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Nonselective alpha blockers, such as phenoxybenzamine or phentolamine, can be used to mitigate this disease. Pheochromocytoma is a disease in which a catecholamine secreting tumor develops. [ 2 ] [ 20 ] Specifically, norepinephrine and epinephrine are secreted by these tumors, either continuously or intermittently. [ 21 ]
Treatment with 177 Lu-DOTATATE first demonstrated success in patients with undifferentiated neuroendocrine tumors and then trials began with metastatic pheochromocytoma patients. [ 159 ] [ 160 ] In 2019, Vyakaranam et al. published favourable results for their 22 patients who underwent PRRT, with partial response in 2 patients and stable ...
The primary application for phentolamine is for the control of hypertensive emergencies, most notably due to pheochromocytoma. [5]It also has usefulness in the treatment of cocaine-induced cardiovascular complications, where one would generally avoid β-blockers (e.g. metoprolol), as they can cause unopposed α-adrenergic mediated coronary vasoconstriction, worsening myocardial ischemia and ...
Its only current clinical use is in preparing patients with pheochromocytoma for surgery; its irreversible antagonism and the resultant depression in the maximum of the agonist dose-response curve are desirable in a situation where surgical manipulation of the tumour may release a large bolus of pressor amine into the circulation. Typically ...
Multiple endocrine neoplasia type 2 (also known as "Pheochromocytoma (codons 630 and 634) and amyloid producing medullary thyroid carcinoma", [1] "PTC syndrome," [1] and "Sipple syndrome" [1]) is a group of medical disorders associated with tumors of the endocrine system. The tumors may be benign or malignant .
For scale, cutting administrative costs to peer country levels would represent roughly one-third to half the gap. A 2009 study from Price Waterhouse Coopers estimated $210 billion in savings from unnecessary billing and administrative costs, a figure that would be considerably higher in 2015 dollars. [50] Cost variation across hospital regions.
Treatment of PC12 cells with dexamethasone differentiates them into chromaffin-like cells. Using patch clamp recording and amperometry , there was a significant increase in quantal size, excitability and coupling between calcium channels and vesicle release sites, increasing from ~2x10 −19 to ~6.5x10 −19 moles.
When the same type of tumor is found in the adrenal gland, they are referred to as a pheochromocytoma. They are rare tumors, with an overall estimated incidence of 1 in 300,000. [1] There is no test that determines benign from malignant tumors; long-term follow-up is therefore recommended for all individuals with paraganglioma. [2]