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Endoscopy Dec 2024
Topics: Humans; Endoscopic Mucosal Resection; Hypopharynx; Carcinoma
PubMed: 38262458
DOI: 10.1055/a-2233-3082 -
BMC Anesthesiology Jan 2024Dyclonine hydrochloride mucilage is a topical anaesthetic formulated for mucosal surfaces. It is employed frequently for topical anaesthesia of the pharynx prior to...
BACKGROUND
Dyclonine hydrochloride mucilage is a topical anaesthetic formulated for mucosal surfaces. It is employed frequently for topical anaesthesia of the pharynx prior to endoscopic examinations such as electronic gastroscopy, and few adverse reactions have been reported. This article describes a patient who experienced a transient but severe disturbance of consciousness following oral dyclonine hydrochloride mucilage administration.
CASE PRESENTATION
A 75-year-old female presenting with gastrointestinal bleeding was examined by electronic gastroscopy. Six minutes after oral dyclonine hydrochloride mucilage administration, the patient entered a comatose-like state accompanied by loss of limb muscle tone and profuse perspiration. This response was not accompanied by changes in cardiac rhythm, blood pressure, or respiration rate, suggesting an effect on higher brain centres. After ten minutes, the patient's symptoms were alleviated.
CONCLUSION
We suggest that sites of dyclonine hydrochloride mucilage use be equipped with appropriate rescue devices for these rare events.
Topics: Female; Humans; Aged; Consciousness; Brain; Administration, Oral; Anesthesia, Local; Propiophenones
PubMed: 38254013
DOI: 10.1186/s12871-024-02407-x -
Journal of Dentistry Feb 2024To assess the performance, time-efficiency, and consistency of a convolutional neural network (CNN) based automated approach for integrated segmentation of...
OBJECTIVES
To assess the performance, time-efficiency, and consistency of a convolutional neural network (CNN) based automated approach for integrated segmentation of craniomaxillofacial structures compared with semi-automated method for creating a virtual patient using cone beam computed tomography (CBCT) scans.
METHODS
Thirty CBCT scans were selected. Six craniomaxillofacial structures, encompassing the maxillofacial complex bones, maxillary sinus, dentition, mandible, mandibular canal, and pharyngeal airway space, were segmented on these scans using semi-automated and composite of previously validated CNN-based automated segmentation techniques for individual structures. A qualitative assessment of the automated segmentation revealed the need for minor refinements, which were manually corrected. These refined segmentations served as a reference for comparing semi-automated and automated integrated segmentations.
RESULTS
The majority of minor adjustments with the automated approach involved under-segmentation of sinus mucosal thickening and regions with reduced bone thickness within the maxillofacial complex. The automated and the semi-automated approaches required an average time of 1.1 min and 48.4 min, respectively. The automated method demonstrated a greater degree of similarity (99.6 %) to the reference than the semi-automated approach (88.3 %). The standard deviation values for all metrics with the automated approach were low, indicating a high consistency.
CONCLUSIONS
The CNN-driven integrated segmentation approach proved to be accurate, time-efficient, and consistent for creating a CBCT-derived virtual patient through simultaneous segmentation of craniomaxillofacial structures.
CLINICAL RELEVANCE
The creation of a virtual orofacial patient using an automated approach could potentially transform personalized digital workflows. This advancement could be particularly beneficial for treatment planning in a variety of dental and maxillofacial specialties.
Topics: Humans; Artificial Intelligence; Spiral Cone-Beam Computed Tomography; Image Processing, Computer-Assisted; Neural Networks, Computer; Cone-Beam Computed Tomography
PubMed: 38163456
DOI: 10.1016/j.jdent.2023.104829 -
Cureus Nov 2023Background Oral submucous fibrosis (OSMF) is a chronic, progressive, and potentially malignant oral disorder that causes scarring of the oral cavity, pharynx, and...
