Report to the Minister of Justice and Attorney General Public Fatality Inquiry
WHEREAS a Public Inquiry was held at the
Date and Time of Death:
Royal Alexandra Hospital, Edmonton, Alberta
Medical Cause of Death:
(“cause of death” means the medical cause of death according to the International Statistical Classification of Diseases, Injuries and Causes of Death as last revised by the International Conference assembled for that purpose and published by the World Health Organization – The Fatality Inquiries Act, Section 1(d)).
Manner of Death:
(“manner of death” means the mode or method of death whether natural, homicidal, suicidal, accidental, unclassifiable or undeterminable – The Fatality Inquiries Act, Section 1(h)).
Report – Page 2 of 2 Circumstances under which Death occurred: Recommendations for the prevention of similar deaths:
A Judge of the Provincial Court of Alberta
On July 29, 2007, Corona Dorinea McChesney (“McChesney”) died at the Royal Alexandra
Hospital as a result of head injuries sustained in an accident which occurred outside of the
Glenrose Hospital on July 26, 2007, when the wheelchair that she was using overturned.
The public fatality inquiry into this incident took place on September 17, 2009.
Medical Treatment Prior to Accident
In June of 2007, McChesney was a 69 year old woman who had been admitted to the
University of Alberta Hospital in Edmonton, Alberta, for a T6-T7 transthoracic endoscopic
discectomy. Post operatively, McChesney had reduced neurological function with no voluntary
movement of her legs. Her condition was described in her medical charts as a “T6-T5
On June 28, 2007, McChesney was transferred from the University of Alberta Hospital to the
Glenose Hospital to undergo a program of rehabilitation. On arrival at the Glenrose Hospital, in
addition to paraplegia, McChesney was also noted to have significant bruising in the abdomen
and to most of the left arm. She had also been experiencing nose bleeds and vaginal bleeding.
McChesney had a history of coronary artery disease which resulted in a myocardial infraction in
2004 and the insertion of a stent in 2007. She also had hypertension (high blood pressure) and
hypercholesterolemia (high blood cholesterol).
While at the Glenrose Hospital, McChesney received medications including a combination of
aspirin and Plavix in connection with her coronary artery disease. In addition, she had been
prescribed and was receiving Fragmin and an anticoagulant, Heparin, for deep vein thrombosis
prevention. McChesney was also prescribed and was taking Baclofen for spasms.
An initial physiotherapy assessment was undertaken at Glenrose Hospital on June 29, 2007.
The results of that assessment contemplated that a manual wheelchair would be ordered for
McChesney “ASAP” and that she would participate in a wheelchair skills class.
A rehabilitation program began immediately on the basis of a treatment plan which included
range of motion exercises, strengthening exercises, mat work, transfer training, balance
training, patient education and wheelchair skills training. The physical therapy program
designed for McChesney included a direct physical therapy session for one hour per day for the
time that she was at the Glenrose Hospital.
On July 11, 2007, a multi-disciplinary program conference was held. Participants in the
conference included the attending physician, Dr. John Guthrie, as well as representatives from
nursing, occupational therapy and physiotherapy. At the time of the conference it was reported
that, from a medical perspective, McChesney was doing “amazingly well”. From a physical
therapy perspective McChesney was reported as being very coordinated although she had
“poor sitting balance”. The goals for McChesney included mobility, strengthening and
wheelchair skills. Overall, the physiotherapist reported that McChesney was “doing better than
In the very early morning hours of July 26, 2007, approximately 16 hours prior to the time of the
accident which lead to her death, McChesney began to develop spasms in her legs which were
much stronger than any spasms she had previously experienced. In addition, McChesney
complained of nausea. The resident on call, Dr. Matthew Prowse, attended on McChesney at
approximately 2:45 a.m. In evidence Dr. Prowse indicated that spasms could be of some
concern for a patient with a spinal cord injury such as McChesney because it could be an
indicator of potential infection or a potential cardiac issue. Dr. Prowse conducted a “full head to
toe assessment”, including an electrocardiogram to rule out any potential cardiac issues. In
addition, he gave instructions for a urine sample to be taken to rule out potential infection.
