Effect of a Physician/Pharmacist Collaborative Care Model on Time in Target Range for Systolic Blood Pressure: Post Hoc Analysis of the CAPTION Trial.
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ABSTRACT:
SUBMITTER: Dixon DL
PROVIDER: S-EPMC8415522 | biostudies-literature | 2021 Sep
REPOSITORIES: biostudies-literature
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Effect of a Physician/Pharmacist Collaborative Care Model on Time in Target Range for Systolic Blood Pressure: Post Hoc Analysis of the CAPTION Trial.
Dixon Dave L DL Baker William L WL Buckley Leo F LF Salgado Teresa M TM Van Tassell Benjamin W BW Carter Barry L BL
Hypertension (Dallas, Tex. : 1979) 20210815 4
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Project description:Physician-pharmacist collaboration improves blood pressure, but there is little information on whether this model can reduce the gap in healthcare disparities. This trial involved 32 medical offices in 15 states. A clinical pharmacist was embedded within each office and made recommendations to physicians and patients in intervention offices. The purpose of the present analysis was to evaluate whether the pharmacist intervention could reduce healthcare disparities by improving blood pressure in high-risk racial and socioeconomic subjects compared with the control group. The analyses in minority subjects were prespecified secondary analyses, but all other comparisons were secondary, post hoc analyses. The 9-month visit was completed by 539 patients: 345 received the intervention, and 194 were in the control group. Following the intervention, mean systolic blood pressure was found to be 7.3 mm Hg (95% confidence interval 2.4, 12.3) lower in subjects from racial minority groups who received the intervention compared with the control group (P=0.0042). Subjects with ≤12 years of education in the intervention group had a systolic blood pressure 8.1 mm Hg (95% confidence interval 3.2, 13.1) lower than the control group with lower education (P=0.0001). Similar reductions in blood pressure occurred in patients with low incomes, those receiving Medicaid, or those without insurance. This study demonstrated that a pharmacist intervention reduced racial and socioeconomic disparities in the treatment of blood pressure. Although disparities in blood pressure were reduced by the intervention, there were still nonsignificant gaps in mean systolic blood pressure when compared with intervention subjects not at risk.Clinical trial registrationURL: http://clinicaltrials.gov. Unique identifier: NCT00935077.
| S-EPMC5063695 | biostudies-literature
Project description:BackgroundThere is no consensus on optimal time points or systolic blood pressure (SBP) ranges for calculating SBP time in target range (TTR).ObjectivesThe purpose of this study was to examine the association between various SBP TTR metrics and long-term major adverse cardiovascular events (MACEs).MethodsThis post hoc analysis of SPRINT (Systolic Blood Pressure Intervention Trial) included participants with complete SBP records and excluded those with events in the initial 2 years. SBP TTR indices were calculated using 3 distinct time points and 3 SBP ranges. The SBP TTR index was the percentage of BP segments within the target SBP ranges. MACE, a composite of heart attack, stroke, heart failure, and cardiovascular death, was the primary outcome.ResultsThe study included 7,134 participants, of which 280 had a MACE. The median follow-up was 3.91 years. The SBP TTR 110-140 mm Hg in the initial 3 months (3-month TTR 110-140) had the optimal association with incident MACEs (HR per SD increase: 0.898 [95% CI: 0.788-1.022], relative informativeness = 24,398%). Furthermore, a cutoff value of 0.65 for 3-month TTR 110 to 140 index was identified by threshold saturation analysis and used to evaluate early SBP control. No difference in MACE was seen between different mean SBP subgroups in those with good early control (3-month TTR >0.65) (P = 0.88), but in those with poor early control (3-month TTR ≤0.65), a higher mean SBP of 130 to 140 mm Hg was related to increased MACEs risk (P = 0.019).ConclusionsIn nondiabetic hypertensive patients, the 3-month TTR 110 to 140 mm Hg index was independently associated with 2-year MACEs. A cutoff of TTR index as 0.65 indicated that the patient was within BP target range 65% of the time, combined with mean SBP, could potentially be used as a metric for early control stability and late cardiovascular risks. (Systolic Blood Pressure Intervention Trial [SPRINT]; NCT01206062).
