Useful Information on Eosinophilic Disorders

A review (JB Wechsler et al. J Asthma Allergy 2014; 7: 85-94) provides practical advice on dietary management of eosinophilic esophagitis (EoE); the section on food reintroduction from elemental diets for patients with EoE is particularly helpful.  They start with typically less allergenic foods (group A) to most allergenic (group D) -from their Table 2:

Group A:

  • Vegetables (nonlegume): carrots, squash, sweet potato, white potato, string beans, broccoli, lettuce, beets, asparagus, cauliflower, Brussel sprouts
  • Fruit (noncitrus, nontropical) apples, pear, peaches, plum, apricot, nectarine, grape, raisins
  • Vegetables: tomatoes, celery, cucumber, onion, garlic, and other vegetables

Group B

  • Citrus fruit: orange, grapefruit, lemon, lime
  • Tropical fruit: banana, kiwi, pineapple, mango, papaya, guava, avocado
  • Melons: honeydew, cantaloupe, watermelon
  • Berries: strawberry, blueberry, raspberry, cherry, cranberry

Group C

  • Legumes: lima beans, chickpeas, white/black/red beans
  • Grains: oat, barley, rye, other grains
  • Meat: lamb, chicken, turkey, pork

Group D

  • Fish/shellfish
  • Corn
  •  Peas
  • Peanut
  • Wheat
  • Beef
  • Soy
  • Egg
  • Milk

Also, this review includes a long list of “freebie” foods allowed while on elemental diet, including artificial flavors/colors, corn syrup, oils, salt, crystal lite, and many others.

The authors note that “in our practice, the period of exclusive elemental formula is limited to 4 weeks prior to therapeutic assessment by endoscopy and reintroduction…Single foods are introduced every 5-7 days” within a group and then endoscopy after 3-4 foods are clinically tolerated.”  Foods from groups C and D are introduced more cautiously.

Also noted: HM Ko et al. Am J Gastroenterol 2014; 109: 1277-85.  This retrospective study of 30 children with severe gastric eosinophilia (mean age 7.5 years) provides a good deal of useful information.  Key point: “the disease is highly responsive to dietary restriction therapies.”  82% of patients responded to dietary restrictions and 78% had a histologic response as well.  Dietary treatments included amino acid-based diet in 6 (n=6), 7-food group empiric diet (n=6), and empiric avoidance of 1-3 foods (n=5).  Pharmacologic treatments (proton pump inhibitor or cromolyn) were attempted in a total of four patients in this series with half responding clinically and one of four responding histologically.

Related blog posts:

Disclaimer: These blog posts are for educational purposes only. Specific dosing of medications/diets (along with potential adverse effects) should be confirmed by prescribing physician/nutritionist.  This content is not a substitute for medical advice, diagnosis or treatment provided by a qualified healthcare provider. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a condition.

Biliary Dyskinesia –“Only in America”

In a recent commentary from Gastroenterology & Endoscopy News (http://www.gastroendonews.com), Moshe Schein reviews a recent study regarding biliary dyskinesia (BD) (Am J Surg 2015; 209: 799-803) which highlights that almost 20% of cholecystectomies in the U.S. are for noncalculous disease.

Key points:

  • The number of cholecystectomies for BD increased from 43.3 to 89.1 per 1 million between 1991-2011.
  • BD is “almost unheard of” in all other parts of the world.  “The majority of surgeons practicing outside the United States maintain that BD is a myth…Measuring gallbladder ejection fraction is something that they never do.”

My take: this is an area in need of a large randomized controlled trial.  Perhaps biliary dyskinesia will share the same fate as sphincter of Oddi dysfunction.

Related blog posts:

Jenny Lake, Grand Tetons

Jenny Lake, Grand Tetons

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Guest Blogger Needed

I am looking for a colleague who will be attending this year’s NASPGHAN meeting who may be interested in being a “guest blogger” since I will not be going.  Ideally, this person has been in practice for several years.  In previous years, I have taken notes at the postgraduate course and the meeting. I’ve tried to provide some important teaching points without repeating the obvious.

If you are interested, please send me an email to jjhochman@gmail.com with your contact information and we can work on the logistics.  This is an opportunity to keep your colleagues who are unable to attend updated along with a wider audience.  Currently, there are more than 600 followers of this blog.  Any content posted would be properly attributed.  Some examples of previous posts:

Acid Suppression/C difficile and Adrenal Suppression/Topical Steroids

Briefly noted:

J Jimenez et al. (JPGN 2015; 61: 208-11) provide more data that gastric acid suppression is associated with an increase risk of Clostridium difficile infection (CDI). This was a retrospective case-control study with 138 children with CDI and 276 controls. After adjustment, acid-suppression therapy had a 1.8 Odds Ratio association with CDI.

