Elevated late-night salivary cortisol may indicate recurrent Cushing’s disease

Carroll TB, et al. Endocr Pract. 2016;doi:10.4158/EP161380.OR.

 

Elevated late-night salivary cortisol may serve as an early biochemical marker of recurrent Cushing’s disease, and prompt intervention may result in clinical benefits for people with Cushing’s disease, according to recent study findings.

According to the researchers, late-night salivary cortisol level is more sensitive for detecting Cushing’s disease recurrence compared with urinary free cortisol or a dexamethasone suppression test.

Ty B. Carroll, MD, assistant professor at the Medical College of Wisconsin Endocrinology Center and Clinics in Menomonee Falls, and colleagues evaluated 15 patients (14 women; mean age, 49.1 years) with postsurgical recurrent Cushing’s disease (mean time to recurrence, 3.3 years) after initial remission to determine the performance of urinary free cortisol and late-night salivary cortisol measurements for detecting recurrent Cushing’s disease.

Participants were identified as having Cushing’s disease between 2008 and 2013; there was no standard for follow-up, but after remission confirmation participants were followed at least every 6 months after surgery for 2 years and then annually thereafter. Late-night salivary cortisol was the primary biochemical test to screen for recurrence, and follow-up tests with a dexamethasone suppression test, urinary free cortisol or other tests were performed if late-night salivary results were abnormal or if suspicion of recurrence was high.

Of the cohort, 80% had normal urinary free cortisol (< 45 µg/24 hours) at recurrence. Primary transphenoidal adenoma resection was performed in all participants. Evidence of pituitary adenoma on MRI at the time of recurrence was present in seven of 12 participants with normal urinary free cortisol and two of three participants with abnormal urinary free cortisol. Normal renal function was present in all participants, and 14 underwent testing with late-night salivary cortisol, dexamethasone suppression test and urinary free cortisol.

Of participants with normal urinary free cortisol at recurrence, nine had an abnormal dexamethasone suppression test (cortisol 1.8 µg/dL), and all had at least one elevated late-night salivary cortisol measurement (> 4.3 nmol/L). Mean late-night salivary cortisol was 10.2 nmol/L, and mean urinary free cortisol was 19.9 µg/24 hours.

Therapy for recurrent Cushing’s disease was administered in 11 of the 12 participants with abnormal urinary free cortisol. Adrenocorticotropic hormone (ACTH)-staining pituitary adenoma was confirmed in three participants who underwent repeat transphenoidal adenoma resection. Pharmacotherapy was administered to seven participants with normal urinary free cortisol, and two additional participants underwent bilateral adrenalectomy.

Abnormal dexamethasone suppression test was found in two participants with elevated urinary free cortisol at the time of recurrence, and two participants had confirmed abnormal late-night salivary cortisol. All three participants with elevated urinary free cortisol at the time of recurrence underwent therapy.

“This study has shown potential clinical benefit of either surgical or medical therapy in recurrent [Cushing’s disease] patients with elevations of [late-night salivary cortisol] and normal [urinary free cortisol],” the researchers wrote. “We believe that the outcomes observed in this retrospective case series suggest that the risk/benefit ratio of early treatment needs to undergo a more rigorous prospective evaluation utilizing [late-night salivary cortisol] elevation as an early biochemical marker of recurrent [Cushing’s disease].” – by Amber Cox

Disclosure: Carroll reports being a consultant for Corcept Therapeutics. Please see the full study for a list of all other authors’ relevant financial disclosures.

From http://www.healio.com/endocrinology/adrenal/news/online/%7B9ea4e4ed-6428-49b8-9b2a-11462cb21349%7D/elevated-late-night-salivary-cortisol-may-indicate-recurrent-cushings-disease

Addison’s Disease vs Cushing’s Syndrome Nursing

Cushing’s and Addison’s Disease. An endocrine NCLEX review on how to differentiate between Cushing’s Syndrome/Disease vs Addison’s and Addisonian Crisis. In this video, I will discuss the pathophysiology, signs & symptoms, and nursing interventions for these endocrine disorders of the adrenal cortex and pituitary glands.