| S-EPMC11533077 | biostudies-literature
Project description:BackgroundWhether time-in-target range (TTR) for systolic blood pressure (SBP) associates with adverse kidney and cardiovascular events remains incompletely understood.MethodsThis study included participants in 2 clinical trials that compared intensive (<120 mm Hg) and standard (<140 mm Hg) SBP lowering. SBP-TTR for months 0 to 3 was calculated using therapeutic ranges of 110 to 130 mm Hg and 120 to 140 mm Hg for the intensive and standard arms, respectively. Adverse kidney events included the composite of dialysis, kidney transplant, serum creatinine >3.3 mg/dL, sustained eGFR <15 mL/(min·1.73 m2), or sustained eGFR decline >40%. Adverse cardiovascular events included myocardial infarction, stroke, heart failure, and cardiovascular death. Adjusted Cox proportional hazards regression models were used to estimate the association between SBP-TTR and kidney and cardiovascular events.ResultsParticipants with higher TTR were younger and less likely to have preexisting cardiovascular disease. Compared with participants with TTR of 0%, the risk of adverse kidney events was lower for participants with TTR of >0% to 43% (hazard ratio [95% CI], 0.57 [0.42-0.76]; P<0.001), 43% to <70% (0.57 [0.42-0.78]; P=0.001), 70% to <100% (0.53 [0.38-0.74]; P<0.001), and 100% (0.33 [0.20-0.57]; P<0.001) in fully adjusted models. The risk of major adverse cardiovascular events was lower for participants with TTR of >0% to 43% (0.66 [0.52-0.83]; P=0.001), 43% to <70% (0.70 [0.55-0.90]; P=0.005), 70% to <100% (0.65 [0.50-0.84]; P=0.001), or 100% (0.56 [0.39-0.80]; P=0.001) compared with those with TTR of 0%.ConclusionsHigher SBP-TTR associates with lower risks of adverse kidney and cardiovascular events in adults with hypertension. SBP-TTR may be a potential therapeutic target and quality metric.
| S-EPMC9851984 | biostudies-literature
Project description:BackgroundStandard blood pressure control metrics may not account for fluctuations in blood pressure over time.ObjectivesThis study sought to estimate the independent association between time in systolic blood pressure target range and major adverse cardiovascular events among adults with hypertension.MethodsThis study was a post hoc analysis of SPRINT (Systolic Blood Pressure Intervention Trial), a randomized clinical trial that compared intensive (<120 mm Hg) and standard (<140 mm Hg) systolic blood pressure treatment interventions in adults with hypertension and high cardiovascular risk. Target range was defined as 110 to 130 mm Hg and 120 to 140 mm Hg for the intensive and standard arms, respectively. Time in target range was estimated over the first 3 months of follow-up using linear interpolation. The association between time in target range with major adverse cardiovascular events was estimated using adjusted Cox proportional hazards regression models.ResultsParticipants with greater time in target range were younger, had lower 10-year cardiovascular risk and lower baseline systolic blood pressure, and were more likely women and statin users. Each 1-SD increase in time in target range was significantly associated with a decreased risk of first major adverse cardiovascular event in fully adjusted models. Time in target range remained significantly associated with major adverse cardiovascular events despite adjustment for mean systolic blood pressure or systolic blood pressure variability. Among participants with mean systolic blood pressure at or below target, time in target range remained associated with major adverse cardiovascular events.ConclusionsTime in systolic blood pressure target range independently predicts major adverse cardiovascular event risk.
| S-EPMC7959178 | biostudies-literature
Project description:Study objectiveTo assess blood pressure control after discontinuation of a physician-pharmacist collaborative intervention.DesignComparative analysis of data of the patients who received the intervention versus a control group from a prospective, cluster-randomized, 9-month efficacy trial and the same patients' data 18 and 27 months after completion of the trial, abstracted from their medical records.SettingFive primary care medical offices operated by a university health system.PatientsOne hundred four patients with hypertension; 65 were in the intervention group, and 39 were in the control group.Measurements and main resultsIn the prospective study, patients were randomized to receive a physician-pharmacist collaborative intervention to improve blood pressure control or to the control group. Systolic and diastolic blood pressures were measured by a research nurse at baseline and at the end of the study (9 mo later). In the current study, data were abstracted for blood pressure and blood pressure control at 18 and 27 months (9 and 18 mo, respectively, after discontinuation of the study). At baseline, mean +/- SD systolic blood pressure was 152.5 +/- 9.5 and 150.1 +/- 9.6 mm Hg in the intervention and control groups, respectively (p=0.22). At 9 months, systolic blood pressure decreased to 124.5 +/- 10.7 and 132.0 +/- 15.1 mm Hg (p=0.0038 between groups), and blood pressure was controlled in 78.5% and 48.7% (p=0.0017) of patients in the intervention and control groups, respectively. By 18 months, systolic blood pressure had deteriorated to 131.0 +/- 12.2 and 143.3 +/- 17.5 mm Hg (p<0.001), and blood pressure control rates decreased to 53.9% and 30.8% (p=0.02). By 27 months, systolic blood pressure was 131.3 +/- 13.0 and 141.2 +/- 15.8 mm Hg (p=0.0008), and blood pressure control was 55.4% and 35.9% (p=0.05).ConclusionA sustained positive effect on blood pressure control was noted up to 18 months after discontinuation of a physician-pharmacist collaborative intervention, when compared with a control group. Blood pressure control did deteriorate at a similar rate in both the intervention and control groups, but the percentage of patients with controlled blood pressure remained significantly higher in the intervention group. These results suggest that continued interventions by pharmacists may be necessary to maintain high rates of blood pressure control, especially in those patients whose blood pressure begins to increase.
