Assessment of sleep knowledge among medical and dental students in a Nigerian tertiary institution: a cross-sectional study.

PURPOSE: Sleep medicine is a rapidly growing field of Medicine globally. However, studies are lacking on the knowledge of Nigerian medical and dental students on sleep and the different types of sleep disorders. Thus, we assessed the knowledge, interest and awareness of Nigerian medical and dental students about sleep medicine. We also determined the factors associated with sleep knowledge among the medical and dental students. METHODS: We conducted this cross-sectional study from June to September 2021, among medical students at the Obafemi Awolowo University, Ile-Ife, Nigeria. The students' knowledge of sleep was assessed with the Assessment of Sleep Knowledge in Medical Education (ASKME) survey. The participants were classified as having low or high scores based on the proportion who gave a correct answer to 60% of the questions. RESULTS: Among the 488 students who completed the questionnaire, there was a male preponderance (55%). About three-quarters of the respondents (376, 77%) had a low sleep knowledge score. Age, year of study, and awareness about sleep medicine were the predictors of sleep knowledge. CONCLUSION: A significant proportion of the medical students had poor sleep knowledge scores. There is a need to incorporate teaching sleep medicine in the curriculum of medical students early in their training.

Prevalence and Predictors of Post-Thyroidectomy Voice Dysfunction in a Nigerian Cohort.

BACKGROUND: Advances in surgical techniques have significantly improved the safety of thyroidectomy. Quality of life issues, such as voice changes, however continue to be important considerations. This study evaluated the prevalence and determinants of voice changes following thyroidectomies for non-malignant goiters in a Nigerian Hospital. METHODOLOGY: Consecutive adults who had thyroidectomy for non-malignant goiters were evaluated. Preoperatively, each participant had laryngoscopy and voice assessment using the Voice Handicap Index-10. At surgery, the intubation difficulty score, size of endotracheal tubes, and duration of operation were recorded. Laryngoscopy and VHI-10 assessments were repeated 1 week, 1 month, and 3 months after surgery. Pre and postoperative assessments were compared. RESULT: Fifty-four patients completed the study. Subtotal thyroidectomy was the commonest operation performed in 17 patients (31.48%), with 14 (25.93%) having total thyroidectomy. Baseline median VHI-10 score was 6.5(IQR-10). Five patients had abnormal preoperative laryngoscopy findings (benign vocal cord lesions). Postoperatively, seven patients had endoscopic evidence of vocal cord paralysis, six were unilateral while one was bilateral. Ten patients (18.5%) had early voice changes. Median VHI-10 score at one week was significantly higher than baseline (10 vs. 6.5, p = 0.01). At 3 months, VHI-10 reverted back to baseline in five of the ten patients while five patients (9.3%) had persistent voice changes. Abnormal endoscopic findings predicted the occurrence of early postoperative voice changes. CONCLUSION: Thyroidectomy for non-malignant goiters is associated with transient voice changes, many of which revert to normal over time. Abnormal endoscopic findings predict its occurrence.

Dental Arch Dimensions of Nigerian Children with Hypertrophied Adenoids.

OBJECTIVE: The study objective was to assess the effect of adenoid hypertrophy on the dental arch dimensions of children in Ile-Ife, Nigeria. METHODS: Ninety patients aged 3-12 years attending the Otorhinolaryngology Clinic at Obafemi Awolowo University Teaching Hospital Ile-Ife diagnosed as having hypertrophied adenoids and 90 children from the Child Dental Health Clinic were recruited as adenoid and control subjects respectively. Arch and palatal vault dimensions, including total arch length; inter-canine, inter-premolar, and inter-molar widths; palatal length; and palatal heights measured at three levels and palatal volume were determined for both groups from dental casts. RESULTS: Maxillary arch dimensions were shorter in the adenoid group than the control group; however, only total maxillary arch length was significantly shorter (p=0.049). Mandibular arch dimensions with the exception of inter-molar width were significantly shorter in the adenoid group (p<0.05). Adenoid subjects had significantly increased palatal heights at canine, premolar, and molar levels and reduced palatal volume compared to the control subjects (p<0.05). CONCLUSION: Adenoid subjects demonstrated shorter maxillary and mandibular arch dimensions compared with control subjects, with the differences being more evident in the lower arch. They also exhibited increased palatal heights at all levels and reduced palatal volume compared with control subjects.

Occlusal characteristics of children with hypertrophied adenoids in Nigeria.

BACKGROUND: Nasorespiratory function and its relation to craniofacial growth are of great interest because of the basic biological relationship between form and function, and the accumulating findings of the relationship between mode of breathing, craniofacial growth and orthodontic treatment. OBJECTIVES: The aim of this study was to evaluate the effect of adenoid hypertrophy and sociodemographic variables on the occlusion of children. METHODOLOGY: A total of 180 subjects aged 3-12 years were selected at the Obafemi Awolowo University Teaching Hospital Complex, Ile-Ife, Nigeria. Ninety subjects had hypertrophied adenoids while 90 normal children served as the control group. Orthodontic examinations were carried out and impressions for study models taken. Occlusion was assessed in the anterior-posterior, transverse and vertical planes. RESULTS: Class I relationship was the most prevalent occlusion in both adenoid and control subjects (55.6% and 72.2%, respectively). The occurrence of class II division 1 was significantly higher among adenoid than control subjects (P=0.003). Posterior crossbites occurred significantly more in adenoid subjects in the 9-12 years category. In the vertical plane, the occurrence of deep bite was significantly greater in male than female adenoid subjects. Age had a statistically significant but weak correlation with anterior open bite (r=0.37). Age and BMI also had significant though weak correlations with posterior crossbite in female adenoid subjects (r=0.39 and r=0.36, respectively). Regression analysis also showed that age had a significant effect on the occurrence of anterior open bite, while BMI had a significant effect on the occurrence of class II occlusion in adenoid subjects (P<0.05). CONCLUSION: The presence of hypertrophied adenoids affects the occlusion in the three planes. Age and BMI have significant effects on the occurrence of anterior open bite and class II division 1 malocclusion respectively in adenoid subjects.

Compound elevated skull fracture: a forgotten type of skull fracture.

BACKGROUND AND OBJECTIVE: We report 4 patients who presented with a rare type of vault fracture. This form of fracture has only been described in few instances in the literature. CASE DESCRIPTION: All the patients presented with elevation of free skull fracture fragments. The etiologies were assault (1 patient), domestic accident (1 patient), and road traffic accident (2 patients). All the fractures were compound as in previously reported cases. Delay in surgery resulted in cerebral abscess in 1 patient. Surgery was performed in all the patients: wound debrident, duroplasty, and reduction of fracture in 3 patients and craniotomy with excision of abscess in 1 patient. Two of the patients did well after surgery. The patients with abscess died 9 days after surgery. Another patient developed CSF fistula after surgery, and died of aspiration while waiting for the closure of the fistula. CONCLUSION: Elevated skull fractures in our series were all compound fractures. Both long, sharp objects as well as blunt objects can cause this injury. Delay in surgery could result in intracranial sepsis. We suggest that this fracture should be included in the classification of skull fractures.