New Ultrasound Therapy for Aortic Stenosis Developed

Scientists have developed new Non-Invasive Ultrasound Therapy (NIUT) for the treatment of cardio-valvular diseases such as aortic stenosis.

A new Non-Invasive Ultrasound Therapy (NIUT) for the treatment of cardio-valvular diseases such as aortic stenosis has been developed by Cardiawave (France).

A First-in-Man clinical trial in 10 patients to validate Cardiawave's innovative medical technology (labelled as the Valvosoft device) was conducted in Hôpital Européen Georges-Pompidou, Paris, France and in the Amphia Hospital, Breda, the Netherlands. These patients were not suitable for transcatheter aortic valve replacement (TAVR) or open-heart surgery, mainly due to the presence of concomitant diseases or problems to obtain access to the blood vessels with a catheter. Therefore, like 16% of people affected by severe symptomatic aortic stenosis (1.3 million people in Europe), they were left without alternative treatment.

Aortic Valve Stenosis - Causes - Symptoms - Diagnosis - Replacement
Aortic valve Stenosis is an abnormal narrowing of the c valve. Symptoms include angina, and that of heart failure. Aortic valve replacement is effective therapy.

‘Aortic stenosis is the primary valve disease in adults and one of the leading causes of cardiovascular death worldwide which affects 10 million people in Europe and the USA.’

The mechanism of this groundbreaking technology developed by Cardiawave consists in widening the opening of the aortic valve by delivering short sequences of high intensity ultrasounds, focused directly onto the valve from outside the body, thus eliminating the need for invasive treatment.

The results of the study are very promising. Analysis of the patients' heart condition by echocardiography performed by an independent core laboratory, and of the clinical results at 6 months, confirms that this procedure is safe and can improve the condition of the heart and the clinical status of these very sick patients. For them, this new therapy can be a major therapeutic opportunity given the absence of other solutions.

In the near future, this therapy might be used for other indications, such as to improve patients' condition and prepare them for TAVR (bridge to TAVR) and for less sick patients (severe asymptomatic and moderate aortic stenosis) to slow down the progression of their disease and delay the moment they need replacement of their valves.

About Ultrasound
Ultrasound scan or sonogram uses sound waves to obtain images of the internal organs. Ultrasound scan is used during pregnancy and to examine breast, abdomen, renal and thyroid.

This therapy can be done ambulatory and can be very cost-effective. In addition, as it is non-invasive, it most probably can be repeated to further improve or maintain its effect.

This work is supported by the French Government, managed by the National Research Agency (ANR) under the program "Investissements d'Avenir" with the references ANR-16-RHUS-0003_STOP-AS and ANR-17-CE 19-00 19-03 and has received funding from the European Union's Horizon 2020 research and innovation programme under accreditation n° 829492.

Patients With Aortic Stenosis may benefit from Early Valve Replacement
Patients with severe aortic stenosis who have no symptoms may benefit more from an aggressive strategy of early valve replacement than from a conservative watch-and-wait approach.

Source-Eurekalert

Clinical Treatment for Older Patients With Aortic Stenosis
Older patients with severe aortic valve stenosis who undergo aortic valve replacement procedures with expectation that their functional status improves, those with severe frailty, have functional decline.