PREVALENCE, PATTERN AND RISK FACTORS FOR RETINAL VASCULAR OCCLUSIONS IN A TERTIARY HOSPITAL IN JOS, NIGERIA.

INTRODUCTION: Retinal vascular occlusions are the second most common retinal vascular diseases following diabetic retinopathy. They are associated with several systemic and ocular pathologies and are significant causes of visual loss. OBJECTIVE: This study aims to determine the prevalence, pattern and risk factors for retinal vascular occlusions in a tertiary hospital in Jos, Nigeria. METHODOLOGY: A retrospective review of all cases of retinal vascular occlusions seen in the eye clinic from January 2011 to December 2014 was carried out. The patients were identified from the clinic register and their case folders retrieved. The following data were then extracted from the files; patients' age, sex, presenting visual acuity, presence of any systemic disorders and type of retinal vascular occlusion. Data analysis was done using Epi Info 7. RESULTS: Three thousand eight hundred and twenty one new patients were seen during the study period and there were 52 (1.36%) cases of retinal vascular occlusions. Only the case files of 44 (84.6%) patients were available and were analysed. These were made up of 17 (39%) males and 27 (61%) females. These had a total of 46 retinal vascular occlusions made up of 37 (80.4%) retinal vein occlusions, 8 (17.4%) central retinal artery occlusions and a case (2.2%) of combined central retinal artery and vein occlusion. Hypertension and diabetes were the most common systemic risk factors while glaucoma was the most common ocular association. CONCLUSION: Retinal vascular occlusions are uncommon in our centre but lead to severe visual loss and are associated with significant systemic pathologies.

Challenges of the management of mass casualty: lessons learned from the Jos crisis of 2001.

BACKGROUND: Jos has witnessed a series of civil crises which have generated mass casualties that the Jos University Teaching Hospital has had to respond to from time to time. We review the challenges that we encountered in the management of the victims of the 2001 crisis. METHODOLOGY: We reviewed the findings of our debriefing sessions following the sectarian crisis of September 2001 and identified the challenges and obstacles experienced during these periods. RESULTS: Communication was a major challenge, both within and outside the hospital. In the field, there was poor field triage and no prehospital care. Transportation and evacuation was hazardous, for both injured patients and medical personnel. This was worsened by the imposition of a curfew on the city and its environs. In the hospital, supplies such as fluids, emergency drugs, sterile dressings and instruments, splints, and other consumables, blood and food were soon exhausted. Record keeping was erratic. Staff began to show signs of physical and mental exhaustion as well as features of anxiety and stress. Tensions rose between different religious groups in the hospital and an attempt was made by rioters to attack the hospital. Patients suffered poor subsequent care following resuscitation and/or surgery and there was neglect of patients on admission prior to the crisis as well as non trauma medical emergencies. CONCLUSION: Mass casualties from disasters that disrupt organized societal mechanisms for days can pose significant challenges to the best of institutional disaster response plans. In the situation that we experienced, our disaster plan was impractical initially because it failed to factor in such a prolongation of both crisis and response. We recommend that institutional disaster response plans should incorporate provisions for the challenges we have enumerated and factor in peculiarities that would emanate from the need for a prolonged response.