The clinical and economic consequences of practice style variations in common surgical interventions: A protocol for systematic review

Blood pressure response to commonly administered antihypertensives for severe inpatient hypertension

BACKGROUND

Blood pressure (BP) elevations are commonly treated in hospitalized patients; however, treatment is not guideline directed. Our objective was to assess BP response to commonly prescribed antihypertensives after the development of severe inpatient hypertension (HTN).

METHODS

This is a cohort study of adults, excluding intensive care unit patients, within a single healthcare system admitted for reasons other than HTN who developed severe HTN (systolic BP>180 or diastolic BP >110 mmHg at least 1 hour after admission). We identified the most commonly administered antihypertensives given within 6 hours of severe HTN (given to >10% of treated patients). We studied the association of treatment with each antihypertensive vs. no treatment on BP change in the 6 hours following severe HTN development using mixed-effects model after adjusting for demographics and clinical characteristics.

RESULTS

Among 23,147 patients who developed severe HTN, 9,166 received antihypertensive treatment. The most common antihypertensives given were oral metoprolol (n = 1991), oral amlodipine (n = 1812), oral carvedilol (n = 1116), IV hydralazine (n = 1069) and oral hydralazine (n = 953). In the fully adjusted model, treatment with IV hydralazine led to 13 [-15.9, -10.1], 18 [-22.2, -14] and 11 [-14.1, -8.3] mmHg lower MAP, SBP, and DBP in the 6 hours following severe HTN development compared to no treatment. Treatment with oral hydralazine and oral carvedilol also resulted in significantly lower BPs in the 6 hours following severe HTN development (6 [-9.1, -2.1 and -7 [-9.1, -4.2] lower MAP, respectively) compared to no treatment. Receiving metoprolol and amlodipine did not result in a drop in BP compared to no treatment.

CONCLUSION

Among commonly used antihypertensives, IV hydralazine resulted in the most significant drop in BP following severe HTN, while metoprolol and amlodipine did not lower BP. Further research to assess the effect of treatment on clinical outcomes and if needed which antihypertensives to administer are necessary.

Availability and perceived usefulness of guidelines and protocols for subcutaneous hydration in palliative care settings

AIMS AND OBJECTIVES

To evaluate the availability of, adherence to, and perceived usefulness of guidelines and protocols for managing hydration and subcutaneous hydration in palliative care settings.

BACKGROUND

Hydration at the end of life and the use of a subcutaneous route to hydrate generate some controversy among health professionals for different reasons. Having guidelines and protocols to assist in decision-making and to follow a standard procedure may be relevant in clinical practice.

DESIGN

Cross-sectional telephone survey, with closed-ended and open-ended questions designed specifically for this study.

METHODS

Data were obtained from 327 professionals, each from a different palliative care service. Mean, standard deviation, minimum and maximum were calculated for continuous variables; frequency distributions were obtained for categorical variables. A qualitative content analysis was performed on the open-ended questions. The article adheres to the STROBE guidelines for reporting observational studies.

RESULTS

Only 24.8% of the participants had guidelines available to assist in making decisions regarding hydration, and 55.6% claimed to follow them 'always or almost always'. Of the participants, 38.8% had subcutaneous hydration protocols available, while 78.7% stated that they 'always or almost always' followed these protocols. The remaining participants considered the protocols as useful tools despite not having them available.

CONCLUSIONS

Only 25% of the participants' services had guidelines for hydration, and less than 40% had protocols for subcutaneous hydration. However, adherence was high, especially in cases where protocols existed. Among the participants who did not have guidelines and protocols, attitudes were mostly favourable, but mainly as a reference and support for an individualised clinical practice.

RELEVANCE TO CLINICAL PRACTICE

Guidelines and protocols on hydration in palliative care may be more useful as a solid reference and support for individualised practice than as instruments for standardising care. From this perspective, their development and availability in palliative care services are recommended.

The economic consequences of practice style variation in providing medical interventions: A systematic review of the literature

The practice style variation (PSV) incurs undesirable clinical and economic consequences for patients and the healthcare system. This review aims to analyze the economic consequences of PSV in medical interventions. A comprehensive electronic search was conducted through PubMed, Web of Sciences, EBSCO, EMBASE, and Cochrane databases to retrieve studies on economic consequences of PSV within 1975-2018. The studies were independently assessed by two reviewers. The quality of studies was assessed by Strengthening the Reporting of Observational Studies in Epidemiology checklist. No language restriction was applied. Only four studies met the eligibility criteria. These studies have been conducted retrospectively in developed countries. Most of the included studies used consumer demand theory to measure the economic consequences of PSV. Findings showed 12%-74% of all variations in healthcare services are related to PSV, thereby incurring up to 23 million dollars for the healthcare system. The PSV is related to the total expenditure, price elasticity, and coefficient of variation of healthcare services. PSV associated with huge inefficiency and inequity in access to healthcare services. To mitigate the consequences of PSV, policymakers should consider PSV in both developing the medical education plans as well as cost management. Using multilevel analysis to investigate the determinants of PSV would be beneficial.