Advance Health Care Directives Daryl Pullman, Ph.D. Faculty of Medicine

advertisement
Advance Health Care
Directives
Daryl Pullman, Ph.D.
Faculty of Medicine
Objectives
 To better understand something of the
context in which AHCDs are prepared

i.e. some important issues and distinctions
with regard to end-of-life care
 To understand the nature and effective
utilization of Advance Health Care Directives
 To review some salient features of the N&L
legislation on AHCDs
MUNPA 09
2
The Ambiguity of Death
 Temporal Ambiguity
 Emotional Ambiguity
 Cultural Ambiguity
 Conceptual Ambiguity
MUNPA 09
3
Temporal Ambiguity
“Life used to be like a
light bulb. . . We’d burn
brightly for a time and
then we’d burn out.
That was it! Now it’s like
we’re on a dimmer
switch. It isn’t clear
when the light should
go out, or who should
turn the switch off . . .”
MUNPA 09
4
Death has become a negotiated event
 Patients are less
likely to die from the
underlying disease,
and more likely to
die from withdrawal
of intervention
MUNPA 09
5
Emotional ambiguity



Frustration, Remorse and Guilt
The dying process brings with it a wide range
of intense emotions for the patient, the family,
and for caregivers alike
Infamous “daughter-from-away”
MUNPA 09
6
Cultural Ambiguity
 The context of death—from home, to hospital, to
home
 The institutionalization and medicalization of death
has contributed to our death denying culture
 Too early to tell whether quicker and sicker
discharges will lead to greater understanding and
acceptance . . .
MUNPA 09
7
MUNPA 09
8
Conceptual Ambiguity
 Advancing medical technologies
continually stretch the concepts
by which we define and attempt
to manage medical interventions
 Death of the body vs death of the
person . . .
 Heroic/Extraordinary intervention



Terri Schiavo
Dialysis
Respirator
Nutrition & hydration
MUNPA 09
9
Concepts . . .
Futility
Are proposed interventions physiologically futile
or reasonably certain not to achieve the desired
outcome?
"medical futility"; "strict futility"; "objective
futility"
"futility of means"
Are proposed interventions futile in terms of the
expressed goals of the patient or their
surrogates?
"subjective futility“
"futility of ends"
MUNPA 09
10
Advance Health Care
Directives
A means by which competent individuals can
express their wishes with regard to health care
decisions in the event they are no longer
competent to communicate
Types of Advance Directives
 Instructional Directives
 Proxy Directives—
Substitute decision maker
 Value Based Directives
 Disease Based Directives
MUNPA 09
12
Instructional Directives (Living Wills)
 Contains a person’s preferences regarding
specific medical interventions

Usually related to end-of-life care, but not
limited to this
MUNPA 09
13
The majority of instructional advance
directives are used to…
 Instruct health care professionals to
withdraw or withhold medical treatments
such as







cardiopulmonary resuscitation
mechanical ventilation
dialysis
antibiotics
surgery
invasive diagnostic procedures
or artificial nutrition and hydration
MUNPA 09
14
Substitute Decision Maker
 Proxy Directive


“Durable Power of
Attorney for Personal
Care”
Designates a person (or
persons) who can make
medical decisions on the
incompetent patient’s
behalf
MUNPA 09
15
Values-based Directive
 Expresses the person’s attitudes towards
various aspects of human life including:






