(dissenting).
I dissent. I am of the opinion that the Industrial Commission was arbitrary in disregarding the evidence before it pertaining to the cause of McWilliams’ disability and demise and also that it was error for the Commission to base its findings in whole or in part on the report of the first medical panel.
Following his injury on July 22, McWil-liams’ physical condition continued to deteriorate and he died on March 3, 1965. The record before the Commission shows that McWilliams, age 38, was strong and healthy and had suffered no physical disability except that some years prior he had suffered a back disability which had been repaired by a spinal fusion. The testimony of Mrs. McWilliams, as well as the testimony of other acquaintances, showed that McWilliams was a hard worker and that he not only worked on his job, but that he also assisted other friends, relatives and neighbors in various projects in his line of work.
Following the accident on July 22, 1964, McWilliams continued to suffer from extreme headaches, vertigo and syncopal attacks resulting in total loss of consciousness.
The evidence shows that McWilliams suffered from functional heart disease which eventually resulted in his death. His disability consisted of a slowing-down of his heart to such an extent that certain movements of his body, such as turning his head, resulted in his becoming dizzy and on occasion losing consciousness. In an effort to correct and improve the function of the heart, a cardiac pacemaker was surgically implanted in McWilliams’ heart muscle on February 26, 1965. McWilliams’ condition improved for a few days but he nevertheless died at his home the morning following his discharge from the hospital.
The Commission pursuant to statute, referred the matter to a medical panel to study the matter and to make a report and findings. An objection was made to the report of the panel on the ground of disqualification of one of its members. Another panel was appointed by the Commission to study the matter and to make findings.
The Commission was called upon to determine the factual issue as to whether or not the heart malfunction suffered by Mc-Williams was directly related to or caused by the injury suffered on July 22, 1964.
In support of their claim the plaintiffs submitted the deposition of Dr. Franklin C. David, a general practitioner, who resides in Boise, Idaho. Dr. David was of the opinion that it was reasonably probable that the injury suffered by McWilliams affected the vagus nerve and that an over-stimulation of that nerve would tend to override the built-in pacemaker of the heart and interfere with the heart’s conduction *270system. The plaintiffs also offered the testimony of Dr. Jerome Burton by way of a deposition which was made a part of the record. Dr. Burton was an orthopedic surgeon who had practiced that specialty in Boise, Idaho for a period of 25 years. Dr. Burton was of the opinion that it was probable that the injury suffered by Mc-Williams resulted in an interference with the conduction mechanism of the heart, resulting in right bundle branch block, which in turn resulted in the slowing of the heart. It was his opinion that McWilliams died from a stoppage of the heart from an unopposed vagal influence upon the organ. He was further of the opinion that the neck and head injury knocked out the sympathetic stimulus, and that without opposition and possibly from irritation of the vagus nerve by reason of the skull fracture, the slowing-down mechanism of the heart was allowed to run out of bounds and eventually stopped the heart completely.
Following McWilliams’ death an autopsy was performed. The autopsy revealed no evidence of a prior or pre-existing heart disease. The report of the autopsy was before the Commission and the medical panel.
• The second medical panel made the finding-as follows:
The panel finds that it is highly probable that Mr. McWilliams had organic heart disease involving the conduction system of the heart which antedated his fall and alleged accident and which was responsible for the fall, and the subsequent progression of the heart disease leading to his death. Further, the panel finds no evidence that the inhalation of lacquer fumes, as alleged, was responsible for the heart disease or its consequences.
The plaintiffs objected to the report of this medical panel and a further hearing was had before a referee appointed by the Commission. At the hearing Dr. James F. Orme, chairman of the medical panel, appeared as a witness and testified before the referee. On cross-examination Dr. Orme was asked to relate the evidence on which he based his conclusion that McWil-liams was suffering from a heart ailment prior to July 22, 1964, when he fell and suffered a head injury. Dr. Orme answered to the effect that his conclusion was based on the fact that the hospital record made at the time of McWilliams’ admission following his head injury indicated that McWilliams had complained of dizziness prior to that date. It would appear that this statement was made by a fellow worker, and not by the decedent. When asked how important this report of prior dizziness was in the formulation of his opinion respecting McWilliams’ pre-exist-ing heart condition, Dr. Orme replied that it was not very important: Dr. Orme' further testified that the only evidence contained in the report of the autopsy which' *271would indicate a heart disease was the infarction around the installed pacemaker.
The statute1 authorizing the Commission to submit problems to medical panels for report and findings provides in part as follows :
* * * If no objections are filed * * * the report shall be deemed admitted in evidence and the commission may base its findings and decision on the report of the panel, but shall not be bound by such report if there is other substantial conflicting evidence in the case which supports a contrary finding by the commission. If objections to such report are filed it shall be the duty of the commission to set the case for hearing * * * to determine the facts and issues involved, and at such hearing any party so desiring may request the commission to have the medical panel or any of its members present at the hearing for examination and cross-examination. Upon such hearing the written report of the panel may be received as an exhibit but shall not be considered as evidence in the case except in so far as it is sustained by the testimony admitted. * * *
It would appear that the legislature by use of the language above quoted intended that the report of the panel of medical experts should be considered on the same basis as expert testimony received in any judicial or quasi-judicial proceeding. The opinion of an expert must be based upon facts, either proved or assumed. An expert opinion based upon a nebulous factual foundation is of little value in arriving at the truth of a proposition. The value of an opinion of an expert is dependent upon and is no stronger than the facts on which it is based.2
I am of the opinion that the Commission erred in adopting a report of the medical panel which appears not to have been based on an evidentiary foundation.3 I am of the opinion that the first medical panel being disqualified by the Commission and a second panel appointed it was error on the part of the Commission to consider the report of the first panel and to base its findings thereon at least in part.
It should be noted that the opinion of the Court quotes from the testimony of Dr. Kilpatrick who testified on behalf of the “disqualified” panel.'
I would reverse.
CALLISTER, J., concurs in the dissenting opinion of TUCKETT, J.. Sec. 35-1-77, U.C.A.1953.
. Hamilton v. Huebner, 146 Neb. 320, 19 N.W.2d 552, 163 A.L.R. 1.
.Nicholson v. Industrial Comm., 15 Utah. 2d 176, 389 P.2d 730.