A retrospective analysis of postoperative hypokalemia in pituitary adenomas after transsphenoidal surgery

Abstract.

Background

Pituitary adenoma is one of the most common intracranial neoplasms, and its primary treatment is endoscopic endonasal transsphenoidal tumorectomy. Postoperative hypokalemia in these patients is a common complication, and is associated with morbidity and mortality. This study aimed to analyze the etiopathology of postoperative hypokalemia in pituitary adenomas after endoscopic transsphenoidal surgery.

Methods and Materials

This retrospective study included 181 pituitary adenomas confirmed by histopathology. Unconditional logistic regression analysis was used to calculate odds ratios (ORs) and 95% confidence intervals (CIs). Repeated measures ANOVA was used to analyze change in serum potassium levels at different time points.

Results

Multiple Logistic regression analysis revealed that only ACTH-pituitary adenoma (OR = 4.92, 95% CI [1.18–20.48], P = 0.029) had a significant association with postoperative hypokalemia. Moreover, the overall mean serum potassium concentration was significantly lower in the ACTH versus the non-ACTH group (3.34 mmol/L vs. 3.79 mmol/L, P = 0.001). Postoperative hypokalemia was predominantly found in patients with ACTH-pituitary adenoma (P = 0.033).

Conclusions

ACTH-pituitary adenomas may be an independent factor related postoperative hypokalemia in patients despite conventional potassium supplementation in the immediate postoperative period.

Cite this as

You L, Li W, Chen T, Tang D, You J, Zhang X. (2017) A retrospective analysis of postoperative hypokalemia in pituitary adenomas after transsphenoidal surgery. PeerJ5:e3337 https://doi.org/10.7717/peerj.3337

Read the entire article at https://peerj.com/articles/3337/

Cushing’s Testing at NIH

Rank Status Study
1 Recruiting Study to Evaluate CORT125134 in Patients With Cushing’s Syndrome

Condition: Cushing’s Syndrome
Intervention: Drug: CORT125134
2 Recruiting Cushing’s Disease Complications

Condition: Cushing’s Disease
Intervention: Other: Exams and questionnaires
3 Recruiting The Accuracy of Late Night Urinary Free Cortisol/Creatinine and Hair Cortisol in Cushing’s Syndrome Diagnosis

Condition: Cushing Syndrome
Intervention:
4 Recruiting Treatment for Endogenous Cushing’s Syndrome

Condition: Endogenous Cushing’s Syndrome
Intervention: Drug: COR-003
5 Recruiting Saliva Cortisol Measurement as a Screening Test for Suspicious Cushings Syndrome in Children.

Condition: Cushings Syndrome
Intervention: Other: Children refered to the obesity clinic
6 Recruiting Safety and Efficacy of LCI699 for the Treatment of Patients With Cushing’s Disease

Condition: Cushing’s Disease
Intervention: Drug: LCI699
7 Recruiting Treatment of Cushing’s Disease With R-roscovitine

Condition: Cushings Disease
Intervention: Drug: R-roscovitine
8 Recruiting A Study of ATR-101 for the Treatment of Endogenous Cushing’s Syndrome

Condition: Cushing Syndrome
Interventions: Drug: ATR-101;   Drug: Placebos
9 Recruiting Evaluation of 68Ga-DOTATATE PET/CT, Octreotide and F-DOPA PET Imaging in Patients With Ectopic Cushing Syndrome

Condition: Cushing Syndrome
Interventions: Drug: F-DOPA PET Scan;   Drug: Mifepristone;   Drug: Ga-DOTATATE;   Drug: Octreoscan;   Other: CT, MRI
10 Not yet recruiting Endocrine Cardiomyopathy in Cushing Syndrome: Response to Cyclic GMP PDE5 inhibitOrs

Condition: Cushing’s Syndrome Cardiomyopathy
Intervention: Drug: Tadalafil
11 Recruiting Long-term Beneficial Metabolic Effects of Adrenalectomy in Subclinical Cushing’s Syndrome of Adrenal Incidentaloma

Condition: Cushing Syndrome
Intervention: Procedure: surgery
12 Recruiting Long Term Safety and Efficacy of Pasireotide s.c. in Patients With Cushing’s Disease

Condition: Cushings Disease
Intervention: Drug: SOM230
13 Recruiting New Imaging Techniques in the Evaluation of Patients With Ectopic Cushing Syndrome

