In this workers’ compensation case, the Washington Hospital Center (“the Hospital”) seeks review of a decision by the
I
On March 20, 1981, Ms. Callier began work as a registered nurse in the Hospital’s burn trauma unit.. Her duties required her regularly to engage in heavy lifting in order to move patients who were partially or totally immobilized as a result of their injuries. On May 13, 1990, Ms. Callier lifted a patient weighing more than 350 pounds from a prone to a sitting position on the patient’s bed. 3 Immediately afterwards, Ms. Callier began to experience pain and discomfort in her lower back and abdomen. At the DOES hearing, she said it felt “like something dropped in my lower abdomen that shook me.” She reported the injury to her supervisor the next day.
During her annual physical a month or so later, Ms. Callier complained to her physician, Dr. Melvin Kordon, that she felt discomfort in her back and lower abdominal area. After examining her, Dr. Kor-don diagnosed her as suffering from recto-cele, cystocele, and femoral 4 hernias. Dr. Kordon referred Ms. Callier to Dr. Kline Price, a gynecologist, who confirmed the diagnosis of multiple hernias and recommended surgical repair. Dr. Price told Ms. Callier that continuing to work would only make her condition worse, so she stopped working at the Hospital on July 30.
On October 9, 1990, Ms. Callier underwent surgery to repair her hernias. The surgery, performed by Drs. Thomas Goo-dridge,
5
Eric Oristian, and Joseph Bloom,
At the compensation hearing before the DOES hearing examiner, the only issue was whether Ms. Callier’s condition was causally related to the May 13 lifting incident at work. The parties stipulated that Ms. Callier had a pre-existing rectocele and cystocele at the time of that incident. 6 Ms. Callier’s theory was that her pre-exist-ing condition was aggravated by repetitive heavy lifting over a period of nine years prior to May of 1990, and that the May 13 incident was “the straw that broke the camel’s back,” further aggravating the condition to the point that it required surgical correction.
The Hospital agreed that the statutory presumption of compensability had been satisfied, but sought to rebut the presumption through the testimony of Dr. Donald Sewell. On the basis of his physical examination of Ms. Callier in September 1991, as well as his review of her entire medical history, Dr. Sewell concluded in his written report “with a reasonable degree of medical certainty that a single lifting episode on May 13, 1990 was not the cause of this patient’s cystocele, rectocele, or femoral hernia” (emphasis in original). Dr. Sewell testified at the hearing that Ms. Callier’s condition could have been caused by various factors, including the natural weakness of her tissue, trauma during childbirth, or anything that might have increased the pressure inside her abdomen, such as chronic coughing, constipation, or regular heavy lifting. After reviewing her medical records, Dr. Sewell stated that Ms. Callier’s condition appeared to have developed gradually over the course of a nine-year period beginning in 1981. He found no evidence, either in the medical records or in his examination, of “an acute laceration or tear of supporting tissues” which would indicate that the hernias were caused by a single traumatic incident. He also noted that Ms. Callier had a history of chronic constipation, and speculated that this might have been a contributing factor to the gradual aggravation of her condition. In conclusion, Dr. Sewell stated that “since the cystocele [was] there as of May 12, 1989 [sic ], I can’t say that an acute lifting episode on May 13,1990, caused it. It was already there.”
On cross-examination, Dr. Sewell conceded that repetitive heavy lifting over time would aggravate a condition such as Ms. Callier’s to the point that it would eventually require surgery. The doctor also admitted that he had no knowledge of the severity of Ms. Callier’s condition in May of 1990, before she lifted the heavy patient, as compared with June of 1990, after the lifting incident. He continued to insist, nevertheless, that the acute lifting episode on May 13 “did not cause [Ms. Callier’s] condition to become symptomatic to the nature that it was causation on that day ....”
When asked about the possibility that the lifting incident might have incrementally aggravated Ms. Callier’s pre-existing condition to the point that it required surgery, Dr. Sewell replied:
No, this would go on gradually, that is, as the condition became more aggravated, the cystocele became at a [sic ] much greater degree than it was, and the rectocele increased, and she would have increasing problems with urination, she would start urinating on herself, and as it eventually became more aggravated, that condition would become worse. The same thing with the stool evacuation, that would gradually increase andincrease, and these people with this condition tolerate it for a point .... but it doesn’t get better, it just continues on, and at some point in the symptom process they get tired of it, and they go to someone and say, can you help me, and that’s when it gets corrected. [Emphasis added.]