| S-EPMC2882166 | biostudies-literature
Project description:BackgroundThe purpose of this study was to evaluate if a physician/pharmacist collaborative model would be implemented as determined by improved blood pressure (BP) control in primary care medical offices with diverse geographic and patient characteristics and whether long-term BP control could be sustained.Methods and resultsProspective, cluster-randomized trial of 32 primary care offices stratified and randomized to control, 9-month intervention (brief), and 24-month intervention (sustained). We enrolled 625 subjects with uncontrolled hypertension; 54% from racial/ethnic minority groups and 50% with diabetes mellitus or chronic kidney disease. The primary outcome of BP control at 9 months was 43% in intervention offices (n=401) compared with 34% in the control group (n=224; adjusted odds ratio, 1.57 [95% confidence interval, 0.99-2.50]; P=0.059). The adjusted difference in mean systolic/diastolic BP between the intervention and control groups for all subjects at 9 months was -6.1/-2.9 mm Hg (P=0.002 and P=0.005, respectively), and it was -6.4/-2.9 mm Hg (P=0.009 and P=0.044, respectively) in subjects from racial or ethnic minorities. BP control and mean BP were significantly improved in subjects from racial minorities in intervention offices at 18 and 24 months (P=0.048 to P<0.001) compared with the control group.ConclusionsAlthough the results of the primary outcome (BP control) were negative, the key secondary end point (mean BP) was significantly improved in the intervention group. Thus, the findings for secondary end points suggest that team-based care using clinical pharmacists was implemented in diverse primary care offices and BP was reduced in subjects from racial minority groups.Clinical trial registrationURL: http://www.clinicaltrials.gov. Unique identifier: NCT00935077.
| S-EPMC4618490 | biostudies-literature
Project description:BackgroundElevated blood pressure (BP) in childhood is associated with adult hypertension and arterial stiffness. However, the effect of long-term time in target range (TTR) for BP since childhood on the risk of arterial stiffness in midlife remains unclear.ObjectivesThe purpose of this study was to determine the independent association of TTR for systolic blood pressure (SBP) from childhood to midlife with arterial stiffness in adulthood.MethodsThis study used data from the ongoing cohort of the Hanzhong Adolescent Hypertension Study. SBP-TTR was assessed over 36 years, with the target ranges of SBP defined as the 90th to 95th percentile of SBP for age, sex, and height in childhood, and 110 to 130 mm Hg in adulthood. Arterial stiffness was defined as brachial-ankle pulse wave velocity >1,400 cm/s.ResultsOf the total 1,959 participants, 55.5% (1,088 of 1,959) were men, and the mean age was 49 years. The risk of arterial stiffness exhibited a gradual decrease with increasing SBP-TTR over the 36-year follow-up. Compared with the participants in the lowest quartile of SBP-TTR from childhood to midlife, those in the highest quartile showed significantly reduced arterial stiffness risk in midlife. This association persisted even after adjusting for mean SBP and SBP variability. Furthermore, men in the highest quartile of SBP-TTR demonstrated a markedly lower arterial stiffness risk than those in the lowest quartile, whereas this effect was not observed in women.ConclusionsHigher long-term SBP-TTR from childhood to midlife is associated with a reduced risk of arterial stiffness in midlife, regardless of the mean SBP or SBP variability.