S Harel et al. (JPGN 2015; 61: 190-3) in this retrospective ‘pilot’ study of  patients receiving topical budesonide for eosinophilic esophagitis, 6 of 14 (43%) had mild biochemical evidence of adrenal suppression, as measured by ACTH testing. Bottomline: a prospective study is likely needed to confirm or refute these findings. In the meanwhile, stress steroid coverage could be considered in patients on prolonged budesonide.

Coffee and Caffeine Associated With Less Fibrosis Among Patients with Hepatitis C

Perhaps I need to start drinking coffee.  In the absence of smoking or alcohol, it is reported to have a number of benefits. A recent study (N Khalaf et al. Clin Gastroenterol Hepatol 2015; 13: 1521-31) found that a “modest daily caffeine intake (as little as 100 mg) may protect against advanced hepatic fibrosis in men with chronic HCV infection.” This cross-sectional study of veterans with chronic HCV looked at 910 patients.  Patients were divided into controls with mild fibrosis (F0-F3) based on FibroSURE compared with those with F3/F4-F4 advanced fibrosis.  FibroSURE estimates are based on an algorithm which incorporates α2-macroglobulin, apolipoprotein A1, haptoglobin, total bilirubin, γ-glutamyl -transpeptidase, and alanine amiontransferase. Key findings:

  • Caffeinated coffee was higher among controls than those with advanced fibrosis (1.37 vs 1.05 cups/d, P=.038)
  • Overall caffeine ingestion was also higher in the controls; 66% of controls consumed >100 mg/day compared with 58% of those with advanced fibrosis.

Limitation: observaitonal, retrospective study with self-reported coffee/caffeine consumption. Related blog posts:

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NASH Update -September 2015

Briefly noted:

Obeticholic acid, a Farnesoid X Receptor Ligand, is being studied as a potential agent in nonalcoholic steatohepatitis (NASH).  According to a recent study (Lancet 2015; 385: 956-65), patients assigned to receive obeticholic acid were more likely to have improved liver histology compared with placebo (50/110 [45%] compared with 23/109 [21%]).  The  obeticholic group had increase serum cholesterol and LDL cholesterol. This study looked at a subgroup of patients in the FLINT study who had undergone liver biopsies.

E Vilar-Gomez et al. Gastroenterol 2015; 149: 367-78. This prospective study of 293 patients with histologically-proven NASH were followed after undergoing lifestyle changes for 52 weeks. At week 52, 88 subjects (30%) had lost ≥5% of their weight.  Degree of weight loss was independently associated with improvements in all NASH-related histologic parameters (steatohepatitis, NAS activity score, and fibrosis.

G Lassailly et al. Gastroenterol 2015; 149: 379-88. Between 1994-2013, 109 morbidly-obese patients with histologically-proven NASH underwent bariatric surgery.  One year after surgery, NASH had disappeared from 85% of the patients.

P Angulo et al. Gastroenterol 2015; 149: 389-97. In this retrospective analysis of 619 patients with NAFLD (1979-2005), the authors noted that “fibrosis stage, but no other histologic features of steatohepatitis, were associated independently with long-term overall mortality, liver transplantation, and liver-related events.”

 

Off-Duty Doctors and Family Obligations

A mentor (thanks to WFB) forwarded me a recent article from the NY Times: A Doctor at His Daughter’s Hospital Bed written by a well-known (previous) transplant surgeon.

In essence, this article relates the problem a physician has when he suspects that the care a loved one is receiving is deficient and how strongly to advocate in this circumstance. In fact, this physician ended up grabbing/infusing several bags of IV fluids from a crash cart when the treating team was content to observe.  This article is well-written; I wanted to comment on my own struggles in this area.

First of all some background: one lesson that I learned the hard way was to act on your convictions even when this makes you unpopular.  When I was an intern, I was one of several team members in the care of a child with neurological problems.  I relayed my concerns that the child needed more aggressive care to both my supervising resident and to the subspecialty fellow.  Neither of these physicians acted on the problem.  Later in the day, I spoke with the attending physician.  Ultimately he agreed with my assessment but chided me for not contacting him sooner.  From that day forward, I’ve tried to make sure that if I didn’t get the answer I wanted regarding a patient’s care, that I would keep pursuing the matter until I did.  At the same time, it is worthwhile to try to be pleasant; acting in a nasty manner usually worsens the situation.

For my parents and loved ones, I’ve told them that when someone is hospitalized it is important to always have someone nearby to keep track of what is going on.  What medicine is being given?  Why was that imaging study ordered?  Why are the IV fluids being changed?  When will I see the … physician? This person does not have to be a doctor/healthcare provider, though sometimes that helps.