Dr. Sewell explained that the exact point at which a condition such as Ms. Callier’s might require surgery would depend on the individual patient: “however far it goes would depend on how far it’s allowed to go.” When Ms. Callier’s attorney pressed Dr. Sewell for further explanation, he finally stated, “I’m telling you that heavy lifting can aggravate this condition. Now, whether she goes to see a doctor is based upon the patient.”
The hearing examiner found that Dr. Sewell’s testimony supplied “the only definitive medical opinion” of the causal relationship between Ms. Callier’s condition and the work-related incident. 7 The examiner noted that, while Dr. Sewell stated that “claimant’s herniations were not caused by the May 13, 1990, work incident,” he also testified that “heavy lifting or straining could aggravate these conditions to a point of requiring surgical correction.” The examiner concluded, “As claimant’s aggravation resulted from [her] work activities, the aggravation arose out of and in the course of her employment.” Further, citing Ms. Callier’s testimony that she “felt something drop” in her abdomen upon lifting the patient, as well as the absence of any evidence of an inguinal hernia before May 13, 1990, the examiner concluded that the inguinal hernia was also work-related.
The Director of DOES affirmed the decision of the hearing examiner, emphasizing that “there is no evidence, in the record, from any physician that heavy lifting could not aggravate claimant’s condition” (emphasis in original). The Director also cited Dr. Goodridge’s opinion that Ms. Cal-lier’s condition was apparently caused by the May 13 lifting incident, 8 as well as Dr. Sewell’s testimony that “a hernia could be caused by a heavy lifting episode, because that is a tissue tearing.”
II
A. The Presumption of Compensability
Under the District of Columbia Workers’ Compensation Act (“WCA”), once an employee offers evidence demonstrating that an injury was potentially caused or aggravated by work-related activity, a presumption arises that the injury is work-related and therefore compensable under the Act.
See
D.C.Code § 36-321(1). This presumption serves “to effectuate the humanitarian purpose of the statute [and] reflects a ‘strong legislative policy favoring awards in arguable cases.’ ”
Ferreira v. District of Columbia Dep’t of Employment Services,
The Hospital argues that the hearing examiner failed to discuss the applicability of the statutory presumption, and therefore failed to comply with the principle that administrative decisions in contested cases “must state findings of fact on each material contested factual issue.”
Perkins v. District of Columbia Dep’t of Employment Services,
The basic flaw in the Hospital’s argument is its assumption that a compensation order must contain certain magic words in order to demonstrate that the examiner followed the statutory procedures. We have never held hearing examiners to such an exacting standard, and we see no reason to do so now. The relevant question is not whether the examiner said he applied the statutory presumption, but whether in fact he properly did so. From the record before us, we conclude that he did.
It is well established in this jurisdiction that a disability resulting from the aggravation of a pre-existing condition is compensable under the WCA.
See, e.g., Metropolitan Poultry v. District of Columbia Dep’t of Employment Services,
Ms. Callier testified that when she lifted the patient on May 13,1990, she “felt something drop” in her abdomen, and that her condition dramatically worsened following this incident. This testimony, even standing alone, might well have been sufficient to invoke the statutory presumption of causation. In
International Security Corp. v. McQueen,
Though the compensation order itself does not contain the word “presumption,” it is clear from a reasonable reading of the order that the hearing examiner correctly applied the statutory presumption of com-pensability. Since there is ample evidence in the record to support the examiner’s decision to do so, we reject the Hospital’s argument on this point.
B. The Examiner’s Findings
The Hospital next argues that the examiner’s finding of a causal relationship between the work-related lifting incident and Ms. Callier’s disability was not supported by substantial evidence, and that the Director therefore erred in not reversing the compensation order. Although, for reasons discussed hereafter in part III, we remand this case for reconsideration by the Director, we cannot agree with the Hospital’s contention that the Director should have reversed the hearing examiner’s decision on this ground.
Notwithstanding the statutory presumption of compensability, the burden ultimately falls on the claimant to show by a preponderance of the evidence that his or her disability was caused by a work-related injury.
See, e.g., Stewart v. District of Columbia Dep’t of Employment Services,
The only evidence offered by the Hospital to rebut the presumption of compensa-bility was the testimony of Dr. Sewell, who maintained that Ms. Callier’s condition was aggravated gradually, over an extended period of time, and that her disability was not attributable to a single incident. According to Dr. Sewell, if Ms. Callier’s condition had been aggravated by the lifting episode on May 13, the lifting would have caused a traumatic tearing of the surrounding tissues, whereas aggravation resulting from repetitive lifting over time would be manifested by a gradual stretching and loosening of those tissues. From his review of the medical records, Dr. Se-well concluded that no tissue tearing had occurred.
