Objective: To investigate the feasibility, safety and results of lapar
oscopic transperitoneal adrenalectomies performed with the patient sup
ine, in patients affected by secreting and silent adrenal lesions. Met
hods: Exclusion criteria were suspected adrenal primary malignancies.
Fifty patients (33 women and 17 men; mean age 49.6 years, range 19-75
years) underwent 51 laparoscopic adrenalectomies (one bilateral). Afte
r complete endocrinological evaluation, computed tomography or magneti
c resonance imaging, or a combination thereof, 14 non-secreting adenom
as, 13 aldosterune-producing adenomas, 13 cortisol-producing adenomas,
eight phaeochromocytomas (one bilateral), one androgen-secreting aden
oma, and two metastases were considered eligible for adrenalectomy. In
five patients, associated procedures were performed during surgery. R
esults: The lesions ranged in size from 1.5 to 10 cm. There were no in
traoperative complications and no blood transfusions were required. Th
e postoperative course was uneventful and painless in all patients. Me
an postoperative hospital stay was 2.5 days. In all hypertensive patie
nts, significant improvement or cure of hypertension was observed at f
ollow-up (mean 18 months). In patients with secreting adenomas, normal
ization of hormone concentrations was obtained after removal of the tu
mour. In six patients with incidentaloma, the exaggerated 17-hydroxypr
ogesterone response to ACTH disappeared after surgery. Conclusions: Se
creting and non-secreting adrenal lesions were treated safely by lapar
oscopy. Relatively small incidentalomas and subclinical hormonally act
ive tumours can be removed by laparoscopy. Early diagnosis enhances pr
evention and treatment.