height, prescribed medications and physical therapy, injected the right shoulder, and recommended employee perform range of motion and strengthening exercises.
Later, as noted above, employee sought additional treatment with Dr. Satterlee, who diagnosed a rotator cuff tear, recommended surgery, and ultimately performed a right total shoulder replacement on December 6, 2000. Dr. Satterlee released employee at maximum medical improvement with regard to the right shoulder on June 7, 2001, with a permanent lifting restriction of 50 pounds. Employee settled his claim against employer for the August 17, 2000, injury for 50% permanent partial disability of the right shoulder at the 232-week level. We deem the settlement to be persuasive evidence of the extent of employee's disability referable to the right shoulder. We find that employee suffered a 50% permanent partial disability of the right shoulder as of June 7, 2001.
Employee claims preexisting psychological disability. He advances the testimony of Dr. Allan Schmidt, a PhD psychologist, who believes employee suffers from a preexisting 20% permanent partial psychological disability referable to attention deficit hyperactivity disorder (impulsive type) and a personality disorder (not otherwise specified and with obsessive-compulsive features). Dr. Schmidt explained that employee talks incessantly, is unable to focus on particular topics, and would have been very limited in what he could do vocationally from a psychological perspective.
Interestingly, in his testimony, Dr. Schmidt indicated that attention deficit hyperactivity disorder is not a psychological condition at all, but more in the nature of a neurological disorder. Given this testimony, we have some doubts about relying solely on Dr. Schmidt's psychological opinion diagnosing attention deficit hyperactivity disorder. On the other hand, our review of employee's rather disorganized and discursive testimony at the hearing, as well as his similar presentation when evaluated by his vocational expert, Mary Titterington, do lend significant support to Dr. Schmidt's diagnoses, as these seem consistent with the symptoms Dr. Schmidt identified as resulting from these conditions. We note also that there is no other expert psychological opinion evidence on record to rebut Dr. Schmidt's findings and opinions. Given these circumstances, we deem appropriate the administrative law judge's finding that employee suffered a preexisting psychological disability of 10% of the body as a whole. Because Dr. Schmidt credibly testified that employee's psychological diagnoses would have been present from birth or early childhood, we find that employee was suffering from this disability at the time of the primary injury.
Employee claims preexisting disability referable to sleep apnea. On April 5, 1999, employee saw Dr. Raghavendra Adiga for complaints of excessive fatigue and weight gain. Dr. Adiga suspected employee was suffering from sleep apnea and ordered a sleep study and additional tests to rule out diabetes and hypothyroidism. Employee apparently underwent the sleep study, but did not immediately follow-up for additional treatment.
Employee testified that his sleep apnea was bothering him at work by April 2003, and that he dealt with his severe fatigue by sleeping during his lunch breaks and by stopping on his commute to take naps. On May 1, 2003, employee saw Dr. Lisa Mansur for complaints of severe sleepiness. Dr. Mansur recommended employee lose weight and undergo another sleep study. On May 13, 2003, employee underwent a polysomnography which revealed