Prevalence of human papillomavirus in oral rinse samples from healthy individuals in northern Thailand.

BACKGROUND: The incidence of oral cancers associated with human papillomavirus (HPV) has been increasing in recent years. Therefore, it is necessary to elucidate HPV prevalence in oral cells and exposure to risk factors in various age groups. METHODS: Oral rinse samples from healthy individuals in northern Thailand were investigated for HPV prevalence and genotyped using the polymerase chain reaction (GP5+/6+ primers) and DNA sequencing of the PCR products. RESULTS: Samples were collected from 594 participants between 4 and 60 years of age. HPV was detected in 3.7% of samples. The prevalence of HPV-positive cases was 8.6% in the 31-50 age group. HPV prevalence increased with age and was the highest (9.2%) in the 41-50 age group, but decreased (to 3%) in the 51-60 age group. Risk factors significantly associated with HPV-positive cases included alcohol consumption, coffee drinking, sexual activity, and having children. HPV 16 and 18 were common genotypes, especially in the 31-50 age group, and were associated with having sexual activity (odds ratio 19.0 [95% CI: 2.5-142.5]). At follow-up of some individuals in the 4-10 age group, a 9-year-old child was found to be positive for HPV18. CONCLUSIONS: These results suggest that HPV can be acquired at a young age and the prevalence peaks in the middle age class among healthy individuals in northern Thailand, especially in the 31-50 age group.

Association of Epstein-Barr virus infection with oral squamous cell carcinoma in a case-control study.

BACKGROUND: Besides the well-known risk factors, Epstein-Barr virus (EBV) might play a significant role in oral squamous cell carcinoma (OSCC). To explore the role of EBV in OSCC, the prevalence of EBV infection in oral exfoliated cells of OSCC cases and controls in northeastern Thailand was investigated, and the association of EBV in tumor lesion cells was further confirmed. METHODS: Oral exfoliated cells were collected from OSCC cases and non-cancer controls. Cells from tumor lesions were taken from OSCC patients for further strong confirmation of the association of EBV with OSCC. EBV DNA was detected by polymerase chain reaction (PCR) using primers specific for EBV DNA polymerase. The EBV DNA positive samples were confirmed further by nested PCR. RESULTS: Epstein-Barr virus was detected in the oral exfoliated cells of 45.05% of OSCC patients and 18.08% of the non-cancer control (P < 0.001). Similarly, EBV was detected in 32.5% of the tumor lesions. Betel quid chewing was statistically significantly associated with EBV prevalence (OR = 2.08), whereas no association with tobacco smoking and alcohol consumption. Alcohol consumption and betel quid chewing were significantly associated with OSCC (OR = 3.05 and OR = 5.05, respectively), but tobacco smoking was not associated. Interestingly, EBV was significantly associated with OSCC (OR = 3.76). CONCLUSIONS: Epstein-Barr virus prevalence is associated with OSCC and seems to be enhanced by betel quid chewing, suggesting that EBV may, together with betel quid chewing, act as an important etiological risk factor of OSCC.

Use of ketamine in Super Refractory Status Epilepticus: a systematic review.

OBJECTIVE: This review specifically investigates ketamine's role in SRSE management. METHODS: PubMed, EMBASE, and Google Scholar databases were searched from inception to May 1st, 2023, for English-language literature. Inclusion criteria encompassed studies on SRSE in humans of all ages and genders treated with ketamine. RESULTS: In this systematic review encompassing 19 studies with 336 participants, age ranged from 9 months to 86 years. Infections, anoxia, and metabolic issues emerged as the common causes of SRSE, while some cases had unknown origins, termed as NORSE (New Onset RSE) or FIRESs (Febrile Infection-Related Epilepsy Syndrome). Most studies categorized SRSE cases into convulsive (N = 105) and non-convulsive (N = 197). Ketamine was used after failed antiepileptics and anesthetics in 17 studies, while in others, it was a first or second line of treatment. Dosages varied from 0.5 mg/kg (bolus) and 0.2-15 mg/kg/hour (maintenance) in adults and 1-3 mg/kg (bolus) and 0.5-3 mg/kg/hour (maintenance) in pediatrics, lasting one to 30 days. Ketamine was concurrently used with other drugs in 40-100% of cases, most frequently propofol and midazolam. Seizure resolution rate varied from 53.3 to 91% and 40-100% in larger (N = 42-68) and smaller case series (N = 5-20) respectively. Seizure resolution occurred in every case of case report except in one in which the patient died. Burst suppression in EEG was reported in 12 patients from two case series and two case reports. Recurrence was reported in 11 patients from five studies. The reported all-cause mortality varied from 38.8 to 59.5% and 0-36.4% in larger and smaller case series., unrelated directly to ketamine dosage or duration. SIGNIFICANCE: Ketamine demonstrates safety and effectiveness in SRSE, offering advantages over GABAergic drugs by acting on NMDA receptors, providing neuroprotection, and reducing vasopressor requirement.

Postoperative Nausea and Vomiting in Patients Undergoing Laparoscopic Cholecystectomy under General Anaesthesia in a Tertiary Care Centre: A Descriptive Cross-sectional Study.

INTRODUCTION: Postoperative nausea and vomiting are frequent complications after laparoscopic cholecystectomy. Several risk factors have been associated with postoperative nausea and vomiting. This study aimed to find out the prevalence of postoperative nausea and vomiting in patients undergoing laparoscopic cholecystectomy under general anaesthesia in a tertiary care centre. METHODS: A descriptive cross-sectional study was conducted among the patients undergoing laparoscopic cholecystectomy under general anaesthesia at a tertiary care centre from 1 July 2021 to 30 April 2022 after receiving ethical approval from the Institutional Review Committee (Reference number: 050-077/078). Convenience sampling was done. All the patients received antiemetic prophylaxis with ondansetron. The general anaesthetic technique was standardised in all the patients. They were followed up 24 hours after surgery for an episode of nausea and vomiting. Point estimate and 95% Confidence Interval were calculated. RESULTS: Among 200 patients, postoperative nausea and vomiting were seen in 28 (14%) (9.19-18.81, 95% Confidence Interval). Among them, 7 (25%) of the patients experienced post-operative vomiting as well. CONCLUSIONS: The prevalence of postoperative nausea and vomiting among patients undergoing laparoscopic cholecystectomy in our study was lower when compared to other studies conducted in similar settings.

A rare incidental finding of an isolated S1 butterfly vertebra: A case report.

Butterfly vertebra is an uncommon type of vertebral anomaly (sometimes referred to as a sagittal cleft vertebra or an anterior rachischisis) caused by persistent notochordal tissue. Butterfly vertebrae of S1, which is rarer anomaly compared to thoraco-lumbar region, may be associated with syndromic causes and usually asymptomatic with a funnel shaped defect seen in imaging which can later give rise to disk problems, facet joint degeneration and chronic low back pain. We here share a case of 35-year female presented with intermittent low back pain diagnosed with S1 butterfly vertebrae as an incidental finding in radiograph and magnetic resonance imaging. Radiologist and orthopedicians should be vigilant about this rare entity as a differential of low back pain and its association with other syndromes.

Neurobrucellosis: A differential not to be missed in patients presenting with neuropsychiatric features.

When a patient presents with undulating fever and neuropsychiatric features, neurobrucellosis should be considered as a differential diagnosis. If diagnosed early, neurobrucellosis is a treatable disease with a favorable outcome.