The Kyoto Heart Study Shows Improved Results

by Aruna on  September 04, 2009 at 10:57 AM Research News
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The Kyoto Heart Study Shows Improved Results
The KYOTO HEART Study, which took place in Japan between January 2004 and January 2009, shows successful results.

The KYOTO HEART Study, shows that the addition of valsartan to conventional antihypertensive treatment to improve blood pressure control is associated with an improved cardiovascular outcome in Japanese hypertensive patients at high risk of CVD events.

It remains to be determined whether the evidence found in Western countries for the benefit of blockade of the renin-angiotensin system could be directly applied in East Asian populations, including Japanese, as a long-term strategy. The KYOTO HEART Study was designed to investigate the add-on effect of valsartan (an angiotensin II receptor antagonist, ARB) versus non-ARB optimal antihypertensive treatment on cardiovascular morbidity and mortality in Japanese hypertensive patients with uncontrolled blood pressure and high cardiovascular risks.

The KYOTO HEART Study was a multicentre, prospective, randomized comparison study with a response-dependent dose titration scheme. More than 3000 Japanese patients were assessed for eligibility (43% female, mean age 66 years); all had uncontrolled hypertension and with one or more cardiovascular risk factors (such as diabetes, smoking habit, lipid metabolism abnormality, a history of ischaemic heart disease, cerebrovascular disease or peripheral arterial occlusive disease, obesity (BMI>25) and left ventricular hypertrophy on electrocardiogram). 3031 patients were randomized to receive either additional treatment with valsartan or non-ARB conventional therapies.

The primary endpoint was a composite of defined cardio- or cerebrovascular events such as stroke/transient ischemic attack, myocardial infarction, hospitalisation for heart failure, hospitalisation for angina pectoris, aortic dissection, lower limb arterial obstruction, emergency thrombosis, transition to dialysis, or doubling of serum creatinine levels.

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