Interventions aimed to increase average 24-h systolic blood pressure reduce blood pressure drops in patients with reflex syncope and orthostatic intolerance.

AIMS: Systolic blood pressure (SBP) drops recorded by 24-h ambulatory blood pressure (BP) monitoring (ABPM) identify patients with susceptibility to reflex syncope and orthostatic intolerance. We tested the hypothesis that treatments aimed to increase BP (reassurance, education, and lifestyle measures plus pharmacological strategies) can reduce SBP drops. METHODS AND RESULTS: This was a multicentre, observational proof-of-concept study performed in patients with reflex syncope and/or orthostatic intolerance and with SBP drops on a screening ABPM. Among 144 eligible patients, 111 underwent a second ABPM on average 2.5 months after start of treatment. Overall, mean 24-h SBP increased from 114.1 ± 12.1 to 121.4 ± 14.5 mmHg (P < 0.0001). The number of SBP drops <90 and <100 mmHg decreased by 61%, 46% during daytime, and by 48% and 37% during 24-h period, respectively (P < 0.0001 for all). The dose-response relationship between difference in 24-h average SBP increase and reduction in number of SBP drops reached a plateau around ∼15 mmHg increase of 24-h SBP. The reduction in SBP drop rate was consistent and significant in patients who underwent deprescription of hypotensive medications (n = 44) and in patients who received BP-rising drugs (n = 67). CONCLUSION: In patients with reflex syncope and/or orthostatic intolerance, an increase in average 24-h SBP, regardless of the implemented strategy, significantly reduced the number of SBP drops and symptom burden. A 13 mmHg increase in 24-h SBP appears to represent the optimal goal for aborting the maximal number of SBP drops, representing a possible target for future interventions. ClincalTrials.gov identifier: NCT05729724.

Advancing healthcare through thoracic ultrasound research in older patients.

This paper reports the proceedings of a meeting convened by the Research Group on Thoracic Ultrasound in Older People of the Italian Society of Gerontology and Geriatrics, to discuss the current state-of-the-art of clinical research in the field of geriatric thoracic ultrasound and identify unmet research needs and potential areas of development. In the last decade, point-of-care thoracic ultrasound has entered clinical practice for diagnosis and management of several respiratory illnesses, such as bacterial and viral pneumonia, pleural effusion, acute heart failure, and pneumothorax, especially in the emergency-urgency setting. Very few studies, however, have been specifically focused on older patients with frailty and multi-morbidity, who frequently exhibit complex clinical pictures needing multidimensional evaluation. At the present state of knowledge, there is still uncertainty on the best requirements of ultrasound equipment, methodology of examination, and reporting needed to optimize the advantages of thoracic ultrasound implementation in the care of geriatric patients. Other issues regard differential diagnosis between bacterial and aspiration pneumonia, objective grading of interstitial syndrome severity, quantification and monitoring of pleural effusions and solid pleural lesions, significance of ultrasonographic assessment of post-COVID-19 sequelae, and prognostic value of assessment of diaphragmatic thickness and motility. Finally, application of remote ultrasound diagnostics in the community and nursing home setting is still poorly investigated by the current literature. Overall, the presence of several open questions on geriatric applications of thoracic ultrasound represents a strong call to implement clinical research in this field.

Targets for deprescribing in patients with hypertension and reflex syncope.

