California court throws out "speculative" expert testimony
Ten years after a key U.S. Supreme Court ruling, many
say judges are stricter about the expert testimony they allow.
By
Tanya Albert, AMNews staff. Aug.
4, 2003.
In a medical malpractice trial in California, physicians
admitted that leaving a retractor in a man's peritoneal cavity after a
September 2000 surgery was a deviation from the standard of care. It was
the question of how much damage the mistake caused that was left to a
jury, particularly whether the oversight contributed to an infection.
The jury's decision would rest on what medical expert witnesses had to
say. But after the plaintiff's expert witness testified, the trial court
judge told the jury to disregard the expert's testimony and threw it out,
saying the opinion was based on speculation, not science.
The judge's action is now on appeal to the California Court of Appeal,
4th Appellate District Division One.
The plaintiff claims that the trial judge overstepped his boundaries
and engaged in fact-finding when he excluded the testimony. But the
defendant doctors and the California Medical Assn., which filed a
friend-of-the-court brief in the case, say the court did the right thing.
And the CMA says other courts shouldn't be afraid to do the same if they
have doubts about expert witnesses brought forth by either side.
"The CMA wants to stop speculative testimony from being introduced,"
said Susan L. Penney, the association's legal counsel. "It leads the jury
down the wrong path."
The medical society's decision to file a brief in the case comes at a
time when doctors nationwide are calling for stricter scrutiny of medical
expert witness testimony by both the courts and the professional
organizations to which testifying physicians belong.
Physicians believe that keeping junk science out of the courtroom is
one way of helping rein in what they see as out-of-control jury awards
that have contributed to a medical liability insurance crisis.
Scientifically sound?
In the California case, Jennings v. Palomar Pomerado Health Systems
Inc. et al., the plaintiff's expert testified that the retractor left
below the patient's peritoneal cavity during abdominal surgery contributed
to an infection in the upper subcutaneous tissue and fascia, according to
court records.
Doctors discovered the infection when they went in to remove the
retractor. There was no infection in the area around the retractor.
The plaintiff's expert testified that there was "guilt by association"
even though there wasn't evidence of an infection where the retractor was
lodged, court records show. He told the jury that the omentum encased the
retractor to isolate and kill germs in the peritoneal area where it was
lodged.
The expert testified that the sutures used to close the surgical
opening could have brought the infection back up to the peritoneal area,
before the omentum was able to take care of any infection below.
As soon as he was finished testifying, defense attorneys for the
hospital and two physicians who were named in the lawsuit moved to strike
the testimony because there was no basis for the expert's opinion that the
retractor left in the man's body contributed to the infection.
The judge agreed.
He said the infection, under either explanation the expert outlined,
"would have happened anyway even if the retractor had been removed during
the original surgery," according to court records.
Plaintiffs argue that the judge engaged in fact-finding. But the
hospital, physicians and the CMA argue that the judge was just doing his
job -- keeping out speculative and unreliable testimony.
"Trial judges should not abdicate responsibility for determining the
reliability and admissibility of evidence before it may be submitted to
the jury," the CMA said in its brief. "In fact, trial courts should be
encouraged to do exactly what the court in this case did: carefully
analyze expert testimony to ensure that only well-founded, nonspeculative
expert opinions reach the jury."
Indeed, that's happening more often today than it did a decade ago.
High court defines judge's role
A 1993 U.S. Supreme Court ruling set out to keep "junk science" out of
the courtroom by asking judges to serve as gatekeepers by evaluating the
underlying science for expert witness testimony.
The high court outlined four criteria on which to base a decision:
falsifiability, error rate, general acceptance and peer review and
publication.
Federal courts now abide by the guidelines set in that case, Daubert
v. Merrell Dow Pharmaceuticals Inc. Many state courts have adopted the
guidelines as well.
"In the past 10 years, I have seen a major shift in the courtroom,"
said Richard O. Faulk, a Texas-based defense attorney who has practiced
for more than 25 years and has succeeded in getting expert witness
testimony dismissed. "There is a trend toward more rigorous standards."
In courts following those guidelines, a defense or plaintiff attorney
can ask a judge to review an expert's testimony before the trial begins
and before a jury would ever hear it.
In states where the guidelines aren't followed, including California,
courts generally follow guides established in an earlier federal appeals
court case commonly known as Frye. That ruling said the expert's
method had to be generally accepted.
Some lawyers say even if the judge isn't acting as a gatekeeper as
outlined in Daubert, junk science is still unlikely to hold sway
with the jury because cross-examination shows the flaws in the theory.
"Cross-examination is a very effective way to show that doctors aren't
what they seem to be," said Michael W. Gunzburg, a personal injury trial
lawyer in New York City. "If the doctor's theory is so far-fetched, a jury
is going to see through it."