Appeal from the Circuit Court of Lake County; the Hon. Fred H.
Geiger, Judge, presiding.
MR. JUSTICE RYAN DELIVERED THE OPINION OF THE COURT:
The arbitrator made an award to John Hartman for total permanent disability. The Industrial Commission confirmed the award and the circuit court of Lake County confirmed the Industrial Commission. The employer, Johns-Manville Corporation, appealed directly to this court. Ill. Rev. Stat. 1973, ch. 110A, par. 302(a).
John Hartman, the employee, was 47 years old in 1970. He had been employed by the Johns-Manville Corporation for 14 years. Until 1963 his duties involved checking and recording the number of pieces of material produced by other employees and various machines. In 1963 he was given a job drilling holes in blocks of material, a job which he performed until the occurrence in question on June 10, 1970.
On that date Hartman started working at 7 a.m. His job that morning was to drill four holes in each block. About 400 blocks were on a metal wheeled cart. He pushed the loaded cart from 10 to 20 feet into place beside his machine. To perform the drilling operation he had to depress a foot pedal to bore each hole. To complete the drilling of four holes in each of the 400 blocks on the cart he had to raise and lower his foot 1600 times. He also had to remove each block from the loaded cart, position it in the jig, and manually place the block and jig in the machine. The block and jig together weighed 18 to 20 lbs. After the holes were drilled, he placed each block on another cart. He finished the first cart of 400 blocks in about two hours. He then pushed the loaded cart some 12 feet to the next station and then got another cart loaded with 400 blocks and pushed it to his machine. Each loaded cart weighed approximately 1,000 lbs. He started drilling the four holes in each block from the second load. The temperature in the area where he was working was from 90 to 95 degrees and he was perspiring freely.
While Hartman was drilling the second load of blocks he felt his heart "start to beat a little faster." After about an hour of this sensation he went to the medical department. He was examined there by Dr. Davidson, who sent him to Dr. Nellins's office, where an electrocardiogram was taken and he was admitted to a hospital. While there he was given medication; he was discharged in 10 days, but he did not return to work until September 12, 1970 three months after the attack. When he returned to work, he was given a different job; however, he only worked for about three weeks, during which time he noticed that he was very weak and that he occasionally had difficulty in breathing. He was again admitted to the hospital on October 19, 1970, and on November 17 he was admitted to another hospital, where open heart surgery was performed during which two defective valves in his heart were replaced with artificial devices. He was discharged from the hospital on December 11, 1970. He has not been employed since October 16, 1970.
He is still under the care of Dr. Nellins and is taking medication. At the present time, he "weakens very fast" and has trouble breathing when he walks up a hill. He is only able to walk about a half mile, and he is able to do light work such as raking in his yard, but only for about 20 minutes at a time.
The evidence shows that when Hartman was about 12 years old he had what was then thought to be scarlet fever; however, the medical testimony in the case shows that the doctors who testified believe that it was rheumatic fever and that as a result of this illness Hartman has a rheumatic heart. When he was 19 years old, he was rejected for military service because he had a heart murmur. When he began work for Johns-Manville Corporation in 1956, he was given a physical examination and was again informed that he had a heart murmur. He has had annual physical examinations in connection with his work thereafter. He recalls that following these examinations doctors would inform him of the heart murmur. He missed very little time from work because of illness during the 14 years that he worked for this employer. However, in March of 1970 he was admitted to a hospital as an emergency patient. The diagnosis upon admission was "mitral insufficiency in mild left heart failure" and acute pulmonary infection. He remained in the hospital for three days and was off work about 10 days. About four days before June 10, 1970, he had an episode of tachycardia (excessively rapid action of the heart) which subsided spontaneously after about three days.
It is the employer's first contention that on June 10, 1970, Hartman was performing his usual duties and did nothing unusual which could have related the episode to his work. The employer contends that Hartman's disability is the result of the natural progression of a gradually debilitating disease (rheumatic heart disease). The employer also contends that the disability was not caused by an accident within the meaning of the Workmen's Compensation Act.