BACKGROUND: We aimed to identify the target of deprescribing, i.e. the 24-hour SBP increase needed to achieve the greatest reduction of SBP drops. METHOD: Forty hypertensive patients (mean age 73.6 ± 9.3 years, 26 females) with reflex syncope and SBP drops on a screening ABPM were advised to withdraw or to reduce their therapy. The study objective was the reduction of SBP drops <90 mmHg and <100 mmHg on a second ABPM performed within 3 months. RESULTS: Out of a total of 98 drugs taken during ABPM 1, 44 were withdrawn, 16 had a dose reduction and 38 remained unchanged at the time of ABPM 2. 24-hour SBP increased from 119.7 ± 10.1 mmHg to 129.4 ± 13.2 mmHg during ABPM2. Total disappearance of daytime SBP drops <100 mmHg was achieved in 20 (50 %) patients who had 24-hour SBP of 134±13 mmHg and an increase from ABPM 1 of 12 (IQR 5-20) mmHg. Compared with the 20 patients who had persistence of drops, these patients had a greater reduction of the number of hypotensive drugs (67 % versus 19 %, p = 0.002) and a greater rate of withdrawals (62 % versus 29 %, p = 0.003). CONCLUSION: In hypertensive patients with reflex syncope, an increase of 12 mmHg and an absolute value of 24-hour SBP of 134 mmHg appear to represent the optimal goals aimed to prevent SBP drops. Drugs withdrawal, rather than simply dose reduction, is mostly required to achieve the above target.

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.

Comparison of different frailty instruments for prediction of functional decline in older hypertensive outpatients (HYPER-FRAIL pilot study 2).

BACKGROUND AND AIMS: Few studies have evaluated frailty in older hypertensive individuals and the most appropriate tools to identify frailty in this population have yet to be identified. This study compared the performance of six frailty instruments in the prediction of 1-year functional decline in older hypertensive outpatients. METHODS: The HYPERtension and FRAILty in Older Adults (HYPER-FRAIL) longitudinal pilot study involved hypertensive participants ≥75 years from two geriatric outpatient clinics at Careggi Hospital, Florence, Italy, undergoing identification of frailty with four frailty scales (Fried Frailty Phenotype, Frailty Index [FI], Clinical Frailty Scale [CFS], Frailty Postal Score) and two physical performance tests (Short Physical Performance Battery [SPPB] and gait speed). Prediction of 1-year functional decline (i.e. a ≥ 10-point Barthel Index decrease between baseline and follow-up) was examined based on ROC curve analysis and multivariable logistic regression. RESULTS: Among 116 participants, 24 % reported functional decline. In the ROC curve analyses, FI (AUC=0.76), CFS (AUC=0.77), gait speed (AUC=0.73) and the SPPB (AUC=0.77) achieved the best predictive performance, with FI ≥0.21 and CFS ≥4 showing the highest sensitivity (82 %) and negative predictive value (91 %). Frailty identified with FI, CFS or physical performance tests was associated with an increased risk of 1-year functional decline, independently of baseline functional status and comorbidity burden. CONCLUSIONS: FI, CFS and physical performance tests showed similar predictive ability for functional decline in hypertensive outpatients. The CFS and gait speed might be more suitable for clinical use and may be useful to identify non-frail individuals at lower risk of functional decline.

Risks associated with intensive blood pressure control in older patients.

Hypertension management forms a cornerstone of cardiovascular prevention. Strong evidence is available supporting the benefits of blood pressure (BP) lowering in older adults, and recent studies indicate that intensive BP control may provide additional advantages concerning cardiovascular and mortality risk, also at older ages. Yet, in older adults, the cardiovascular benefit of intensive treatment may come at the expense of an increase in adverse events. Indeed, advanced age and frailty may modify the risk/benefit ratio of BP lowering due to a greater predisposition to hypotension and more severe consequences deriving from treatment-related adverse effects. This mostly applies to individuals with poor health status and limited life expectancy, in whom aggressive BP lowering may not lead to cardiovascular benefits but rather increase the risk of short-term treatment-related complications. Furthermore, potential harms of intensive BP control might be underestimated in clinical trials due to exclusion criteria that preclude patients with frailty and multimorbidity from being eligible. Syncope and falls are the most frequently mentioned safety concerns related to antihypertensive treatment, but aggressive BP lowering may affect negatively also renal function, cognitive performance, quality of life, and survival. With the growing emphasis on intensive treatment strategies, raising the awareness of potential harms associated with aggressive BP lowering might help improve hypertension management in older adults and encourage implementation of clinical research on safety. Given these premises, we present a narrative review illustrating the most relevant risks associated with intensive BP control in older patients.