April is still not a suitable time for swimming, the average sea temperature in April is about 15Â°C (59Â°F) .he daytime maximum temperature reaches 19Â°C (66.2Â°F) and at night the air temperature minimum drops to 9Â°C (48.2Â°F) . The average daytime air temperature is about 16.9Â°C (62.4Â°F) , the average temperature at night is 10Â°C (50Â°F) .
Angioplasty (or Balloon angioplasty) is an endovascular procedure to widen narrowed or obstructed arteries or veins, typically to treat arterial atherosclerosis.An empty, collapsed balloon, known as a balloon catheter, is passed over a wire into the narrowed locations and then inflated to a fixed size.ngioplasty (or Balloon angioplasty) is an endovascular procedure to widen narrowed or obstructed arteries or veins, typically to treat arterial atherosclerosis. An empty, collapsed balloon, known as a balloon catheter, is passed over a wire into the narrowed locations and then inflated to a fixed size.
Some common angioplasty techniques include the following: atherectomy, which opens occluded, scarred, or calcified vessels by removing atherosclerotic plaques with rapidly rotating drills; balloon angioplasty, which uses the inflation of high-pressure balloons within blocked arteries to force them open; laser and radiofrequency angioplasties, which vaporize or ablate atherosclerotic plaques; endovascular stents, which hold vessels open with expandable lattices inserted across the narrowed ...