University of Maryland GI Grand Rounds

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Community Health

Education Seminar

Diarrhea After Eating

The Argument for

Intermittent Maldigestion Condition and not just

“Irritable Bowel Syndrome-Diarrhea”

March 22, 2011

M. E. Money, M.D., FACP

Clinical Associate Professor Department of Medicine

University of Maryland School of Medicine

Office

354 Mill Street

Hagerstown, MD

301-797-0210

IRRITABLE BOWEL

SYNDROME

Brief Overview

M. E. Money. M.D.

Definition of IBS

IBS is a functional bowel disorder in which abdominal pain or discomfort is associated with defecation or a change in bowel habit. Bloating, distension, and disordered defecation are commonly associated features.

Irritable bowel syndrome: a global perspective. World

Gastroenterology Organizational Global Guideline. April 20, 2009

M. E. Money. M.D.

Diagnostic Criteria (Rome III)

• Onset of symptoms at least 6 months before diagnosis

Recurrent abdominal pain or discomfort for >3 days per month during the past 3 months

At least two of the following features:

Improvement with defecation

– Association with a change in frequency of stool

Association with a change in stool form

NB: What precedes the symptoms is not included.

WGO Practice Guidelines Irritable bowel syndrome 2009

M. E. Money. M.D.

Sub Types of IBS

IBS-Constipation

32%

IBS-Diarrhea

33%

IBS-diarrhea and constipation 35%

Executive Summary: IBS in Women: The Unmet Needs. Society for

Women’s Health Research. 2003

M. E. Money. M.D.

Mainstream concepts about IBS

E xact cause of irritable bowel syndrome not known.

Multiple factors thought to contribute to etiology.

To date an 'IBS gene' has not been identified.

The concept of IBS as a diagnosis of exclusion is

“not acceptable any more”.

The treatment of IBS is targeted at symptom relief.

Cognitive behavioral therapy is very beneficial.

M. E. Money. M.D.

Predisposing, and precipitating factors for irritable bowel syndrome

Predisposing factors

Genetic predisposition

• Early life experiences

• Intergenerational transmission of illness behavior

• Gender

Precipitating Factors

Acute and chronic stress

(life events)

• History of abuse

Infection and inflammation

• Bacterial flora and small bowel bacterial overgrowth

Intestinal gas and motility

M. E. Money. M.D.

Perpetuating factors for irritable bowel syndrome

• Maladaptive coping

• Poor social support

Psychological co-morbidity

Somatization disorder

Depression

– Anxiety

– Panic Disorder

Gastrointestinal Disorders: Irritable Bowel Syndrome. Journal of

Clinical Outcomes Volume 1 (4). 2007

M. E. Money. M.D.

Irritable bowel syndrome impact

Estimated: 15 Million people in the U.S.

Prevalence 10-20% of adults

$2 Billion in direct annual costs

$20 Billion in indirect annual costs

Estimated only 1/3 patients seek medical attention for condition.

Laudanum, U. Irritable Bowel Syndrome. Advanced Studies in Medicine. Vol.

4, No. 3. March 2004. Pages 128-134.

Executive Summary: IBS in Women: The Unmet Needs. Society for Women’s

Health Research.2003.

M. E. Money. M.D.

Mainstream treatment options for

IBS-Diarrhea

• Antidepressants

• Anticholinergics

(Bentyl, Levsin, etc)

Bulking agents

(metamucil, etc)

Chinese Herbal therapies

• Cholestyramine

• Antispasmodics

• Lactase supplementation

Antibiotics

Serotonin modulators

Antidiarrheals drugs

(Lomotil, etc)

Deodorized tincture of opium

M. E. Money. M.D.

Treatment options conclusion in

Prescire International 2009

“There is currently no way of radically modifying the natural course of recurrent irritable bowel syndrome”

Patients frequently complain of occasional bowel movement disorders, associated with abdominal pain or discomfort, but they are rarely due to an underlying organ involvement. Even when patients have recurrent symptoms, serious disorders are no more frequent in these patients than in the general population, unless other manifestations, anemia, or an inflammatory syndrome is also present;

Irritable bowel syndrome: a mild disorder; purely symptomatic treatment. Prescrire.Int

.