 

Addison’s Disease and Cushing’s Syndrome/Disease review notes for nursing school and NCLEX exam. In nursing school and for the NCLEX exam, you will need to know how to provide care to a patient with either Addison’s Disease or Cushing’s.

However, many students get these two endocrine disorders confused, but these review notes will help you differentiate between them.

These NCLEX review notes will cover:

  • Signs and Symptoms of Addison’s Disease vs Cushing’s
  • Causes of Addison’s Disease and Cushing’s
  • Nursing Management of Addison’s Disease and Cushing’s

After reviewing these notes, don’t forget to take the Addison’s Disease vs Cushing’s Quiz.

Addison’s Disease vs Cushing’s

Major Players in these endocrine disorders:

  • Adrenal Cortex
  • Steroid Hormones
    • Corticosteroids (specifically Aldosterone (mineralocorticoid) & Cortisol (glucocorticoid)

Role of Adrenal Cortex: releases steroid hormones and sex hormones

Role of Aldosterone: regulates blood pressure through renin-angiotensin-aldosterone system, helps retain sodium and secretes potassium (balances sodium and potassium levels).

Role of Cortisol: “STRESS Hormone” helps the body deal with stress such as illness or injury, increases blood glucose though glucose metabolism, break downs fats, proteins, and carbs, regulates electrolytes.

Cushing’s (Syndrome & Disease)

Cushing’s: hyper-secretion of CORTISOL (watch video for clever ways to remember this)

Cushing’s Syndrome vs Cushing’s Disease

Cushing’s Syndrome: caused by an outside cause or medical treatment such as glucocorticoid therapy

Cushing’s Disease: caused from an inside source due to the pituitary gland producing too much ACTH (Adrenocorticotropic hormone) which causes the adrenal cortex to release too much cortisol.

Signs & Symptoms of Cushing’s

Remember the mnemonic: “STRESSED” (remember there is too much of the STRESS hormone CORTISOL)

Skin fragile

Truncal obesity with small arms

Rounded face (appears like moon), Reproductive issues amennorhea and ED in male(due to adrenal cortex’s role in secreting sex hormones)

Ecchymosis, Elevated blood pressure

Striae on the extremities and abdomen (Purplish)

Sugar extremely high (hyperglycemia)

Excessive body hair especially in women…and Hirsutism (women starting to have male characteristics), Electrolytes imbalance: hypokalemia

Dorsocervical fat pad (Buffalo hump), Depression

Causes of Cushing’s

  • Glucocorticoid drug therapy ex: Prednisone
  • Body causing it: due to tumors and cancer on the *pituitary glands or adrenal cortex, or genetic predisposition

Nursing Management for Cushing’s Syndrome

  • Prep patient for Hypophysectomy to remove the pituitary tumor
  • Prep patient for Adrenalectomy:
    • If this is done educate pt about cortisol replacement therapy after surgery
  • Risk for infection and skin breakdown
  • Monitor electrolytes blood sugar, potassium, sodium, and calcium levels

Addison’s Disease

Addison’s: Hyposecretion of Aldosterone & Cortisol (watch the video for a clever way on how to remember this and not get it confused with Cushing’s)

Signs & Symptoms of Addison’s Disease

Remember the phrase: “Low STEROID Hormones” (remember you have low production of aldosterone & cortisol which are STEROID hormones)

Sodium & Sugar low (due to low levels of cortisol which is responsible for retention sodium and increases blood glucose), Salt cravings

Tired and muscle weakness

Electrolyte imbalance of high Potassium and high Calcium

Reproductive changes…irregular menstrual cycle and ED in men

lOw blood pressure (at risk for vascular collapse)….aldosterone plays a role in regulating BP

Increased pigmentation of the skin (hyperpigmentation of the skin)

Diarrhea and nausea, Depression

Causes of Addison’s Disease

  • Autoimmune due to the adrenal cortex becoming damaged due to the body attacking itself:
    • Tuberculosis/infections
    • Cancer
    • Hemorrhaging of the adrenal cortex due to a trauma

Nursing Management of Addison’s Disease

  • Watching glucose and K+ level
  • Administer medications to replace the low hormone levels of cortisol and aldosterone
  • For replacing cortisol:
    • ex: Prednisone, Hydrocortisone
      • Education: Patient needs to report if they are having stress such as illness, surgery, or extra stress in life ( will need to increase dosage), take medication exactly as prescribed….don’t stop abruptly without consulting with MD.
  • For replacing aldosterone:
    • ex: Fludrocortisone aka Florinef
      • Education: consume enough salt..may need extra salt
  • Wearing a medical alert bracelet
  • Eat diet high in proteins and carbs, and make sure to consume enough sodium
  • Avoid illnesses, stress, strenuous exercise

Watch for Addisonian Crisis

This develops when Addison’s Disease isn’t treated.