The reliance upon International Harvester Co. v. Industrial Com., 56 Ill.2d 84, is misplaced. Here, unlike in International Harvester Co., the onset of Hartman's disability of which he now complains is traceable to a definite time and place. If the evidence supports the conclusion of the Industrial Commission that the cause is also traceable to his employment on the date in question, he has suffered an accidental injury within the meaning of the Act. We held in International Harvester Co. that an injury is accidental within the meaning of the Act which is traceable to a definite time, place and cause and occurs in the course of employment unexpectedly and without affirmative act or design of the employee.
The resolution of this case then turns on whether some aspect of Hartman's employment caused the episode of June 10, 1970, and his resulting disability. This court was faced with a similar question in Republic Steel Corp. v. Industrial Com., 26 Ill.2d 32, which case also involved an employee with a pre-existing heart condition. This court held, as we later held in International Harvester Co., that there need be neither external violence nor unusual strain or exertion in performing the regular duties of employment. The question is whether the unforeseen giving way of a part of the employee's body would be deemed to be caused or precipitated by his work. In Republic Steel this court, in reviewing other heart cases, concluded that in cases of pre-existing heart disease recovery is not necessarily precluded, depending on whether the disability was the combined result of the disease and the employee's work or the result of the disease alone.
Thus, in our case, Hartman had the burden of establishing that his employment on June 10, 1970, was a causative factor of the heart episode that occurred on that date and precipitated his disability. "He need not prove it was the sole causative factor nor even that it was the principal causative factor, but only that it was a causative factor in the resulting injury." (Republic Steel Corp. v. Industrial Com., 26 Ill.2d 32, 45; see also Kerz v. Industrial Com., 51 Ill.2d 319, 322; Smallwood v. Industrial Com., 53 Ill.2d 151, 155.) This court considered the nature of the required proof as to a causative factor in cases such as Hartman's in City of Chicago v. Industrial Com., 45 Ill.2d 350, and stated at page 352: "However, if one's heart has deteriorated to such an extent that any exertion becomes an over-exertion, it is not sufficient to merely show that the employee has engaged in some job-connected physical activity prior to his attack. [Citation.] The burden was on the claimant to show that certain activites incidental to employment were performed by the employee, that these activities were of a character to expose the employee to a greater risk of injury than if he had not been so employed, and that there was a causal connection between the activities and the death of the employee." See also Pontiac Chair Co. v. Industrial Com., 59 Ill.2d 261, 266.
Dr. Fitzsimmons, a general practitioner, testified for the employee. He had examined Hartman on May 18, 1972, and an electrocardiogram was taken. He testified as to the results of his examination, and in response to a hypothetical question concerning Hartman's prior physical condition, the nature of his work and the work he performed on June 10, 1970, stated that in his opinion there could be a causal connection between the employment on that date and Hartman's disability and that the present condition is permanent. On cross-examination he stated that what he had interpreted as an infarct from the electrocardiogram taken by him on May, 1972, may have been a showing of the operative procedure and scarring resulting from the heart surgery of November, 1970. He also stated on cross-examination that a person with a rheumatic heart disease within a period of a few months before required surgery would probably experience some cardiac problems which could occur while he was at home or even while lying in a hospital bed. However, he stated it would be more likely to occur with exercise or stress. The employer suggests that in light of Dr. Fitzsimmons's statements on cross-examination his opinion as to causal connection carries little weight.
The employer called Dr. Nellins as a witness before the arbitrator. Dr. Nellins is certified as a specialist in internal medicine. He had treated Hartman following the June 10, 1970, incident and during his hospitalization. He continued to treat him after his discharge from the hospital and again hospitalized him on October 19, 1970. On November 7, 1970, he had him transferred to another hospital for further examination and possible surgical correction. The surgical procedure was performed, and after Hartman's discharge from the hospital Dr. Nellins continued to treat him. In response to a hypothetical question, Dr. Nellins testified that there was no causal relationship between Hartman's work and his condition. He based his opinion on the fact that Hartman was performing his usual work. He stated that if a heart episode occurs under such circumstances "It would have occurred at any time anyway." The doctor concluded that if Hartman would have been performing excessive physical exertion, there could have been a causal relationship.
On cross-examination Dr. Nellins stated that increased activity or exercise increases the circulation and also increases the operation of the heart. He stated that the extra energy required to push a 1,000 lb. cart-load of blocks would increase the beat of the heart and in turn ...