[Behavior of the renin-angiotensin-aldosterone system and urinary kallikrein in patients with ascitic hepatic cirrhosis].
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Biomedical subjects
Publications and source records attributed to F Aguglia.
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The effect of captopril on intralymphocytic sodium concentration in hypertensive subjects was studied. After acute and chronic treatment the intralymphocytic sodium content decreased. The possibility is discussed that a similar decrease might also occur in smooth muscle cells, thus enhancing the hypotensive effect of captopril.
1 The long-term effects of the oral angiotensin-converting enzyme inhibitor captopril with the addition of a diuretic (chlorthalidone) were examined in 16 patients with moderate or grave hypertension. Of these, 14 had essential hypertension and two renovascular hypertension. 2 Blood pressure fell sharply in all patients and this antihypertensive effect was maintained during 2, 4, 6, 12, and 24-month follow-up periods. The efficacy of treatment was not predicted by basal values of plasma renin activity. 3 Urinary excretion of sodium and potassium increased, but the increases were never such as to modify significantly sodium and potassium serum concentration. 4 The long-term treatment was generally well tolerated.
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Thrombotic thrombocytopenic purpura (TTP) is a life-threatening multisystem disorder of unknown etiology, first described by Moschkowitz in 1924. TTP is a thrombotic microangiopathy characterized by microvascular lesions with platelet aggregation. TTP is more common in adults and is associated with pregnancy; diseases such as HIV, cancer, bacterial infection, and vasculitis; bone marrow transplantation; and drugs TTP is a hematologic emergency. It is a multisystem disease that can cause rapid deterioration of the patient's neurologic, renal, and hematologic status. TTP is an uncommon disease with a high fatality rate if untreated or misdiagnosed. Rapid diagnosis and aggressive treatment by therapeutic plasma exchange are necessary to reduce the risk of a fatal outcome. Current clinical criteria for initiating therapy are: thrombocytopenia, and absence of other disease entities that could explain the thrombocytopenia. Early recognition and management are essential for patient survival. TTP is difficult to diagnose because the patient's presentation can be nonspecific and the characteristic pentad of symptoms may not occur together. Other disease entities can have some of the same symptoms. We discuss a case report of Moschkowitz syndrome in Emergency Department.
AIM: Our research was based over the critical evaluation of the plasmatic concentration variation of B-type Natriuretic Peptide in emergency in patients with heart failure during therapy with diuretics, anti-aldosterone, ACE-inhibitors, beta-blockers and nitroderivates. MATERIALS AND METHOD: We selected 108 patients: 30 control subjects (average 58.40 +/- SD13.32 for 20 M, and 65 +/- SD 14.74 for 10 W), and 78 subjects (average 75.90 +/- SD 9.60 for 41 M, and 77.89 +/- SD 8.62 for 37 W) arrived to the emergency and reception department for dyspnea and/or precordialgia and/or palpitations with heart failure diagnosis according to NYHA Classification. The variation of BNP concentration was evaluated in these subjects at the admission, after 1 week, and 1 month from the beginning of the therapy. RESULTS: Patients with heart failure had a BNP concentration high during all measurements. The values were high during admission, but after 1 week and after 1 month, they reduced reaching the balance. CONCLUSIONS: BNP evaluation is a good indicator for the diagnosis of heart failure and for improving the therapy. The main limit of BNP diagnostic role is the need of knowing in advance the specific values for each patient.