Adrenal Diseases During Pregnancy: Pathophysiology, Diagnosis And Management Strategies

Am J Med Sci. 2014 Jan;347(1):64-73. doi: 10.1097/MAJ.0b013e31828aaeee.

Author information

Abstract

: Adrenal diseases-including disorders such as Cushing’s syndrome, Addison’s disease, pheochromocytoma, primary hyperaldosteronism and congenital adrenal hyperplasia-are relatively rare in pregnancy, but a timely diagnosis and proper treatment are critical because these disorders can cause maternal and fetal morbidity and mortality.

Making the diagnosis of adrenal disorders in pregnancy is challenging as symptoms associated with pregnancy are also seen in adrenal diseases. In addition, pregnancy is marked by several endocrine changes, including activation of the renin-angiotensin-aldosterone system and the hypothalamic-pituitary-adrenal axis.

The aim of this article was to review the pathophysiology, clinical manifestation, diagnosis and management of various adrenal disorders during pregnancy.

PMID:
23514671
[PubMed – in process]

From http://www.ncbi.nlm.nih.gov/pubmed/23514671

Think Like a Doctor: Red Herrings Solved!

By LISA SANDERS, M.D.

On Thursday we challenged Well readers to take the case of a 29-year-old woman with an injured groin, a swollen foot and other abnormalities. Many of you found it as challenging as the doctors who saw her. I asked for the right test as well as the right diagnosis. More than 200 answers were posted.

The right test was…

The dexamethasone suppression test,though I counted those of you who suggested measuring the cortisol in the urine.

The right diagnosis was…

Cushing’s disease

More than a dozen of you got the right answer or the right test, but Dr. Davin Quinn, a consultant psychiatrist at the University of New Mexico Hospital, was the first to be right on both counts. As soon as he saw that the patient’s cortisol level was increased, he thought of Cushing’s. And he had treated a young patient like this one some years ago as a second year resident.

The Diagnosis:

Cushing’s disease is caused by having too much of the stress hormone cortisol in the body. Cortisol is made in the adrenal glands, little pyramid shaped organs that sit atop the kidneys. It is normally a very tightly regulated hormone that helps the body respond to physical stress.

Sometimes the excess comes from a tumor in the adrenal gland itself that causes the little organ to go into overdrive, making too much cortisol. More often the excess occurs when a tumor in the pituitary gland in the brain results in too much ACTH, the hormone that controls the adrenal gland.

In the body, cortisol’s most fundamental job is to make sure we have enough glucose around to get the body’s work done. To that end, the hormone drives appetite, so that enough fuel is taken in through the food we eat. When needed, it can break muscle down into glucose. This essential function accounts for the most common symptoms of cortisol excess: hyperglycemia, weight gain and muscle wasting. However, cortisol has many functions in the body, and so an excess of the hormone can manifest itself in many different ways.

Cushing’s was first described by Dr. Harvey Cushing, a surgeon often considered the father of modern neurosurgery. In a case report in 1912, he described a 23-year-old woman with sudden weight gain, mostly in the abdomen; stretch marks from skin too thin and delicate to accommodate the excess girth; easy bruising; high blood pressure and diabetes.

Dr. Cushing’s case was, it turns out, a classic presentation of the illness. It wasn’t until 20 years later that he recognized that the disease had two forms. When it is a primary problem of an adrenal gland gone wild and producing too much cortisol on its own, the disease is known as Cushing’s syndrome. When the problem results from an overgrown part of the pituitary making too much ACTH and causing the completely normal adrenal glands to overproduce the hormone, the illness is called Cushing’s disease.

It was an important distinction, since the treatment often requires a surgical resection of the body part where the problem originates. Cushing’s syndrome can also be caused by steroid-containing medications, which are frequently used to treat certain pulmonary and autoimmune diseases.

How the Diagnosis Was Made:

After the young woman got her lab results from Dr. Becky Miller, the hematologist she had been referred to after seeing several other specialists, the patient started reading up on the abnormalities that had been found. And based on what she found on the Internet, she had an idea of what was going on with her body.

“I think I have Cushing’s disease,” the patient told her endocrinologist when she saw him again a few weeks later.

