Pituitary metastasis: a clinical overview.

The pituitary gland is an unusual site for metastatic spread and has been associated with a poor prognosis. Clinical presentation is variable but can include visual field defects, cranial nerve palsies, anterior pituitary dysfunction and/ or diabetes insipidus. Management options include surgery or radiotherapy, chemotherapy/immunotherapy or a conservative approach. The pituitary should not be overlooked as a site for metastasis in patients with known cancer and can be the first presentation of neoplastic disease in some patients. Given that patients are now living longer with cancer, clinicians should be alert to the varied presentation of pituitary metastasis. We provide a clinical overview of pituitary metastasis with the aid of illustrative clinical cases.

A Survey of Patient's Perceptions and Proposed Provision of a 'Patient Portal' in Endocrine Outpatients.

INTRODUCTION: Patient portals are online electronic medical record applications that allow patients greater control of their own health and encourage meaningful interaction with their healthcare providers. The uptake of this technology is commonplace throughout developed healthcare economies and is on the Northern Ireland Electronic Healthcare Record (NIECR) roadmap. AIM: To assess patients' perceptions and proposed provision of a patient portal in endocrinology outpatients. METHODS: Patients (n=75) attending three endocrinology outpatient clinics were eligible to participate. After discussion at clinic, invited patients were contacted via e-mail to complete a confidential and anonymised online survey. There were a total of 23 questions in the survey which included a mix of free text and categorical responses. The survey duration was conducted over a 6-month period. RESULTS: The survey response rate was 51/75 (68%), M33:F18. 46/51 (90%) had access to smart phones, 45/51 (88%) used the internet daily. 31/51 (60%) of respondents were aged between 18-45, 20/51 (40%) were aged ≥ 45 years. 50/51 (98%) reported they would use the technology if available. 47/51 (92%) felt engaging with a patient portal would enhance communication with their doctor and improve understanding of their medical issues. Reported perceived applications of use included; remote access and advice for test results and medical questions, arranging appointments, requesting prescriptions and health promotion. 90% of respondents said they would be content to access results even if abnormal. Possible barriers to adoption of this technology included data protection and understanding medical terminology. CONCLUSIONS: The overall response to the provision of this technology was positive, although concerns regarding data protection remain prevalent. Perceived benefits included enhanced doctor-patient communication, optimizing workflow and improving patient engagement.

Modulation by progestogens of the effects of oestrogen on hepatic endocrine function in postmenopausal women.

OBJECTIVE: Oral but not transdermal oestrogen administration reduces IGF-I, and increases GH binding protein (GHBP) reflecting effects on hepatic endocrine function in postmenopausal women. As progestogens attenuate the effects of oestrogen on circulating lipid levels according to their androgenic properties, we have investigated the impact of progestogen types on the hepatic endocrine effects of oestrogen. DESIGN: Four progestogens differing in androgenicity were co-administered in a monthly cyclical regimen in random order to postmenopausal women receiving either oral (n = 9, premarin 1.25 mg) or transdermal (n = 10, Estraderm 100 microg patches twice weekly). The four progestogens were cyproterone acetate (CA 5 mg, antiandrogenic), dydrogesterone (20 mg, neutral), medroxyprogesterone acetate (MPA 10 mg, mildly androgenic), norethisterone (2.5 mg, androgenic). PATIENTS: Nineteen postmenopausal women (age 57 +/- 3 years, mean +/- SE) were studied. MEASUREMENTS: The effects of oestrogen alone and the combined effects with each progestogen type on IGF-I, GHBP, SHBG, cholesterol, triglycerides and lipoprotein(a) were investigated. RESULTS: Mean IGF-I fell while GHBP and SHBG levels increased with oral (P < 0.01) but not transdermal oestrogen administration. When the combined effects were examined, progestogens did not affect IGF-I, GHBP and SHBG during oral oestrogen treatment, while they significantly increased (P < 0.01) mean IGF-I levels during transdermal therapy. Among the progestogen types, only norethisterone prevented the fall in IGF-I induced by oral oestrogen. During transdermal therapy, MPA and norethisterone but not CA or dydrogesterone significantly increased (P < 0.005) IGF-I. The rise in GHBP induced by oral oestrogens tended to be lower during co-administration of MPA and norethisterone. The increase in SHBG induced by oral oestrogen was attenuated (P < 0.05) by norethisterone which was the only progestogen that lowered SHBG (P < 0.05) during transdermal oestrogen treatment. Mean IGF-I was higher (P < 0.001), GHBP and SHBG lower during co-administration of androgenic progestogens (MPA and norethisterone). CONCLUSIONS: Oestrogen effects on IGF-I, GHBP and SHBG are dependent on the route of administration with progestogens having variable effects. Among the progestogen types, norethisterone, the most androgenic, had the greatest effect, particularly on IGF-I. Progestogens modulate the effects of oestrogen on hepatic endocrine function in relation to their intrinsic androgenic properties. The modulatory effects of progestogens on IGF-I during oestrogen therapy may have long-term implications for lean body mass.