Condition: Cushing Syndrome
Interventions: Drug: Pentetreotide;   Drug: 18-F-fluorodeoxyglucose;   Drug: (18F)-L-3,4-dihydroxyophenylalanine (18F-DOPA)
14 Not yet recruiting Targeting Iatrogenic Cushing’s Syndrome With 11β-hydroxysteroid Dehydrogenase Type 1 Inhibition

Condition: Iatrogenic Cushing’s Disease
Interventions: Drug: AZD4017 and prednisolone;   Drug: Placebo Oral Tablet and prednisolone
15 Not yet recruiting Assessment of Persistent Cognitive Impairment After Cure of Cushing’s Disease

Condition: Cushing’s Disease
Intervention: Device: Virtual radial task in 3D
16 Recruiting Biomarker Expression in Patients With ACTH-Dependent Cushing’s Syndrome Before and After Surgery

Condition: Cushing’s Syndrome
Intervention:
17 Recruiting Efficacy and Safety Evaluation of Osilodrostat in Cushing’s Disease

Condition: Cushing’s Disease
Interventions: Drug: osilodrostat;   Drug: osilodrostat Placebo
18 Recruiting Effects of Metyrapone in Patients With Endogenous Cushing’s Syndrome

Condition: Cushing’s Syndrome
Intervention: Drug: metyrapone
19 Recruiting Adrenal Venous Sampling in Patients With Overt or Subclinical Cushings Syndrome, and Bilateral Adrenal Tumors

Condition: Cushing Syndrome
Intervention: Radiation: Adrenal venous sampling
20 Recruiting Glycemic Fluctuations in Newly Diagnosed Growth Hormone-Secreting Pituitary Adenoma and Cushing Syndrome Subjects

Condition: Pituitary Adenoma
Intervention: Device: continuous glucose monitoring
Rank Status Study
21 Recruiting Targeted Therapy With Gefitinib in Patients With USP8-mutated Cushing’s Disease

Conditions: Cushing’s Disease;   Corticotrophin Adenoma
Intervention: Drug: Gefitinib
22 Recruiting Cardiac Steatosis in Cushing’s Syndrome

Conditions: Endocrine System Disease;   Cardiovascular Imaging
Intervention: Other: 1H magnetic resonance spectroscopy and CMRI
23 Recruiting Study of Management of Pasireotide-induced Hyperglycemia in Adult Patients With Cushing’s Disease or Acromegaly

Conditions: Cushing’s Disease;   Acromegaly
Interventions: Drug: Pasireotide s.c.;   Drug: Sitagliptin;   Drug: Liraglutide;   Drug: Insulin;   Drug: Pasireotide LAR;   Drug: Metformin
24 Recruiting Study of Efficacy and Safety of Osilodrostat in Cushing’s Syndrome

Conditions: Cushing’s Syndrome;   Ectopic Corticotropin Syndrome;   Adrenal Adenoma;   Adrenal Carcinoma;   AIMAH;   PPNAD
Intervention: Drug: Osilodrostat
25 Recruiting Effects of Hormone Stimulation on Brain Scans for Cushing s Disease

Condition: Pituitary Neoplasm
Intervention: Drug: Acthrel
26 Recruiting Does Serum-DXM Increase Diagnostic Accuracy of the Overnight DXM Suppression Test in the Work-up of Cushing’s Syndrome?

Conditions: Cushing’s Syndrome;   Adrenal Incidentalomas;   Alcoholism;   Obesity
Intervention:
27 Recruiting Adrenalectomy Versus Follow-up in Patients With Subclinical Cushings Syndrome

Condition: Adrenal Tumour With Mild Hypercortisolism
Intervention: Procedure: Adrenalectomy
28 Recruiting Study of Adrenalectomy Versus Observation for Subclinical Hypercortisolism

Conditions: Hypercortisolism;   Cushing Syndrome
Interventions: Procedure: Adrenalectomy;   Other: Observation
29 Not yet recruiting Dynamic Hormone Diagnostics in Endocrine Disease

Conditions: Adrenal Insufficiency;   Congenital Adrenal Hyperplasia;   Cushing Syndrome;   Growth Hormone Deficiency;   Acromegaly;   Primary Hyperaldosteronism
Intervention: Other: 27 hour subcutaneous fluid sampling
30 Recruiting An Investigation of Pituitary Tumors and Related Hypothalmic Disorders