The patient laid out her argument. In Cushing’s, the body puts out too much cortisol, one of the fight-or-flight stress hormones. That would explain her high blood pressure. Just about everyone with Cushing’s disease has high blood pressure.

She had other symptoms of Cushing’s, too. She bruised easily. And she’d been waking up crazy early in the morning for the past year or so – around 4:30 – and couldn’t get back to sleep. She’d heard that too much cortisol could cause that as well. She was losing muscle mass – she used to have well-defined muscles in her thighs and calves. Not any more. Her belly – it wasn’t huge, but it was a lot bigger than it had been. Cushing’s seemed the obvious diagnosis.

The doctor was skeptical. He had seen Cushing’s before, and this patient didn’t match the typical pattern. She was the right age for Cushing’s and she had high blood pressure, but nothing else seemed to fit. She wasn’t obese. Indeed, she was tall (5- foot-10) and slim (150 pounds) and athletic looking. She didn’t have stretch marks; she didn’t have diabetes. She said she bruised easily, but the endocrinologist saw no bruises on exam. Her ankle was still swollen, and Cushing’s can do that, but so can lots of other diseases.

The blood tests that Dr. Miller ordered measuring the patient’s ACTH and cortisol levels were suggestive of the disease, but many common problems — depression, alcohol use, eating disorders — can cause the same result. Still, it was worth taking the next step: a dexamethasone suppression test.

Testing, Then Treatment:

The dexamethasone suppression test depends on a natural negative feedback loop whereby high levels of cortisol suppress further secretion of the hormone. Dexamethasone is an artificial form of cortisol. Given in high doses, it will cause the level of naturally-occurring cortisol to drop dramatically.

The patient was told to take the dexamethasone pills the night before having her blood tested. The doctor called her the next day.

“Are you sure you took the pills I gave you last night?” the endocrinologist asked her over the phone. The doctor’s voice sounded a little sharp to the young woman, tinged with a hint of accusation.

“Of course I took them,” she responded, trying to keep her voice clear of any irritation.

“Well, the results are crazy,” he told her and proposed she take another test: a 24-hour urine test.

Because cortisol is eliminated through the kidneys, collecting a full day’s urine would show how much cortisol her body was making. So the patient carefully collected a day’s worth of urine.

A few days later, the endocrinologist called again: her cortisol level was shockingly high. She was right, the doctor conceded, she really did have Cushing’s.

An M.R.I. scan revealed a tiny tumor on her pituitary. A couple of months later, she had surgery to remove the affected part of the gland.

After recovering from the surgery, the patient’s blood pressure returned to normal, as did her red blood cell count and her persistently swollen ankle. And she was able to once again sleep through the night.

Red Herrings Everywhere:

As many readers noted, there were lots of findings that didn’t really add up in this case. Was this woman’s groin sprain part of the Cushing’s? What about the lower extremity swelling, and the excess red blood cell count?

In the medical literature, there is a single case report of high red blood cell counts as the presenting symptom in a patient with Cushing’s. And with this patient, the problem resolved after her surgery – so maybe they were linked.

And what about the weird bone marrow biopsy? The gastritis? The enlarged spleen? It’s hard to say for certain if any of these problems was a result of the excess cortisol or if she just happened to have other medical problems.

Why the patient didn’t have the typical symptoms of Cushing’s is easier to explain. She was very early in the course of the disease when she got her diagnosis. Most patients are diagnosed once symptoms have become more prominent

By the time this patient had her surgery, a couple of months later, the round face and belly characteristic of cortisol excess were present. Now, two years after her surgery, none of the symptoms remain.

From http://well.blogs.nytimes.com/2014/01/17/think-like-a-doctor-red-herrings-solved/?_php=true&_type=blogs&_r=0

Cushing Patients Could Be Diagnosed, Subtyped Using Plasma Steroid Levels

Patients with different subtypes of Cushing’s syndrome (CS) have distinct plasma steroid profiles. This could be used as a test for diagnosis and classification, a German study says.

The study, “Plasma Steroid Metabolome for Diagnosis and Subtyping Patients with Cushing Syndrome,” appeared in the journal Clinical Chemistry.

