BLA Instead of Second Pituitary Surgery

Posted on July 31, 2015 by MaryO

One of the problems that can arise with a BLA (bilateral adrenalectomy) instead of a repeat pituitary surgery for Cushing’s recurrence is Adrenal Insufficiency.  Another is Nelson’s Syndrome.

Nelson’s syndrome is a rare disorder that occurs in some patients with Cushing’s disease patients as a result of removing both adrenal glands. In Nelson’s syndrome, the pituitary tumor continues to grow and release the hormone ACTH.

This invasive tumor enlarges, often causing visual loss, pituitary failure and headaches. One key characteristic of Nelson’s disease is dark skin pigmentation, resulting from the skin pigment cells responding to the release of ACTH.

AnchorNelson’s Syndrome: Physiology

Nelson’s syndrome can develop as a result of a specific treatment (bilateral adrenalecomy) for the pituitary disease called Cushing’s disease. The harmful effects of Cushing’s disease are due to the excessive amount of the hormone cortisol produced by the adrenal glands.

To treat Cushing’s disease, your doctor may recommend removing the adrenal glands, during a procedure called a bilateral adrenalectomy. The procedure will stop cortisol production and provide relief. However, the procedure does not treat the actual tumor. Rapid growth of the pituitary tumor can occur.

In about 15-25 percent of patients who had a bilateral adrenalectomy, Nelson’ syndrome develops within one to four years.

Darkening of Skin Color - Nelson's Syndrome SymptomAnchor

Nelson’s Syndrome: Symptoms

The most obvious symptom of Nelson’s syndrome is the darkening of the skin color (hyperpigmentation).

Macroadenomas

Macroadenomas are large pituitary tumors. Large tumors can compress surrounding structures, primarily the normal pituitary gland and optic (visual) pathways, causing symptoms. The symptoms that result from the compression are independent of the effects of excess growth hormone secretion.
This may result in vision problems:

  • Vision loss. This occurs when macroadenomas grow upward into the brain cavity, compressing the optic chiasm.
  • A loss of the outer peripheral vision, called a bitemporal hemianopsia Bitemporal Hemianopsia - Symptom of Nelson's Syndrome
    • When severe, a patient can only see what is directly in front of them.
    • Many patients do not become aware of their visual loss until it is quite severe.
  • Other visual problems can include:
    • Loss of visual acuity (blurry vision), especially if the macroadenoma grows forward and compresses an optic nerve.
    • Colors not perceived as bright as usual

Pituitary Failure or Hypopituitarism

Increased compression of the normal gland can cause hormone insufficiency, called hypopituitarism. The symptoms depend upon which hormone is involved.

AnchorNelson’s Syndrome: Diagnosis

Most patients with Nelson’s syndrome have undergone a bilateral adrenalectomy for the treatment of Cushing’s disease

Diagnostic testing includes:

  • Hormone testing. Typically, the blood ACTH levels are very elevated. Learn more about hormone testing at the UCLA Pituitary Tumor Program.
  • MRI imaging. Magnetic resonance imaging (MRI) scan of the pituitary gland can detect the presence of an adenoma, a pituitary tumor.

AnchorNelson’s Syndrome: Treatment Options

Surgery for Nelson's Syndrome

Treating Nelson’s syndrome effectively requires an experienced team of experts. Specialists at the UCLA’s Pituitary Tumor Program have years of experience managing the complex coordination and care for treatment of Nelsons’ syndrome.

Treatment options include:

AnchorSurgery for Nelson’s Syndrome

Surgical removal of the pituitary adenoma is the ideal treatment; however, it is not always possible. Surgical removal requires advanced surgical approaches, including delicate procedures involving the cavernous sinus.

If surgery is required, typically the best procedure is through a nasal approach. Our neurosurgeons who specialize in pituitary tumor surgery are experts in the minimally invasive expanded endoscopic endonasal technique. This procedure removes the tumor while minimizing complications, hospital time and discomfort. This advanced technique requires specialized training and equipment.

Very large tumors that extend into the brain cavity may require opening the skull (craniotomy) to access the tumor. Our surgeons are also experts in the minimally invasive “key-hole” craniotomy, utilizing a small incision hidden in the eyebrow.

AnchorRadiation Therapy for Nelson’s Syndrome

Radiation Therapy for Nelson's SyndromeRadiation therapy can be effective in controlling the growth of the tumor. However, if you received radiation therapy in the past, additional radiation may not be safe.

Our Pituitary Tumor Program offers the latest in radiation therapy, including stereotactic radiosurgery. This approach delivers a highly focused dose of radiation to the tumor while leaving the surrounding brain structures unharmed (with the exception of the normal pituitary gland).

One consequence of radiation treatment is that it can cause delayed pituitary failure. This typically occurs several years after treatment, and continued long-term follow-up with an endocrinologist is important. You may require hormone replacement therapy.