Conditions: Abnormalities;   Craniopharyngioma;   Cushing’s Syndrome;   Endocrine Disease;   Pituitary Neoplasm
Intervention:
31 Recruiting Ga-68-DOTATOC -PET in the Management of Pituitary Tumours

Condition: Pituitary Tumours
Intervention: Procedure: Gallium-68 DOTATOC PET
32 Recruiting Efficacy of Mifepristone in Males With Type 2 Diabetes Mellitus

Conditions: Type 2 Diabetes Mellitus;   Insulin Resistance
Interventions: Drug: Mifepristone 600 mg daily;   Drug: Placebo
33 Recruiting Targeted Therapy With Lapatinib in Patients With Recurrent Pituitary Tumors Resistant to Standard Therapy

Conditions: Pituitary Adenomas;   Prolactinomas
Intervention: Drug: Lapatinib
34 Recruiting Mutations of Glucocorticoid Receptor in Bilateral Adrenal Hyperplasia

Condition: General Glucocorticoid Resistance
Intervention: Genetic: blood collection for mutation characterization
35 Recruiting Defining the Genetic Basis for the Development of Primary Pigmented Nodular Adrenocortical Disease (PPNAD) and the Carney Complex

Conditions: Cushing’s Syndrome;   Hereditary Neoplastic Syndrome;   Lentigo;   Neoplasm;   Testicular Neoplasm
Intervention:
36 Not yet recruiting Reduction by Pasireotide of the Effluent Volume in High-output Enterostomy in Patients Refractory to Usual Medical Treatment

Condition: Enterostomy
Interventions: Drug: Pasireotide;   Drug: Placebo
37 Recruiting Mifepristone for Breast Cancer Patients With Higher Levels of Progesterone Receptor Isoform A Than Isoform B.

Condition: Breast Cancer
Intervention: Drug: Mifepristone
38 Recruiting SOM230 Ectopic ACTH-producing Tumors

Condition: Ectopic ACTH Syndrome
Intervention: Drug: Pasireotide
39 Recruiting Decreasing Rates of Intraurethral Catheterization Postoperatively in Spine Surgery

Condition: Post-operative Urinary Retention
Interventions: Drug: Tamsulosin;   Drug: Placebo
40 Recruiting Adrenal Tumors – Pathogenesis and Therapy

Conditions: Adrenal Tumors;   Adrenocortical Carcinoma;   Cushing Syndrome;   Conn Syndrome;   Pheochromocytoma
Intervention:

Corcept Therapeutics Announces Presentations on Mifepristone for the Treatment of Patients with Hypercortisolism

MENLO PARK, CA — (Marketwired) — 05/04/17 — Corcept Therapeutics Incorporated (NASDAQ: CORT), a pharmaceutical company engaged in the discovery, development and commercialization of drugs that treat severe metabolic, oncologic and psychiatric disorders by modulating the effects of cortisol, today announced that presentations about hypercortisolism and mifepristone’s role in treating that disorder will be presented at the 26th Annual Congress of the American Association of Clinical Endocrinologists (AACE) being held at the Austin Convention Center in Austin, Texas.

“There is growing awareness that even less severe degrees of hypercortisolism are harmful,” said Joseph K. Belanoff, M.D., Corcept’s Chief Executive Officer. “As a result, physicians are increasingly screening patients whose metabolic and cardiovascular symptoms have not responded to conventional therapy and finding cases of previously undetected Cushing’s syndrome.”

In addition to viewing the posters described below, AACE attendees may attend “Evolving Paradigms of Hypercortisolism,” a product theater talk by Ty Carroll, M.D. Corcept is a sponsor of the talk.

