Journal of endocrinological investigation
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J. Endocrinol. Invest. · Feb 2010
Comparative StudySalivary cortisol as an alternative for serum cortisol in the low-dose adrenocorticotropic hormone stimulation test?
Salivary cortisol is unaffected by cortisol binding globulin and reflects free serum cortisol as compared to total serum cortisol. ⋯ The salivary low-dose ACTH-test yields more dynamic responses than serum cortisol. However, the sensitivity and specificity of salivary cortisol are too low to be adequate as an alternative to the serum cortisol measurements. In women on estrogen therapy, however, the use of salivary cortisol might be superior to serum cortisol.
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J. Endocrinol. Invest. · Jan 2010
Prospective evaluation of tumor size and hormonal status in adrenal incidentalomas.
Because of the increased use of imaging interventions, more subjects have been diagnosed with adrenal incidentaloma in recent years. ⋯ In conclusion, we demonstrated that, despite being infrequent, adrenal tumors may increase in size, develop overt or subclinical hormone secretion or feature malignant transformation. Therefore, radiological and hormonal follow-up should be recommended to the patients. More investigations are needed for the establishment of long-term follow-up protocols.
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J. Endocrinol. Invest. · Mar 2009
Degree of catecholamine hypersecretion is the most important determinant of intra-operative hemodynamic outcomes in pheochromocytoma.
Pheochromocytoma resection is often complicated by intra-operative hypertension and post-resection hypotension. Factors associated with these hemodynamic alterations are not well defined. The aim of this study was to analyse the clinical-laboratory features associated with hemodynamic parameters during pheochromocytoma resection. ⋯ Pre-operative urinary vanylmandelic acid was positively associated with intra-operative maximum MABP (r=0.535, p=0.047) and with maximum transoperative systolic BP (r=0.805, p=0.016). Pre-operative urinary catecholamine (Pearson correlation r=0.575, p=0.03) and vanylmandelic acid (Pearson correlation r=0.605, p=0.04) levels were associated with maximum intra- operative MABP, adjusted for the presence of pheochromocytoma symptoms, surgical approach and pre-operative alpha-blockers. In conclusion, the degree of pre-operative catecholamine secretion was the most important aspect of transoperative BP control.