18(100), 75-79. 2009

M. E. Money. M.D.

Accuracy of symptom-based criteria for diagnosis of IBS in primary care

1

Reviewed 25 primary diagnostic studies.

2 research questions:

Performance of symptom-based criteria in excluding organic GI disease.

Performance of signs and symptoms in identifying

IBS

Conclusion: “organic disease cannot be accurately excluded by symptom-based IBS criteria alone.”

1 Jellema, P. et al. Systematic review: accuracy of symptom-based criteria for diagnosis of irritable bowel syndrome in primary care. Alimentary Pharmacology &

Therapeutics.

7-3-09. DOI: 10.1111/j.1365-2036

M. E. Money, MD

How did this research get started?

In September 2001, one of my patients came in

“demanding” that I prescribe something to help with her diarrhea that would occur after she ate out in restaurants with her family By that time, I had given pancreatic enzymes to 2 patients in my practice for after meal diarrhea due to surgery on the pancreas with good results and decided to give it to her as a

“clinical experiment.”

She returned 4 weeks later, reporting that “1 pill before the meal worked just fine”, 4 made her constipated.

By Christmas, I had prescribed it to another 10 individuals and all but one had complete symptom relief.

M. E. Money, M.D

How did this research get started?

By Christmas, I had also researched the current recommendations for IBS-D and had discovered pancreatic enzymes were not mentioned. I had also checked with 2 specialists to assure there was no harm in using enzymes, and decided to do my own study comparing pancreatic enzymes to placebos.

The study was approved by the Washington County

Review Board in January 2002 and the first patients were enrolled in February.

It concluded in 2003. 49 patients enrolled, 10 dropped out, and 25/39 who did participate “picked” the enzymes as the effective agent.

M. E. Money. M.D

DOUBLE BLIND, PLACEBO CONTROLLED

TRIAL USING PANCREATIC ENZYMES

Effectiveness of PA ncreatic En Z yme in Reduction of Irrit A ble Bowel S yndrome (IBS)

Symptoms “PAZAS”

Hypothesis

• Symptoms of post prandial IBS-D are due to maldigestion and/or malabsorption of certain foods, thus causing the abdominal symptoms including diarrhea for some patients.

Approved by WCH IRB 2/01, completed 11/03

M. E. Money. M.D.

15

PAZAS Inclusion Criteria

Meet the Rome II Criteria

• Be at least 18 and willing to give written informed consent,

• Have onset of symptoms before the age of 50

• Have symptoms occurring postprandial greater than 90% of the time within 3 hours of the trigger food/meal. Ideally should be able to identify some of the foods/spices/ or types of meals that precipitate the symptoms. (i.e. restaurant dining, Italian, Chinese, specific foods, lactose based*).

• *Participants must have at least one other food/spice that causes symptoms in addition to Lactose based foods.

• Be willing to comply with all of the study protocol.

• Have had a normal Colonoscopy or barium enema within the same time period of current symptoms.

• Have had IBS postprandial symptoms for greater than 5 years.

M. E. Money. M.D.

16

Methodology

Study stages:

1. Patients consumed 6 trigger meals recording symptoms (baseline)

2. Consumed same meals with blinded capsule.

3. Wash out period 2 weeks.

4. Consumed same meals with second blinded capsule.

5. Picked either drug 1 or 2 to use for another 25-50 meals.

6. Unblinded to patient only after patient completed study; unblinded to staff at study conclusion.

M. E. Money. M.D.

17

Symptoms evaluated and scoring

SYMPTOM

Cramping

POINTS POSSIBLE

0-10

Bloating.

Borborygami (gurgling, noises, churning)

0-10

0-10

Nausea 0-10

Intensity of the urge to have a bowel movement 0-10

Other symptoms (sweating, chills, weakness)

Global pain intensity

0-10

0-10

Number of Bowel Movements after eating the meal

(1 point for each BM)

Pilot study: a randomised, double blind, placebo controlled trial of pancrealipase for the treatment of postprandial irritable bowel syndrome-diarrhoea. Money, ME; Walkowiak,J; Virgilio,C.; Talley, NJ;

Frontline Gastroenterology.2011;2:48–56.

