Intervention to discontinue parenteral antimicrobial therapy in hospitalized patients with urinary tract infection, skin and soft tissue infection, or no evident infection.

OBJECTIVES: In a previous study, we found that unsolicited recommendations to physicians of medically stable patients with pneumonia to suspend parenteral antimicrobials shortened hospital length of stay (LOS) significantly. In this study, we made similar recommendations to physicians treating patients with different indications for parenteral antimicrobials, to examine the effect on LOS. METHODS: A nurse-interventionist presented randomly assigned physicians with nonconfrontational suggestions to discontinue parenteral antimicrobials by substituting comparable oral antimicrobials or stopping treatment. Patients were being treated for urinary tract infection, skin infection, or no evident infection. Blinded observers evaluated in-hospital and 30-day postdischarge patient courses. Methodologies were identical to the previous study. RESULTS: There were 70 physician-patient episodes (49 intervened episodes, 21 control episodes). In 44 episodes (90%), compliant physicians discontinued parenteral antimicrobials. Compared to a median postrandomization LOS of 2.5 days (range, 0 to 40.5) for 21 patients of control physicians, the corresponding LOS for 44 patients of compliant physicians was two days (range, 0 to 8; P = 1.0), and for five patients of noncompliant physicians, five days (range, 3 to 11; P = 0.04). The combined occurrence of all adverse events detected in this and the previous study was 11% for patients of control physicians, compared to 14% for patients of compliant physicians (P = 0.2), and 19% for patients of noncompliant physicians (P < 0.05). CONCLUSIONS: For patients of compliant physicians hospitalized with urinary tract infection, skin and soft tissue infection, or no evident infection, cessation of parenteral antimicrobials did not significantly shorten LOS, due to brief LOS of patients of control physicians. Patients of noncompliant physicians experienced more adverse events and prolonged LOS. The appropriateness of routine continuous use of parenteral antimicrobials in medically stable inpatients is questioned.

Intervention to discontinue parenteral antimicrobial therapy in patients hospitalized with pulmonary infections: effect on shortening patient stay.

OBJECTIVES: Current efforts to contain anti-microbial costs in hospitals are based on restricting drugs. We explored the effects of unsolicited case-specific recommendations to physicians to discontinue parenteral antimicrobial therapy in medically stable patients with pneumonia, in order to shorten hospital length of stay. METHODS: A nurse-interventionist, working as an emissary of an appropriate committee in 3 nonteaching community hospitals, presented randomly assigned physicians with nonconfrontational suggestions to substitute comparable oral antimicrobials for parenteral antimicrobials. Blinded observers evaluated in-hospital and 30-day postdischarge courses of patients of physicians who had been contacted by the nurse (cases) and those who had not (controls). RESULTS: Eighty-two patient episodes (47 physicians) met study criteria. There were 53 cases and 29 controls. In 42 of 53 (79%) case episodes, physicians discontinued parenteral antimicrobials; patients' mean length of stay was 2.4 days less than for 29 control episodes (estimated cost savings was $884/patient). In 11 (21%) episodes, case physicians continued parenteral therapy; patients' mean length of stay was 1.9 days longer than for controls (estimated cost excess was $704/patient). Education, training and practice characteristics were comparable in physician groups. Severity of illness indicators and postdischarge outcomes were comparable in patient groups. CONCLUSIONS: The major cost-saving potential for shifting from parenteral to oral antimicrobial therapy is shortened length of stay. Timely information about alternative drug therapies, offered on a patient-specific basis, appears to modify the treating behavior of physicians. The program as currently conducted is cost-effective, with an estimated net savings of $50,000 per 100 interventions.