Looking at your Doctor’s Notes?

The anterior pituitary is the anterior, glandu...

The anterior pituitary is the anterior, glandular lobe of the pituitary gland. (Photo credit: Wikipedia)

Acronyms or abbreviations for “Pituitary”

PIT: pituitary
P: Pituitary
PI: pituitary
PT: pituitary
PG: pituitary gland
PIT: pituitary gland
PS: pituitary stalk
NP: normal pituitary
PT: pituitary tumors
PV: pituitary venous
SP: sellar pituitary
PA: pituitary-adrenal
PA: pituitary adenoma
PEX: Pituitary Extract
ap: anterior pituitary
PA: pituitary adenomas
PA: pituitary apoplexy
PAs: pituitary adenomas
PP: posterior pituitary
oPRL: ovine pituitary PRL
phTSH: pituitary human TSH
Pitx1: pituitary homeobox 1
Ptx1: pituitary homeobox 1
BPG: brain-pituitary-gonad
HP: hypothalamo-pituitary
H-P: hypothalamic-pituitary
HP: hypothalamic-pituitary
HP: hypothalamus/pituitary
PAA: pituitary-adrenal axis
A.P.L.: anterior pituitary like
AP: anterior pituitary lobe
pgh: pituitary growth hormone
AP: anterior pituitary gland
APG: anterior pituitary gland
BPE: bovine pituitary extract
EPE: equine pituitary extract
PA: pituitary-adrenocortical
PP: posterior pituitary lobe
AP: Anterior pituitary glands

Approach to testing growth hormone (GH) secretion in obese subjects.

Source

Faculty of Medicine, University of Belgrade, Department of Neuroendocrinology, Clinical Center Serbia, Dr Subotic 13, 11000 Belgrade, Serbia. popver@eunet.rs

Abstract

Identification of adults with GH deficiency (GHD) is challenging because clinical features of adult GHD are not distinctive and because clinical suspicion must be confirmed by biochemical tests.

Adults are selected for testing for adult GHD if they have a high pretest probability of GHD, ie, if they have hypothalamic-pituitary disease, if they have received cranial irradiation or central nervous system tumor treatment, or if they survived traumatic brain injury or subarachnoid hemorrhage.

Testing should only be carried out if a decision has already been made that if deficiency is found it will be treated. There are many pharmacological GH stimulation tests for the diagnosis of GHD; however, none fulfill the requirements for an ideal test having high discriminatory power; being reproducible, safe, convenient, and economical; and not being dependent on confounding factors such as age, gender, nutritional status, and in particular obesity.

In obesity, GH secretion is reduced, GH clearance is enhanced, and stimulated GH secretion is reduced, causing a false-positive result. This functional hyposomatotropism in obesity is fully reversed by weight loss. In conclusion, GH stimulation tests should be avoided in obese subjects with very low pretest probability.

PMID:
23650336
[PubMed – in process]

J Clin Endocrinol Metab. 2013 May;98(5):1789-96. doi: 10.1210/jc.2013-1099.

From http://www.ncbi.nlm.nih.gov/pubmed/23650336

Cushing’s Syndrome is Hazardous to Your Health

morbidity

People with Cushing’s syndrome, even when treated, have higher morbidity and mortality rates that comparable controls. That is the conclusion of a new study published in the June issue of the Journal of Clinical Endocrinology Metabolism. The study by Olaf Dekkers et al, examined data records from the Danish National Registry of Patients and the Danish Civil Registration System of 343 patients with benign Cushing’s syndrome of adrenal or pituitary origin (i.e., Cushing’s disease) and a matched population comparison cohort (n=34,300).  Due to the lengthy delay of many patients being diagnosed with Cushing’s syndrome, morbidity was investigated in the 3 years before diagnosis while  morbidity and mortality were assessed during complete follow-up after diagnosis and treatment.