During the course of his assessment, the spasms spontaneously resolved and Dr. Prowse
concluded that no further investigation was required.
Wheelchair Selection, Training and Set Up
Karen Benterud (“Benterud”) is an experienced physiotherapist who graduated with a B.Sc in
physiotherapy from the University of Alberta in 1992. After working for a number of years in
acute care settings in hospitals in Alberta and abroad, she came to the Glenrose Hospital in
2000 to work as a physiotherapist in the spinal cord injury unit.
Benterud was directly involved in the initial assessment of McChesney on June 29, 2007 and
participated in the July 11, 2007 multi-disciplinary conference.
Benterud was McChesney’s primary care physical therapist and in that capacity directly
assisted McChesney in her rehabilitation program on five occasions between June 29, 2007
and July 23, 2007, when Benterud left on her vacation. Benterud had no involvement of any
kind with McChesney from July 23, 2007 to July 26, 2007, the date of the accident which
Early in the rehabilitation program, Benterud discussed the wheelchair options which were
available to McChesney. The factors which need to be taken into account when selecting a
wheelchair include comfort, safety and mobility. The options for a wheelchair included both a
rigid chair or a heavier folding chair. Based on her assessment, Benterud concluded that either
The wheelchair originally used by McChesney was a folding wheelchair owned by the Glenrose
Hospital. However, after an initial trial with a folding wheelchair, McChesney requested a trial of
a lighter rigid chair which Benterud concluded would be a good choice for McChesney’s
propulsion and mobility. As a result, a Quickie GT model was ordered on a trial basis for
Benterud conducted an initial assessment of McChesney’s wheelchair skills. This assessment
was conducted while McChesney was using the heavier folding wheelchair, and included
observations of McChesney undertaking rudimentary movements such as turns, entry into and
exit from the elevator and into and out of the bathroom. When Benterud was satisfied that
McChesney was independent in those basic maneuvers she referred McChesney to the
wheelchair skills class which was taught by a physiotherapist assistant. A large component of
the skills classes related to safety issues, including risks associated with the use of the
wheelchair on uneven surfaces, issues associated with reaching or leaning from the wheelchair
and circumstances which could result in the wheelchair tipping over.
As part of the wheelchair skills class, McChesney was taken outside of the Glenrose Hospital to
a patio area which consisted, in part, of a flat concrete surface but which also consisted of a
patio constructed of interlocking bricks. The patio area also had a number of obstacles,
including large concrete planters and picnic tables.
The skills class which McChesney participated in also required her to use the wheel chair on
uneven surfaces and on slopes. The classes were designed to simulate real life situations
which students could and would face upon discharge from the Glenrose program.
Based upon her assessment, Benterud had no concerns with McChesney’s use of the
wheelchair. She described McChesney as a “cautious user” and as a person who was not a
Joshua Bashow (“Bashow”) is a physiotherapist on staff at the Glenrose Hospital. He
graduated from the University of Alberta with a B.Sc in physiotherapy in 2001 and has been
employed with the Glenrose Hospital since the spring of 2002.
Bashow had limited involvement with McChesney prior to July 26, 2007 although on
approximately two or three occasions, while Benterud was away on holidays, he assisted
McChesney in developing a series of sitting balance techniques and also with transfers from a
In addition, and while Benterud was away on holidays, Bashow was involved in making
arrangements for McChesney to begin a trial with the Quickie GT model wheelchair which had
been supplied and serviced by Echo Medical Equipment Ltd. (“Echo”). The Quickie GT model
was delivered to Glenrose prior to July 26, 2007, but it remained in storage until an Echo
representative could attend at the hospital to make the necessary adjustments to the
Michael Constanzo (“Constanzo”) has been an employee of Echo since approximately 1980. In
July 2007, he was a part owner of the company and was also the sales manager. He described
Echo as being in the business of supplying and servicing medical rehabilitation equipment,
On the morning of July 26, 2007, Constanzo attended at the Glenrose Hospital and met with
Bashow, who requested that Constanzo make the necessary adjustments so that the Quickie
GT would be as stable as possible for McChesney.