Background Oral submucous fibrosis (OSMF) is a chronic, progressive, and potentially malignant oral disorder that causes scarring of the oral cavity, pharynx, and upper oesophagus. It is most common in Southeast Asia, but it is also found in other parts of the world. Oral potentially malignant disorders (OPMDs) are a group of oral lesions that have an increased risk of developing into oral cancer. The study aimed to evaluate the prevalence of OSMF associated with other OPMDs. The presence of multiple OPMDs existing in one patient is a significant finding, as it is associated with an elevated risk of developing malignancy. The risk of malignant transformation increases with the number of OPMDs present in a patient; patients with two OPMDs have a three to four times higher risk of developing malignancy than those with a single OPMD. Patients with three or more OPMDs have a 7-10 times higher risk and the risk of malignant transformation depends on the type of OPMD. Materials and methods The study was conducted in the Department of Oral Medicine and Radiology, Saveetha Dental College and Hospitals, Chennai, India, to investigate the prevalence of OSMF with other OPMDs. The study team retrieved 630 case records of patients with OSMF from the electronic database between January 2018 and March 2023. All of the patients in the study had OSMF, as well as other OPMDs such as leukoplakia, candidiasis, actinic cheilitis, dyskeratosis congenita, erythroplakia, lichen planus, sideropenic dysphagia (Plummer-Vinson syndrome), and discoid lupus erythematosus. Both clinical and histopathological examinations confirmed these diagnoses. Oral mucosal lesions without coexisting OSMF were excluded. The study was done on the basis of age group, habits, type of habits, associated coexisting lesions, and systemic condition. Results The patients were clinically examined and diagnosed. Of the 630 cases, 10% had OSMF with OPMDs. The most common OPMDs associated with OSMF were leukoplakia (86%), followed by candidiasis (12%) and both leukoplakia and candidiasis (2%). Based on gender, the incidence of OSMF was higher in males compared to females with 67% and 33%, respectively. Conclusion OSMF is more likely to develop into malignancy; the widespread use of areca nut products in India has contributed to the rising incidence of OSMF. Accumulating epidemiological data can help to identify high-risk populations for prevention and control measures. Earlier oral cancer diagnosis and treatment can increase the likelihood of a favourable outcome.
PubMed: 38161840
DOI: 10.7759/cureus.49642 -
Asian Pacific Journal of Cancer... Dec 2023Chemoradiotherapy is the standard treatment for advanced Oropharyngeal squamous cell carcinoma (OPSCC). Upcoming hypofractionation has led to better compliance and...
AIMS
Chemoradiotherapy is the standard treatment for advanced Oropharyngeal squamous cell carcinoma (OPSCC). Upcoming hypofractionation has led to better compliance and non-inferior results in various sites such as breast and prostate cancer etc. This study prospectively compared a dose-intensified schedule in advanced OPSCC with standard hypofractionation.
MATERIALS AND METHODS
Patients with advanced stage III and IV OPSCC suitable for radical chemoradiotherapy were eligible. Patients were alternatively allocated to both the treatment arms. Arm A planned to receive 64 Gy in 25 fractions (#) with concurrent cisplatin and Arm B received standard fractionation 70 Gy in 35 # with concurrent cisplatin. All patients completed a median follow up of 6 to 18 months. The primary end point was acute toxicity (less than 3 months) and late toxicity at 1 year. Secondary end point was disease free survival and overall survival at 1 year.
RESULTS
44 patients in arm A and 49 patients in arm B were recruited over 18 months. 34 patients completed full-dose radiotherapy in both arms. Maximum acute toxicity in arm A in terms of skin reaction was Grade II in 47.05% cases and mucositis grade II in 67.6% cases. In arm B grade II skin toxicity was seen in 47.1% and mucositis grade II was seen in 79.4 % cases. Ryle's tube dependency was seen in 38.2 % cases in arm A and 50% in arm B. Complete response rate at 3 months was equivalent in both arms in Arm A (100%), and in Arm B (96.7%). Disease free survival (DFS), Overall survival (OS) at 3 month, 6 months, and 12 months was comparable.
CONCLUSIONS
64 Gy in 25 fractions with concomitant chemotherapy is tolerable in patients with equivalent results and better compliance. Shorter fractionation schedule is more acceptable and we look forward for more randomized control trials.
Topics: Humans; Male; Antineoplastic Combined Chemotherapy Protocols; Carcinoma, Squamous Cell; Chemoradiotherapy; Cisplatin; Head and Neck Neoplasms; Mucositis; Oropharynx; Prospective Studies; Squamous Cell Carcinoma of Head and Neck; Female
PubMed: 38156840
DOI: 10.31557/APJCP.2023.24.12.4077 -
Frontiers in Immunology 2023Adaptive humoral immunity against SARS-CoV-2 has mainly been evaluated in peripheral blood. Human secondary lymphoid tissues (such as tonsils) contain large numbers of...
BACKGROUND
Adaptive humoral immunity against SARS-CoV-2 has mainly been evaluated in peripheral blood. Human secondary lymphoid tissues (such as tonsils) contain large numbers of plasma cells that secrete immunoglobulins at mucosal sites. Yet, the role of mucosal memory immunity induced by vaccines or natural infection against SARS-CoV-2 and its variants is not fully understood.
METHODS
Tonsillar mononuclear cells (TMNCs) from adults (n=10) and children (n=11) were isolated and stimulated using positive SARS-CoV-2 nasal swabs. We used endpoint enzyme-linked immunosorbent assays (ELISAs) for the measurement of anti-S1, -RBD, and -N IgG antibody levels and a pseudovirus microneutralization assay to assess neutralizing antibodies (nAbs) in paired serum and supernatants from stimulated TMNCs.
