Antihypertensive-related adverse drug reactions among older hospitalized adults

Considering Adverse Effects of Common Antihypertensive Medications in the ED

PURPOSE OF REVIEW

To evaluate the adverse effects of common antihypertensive agents utilized or encountered in the Emergency Department.

RECENT FINDINGS

All categories of antihypertensive agents may manifest adverse effects, inclusive of adverse drug reactions (ADRs), drug-to-drug interactions, or accidental overdose. Adverse effects, and specifically ADRs, may be stratified into the organ systems affected, might require specific time-sensitive interventions, could pose particular risks to vulnerable populations, and may result in significant morbidity, and potential mortality. Adverse effects of common antihypertensive agents may be encountered in the ED, necessitating that ED systems of care are poised to prevent, recognize, and intervene when adverse effects arise.

Tolerability of Antihypertensive Medications: The Influence of Age

INTRODUCTION

Despite high prevalence of hypertension, few studies have analysed the adverse effects (AEs) of antihypertensive medications, especially in older patients.

AIM

To investigate the prevalence and associated factors of antihypertensive-related AEs, focusing on the influence of age on treatment tolerability.

METHODS

We retrospectively investigated antihypertensive-related AEs in patients evaluated at the Hypertension Clinic of Careggi Hospital, Florence, Italy, between January 2017 and July 2020. Multivariable regression models were generated to analyse variables associated with AEs in the overall sample and in participants ≥75 years.

RESULTS

Among 622 subjects (mean age 64.8 years, 51.4% female), the most frequently reported AEs were calcium-channel blockers (CCB)-related ankle swelling (26.8%) and ACEi-induced cough (15.1%). Ankle swelling was more common in older patients (35.7% vs 22.3%, p = 0.001; odds ratio [OR] 1.94, 95%CI 1.289-2.912) and was independently associated with Body Mass Index (BMI, adjOR 1.073) and angiotensin-receptor antagonists (adjOR 1.864). The association with BMI was confirmed in older patients (adjOR 1.134). ACEi-induced cough showed similar prevalence in younger and older patients (13.9% vs 15.6%, p = 0.634), being independently associated with female sex (adjOR 2.118), gastroesophageal reflux disease (GERD, adjOR 2.488) and SNRI therapy (adjOR 8.114). The association with GERD was confirmed in older patients (adjOR 3.238).

CONCLUSIONS

CCB-related ankle swelling and ACEi-induced cough represent the most common antihypertensive-related AEs, also at old age. Older patients showed a two-fold increased risk of ankle swelling, that was also independently associated with BMI. ACEi-induced cough had similar prevalence at younger and old ages, being independently associated with GERD.

Shenfu injection: a review of pharmacological effects on cardiovascular diseases

Shenfu injection (SFI), composed of ginseng and aconite, is a Chinese patent developed from the classic traditional prescription Shenfu Decoction created more than 700 years ago. SFI has been widely used in China for over 30 years for treating cardiovascular diseases. The main components in it include ginsenosides and aconitum alkaloids. In recent years, the role of SFI in the treatment of cardiovascular diseases has attracted much attention. The pharmacological effects and therapeutic applications of SFI in cardiovascular diseases are summarized here, highlighting pharmacological features and potential mechanisms developments, confirming that SFI can play a role in multiple ways and is a promising drug for treating cardiovascular diseases.

Epidemiology of adverse drug reactions to antihypertensive, antithrombotic and antidiabetic medications among adult inpatients at a National Referral Hospital, Uganda

INTRODUCTION

Treatment for hypertension, thrombosis and type 2 diabetes mellitus is long term and usually requires a combination of drugs which increases the risk of adverse drug reactions (ADRs). This study aimed to establish the prevalence at admission, incidence during hospitalization and characteristics of ADRs linked to antihypertensive, antithrombotic and antidiabetic drugs among adult inpatients in Uganda.

METHODS

We conducted a secondary analysis of data from a previously assembled prospective cohort study in Uganda's Mulago National Referral Hospital. We reviewed the files of inpatients who received antihypertensive, antithrombotic and/or antidiabetic medications prior to and/or during hospitalization. The modified Schumock and Thornton Preventability Scale, the Division of AIDS Table for Grading the Severity of Adult and Paediatric Adverse Events and the World Health Organization - Uppsala Monitoring Centre seriousness criteria were used to characterize the ADRs.

RESULTS

More than a quarter (27%, 42/155) of the inpatients experienced an ADR at admission or during hospitalization. The point prevalence of ADRs at admission was 8% (13/155) and the incidence of ADRs during hospitalization was 23% (36/155). Forty-one percent (35/86) of the ADRs were serious and the majority (59%, 51/86) were preventable.