On cross-examination, Dr. Sewell was questioned extensively about the possibility that Ms. Callier’s condition might have been slowly aggravated over an extended period of time, but did not progress to the point of requiring surgery until it was further aggravated on May 13 when she lifted an extremely heavy patient, straining her back and causing something to “drop” in her lower abdomen. In a contentious exchange, Dr. Sewell steadfastly refused to make this concession. Paradoxically, however, he did acknowledge that Ms. Callier’s condition would have been aggravated by heavy lifting, and that “at some point” during this gradual process her symptoms would become so severe that she would seek medical attention. The doctor tenaciously clung to his opinion that the May 13 lifting incident was not the “point” at which this happened, but he was unable to offer any explanation for that opinion.
Although the compensation order is not as clear as one might wish, the examiner apparently — and permissibly — accepted the greater part of Dr. Sewell’s testimony, but rejected his ultimate conclusion. Given the logical inconsistencies in Dr. Se-well’s opinion, we cannot say that this decision was erroneous.
Additionally, we hold that the Hospital’s challenge to the examiner’s finding of a causal relationship between the lifting incident and the inguinal hernia is without merit. As the examiner recognized, there was no evidence that Ms. Callier had an inguinal hernia before May 13, 1990, and the strain experienced by Ms. Callier on that date certainly had the potential of causing such a hernia. Thus the statutory presumption of compensability was properly triggered, and the Hospital failed to rebut it.
See Parodi,
Ill
“[I]t is the Director’s final decision, not the examiner’s, which may be reviewed in this court.”
St. Clair v. District of Columbia Dep’t of Employment Services,
In this case we do not agree with the Hospital that the Director’s decision affirming the examiner’s compensation order was necessarily erroneous, and thus we do not reverse and overturn the compensation order. Our review, however, convinces us that the Director did not apply the correct standard of review. The Director’s stated reason for upholding the examiner’s decision was that the Hospital had failed to demonstrate that Ms. Callier’s disability “could not” have been caused by the work-related lifting incident.
Beyond stating that substantial evidence means “more than a mere scintilla,” we have declined to establish a precise quantum of proof needed to meet the substantial evidence threshold. In requiring proof that Ms. Callier’s disability “could not” have been caused by the lifting incident, the Director placed on the Hospital a burden that has no basis either in the workers’ compensation statute itself or in prior decisions of this court. Our
cases
— Fer-
reira
/, for example — require an employer only to offer “substantial evidence” to rebut the statutory presumption of compens-ability, not to disprove causality with absolute certainty.
See
The statutory presumption makes it easy for an employee to establish that a disability is work-related and, as we have often said, favors awards in “arguable cases.” Id. (citations omitted). That presumption, however, is not so strong as to require the employer to prove that causation is impossible in order to rebut it. The standard applied by the Director in this case did just that. We therefore reverse the final DOES decision and remand the case to the Director with instructions to reconsider the examiner’s compensation order, and to apply the correct standard of review when doing so.
Reversed and remanded.
Notes
. A cystocele is a herniation of the bladder into the vagina.
. A rectocele is a herniation of the rectum into the vagina.
. Ms. Callier had worked with this patient, who had burns covering almost fifty percent of her body, for several weeks prior to this incident.
. The initial diagnosis of a femoral hernia was apparently erroneous, since the post-operative report describes an inguinal, rather than femoral, hernia repair.
. Before the surgery, Ms. Callier sought a second opinion from Dr. Goodridge, who also confirmed the diagnosis and recommended that the hernias be surgically repaired.
. In 1979, following the birth of her second child, Ms. Callier had surgery to repair a cystocele and a rectocele. There was evidence in the medical records that this problem had recurred before 1990. In May of 1989, for example, Dr. Kordon noted the presence of a cystocele during Ms. Callier’s annual physical.
. The examiner rejected the opinion of Dr. Goodridge on this question, despite the fact that he was one of the operating physicians, because his knowledge of Ms. Callier’s medical history was "limited.”
. In a letter written shortly after the surgery, Dr. Goodridge stated that the hernias were "apparently caused by the May 13 lifting incident.” Though citing this opinion in support of her decision, the Director noted that it was rejected by the hearing examiner.
. Dr. Sewell testified, after reviewing Ms. Cal-lier’s medical records, that there was no tearing of the tissue. Our examination of those records, however, reveals only that they are silent on the question of whether or not any tissue was tom.
