Johnston is a 49-year-old former journeyman plumber. Johnston graduated high school and spent four years in trade school. His entire vocational history consists of plumbing jobs with the most recent as a "working foreman."
Johnston was severely injured December 20, 2007 while trying to pull carpet. He felt a pop in his back with immediate onset of pain. He was provided medical care by his employer.
Johnston's back injury was treated by Dr. Hess. On May 21, 2008, Dr. Hess performed a lumbar fusion at Heartland Spine and Specialty Hospital. Medical records from Heartland reflect that with the immediate post-operative period Johnston had a rapid heartbeat and fast and irregular pulse. Johnston also was noted to have complaints of headaches.
Johnston, while home recuperating, developed problems with his left testicle. Johnston was treated for left testes epididymitis which was authorized and paid for by his employer.
Johnston continued during this time to have significant complaints of pain in his back. He also complained of headaches, rapid heart rate and dizziness. Due to his cardio/pulmonary symptoms and complaints, Johnston was referred to a cardiology group Cardiovascular Consultants in August 2008. Johnston was treated with medications. In December 2008 Johnston was diagnosed with atrial fibrillation.
Johnston was also seen in consultation with Dr. Wheeler for pain management and Dr. Ciccarelli, an orthopedist, to see if additional back treatment was warranted. Dr. Ciccarelli did not offer further care.
Johnston was seen by Dr. Giocondo of Cardiovascular Consultants due to his expertise in subspecialty of cardiac arrhythmias, including atrial fibrillation. Dr. Giocondo notes that Johnston developed shortness of breath and irregular heartbeat following his back surgery. Dr. Giocondo testified that the symptoms Johnston complained of can be related to surgery. He testified that Johnston's rhythm disturbance was caused by his back surgery due to temporal relativity. Because Johnston still had significant cardiac symptoms despite medications, Dr. Giocondo performed surgical ablation. This surgery damages heart tissue with heat to assist
with improvement of symptoms of arrhythmias. Unfortunately, Johnston had severe and significant complications from the ablation surgery including a periprocedural stroke and stenosis of the veins. Dr. Giocondo recommended Johnston be sent for further care to Mayo Clinic.
Treatment for Johnston up to this point had been under the direction of the workers' compensation carrier. Nancy Rafferty, the nurse case manager assigned to Johnston coordinated his care on the insurance carrier's behalf. Once the Mayo Clinic recommendation was made, the insurance carrier declined further coverage. They also requested a report from "Best Doctor's" to assess whether Johnston's medical condition was related to his back injury.
Johnston did obtain the recommended treatment on his own. Dr. Brian Powell surgically corrected Johnston's complication from the ablation procedure with the placement of stents. Johnston also treated with a neurologist, Dr. Bettinger, for symptoms associated with the stroke. Dr. Brian Powell, electrophysiologist or "heart rhythm specialist," treated Johnston while at Mayo Clinic. Dr. Powell explained that atrial fibrillation is an irregular rhythm in the upper chambers of the heart which causes rapid heartbeats triggering symptoms of shortness of breath and rapid heartbeat sensations. Dr. Powell testified that undergoing surgery is a common trigger for atrial fibrillation. Dr. Powell testified that Johnston's immediate postoperative medical records contain evidence of abnormal heart rhythm, specifically a heart rate of 180+ with irregular pulse. These entries are markers of an arrhythmia and atrial fibrillation which Dr. Powell testified occurred with Johnston. Dr. Powell testified that even without rhythm strips commonly used to diagnose atrial fibrillation, he believed that Johnston suffered postoperative atrial fibrillation.
Johnston has numerous symptoms and complaints associated with his back and cardio/pulmonary conditions. The stroke affected his vision restricting his right peripheral vision. He has memory issues associated, including the ability to remember words. Johnston is still under Dr. Giocondo's care for medications. He continues to have fatigue, dizziness, and shortness of breath. Johnston also has significant complaints regarding his back. Johnston takes prescription medications for pain. He has difficulty sleeping. He is unable to crawl, climb, kneel, squat, or bend. He is limited in his ability to sit, stand, and walk.
Johnston had several injuries which predate his December 20, 2007, injury. Some of these injuries included a left ankle fracture with surgery and internal fixation; left thumb surgery, facial injury with internal fixation and prior back injuries. Johnston testified that he had periodic problems with all of the prior injuries. He would occasionally delegate tasks or ask for assistance from coworkers due to his prior injuries. Johnston denies prior cardiovascular problems, high blood pressure, rapid pulse, or atrial fibrillation.
Dr. Koprivica evaluated Johnston and opined that Johnston was permanently and totally disabled. Dr. Koprivica's tests find Johnston suffered from failed back surgery. Dr. Koprivica believes Johnston permanently and totally disabled from his failed back surgery alone and in isolation without consideration of the cardio/pulmonary issues. Dr. Koprivica imposed significant physical restrictions, which include the ability to bend, lift, squat, crawl, kneel, or climb. He restricted Johnston's ability to sit, stand, walk, and change positions as needed.
Dr. Powell notes that Johnston had no prior history of high blood pressure, congestive heart failure, diabetes, or in an age group commonly associated with atrial fibrillation. Dr. Powell notes obesity alcoholism, emotional stress and trauma can be triggers of atrial fibrillation. While not common, Dr. Powell does believe that the very abnormal heart rate and rapid pulse in the postoperative notes indicate atrial fibrillation in Johnston. Once Johnston sustained the postoperative atrial fibrillation, subsequent atrial fibrillation was a natural consequence.
Dr. Michael Farrar, a cardiologist with expertise in atrial fibrillation, testified that he examined Johnston's medical records and could find no causal relationship between the atrial fibrillation and Johnston's low back surgery. He testified that he could not identify the cause of Johnston's atrial fibrillation, but it was likely due to obesity. Dr. Farrar opined that Johnston likely suffered from a lone or idiopathic atrial fibrillation that was not caused by the back surgery.
Dr. Bailey, an orthopedic surgeon, evaluated Johnston for his significant ongoing complaints. Dr. Bailey does describe Johnston's ongoing complaints regarding pain, low sitting tolerance, and muscle spasm. Dr. Bailey believes Johnston capable of returning to work in a medium work classification. He does not believe that Johnston's back fusion failed, but could not definitively state that without a CT scan which was not performed. Dr. Bailey assessed Johnston's permanent partial disability at 10 percent body as a whole.
Nancy Rafferty, occupational therapist and nurse case manager assigned to Johnston, testified live. Rafferty was responsible for coordinating medical care, acting as a liaison with the insurance company, and authorizing medical treatment for Johnston.
Rafferty coordinated and authorized Johnston's care and treatment with Dr. Hess. She was aware of Johnston's cardio issues while in Heartland, but she did not remember Dr. Hess being concerned or that it was related to the back surgery.
Rafferty coordinated and authorized the care and treatment as it related to Johnston's infected testicle. It was through these early July appointments that ultimately lead to a referral to a cardiologist. Rafferty coordinated and provided authorization to St. Luke's Hospital and
Dr. Giocondo for Johnston. Once Johnston was being referred to the Mayo Clinic, the insurance company obtained a "Best Doctors" report regarding Johnston's condition. The insurance company then terminated the relationship between Rafferty and Johnston. Rafferty specifically acknowledged that the care and treatment through St. Luke's Hospital through November 2009 was authorized.
Sheila Johnston, Johnston's wife, testified that her husband had no history of cardiac problems. She said prior to the last injury Johnston would tend cattle, do heavy farm work, hike and fish and was very active. Since the injury, they had to sell the farm, and Johnston performs limited household tasks. She has to remind Johnston to take his daily medications.