CONCLUSION

One in 13 inpatients experienced an ADR on admission and one in four experienced an ADR that developed during hospitalization. Clinicians ought to prescribe medicines with lower ADR risk profile for cardiovascular and/or diabetic patients whenever possible.

Nurses as adverse drug reaction reporting advocates

Adverse drug reactions (ADRs) is a challenge in modern healthcare, particularly given the increasing complexity of drug therapy, an ageing population, rising multimorbidity, and a high patient turnover. The core activity of detecting potential ADRs over the last half century has been spontaneous reporting systems. A recent Norwegian regulation commits healthcare professionals other than physicians and dentists to report serious ADRs. In this discussion paper, we share our preliminary experience with a training programme using nurses as ADR advocates to stimulate ADR reporting among the clinical staff in a hospital department.

Antihypertensive treatment changes and related clinical outcomes in older hospitalized patients

BACKGROUND

Hypertension management in older patients represents a challenge, particularly when hospitalized.

OBJECTIVE

The objective of this study is to investigate the determinants and related outcomes of antihypertensive drug prescription in a cohort of older hospitalized patients.

METHODS

A total of 5671 patients from REPOSI (a prospective multicentre observational register of older Italian in-patients from internal medicine or geriatric wards) were considered; 4377 (77.2%) were hypertensive. Minimum treatment (MT) for hypertension was defined according to the 2018 ESC guidelines [an angiotensin-converting-enzyme-inhibitor (ACE-I) or an angiotensin-receptor-blocker (ARB) with a calcium-channel-blocker (CCB) and/or a thiazide diuretic; if >80 years old, an ACE-I or ARB or CCB or thiazide diuretic]. Determinants of MT discontinuation at discharge were assessed. Study outcomes were any cause rehospitalization/all cause death, all-cause death, cardiovascular (CV) hospitalization/death, CV death, non-CV death, evaluated according to the presence of MT at discharge.

RESULTS

Hypertensive patients were older than normotensives, with a more impaired functional status, higher burden of comorbidity and polypharmacy. A total of 2233 patients were on MT at admission, 1766 were on MT at discharge. Discontinuation of MT was associated with the presence of comorbidities (lower odds for diabetes, higher odds for chronic kidney disease and dementia). An adjusted multivariable logistic regression analysis showed that MT for hypertension at discharge was associated with lower risk of all-cause death, all-cause death/hospitalization, CV death, CV death/hospitalization and non-CV death.

CONCLUSIONS

Guidelines-suggested MT for hypertension at discharge is associated with a lower risk of adverse clinical outcomes. Nevertheless, changes in antihypertensive treatment still occur in a significant proportion of older hospitalized patients.

Medication adherence among persons with coronary heart disease and associations with blood pressure and low-density-lipoprotein-cholesterol

PURPOSE

To describe medication adherence to lipid-lowering drugs (LLDs), antihypertensive drugs, and acetylsalicylic acid (ASA) among persons with coronary heart disease (CHD) and explore its association with low-density-lipoprotein (LDL)-cholesterol, and systolic and diastolic blood pressure.

METHODS

Based on record linkage between the seventh wave of the Tromsø Study and the Norwegian Prescription Database, medication adherence was calculated as the proportion of days covered (PDC) for persistent prevalent users in the period of 365 days before the attendance date. Multivariable linear regression models were used to assess the association between systolic and diastolic blood pressure and medication nonadherence to antihypertensive drugs, age, sex, lifestyle, body mass index (BMI), current and previous diabetes, and between LDL-cholesterol and medication nonadherence to LLDs, age, sex, lifestyle, BMI, and current and previous diabetes.

RESULTS

Mean PDC was 0.94 for LLDs and antihypertensive drugs and 0.97 for ASA. Among persons with PDC ≥ 0.80 for LLDs, 12.0% had an LDL-cholesterol < 1.8 mmol/L. Blood pressure < 140/90 mmHg (< 140/80 mmHg if diabetes patient) was reached by 55.1% of those with a PDC ≥ 0.80 for antihypertensive drugs. Adherence to LLDs was associated with lower LDL-cholesterol, while neither systolic nor diastolic blood pressure was associated with adherence to antihypertensive drugs.

CONCLUSION

Adherence to antihypertensive drugs, LLDs, and ASA among persons with CHD were high despite low achievement of treatment goals for blood pressure and LDL-cholesterol. There was a statistically significant association between adherence to LLDs and LDL-cholesterol, but not between adherence to antihypertensive drugs and blood pressure.