The study found that mortality was twice as high in Cushing’s syndrome patients (HR 2.3, 95% CI 1.8-2.9) compared with controls over a mean follow-up period of 12.1 years. Furthermore, patients with Cushing’s syndrome were at increased risk for:

  • venous thromboembolism (HR 2.6, 95% CI 1.5-4.7)
  • myocardial infarction (HR 3.7, 95% CI 2.4-5.5)
  • stroke (HR 2.0, 95% CI 1.3-3.2)
  • peptic ulcers (HR 2.0, 95% CI 1.1-3.6)
  • fractures (HR 1.4, 95% CI 1.0-1.9)
  • infections (HR 4.9, 95% CI 3.7-6.4).

The study also found that this increased multimorbidity risk was present before diagnosis indicating that it was due to cortisol overproduction rather than treatment.

Many of the Cushing’s syndrome patients underwent surgery to remove the benign tumor. For this group, the investigators performed a sensitivity analysis of the  long-term mortality and cardiovascular risk in this  subgroup (n=186)  considered to be cured after operation (adrenal surgery and patients with pituitary surgery in combination with a diagnosis of hypopituitarism in the first 6 months after operation).  The risk estimates for mortality (HR 2.31, 95% CI 1.62-3.28), venous thromboembolism (HR 2.03, 95% CI 0.75-5.48), stroke (HR 1.91, 95% CI 0.90-4.05), and acute myocardial infarction (HR 4.38, 95% CI 2.31-8.28) were also increased in this subgroup one year after the operation.

The standard treatment for endogenous Cushing’s syndrome is surgery. This past year, Signifor (pasireotide) was approved for treatment of adults patients with Cushing’s disease for whom pituitary surgery is not an option or has not been curative.  Cushing’s disease, which accounts for the majority of Cushing’s syndrome patients, is defined as the presence of an ACTH producing tumor on the pituitary grand. In the study by Dekker’s et al, the percentage of patients with Cushing’s disease is not known. We look forward to reexamination of this dataset in a few years following the introduction of more treatment options for Cushing’s disease as well as an analysis that explores the differences in mortality/morbidity rates in the different subsets of patients that make of Cushing’s syndrome (Cushing’s disease, ectopic Cushing’s syndrome, Exogenous Cyshing’s syndrome).

References

Dekkers OM, Horvath-Pujo, Jorgensen JOL, et al, Multisystem morbidity and mortality in Cushing’s syndrome: a cohort study. J Clin Endocrinol Metab 2013 98(6): 2277–2284. doi: 10.1210/jc.2012-3582

– See more at: http://www.raredr.com/medicine/articles/cushing%E2%80%99s-syndrome-hazardous-your-health-0

Aggressive pituitary tumors

In this lecture from Clínica Medellín an overview of aggressive pituitary tumores is presented.

Cushing Disease: A Multidisciplinary Treatment Update

Share this info with your endo in case he/she missed it!

This activity is intended for endocrinologists, primary care physicians, nurses, nurse practitioners, and pharmacists.

The goal of this activity is to review the diagnosis and treatment of Cushing disease from a multidisciplinary perspective.

Upon completion of this activity, participants will be able to:

  1. Outline the rationale for a multidisciplinary approach to the diagnosis and treatment of patients with Cushing disease
  2. Review the safety and efficacy of current management strategies for patients with Cushing disease
  3. Describe the diagnostic workup for Cushing disease and the reasons why timely diagnosis and treatment are important

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Medscape, LLC, encourages Authors to identify investigational products or off-label uses of products regulated by the US Food and Drug Administration, at first mention and where appropriate in the content.

Laurence Katznelson, MD

Professor of Medicine and Neurosurgery, Stanford University; Medical Director, Pituitary Center, Stanford Hospital and Clinics, Stanford, California

Disclosure: Laurence Katznelson, MD, has disclosed the following relevant financial relationships:
Received grants for clinical research from: Corcept Therapeutics Inc.; Novartis Pharmaceuticals Corporation

Dr Katznelson does not intend to discuss off-label uses of drugs, mechanical devices, biologics, or diagnostics approved by the FDA for use in the United States.

