Discontinuation of Proton Pump Inhibitors in Patients With Chronic Kidney Disease.

Purpose: Proton pump inhibitors (PPIs) are commonly used medications and are historically well tolerated. Recent studies have linked PPI use to the development of chronic kidney disease (CKD) and end-stage renal disease. This study investigated the impact of discontinuing PPIs on renal function in patients with CKD. Methods: We conducted a retrospective chart review of patients with established CKD, defined as 2 eGFR (estimated glomerular filtration rate) measurements of less than 60 mL/min/1.73 m2 at least 90 days apart, who were on a PPI from January 1, 2014 to December 31, 2014, with a medication possession ratio greater than or equal to 70%. We compared baseline eGFR to a final eGFR after at least 6 months of discontinuation or continuation of a PPI. After power analysis, we targeted an enrollment of 200 patients (100 in each group) to achieve a power of 0.80 and an alpha of 0.05. Summary: A total of 97 patients in the PPI discontinuation group and 100 patients in the PPI continuation group met the study inclusion criteria. Baseline eGFR in the PPI continuation group was 47.9 mL/min/1.73 m2 and 50.7 mL/min/1.73 m2 in the discontinuation group. Final eGFR in the PPI continuation group was significantly higher than baseline at 51.1 mL/min/1.73 m2 (+3.25 ± 12.8, P = .01). Final eGFR in the PPI discontinuation group was 51.8 mL/min/1.73 m2 (+1.09 ± 12.8, P = .3). The average time between baseline and final eGFRs was 270 days in the PPI continuation group and 301 days in the discontinuation group. There was no statistically significant difference in the change in eGFRs between groups (95% confidence interval [CI] = -5.48-2.03, P = .37). Conclusions: Proton pump inhibitor discontinuation after prolonged continuous use in patients with CKD was not associated with a significant change in renal function after 1 year.

Design and Implementation of an Anti-Factor Xa Heparin Monitoring Protocol.

BACKGROUND: The VA Northeast Ohio Healthcare System introduced a new nurse-driven anti-factor Xa (anti-Xa) protocol for monitoring unfractionated heparin to replace the previous activated partial thromboplastin time protocol. OBJECTIVE: To design, implement, and evaluate the efficacy of the anti-Xa monitoring protocol. METHODS: An interdisciplinary team of providers collaborated to develop and implement a nurse-driven, facility-wide anti-factor Xa protocol for monitoring unfractionated heparin therapy. The effectiveness of this protocol was evaluated by retrospective analysis. RESULTS: We reviewed 100 medical records for compliance with the new anti-Xa monitoring protocol. We then evaluated 178 patients whose anticoagulation was monitored with the anti-Xa assay to determine the time to therapeutic range. We found that 80% of patients receiving the anti-Xa protocol achieved therapeutic anticoagulation within 24 hours, as compared with 54% of patients receiving the activated partial thromboplastin time protocol (P < .001). Protocol conversion also yielded a decrease in blood draws, dose adjustments, and potential calculation errors. CONCLUSIONS: Monitoring intravenous heparin therapy with the anti-Xa assay rather than activated partial thromboplastin time resulted in a shorter time to therapeutic anticoagulation, longer maintenance of therapeutic levels, and fewer laboratory tests and heparin dosage changes. We believe the current practice of monitoring heparin treatment with activated partial thromboplastin time assays should be reexamined.

Nurse-driven intravenous heparin protocol: quality improvement initiative.

BACKGROUND: Safe use of intravenous heparin is an important safety goal. OBJECTIVE: To improve the quality of intravenous heparin use. METHODS: A pre-post intervention design assessed the number of patients who reached a therapeutic activated partial thromboplastin time (aPTT), time to aPTT goal, and complications. Fifty traditional care patients were compared with 50 nurse-driven intravenous heparin protocol patients. The data were used to assess the effectiveness of a developed intervention package to improve the quality of intravenous heparin use. RESULTS: Sixteen percent of the preintervention group never reached the therapeutic goal compared with 8% in the postintervention group (P < .05). Mean time to achieve first therapeutic aPTT was 18.6 hours in the preintervention group compared with 15.2 hours in the postintervention group (P = .33). Neither group noted complications. CONCLUSIONS: The multidisciplinary team approach produced improved patient care outcomes and important lessons for improving the quality of intravenous heparin use.