A few years ago, after an orthopedic surgery, my Mom was recovering in a ‘teaching’ hospital (not in Atlanta).  The surgeon had told me to call him if I had any concerns.  As my Mom returned to her room, I noticed that she did not have a pulse oximeter.  I told the nurse that this concerned me because I knew that she was receiving powerful pain relievers which could decrease her breathing.  The nurse tried to assure me that they would do “spot” checks; she said the hospital was full and there may not be enough pulse oximeters.  I insisted that spot checks were not good enough and to go ahead and contact the surgeon since he had asked me to call him with any concerns.  While I never spoke with a surgeon, the pulse oximeter showed up within five minutes.

About two weeks later, I received a call from Mom early on a Sunday morning.  She was having some chest pain.  I asked her if it had ever happened before and she related that it was the same type of pain she had had a few days after her operation.  She explained that this occurred in the middle of the night at the hospital.  Since the nurse told her the pain was due to anxiety and/or a panic attack [she had never suffered from either previously], neither she nor my Aunt wanted to call and wake me up.  So, on that Sunday, of course, I told her to take an aspirin and go straight to the hospital.  The physicians confirmed that she had had a heart attack.  They placed a stent the next day and she fortunately recovered.

My Dad has had a number of health problems.  On my birthday this year, he had to be transferred to the ER.  After his evaluation, we were told that he would need to be observed in the neurology ICU but there was not a bed available until the morning.  He was going to be monitored in the ER until then.  My twin brother is an early riser.  So that night, we agreed that I would stay with Dad until 4 am and he would take over at that point.  I planned to return to Atlanta to see patients (most had been scheduled for many weeks prior).

Fortunately, around 10 pm, one of the ER staff kindly brought me a comfortable foldout chair.  I tried to get a little rest.  Around 11 pm, a physician entered the ER bay.  Since he did not introduce himself, I questioned whether he was relieving the previous ER physician. He said no; he was a hospitalist.  I then asked whether a bed had opened up in the neurology ICU and whether he would like me to give him a brief summary of what had been happening.  His answer was simply that he did not know what the status of the neurology ICU was and that he did not need any information.  As he was leaving the ER bay, without even the briefest of exams, he said that all of the information that he needed was in the computers.  My response was to ask him if he knew how many CT scans my Dad had had in the past week.  He left without answering.

The next day no physician spoke with us until around 5 pm.  The physician seeing my Dad at that time informed us (me by phone) that this was a followup since my Dad had been seen by their group the previous night.  I informed him that the previous physician had neither examined my Dad nor relayed any type of medical plan.  I am grateful that this physician took the time to hear his background, to apologize for his colleague and develop a plan that helped my Dad improve.  At the same, I am bitter, but perhaps enlightened, by the fact that the previous physician did not care or even act like he did.

What I have learned from the other side (the patient’s side) of the bed:

  1. The hospital that I work at is exceptional (Children’s Healthcare of Atlanta).  The doctors and nurses that I work with care deeply about doing their best every single day.  In fact, this attitude permeates the hospital and includes child life specialists, feeding therapists, ward secretaries, and even maintenance staff.  This is probably true for a lot of children’s hospitals.
  2. In many hospitals, you really have to look out for those you care about to lower the chances that their team will overlook important steps.  Even in really good hospitals, this is important.
  3. While skepticism comes natural for those of us in health care, many family members rely too heavily on the expertise of their nurse or physician.  Engage your health care providers to make sure that they understand what you are trying to tell them.  If the situation changes, make sure your team is updated.
  4. Medication errors are so common.  If you don’t bring the medications with you, make sure you know the dose, the route, and the frequency/timing.  Take pictures of the pill(s) and the prescription or write out all of the prescriptions.  Do not be afraid to ask the nurse to show you the “MAR” (medication administration record) so that the reordered medications match up with those that are taken at home.
  5. Small gestures, like getting a comfortable chair for a family member, can make a big difference.
  6. If you are a physician determined to stay on the sidelines, you may regret that decision.

For physicians/healthcare providers reading this blog, what stories have prompted you to jump from the ‘sidelines back onto the field?’  What advice would you add for families? For nonhealthcare providers reading this blog, what suggestions would you offer?

Related blog posts:

A 6-Year Study of Amitriptyline, Escitalopram, and Functional Dyspepsia

A recent theme on this blog has been the difficulty of studying inexpensive therapies.  The issue is that there are not strong incentives for pharmaceutical companies to invest in treatment trials when the potential for profits is meager.  Fortunately, there are other funding mechanisms.  A recent study (NJ Talley et al. Gastroenterol 2015; 149:340-9), sponsored by the NIH, still was challenging.  One of the reasons is that when medicines are already approved by the FDA that can be used off-label and this can undermine recruitment.

