Louise Higgins brought this negligence action against Delta Elevator Service Corporation claiming that her preexisting multiple sclerosis was exacerbated as a result of injuries she suffered when she tripped and fell while alighting from an elevator that did not level properly after being serviced by Delta. In a special verdict, the jury found that Delta was negligent, but that Delta’s negligence was not a direct cause of an aggravation or acceleration of Higgins’s multiple sclerosis.
Facts. The facts, as related at trial, are as follows. In June of 1986, Louise Higgins was diagnosed with multiple sclerosis. At that time, and for approximately six years thereafter, her symptoms were mild and intermittent, comprised primarily of heaviness in her right leg and an occasional backache. Higgins’s multiple sclerosis did not limit her range of activities in any way. On May 21, 1992, Higgins tripped and fell as she was exiting from elevator no. 27 at the John Hancock Tower in Boston when the elevator misleveled, landing between one and three inches below the lobby floor. The following day, Higgins’s multiple sclerosis symptoms worsened significantly and, by the time of trial, she was unable to walk without assistance and had reduced her work hours from forty hours per week to twelve hours per week.
Dr. Charles M. Poser, a neurologist at the Beth Israel Hospital who specializes in the treatment of persons with multiple sclerosis, testified that concussional trauma of the sort suffered by Higgins can cause an exacerbation of preexisting multiple sclerosis. Dr. Poser testified that when concussional trauma causes an alteration of the blood brain barrier it can disrupt the myelin sheath which, in turn, impairs the flow of nerve impulses between the brain and the rest of the body. There was testimony from the defendant’s experts that Dr. Poser’s conclusion as to causation is not generally accepted by other neurologists specializing in multiple sclerosis. Delta accordingly challenged the admission of Dr. Poser’s opinion testimony during voir dire and attacked it through vigorous cross-examination at trial. In his final jury charge, the trial judge instructed the jury that it was Higgins’s burden to prove causation by expert testimony, and to demonstrate the reliability of her expert’s opinion. He instmcted the jury that they “must determine whether the reasoning or methodology underlying the testimony is scientifically valid and applicable to the facts at issue” and directed them to look at
After the jury verdict, in which Delta was found negligent in its maintenance or repair of elevator no. 27,
1. The plaintiff’s appeal.
a. Causation instruction. In instructing the jury on the evaluation of the medical testimony on causation, the judge listed several factors' articulated in Daubert v. Merrell Dow Pharmaceuticals, Inc.,
In Commonwealth v. Lanigan,
The judge must play a “gatekeeper” role in determining whether to admit such evidence. In doing so, the judge must preliminarily assess “whether the reasoning or methodology underlying the [expert] testimony is scientifically valid and . . . whether that reasoning or methodology properly can be applied to the facts in issue.” Ibid., quoting from Daubert v. Merrell Dow Pharmaceuticals, Inc.,
Here, the judge did act as gatekeeper. He determined both that the reasoning or methodology underlying Dr. Poser’s
As an initial matter, in reviewing the propriety of the challenged instruction, “we read ‘the charge as a whole, and [do] not . . . scrutiniz[e] bits and pieces removed from their context.’ ” Commonwealth v. Hill,
Here, the judge “gave a comprehensive and correct instruction on the evaluation of expert testimony,” explaining to the jury that in determining what weight to give to an expert opinion they should consider the facts or materials on which each opinion was based.
Finally, it is to be remembered that the trial judge’s “gatekeeper” assessment of such expert medical evidence for purposes of determining its admissibility is a preliminary one. Daubert v. Merrell Dow Pharmaceuticals, Inc.,
b. Exacerbation instruction. Higgins also complains that she was entitled to a so-called Wallace instruction regarding the alleged exacerbation of her multiple sclerosis by her fall on May 21, 1992. Wallace v. Ludwig,
2. The defendant’s cross appeal. Having ruled in Delta’s favor on the issues above, we need not address Delta’s arguments on its cross appeal.
Judgment affirmed.
Notes
Clyde Gober, an elevator expert and engineer, testified on behalf of Higgins that Delta was negligent in its maintenance and operation of elevator no. 27. The elevator had been taken out of service from May 13 through May 20 or 21, 1992, during which time Delta had replaced the hoist ropes on the elevator. Gober testified that Delta was negligent in failing to ride the elevator following the replacement of the ropes and in failing to protect the selector tape during the rope replacement operation. The tape, together with the selector, controls the leveling of the elevator.
The judge instructed the jurors that in order to evaluate the medical testimony on causation, “You may consider [evidence] bearing on peer review and publication of the theory or theories, testing of the theory or theories, the level of acceptance of the theory or theories and anecdotal evidence supporting or not supporting the theory or theories ... as persuasive on the issues of whether reliability has been established and give it what weight you feel it is fairly entitled to be given.”
Higgins does not, however, dispute the fact that it is her burden to establish the elements of her negligence action, including causation, see Jean W. v. Commonwealth,
In Daubert v. Merrell Dow Pharmaceuticals, Inc.,
Ultimately, because we conclude that the challenged instruction was not reversible error, we need not and do not reach the issue of whether Dr. Poser’s causation testimony was properly admitted. Compare Vassallo v. Baxter Healthcare Corp.,
The judge instructed the jury that “[n]o matter how good an expert witness is, that expert witness is no better — the opinion is no better than the facts on which the witness bases the opinion . . . when you are deciding or assessing the testimony . . . you must carefully scrutinize the facts on which that person’s opinion rests . . . you simply disregard any opinion that’s based upon facts which are not proven or facts that you find not to be true.”
In Wallace, the court held that “where an injury arising from a cause which entails liability on the defendant combines with a preexisting or a subsequently acquired disease to bring about greater harm to the plaintiff than would have resulted from the injury alone, the defendant may be liable for all the consequences. If the injury causes or contributes to cause the development of a preexisting disease, the person liable for the injury is liable also for the resulting aggravation. The wrongdoer may be held responsible for the harmful results of the combined effects of his wrongful act and the disease.” Wallace v. Ludwig, 292 Mass, at 256.
