. We then conducted a retrospective case series of all patients who had received an SCPB at our pain clinic since 2020. Results: Our literature review found only a few cases reported, with most of them focusing on acute painful emergencies and perioperative pain syndromes and only very few addressing chronic pain. In our pain clinic, 14 patients received one or more SCPBs for chronic pain management. In 43% of these cases, the pain was related to cancer. The most common areas of pain corresponded to the regions supplied by the transverse cervical and great auricular nerves. The procedures were uneventful in all cases, and patients rated them as effective and worthwhile 71% of the time. Conclusions: Despite the lack of high-quality studies on SCPBs in pain management, the authors' experience suggests that it is a valid minimally invasive alternative for managing chronic face, head, and neck pain.

The Trigeminal Sensory System and Orofacial Pain

The trigeminal sensory system consists of the trigeminal nerve, the trigeminal ganglion, and the trigeminal sensory nuclei (the mesencephalic nucleus, the principal nucleus, the spinal trigeminal nucleus, and several smaller nuclei). Various sensory signals carried by the trigeminal nerve from the orofacial area travel into the trigeminal sensory system, where they are processed into integrated sensory information that is relayed to higher sensory brain areas. Thus, knowledge of the trigeminal sensory system is essential for comprehending orofacial pain. This review elucidates the individual nuclei that comprise the trigeminal sensory system and their synaptic transmission. Additionally, it discusses four types of orofacial pain and their relationship to the system. Consequently, this review aims to enhance the understanding of the mechanisms underlying orofacial pain.

Patient Safety and Quality Improvement in the Care of Musculoskeletal Orofacial Pain

Patient Safety and Quality Improvement in the Care of Musculoskeletal Orofacial Pain

Dosimetry model for photobiomodulation based on anthropometric and hemodynamic variables in patients with orofacial pain post-Covid-19: Study protocol for randomized clinical trial.

Orofacial pain and tension headache are symptoms that affect a large portion of the population, compromising productivity, social ability, and functional development. The treatment for reducing painful sensation should be chosen carefully, as pharmacological treatment may bring side effects and overload the organism of patients in pain. Low-level laser therapy has been used with local and systemic [vascular] applications for pain control. However, there is still uncertainty in the literature about the ideal dosimetric parameters for photobiomodulation treatment according to patient characteristics. The objective of this project is to validate a dosimetry model based on the relationship between the effects of photobiomodulation with anthropometric and hemodynamic variables, both in local application and systemic application in patients with symptoms of orofacial pain and tension headache. For this purpose, 180 participants with orofacial pain post-covid eligible participants will be randomly assigned to Group 1-Local Photobiomodulation, Group 2-Vascular Photobiomodulation, Group 3-Placebo Local Photobiomodulation, or Group 4-Placebo Vascular Photobiomodulation [Therapy EC-DMC device, São Carlos, Brazil,- 660 nm, 100mW] using stratified block randomization. Before the application, sociodemographic information such as age, skin phototype [classified by the Fitzpatrick scale], weight, height, body mass index [BMI], oxygen saturation [SaO2], blood pressure [BP], heart rate [HR], and thickness of skin, fat, and facial muscles will be collected. During the application, we will collect local temperature, SaO2, BP, and HR. Before and after laser application, blood levels of lactate and hemoglobin, BP, and HR will be measured in the first and last session. In addition to demographic, anthropometric, and hemodynamic variables, the penetrated energy will be quantified using a power meter, and information from orofacial pain and headache symptom questionnaires will be analyzed. The Monte Carlo simulation technique will be used to systematically study the relationship between the light penetration profile into the target tissues and the most relevant variables, namely BMI, tissue layer thicknesses, and skin phototype. Light transmittance, measured in vivo and simulated, will be compared to validate a personalized dosimetry model. The results of this study contribute to validating a Monte Carlo Simulation model to calculate the appropriate dosimetry for photobiomodulation therapies in the control of patients with Post-Covid-19 orofacial pain. Trial registration number: NCT06065969.

