Many people who get one diagnosis get five diagnoses, but they don't have five diseases — they have one underlying condition".
All patients had high-risk underlying conditions (five acute myelogenous leukemias, six solid tumors, five prolonged ICU stays, and two major abdominal surgical interventions).
The cause of CFS is not entirely clear and is difficult to explain by any one or two underlying medical conditions, making its treatment quite difficult.
**During secondary analysis period (weeks 44-52), eight cases had received pandemic H1N1 vaccine >2 weeks before illness onset, including five children aged 1-9 yeand and three young adults aged 20-49 years; of these eight pandemic H1N1 vaccine failures, six cases reported no underlying conditions.
In a cohort of 439 non-ICU patients with invasive aspergillosis [ 22], nine had no apparent underlying conditions before diagnosis.
Four case-patients had underlying conditions, including a history of otitis media, chronic pulmonary disease, premature birth, esophageal reflux, abnormal heart murmur, or pulmonary valve stenosis, and 1 child experienced a stroke while hospitalized.
In October 2007, following four deaths in patients with severe underlying conditions 1 to 12 hours after injection of Definity®, a 'black box warning' stating that use of these agents was contraindicated in unstable patients was released by the US Food and Drug Administration.
Six of these 11 patients had no other underlying conditions.
Only nine of the patients in this series had underlying conditions associated with a higher risk for seasonal influenced complications.
Two of the BC pediatric case-patients had underlying conditions affecting their lungs and were on inhaled corticosteroids.
