Polskie Archiwum Medycyny Wewnętrznej
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Pol. Arch. Med. Wewn. · Dec 2023
18F-fluorodeoxyglucose and 18F-sodium fluoride positron emission tomography imaging in assessing early stages of aortic valve degeneration after transcatheter aortic valve implantation.
Transcatheter aortic valve implantation (TAVI) is a standard treatment for severe aortic stenosis, primarily in elderly patients. With an increasing number of procedures and younger patients, understanding the valve degeneration and its risk factors becomes crucial. ⋯ Twenty‑four months post‑TAVI, an increase in 18F‑FDG uptake, indicative of inflammation, was observed in the valve, while the uptake of the calcification marker (18F‑NaF) remained stable. Theseobservations might suggest early stages of TAVI valve degeneration, although further investigation is required to confirm this interpretation.
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Pol. Arch. Med. Wewn. · Dec 2023
Functional magnetic resonance imaging for assessment of the autonomic dysfunction in patients with ANCA-associated vasculitides.
Nervous system involvement is common in antineutrophil cytoplasmic antibody-associated vasculitides (AAV). While the involvement of the peripheral and central nervous system is well described, it is still unclear how and to what extent the autonomic nervous system (ANS) is affected. Functional magnetic resonance imaging (fMRI) can provide information on both structure and potential damage of the brain, as well as on the function of selected brain centers. ⋯ The patients with AAV reported symptoms related to the ANS dysfunction; however, no differences with respect to the functioning of the ANS brain centers were demonstrated between these patients and healthy controls in the fMRI study during the Valsalva maneuver.
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Resistant hypertension is defined as not achieving sufficient control of blood pressure (BP), that is, maintaining BP values equal to or above 140/90 mm Hg when using 3 antihypertensive drugs, including diuretics, properly combined and at maximum doses. The uncontrolled treated hypertension should be confirmed in out‑of‑office BP measurements, preferably with 24‑hour ambulatory BP monitoring. Demographic and clinical characteristics indicate that patients with resistant hypertension are older than the general population of patients with arterial hypertension and more often suffer from comorbidities. ⋯ An important step in management of resistant hypertension is targeted screening with diagnostic tests for secondary hypertension. Expanding of the drug therapy beyond a 3‑drug regimen should include a mineralocorticoid receptor antagonist, in particular spironolactone. In selected patients, device‑based hypertension treatment might be considered.