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Results for “ADRENAL GLAND DISEASES”

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At least 793 records · Page 44Linked to original sources
PubMed1998

Impaired pressor sensitivity to noradrenaline in septic shock patients with and without impaired adrenal function reserve.

AIMS: To investigate the relationship between adrenal gland function and pressor response to noradrenaline in septic shock. METHODS: Basal cortisol level, noradrenaline--mean arterial pressure dose-response curve and cortisol response to intravenous corticotrophin bolus were obtained in nine patients fulfilling usual criteria for septic shock and in six normal volunteers. In patients with septic shock, dose-response curve to noradrenaline was determined a second time 60 min after a 50 mg intravenous hydrocortisone bolus. RESULTS: As compared with controls, patients with septic shock had increased basal cortisol levels (mean+/-s.d.: 1564+/-818 vs 378+/-104 nmol l(-1) , P=0.002, 95% confidence interval for difference in means: [452, 1920]) and a blunted cortisol response to corticotrophin (403+/-461 vs 1132+/-195 nmol l(-1), P=0.008, [-1163, -2951). Five patients had impaired adrenal function reserve. As compared with controls, septic patients displayed a moderate and non significant decrease in pressor sensitivity to noradrenaline (P=0.112). As compared with patients with adequate adrenal response, patients with impaired adrenal function reserve showed a significant decrease in pressor sensitivity to noradrenaline (P=0.038). In septic patients, hydrocortisone improved pressor response to noradrenaline (P=0.032). This effect was more marked in patients with impaired adrenal function reserve so that, as compared with patients with adequate response, the difference was no longer significant (P=0.123). CONCLUSIONS: In septic shock, impaired adrenal function reserve may partly be accounted for by the depressed pressor sensitivity to noradrenaline. The latter may be substantially improved by physiological doses of hydrocortisone.

Adrenal Gland Diseases↗
PubMed2000

Novel mutations of the ACTH receptor gene in a female adult patient with adrenal unresponsiveness to ACTH.

We report a 30-year-old female with adrenal unresponsiveness to ACTH. Her clinical features included no adrenal crisis despite poor drug compliance, poor pubic hair development (Tanner stage 2), well-developed breasts (Tanner stage 5), and regular menstrual cycles. Endocrinological data included blood ACTH 1500 pmol/l, cortisol 18 nmol/l, dehydroepiandrosterone sulphate below 0.26 micromol/l, activated renin 0.37 pmol/l, and aldosterone 3.4 nmol/l. Direct sequencing and allele-specific amplification revealed two novel mutations in the ACTH receptor gene. One was transition from guanine to adenine at nucleotide position 1002, resulting in substitution of aspartate for asparagine at codon 103, and the other was transition from cytosine to thymine at nucleotide 1104, leading to substitution of arginine for tryptophan at codon 137. The present findings lend additional credence to the notions that adrenal androgens play an important role in female pubic hair development and that ovarian development takes place independently of adrenarche.

Adrenal Gland Diseases↗
PubMed1996

Bilateral isolated adrenal coccidioidomycosis.

A case of bilateral isolated adrenal coccidioidomycosis in a previously healthy and immunocompetent 43-year-old Caucasian male is presented. He had never travelled to a coccidioidomycosis endemic area. Subclinical adrenal dysfunction was found with elevated plasma ACTH and mineralocorticosteroid and androgen pathway abnormalities. The implement of the fungal infection on adrenal function, and the diagnosis and management of adrenal coccidioidomycosis are discussed.

Adrenal Gland Diseases↗
PubMed2000

Adrenal imaging.

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Adrenal Gland Diseases↗
PubMed2000

Adrenal masses in the newborn.

The incidence of neonatal adrenal tumors is increasing due to the expanded use and accuracy of prenatal ultrasonography in routine obstetric care. Although adrenal and juxtarenal masses may represent benign lesions (adrenal hemorrhage, subdiapragmatic extralobar pulmonary sequestration), the majority of masses either are premalignant or malignant. Previous algorithms for the diagnosis and management of these lesions have been guided primarily by the high incidence of neuroblastomas within this group. Improved insight into the relatively benign behavior of many neonatal neuroblastomas has stimulated debate regarding the appropriate management schema for neonatal adrenal masses. Moreover, the increasing recognition of benign juxtarenal lesions further challenges the conventional dogma. This review discusses the major categories of adrenal masses to help generate a rational algorithm for diagnosis and therapy.

Adrenal Cortex Neoplasms↗
PubMed1976

[Supra-renal venography in patients with suspected endocrine hypertension (author's transl)].

In forty patients suspected clinically of having an endocrine cause for hypertension, an adrenal cortical adenoma was confirmed histologically in five. Hyperaldosteronism with enlarged or normal adrenals was demonstrated in three patients. The diagnosis in a further eight patients with an abnormal hormone pattern and/or an abnormal venogram has not yet been confirmed. Adrenal glands show considerable variation in their size, shape and localisation on venography.

Adenoma↗
PubMed1978

[Sonography and phlebography in the investigation of the suprarenals (author's transl)].

Twelve patients were examined by sonography and phlebography; of these, ten had suprarenal tumours and two suprarenal hyperplasia. The value of sonography and its place compared with radiological examinations is discussed. Sonography is an informative method of screening and should be employed whenever there is clinical suspicion of enlargement of the suprarenals before other radiological methods are used.

Adolescent↗
PubMed1997

[The differentiation of adrenal gland tumors: an improvement in accuracy by a combination of fat-sensitive, T2-weighted and contrast-enhanced MR sequences].

PURPOSE: To determine the diagnostic value of 3 MR sequences for the diagnosis of adrenal tumors. MATERIAL AND METHODS: Retrospective analysis of 32 adrenal tumors (10 malignant, 15 adenomas, 5 inflammatory, 2 phaeochromocytomas) examined by MRT (1.5 T) using T2 turbo spin echo, chemical shift imaging and dynamic contrast-enhanced gradient echo sequences. RESULTS: Differentiation between malignant and benign adrenal tumours by means of T2-weighted sequences, chemical shift imaging and dynamic contrast-enhanced sequences achieved a sensitivity/specificity of 90%/73%, 100%/68% and 90%86%. Accuracy was 78%, 78% and 87%. By combining the three procedures, sensitivity/specificity/accuracy was improved to 100%/91%/94%. CONCLUSION: To differentiate adrenal lesions, the following procedures are recommended: demonstration of fat by chemical shift imaging is indicative of an adenoma. In the absence of any lipid content, T2-weighted and dynamic contrast-enhanced sequences can demonstrate inflammatory lesions.

Adenoma↗
PubMedDate not supplied

[Adrenal hemorrhage in the newborn infant].

Three cases of adrenal hemorrhage requiring surgery are reported in newborn infants. In one case surgery was necessary because of massive retroperitoneal bleeding and in two other cases adrenal neoplasms had been suspected preoperatively. Diagnosis, differential-diagnosis and indication for surgical intervention will be discussed for adrenal hemorrhage in the neonatal period.

Adrenal Gland Diseases↗
PubMed1988

[Surgery of the juvenile adrenal glands. Surgical protocol, intra- and perioperative monitoring].

Surgical and non-surgical conditions of the adrenal cortex and medulla are presented. Besides general principles of operative treatment (e.g. surgical approach, safe operative technique, bilateral exploration) specific aspects associated with this procedure in childhood are discussed. The perioperative management and pharmacotherapeutical preparation (e.g. hormonal substitution) are emphasized.

Adrenal Gland Diseases↗