Essential Cardiovascular Disease Research Articles

Clinical Significance of the Cardio-Ankle Vascular Index in Postmenopausal Women With Hypercholesterolemia

Background: The cardio-ankle vascular index (CAVI) is a physiological indicator of arterial elasticity. However, limited information regarding the clinical significance of the CAVI in patients with hypercholesterolemia is available. This cross-sectional study aimed to elucidate the clinical significance of the CAVI for the primary prevention of cardiovascular disease (CVD) among postmenopausal women with hypercholesterolemia. Methods: A total of 168 untreated postmenopausal hypercholesterolemic women (low-density lipoprotein cholesterol levels ≥ 140 mg/dL, mean age ± standard deviation, 63 ± 10 years) with no history of CVD events were enrolled. The CAVI was measured using commercial devices, after which, its relationships with various clinical parameters, such as carotid artery ultrasonography findings and CVD biomarkers, were examined. Results: A significant positive correlation was observed between the CAVI and maximum intima-media thickness of the common carotid artery (max-C-IMT), which was evaluated using carotid artery ultrasonography (r = 0.49, P < 0.001). Regarding CVD biomarkers, the CAVI was significantly correlated with estimated glomerular filtration rate (r = -0.18, P < 0.001), high-sensitivity C-reactive protein (r = 0.36, P < 0.001), whole blood passage time as a marker of blood rheology (r = 0.41, P < 0.001), and skin autofluorescence as a marker of advanced glycation end products in tissues (r = 0.46, P < 0.001), although no significant correlation was noted between serum lipid parameters and the CAVI. Multiple regression analysis identified max-C-IMT (β = 0.35, P < 0.001), whole blood passage time (β = 0.18, P = 0.007), skin autofluorescence (β = 0.17, P = 0.011), and age (β = 0.16, P = 0.018) as variables independently associated with CAVI. Conclusion: The present study indicated that the CAVI is an essential CVD risk factor among postmenopausal women with hypercholesterolemia. Moreover, impaired blood rheology and increase of skin autofluorescence were associated with elevated CAVI in such patients. J Clin Med Res. 2021;13(5):276-282 doi: https://doi.org/10.14740/jocmr4509

Clinical Significance of the Cardio-Ankle Vascular Index in Postmenopausal Women With Hypercholesterolemia.

BackgroundThe cardio-ankle vascular index (CAVI) is a physiological indicator of arterial elasticity. However, limited information regarding the clinical significance of the CAVI in patients with hypercholesterolemia is available. This cross-sectional study aimed to elucidate the clinical significance of the CAVI for the primary prevention of cardiovascular disease (CVD) among postmenopausal women with hypercholesterolemia.MethodsA total of 168 untreated postmenopausal hypercholesterolemic women (low-density lipoprotein cholesterol levels ≥ 140 mg/dL, mean age ± standard deviation, 63 ± 10 years) with no history of CVD events were enrolled. The CAVI was measured using commercial devices, after which, its relationships with various clinical parameters, such as carotid artery ultrasonography findings and CVD biomarkers, were examined.ResultsA significant positive correlation was observed between the CAVI and maximum intima-media thickness of the common carotid artery (max-C-IMT), which was evaluated using carotid artery ultrasonography (r = 0.49, P < 0.001). Regarding CVD biomarkers, the CAVI was significantly correlated with estimated glomerular filtration rate (r = -0.18, P < 0.001), high-sensitivity C-reactive protein (r = 0.36, P < 0.001), whole blood passage time as a marker of blood rheology (r = 0.41, P < 0.001), and skin autofluorescence as a marker of advanced glycation end products in tissues (r = 0.46, P < 0.001), although no significant correlation was noted between serum lipid parameters and the CAVI. Multiple regression analysis identified max-C-IMT (β = 0.35, P < 0.001), whole blood passage time (β = 0.18, P = 0.007), skin autofluorescence (β = 0.17, P = 0.011), and age (β = 0.16, P = 0.018) as variables independently associated with CAVI.ConclusionThe present study indicated that the CAVI is an essential CVD risk factor among postmenopausal women with hypercholesterolemia. Moreover, impaired blood rheology and increase of skin autofluorescence were associated with elevated CAVI in such patients.

Solving the problem of access to cardiovascular medicines: revolving fund pharmacy models in rural western Kenya

Availability of medicines for treatment of cardiovascular disease (CVD) is low in low-income and middle-income countries (LMIC). Supply chain models to improve the availability of quality CVD medicines in LMIC...

Availability and affordability of medicines and cardiovascular outcomes in 21 high-income, middle-income and low-income countries

ObjectivesWe aimed to examine the relationship between access to medicine for cardiovascular disease (CVD) and major adverse cardiovascular events (MACEs) among people at high risk of CVD in high-income countries...

