What to Look for in a Pediatric Critical Care Expert Witness

1. Why Credentials Alone Aren't Enough

When a pediatric critical care malpractice case crosses your desk, your first instinct is often to find someone with impressive credentials — board certification, academic affiliation, a publication list. Credentials matter, but they're the beginning of your evaluation, not the end of it.

The pediatric intensivist who trained at a prestigious children's hospital twenty years ago, published a handful of papers in the early 2000s, and now consults occasionally while running a private pediatric practice is not the same expert as the physician who walked out of a PICU yesterday after managing a child on ECMO with refractory septic shock. Both are board-certified. Only one can credibly testify about what the standard of care required in your case.

Opposing counsel knows this. The first line of cross-examination in any critical care case is: How recently did you personally manage a patient like this? When was the last time you ran ECMO? How many CRRT circuits have you managed this year? An expert who can't answer those questions with specificity is a liability, not an asset.

2. The Active Practice Requirement

Standards of care evolve. The Surviving Sepsis Campaign guidelines for children have been updated multiple times in the past decade. ECMO indications have expanded. The ARDS network protocols that governed ventilator management in the early 2000s have been substantially revised for pediatric patients. An expert who left active clinical practice five years ago may not reflect current standards — and a skilled defense attorney will exploit that gap aggressively.

For pediatric critical care cases specifically, active practice means more than seeing critically ill children occasionally. It means:

• Regular, ongoing responsibility for PICU patients — not as a consultant, but as the primary attending
• Current familiarity with the medications, dosing calculations, and hemodynamic targets applicable to the case
• Current institutional experience with the specific modality at issue (ventilator management, ECMO, sedation protocols, vasopressor selection)
• Awareness of the most recent published guidelines and evidence — including any controversies or evolving standards that may have applied at the time of the event in question

When you are evaluating a potential expert, ask not just whether they are "active" but what their practice looks like on a typical week. Ask how many patients they manage personally. Ask whether they supervise residents or fellows — which itself indicates a level of institutional recognition of their expertise.

3. Subspecialty Depth vs. General Pediatrics

Pediatric critical care medicine is a subspecialty requiring fellowship training beyond general pediatrics. A general pediatrician, a pediatric hospitalist, and a pediatric intensivist are not interchangeable for litigation purposes — even if all three are board-certified in pediatrics.

The subspecialty distinctions matter because cases that reach litigation typically involve the most complex, highest-acuity clinical scenarios: children who were critically ill, who required interventions beyond the scope of general inpatient pediatrics, and whose outcomes were catastrophic. The expert who testifies about the standard of care in those cases must practice at that level.

A useful test: the "Monday morning" question

Ask any potential expert: What did you do this past Monday morning? If the answer involves PICU rounds, ventilator management decisions, vasopressor titration, or a family conversation about prognosis in a critically ill child — that is the right expert. If the answer involves a well-child clinic or an outpatient follow-up schedule, you may be looking at the wrong person regardless of their CV.

Dual certification: when it matters

Some PICU cases involve pulmonary components — particularly respiratory failure, ARDS, and ventilator management. For those cases, an expert with dual board certification in pediatric pulmonology and pediatric critical care has a distinct credibility advantage. Pediatric pulmonologists who also practice critical care can address both the respiratory physiology and the intensive care management with equal authority — reducing the need for multiple experts and narrowing the target surface for Daubert challenges.

4. High-Acuity Modalities: ECMO, CRRT, and HFOV

If your case involves extracorporeal membrane oxygenation (ECMO), continuous renal replacement therapy (CRRT), or high-frequency oscillatory ventilation (HFOV), the expert requirements become significantly more specific. These are not broadly available competencies. Most pediatric intensivists have limited experience with at least one of them.

ECMO

ECMO is available at approximately 300 centers worldwide. Most children's hospitals that have ECMO programs run relatively low volumes — single-digit cases per year at smaller programs. Expert witnesses who claim ECMO expertise but work at a low-volume center, or who have not personally initiated and managed ECMO circuits, face obvious vulnerability under cross-examination.

