Levalbuterol hydrochloride

Asthma is a common chronic condition that causes substantial morbidity among children and much of it is attributable to medication non-adherence. The National Asthma Education and Prevention Program (NAEPP) and the American Academy of Asthma, Allergy, and Immunology have urged others to develop more effective adherence programs.Schools are a logical setting to deploy such interventions because they are where children congregate, spend much of their day, and are frequently monitored. Because many schools serve a high proportion of minority and low-income students, engaging them presents a unique opportunity to reach populations who experience the greatest burden of preventable morbidity.
Supervising inhaled corticosteroid (ICS) use in the school setting can increase medication adherence and reduce episodes of poor asthma control. Under certain conditions, it can also be cost-effective. However, recruiting children from school settings tends to enroll children with mild asthma and infrequent health care use. Therefore, initiating supervised treatment in these children tends to burden school personnel with unnecessary work and diminishes the program's cost-effectiveness. To address this inefficiency, the investigators propose to recruit children who are discharged from the Hospital Emergency Departments (EDs) following successful treatment of an asthma attack. Such children have much higher risk of a future asthma attack than their peers.
The Pediatric Emergency Care Applied Research Network (PECARN) com- prises10 hospital-affiliated EDs that serve 1 million acutely ill and injured children annually. Their primary research mission is to reduce childhood morbidity and mortality by establishing creative partnerships between emergency medical service providers and their surrounding communities. The networks size and geographic diversity make it uniquely situated to develop, implement, and evaluate the feasibility and effectiveness of ED-Initiated School-Based Asthma Medication Supervision (ED-SAMS).
Approximately one-third of children treated for an asthma attack within PECARN experience a second ED-managed attack within 6 months. While the NAEPP guidelines recommend that long-term ICS treatment should be initiated at ED discharge, <20% of children actually receive a prescription for controller therapy. Observational data indicate that patients who use ICS following discharge are almost half as likely as non-users to experience a repeat ED visit. Many have also argued that ED-initiated treatment could be cost-effective. However, simply providing patients with a prescription does not ensure that they will actually use it once discharged. To ensure better medication adherence, the investigators propose to dispense ICS at discharge and supervise its use in the school setting.

Albuterol is the most commonly used β agonist to treat reversible lower airway obstruction. Albuterol contains a racemic mixture of two enantiomers. Levalbuterol contains the single R form enantiomer. Levalbuterol is frequently prescribed to limit cardiovascular toxicity. The investigators sought to examine the changes in oxygen consumption (V'O2) and Heart Rate (HR) following administration of albuterol and