Relationship between pharmaceutical pricing strategies with price, availability, and affordability of cardiovascular disease medicines: surveys in Qatar and Lebanon

BackgroundCardiovascular diseases are the leading cause of death in Lebanon and Qatar. When lifestyle modifications prove insufficient, medication becomes a cornerstone in controlling such diseases and saving lives. Price, availability, and affordability hinder the equitable access to medicines. The study aimed to assess prices, availability, and affordability of essential cardiovascular disease medicines in relation to pricing strategies in Qatar and Lebanon.MethodsA cross-sectional survey using a variant of the World Health Organization and Health Action International (WHO/HAI) methodology as outlined in “Measuring medicine prices, availability, affordability and price components” (2008), second edition, was adopted. Prices and availability of 27 cardiovascular medicines were collected from public and private dispensing outlets. For international comparison, prices were adjusted to purchasing power parity. Data was analyzed across multiple sectors, within and across countries.ResultsA total of 15 public and private outlets were surveyed in each country. Prices were more uniform in Qatar than in Lebanon. In the public sector, medicines were free-of-charge in Lebanon and priced lower than the international reference prices in Qatar. The ratio of medicine unit price to international reference price in the private sectors surveyed are significantly higher than the acceptable threshold of 4. This ratio of originator brands and lowest priced generics in Qatar were up to two and five times those in Lebanon, respectively, even after adjusting for purchasing power parity. However, prices of lowest priced generics in the private sector were at least 35% cheaper in Qatar and 65% cheaper in Lebanon than their comparative originator brands. Medicines were more available in the private sector in Lebanon than in Qatar, but only the originator brand availability in the public sector in Qatar exceeded the WHO target of more than 80%. While affordable in the public sector in Qatar, four out of thirteen medicines exceeded the threshold in all private sectors covered. Hence, only the public sector in Qatar had a satisfying level of availability and affordability.ConclusionsExcept for the Qatari public sector, medicine prices, availability, and affordability are falling short from targets. Key policy decisions should be implemented to improve access to medicines.

P6147Access to essential cardiovascular medicines in Kerala, the state with the highest cardiovascular disease burden in India

Abstract Introduction The 2030 Agenda for Sustainable Development has prioritized the reduction of premature mortality due to NCDs – including cardiovascular diseases (CVD) - by a third. To achieve this goal, countries must achieve 80% availability of affordable essential medicines. Essential medicines as identified by the World Health Organization are those that meet the priority healthcare needs of majority population. Globally, India has the second highest CVD burden with over 1.7 million deaths annually, with the highest CVD morbidity and mortality rate in Kerala. Purpose To evaluate the availability, prices and affordability of essential CVD medicines in Kerala state to facilitate implementation of informed public health policy. Methods Using WHO/HAI methodology, we obtained data on availability and prices for 25 essential CVD medicines in a representative sample of 7 public-sector hospitals (survey anchors) and 37 private retail pharmacies located near the survey anchors in four districts. Additionally, we obtained the data from 10 government-subsidized discount pharmacies. We report availability as percentage of surveyed facilities where a given medicine was found. Median prices ratios (MPRs) were calculated by comparing consumer prices to the MSH International Reference Prices (IRPs). Medicines were considered affordable if the monthly supply costs less than one-day's wage of the lowest paid government worker. Results In the public-sector facilities (hospital and discount pharmacies combined), the mean (SD) availability of the surveyed CVD medicines was 52% (35.3%) for generic and 35.3% (20.7%) for originator brand (OB) version. 28% of surveyed medicines (including amlodipine, clopidogrel, losartan, metformin) were available in over 80% pharmacies. 12% (captopril, streptokinase and glyceryl trinitrate) were not available in any of the facilities. In the private sector, mean (SD) availability of generic and OB versions was 64.4% (37.2%) and 43.7% (34.6%), respectively. MPR was 1.28 [range: 0.02 (insulin NPH) – 16.7 (simvastatin)] for both lowest-priced generics (LPG) and most-sold generics (MSG). The lowest paid government worker in Kerala would spend 0.06 - 3.48 days' wages for the monthly supply of essential CVD medicines in the private sector. In government-subsidized discount pharmacies, mean availability was 49.3%. The generic medicine prices were 74% lower than in the private sector. Conclusions Availability of essential CVD medications in both public and private sector pharmacies fall short of the 80% target. In the private-sector, many essential CVD medications seem unaffordable especially considering the polypharmacy among CVD patients. Introducing policies to improve medicine availability in government-subsidized discount pharmacies is crucial in tackling Kerala's ever-increasing CVD burden.