TopicHypertension - Should We Be Concerned?
So, what is this revolutionary procedure that is getting the medical StrictionBP world so excited Basically, it involves disrupting the signal from the brain that informs the kidneys to maintain a raised level of blood pressure. Under local anesthesia, a wire is inserted into one of the patient's blood vessels very close to their kidneys and an electric charge is applied that allows the heated wire to burn through the nerves that are responsible for carrying the signals from the brain to the part of the kidneys that maintains high blood pressure. Results from these international clinical trials offer hope to billions of sufferers - and early indications appear to suggest that this procedure is effective within three months of it being carried out.
The name given to this new surgical procedure is renal sympathetic-nerve ablation. Following the success of these clinical trials, this revolutionary procedure was carried out in London by a cardiologist, Professor Martin Rothman on a diabetic patient, Mr Henry, who was one of a group of sufferers taking part in the clinical trials. Mr Henry already had a history of deep vein thrombosis and had suffered a stroke as the result of high blood pressure. Reports indicate that Mr Henry's blood pressure had come down within two weeks' of the operation. The patient was awake throughout the operation and left hospital the following day, having been kept in overnight as a safety precaution. Professor Rothman who carried out this first procedure believes that mortality from strokes could be reduced by as much as 50%, at a cost of around £4,000 per patient.
It's easy to imagine the cardiovascular system in a simplistic way. First of all, the heart is the pump. It can vary the fluid flow in the system by either pumping more forcefully, more frequently, or by increasing pump volume. Then there are the pipes, which are the arteries and the veins. The pressure and velocity in the vascular system depends on the diameters and tone of the pipes. Think of squeezing a garden hose and feeling the pressure and velocity rise. The main plumbers in the system are the kidneys, making constant adjustments in the fluid viscosity and in the pipes' diameters with chemical vascular tone enhancers or tone reducers.