RESULTS
Strong systemic humoral response in previously SARS-CoV-2 infected and vaccinated adults and children was observed in accordance with the reported history of the participants. Interestingly, we found a significant increase in anti-RBD IgG (305 and 834 folds) and anti-S1 IgG (475 and 443 folds) in the stimulated TMNCs from adults and children, respectively, compared to unstimulated cells. Consistently, the stimulated TMNCs secreted higher levels of nAbs against the ancestral Wuhan strain and the Omicron BA.1 variant compared to unstimulated cells by several folds. This increase was seen in all participants including children with no known history of infection, suggesting that these participants might have been previously exposed to SARS-CoV-2 and that not all asymptomatic cases necessarily could be detected by serum antibodies. Furthermore, nAb levels against both strains were significantly correlated in adults (r=0.8788; = 0.0008) and children (r = 0.7521; = 0.0076), and they strongly correlated with S1 and RBD-specific IgG antibodies.
CONCLUSION
Our results provide evidence for persistent mucosal humoral memory in tonsils from previously infected and/or vaccinated adults and children against recent and old variants upon re-exposure. They also highlight the importance of targeting mucosal sites with vaccines to help control infection at the primary sites and prevent potential breakthrough infections.
Topics: Adult; Child; Humans; Immunity, Humoral; Palatine Tonsil; SARS-CoV-2; COVID-19; Immunoglobulin G; Antibodies, Neutralizing; Vaccines
PubMed: 38149243
DOI: 10.3389/fimmu.2023.1291534 -
Biomedicines Dec 2023(1) Background: Postdural puncture headache (PDPH) remains a serious complication in obstetric patients. While the epidural blood patch represents the current gold...
(1) Background: Postdural puncture headache (PDPH) remains a serious complication in obstetric patients. While the epidural blood patch represents the current gold standard in therapy, a growing number of alternative measures are thought to be beneficial for clinical management. The purpose of this study was to retrospectively analyze the efficacy of intranasal lidocaine administration to treat PDPH in obstetrics at our university hospital; (2) Methods: A retrospective analysis of the medical records of patients with PDPH has been performed focusing on the techniques of administration, dosing, treatment duration, impact on pain intensity as well as side effects of intranasal lidocaine; (3) Results: During the study period, 5610 obstetric patients received neuraxial anesthesia, of whom 43 (0.77%) developed PDPH. About one third of the patients with PDPH after spinal anesthesia ( = 8), epidural anesthesia ( = 5) or both ( = 2) were treated with intranasal lidocaine. Lidocaine was administered either via gauze compresses (GC, = 4), a mucosal atomization device (MAD, = 8) or with a second-line mucosal atomization device due to low gauze compress efficacy ( = 3). All patients treated with lidocaine refused the epidural blood patch. Nebulization of lidocaine resulted in a significant reduction in pain intensity after the first dose ( = 0.008). No relevant side effects developed except sporadic temporal pharyngeal numbness. The utilization of the mucosal atomization device averted the necessity for an epidural blood patch, whether employed as the primary or secondary approach; (4) Conclusions: Our data imply that the mucosal atomization device enhances the efficacy of intranasal lidocaine administration in obstetric patients suffering from PDPH.
PubMed: 38137518
DOI: 10.3390/biomedicines11123296 -
Endoscopy Dec 2023
Topics: Humans; Endoscopic Mucosal Resection; Artificial Intelligence; Hypopharynx; Carcinoma in Situ; Dissection
PubMed: 38086415
DOI: 10.1055/a-2208-3412 -
Cureus Nov 2023Gonorrhea is a sexually transmitted disease caused by and has a wide clinical spectrum that can range from asymptomatic to disseminated disease. Most women with...
Gonorrhea is a sexually transmitted disease caused by and has a wide clinical spectrum that can range from asymptomatic to disseminated disease. Most women with gonorrhea are asymptomatic and if left untreated, it can lead to serious complications like pelvic inflammatory disease (PID) and infertility. Disseminated gonococcal infection (DGI) is usually characterized by dermatitis, tenosynovitis, and septic arthritis but rarely can also cause bacteremia, endovascular infections, osteomyelitis, and meningitis. Gonococcal bacteremia is regarded as a disseminated disease and is typically associated with infection of the mucosal surfaces such as the urethra, endocervix, and pharynx. This report, to the best of our knowledge, presents a case of DGI associated with a mediport catheter in a patient with breast cancer without any history of gonococcal symptoms. She was monogamous and denied any history of sexually transmitted infections. The patient presented with fever and chills associated with pain and purulent discharge from the mediport catheter site. The mediport catheter was removed, and antibiotics were initiated. Both blood and wound cultures grew . She completed a 10-day course of ceftriaxone and improved clinically with complete remission of her symptoms. A review of the literature on the reported cases of DGI associated with bacteremia and endovascular infections is also presented.
PubMed: 38046706
DOI: 10.7759/cureus.48180