Listeria peritonitis in a patient on hemodialysis for end-stage renal disease secondary to lupus nephritis-a case report.

Key Clinical Message: Patients with a recent history of peritoneal dialysis catheter removal in the setting of immunosuppression should be monitored for rare Listeria bacterial peritonitis. This infection should be managed with ampicillin and gentamicin. Abstract: There are scattered reports to date of patients with peritonitis caused by Listeria monocytogenes. Listeria peritonitis is more commonly reported in patients with cirrhosis and those receiving peritoneal dialysis. We present a case of L. monocytogenes peritonitis in a patient with end-stage renal disease due to lupus nephritis actively on hemodialysis months after peritoneal dialysis catheter removal.

Nyctalopia and Xerophthalmia in a Patient With Crohn's Induced Vitamin A Deficiency.

The vitamin A derivative, retinal, plays a pivotal role in scotopic and color vision. Although vitamin A deficiency (VAD) presents as a common cause of preventable blindness in areas with poor access to foods rich in vitamin A, it is uncommon in developed countries. We present a 56-year-old male with a history of Crohn's disease and pancreatitis who was referred to our ophthalmology office by optometry for severe dry eyes. He complained of a two-year history of constant blurred vision and nyctalopia. He stated that "images just appear dark." Examination demonstrated mildly decreased visual acuity with severe ocular surface disease and characteristic Bitot's spots in both eyes. Based on the patient's history and physical, a diagnosis of xerophthalmia in the setting of VAD was made. The patient was referred to his internist, he then underwent further evaluation and treatment with vitamin A intramuscular injections post-diagnosis.  This case illustrates the potential for VAD secondary to malabsorption from Crohn's disease and the importance of taking a full patient history so systemic causes of ophthalmic symptoms may be promptly identified and treated. VAD is extremely rare in the United States, however, patients at risk for VAD may benefit from regular vitamin A level checks and ophthalmologic evaluation.

Perspectives of U.S. Ophthalmology Residents and Medical Students on Ophthalmology Exposure during Medical School.

Introduction In recent decades, ophthalmology exposure in medical school has been increasingly reduced. In turn, medical students have expressed concern over their ophthalmic skills. Research investigating the status of ophthalmology education in U.S. undergraduate medical curricula is limited to institutional data devoid of the student or resident perspective. This study seeks to gain a better understanding of current ophthalmology education for U.S. medical students from the trainee point of view. Methods A cross-sectional survey was distributed to current U.S. medical students interested in ophthalmology and U.S. ophthalmology residents. Demographic data, ophthalmology curriculum information, respondent learning preferences, and personal reflections were recorded. Thematic analysis and chi-square tests were utilized. Results In total, 387/4,482 (8.6%) surveys were completed by respondents from 75 U.S. medical institutions. Most respondents were exposed to formal ophthalmology curriculum (63%), research (89%), mentorship (84%), and clinical experiences (87%) during medical school, and medical school curriculum was ranked the third most helpful resource for students to learn about ophthalmology. Yet, 29% of residents ( n = 55) did not feel confident in their diagnostic ophthalmology skills based on their medical school exposure. Student and resident recommendations for improving ophthalmology education delivery commonly referenced nontraditional ophthalmology resources such as online videos ( n = 83) to supplement traditional learning materials such as lectures ( n = 56). Discussion These findings suggest that primary ophthalmology exposure in medical school has shifted toward extracurricular activities such as research and clinical observation. Considering the increasing time demands placed on the medical education system, utilizing nontraditional educational materials to supplement current undergraduate medical education in ophthalmology may provide educators with a resource to improve learner confidence and resident preparedness.

Hematologic, Biochemical, and Endocrine Parameters in Horses With Tooth Resorption and Hypercementosis.

BACKGROUND: Equine odontoclastic tooth resorption and hypercementosis (EOTRH) is a frequently diagnosed condition in adult horses. The underlying etiology is still unknown. Hematologic, biochemical, and endocrine values have not been reported in EOTRH-affected horses. OBJECTIVES: The main objective of the study was to describe the hematologic, biochemical, and endocrine parameters in horses with EOTRH. STUDY DESIGN: Descriptive cross-sectional study of client-owned animals with EOTRH. METHODS: A complete blood count, biochemistry panel, and endocrine profile were performed in horses diagnosed with EOTRH. Diagnosis was based on oral and radiographic examination findings and confirmed with histopathology. RESULTS: Eighteen horses with EOTRH aged 10 to 32 years from various regions of the United States were sampled. The only consistent abnormality on the complete blood cell count and chemistry panel was hypoalbuminemia (88%). Endocrine parameters demonstrated no major abnormalities in the functioning of the thyroid and pituitary pars intermedia. The parathyroid hormone concentration was increased in 7 (47%) of 15 horses with an elevated 25-hydroxy vitamin D in 3 (17%) of 17 horses. Main Limitations: The main limitations of this study are the small sample size and lack of age-matched and management-matched control horses. CONCLUSIONS: The relevance of elevated parathyroid hormone in this study cannot be determined due to the lack of age-based controls and large population studies. With the small population evaluated in this study, there are no obvious hematological, biochemical, and endocrine changes evident. Further evaluation with signalment-matched controls will be necessary to evaluate some trends noted in the laboratory values.