When a Repair Falls Short: Fistula and VPI Revision
What are the two main ways a repair falls short, and how does the surgeon fix each one?
💡 A repair can leave a hole (fistula) or a leaky valve (VPI), and choosing a VPI revision means trading speech benefit against airway risk.
Prerequisite check
- On the side the nostril is flattened and widened, the ala is pulled down and out, and the is short and leans toward the non-cleft side.
- Inside, the was deviated in about 92 percent of CL/P patients on CBCT, versus about 80 percent of non- controls.
What you will learn
Goal: Explain (and how its rate rises with ) and , and compare versus as revisions.
- A is a residual or recurrent hole between the mouth and nose after repair; the pooled mean rate is about 9.94 percent and rises with .
- Fistula rate climbs from about 2 percent in Veau I to about 12.5 percent in Veau IV, with about 8.3 percent.
- is the failure of the repaired soft to seal against the throat during speech, producing and .
- Two revisions are common: a blocks the central leak but risks , and a narrows the opening; neither is clearly .
Model: Fistula rate by Veau class, and two VPI revisions
A is a residual or recurrent hole between the mouth and the nose after repair. The pooled mean fistula rate is about 9.94 percent, and it rises with : about 2 percent in Veau I (soft palate only), 7.3 percent in Veau II, 8.3 percent in (complete lip, , palate, which is Mateo's class), and 12.5 percent in Veau IV (complete ). The rate also depends heavily on setting: in one comparison it was 2.5 percent at a US tertiary center but 35.4 percent on humanitarian surgical missions, with older age and higher Veau class as risk factors. That setting difference is an equity point, not a biology point.
is the failure of the repaired soft to seal against the back of the throat during speech. When the valve leaks, air escapes into the nose, producing and audible . In one 239-patient cohort using the Sommerlad technique, the VPI rate was 52.7 percent and nearly half (49.8 percent) needed speech-correcting surgery; severe , a wide over 10 mm, and an all predicted more speech surgery.
When speech therapy alone is not enough and there is a structural gap, two revisions are common. A attaches throat-wall to the soft , blocking the central leak and leaving two side ports for breathing; in one 109-patient series about 79 percent improved in , but 6.4 percent developed from the new obstruction. A builds a dynamic muscular ring from the tonsil pillars to narrow the opening. There is no clearly single procedure; the choice is guided by the patient's closure pattern and gap size.
Explore (work the model before reading on)
- What is the fistula rate for a like Mateo's?
- What symptom does air escaping through the nose during speech produce?
- Fistula rate climbs from Veau I to Veau IV. What does that tell you about how much must be closed and how risk relates to it?
- The blocks the central leak well but caused sleep apnea in 6.4 percent. State the trade-off the surgeon is balancing.
- Mateo is a , and a fistula is a for needing speech surgery. Predict whether the team should watch his speech closely, and why.
Guided notes
Fistula
- Fistula rate rose from about 2 percent in Veau I to about ____ percent (12.5) in Veau IV.
- Rates are much higher in lower-resource settings, which is an ____ point, not a biology point.
VPI
- is the failure of the soft to ____ (seal) against the throat during speech, causing .
Two revisions
- A pharyngeal ____ bridges to throat and blocks the central leak, but risks / sleep apnea.
- A builds a narrowing ____ from the tonsil pillars; neither revision is clearly , so the choice depends on the gap.
Reading the Research
- Skim the title and abstract first to get the gist.
- Circle the one sentence that states the main claim.
- Box the evidence the authors give for that claim.
- Mark one sentence that confuses you, and move on.
Vocabulary (the same words your classes use)
Vetted readings for this lesson
- Tache & Mommaerts 2019, Frequency of Oronasal Fistulation After Primary Cleft Palate Repair (Cleft Palate Craniofac J)
- Hofman et al. 2024, Long-Term Speech Outcomes After Sommerlad Palatoplasty (Clin Oral Investig)
- de Blacam et al. 2022, The Case for the Pharyngeal Flap in Velopharyngeal Dysfunction (J Plast Reconstr Aesthet Surg)
Track your progress today
Check these off as you work through the lesson, then submit. This tells Mr. Mendoza how you're doing so he can help the class. It does not replace turning in your producible.
Use the code Mr. Mendoza gave you, not your name. Saved on this device.
- Read the Model and answered the Explore questions.
- Filled in the guided notes in my own words.
- Defined the new vocabulary with an example.
- Built the producible: Role-play the team meeting for a patient with confirmed VPI and a small central gap who already has a narrow airway at night. In three or four sentences, recommend a pharyngeal flap or a sphincter pharyngoplasty, and justify it by weighing speech benefit against airway risk using the numbers from the models.
- Wrote my Claim, Evidence, and Reasoning exit ticket.
Exit ticket (Claim, Evidence, Reasoning)
- Claim: A repair can fall short in two distinct ways.
- Evidence: Name the two complications and give one number for each (a fistula rate and a VPI consequence).
- Reasoning: Explain why higher raises both risks, and why choosing a VPI revision means trading speech benefit against airway risk.
| Criterion | Proficient | Developing | Beginning |
|---|---|---|---|
| Complete | Every required part of the artifact is present and filled in. | Most parts are present, but one is missing or left blank. | Several parts are missing. |
| Accurate | The science and data are correct and match the evidence. | Mostly correct, with a small factual slip. | Key science or data is wrong. |
| Scientific reasoning (CER) | States a claim, backs it with specific evidence, and explains the reasoning. | Has a claim and evidence, but the reasoning is thin or missing. | Gives an answer with no evidence or reasoning. |
| Professional communication | Clear, organized, and labeled the way a clinician or scientist would write it. | Readable but disorganized or missing labels. | Hard to follow. |
| Submitted | Turned in the right way (Schoology for routine work) and confirmed. | Turned in, but in the wrong place or unconfirmed. | Not turned in. |
- CompleteProficient: Nothing is left blank: the model fills every part of "Role-play the team meeting for a patient with confirmed VPI and a small central gap who already has a narrow airway at night. In three or four sentences, recommend a pharyngeal flap or a sphincter pharyngoplasty, and justify it by weighing speech benefit against airway risk using the numbers from the models.".
- AccurateProficient: Every number and claim matches the case evidence.
- Scientific reasoning (CER)Proficient: It names a claim, cites the specific evidence, and explains the reasoning, not just the answer.
- Professional communicationProficient: It is organized and labeled like a real chart note.
- SubmittedProficient: It would be turned in on Schoology and confirmed.
Where this leads: careers
What's next: We answered what goes wrong after repair and how it is fixed. But Mateo has now seen the surgeon, the orthodontist, the , the ENT, and more, across many years. Who does what, and when, across his whole childhood, so nothing is missed and nothing is repeated? We chase that next time.