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This study aimed to evaluate the efficacy of single-pill combination (SPC) antihypertensive drugs in patients with uncontrolled essential hypertension. Through Searching Pubmed, EMBASE, the Cochrane Library, and Web of Science collected only randomized controlled trials on the efficacy of single-pill combination antihypertensive drugs in people with uncontrolled essential hypertension. The search period is from the establishment of the database to July 2022. The methodological quality of the included studies was assessed using the Cochrane Risk of Bias Assessment, and statistical analyses were performed using Review Manage 5.3 and Stata 15.1 software. This review ultimately included 32 references involving 16 273 patients with uncontrolled essential hypertension. The results of the network meta-analysis showed that a total of 11 single-pill combination antihypertensive drugs were included, namely: Amlodipine/valsartan, Telmisartan/amlodipine, Losartan/HCTZ, Candesartan/HCTZ, Amlodipine/benazepril, Telmisartan/HCTZ, Valsartan/HCTZ, Irbesartan/amlodipine, Amlodipine/losartan, Irbesartan/HCTZ, and Perindopril/amlodipine. According to SUCRA, Irbesartan/amlodipine may rank first in reducing systolic blood pressure (SUCRA: 92.2%); Amlodipine/losartan may rank first in reducing diastolic blood pressure (SUCRA: 95.1%); Telmisartan/amlodipine may rank first in blood pressure control rates (SUCRA: 83.5%); Amlodipine/losartan probably ranks first in diastolic response rate (SUCRA: 84.5%). Based on Ranking Plot of the Network, we can conclude that single-pill combination antihypertensive drugs are superior to monotherapy, and ARB/CCB combination has better advantages than other SPC in terms of systolic blood pressure, diastolic blood pressure, blood pressure control rate, and diastolic response rate. However, due to the small number of some drug studies, the lack of relevant studies has led to not being included in this study, which may impact the results, and readers should interpret the results with caution.

Abstract licence: CC BY

Cardiovascular conditions disrupt the normal functioning of the heart and blood vessels, often due to underlying conditions like atherosclerosis or hypertension. Antihypertensive medications are essential in cardiovascular disease management, encompassing several major drug classes with distinct mechanisms of action. Hence, this review evaluated the impact of various antihypertensive treatments on cardiovascular event reduction in asymptomatic carotid artery stenosis (CAS) patients. A comprehensive literature search was conducted from inception to 2024 on various databases by using specific keywords, and based on the eligibility criteria, three observational cohort studies and six randomized controlled trials (RCTs) of the 540 records retrieved were incorporated in this systematic review. The Newcastle-Ottawa scale was used to assess the methodological quality of the cohort studies, and the risk of bias visualization tool was used for RCTs. Data were then systematically extracted and analyzed. The results reported that enalapril and fosinopril demonstrated dual benefits in blood pressure (BP) reduction and vascular remodeling, though meta-analysis showed statistically insignificant improvements in regional cerebral blood flow (CI: -0.84, 6.08, P = 0.14, I2= 94%). Similarly, isradipine, lacidipine, and amlodipine improved carotid hemodynamics and cerebral perfusion, with meta-analysis favoring calcium channel blocker intervention for blood pressure management (CI: -3.25 to 7.64, P = 0.43). On the other hand, thiazide diuretics effectively reduced BP but showed limited efficacy in preventing atherosclerosis progression. In addition, angiotensin II receptor blockers (ARBs) significantly reduced 5-year stroke rates from 11% to 3.5%. Moreover, beta-blockers showed specific benefits, with metoprolol improving plaque echogenicity (57.3 ± 16.8 vs. 51.8 ± 20.0, p = 0.006) and reducing cardiovascular events (17% vs. 37% placebo, p = 0.011), while labetalol effectively managed post-endarterectomy hypertension. In conclusion, antihypertensive treatments showed varying effectiveness in cardiovascular event reduction and improvements in vessel measures.

Abstract licence: CC BY

Dihydropyridine calcium channel blockers (DHPCCBs) are widely used to treat hypertension and chronic coronary artery disease. One common adverse effect of DHPCCBs is peripheral edema, particularly of the lower limbs. The side effect could lead to dose reduction or discontinuation of the medication. The combination of DHPCCBs and renin-angiotensin system blockers has shown to reduce the risk of DHPCCBs-associated peripheral edema compared with DHPCCBs monotherapy. We performed the current systematic review and network meta-analysis of randomized controlled trials (RCTs) to estimate the rate of peripheral edema with DHPCCBs as a class and with individual DHPCCBs and the ranking of the reduction of peripheral edema. The effects of renin-angiotensin system blockers on DHPCCBs network meta-analysis were created to analyze the ranking of the reduction of peripheral edema. A total of 3312 publications were identified and 71 studies with 56,283 patients were included. Nifedipine ranked highest in inducing peripheral edema (SUCRA 81.8%) and lacidipine (SUCRA 12.8%) ranked the least. All DHPCCBs except lacidipine resulted in higher relative risk (RR) of peripheral edema compared with placebo. Nifedipine plus angiotensin receptor blocker (SUCRA: 92.3%) did not mitigate peripheral edema and amlodipine plus angiotensin-converting enzyme inhibitors (SUCRA: 16%) reduced peripheral edema the most. Nifedipine ranked the highest and lacidipine ranked the lowest amongst DHPCCBs for developing peripheral edema when used for cardiovascular indications. The second or higher generation of DHPCCBs combination with ACEIs or ARBs or diuretics lowered the chance of peripheral edema development compared to single DHPCCB treatment.

Abstract licence: CC BY-NC

BackgroundResistant hypertension (RH) is defined as uncontrolled blood pressure (BP) despite treatment with at least three or more antihypertensive agents. Compelling evidence has shown that such a population has a greater risk of cardiovascular events as well as mortality. Although mineralocorticoid receptor antagonists (MRAs) have been shown to be an effective fourth-line treatment for RH, a significant proportion of RH patients do not achieve their blood pressure target. Compound reserpine and triamterene tablets, a traditional Chinese quadruple single-pill combination, have been proven to have good antihypertensive effects as well as safety, and are promising effective antihypertensive drugs for treating RH.MethodsA randomized crossover clinical trial will be conducted to compare the efficacy and safety of compound reserpine and triamterene tablets treatment regimen (two tablets of olmesartan/amlodipine (OA) + one tablet of compound reserpine and triamterene tablets) with those of a standard treatment regimen (two tablets of OA + indapamide 2.5 mg + spironolactone 20 mg) in patients with RH. Forty patients will be recruited and randomly assigned in a 1:1 ratio to 2 crossover groups. The two groups will receive different combination therapies for 6 weeks and will then switch to the other combination therapy for 6 weeks, with a 4-week wash-out. The primary outcome will be the reduction in average 24-h systolic blood pressure after 6 weeks of intervention between the two groups.DiscussionThis study aimed to evaluate whether the compound reserpine and triamterene tablets treatment regimen (A + C + 0) results in a greater reduction in blood pressure in RH patients than the standard treatment regimen (A + C + D + spironolactone).Trial registrationChinese Clinical Trial Registry ChiCTR2400081878. Registered on March 14, 2024 ( http://www.chictr.org.cn ).

Abstract licence: CC BY