Due to difficulty with enrollment, the researchers of this current study expanded to a total of 8 sites (initially 5) and settled for 292 patients rather than their goal of 400.  After a baseline washout of 2- to 4-week with assessment, patients with Rome II criteria for functional dyspepsia (FD) were assigned in a randomized, double-blind trial to either placebo, amitriptyline 50 mg, or escitalopram 10 mg for 10 weeks.

Exclusion criteria:

  • History of depression and not using antidepressants.
  • Anxiety
  • Symptom resolution with antisecretory therapy (eg. proton pump inhibitors)
  • History of esophagitis, ulcers, or organic gastrointestinal disease
  • Major physical illness
  • Drug/alcohol abuse
  • Nonsteroidal anti-inflammatory drugs

Inclusion criteria:

  • Required: previous normal EGD within 5 years
  • 18-75 years

Key terms:

  • “ulcer-like dyspepsia” pain centered in the upper abdomen is the predominant symptom
  • “dysmotility-like dyspepsia” non pain symptom predominates: fullness, bloating, early satiety, and nausea

Key Findings:

  • Adequate relief was noted in 40% of placebo-treated, 53% of amitriptyline-treated, and 38% of escitalopram-treated patients
  • Ulcer-like FD given amitriptyline were >3-fold more likely to report adequate relief compared with placebo for odds ratio of 3.1
  • Delayed gastric emptying was associated with being less likely to report adequate relief with an odds ratio of 0.4
  • Safety: while adverse effects were common, “there was no overall difference between the 3 arms (except in neurologic symptoms, with highest rates in the escitalopram arm) suggesting that…TCAs will be generally well tolerated at low doses.”

The associated editorial (pages 270-2) notes that the overall benefits of amitriptyline were modest.  They also reviewed the NORIG study (JAMA 2013; 310: 2640-9) which examined nortriptyline and placebo for idiopathic gastroparesis (n=130).  Similar to this study from Talley et al, the NORIG study found a lack of response to tricyclic antidepressants in this cohort with delayed gastric emptying and dysmotility; “the lack of efficacy in patients with dyspepsia with delayed gastric emptying suggests the possible utility of scintigrahic testing to select patients” for amitriptyline therapy.

Bottomline: This well-designed study supports the use of amitriptyline, but not escitalopram for the use of FD, mainly in those with pain-predominant symptoms.

Related blog posts:

Mt Washburn, Yellowstone

Mt Washburn, Yellowstone

Improving ER Performance for Suspected Constipation

While the ultimate goal would be for most constipation to be prevented or managed by primary care physicians, the reality is that a lot of children are seen in the ER setting.  Particularly in the hospital setting, many practitioner’s have relied on abdominal xrays (AXRs) and this practice has been criticized previously (What’s Wrong with Ordering an AXR for Constipation in the …).

It is gratifying that efforts are underway to reverse this tendency.  A recent study (J Kurowski et al. J Pediatr 2015; 167: 706-10) document the effect that a 10 minute training session can have.

In this retrospective chart review, the researchers examined a 2 month baseline period and then a 2 month period after institution of a 10-min educational module for ER healthcare providers.  The module included the following:

  1. Rome III criteria for constipation  -at least 2 criteria weekly for >2 months:
    • ≤2 defecations in the toilet per week
    • at least 1 episode of fecal incontinence per week
    • history of retentive posturing or excessive volitional stool retention
    • history of painful or hard bowel movements
    • presence of a large fecal mass in the rectum
    • history of large stools which may obstruct toilet
  2. Review of the lack of utility of abdominal radiographs
  3. Use of rectal exam

Patients were identified who were discharged from the ER (without hospital admission)  with a diagnosis of constipation and with a chief complaint of abdominal pain.  In the baseline period, there were 105 patients and in the followup period, there were 91 patients.

Key findings:

  • Digital exams increased: 22.9% —>47.3%
  • AXR decreased: 69.5% –>26.4%

This study has numerous limitations; these include retrospective study and patient selection. Nevertheless, it makes several useful points.  If constipation is suspected, better care at a lower cost can be achieved by including a digital exam.  The authors note that “there is no strong evidence to support the utility of radiographs for this diagnosis [constipation] or even reliable standards to evaluate the normal stool burden across different ages.”

My take: The lessons from this study are applicable to primary care physicians and gastroenterologists as well as to ER physicians.  While this educational module is a good start, if I were designing a module, I would include information on irritable bowel syndrome which is often confused with isolated constipation.

Related blog posts: