Most recent update: Friday, February 28, 2020 - 09:52

Bariatric News - Cookies & privacy policy

You are here

Risk factors

Surgery can ‘radically reduce’ cardiac risk factors

Study also reports that surgery impacts risk of stroke
Impact is greater than drug treatments for weight management or diabetes
Dr James Young, lead author of the study

Bariatric surgery can radically and quickly reduce risk factors for heart disease and stroke, according to a study published online in Heart.

The study authors also claim there is also evidence for left ventricular hypertrophy regression and improved diastolic function, providing further evidence that bariatric surgery enhances future cardiacvasular health for obese individuals.

“The magnitude of effect on [cardiovascular] risk factors is impressive, and to date no pharmacological therapy for weight management or diabetes has shown a comparable effect over these short time periods,” the report states.

The researchers from the Cleveland Clinic, Ohio, also claims that the impact is much greater and faster than drug treatments for weight management or diabetes, and in some cases, could be life-saving.

The retrospective study was designed to quantify the impact of bariatric surgery on cardiovascular risk factors, cardiac structure and function.

Original articles reporting cardiovascular risk factors or non-invasive imaging parameters for patients undergoing bariatric surgery, from January 1950 to June 2012.

Data extraction from selected studies was based on protocol-defined criteria that included study design, methods, patient characteristics, surgical procedures, weight loss, changes in CV risk factors, cardiac structure and cardiac function postoperatively.

Seventy three cardiovascular risk factor studies involving 19,543 subjects were included (mean age 42 years, 76% female). Baseline prevalence of hypertension, diabetes and hyperlipidaemia were 44%, 24%, and 44%, respectively.

Mean follow-up was 57.8 months (range 3–176) and average excess weight loss was 54% (range 16–87%). Postoperative resolution or improvement of hypertension occurred in 63% of subjects, of diabetes in 73% and of hyperlipidaemia in 65%.

Echocardiographic data from 713 subjects demonstrated statistically significant improvements in left ventricular mass, E/A ratio, and isovolumic relaxation time postoperatively.

The authors found a further 18 studies, involving 713 people, which matched the criteria on the impact of gastric bypass surgery on heart failure and structural changes to the heart. Analysis of these data showed that the procedure significantly improved left ventricular mass (enlargement of the muscle tissue that makes up the heart's main pumping chamber), the E/A ratio (the proportion of blood the heart pumps out in one beat) and pump filling action (isovolumic relaxation time or the ability of the heart to relax after a contraction).

The authors claim that this research confirms the findings of previous research and raises bariatric surgery “beyond the realms of a cosmetic procedure and into the realms of interventions demonstrating efficacy in preventing cardiovascular events.”

“This systematic review highlights the benefits of bariatric surgery in reducing risk factors for CV disease and provide further evidence that bariatric surgery enhances future CV health for obese individuals,” they conclude.

Want more stories like this? Subscribe to Bariatric News!

Bariatric News
Keep up to date! Get the latest news in your inbox. NOTE: Bariatric News WILL NOT pass on your details to 3rd parties. However, you may receive ‘marketing emails’ sent by us on behalf of 3rd parties.