This is not the time to modify a HTN regimen

Intensifying hypertension regimens at discharge increases risk in older patients.

Detection of adverse drug events in e-prescribing and administrative health data: a validation study

BACKGROUND

Administrative health data are increasingly used to detect adverse drug events (ADEs). However, the few studies evaluating diagnostic codes for ADE detection demonstrated low sensitivity, likely due to narrow code sets, physician under-recognition of ADEs, and underreporting in administrative data. The objective of this study was to determine if combining an expanded ICD code set in administrative data with e-prescribing data improves ADE detection.

METHODS

We conducted a prospective cohort study among patients newly prescribed antidepressant or antihypertensive medication in primary care and followed for 2 months. Gold standard ADEs were defined as patient-reported symptoms adjudicated as medication-related by a clinical expert. Potential ADEs in administrative data were defined as physician, ED, or hospital visits during follow-up for known adverse effects of the study medication, as identified by ICD codes. Potential ADEs in e-prescribing data were defined as study drug discontinuations or dose changes made during follow-up for safety or effectiveness reasons.

RESULTS

Of 688 study participants, 445 (64.7%) were female and mean age was 64.2 (SD 13.9). The study drug for 386 (56.1%) patients was an antihypertensive, and for 302 (43.9%) an antidepressant. Using the gold standard definition, 114 (16.6%) patients experienced an ADE, with 40 (10.4%) among antihypertensive users and 74 (24.5%) among antidepressant users. The sensitivity of the expanded ICD code set was 7.0%, of e-prescribing data 9.7%, and of the two combined 14.0%. Specificities were high (86.0-95.0%). The sensitivity of the combined approach increased to 25.8% when analysis was restricted to the 27% of patients who indicated having reported symptoms to a physician.

CONCLUSION

Combining an expanded diagnostic code set with e-prescribing data improves ADE detection. As few patients report symptoms to their physician, higher detection rates may be achieved by collecting patient-reported outcomes via emerging digital technologies such as patient portals and mHealth applications.

Factors associated with the frequency of antihypertensive drug adjustments in chronic kidney disease patients: a multicentre, 2-year retrospective study

Background Optimum antihypertensive drug effect in chronic kidney disease is important to mitigate disease progression. As frequent adjustments to antihypertensive drugs might lead to problems that may affect their effectiveness, the modifiable factors leading to frequent adjustments of antihypertensive drugs should be identified and addressed. Objective This study aims to identify the factors associated with frequent adjustments to antihypertensive drugs among chronic kidney disease patients receiving routine nephrology care. Setting Nephrology clinics at two Malaysian tertiary hospitals. Method This multi-centre, retrospective cohort study included adult patients under chronic kidney disease clinic follow-up. Demographic data, clinical information, laboratory data and medication characteristics from 2018 to 2020 were collected. Multiple logistic regression was used to identify the factors associated with frequent adjustments to antihypertensive drugs (≥ 1 per year). Main outcome measure Frequent adjustments to antihypertensive drugs. Results From 671 patients included in the study, 219 (32.6%) had frequent adjustments to antihypertensive drugs. Frequent adjustment to antihypertensive drugs was more likely to occur with follow-ups in multiple institutions (adjusted Odds Ratio [aOR] 1.244, 95% confidence interval [CI] 1.012, 1.530), use of traditional/complementary medicine (aOR 2.058, 95% CI 1.058, 4.001), poor medication adherence (aOR 1.563, 95% CI 1.037, 2.357), change in estimated glomerular filtration rate (aOR 0.970, 95% CI 0.951, 0.990), and albuminuria categories A2 (aOR 2.173, 95% CI 1.311, 3.603) and A3 (aOR 2.117, 95% CI 1.349, 3.322), after controlling for confounding factors. Conclusion This work highlights the importance of close monitoring of patients requiring initial adjustments to antihypertensive drugs. Antihypertensive drug adjustments may indicate events that could contribute to poorer outcomes in the future.

The Effect of Continuous Positive Airway Pressure Therapy on Obstructive Sleep Apnea-Related Hypertension

Obstructive sleep apnea (OSA) is a common disease, with approximately 3-7% of men and 2-5% of women worldwide suffering from symptomatic OSA. If OSA is left untreated, hypoxia, microarousals and increased chemoreceptor stimulation can lead to complications like hypertension (HT). Continuous positive airway pressure (CPAP) is the most common treatment for OSA, and it works by generating airway patency, which will counteract the apnea or hypopnea. More than one billion people in the world suffer from HT, and the usual treatment is pharmacological with antihypertensive medication (AHM). The focus of this review will be to investigate whether the CPAP therapy for OSA affects HT.