A quick diagnosis of CS is crucial so that doctors can promptly give therapy. However, diagnosing CS is often complicated by the multiple tests necessary not just to diagnose the disease but also to determine its particular subtype.

Cortisol, which leads to CS when produced at high levels, is a steroid hormone. But while earlier studies were conducted to determine whether patients with different subtypes of CS had distinct steroid profiles, the methods researchers used were cumbersome and have been discontinued for routine use.

Recently, a technique called LC-MS/MS has emerged for multi-steroid profiling in patients with adrenocortical dysfunction such as congenital adrenal hyperplasia, adrenal insufficiency and primary aldosteronism.

Researchers at Germany’s Technische Universität in Dresden used that method to determine whether patients with the three main subtypes of CS (pituitary, ectopic and adrenal) showed differences in plasma steroid profiles. They measured levels of 15 steroids produced by the adrenal glands in single plasma samples collected from 84 patients with confirmed CS and 227 age-matched controls.

They found that CS patients saw huge increases in the plasma steroid levels of 11-deoxycortisol (289%), 21-deoxycortisol (150%), 11-deoxycorticosterone (133%), corticosterone (124%) and cortisol (122%), compared to patients without the disease.

Patients with the ectopic subtype had the biggest jumps in levels of these steroids. However, plasma 18-oxocortisol levels were particularly low in ectopic disease. Other steroids demonstrated considerable variation.

Patients with the adrenal subtype had the lowest concentration of dehydroepiandrosterone (DHEA) and DHEA-SO4, which are androgens. Patients with the ectopic and pituitary subtype had the lowest concentration of aldosterone.

Through the use of 10 selected steroids, patients with different subtypes of CS could be identified almost as closely as with other tests, including the salivary and urinary free cortisol test, the dexamethasone-suppressed cortisol test, and plasma adrenocorticotropin levels. The misclassification rate using steroid levels was 9.5 percent, compared to 5.8 percent in other tests.

“This study using simultaneous LC-MS/MS measurements of 15 adrenal steroids in plasma establishes distinct steroid metabolome profiles that might be useful as a test for CS,” the team concluded, adding that using LC-MS/MS is advantageous, as specimen preparation is simple and the entire panel takes 12 minutes to run. This means it could be offered as a single test for both identification and subtype classification.

From https://cushingsdiseasenews.com/2018/01/02/plasma-steroid-levels-used-screen-diagnosis-subtyping-patients-cushing-syndrome/

Cushing’s Syndrome Treatments

Medications, Surgery, and Other Treatments for Cushing’s Syndrome

Written by | Reviewed by Daniel J. Toft MD, PhD

Treatment for Cushing’s syndrome depends on what symptoms you’re experiencing as well as the cause of Cushing’s syndrome.

Cushing’s syndrome is caused by an over-exposure to the hormone cortisol. This excessive hormone exposure can come from a tumor that’s over-producing either cortisol or adrenocorticotropic hormone (ACTH—which stimulates the body to make cortisol). It can also come from taking too many corticosteroid medications over a long period of time; corticosteroids mimic the effect of cortisol in the body.

The goal of treatment is to address the over-exposure. This article walks you through the most common treatments for Cushing’s syndrome.

Gradually decreasing corticosteroid medications: If your doctor has identified that the cause of your Cushing’s syndrome is corticosteroid medications, you may be able to manage your Cushing’s syndrome symptoms by reducing the overall amount of corticosteroids you take.

It’s common for some people with certain health conditions—such as arthritis and asthma—to take corticosteroids to help them manage their symptoms. In these cases, your doctor can prescribe non-corticosteroid medications, which will allow you to reduce—or eliminate—your use of corticosteroids.

It’s important to note that you shouldn’t stop taking corticosteroid medications on your own—suddenly stopping these medications could lead to a drop in cortisol levels—and you need a healthy amount of cortisol. When cortisol levels get too low, it can cause a variety of symptoms, such as muscle weakness, fatigue, weight loss, and low blood pressure, which may be life-threatening.

Instead, your doctor will gradually reduce your dose of corticosteroids to allow your body to resume normal production of cortisol.

