Conventional surgery and radiotherapy for acromegaly have limitations. There are few data on the use of the somatostatin analog octreotide (Oct) as primary medical therapy. An open prospective study of 27 patients with newly diagnosed acromegaly was conducted in nine endocrine centers in the United Kingdom. Twenty patients had macroadenomas, and 7 had microadenomas. For the first 24 wk (phase 1), patients received sc Oct in an initial dose of 100 microg, 3 times daily, increased to 200 micro g three times daily after 4 wk in the 13 patients whose mean serum GH remained greater than 5 mU/liter (2 microg/liter). Five-point GH profiles were performed at 0, 4, 12, and 24 wk, and high resolution pituitary imaging using a standard protocol was performed at 0, 12, and 24 wk (magnetic resonance imaging in 25 patients and computed tomography in 2). Tumor dimensions and volumes were calculated by a central, reporting neuroradiologist, and the results were audited by a second, independent neuroradiologist. After 24 wk, 15 patients proceeded to phase 2 of the study with a direct switch to monthly injections of the depot formulation of Oct, Sandostatin long-acting release (Oct-LAR). Further GH profiles were performed at 36 and 48 wk, and pituitary imaging was performed at 48 wk. The median pretreatment serum GH concentration was 30.7 mU/liter (range, 6.7-141.4). During sc Oct, serum GH fell to less than 5 mU/liter in 9 patients (38%), and IGF-I fell to normal in 8 patients (33%). All 27 tumors shrank during sc Oct; for microadenomas the median tumor volume reduction was 49% (range, 12-73), and for macroadenomas it was 43% (range, 6-92). After 24 wk of Oct-LAR (end of phase 2), the GH level was less than 5 mU/liter in 11 of 14 patients (79%), and IGF-I was normal in 8 of 15 patients (53%). In the 15 patients given Oct-LAR (10 macroadenomas), wk 48 scans showed a further overall median tumor volume reduction of 24%. At the end of the study 79% of patients had mean serum GH levels below 5 mU/liter, 53% had normal IGF-I levels, and 73% showed greater than 30% tumor shrinkage. Twenty-nine percent of patients achieved all 3 targets, but no patient with pretreatment GH levels above 50 mU/liter did so at any stage of the study. Primary medical therapy with Oct offers the prospect of normalization of GH/IGF-I levels together with substantial tumor shrinkage in a significant subset of acromegalic patients. This is most likely to occur in patients with pretreatment GH levels less than 50 mU/liter (20 microg/liter).

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Transsphenoidal pituitary surgery is a safe method of treatment in patients with Cushing's disease. Operative findings, radiological and histological findings, together with early postoperative serum cortisol and urine free cortisol estimates may identify failures in treatment. Alternative treatment might then be required for these patients. Because of the risk of late relapse, patients require life-long follow-up.

BackgroundDevelopers, users and others have requested or advocated for guidance on how to plan for, and implement guidelines concurrent to their development given that existing resources are lacking such information. The purpose of this research was to develop a guideline implementation planning checklist.MethodsDocuments that described or evaluated the processes of planning or undertaking implementation were identified in several publications that had systematically identified such resources, and by searching medical literature databases (MEDLINE, EMBASE). Data that described implementation planning; how to develop guideline versions or tools that would support user implementation; and options and mechanisms for disseminating or implementing guidelines were independently extracted from eligible documents by the principal investigator and a trained research assistant. Data were integrated to create a unique list of guideline implementation planning processes and considerations.ResultsThirty-five documents were eligible. Of these, 16 (45.7%) provided sparse information on implementation planning, 25 (71.4%) mentioned different versions or tools for implementation, and 30 (85.7%) listed options for dissemination or implementation. None provided instructions for operationalizing implementation strategies. Data were integrated into a multi-item Guideline Implementation Planning Checklist including considerations for implementation planning (12), development of implementation tools (8), types of implementation tools (12), and options for dissemination (11) and implementation (12).ConclusionsDevelopers or users can apply the Guideline Implementation Planning Checklist to prepare for and/or undertake guideline implementation. Further development of the checklist is warranted to elaborate on all components. In ongoing research, we will consult with the international guideline community to do so. At the same time, guideline implementation is complex, so developers and users would benefit from training, and by including knowledge translation experts and brokers on implementation planning committees.Electronic supplementary materialThe online version of this article (doi:10.1186/s13012-015-0205-5) contains supplementary material, which is available to authorized users.

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