In addisonian crisis, the patient has extremely LOW CORTISOL levels (life threatening).

Remember the 5 S’s

  1. Sudden pain in stomach, back, and legs
  2. Syncope (going unconscious)
  3. Shock
  4. Super low blood pressure
  5. Severe vomiting, diarrhea and headache
  • NEED IV Cortisol STAT:
    • Solu-Cortef and IV fluids (D5NS to keep blood sugar and sodium levels good and fluid status)
  • Watch for risk for infection, neuro status (confusion, agitation), electrolyte levels (sodium and potassium, glucose)

Addison’s vs Cushing’s Quiz

 

From http://www.registerednursern.com/addisons-disease-vs-cushings-review-notes-for-nclex/

A Single-Center 10-Year Experience with Pasireotide in Cushing’s Disease: Patients’ Characteristics and Outcome

Pasireotide is the first pituitary-directed drug approved for treating patients with Cushing’s disease (CD). Our 10-year experience with pasireotide in CD is reported here.

Twenty patients with de novo, persistent, or recurrent CD after pituitary surgery were treated with pasireotide from December 2003 to December 2014. Twelve patients were treated with pasireotide in randomized trials and 8 patients with pasireotide sc (Signifor®; Novartis AG, Basel, Switzerland) in clinical practice. The mean treatment duration was 20.5 months (median 9 months; range, 3-72 months).

Urinary free cortisol (UFC) levels mean percentage change (± SD) at last follow-up was-40.4% (± 35.1; range, 2-92%; median reduction 33.3%) with a normalization rate of 50% (10/20). Ten patients achieved sustained normalized late night salivary cortisol (LNSC) levels during treatment. LNSC normalization was associated with UFC normalization in 7/10 patients. Serum cortisol and plasma ACTH significantly decreased from baseline to last follow-up. Body weight decrease and blood pressure improvement during pasireotide treatment were independent from UFC response. Glucose profile worsening was observed in all patients except one. The frequency of diabetes mellitus increased from 40% (8/20) at baseline to 85% (17/20) at last follow-up requiring initiation of medical treatment only in 44% of patients.

Pasireotide treatment was associated with sustained biochemical and clinical benefit in about 60% of CD patients. Glucose profile alteration is a frequent complication of pasireotide treatment; however, it seems to be easy to manage with diet and lifestyle intervention in almost half of the patients.

From http://www.ncbi.nlm.nih.gov/pubmed/27127913

Straight Talk Cushing’s

awareness

 

On April 8th, people from around the world unite in support of Cushing’s Disease Awareness Day.

In this animated video, learn more about Cushing’s disease, including the mechanism of disease, clinical manifestations, symptoms and diagnosis challenges.

VIDEO: Cushing’s syndrome still difficult to diagnose

endo2016

 

In this video exclusive, Hershel Raff, PhD, professor of medicine, surgery and physiology at the Medical College of Wisconsin and scientific director and clinical research supervisor at Aurora St. Luke’s Medical Center, discusses his presentation on the laboratory diagnosis of Cushing’s syndrome.

According to Raff, Cushing’s syndrome is the most enigmatic disease in endocrinology and one of the most difficult to diagnose.

The use of late-night salivary cortisol for diagnosis has recently become popular although the test has been around for many decades. Patients can send samples by mail to have their cortisol measured in a laboratory to determine whether they have Cushing’s. According to Raff, the test is about 95% accurate in making a diagnosis.

View video at http://www.healio.com/endocrinology/adrenal/news/online/%7B5545e9a6-7475-454a-94d5-3994ac8beec5%7D/video-cushings-syndrome-still-difficult-to-diagnose