M. E. Money. M.D.

Summary of results

Total number of patients enrolled in study:

Number of patients who dropped out:

49

10

Number of patients who selected Enzymes as the

“effective agent” after trying both capsules: 25

Number of patients who selected placebo as the

“effective agent”: 10

In an intention to treat analysis, overall, 30/49 (61%) would have chosen enzymes (p=0.078)

Pilot study: a randomised, double blind, placebo controlled trial of pancrealipase for the treatment of postprandial irritable bowel syndrome-diarrhoea. Money,

ME; Walkowiak,J; Virgilio,C.; Talley, NJ; Frontline

Gastroenterology.2011;2:48–56.

M. E. Money. M.D.

Subset Analysis of Enzyme Patients

Preliminary Results I

7

6

5

4

3

2

1

0

Patient scored Severity of symptoms

0-10

Cramping Bloating Gurgling Nausea

Baseline

Placebo

Enzymes

M. E. Money. M.D.

Subset Analysis of Enzyme

Patients Preliminary Results II

2

1

0

4

3

9

8

7

6

5

BM urge BM # Onset Duration

Baseline

Placebo

Enzyme

M. E. Money. M.D.

Subset Analysis of Enzyme Patients

Preliminary Results III

25

20

15

10

5

0

Other sx

M. E. Money. M.D.

Pain Stool pts Lomotil pts

Baseline

Placebo

Enzymes

Quality of Life (QOL) survey

Patients were asked to score how each of 34 questions applied to their quality of life before and at conclusion of study.

0-Not at all,

1-slightly,

2-moderately,

3-quite a bit,

4-a great deal, extremely.

Used with the permission of Dr. D. L. Patrick, University of

Washington .

M. E. Money. M.D.

Examples of QOL questions

• I feel helpless because of my bowel problems.

• I feel like I’m losing control of my life because of my bowel problems.

I feel depressed about my bowel problem.

• I feel isolated from others because of my bowel problems.

Long trips are difficult for me because of my bowel problems.

My bowel problems are affecting my closest relationships .

M. E. Money. M.D.

QOL statistical analysis

Study enzyme subgroup

Statistical T-test Procedure “p” values comparing QOL scores at baseline and end of study

Helpless

Losing control of life p <.0001

<.0001

Depressed

Worry

Avoid stressful situations

Affecting closest relationships

.0002

<.0001

.0065

.0062

M. E. Money. M.D.

Effectiveness of pancreatic enzymes

A retrospective review was recently completed of all of the patients in my practice who had the diagnosis of IBS and had been treated by me from 2001-2010 to evaluate the effectiveness of the enzymes.

278 patients had received a diagnosis of spastic colon or

IBS

– 134 excluded since they had been treated by another practitioner

– 144 seen by me, and 104 had been offered PEZ

86/104 patients returned for follow-up, and 82.5% (71) reported positive improvement

M. E. Money. M.D.

Examples of Food Triggers Among

49 “users”

Food Trigger # % Food Trigger # %

Mexican Food 36 74% Green Peppers 18 37%

Cajun 33 67% Oranges 16 33%

Iceberg Lettuce 27 55% Onion 16 33%

Italian

Chinese

27 55% Broccoli

27 55% Garlic

16 33%

13 27%

Ice Cream

Milk

Corn

26 53% Beans

20 41% Apples

19 39% Tomatoes

13 27%

13 27%

12 25%

M. E. Money. M.D

.

Example of new patient

43 yr female seen by me as a new patient 7/24/09

History: Complains of intermittent increased loose stools after meals for 11 yrs, sometimes at night if eats late. She wonders if she has IBS. Symptoms may last for weeks once it gets started, otherwise only when eats out in restaurants. Worse with spicy foods, onions, garlicky Italian meals and tomatoes.

• Exam entirely normal. 64” tall, 161#

Chronic medical problems other than above: Asthma

Current meds: Zyrtec, Advair Diskus, Ventolin inhaler

Mother has similar digestion problem.

Patient had never had a colonoscopy .

28

M. E. Money. M.D.

New patient continued

• Patient referred to gastroenterologist who wrote:

“Patient states she has cramping, watery diarrhea alternating with constipation, up to 10x/day, mild in nature…..symptoms are suggestive of IBS.”