Physical and mental functioning
Pain
Social interaction (e.g. ability to
communicate)
Spiritual values
Other elements of quality of life
Medical intervention
MUNPA 09
16
Disease Specific Directives
 A type of
instructional
directive that
focuses on issues
pertaining to a
specific disease
 Diabetes, heart
disease, lung
disease etc.
All of the above types can be combined into one
comprehensive directive MUNPA 09
17
Example of a complex directive
CPR
VENTILATOR
SURGERY
BLOOD
TRANSFUSION
ANTIBIOTICS
TUBE
FEEDING
CURRENT HEALTH WITH
POTENTIALLY REVERSIBLE
ILLNESS
CHRONIC ILLNESS WITH
PHYSICAL DISABILITY
MILD
DEMENTIA
MODERATE
DEMENTIA
SEVERE
DEMENTIA
MUNPA 09
18
ADVANCE HEALTH CARE
DIRECTIVES ACT (1995)
 Newfoundland & Labrador passed the
Advance Health Care Directives Act in
1995
 The Act allows residents to prepare a
document setting out instructions or
general principles regarding health care
treatment
 The Act permits the naming of a proxy to
make decisions on a person's behalf in the
event of incapacity
MUNPA 09
19
Advance Health Care Directives Act
 Advance health care directive may contain:


Instructions or general principles re
health care treatment and/or
Appointment of substitute decisionmaker [s. 2]
 Formal requirements—The AHCD must be:



In writing,
Signed by the maker, and
Have two independent witnesses [s. 6]
MUNPA 09
20
So there is an advance directive:
What gets done with it?
 An advance health care directive comes into effect when maker
ceases to be competent to make and communicate health care
decisions, and lasts for duration of incompetence [s. 4]
 As long as patient is competent, can revoke/ revise advance
health care directive [s. 8]
 A health care professional who has a copy of an advance health
care directive must include it in patient’s medical record [s. 17]
MUNPA 09
21
When there is no pre-appointed substitute
decision maker











Determination of decision maker (must be 19 + yrs)
(a) the incompetent person's spouse;
(b) children;
(c) parents;
(d) siblings;
(e) grandchildren;
(f) grandparents;
(g) uncles and aunts;
(h) nephews or nieces;
(i) another relative of the incompetent person; and
(j) the incompetent person's health care professional who is
responsible for the proposed health care.
MUNPA 09
22
What does the substitute decision
maker (proxy) do?
 If joint SDM’s, majority rules [s. 11]
 SDM must act in accordance with:
(a) directions in advance health care directive;
(b) the wishes of the patient as expressed to SDM
when competent; or
(c) what the SDM believes to be the best interests of
patient (if (a) and (b) not available) [s. 12]
MUNPA 09
23
Emergency exception
Substitute Decision
Maker’s consent not
required if:
 Health care is
necessary to preserve
life or health, and . . .
 Delay in finding SDM
may pose significant
risk to patient [s. 9]
MUNPA 09
24
Consent Requirements
The fact that a document such as
a living will or advance directive
is on a patient's chart does not
remove the obligation of
physicians or other health care
practitioners to obtain proper
consent to treatment
MUNPA 09
25
Arguments in Favour of ADs
 They extend a person’s autonomy
 They promote fair treatment of incompetent
patients
 They reduce emotional anguish for patient’s
and families
 Can reduce distress for care-givers
 May increase communication
(patient/physician; patient/family)
MUNPA 09
26
Arguments against AD
 May be inappropriate to project the
autonomous wishes of healthy, competent
persons onto the future situations of
unhealthy, incompetent persons
 People change their minds but may not
change their directives
 Paradoxical problems of generality and
specificity
MUNPA 09
27
Directive too specific? too vague?
 If too specific to a particular set of
circumstances, then it will have no force
when those circumstances (or ones similar)
do not exist.
 On the other hand, if so general that it applies
to all possible events that could arise it is
usually too vague to give any usable direction
to the physician.
 In either case physicians will have to rely on
their professional judgment to reach a
decision.
MUNPA 09
28
Some concluding thoughts on ADs
 ADs are not a panacea for the many complex
issues that can arise around end-of-life
decision making
 ADs can be a catalyst to get people talking
about end-of-life issues
 They should be viewed and used as the
beginning of an on-going conversation (with
family members & physicians) not as the end
of a discussion
MUNPA 09
29
www.practicalbioethics.org/cpb.aspx?pgID=886
MUNPA 09
30
Download