Critically: at many ECMO centers, the program is managed by a specialized perfusionist team with physician oversight. An intensivist who oversees ECMO without personally managing circuit decisions has a different level of expertise than one who independently manages all ECMO parameters. Know what your expert's specific role is, not just whether their institution has ECMO.

CRRT

Continuous renal replacement therapy in critically ill children involves acute kidney injury management, electrolyte balance, anticoagulation, and drug-dosing adjustments that are managed very differently than in adults. At most children's hospitals, CRRT is co-managed by nephrology and critical care. At a small number of PICUs, it is managed entirely by the intensivist without subspecialty input — a level of experience that produces fundamentally different testimony.

HFOV

High-frequency oscillatory ventilation is used for severe respiratory failure — typically pediatric ARDS, pulmonary hypertension with oxygenation failure, or specific post-surgical scenarios. The indications, initial settings (mean airway pressure, frequency, amplitude), and management strategy for HFOV are not universal knowledge. Many PICUs use HFOV rarely if at all. An expert at an institution where HFOV is a standard, frequently used modality has a meaningfully different claim to expertise.

5. Why Plaintiff/Defense Balance Matters

The plaintiff-only or defense-only expert is one of the easiest targets in medical malpractice litigation. If opposing counsel can demonstrate that your expert earns a significant portion of their income from one side of medical malpractice cases, the jury will hear that. And they should — it's directly relevant to objectivity.

The most defensible expert witness is one who has credibly worked both sides in roughly equal measure, and who can explain their methodology clearly enough that their opinions would be the same regardless of who retained them. This isn't just a rhetorical position — it reflects a genuinely different relationship to the clinical facts.

When you evaluate an expert, ask directly: what percentage of your cases in the last three years have been plaintiff versus defense? Ask for actual numbers, not a vague "both sides" claim. The answer will tell you a great deal about both their credibility and their potential vulnerability on cross.

6. Deposition Experience and Courtroom Performance

Testifying under oath is a skill that develops through practice. An expert who has given one or two depositions in their career will perform differently — usually worse — than one who has been deposed dozens of times across a range of case types and aggressive opposing counsel styles.

What to look for:

• Deposition count and case diversity: Not just total depositions, but across case types, venues, and opposing counsel. An expert deposed fourteen times across both state and federal cases — in plaintiff and defense matters — has developed a composure and precision that a newer expert lacks.
• Federal court experience: Federal FTCA cases (against military hospitals, VA facilities, federally qualified health centers) have specific procedural and evidentiary requirements. An expert with federal court experience brings familiarity with those demands.
• Daubert/Frye challenge history: Ask directly whether any of the expert's opinions have ever been excluded or limited under Daubert or Frye. This is required disclosure under FRCP Rule 26. An expert whose opinions have survived multiple Daubert challenges is far more valuable than one who has never faced one.
• Preparation style: Ask how the expert prepares for deposition. A serious expert will want to review all records thoroughly, understand the procedural posture of the case, and spend time on a preparation call. An expert who is "happy to wing it" is a risk.

7. Questions to Ask Before You Retain

Before committing to any pediatric critical care expert witness, go through this list explicitly. The answers will reveal more than the CV:

1. Are you currently practicing as a pediatric intensivist? If not, when did you leave clinical practice? What are the specific areas where your current knowledge may have limitations?
2. What does your average clinical week look like? How many PICU patients do you manage? What attending coverage model does your institution use?
3. Do you personally manage ECMO / CRRT / HFOV, or are those managed by subspecialty services? This is the single most important question for high-acuity modality cases.
4. What is your plaintiff/defense split over the last three years? Get specific numbers. Vague claims of working "both sides" are not enough.
5. How many depositions have you given? In what types of cases? Have you testified at trial? In federal court?
6. Have any of your opinions ever been excluded under Daubert or Frye? If so, in what case, on what grounds, and what was the ruling?
7. Are you available within my case timeline? Confirm availability for record review, preliminary opinion, report completion, deposition, and trial.
8. What is your fee structure? Get this in writing up front — hourly rates for review, report writing, deposition prep, deposition itself, and trial testimony may differ.

A pediatric critical care expert who can answer all of these questions specifically, without hedging, is the expert you want. The one who is vague, who talks around active practice, or who can't provide specific deposition counts — that's the expert who will struggle when it matters most.