Medical Therapy for Nelson’s Syndrome

Medication for Nelson's SyndromeMedical therapies for the treatment of Nelson’s syndrome are currently limited, but include:

  • Somatostatin-analogs (SSAs). These medications are typically used to treat acromegaly. A small number of Nelson’s syndrome patients may respond.
  • Cabergoline. This medication is typically used to treat prolactinomas; you may require a very high dose.
  • Temozolomide. This is a type of chemotherapy used to treat primary brain tumors called glioblastoma.

If you require medication to treat Nelson’s syndrome, our endocrinologists will monitor you closely.

From http://pituitary.ucla.edu/body.cfm?id=53

 

Filed under: adrenal, adrenal crisis, Cushing's, pituitary, Rare Diseases, Treatments | Tagged: , , , , , , , , | Leave a comment »

Cushing’s Syndrome

Posted on May 22, 2015 by MaryO
Prof André Lacroix, MDcorrespondence,  Richard A Feelders, MD, Constantine A Stratakis, MD, Lynnette K Nieman, MD
Published Online: 21 May 2015
DOI: http://dx.doi.org/10.1016/S0140-6736(14)61375-1

Summary

Chronic exposure to excess glucorticoids results in diverse manifestations of Cushing’s syndrome, including debilitating morbidities and increased mortality.

Genetic and molecular mechanisms responsible for excess cortisol secretion by primary adrenal lesions and adrenocorticotropic hormone (ACTH) secretion from corticotroph or ectopic tumours have been identified. New biochemical and imaging diagnostic approaches and progress in surgical and radiotherapy techniques have improved the management of patients.

The therapeutic goal is to normalise tissue exposure to cortisol to reverse increased morbidity and mortality. Optimum treatment consisting of selective and complete resection of the causative tumour is necessay to allow eventual normalisation of the hypothalamic-pituitary-adrenal axis, maintenance of pituitary function, and avoidance of tumour recurrence. The development of new drugs offers clinicians several choices to treat patients with residual cortisol excess.

However, for patients affected by this challenging syndrome, the long-term effects and comorbidities associated with hypercortisolism need ongoing care.

Read the entire article (there is a fee of $31.50US) here.

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Myth: After a “cure” for Cushing’s, everyone heals and goes back to normal.

Posted on December 13, 2014 by MaryO

Myth: After a “cure” for Cushing’s, everyone heals and goes back to normal. All Cushing’s patients can easily heal with no repercussions after Cushing’s. After pituitary surgery or a Bilateral Adrenalectomy (BLA), life is great and being “cured” means having a “normal” life! After all, surgery is a “cure” and about 6 weeks later, you are back to normal. “Say, you had surgery XYZ long ago! Shouldn’t you be better by now?!!!!”

Fact: I can not even tell you how many people asked me “aren’t you better yet?!” after both of my surgeries! There are too many to count! There is a misperception that surgery means a cure and therefore, healing should happen magically and quickly. No! No! No! This is far from the truth.

The sad reality is that even some medical doctors buy into this myth and expect quick healing in their patients. However, they are not living in their patients bodies nor have they obviously read the extensive research on this. Research has shown that the healing process after surgery is a long and extensive one. One endocrinologist, expert from Northwestern, even referred to the first year after pituitary surgery for patients as “the year from hell”! He literally quoted that on a slide presentation.

It takes at least one year after pituitary surgery, for instance, to even manage hormones effectively. Surgery is invasive and hard. However, the hardest part comes AFTER surgery. This is when the body is compensating for all of the years of hormonal dysregulation and the patient is trying to get his/her levels back to normal.

There is a higher rate of recurrence of Cushing’s then we once thought. This means that after a patient has achieved remission from this illness, it is likely to come back. In these cases, a patient faces other treatments that may include radiation, the same type of surgery, or an alternative surgery.

For many pituitary patients who experience multiple recurrences, the last resort is to attack the source by removing both adrenal glands. This procedure is known as a Bilateral Adrenalectomy or BLA. In these cases, it is said that the patient “trades one disease for another”, now becoming adrenally insufficient and having Addison’s Disease. Both Pituitary and Adrenal patients are faced with a lifetime of either Secondary or Primary Adrenal Insufficiency.

Adrenal Insufficiency is also life threatening and adrenal crises can potentially lead to death. Additionally, research says that BLA patients take, on average, 3-5 years for their bodies to readjust and get anywhere near “normal”. Most patients will tell you that they never feel “normal” again!

Think of these facts the next time you feel tempted to ask your friend, family, or loved one, “why is it taking so long to get better after surgery?”. Remember that in addition to the aforementioned points; problems from Cushing’s can linger for years after surgery! One Cushing’s patient stated, “I’m 5 years post-op and I STILL have problems!” This mirrors the sentiments of many of us in the Cushing’s community. Please be conscious of this when supporting your loved one after treatment.

