Diagnostic accuracy of flexible fiberoptic laryngoscopy: experience from a tertiary health institution in Nigeria.

BACKGROUND: Flexible fibreoptic laryngoscopy (FFL) is a technique of laryngeal visualization. The instrument (flexible laryngoscope) is relatively scarce in resource challenged countries. Where available, it is a useful compliment to the armamentarium of clinical tools at the disposal of the otolaryngologist. We evaluated the diagnostic value of flexible fibreoptic laryngoscope in a tertiary health institution in Nigeria. And we hypothesized that its diagnostic precision is comparable to direct laryngoscopy. METHODS: This is a retrospective study of records of 360 patients referred for FFL at the ENT clinic. Sensitivity and specificity of FFL for laryngeal lesions were determined using direct laryngoscopy (DL) as the gold standard. RESULTS: Of the 360 FFL reports studied, 336 additionally underwent DL. FFL findings in 311 (92.6%) cases were comparable with that of DL. FFL had a good detection rate for vocal cord palsy (sensitivity 100%, specificity 80.7%). Pick-up rate for vocal nodules, polyps, papillomatosis and palsy were statistically equal for FFL and DL (p value = 0.96). Diagnostic accuracy of FFL was good for supraglottic (sensitivity 100%, specificity 88.0%) and glottic (sensitivity 100%, specificity 92.3%) tumours; relatively lower for subglottic (sensitivity 83.3%; specificity 100%) and transglottic (sensitivity 80.0%, specificity 100%) tumours; and least for tumours involving more than on subsites (sensitivity 50%, specificity 100%). CONCLUSION: The sensitivity and specificity of FFL were not the same for all endo-laryngeal lesions; yet, the overall diagnostic accuracy of FFL is comparable with DL. Clinicians should be mindful of this variability to optimize its application.

Clinical Parameters, Management, and Outcomes of Childhood Traumatic Brain Injury in Ilorin.

BACKGROUND: Traumatic brain injury (TBI) is common among children, accounting for 75% of children hospitalized for trauma. Childhood TBI is a leading cause of death from trauma in the pediatric age group and the incidence is on the rise globally. OBJECTIVE: The objective of this study was to determine the etiology, management, and outcome of childhood TBI in our setting. SUBJECTS AND METHODS: This is a retrospective study of all cases of childhood TBI. Relevant data extracted from case records were analyzed using a 2011 Statistical Package for the Social Sciences (SPSS; IBM, Armonk, New York) software for Windows, version 20. RESULTS: A total of 168 children with TBI were studied. Of which, 109 (65%) were males and 59 (35%) were females (male/female ratio of 13:7, mean age, 7 ± 4 years). Most of the injuries (138, 82%) occurred outdoor; road traffic crash and fall accounted for 101 (60.1%) and 47 (27.9%) cases, respectively. Pedestrian motor vehicular accident accounted for 41 (41.8%) cases, whereas 30 (30.6%) were due to motorcycle road traffic crash. Good recovery was recorded in 138 (81%) patients, 22 (13.1%) had moderate disability. Mortality rate was 6%. CONCLUSION: Brain injury from trauma still constitutes a significant part of childhood morbidity and mortality in our setting; these deaths are avoidable in most cases. The outlook can be better if preventive efforts are geared toward domestic and road safety campaign.

Atorvastatin attenuates testosterone-induced benign prostatic hyperplasia in rats: role of peroxisome proliferator-activated receptor-γ and cyclo-oxygenase-2.

Diabetes and obesity have been reported to alter sex steroid hormone metabolism. In this study, an attempt was made to investigate the protective effect of atorvastatin (ATR) in combination with celecoxib (CEL) or pioglitazone (PIO) on testosterone-induced BPH in rats. Male Wistar rats (200-250 g) were randomly divided into nine groups (n = 8) and orally treated as follows for 28 consecutive days: group 1: vehicle control (10 mL/kg); group 2: vehicle testosterone (10 mL/kg); groups 3 - 5: ATR (0.5, 2.5, and 5 mg/kg, respectively); group 6: CEL (20 mg/kg); group 7: PIO (20 mg/kg); and groups 8-9: ATR 0.5 mg/kg, and 15 min later, animals were given CEL (20 mg/kg) or PIO (20 mg/kg), respectively. One hour post-treatment, animals in groups 2-9 were given testosterone propionate (3 mg/kg, s.c.). Twenty-four hours after last treatment on day 28, blood was collected for serum testosterone and prostate-specific antigen (PSA) analysis. Prostate was harvested for biochemical and histological assays. Subcutaneous injection of testosterone increased serum levels of testosterone and PSA which was ameliorated by pretreatments of rat with ATR, celecoxib, or pioglitazone. Similarly, testosterone-induced increase in MDA and reduction in the activity of GSH, superoxide dismutase (SOD), and catalase were attenuated by ATR. Conversely, celecoxib or pioglitazone treatment failed to affect the activity of antioxidant enzymes. The histology of the prostate showed significant improvement in prostatic cells of ATR, celecoxib, or pioglitazone treated. Findings from the study showed that atorvastatin attenuated testosterone-induced BPH. Moreover, synergistic effect was observed when atorvastatin was combined with celecoxib.

