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Biomedical subjects

S Rescalli

Publications and source records attributed to S Rescalli.

8 recordsLinked to original sources

Color Doppler sonography in Graves' disease: value in assessing activity of disease and predicting outcome.

OBJECTIVE: The aims of the study were to establish the usefulness of color Doppler sonography in assessing changes in thyroid blood flow during the course of Graves' disease and to investigate which of several variables (thyroid volume, number of intraparenchymal vessels, and blood flow in the thyroid artery) were best related to thyroid hyperfunction and therefore could be used to evaluate the course of the disease. SUBJECTS AND METHODS: Fifty-six patients with Graves' disease were selected and divided on the basis of clinical and laboratory data into four groups: patients untreated at first diagnosis, patients undergoing antithyroid drug treatment, patients in remission after withdrawal of therapy, and patients having a relapse of hyperthyroidism. Ten healthy subjects served as controls. RESULTS: Patients with active hyperthyroidism (at first diagnosis, during treatment, or at relapse) had a significantly enlarged thyroid (p = .005); intrathyroid vascularization, evaluated as number of vessels per square centimeter (p < .0001); and blood flow in the thyroid artery (p < .0001) compared with control subjects and with patients in remission after withdrawal of therapy. During treatment, sonographic values were slightly lower but not significantly different from those registered in patients at the onset of hyperthyroidism, indicating that normalization of vascularity does not parallel the drug-induced decrease of hormonal synthesis. Among 21 patients in remission, the nine patients who had a relapse shortly after the examination had a higher number of vessels per square centimeter (2.18 +/- 0.34 versus 1.03 +/- 0.16, p = .03) and higher flow in the thyroid artery (80.3 +/- 19.1 versus 10.6 +/- 2.3 ml/min, p = .01) than did the other 12 patients who remained in stable remission, despite normal hormonal levels in both groups. CONCLUSION: Our results suggest that color Doppler sonography can be used to assess activity of Graves' disease and to predict the outcome of the disease after withdrawal of medical therapy.

Adult↗

Autoimmunity and thyroid function in patients with chronic active hepatitis treated with recombinant interferon alpha-2a.

The occurrence of thyroid abnormalities and the appearance of organ- and non-organ-specific autoantibodies during long-term recombinant interferon alpha-2a (IFN-alpha) therapy were studied in 86 and 51 consecutive outpatients with hepatitis C and B virus-related chronic active hepatitis (CAH-HCV and CAH-HBV), respectively. Most patients had longstanding community-acquired hepatitis. At baseline, 9.3% of CAH-HCV and 3.9% of CAH-HBV patients showed clinical and/or biochemical signs of thyroid dysfunction. The remaining patients were euthyroid, although anti-thyroid autoantibodies were found in 33/78 (42.3%) of CAH-HCV and in 5/49 (10.2%) of CAH-HBV patients. During IFN-alpha treatment, increased anti-thyroid autoantibody levels were seen in 40% of CAH-HCV initially negative patients, while they became detectable in no more than 10% of CAH-HBV patients. Interferon-alpha-induced hypo- or hyperthyroidism was recorded in 12 of 35 CAH-HCV patients treated for 12 months (34.3%). Only one CAH-HBV patient developed hyperthyroidism. High titers of anti-nuclear autoantibodies (ANA) were recorded at enrollment in 5/36 (13.8%) of CAH-HCV and in 3/16 (18.7%) of CAH-HBV patients. Only one CAH-HCV patient displayed anti-parietal cell antibodies (PCA). After IFN-alpha treatment, ANA were found in 10/28 (35.7%) and PCA in 2/28 (7.1%) of CAH-HCV patients, while an additional CAH-HBV patient developed PCA, but not ANA. However, no signs of systemic autoimmune disease were recorded.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗

[Color Doppler ultrasonography in the diagnosis of solid breast lesions].

The color-Doppler signals in 50 patients with breast lumps were assessed subjectively. Number and location of vessels within the masses were recorded and compared with histologic diagnosis and lesion size. All the malignancies were vascularized but only 16/37 of the benign ones showed vessels. All malignancies but one displayed > or = 2 vessels, which on the other hand occurred in only 4/16 vascularized benignancies. There was a relation between size of the lesion and number of the observed vessels, and color-Doppler proved more reliable in the differential diagnosis of breast masses when lesions less than 2 cm were considered.

Adolescent↗

Plasma steroid transport in subjects with tumors of hormonal target organs: a review.

Tumors derived from a hormonal target organ are assumed to be stimulated by the same hormone that stimulates the normal target tissue. In spite of attempts to acquire direct indications of a correlation between hormones and cancer, none have been definitive because studies of total and free hormone levels have given contradictory results. For this reason, attention has shifted to the study of plasma binding and transport of hormones, that is, of the proteins responsible for modulation of the hormone effect and thus of hormone bioavailability. The data reviewed indicate that in-depth study of the transport and binding system of sex steroids would give new information about the endocrine characteristics of cancer patients.

Breast Neoplasms↗

[Postoperative hyperkinetic arrhythmias treated with amiodarone].

Twenty eight patients have been treated; 8 patients had atrial fibrillation (FA) and 20 supraventricular paroxysmal (SVPT) tachycardia. Both diseases followed interventions of major surgery. No patient had myocardial ischemia and/or damaged conduction system, took any heart-related drug, or showed any risk factor. The posologic plans was as follows: a) bolus i.v. (three minutes) with 2 Amiodarone vials and electrocardiographic monitoring, then b) 10-20 mg/kg/day for three days with electrocardiographic monitoring. Within 5 days, all patients attained the total recovery from SVPT; AF regressed during the bolus injection in 1 patient, on the first day in 5 patients, and on the third day in the remaining 2 patients. During the hospitalization no important side effects occurred, except for transient hypotension in three subjects. The 6 months follow up did not reveal signs of intolerance, either. Amiodarone thus showed to be useful and well tolerated in the treatment of post-surgical hyperkinetic arrhythmias in patients undergoing major surgery.

Amiodarone↗

[Echographic evaluation of goiter recurrence].

Ultrasound is mandatory in the follow up of patients surgically treated for benign thyroid diseases. In this study the Authors have examined 87 patients who underwent different surgical treatments for goiter over 40 years. Ultrasound allowed a more accurate study of residual thyroid, particularly evaluating thyroid tissue morphology in symptomatic patients (43.6%) and detecting many recurrences in asymptomatic patients (37.3%). This study also confirms the advantage of a more extensive surgery to reduce recurrences without increasing complications.

Adult↗