Clinical spectrum and prevalence of temporomandibular joint disorder: A hospital-basedanalysis

Objective: The objective of this study was to determine frequency of temporomandibular joint disorders and its severity among patients presenting with complaints of pain at tempo mandibular joint. Materials and methods: A total of 205 patients were selected in this study, the research has been done in unit of oral and maxillofacial surgery at darul-sehat hospital, Karachi. Patients, age 18 to 40 years, with history of diabetes, hypertension, habits of pan/chalia and smoking presented with complain of pain at temporomandibular joint for a period of two weeks were recruited in study. Patients with history of bone & neurological disorder, taking immunosuppressant drug, trauma or surgery of temporomandibular joint were excluded from study. Examinations were carried out by single researcher to ensure the continuity and reliability of answers and interpretation of results. This will also help to eliminate inter-observer biases. Data gathered using a questionnaire and analyzed using SPSS software version 20. Results: A total of 205 patients which fulfilled the inclusion criteria were included in the study, including 99(48.3%) males and 106(51.7%) females. The age ranged from 18-40 years were included, belonging to age 15-20 years n=73(35.3%), 21-25 years n=65(31.4%), 26-30 years n=2(1%), 31-35 years n=60 (29%), and 36-40% years n=5 (2.4%). Around 42 (20.5%) patients had history of hypertension while 40 (19.5%) had diabetes, for which they were taking their medicines. History of smoking was seen among 38 (18.5%) patients.Disease was categorized as mild in 98 (47.8%) patients, moderate in 88 (42.9%) patients and severe in 19 (9.3%) patients. Around 158 (77.1%) had unilateral and 47 (22.9%) had bilateral disorder. Out of 205 patients most of them had temporomandibular joint disorder 192(93.7%). Conclusion: temporomandibular joint disorder is most common cause of orofacial pain and requires thorough knowledge and adequate examination to diagnose the disorder.

Bihemispheric IDH-Wildtype Glioblastoma with Unilateral FGFR3-TACC3 Fusion in Patient with Breast Cancer History: A Case Report and Literature Review

Abstract Introduction/Objective Adult IDH-wild type glioblastomas comprise a heterogeneous spectrum of neoplasms, characterized by poor prognosis and resistance to the chemoradiotherapy. For WHO integrated diagnosis classification and to establish treatment options, molecular analysis is necessary. Herein, we present a case of a glioblastoma, IDH-wildtype with involvement of both cerebral hemispheres and an uncharacteristic in-frame fusion limited to one hemisphere. Methods/Case Report The patient is a 52-year-old woman with past medical history of metastatic breast cancer who presented with headache and worsening facial pain. Brain magnetic resonance imaging brain demonstrated a right frontal lobe lesion with vasogenic edema. The patient was treated with Gamma Knife radiosurgery. Scans revealed enlargement and a new left frontal lobe lesion. Bihemispheric tumor resection and GammaTile placement was undertaken. Results (if a Case Study enter NA) Histologically, the tumor was composed of hypercellular astrocytes, microvascular proliferation, and necrosis with no evidence of metastatic disease. Immunohistochemistically, neoplastic cells showed glial fibrillary acidic protein expression and elevated Ki-67 proliferation index. Molecular examination revealed in the right hemisphere lesion post-radiation (1) FGFR3::TACC3 (exon 17::exon 11) fusion and (2) TERT promoter, while the left hemisphere lesion which did not receive radiation showed clinically relevant variants in (1) TERT promoter, (2) TP53, (3) NF1, and (3) PIK3CA without identification of a fusion. An integrated diagnosis of glioblastoma, IDH- wildtype, CNS WHO grade 4 was established bilaterally. Conclusion The fibroblast growth factor receptor 3 (FGFR3)-transforming acidic coiled-coil 3 (TACC3) fusion is identified as a rare molecular feature in glioblastomas with an estimated prevalence of 4%. Clinical trials suggest that F3T3-positive tumors have a better prognosis than those without the translocation. The identification of the oncogenic FGFR3-TACC3 fusion highlights the possibility of identifying patients potentially responsive to targeted therapy with FGFR kinase inhibitors. The significance of the molecular differences in the right and left hemisphere lesions is uncertain; glioblastomas are heterogeneous tumors with intra-and intertumoral heterogeneity but it may suggest independent origins.