| S-EPMC11775792 | biostudies-literature
Project description:Numerous studies have demonstrated the value of team-based care to improve blood pressure (BP) control, but there is limited information on whether these models would be adopted in diverse populations. The purpose of this study was to evaluate whether a collaborative model between physicians and pharmacists can improve BP control in multiple primary care medical offices with diverse geographic and patient characteristics and whether long-term BP control can be sustained. This study is a randomized prospective trial in 27 primary care offices first stratified by the percentage of underrepresented minorities and the level of clinical pharmacy services within the office. Each office is then randomized to either a 9- or 24-month intervention or a control group. Patients will be enrolled in this study until 2012. The results of this study should provide information on whether this model can be implemented in large numbers of diverse offices, if it is effective in diverse populations, and whether BP control can be sustained long term.URL: http://www.clinicaltrials.gov. Unique identifier: NCT00935077.
| S-EPMC2931811 | biostudies-literature
Project description:Background: Poor time in therapeutic range (TTR) control is associated with an increased risk of stroke and bleeding in atrial fibrillation (AF) patients receiving warfarin. This study aimed to determine whether the physician-pharmacist collaborative clinic (PPCC) model could improve the anticoagulation quality as well as to create a nomogram for predicting anticoagulation quality in AF patients. Methods: This retrospective observational study enrolled AF patients who either initially received warfarin or returned to warfarin after withdrawal between January 1, 2016 and January 1, 2021, at our institution. The primary outcome was dynamic changes in TTRs (a TTR of ≥60% considered high anticoagulation quality). The secondary outcomes were thromboembolic and bleeding events during follow-up. We compared the dynamic changes in TTRs between the general clinic (GC) and PPCC groups in both the original and propensity score matching (PSM) cohorts. In addition, we explored the potential predictors of high anticoagulation quality and subsequently formulated a nomogram to predict anticoagulation quality. Results: A total of 265 patients with AF were included, comprising 57 patients in the PPCC group and 208 patients in the GC group. During a median follow-up period of 203 days, the PPCC group had a shorter time (76 vs. 199 days, p < 0.001) and more patients achieved a TTR ≥60% (73.7 vs. 47.1%, p = 0.002 by log-rank test) than the GC group. The results from the PSM cohort confirmed this finding. No significant differences in the incidences of thromboembolic events (5.3 vs. 5.3%, p = 1.000) and bleeding events (4.3 vs. 3.5%, p = 1.000) were observed between the two groups. Four variables were explored as predictors related to high anticoagulation quality: treatment within a PPCC, history of bleeding, history of bleeding, and the presence of more than four comorbidities. The nomogram revealed a moderate predictive ability (c-index: 0.718, 95% confidence interval (95%CI): 0.669-0.767) and a moderately fitted calibration curve. Conclusion: The PPCC model contributed to improved anticoagulation quality in AF patients receiving warfarin. The nomogram might be an effective tool to predict anticoagulation quality and could aid physicians and pharmacists in the selection of patients who will likely benefit from sustained and active intervention.
| S-EPMC8220138 | biostudies-literature
Project description:Background The association between blood pressure control and clinical outcomes is unclear among patients with heart failure with preserved ejection fraction. Both too high and too low of systolic blood pressure (SBP) have been reported to be related to poor clinical prognosis. This study aimed to assess the association between time in SBP target range and adverse clinical events among patients with heart failure with preserved ejection fraction. Methods and Results This study was a secondary analysis of the TOPCAT (Treatment of Preserved Cardiac Function Heart Failure With an Aldosterone Antagonist) trial, a randomized clinical trial that compared the efficacy and safety of spironolactone in patients with heart failure with preserved ejection fraction. Time in target range (TTR) was calculated using linear interpolation, with the target range of SBP defined as 110 to 130 mm Hg. The association between TTR with adverse outcomes was estimated using multivariable Cox regression to adjust for multiple confounders. Participants with greater TTR were younger, more likely to be White, had less comorbidities, and lower body mass index. After adjusting for multiple covariates including mean SBP, 1-SD increment (38.3%) of TTR was significantly associated with a decreased risk of primary composite end point (hazard ratio [HR], 0.81 [0.73-0.90]), as well as a lower risk of all-cause mortality (HR, 0.81 [0.73-0.90]), cardiovascular death (HR, 0.78 [0.68-0.90]), and heart failure hospitalization (HR, 0.85 [0.74-0.97]). Results were similar when participants were categorized by TTR groups. Subgroup analyses showed that the associations were more significant in young people than in the old (Pinteraction=0.028). Conclusions In patients with heart failure with preserved ejection fraction, greater time in SBP target range was statistically associated with a decreased risk of cardiovascular outcomes and mortality events beyond blood pressure level, especially among younger patients.
| S-EPMC9075464 | biostudies-literature