Investigation by gastroenterologist:

– Colonoscopy negative

– X-rays for the stomach and small intestine were normal

Blood tests for Celiac disease was normal

Biopsy of colon negative for pathology

• Treatment: Patient encouraged to try probiotics by gastroenterologist.

M. E. Money. M.D.

New patient continued

Additional testing ordered by me:

• Stool for fat: SMALL amount (8/19/09)

• Fecal elastase-1: 487 (normal >200) (test for pancreatic insufficiency)

Patient seen 9/4 in office. Probiotics tried by patient but did not prevent post restaurant dining diarrhea. I therefore gave the patient some samples of prescription pancreatic enzymes to try before restaurant meal or “triggers”. They worked with the first meal!

Current treatment: Pancreatic Enzymes before

“trigger” meals eliminates both the abdominal pain and diarrhea.

M. E. Money. M.D.

Why do the enzymes work?

For the last 8 years, I have pursued trying to figure out why the pancreatic enzymes work. This presentation will focus on my current hypothesis and why making the diagnosis of “irritable bowel syndromediarrhea” may limit further research into this condition.

M. E. Money. M.D.

Pancreatic Enzymes

• Composition:

Amylase, Lipases, Proteases, Co-lipases, other enzymes

• Known Action

– Initiates digestion of carbohydrates, lipids and proteins in the stomach

– Amylase potentiates the action disaccharidases by 10-

20x.

(Quezada-Calvillo, R. et al. Contribution of Mucosal Maltase-

Glucoamylase Activities to Mouse Small Intestinal Starch α-

Glucogenesis. Journal of Nutrition. 137:1725-1733, 2007

M. E. Money. M.D.

Sub types of IBS

IBS-Constipation

32%

IBS-Diarrhea

33%

IBS-diarrhea and constipation 35%

Executive Summary: IBS in Women: The Unmet Needs. Society for

Women’s Health Research. 2003

M. E. Money. M.D.

Incidence of diarrhea occurring after eating

50% of patients suffering with the diarrhea or mixed form of IBS related symptoms to eating.

However, the current definition of IBS does not encourage nor require the physician to inquire about any precipitating factor such as the condition occurring ONLY after eating.

M. E. Money. M.D.

Differential diagnosis for IBS

• Celiac Sprue/gluten enteropathy

Lactose intolerance (inherited or 2nd to mucosal damage)

• Inflammatory bowel disease

Colorectal carcinoma

• Lymphocytic and collagenous colitis

Acute diarrhea due to protozoa or bacteria

• Small-intestinal bacterial overgrowth (SIBO)

• Diverticulitis

Endometriosis

• Pelvic inflammatory disease

Ovarian cancer

• WGO Practice Guideline IBS 2009

M. E. Money. M.D.

What is missing from this differential diagnosis?

1. Bile acid malabsorption diarrhea

2. Pancreatic insufficiency

3. Carbohydrate Malabsorption

Alpha glucosidases (disaccharidases) deficiencies (maladigestion of starches)

– Congenital sucrase-isomaltase deficiency

Fructase deficiency

? Possible disaccharidase inhibition

M. E. Money. M.D.

Bile acid malabsorption

Bile acid malabsorption can occur in patients with or without an intact gall bladder

Bile acid malabsorption(BAM) may affect up to

30-50% of patients with chronic diarrhea

Can be treated with bile acid binding agents:

Welchol, Cholestyramine, Questran

Diagnosis by measurement of serum 7alphaC4

(not available for routine testing)

M. E. Money. M.D

Diarrhea predominant IBS (IBS-D): fact or fiction

Dr. Saad Habba, gastroenterologist in NY, analyzed all patients seen by him over the last 8 yrs for “IBS-D”.

575 patients seen, only 303 patients completed all of the studies. Of these 303 patients, 204 (68%) responded to bile acid binding agents with resolution of diarrhea.

Diarrhea Predominant Irritable Bowel Syndrome-Diarrhea: Fact or

Fiction. Habba,S., Medical Hypotheses 76(2011) 97-99.

M. E. Money. M.D

Pancreatic insufficiency

Pancreatic insufficiency was found in 6.1%

(19/314) patients who had been diagnosed as having IBS-D by the Rome Criteria. This was determined by the measurement of the fecal elastase-1 concentration in the stool. Patients were then treated with pancreatic enzyme supplements with a statistical improvement in stool frequency, consistency, and abdominal pain.

