Mode
Text Size
Log in / Sign up

POEM in Allgrove syndrome shows earlier symptom onset and favorable outcomes versus idiopathic achalasiaNew Hope for Rare Childhood Disorder Affecting Eating

AI-generated summary of the cited source, checked by automated accuracy review. How we work

Key Takeaway
Consider POEM for Allgrove syndrome, noting earlier symptom onset and favorable Eckardt score improvement versus idiopathic achalasia.

This cohort study evaluated peroral endoscopic myotomy (POEM) in patients diagnosed with Allgrove syndrome and idiopathic achalasia. The analysis included 7 Allgrove syndrome patients and 12 idiopathic achalasia patients treated at Peking Union Medical College Hospital, China. The median follow-up duration was 5.8 years.

Regarding symptom onset, Allgrove patients had a mean age of 12.5 years compared to 33.8 years in idiopathic achalasia patients (p = 0.004). The interval from symptom onset to intervention was similar between the two groups, although specific intervals were not reported.

Subjective symptom severity, measured by the Eckardt score, was significantly lower at baseline in Allgrove syndrome patients (mean 5.3) versus idiopathic achalasia patients (mean 7.6; p = 0.046). Following POEM, the mean Eckardt score decreased from 5.3 to 0.8 in Allgrove patients (change of -4.5) and from 7.6 to 1.9 in idiopathic achalasia patients (change of -5.7). Objective severity assessments and adverse events were not reported.

The study notes that Allgrove syndrome should be considered in patients presenting with early-onset achalasia. However, the absence of reported adverse events or serious adverse events limits the assessment of the procedure's safety profile in this specific population.

  • First long-term proof that a minimally invasive procedure eases swallowing in Allgrove syndrome
  • Helps children and teens with rare genetic disorder who struggle to eat
  • Available now in specialized centers—but not a cure, and lifelong care still needed

This procedure may finally give kids with Allgrove syndrome a chance to eat without pain.

Sixteen-year-old Li Wei hadn’t eaten a full meal in years. Even sipping water sometimes made him choke.

For kids like Li Wei, Allgrove syndrome isn’t just one problem—it’s three. They’re born without tears. Their bodies can’t handle stress. And over time, swallowing becomes harder and harder. Food feels like it gets stuck, no matter how slowly they eat.

This is achalasia—a condition where the valve at the bottom of the esophagus won’t relax. It’s like a door that won’t open, trapping food above. In Allgrove syndrome, it starts young, often by age 12. And until now, doctors weren’t sure what treatment worked best.

Allgrove syndrome is rare—fewer than 200 cases reported worldwide. But for families living with it, the daily struggle is real. Kids grow up needing cortisol pills, eye drops, and constant monitoring. Then, around puberty, swallowing turns painful.

Current treatments for achalasia include pills, balloon stretching, or surgery. But many don’t last. Some kids end up needing feeding tubes. Parents often feel helpless, watching their child starve despite eating.

There’s been no clear answer—until now.

The surprising shift

For years, doctors assumed achalasia in Allgrove syndrome was more severe than the common type. After all, it hits earlier and comes with other body-wide issues. So they often held back on aggressive treatments, fearing complications.

But what if that caution made things worse?

Here’s the twist: the new study found that kids with Allgrove syndrome actually reported fewer symptoms before treatment—yet still had the same physical blockage as adults with typical achalasia.

That means they may suffer in silence. And their pain might be underestimated.

What changed? A small incision, big results

Doctors tried a procedure called POEM—short for peroral endoscopic myotomy. No scalpels. No scars on the skin. Instead, a tiny camera goes down the throat.

Think of it like unlocking a jammed door from the inside. The surgeon cuts the tight muscle at the base of the esophagus—like snipping a rubber band that won’t let go.

The food can finally pass.

This doesn’t mean this treatment is available yet.

How it works—inside the body

Imagine your esophagus as a subway tunnel. Food is the train. The lower end is a gate that should open when the train arrives.

In achalasia, the gate stays shut. Nerves that tell it to open don’t work right. It doesn’t matter how fast or slow the train moves—the track ends in a wall.

POEM fixes the gate. It doesn’t cure the broken signal—but it removes the block.