The HIV-1 regulatory proteins Tat and Rev are frequently targeted by cytotoxic T lymphocytes derived from HIV-1-infected individuals.

The HIV-1 regulatory proteins Rev and Tat are expressed early in the virus life cycle and thus may be important targets for the immune control of HIV-1-infection and for effective vaccines. However, the extent to which these proteins are targeted in natural HIV-1 infection as well as precise epitopes targeted by human cytotoxic T lymphocytes (CTL) remain to be defined. In the present study, 57 HIV-1-infected individuals were screened for responses against Tat and Rev by using overlapping peptides spanning the entire Tat and Rev proteins. CD8+ T cell responses against Tat and Rev were found in up to 19 and 37% of HIV-1-infected individuals, respectively, indicating that these regulatory proteins are important targets for HIV-1-specific CTL. Despite the small size of these proteins, multiple CTL epitopes were identified in each. These data indicate that Tat and Rev are frequently targeted by CTL in natural HIV-1 infection and may be important targets for HIV vaccines.

Extraction of Kuntscher (femoral) implant under local anaesthesia: an appraisal of patients tolerance and merits.

A preliminary study of 15 patients undergoing extraction of Kuntscher nails after fracture surgery under local anaesthesia indicated varying behavioural responses and tolerance of the procedure. In the main study cohort, of 59 (fifty-nine) patients within the age range of 16-65 years, made up of 41 males and 18 females, 38 patients (64.4%) tolerated the procedure without discomfort, 14 patients (23.7%) experienced mild to moderate pain, while the remaining 7 patients (11.9%), pain and discomfort was severe enough to require the additional use of intravenous anaesthesia (Ketamine Hydrochloride). There were no significant complications post-operatively. Financial considerations are assuming a greater importance, since planned procedures for osteosynthetic metal implants removal contribute considerably to the waiting lists for elective surgery. We conclude that there are clear advantages in removal of Kuntscher nails under local anaesthesia and it is also noteworthy that the compliance rate amongst our patients has been on the increase, as this method offers shorter waiting period, immediate ambulation, is a day procedure, early return to work and lower monetary costs. We are unaware of existing prospective work on the extraction of Kuntscher nails under local anaesthesia.

Management of ascites. Paracentesis as a guide.

All patients with new-onset ascites or with known ascites and any change in their condition, such as the appearance of fever, abdominal pain, renal insufficiency, or encephalopathy, should undergo diagnostic paracentesis to characterize the ascitic fluid, detect infection, and aid differential diagnosis. A serum-ascites albumin gradient greater than 1.1 g/dL indicates portal hypertension. Spontaneous bacterial peritonitis is a common and serious complication of ascites and is best diagnosed by the number of neutrophils in the ascitic fluid. Patients with the condition should be treated with parenteral antibiotics, and response to therapy should be assessed with repeated paracentesis. Hospitalized patients with low-protein ascites should receive antibiotic prophylaxis. Sodium restriction and diuretics are the cornerstones of therapy for ascites. In refractory cases, alternative forms of therapy, such as large-volume paracentesis, peritoneovenous shunting, or transjugular intrahepatic portosystemic shunting, may be of benefit. Patients with refractory ascites should be considered for liver transplantation.

Removal of femoral Kuntscher nails in selected cases under local anaesthesia.

A preliminary study of fifteen patients undergoing extraction of Kuntscher nails after fracture surgery under local anaesthesia indicated varying behavioural responses and tolerance of the procedure. In the main study cohort, of 59 patients within the age range of 16-65 years, made up of 41 males and 18 females, 38 patients (64.4%) tolerated the procedure without discomfort, 14 patients (23.7%) experienced mild to moderate pain, while the remaining seven patients (11.9%), pain and discomfort was severe enough to require the additional use of intravenous anaesthesia (ketamine hydrochloride). There were no significant complications post-operatively. Financial considerations are assuming a greater importance, since planned procedures for osteosynthetic metal implants removal contribute considerably to the waiting lists for elective surgery. We conclude that there are clear advantages in removal of Kuntscher nails under local anaesthesia and it is also noteworthy that the compliance rate amongst our patients has been on the increase, as this method offers shorter waiting period, immediate ambulation, is a day procedure with early return to work and lower monetary costs. We are unaware of existing prospective work on the extraction of Kuntscher nails under local anaesthesia.