You can find more information in the following links:

http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2265.2011.04124.x/abstract;jsessionid=CC58CF32990A60593028F4173902EC47.f03t03?deniedAccessCustomisedMessage&userIsAuthenticated=false

http://press.endocrine.org/doi/abs/10.1210/jc.2013-1470

http://press.endocrine.org/doi/abs/10.1210/jc.2012-2893

This is another article that validates the aforementioned fact about the “cure myth”: http://home.comcast.net/~staticnrg/Cushing’s/resmini%20Cushing’s%20article-2.pdf

Filed under: adrenal, adrenal crisis, Cushing's, Myths and Facts, pituitary | Tagged: , , , , , , , , , , | Leave a comment »

Call for Papers: Cushing’s Syndrome: New Evidence and Future Challenges

Posted on November 13, 2014 by MaryO

Call for Papers

Cushing’s syndrome is a rare and potentially lethal disease which still represents a challenge for the endocrinologists, being characterized by elevated morbidity even long-term after the remission of hypercortisolism. Several diagnostic issues prevent an early recognition of the disease and rate of recurrence is significantly high after surgical, medical, or radiotherapy management.

Recent advances of biology and medicine are improving our knowledge on genetics and pathophysiology of this disease, both at the pituitary and adrenal level. New therapeutic agents are currently under investigation and an impelling need for efficacy and safety studies is rising in the endocrinology community. At the same time, the role of the “old” agents in the clinical practice is under debate and deserves a thorough analysis on larger series than those currently available. Likewise, the need for specific treatment of comorbidities is a clinical question which still remains unsolved.

We invite authors to submit original research and review articles that will stimulate the continuing efforts to understand the molecular pathology underlying Cushing’s syndrome, the development of strategies to diagnose and treat this condition in adults and children, and the evaluation of outcomes.

Potential topics include, but are not limited to:

  • Advances in genetics of Cushing’s syndrome
  • Diagnostic issues in Cushing’s syndrome
  • Novel paradigms for treatment of Cushing’s syndrome
  • Role of the “old” pharmacological agents in the treatment of Cushing’s syndrome
  • Persistent increased mortality and morbidity after “cure” of Cushing’s syndrome
  • Role of inflammation in the pathogenesis of Cushing’s syndrome
  • Cushing’s syndrome as model of metabolic derangements
  • Challenges in the diagnosis and treatment of paediatric Cushing’s syndrome
Manuscript Due Friday, 8 May 2015
First Round of Reviews Friday, 31 July 2015
Publication Date Friday, 25 September 2015

Lead Guest Editor

  • Elena Valassi, Autonomous University of Barcelona, Barcelona, Spain

Guest Editors

From http://www.hindawi.com/journals/ije/si/156126/cfp/

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Long-term remission and recurrence rate in a cohort of Cushing’s disease: the need for long-term follow-up

Posted on June 9, 2014 by MaryO

Pituitary. 2014 Apr 19. [Epub ahead of print]


Aranda G1, Enseñat J, Mora M, Puig-Domingo M, Martínez de Osaba MJ, Casals G, Verger E, Ribalta MT, Hanzu FA, Halperin I.

Author information

 Abstract

OBJECTIVE:

Transsphenoidal surgery is the procedure of choice in Cushing disease (CD), with immediate post-operative remission rates ranging between 59 and 94 % and recurrence rates between 3 and 46 %, both depending upon the definition criteria and the duration of the follow-up. Our aim was to assess the rate of remission, recurrence and persistence of the disease after the first treatment and to identify predictors of remission in the CD population of our center.

METHODS:

Retrospective cohort study of the patients diagnosed of CD and with follow-up in our center between 1974 and 2011. We analyzed 41 patients (35 women and 6 men) with a mean age at diagnosis of 34 ± 13 years. The mean follow-up was 14 ± 10 years (range 1-37 years) and the median of follow-up period was 6.68 years.

RESULTS:

Thirty-five (85.4 %) patients underwent transsphenoidal surgery as first treatment option. Histopathological evidence of a pituitary adenoma was registered in 17 (48.5 %) patients. Thirty-two (78 %) patients achieved disease remission after the first treatment, 21 (65.6 %) of them presented disease recurrence. Persistent disease was observed in 9 (22 %) patients. Twelve (29.3 %) subjects developed post-surgical adrenal insufficiency, 7 of which (70 %) achieved stable remission. Two parameters were found to be significant predictors of remission after the first treatment: age at disease diagnosis and the development of adrenal insufficiency (cortisol ❤ μg/dl) in the immediate post-operative state.

CONCLUSIONS:

We report a high recurrence rate, at least partially attributable to the long follow-up time. Early post-surgery adrenal insufficiency predicts remission. Hypopituitarism was also very prevalent, and strongly associated with radiotherapy. These results lead us to the conclusion that CD needs a life-long strict follow-up.

PMID:

 

24748528

 

[PubMed – as supplied by publisher]

Filed under: adrenal crisis, Cushing's, pituitary, Treatments | Tagged: , , , , , , , , , | Leave a comment »

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