If for some reason you cannot stop taking corticosteroids, your doctor will monitor your condition very carefully, frequently checking to make sure your blood glucose levels as well as your bone mass levels are normal. Elevated blood glucose levels and low bone density are signs of Cushing’s syndrome.

Surgery to remove a tumor: If it’s a tumor causing Cushing’s syndrome, your doctor may recommend surgery to remove the tumor. The 2 types of tumors that can cause Cushing’s are pituitary tumors (also called pituitary adenomas) and adrenal tumors. However, other tumors in the body (eg, in the lungs or pancreas) can cause Cushing’s syndrome, too.

Pituitary adenomas are benign (non-cancerous), and most adrenal tumors are as well. However, in rare cases, adrenal tumors can be malignant (cancerous). These tumors are called adrenocortical carcinomas, and it’s important to treat them right away.

Surgery for removing a pituitary tumor is a delicate process. It’s typically performed through the nostril, and your surgeon will use tiny specialized tools. The success, or cure, rate of this procedure is more than 80% when performed by a surgeon with extensive experience. If surgery fails or only produces a temporary cure, surgery can be repeated, often with good results.

If you have surgery to remove an adrenal tumor or tumor in your lungs or pancreas, your surgeon will typically remove it through a standard open surgery (through an incision in your stomach or back) or minimally invasive surgery in which small incisions are made and tiny tools are used.

In some cases of adrenal tumors, surgical removal of the adrenal glands may be necessary.

Radiation therapy for tumors: Sometimes your surgeon can’t remove the entire tumor. If that happens, he or she may recommend radiation therapy—a type of treatment that uses high-energy radiation to shrink tumors and/or destroy cancer cells.

Radiation therapy may also be prescribed if you’re not a candidate for surgery due to various reasons, such as location or size of the tumor. Radiation therapy for Cushing’s syndrome is typically given in small doses over a period of 6 weeks or by a technique called stereotactic radiosurgery or gamma-knife radiation.

Stereotactic radiosurgery is a more precise form of radiation. It targets the tumor without damaging healthy tissue.

With gamma-knife radiation, a large dose of radiation is sent to the tumor, and radiation exposure to the healthy surrounding tissues is minimized. Usually one treatment is needed with this type of radiation.

Medications for Cushing’s syndrome: If surgery and/or radiation aren’t effective, medications can be used to regulate cortisol production in the body. However, for people who have severe Cushing’s syndrome symptoms, sometimes medications are used before surgery and radiation treatment. This can help control excessive cortisol production and reduce risks during surgery.

Examples of medications your doctor may prescribe for Cushing’s syndrome are: aminoglutethimide (eg, Cytadren), ketoconazole (eg, Nizoral), metyrapone (eg, Metopirone), and mitotane (eg, Lysodren). Your doctor will let you know what medication—or combination of medications—is right for you.

You may also need to take medication after surgery to remove a pituitary tumor or adrenal tumor. Your doctor will most likely prescribe a cortisol replacement medication. This medication helps provide the proper amount of cortisol in your body. An example of this type of medication is hydrocortisone (a synthetic form of cortisol).

Experiencing the full effects of the medication can take up to a year or longer. But in most cases and under your doctor’s careful supervision, you can slowly reduce your use of cortisol replacement medications because your body will be able to produce normal cortisol levels again on its own. However, in some cases, people who have surgery to remove a tumor that causes Cushing’s syndrome won’t regain normal adrenal function, and they’ll typically need lifelong replacement therapy.2

Treating Cushing’s Syndrome Conclusion
You may need one treatment or a combination of these treatments to effectively treat your Cushing’s syndrome. Your doctor will let you know what treatments for Cushing’s syndrome you’ll need.

From https://www.endocrineweb.com/conditions/cushings-syndrome/cushings-syndrome-treatments

Welcome!

This site is provided at no charge by the Cushings Help Organization, Inc. for Cushing’s patients, friends and family – or anyone who wants to learn more about Cushing’s.

What is Cushing’s?

Cushing’s syndrome, also known as hypercortisolism or hyperadrenocorticism, is an endocrine disorder caused by prolonged exposure of the body’s tissues to high levels of the hormone cortisol (in the blood) from a variety of causes, including primary pituitary adenoma (known as Cushing’s disease), primary adrenal hyperplasia or neoplasia, ectopic ACTH production (e.g., from a small cell lung cancer), and iatrogenic (steroid use). It is relatively rare and most commonly affects adults aged 20 to 50. An estimated 10 to 15 of every million people are affected each year. Cushing’s was discovered by American physician, surgeon and endocrinologist Harvey Cushing (1869-1939) and reported by him in 1932.

Normally, cortisol is released from the adrenal glands in response to ACTH being released from the pituitary gland. Both Cushing’s syndrome and Cushing’s disease are characterized by elevated levels of cortisol in the blood, but the cause of elevated cortisol differs between the two.

  • Cushing’s disease specifically refers to a tumor in the pituitary gland that stimulates excessive release of cortisol from the adrenal glands by releasing large amounts of ACTH.
  • In Cushing’s syndrome, ACTH levels will normally drop due to negative feedback from the high levels of cortisol. All forms of Cushing’s are correctly called Cushing’s Syndrome.

Cushing’s syndrome occurs when the body’s tissues are exposed to excessive levels of cortisol for long periods of time. Cortisol helps maintain blood pressure and cardiovascular function and is responsible for helping the body respond to stress. Many people suffer the symptoms of Cushing’s syndrome because they take steroids such as prednisone for asthma, rheumatoid arthritis, lupus and other inflammatory diseases, or for immunosuppression after transplantation. Prednisone is well-known for a “bloating” look that it gives people who take it.

Others develop Cushing’s syndrome because of overproduction of cortisol by the body due to a tumor on the pituitary (usually an adenoma or benign tumor of the pituitary glands) or adrenal glands, or elsewhere in the body Adrenal cancers, or other adrenal abnormalities may be the cause of Cushing’s Syndrome as well.

People who have been diagnosed with depression, alcoholism, malnutrition and panic attacks tend to have higher cortisol levels as well. These types of Cushing’s may be called Pseudo-Cushing’s.

Symptoms vary, but most people have upper body obesity (central obesity), rounded face (“moon face”), increased fat around the neck and on the back of the neck (buffalo hump), and thinning arms and legs. Children tend to be obese with slowed growth rates.

Other symptoms appear in the skin, which becomes fragile and thin. It bruises easily and heals poorly. Purplish pink stretch marks (straie) may appear on the abdomen, thighs, buttocks, arms and breasts. The bones are weakened, and routine activities such as bending, lifting or rising from a chair may lead to backaches, rib and spinal column fractures.

Most people have severe fatigue, weak muscles, persistent hypertension (due to the aldosterone-like effects) and insulin resistance, leading to hyperglycemia (high blood sugars) which can lead to diabetes mellitus. Patients frequently suffer various psychological disturbances, ranging from euphoria to frank psychosis. Depression and anxiety, including panic attacks, are common.

Women usually have excess hair growth (hirsutism) on their faces, necks, chests, abdomens, and thighs. Their menstrual periods may become irregular or stop (amenorrhoea). Men have decreased fertility with diminished or absent desire for sex.

Other symptoms include excess sweating, telangiectasia (dilation of capillaries, spider veins), atrophy of the skin (which gets thin and bruises easily) and other mucous membranes, proximal muscle weakness (hips, shoulders).

The excess cortisol may also affect other endocrine systems and cause, for example, reduced libido, impotence and infertility.

Untreated Cushing’s syndrome can lead to heart disease and increased mortality. Excess ACTH may also result in hyperpigmentation of the skin.

For a more complete list of Cushing’s Symptoms, see the Cushing’s Checklist. Many tests are done to determine if a person has Cushing’s. You can find a listing of them here.

The message boards are very active and we have weekly online chats, local meetings, email newsletters, a clothing exchange, a Cushing’s Awareness Day Forum in honor of Dr. Harvey Cushing’s birthday April 8, phone support and much more. Whenever one of the members of the boards gets into NIH, we try to go to visit them there. Other board members participate in the “Cushie Helper” program where they support others with one-on-one support, doctor/hospital visits, transportation issues and more.

Who Gets Cushing’s?

People just like you!