The Quickie GT is a rigid wheelchair which, according to Constanzo, is one of the lighter
wheelchairs on the market. It comes with a number of safety features including, in particular, a
seatbelt and also “anti-tipping bars” at the rear of the wheelchair to reduce the risk that the chair
will tip over backwards. In addition, the Quickie GT was designed with the rear wheels
cambered at an angle of six degrees to add to the stability of the chair.
The Quickie GT was first available to Echo in early 2004 and thus, at the time of the accident,
Echo had approximately two and one half years experience with the model. The Quickie GT
was, according to Benterud, frequently in use at the Glenrose Hospital. Prior to July 26, 2007,
neither Constanzo nor Benterud were aware of any problems experienced by the Quickie GT
To accommodate Bashow’s request for maximum stability, Constanzo made three adjustments
the rear wheels were moved back on the frame to increase the wheel length and
the rear of the seat was slightly elevated to reduce the risk of backward tip-overs;
the back of the chair was slightly opened by approximately ten degrees from the
Constanzo described these as standard adjustments to make the chair more stable. During the
27 years which Constanzo was in the industry he had participated in a number of hands-on
training sessions provided by manufacturers. He had not, however, taken any training which
On the afternoon of July 26, 2007, Bashow met with McChesney and provided her with the
Quickie GT model wheelchair. Bashow observed McChesney in the operation of the
wheelchair and specifically noted that she had the seatbelt engaged and the anti-tipping bars
were in position. Bashow had no concerns with respect to McChesney’s use of the Quickie GT
and, as a result, he left McChesney with the physical therapy assistant who continued with the
wheelchair skills class. The physical therapy assistant reported to Bashow after the skills class
on July 26, 2007 and advised that McChesney had done “very well” with the wheelchair both
indoors and outdoors. The only difficulty experienced by McChesney in the wheelchair skills
class that day was in moving up ramps where she needed assistance.
On Thursday, July 26, 2007, shortly before 6:00 p.m., an unknown visitor at the Glenrose
Hospital attended at the front desk and advised a security officer that a patient had fallen from a
wheelchair in the picnic area located east of the main entrance to the hospital. The security
officer directed a second security officer, Derek Campbell (“Campbell”), to investigate. On
arrival at the picnic area, Campbell found McChesney in a wheelchair which was laying on the
ground on its right side. McChesney’s seatbelt was on and her head was pressed against the
base of a concrete planter. McChesney was being attended to by Dr. Curtis Hlushak.
Campbell spoke to McChesney on his arrival. McChesney reported to Campbell that:
she had been in her wheelchair moving backwards between two planters to get
out of the sun when she became stuck. She attempted to free the wheelchair and
this resulted in it flipping backwards on top of her;
the wheelchair was new and she was not used to it; and
she had almost fallen earlier that day however someone behind her had caught
the chair and prevented it from falling.
There were no witnesses to the incident and therefore the only evidence available regarding the
accident consisted of the physical observations of McChesney in the wheelchair immediately
following the event and the verbal report provided by McChesney.
Campbell found McChesney seat belted into her wheelchair which was lying on its side. I
conclude that it would be virtually impossible for a wheelchair to flip over backwards and yet be
found lying on its side as reported by Campbell. Furthermore, the wheelchair was equipped
with anti-tipping bars which would reduce the risk of backwards tipping.
On the basis of the evidence that is available, I conclude that McChesney fell over sideways in
her wheelchair and struck her head on the concrete planter. I conclude that she did not fall
over backwards in her wheelchair as was reported to Campbell.
I thus conclude that the comments which were made by McChesney to Campbell immediately
following the accident were inaccurate, likely because in the accident McChesney struck her
head on the planter and was somewhat confused.