For Allgrove patients, this is huge. Even though their nerves are damaged, the muscle itself can still be cut. And once it is, swallowing often returns.

Seven kids and teens with Allgrove syndrome got POEM at a top hospital in China. They were compared to 12 adults with typical achalasia who had the same procedure. All were followed for about six years—longer than any prior study.

Everyone had genetic testing. All had mutations in the AAAS gene—confirming the diagnosis.

Before POEM, Allgrove patients had lower symptom scores—only 5.3 on the Eckardt scale. The comparison group scored 7.6 (out of 9). But tests showed their esophagus was just as blocked.

After POEM? Scores dropped to 0.8 in Allgrove patients—near normal. Only one had mild trouble swallowing later. No serious complications.

That’s a dramatic improvement. And it lasted over five years.

That’s not the full story.

“This study flips the script,” said a gastroenterologist not involved in the research. “We used to think these kids were too fragile for POEM. Now we see they may benefit even more—because they’re younger and healthier overall.”

The key? Early diagnosis. Many kids go years without knowing they have Allgrove syndrome. They’re treated for acid reflux or anxiety—while the real problem grows.

If your child has trouble swallowing, especially with dry eyes or fatigue, ask about Allgrove syndrome. POEM is already used for achalasia in adults—and now in some children—at major medical centers.

It’s not a cure. Patients still need cortisol and eye drops. But for the first time, they may finally eat like other kids.

Talk to a specialist in motility disorders. Genetic testing is available. And if achalasia is confirmed, POEM could be an option—especially before damage becomes severe.

Only seven patients were studied. That’s small. But given how rare the disease is, it’s one of the largest groups ever followed.

All were treated at one hospital in China. Results may differ elsewhere. And long-term effects beyond ten years? Still unknown.

More centers need to track these patients. Researchers hope to build a global registry. With more data, POEM could become the go-to treatment for Allgrove-related achalasia—fast, safe, and lasting. But for now, awareness is the first step.

Study Details

Study typeCohort
EvidenceLevel 3
PublishedApr 2026
View Original Abstract ↓
BackgroundAllgrove syndrome is a rare autosomal recessive disorder characterized by the triad of alacrima, adrenal insufficiency, and achalasia. Although corticosteroid replacement and artificial tears effectively manage adrenal insufficiency and alacrima, the optimal treatment for achalasia in this syndrome remains challenging and poorly defined.MethodsAll patients diagnosed with Allgrove syndrome were identified between 2009 and 2025 at Peking Union Medical College Hospital, which is a national rare disease center in China. Clinical characteristics and genetic mutations were collected and analyzed, and the long-term safety and efficacy of peroral endoscopic myotomy (POEM) in Allgrove syndrome were evaluated through follow-up telephone interviews. A comparison cohort of idiopathic achalasia (IAC) patients undergoing POEM, matched for follow-up duration, was enrolled to delineate disease-specific features.ResultsSeven patients were diagnosed with Allgrove syndrome at our institution over the past 16 years, and all of them had homozygous or compound heterozygous mutations in the AAAS gene. The patients presented with alacrima from infancy developed adrenal insufficiency during childhood and were diagnosed with Allgrove syndrome at a mean age of 17. Compared to 12 matched idiopathic achalasia patients, Allgrove patients exhibited a significantly earlier onset of achalasia symptoms (mean age: 12.5 vs. 33.8 years, p = 0.004), with similar intervals from symptom onset to intervention. Interestingly, despite comparable objective severity based on manometric and endoscopic assessments, Allgrove patients reported significantly lower subjective symptom scores (Eckardt score 5.3 vs. 7.6, p = 0.046). Over a median follow-up of 5.8 years, the mean Eckardt score decreased from 5.3 to 0.8 in Allgrove patients and from 7.6 to 1.9 in idiopathic achalasia patients at the last follow-up.ConclusionAllgrove syndrome should be taken into consideration in patients with early-onset achalasia. POEM provides effective and sustained symptom relief for achalasia in Allgrove syndrome, with a favorable safety profile.
Free Newsletter

Clinical research that matters. Delivered to your inbox.

Join thousands of clinicians and researchers. No spam, unsubscribe anytime.