Some Patient With Irritable Bowel Syndrome May Have Exocrine

Pancreatic Insufficiency. Leeds, J et al, Clinical Gastroenterology and

Hepatology 2010; 8:433-438.

M. E. Money. M.D

Carbohydrate malabsorption

“Carbohydrate malabsorption and intolerance is suggested by the patient’s clinical history. The relation of symptoms to feeding and the occurrence of remission while fasting are crucial to the history. In older children and adults the symptoms can resemble those of dyspepsia or irritable bowel syndrome (IBS)…The diagnosis of functional bowel disease usually is made without evaluation of carbohydrate digestion… symptoms from IBS and carbohydrate intolerance can be confused easily”.

Disaccharide Digestion: Clinical and Molecular Aspects. Robayo-Torres, C. et al; Clinical Gastroenterology and Hepatology. 2006;4:276-287

M. E. Money. M.D.

1 ° Lactose malabsorption

• Frequency: Isolated deficiency in 16-24% of patients with

IBS and in 12% of patients with functional bowel complaints. (Autosomal recessive, C>T 13910, Intron 13 or MCMG 6 gene.)

Is usually combined with fructose, sorbitol, glucoamylase, sucrase, and maltase deficiency among patients with functional GI complaints.

• Disaccharide Digestion: Clinical and Molecular Aspects. Robayo-

Torres, C. et al; Clinical Gastroenterology and Hepatology.

2006;4:276-287

M. E. Money. M.D.

Carbohydrate malabsorption syndromes

1

°

Lactose Maldigestion

Due to Lactase deficiency,

(a beta-glucosidase)

Symptoms after the ingestion of milk products:

– Abdominal pain

– Cramps

– Urgent diarrhea

Time of onset: variable depending upon quantity and sensitivity of patien t

Disaccharide Maldigestion

Due to alphaglucosidase(s) deficiency

Symptoms after the ingestion of carbohydrates

(lettuce, beans, corn, etc)

– Abdominal pain

– Cramps

– Urgent diarrhea

Time of onset: variable depending upon quantity and sensitivity of patient

M. E. Money. M.D.

Digestion of starches

Initial hydrolysis of starches begin with the action of amylase from the saliva. 95% of starches are not broken down until they reach the small intestine where pancreatic amylase breaks the starch into smaller units: maltose, maltotriose, and limits dextran size.

M. E. Money. M.D.

Digestion of disaccharides: alpha-glucosidases

Further hydrolysis of carbohydrates after amylase involves the brush border disaccharidases also known as

“alpha-glucosidases:”

• Maltase

• Isomaltase

Sucrase

Trehalase

Gluco-amylase

M. E. Money. M.D.

Alpha-glucosidase inhibition

Drugs : Acarbose ( a diabetic medication to reduce absorption of carbohydrates by preventing absorption).

Side effect: >30% patients experience diarrhea

Spices and foods :

>1000 known to affect a-glucosidases

Examples:

Clove extract

Quercetin (found in onions, 5x more potent than acarbose)

Some spices >1000x more potent than acarbose

(verbal report Dr. Buford Nichols)

Bacterial Overgrowth

M. E. Money. M.D.

Sucrase-isomaltase deficiency in adults and varied symptoms

Sucrose-Isomaltose Malabsorption in an Adult Woman

(Sonntag, W. M. et al , 1964, Gastroenterology 47:18.)

20 Greenlandic Eskimos found to have sucrose malabsorption

8 adults, only 1 with symptoms

(McNair, et al . 1972, Sucrose malabsorption in Greenland, Br. Med J.

2:19.)

Ringrose (1980): 13 adult patients with bx proven SI def.

5 had persistant or intermittent symptoms since childhood

2 symptoms in childhood, disappeared again until 20; 40.

3 symptoms first appeared in first or second decade.

(1980, Dig. Dis. Sci. 25:384)

Gudmand-Hayer (1985) Studied 31 children, and 12 adults hospitalized in

Greenland. Of the 12 adults, 8 had a “long-lasting history of chronic diarrhea and abdominal complaints”.

M. E. Money. M.D.

Sucrase-isomaltase and glucoamylase deficiency in children

1-2% of children with severe diarrhea from birth are found to have an inherited sucrase-isomaltase disaccarhidase deficiency

Recent research by Dr. Buford Nichols (Baylor College,

Houston, Texas) in collaboration with Dr. Susan Baker

( Woman and Children Hospital of Buffalo, NY ) have found 26% of children with digestion symptoms have difficulty digesting starch due to a deficiency of glucoamylase.

M. E. Money. M.D.

More support for maldigestion as possible cause of diarrhea

A very low-carbohydrate diet improves symptoms and quality of life in IBS-D patients. 2009

Prospective Study

17 enrolled with moderate to severe IBS-D

Initially had 2 weeks of standard diet, then 4 weeks of very low (20gm carbohydrate/day).

13 completed the study. 10 (77%) reported adequate relief for all 4 weeks on the low carb diet; stool number decreased, QOL improved, and decrease in pain.

Clin Gastroenterol Hepatol. Austin, GL; Dalton, CB; et.al. 2009 June;

7(6) 706-708.el.doi:10.10167/j.cgh.2009.02.023

M. E. Money. M.D.

More support for maldigestion as possible cause of diarrhea

In Indonesia, biopsies taken from the small intestine were examined for concentration of Lactase,

Sucrase, and Maltase from 13 patients with chronic diarrhea, and compared to biopsies from

34 patients with “dyspepsia”.

Results: All of enzyme concentrations from the patients with chronic diarrhea were statistically lower than those with dypepsia.

Examination of small bowel enzymes in chronic diarrhea. J

Gastroenterol Hepatol. Simadibrata, m., et al.18(1): 53-6.

M. E. Money. M.D.

Working hypothesis

Diarrhea occurring after meals may actually be a subclinical form of inherited or acquired maldigestion, possibly related to a bile acid malabsorption or a mild deficiency, relative ineffectiveness or suppression of one or more enzymes: amylase, lipase, the disaccharidases, or others.

M. E. Money. M.D.

Summary

• The current Rome Criteria may be limiting appropriate research and treatment for a subset of

IBS-D patients who recognize the direct association of symptoms with meals or triggering foods. The relationship to meals should be sought in obtaining the history from patients.

A high percentage of these patients probably have a subclinical form of maldigestion which may be substantially improved by the use of enzymes or bile acid binding agents when taken immediately before eating the “triggering meal.”

M. E. Money. M.D.

Proposed new diagnosis

Intermittent Maldigestion Condition

(IMC)

Symptoms of increased bowel movement(s), occurring after eating a “specific meal type” or

“trigger” according to the patient, which may be altered in form or consistency. Symptoms may occur immediately after eating or several hours later and do not have to occur daily.

M. E. Money. M.D.

Potential treatment options for patients with diarrhea after meals

Over the counter agents:

Fiber capsules (which absorbs extra liquids)

Calcium (which slows down the motility naturally),

Enzyme supplement: Essential Enzymes 500 mg (by Source

Natural), an over the counter supplement (1-3) before eating any

“trigger meal” or daily as needed.

Prescription medications from a physician:

Pancreatic enzymes: examples: ZenPep 20,000 lipase, Creon 24

(1-3capsules) before eating any “trigger meal” or daily as needed.

Bile acid binding drugs: Questran 1-2 packages/day; Welchol

625 mg (1-3) before eating any trigger meal or daily as needed.

M. E. Money. M.D.

Future research questions

What is the incidence of sucrase-isomaltase deficieny in adults with diarrhea after eating?

• Do over the counter enzyme supplements work as well as the prescription pancreatic enzymes?

• How/why do certain food items cause the diarrhea?

Do the foods suppress the disaccharidase action or amylase from the pancreas or speed up the motility?

Are there specific genes that are predispose a person to having this problem?

M. E. Money. M.D.

Funding opportunities

Donations are welcomed to help fund this important research and can be made to the

RESEARCH FUND at the

Meritus Healthcare Foundation

HUB Plaza 1101 Opal Court Suite 301,

Hagerstown, MD 21740

301-790-8631 | TDD: 1-800-735-2258

Foundation@meritushealth.com

M. E. Money. M.D.

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