----------------------------------------------------------------------------
                            Thursday, May 4, 2017
----------------------------------------------------------------------------
             Poster #124
 Screening of Diabetic Patients Using
                U500
Insulin Uncovers a High Percentage of     Joseph W. Mathews, M.D., FACE
     Undiagnosed Hypercortisolism              James J. Smith, PhD
             Consistent
        with Cushing Syndrome
----------------------------------------------------------------------------
                    Friday, May 5, 2017, 12:45 - 1:30pm
                              Product Theater B
----------------------------------------------------------------------------
        Evolving Paradigms of
           Hypercortisolism                      Ty Carroll, M.D.
----------------------------------------------------------------------------
                             Friday, May 5, 2017
----------------------------------------------------------------------------
             Poster #131
      Medical Management of Mild
     Hypercortisolism and Primary
   Aldosteronism in a Patient with            Sandi-Jo Galati, M.D.
    ACTH-Independent Macronodular         Michele Lamerson, RN, MS, CPNP
             Hyperplasia
      Presenting with Resistant
            Hypertension
----------------------------------------------------------------------------
                                     Adriana G. Ioachimescu, M.D., PhD, FACE
             Poster #608                  Jonathan G. Ownby, M.D., FACE
   Improving Glycemic Control with       Nicole G. Greyshock, M.D., FACE
            Mifepristone                   Thomas C. Jones, M.D., FACE
in Cushing Syndrome Patients May Lead     Gary S. Wand, M.D., PhD, FACE
     to Significant Weight-loss                James J. Smith, PhD
----------------------------------------------------------------------------
             Poster #725
  Successful Medical Management with           Saima Farghani, M.D.
Mifepristone in a Patient with Occult     Michele Lamerson, RN, MS, CPNP
      Ectopic Cushing Syndrome
----------------------------------------------------------------------------
             Poster #836
  Mifepristone Therapy Significantly
              Improved
Insulin Resistance, Glycemic Control,     Jonathan G. Ownby, M.D., FACE
  and Weight Loss in a Patient with            James J. Smith, PhD
           Cushing Disease
 Previously Treated with Pasireotide
----------------------------------------------------------------------------
             Poster #839
  Mifepristone Reduced U500 Insulin
   Usage in a Patient with Cushing       Kimberley A. Bourne, M.D., FACE
  Disease and Normalized Concomitant           James J. Smith, PhD
 Fatty Liver Disease and Retinopathy
----------------------------------------------------------------------------

About Corcept Therapeutics Incorporated
Corcept is a pharmaceutical company engaged in the discovery, development and commercialization of drugs that treat severe metabolic, oncologic and psychiatric disorders by modulating the effects of cortisol. Korlym®, a first-generation cortisol modulator, is the company’s first FDA-approved medication. The company has a portfolio of proprietary compounds that modulate the effects of cortisol but not progesterone. Corcept owns extensive intellectual property covering the use of cortisol modulators, including mifepristone, in the treatment of a wide variety of serious disorders, including Cushing’s syndrome. It also holds composition of matter patents covering its selective cortisol modulators.

From http://news.sys-con.com/node/4073068

Postsurgical treatment often necessary in persistent, recurrent Cushing’s disease

Nearly half of adults with Cushing’s disease that persists or recurs after surgical treatment require second and sometimes third therapeutic interventions, including pituitary surgical reintervention, radiotherapy, pharmacotherapy or bilateral adrenalectomy, study data from Mexico show.

Moisés Mercado, MD, FRCPC, of the ABC Hospital Neurological and Cancer Centers in Mexico City, and colleagues evaluated 84 adults (median age, 34 years; 77 women) with Cushing’s disease to determine the long-term efficacy of secondary interventions for persistent and recurrent Cushing’s disease. Median follow-up was 6.3 years.

Overall, 81 participants were primarily treated with transsphenoidal surgery. More than half experienced long-lasting remission (61.7%); disease remained active in 16%, who were diagnosed with persistent Cushing’s disease; and 22% experienced relapse after remission and were diagnosed with recurrent Cushing’s disease.

After the initial procedure, 18 participants required pituitary surgical reintervention, including 10 with recurrent and eight with persistent disease. Radiation therapy was administered to 14 participants, including two as primary therapy and 12 after failed pituitary surgery. Pharmacologic treatment with ketoconazole was prescribed for 15 participants at one point during the course of disease. Bilateral adrenalectomy was performed in 12 participants.

Pituitary surgical reintervention was the most commonly used secondary treatment (22.2%), followed by pharmacologic therapy with ketoconazole (16%), radiotherapy (14.8%) and bilateral adrenalectomy (14.8%). More than half of participants experienced early remissions after a second operation (66.6%) and radiotherapy (58.3%), whereas long-lasting remission was reached in only 33.3% of participants who underwent a second surgery and 41.6% of participants who underwent radiotherapy. Half of participants who underwent bilateral adrenalectomy were diagnosed with Nelson’s syndrome.

Overall, 88% of participants achieved remission, and disease was biochemically controlled with pharmacologic treatment in 9.5% of participants after their initial, secondary and third-line treatments.