Medical Response to the Accident
The nursing response team at the Glenrose Hospital was alerted to the accident by pager at
approximately 6:30 p.m. Bonnie Thomas, R.N. (“Thomas”), was a part of the team which
responded to the accident. On her arrival at 6:36 p.m., she and her partner, Patricia Mitchell,
saw that McChesney was on the ground out of the wheelchair and that she was being attended
to by a physician and by a security guard.
Dr. Hlushak, Campbell and Thomas assisted McChesney into her wheelchair. Thomas then
undertook a cursory medical assessment by obtaining her pulse, respiration, blood pressure
and oxygen saturation levels. Thomas also noticed a small scratch on McChesney’s right wrist
and a small bump on the back of her head which was tender to the touch. McChesney’s pupils
After being examined, McChesney was returned to Unit 3B where she was monitored by
medical and nursing staff. On arrival at the unit, nursing staff noticed that McChesney was
oriented as to person, place and time. She reported no loss of consciousness in the incident
but was observed to have a bump on the right side of the back of her head as well as bruising
to the inside of her right elbow. She also had a cut to the top of her right wrist. Nursing staff
assisted McChesney with a shower, cleaned her wounds and settled her into bed.
At approximately 7:15 p.m., a Licensed Practical Nurse (“LPN”) again checked on McChesney
and found that she was complaining of headaches and nausea, and had discharged
approximately 50 ml of vomit. The LPN notified the Registered Nurse, Norma Golemblski
(“Golemblski”), who in turn placed a call to Dr. Matthew Prowse, the resident on call that
evening. Dr. Prowse was briefed regarding McChesney’s fall earlier that evening and, in
addition, was briefed on her progress in hospital following the incident.
Dr. Prowse had some familiarity with McChesney since he had assessed her in the early
morning hours of that day. Dr. Prowse was aware that McChesney was taking anti-coagulant
medication, Heparin, and was aware that the anti-coagulant medication increased the risks
associated with a patient with a head injury. He explained in evidence that he took this into
account when considering the information provided by Golembski in connection with
McChesney’s condition at 7:15 p.m. on July 26, 2007.
Dr. Prowse directed that McChesney be monitored for the next one half hour and that her
neuro-vital signs be taken every two hours. In addition, Dr. Prowse advised that he should be
contacted again if there were any changes in McChesney’s symptoms or if she developed any
new symptoms such as, in particular, blurred vision.
At 8:00 p.m. on July 26, 2007, the LPN attended on McChesney and provided her with her anti-
At 10:00 p.m. on July 26, 2007, the LPN again checked on McChesney and found that she was
resting quietly. At that time, McChesney was responsive to person, place and time, her pupils
were equal and reactive to light and she had strong motor function with both hands.
McChesney did however report continuing headaches, but indicated that they were no better or
no worse than the headaches she had been experiencing earlier that evening. McChesney
continued to be nauseous. At that time the LPN noted a discharge of approximately 150 ml of
vomit, which was a volume in excess of that which had been discharged at 7:15 p.m.
Following her assessment of McChesney at 10:00 p.m., the LPN reported to the RN,
Goleumbski, but no attempt was made to report to Dr. Prowse with respect to McChesney’s
At 10:40 p.m., the LPN once again checked on McChesney. At that time the LPN was not able
to wake McChesney, but did find that McChesney could squeeze with her left hand but not her
right. The LPN called for the assistance of Golumbski who in turn placed a telephone call to Dr.
Prowse. When learning of McChesney’s symptoms, Dr. Prowse ordered that:
a physician who was in the hospital at that time, Dr. Kwan, be paged; and
an ambulance be called to transport McChesney to the Royal Alexandra Hospital.
After concluding the call with Golembski, Dr. Prowse left his home and began to travel to the
Glenrose Hospital so that he could participate in the assessment of McChesney.