Dr Katznelson does not intend to discuss investigational drugs, mechanical devices, biologics, or diagnostics not approved by the FDA for use in the United States.

Brooke Swearingen, MD

Associate Professor of Neurosurgery, Harvard Medical School; Associate Visiting Neurosurgeon, Massachusetts General Hospital, Boston, Massachusetts

Disclosure: Brooke Swearingen, MD, has disclosed the following relevant financial relationships: Served as an advisor or consultant for: Novartis Pharmaceuticals Corporation
Owns stock, stock options or bonds from: Novartis Pharmaceuticals Corporation; Pfizer Inc; Amgen Inc; Roche

Dr Swearingen does not intend to discuss off-label uses of drugs, mechanical devices, biologics, or diagnostics approved by the FDA for use in the United States.

Dr Swearingen does not intend to discuss investigational drugs, mechanical devices, biologics, or diagnostics not approved by the FDA for use in the United States.

Nicholas Tritos, MD

Assistant Professor of Medicine, Harvard Medical School; Staff, Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts

Disclosure: Nicholas Tritos, MD, has disclosed the following relevant financial relationships:
Served as an advisor or consultant for: Corcept Therapeutics Inc; Pfizer Inc
Received grants for clinical research from: Pfizer Inc; Ipsen

Dr Tritos does intend to discuss off-label uses of drugs, mechanical devices, biologics, or diagnostics approved by the FDA for use in the United States.

Dr Tritos does not intend to discuss investigational drugs, mechanical devices, biologics, or diagnostics not approved by the FDA for use in the United States.

Susan Cornell, PharmD, CDE

Associate Professor, Pharmacy Practice, Midwestern University-Chicago, Downers Grove, Illinois; Clinical Pharmacist/Certified Diabetes Educator, DuPage Community Clinic, Wheaton, Illinois

Disclosure: Susan Cornell, PharmD, CDE, has disclosed the following relevant relationships:
Served as a speaker or member of a speakers bureau for: Johnson & Johnson Diabetes Institute

Dr Cornell does intend to discuss off-label uses of drugs, mechanical devices, biologics, or diagnostics approved by the FDA for use in the United States.

Dr Cornell does not intend to discuss investigational drugs, mechanical devices, biologics, or diagnostics not approved by the FDA for use in the United States.

Rita Pach, RN, MSN

Nurse, Johns Hopkins Pituitary Center, Baltimore, Maryland

Participation by Mrs Pach in the development of this product does not constitute or imply endorsement by the Johns Hopkins University or the Johns Hopkins Hospital and Health System.
Disclosure: Rita Pach, RN, has disclosed no relevant financial relationships.

Mrs Pach does not intend to discuss off-label uses of drugs, mechanical devices, biologics, or diagnostics approved by the FDA for use in the United States.

Mrs Pach does not intend to discuss investigational drugs, mechanical devices, biologics, or diagnostics not approved by the FDA for use in the United States.

Kristin M. Richardson

Group Scientific Director, Medscape, LLC

Disclosure: Kristin M. Richardson has disclosed no relevant financial relationships.

David Modrak, PhD

Freelance editor, Montville, New Jersey

Disclosure: David Modrak, PhD, has disclosed no relevant financial relationships.

Nafeez Zawahir, MD

CME Clinical Director, Medscape, LLC

Disclosure: Nafeez Zawahir, MD, has disclosed no relevant financial relationships.

Laurie E. Scudder, DNP, NP

Nurse Planner, Continuing Professional Education Department, Medscape, LLC; Clinical Assistant Professor, School of Nursing and Allied Health, George Washington University, Washington, DC

Disclosure: Laurie E. Scudder, DNP, NP, has disclosed no relevant financial relationships.

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Continue to activity: http://www.medscape.org/viewarticle/806559