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Underlying Medical Conditions (underlying + medical_condition)

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Medical Sciences100%

Selected Abstracts

Vitrectomy may prevent the occurrence of diabetic macular oedema

ACTA OPHTHALMOLOGICA, Issue 4 2010
Audrey Navarro
Abstract. Purpose:, This study aimed to demonstrate that vitrectomy may prevent the occurrence of diabetic macular oedema (DMO). Methods:, Three patients with diabetes type 1 underwent vitrectomy in one eye to treat complications of proliferative diabetic retinopathy. Results:, During follow-up, all patients suffered unilateral macular oedema in the non-vitrectomized eye as a result of general metabolic changes. In two of these patients, the DMO resolved with management of the underlying medical condition. Conclusions:, These case reports suggest the vitreous may play a role in the occurrence of DMO associated with general risk factors. Further studies are needed to increase understanding of the mechanisms involved in the development and progression of DMO. [source]

An epidemiological analysis of severe cases of the influenza A (H1N1) 2009 virus infection in Japan

INFLUENZA AND OTHER RESPIRATORY VIRUSES, Issue 4 2010
Koji Wada
Please cite this paper as: Wada et al. (2010). An epidemiological analysis of severe cases of the influenza A (H1N1) 2009 virus infection in Japan. Influenza and Other Respiratory Viruses 4(4), 179,186. Background, The age distribution of confirmed cases with influenza A (H1N1) 2009 has shifted toward children and young adults, in contrast to interpandemic influenza, because of the age specificities in immunological reactions and transmission characteristics. Objectives, Descriptive epidemiological analysis of severe cases in Japan was carried out to characterize the pandemic's impact and clinical features. Methods, First, demographic characteristics of hospitalized cases (n = 12 923), severe cases (n = 894) and fatal cases (n = 116) were examined. Second, individual records of the first 120 severe cases, including 23 deaths, were analyzed to examine potential associations of influenza death with demographic variables, medical treatment and underlying conditions. Among severe cases, we compared proportions of specific characteristics of survivors with those of fatal cases to identify predictors of death. Results, Age distribution of hospitalized cases shifted toward those aged <20 years; this was also the case for deaths without underlying medical conditions. Deaths in adults were mainly seen among those with underlying medical conditions, resulting in an increased risk of death as a function of age. According to individual records, the time from onset to death in Japan appeared rather short compared with that in other countries. Conclusion, The age specificity of severe cases and their underlying medical conditions were consistent with other countries. To identify predictors of death in influenza A (H1N1) 2009 patients, more detailed clinical characteristics need to be examined according to different age groups and types of manifestations, which should ideally include mild cases as subjects. [source]

Home Intravenous Antimicrobial Infusion Therapy: A Viable Option in Older Adults

JOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 5 2007
(See editorial comments by Dr. Kevin High on pp 79
OBJECTIVES: To determine whether older adults and younger adults are equally able to administer home intravenous antimicrobial infusion therapy (home IV antimicrobials) without intensive support from home care agencies. DESIGN: Retrospective cohort study. SETTING: Veterans Affairs Ann Arbor Healthcare System, a 100-bed tertiary care medical center. PARTICIPANTS: All patients who received home IV antimicrobials from July 1, 2000, through December 31, 2003. MEASUREMENTS: Demographic data, underlying medical conditions, indications for therapy, antimicrobial agents administered, concomitant medications, frequency of patient visits and phone calls, adverse events, and outcomes of infections. RESULTS: A total of 205 patients received 231 courses of home IV antimicrobials, with 107 courses in patients aged 60 and older and 124 courses in patients younger than 60. For both groups, the most common indication for therapy was osteoarticular infections, and the predominant pathogens were Staphylococcus aureus and coagulase-negative Staphylococcus. Older patients were significantly more likely than younger patients to require the assistance of family members to help with the infusion and were more likely to be seen in urgent care or to call the infectious diseases pharmacist or physicians with questions. Overall, clinical outcomes and numbers of adverse events were similar in both groups, with the exception of nephrotoxicity, which was greater in the older group (P=.02). CONCLUSION: With appropriate support from a hospital-based home IV antimicrobials therapy team, home IV antimicrobial appears to be a viable option for older adults. [source]

Assessment of Adherence to Atovaquone-Proguanil Prophylaxis in Travelers

JOURNAL OF TRAVEL MEDICINE, Issue 4 2010
John C. DePetrillo MD
Background. Malaria continues to be a serious, world-wide infection. Atovaquone-proguanil is one of the prophylactic agents recommended for travelers to endemic regions. However, little information is available regarding adherence with this medication. A large proportion of malaria cases reported from travelers is due to non-adherence to prescribed regimens. This study was undertaken to analyze adherence with atovaquone-proguanil prophylaxis and specific factors contributing to non-adherence. Methods. Men and non-pregnant women ,18 years of age were eligible for inclusion. Enrolled travelers received a prescription for atovaquone-proguanil prophylaxis and were contacted by telephone within 3 weeks of return to the United States. A questionnaire was prepared by the authors to determine if subjects were adherent with the medication. Additional data included demographics, duration of malarious travel, previous use of prophylactic agents, underlying medical conditions, concurrent medications, and reasons for non-adherence. Results. Complete data were available for 104/124 (84%) participants: 49 (47%) men, 55 (53%) women. Average duration of malarious travel was 12 days, and 19 (18%) travelers reported previous travel to a malarious region. Ninety-two (89%) subjects were completely adherent with their prophylactic atovaquone-proguanil course. Adverse effects were seen in 6 (5%) travelers. Conclusions. Adherence with atovaquone-proguanil malaria prophylaxis is high among travelers from a non-endemic region. Adverse effects are minimal. Non-adherence was primarily attributable to travelers' perception of need. [source]