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Medical Sciences	75%

Selected Abstracts

Eye injuries in rural Victoria, Australia

CLINICAL & EXPERIMENTAL OPHTHALMOLOGY, Issue 7 2009
Simon Raymond MPH
Abstract Background:, Eye injury causes significant morbidity and is a leading cause of blindness worldwide. This study investigates the incidence, spectrum and patterns of eye injury presenting to a rural hospital in Victoria, Australia. Methods:, A retrospective review of the medical records of all patients presenting with eye injury to the emergency department of Mildura Base Hospital, Victoria, Australia in year 2004 was conducted. As the emergency department of Mildura Base Hospital also acts as the outpatient department for this hospital, the series included all patients treated for eye injury at Mildura Base Hospital in year 2004, including admissions. Results:, There were 435 patients present to Mildura Base Hospital emergency department for eye injury in 2004, which represented approximately 1% of the population of Mildura. The majority of eye injuries were superficial. Fifty-six (13%) patients required specialist attention. Most patients were male (83%) and were middle-aged. The most common locations where eye injuries took place were residential homes (47%) and workplaces (32%). The most common causes of eye injuries were trade tools and machinery (47%), followed by chemicals (12%) and branches/sticks/twigs (11%). Of particular concern for Mildura is that approximately one-quarter of the patients treated at Mildura Base Hospital for eye injury in 2004 had been treated at Mildura Base Hospital for a separate episode of eye injury in the past. Conclusion:, Eye injuries represent a significant socioeconomic burden. This research contributes to the knowledge required for the design and implementation of effective preventative strategy. [source]

On the structural age of the Rhoscolyn antiform, Anglesey, North Wales

GEOLOGICAL JOURNAL, Issue 2 2004
Hossein Hassani
Abstract In the Rhoscolyn area of Anglesey, the late Precambrian interbedded psammites and pelites of the Monian Supergroup are folded into a kilometre-scale antiform, plunging about 25°NE and with an axial surface dipping about 40°NW. Numerous folds of up to a few tens of metres in wavelength are present on both limbs of this antiform. These smaller-scale folds also plunge about 25°NE but clearly belong to two separate episodes of folding, and it has become a matter of longstanding controversy as to whether the larger antiform belongs to the first or second of these episodes. Close examination of the cleavage/bedding asymmetries from all the lithologies, however, shows that the large antiform is a second-generation structure, and that on the gently dipping northwest limb, the sense of cleavage/bedding asymmetry of the earlier cleavage in the psammitic units has been almost uniformly and homogeneously reversed (so that it appears to be axial planar to the antiform), while in the pelitic units the sense of cleavage/bedding asymmetry of the earlier cleavage has been preserved. Many of the small-scale complexities of the observed cleavage/bedding relationships may be explained by appealing to differences in the timing of the formation of buckling instabilities relative to this reorientation of the early cleavage in the psammites during the second deformation. A first-order analysis of the finite strains from around the large-scale antiform shows that the orientation of the first cleavage prior to the second deformation was steeply dipping to the southeast. The second deformation correlates with the southeast-verging Caledonian deformation affecting the Monian and Ordovician units elsewhere in northwest Anglesey, while the northwest-verging first deformation event, which is not present in the Ordovician rocks, must have occurred before they were deposited. Copyright © 2004 John Wiley & Sons, Ltd. [source]

Recurrent pneumothoraces associated with nocturnal noninvasive ventilation in a patient with muscular dystrophy

PEDIATRIC PULMONOLOGY, Issue 1 2002
Lee R. Choo-Kang MD
Abstract Although a common complication of mechanical ventilation in acute respiratory failure, spontaneous pneumothorax has been rarely reported among patients on chronic, intermittent, noninvasive positive pressure support. We report the first case of recurrent pneumothoraces associated with nocturnal bilevel positive airway pressure ventilation via a nasal mask. A 26-year old man with chronic respiratory failure secondary to an unclassified neuromuscular condition suffered four separate episodes of spontaneous pneumothorax over a 12-month period. Two episodes occurred while he was asleep on bilevel positive airway pressure support. He was found to have numerous subpleural blebs, and we propose a mechanism for their development. Following open pleurodesis and blebectomy, the patient has not had another pneumothorax. Given the increasing utilization of chronic nocturnal bilevel positive airway pressure ventilation, we suggest that healthcare providers and patients be made aware of this potentially life-threatening complication. Pediatr Pulmonol. 2002; 34:73,78. © 2002 Wiley-Liss, Inc. [source]

Desloratadine in combination with montelukast in the treatment of chronic urticaria: a randomized, double-blind, placebo-controlled study

CLINICAL & EXPERIMENTAL ALLERGY, Issue 9 2004
E. Nettis
Summary Background Chronic urticaria (CU) is a common skin condition. It is frequently a disabling disease due to the persistency of clinical symptoms, the unpredictable course and negative influence on the quality of life. Objective The aim of this study is to determine whether montelukast, a LTD4 receptor antagonist, plus desloratadine, is more efficacious than desloratadine alone in the treatment of chronic urticaria. Materials A randomized, double-blind, placebo-controlled study was conducted on 81 patients with a diagnosis of CU. A 1-week single-blind placebo run-in period (baseline) was followed by a 6-weeks double blind active treatment period. The patients were randomized to receive the following treatment once daily: (a) oral desloratadine (5 mg) plus placebo; (b) desloratadine (5 mg) plus montelukast (10 mg); (c) oral placebo alone. The study ended after another 1-week single-blind placebo washout period. Results The evaluable population thus consisted of 76 patients. Both desloratadine alone and desloratadine plus montelukast administered once daily yielded improvements with respect to the baseline assessment as regards pruritus, number of separate episodes, size and number of weals, visual analogue score and patients' quality of life and with respect to the placebo group both in the active treatment period and in the run-out period. However, desloratadine plus montelukast was shown to improve the symptoms and patients' quality of life significantly more than desloratadine alone, although it did not have a significant effect on the number of urticarial episodes. Conclusion The combination of desloratadine plus montelukast is effective in the treatment of CU. It may therefore be a valid alternative in patients with relatively mild CU, in view of its efficacy and the lack of adverse events. [source]