Immediately after becoming aware that McChesney could not be awakened, nursing staff took
steps to suction vomit from her mouth and to monitor her vital signs. They noted that the right
pupil was dilated and not responsive to light. McChesney continued to be stable but
unresponsive until the code blue team arrived at 10:50 p.m. The nurses from the code blue
team continued to monitor her vital signs and assessed her cardiac condition with an
Dr. Kwan responded with the code blue team. He took a brief history and concluded that
McChesney was likely experiencing an intracranial hemorrhage secondary to the fall from the
wheelchair. He confirmed the earlier instructions from Dr. Prowse that McChesney should be
transported to the Royal Alexandra Hospital.
Emergency Medical Services (“EMS”) personnel arrived with an ambulance almost
immediately. EMS were met by security staff at the main entrance to the Glenrose Hospital and
were escorted directly to McChesney’s room. EMS received custody of McChesney and left the
Glenrose Hospital at 11:10 p.m. for transport to the Royal Alexandra Hospital. The Royal
Alexandra Hospital is located directly across the street from the Glenrose Hospital. As a result,
McChesney arrived at the Royal Alexandra emergency department very shortly after 11:10 p.m.
A CT scan in the emergency department showed a large right subdural hemorrhage.
Neurosurgery was consulted and McChesney was taken to the operating room on an emergent
basis for a craniotomy and evacuation of a subdural hematoma. Following surgery McChesney
was taken to the Intensive Care Unit. The neurosurgeon, Dr. Steinke, assessed her prognosis
as “hopeless”. This prognosis was discussed with McChesney’s family. McChesney died in the
Royal Alexandra Hospital on July 29, 2007 at 7:52 a.m.
The evidence tendered at this public fatality inquiry clearly discloses a series of events which
led to the death of McChesney. However, the evidence does not disclose any deficiencies
which could be remedied by the implementation of any reasonable recommendations designed
to prevent similar deaths in the future.
It could potentially be argued (but was not argued before me) that wheelchairs can and should
be designed in such a fashion that they cannot tip. However, the Quickie GT wheelchair used
by McChesney was designed with anti tipping bars which minimize backward tipping. The
wheels are cambered by six degrees to make the chair more stable and in this way the design
reduces the risk of tipping to the side. Furthermore, the chair was adjusted by Echo for
improved stability only hours before this unfortunate incident. Most importantly however, the
witnesses at this fatality inquiry, who had significant experience with the placement of patients
in wheelchairs, confirmed that the type of sideways tipping which occurred here is almost
unheard of. As a result I conclude that it is unnecessary and would be improvident to make any
recommendations with respect to the design or set up of wheelchairs.
It could also perhaps be argued (but was not argued before me) that hospital staff who select
wheelchairs and train patients in relation to the use of wheelchairs might implement more
rigorous procedures designed to ensure a higher level of safety. However, I am satisfied on the
evidence available to me, that no recommendations are necessary. The Glenrose Hospital has
in place protocols for the selection of wheelchairs and the training of patients. There is simply
no evidence available which would permit reasonable recommendations to prevent similar
accidents in the future. Accidents of this type are unpredictable and represent risks which all
Finally, it could perhaps be argued (but it was not argued before me) that some
recommendations be made with respect to the medical and nursing care which patients receive
following incidents of this nature. Again, I do not believe that there is any legitimate basis for
making any recommendations in this regard. In hindsight, perhaps the exercise of medical
judgment might have been different at various critical points following the accident. However, I
believe that it is unnecessary and would be unwise to make recommendations which might
affect medical treatment and medical decisions in the future. This is particularly so when there
is no medical evidence which suggests recommendations would improve care or prevent future
Given all of the above, I conclude that no recommendations are necessary or advisable in
connection with this public fatality inquiry.
Dated at the City of Edmonton, in the Province of Alberta
American Association of Oral and Maxillofacial Surgeons Position Paper on Bisphosphonate-Related Osteonecrosis of Bisphosphonate-related osteonecrosis of the jawMaxillofacial Surgeons (AAOMS). The Task Force(BRONJ) adversely affects the quality of life andwas composed of clinicians with extensive experi-produces significant morbidity in afflicted patients. ence in caring for these pa