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Vascular stents are used to treat a wide range of conditions caused by narrowed or blocked blood vessels. One of the most common indications is coronary artery disease, where plaque buildup restricts blood flow to the heart muscle. Stents restore circulation and reduce the risk of heart attacks.

Peripheral artery disease is another condition frequently treated with stents. Reduced blood flow to the legs can cause pain during walking, non-healing wounds, and, in severe cases, tissue death. Stenting improves circulation and helps preserve limb function.

Carotid artery stenosis, which affects blood flow to the brain, increases the risk of stroke. Stents may be used as an alternative to surgery in select patients to stabilize plaque and maintain vessel patency.

Renal artery stenosis can lead to high blood pressure and kidney dysfunction. Stents help restore blood flow to the kidneys, improving organ function and blood pressure control.

In some cases, stents…

Ureteral stents are used across a wide range of medical conditions that affect urine flow. One of the most frequent indications is kidney stones. Large or impacted stones can block the ureter, leading to severe pain and infection. A stent allows urine to bypass the obstruction while further treatment is planned.

Post-surgical swelling is another common reason for stent placement. After procedures such as ureteroscopy or kidney surgery, inflammation may temporarily narrow the ureter. A stent maintains patency during the healing process.

Ureteral strictures—abnormal narrowing caused by scar tissue—also necessitate stenting. These strictures may result from previous surgeries, infections, or radiation therapy. Stents help prevent kidney damage by restoring normal urine flow.

In cases of tumors pressing on the ureter, either from within or externally, stents are used to counteract compression. This is particularly important in pelvic or abdominal cancers, where tumor growth can compromise ureteral function.

Infectious conditions, such…

De Geopolitiek van Chips: Amerika's Zoektocht naar Zelfvoorziening

Het chiptekort heeft de afhankelijkheid van de Amerikaanse auto-industrie van toeleveranciers in Azië (met name Taiwan en Zuid-Korea) pijnlijk blootgelegd. Als reactie hierop heeft de Amerikaanse regering de CHIPS and Science Act aangenomen, die miljarden dollars aan subsidies en investeringen in de binnenlandse halfgeleiderproductie mogelijk maakt.

Het doel is om de productie van geavanceerde chips terug te brengen naar de VS, de toeleveringsketen te verzekeren en de nationale en economische veiligheid te vergroten. Dit is een langetermijnstrategie, maar het kan de industrie op de lange termijn veerkrachtiger maken.

Veelgestelde Vragen

V: Welke bedrijven bouwen fabrieken in de VS?A: Intel, TSMC (Taiwan) en Samsung (Zuid-Korea) hebben allemaal plannen aangekondigd voor grote nieuwe chipfabrieken ("fabs") in Arizona, Ohio en Texas.

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