“The efficacy of treatment alternatives for recurrent or persistent [Cushing’s disease] vary among patients, and often, more than one of these interventions is required in order to achieve a long-lasting remission,” the researchers wrote. – by Amber Cox

Disclosure: The researchers report no relevant financial disclosures.

From http://www.healio.com/endocrinology/adrenal/news/in-the-journals/%7B5519b312-5912-4c65-b2ed-2ece3f68e83f%7D/postsurgical-treatment-often-necessary-in-persistent-recurrent-cushings-disease

Science Teacher Receives Support After Cushing’s Disease Diagnosis

I find it amazing that it’s newsworthy in this day and age for anyone receiving support after a diagnosis.  Of course, a diagnosed person should be getting support as a matter of course.  If she had cancer, everyone would be all over this.

For Kara Murrow, the most rewarding moments as a teacher come when students learn about animals in the classroom. So it’s difficult for the Bonham Elementary fifth-grade science and social studies teacher to be away from school while she prepares for surgery.

“I enjoy it, and I know my kids enjoy the class and enjoy science because of it,” Murrow said. “With the science club I do after school once a week, the kids get upset when it gets canceled because of meetings. Not having it now is upsetting, too.”

Murrow was diagnosed this month with Cushing’s disease, a condition that develops when a tumor on the pituitary gland causes it to secrete too much adrenocorticotropic hormone. Murrow, who moved to West Texas from Arizona three years ago, said she has received support from Midland ISD employees and others in the local community.

Murrow’s mother, Louise Gonzalez, also appreciates Midlanders’ concerns for her daughter.

“People in Midland have been wonderful, considering how new we are to the area,” Gonzalez said. “The school district sent out the GoFundMe page and there’s been an outpouring of support for that. People at my church always ask me.”

Murrow’s family is collecting donations from the website GoFundMe to cover the costs of medical and travel expenses. Murrow and her husband, Kai, recently spent money on hospital stays connected to their 4-year-old son’s food sensitivities.

“They’ve been paying off those bills and doing OK until this came,” Gonzalez said. “Plus, she’s been going to the doctor about this. Because Cushing’s is so rare, doctors don’t recognize it.”

Murrow was diagnosed with the disease after medical professionals discovered a tumor on her pituitary gland. For six years, she experienced symptoms — including weight gain, dizziness and headaches — but said doctors couldn’t determine the cause. Murrow was thankful when she received an answer.

“It was a huge relief to finally have a diagnosis and know that I wasn’t crazy or making things up,” Murrow said. “It’s weird to be excited about a brain tumor. It’s a relief to know what was happening and that I have a solution.”

Murrow traveled this week to Barrow Neurological Institute in Phoenix, where she’s scheduled to undergo surgery to remove the tumor. Though Murrow said recovery lasts several months, she hopes to return to the classroom next school year.

Jaime White, fourth-grade language arts and social studies teacher at Bonham, said both staff and students miss her presence. She said Murrow expresses concern for her students during her time away.

“She’s worried about how kids will do on the STAAR [State of Texas Assessments of Academic Readiness],” White said. “She doesn’t want them to think she abandoned them. The disease has to take center stage.”

At school, White said she noticed her colleague’s dedication toward helping her students understand science.

“She’s hands-on,” White said. “When it comes to science, she’s always making sure the kids are doing some sort of experiment. She wants to make sure the kids grasp it.”

Murrow teaches students about animals through dissections and presentations. Before she became a teacher nine years ago, she coordinated outreach programs at an Arizona zoo.

When she came to MISD, Murrow saw an opportunity to generate enthusiasm about science. She launched an invite-only science club for fifth-graders who show interest in the subject.

“I started it because there wasn’t really anything,” Murrow said. “They have tutorials for reading and math. There’s not a lot kids can do with science after school. They get science in the younger grades, but the focus is on reading and math. Science is something kids really enjoy.”

Though Murrow is disappointed about not being able to facilitate the club, she recognizes the importance of her upcoming surgery. She’s happy her mother, husband and two children will be in Phoenix for support.

“I hope that it will bring about a sense of relief to all the symptoms I’ve been dealing with and provide a chance for myself and my family to continue along with a full life,” Murrow said.

From http://www.mrt.com/news/local/article/Science-teacher-receives-support-after-11026581.php