Human Dignity in the Vegetative State

download report

Transcript Human Dignity in the Vegetative State

Dr Peter Au-Yeung
Diocesan Bioethics Committee
Catholic Diocese of Hong Kong
+ Recovery from severe brain damage
+ Apparent wakefulness without detectable
+ Persistent after 6-12 months
+ No further recovery expected
+ Usually breathes unaided
+ Usually needs tube feeding
+ Spectrum of states, including minimally aware
state, etc
+ Concerns about misdiagnosis
+ May have hidden residual cognitive function
+ Effects of zolpidem and levodopa etc
+ Collapsed in 1975 (aet 21)
+ Recovered to “PVS”
+ Parents went to Court to remove
her from ventilator
+ Courts approved stopping ventilation
+ Could breathe unaided
+ Died from pneumonia 9 years later
+ Drowned after being thrown out of
car in accident
+ Recovery to PVS, kept alive by tube feeding
+ Family wanted to remove tube feeding
+ Courts needed “clear and convincing evidence”
+ Evidence later found and tube removed
+ Cruzan died 11 days later
+ Legacy of Advanced Directives and Living Wills
+ Crushed at the Hillsborough
football disaster (aet 18)
+ Injuries left him in PVS
+ Doctors and parents want to withdraw feeding
+ Tube feeding (artificial nutrition and hydration
– ANH) ruled medical treatment
+ Can be withdrawn if not in patient’s best
+ Cardiac arrest 1990
+ PVS since then
+ Long legal battle by husband to stop tube
+ Legal battle fought by parents to prevent this
+ Tube removed 18-3-05
+ Died 13 days later
+ Life sustaining therapy
+ Extra-ordinary or disproportionate therapy
+ No moral obligation to start (Allocution on Reanimation,
Pius XII, 1957)
+ Carries significant medical risks (eg VAP)
+ Large range from TPN to tube feeding
+ Often used to denote tube feeding
+ Can be Nasogastric (NG) or Gastrostomy tube
+ Latter can be done via endoscopy (PEG)
+ Often use special milk-based feed
+ Actually most can be fed using pureed food
+ Often needed due to impaired swallowing
+ Placement of tube can involve significant risks
+ Tube placement rightly viewed as medical
treatment (say if involve GA)
+ Feeding through a functioning tube is not
+ Mainstream medicine can view tube feeding
in PVS as futile medical therapy
+ Catholic Church teaches that such tube
feeding as usually ordinary and proportionate
+ Beware geriatrics study showing tube feeding
as not affecting mortality
+ Their alternative is careful spoon feeding!!
I …. reaffirm strongly that the intrinsic value
and personal dignity of every human being do
not change, no matter what the concrete
circumstances of his or her life.
(Speech Of John Paul II To The International Congress on Life Sustaining
Treatments And Vegetative State Saturday 20 March 2004, no.3)
the value of a man’s life cannot be made
subordinate to any judgement of its quality
expressed by other men (ibid, no.6)
A man, even if seriously ill or disabled in the
exercise of his highest functions, is and always
will be a man, and he will never become a
“vegetable” or an “animal”.
(ibid, no.3)
The obligation to provide the “normal care due to
the sick in such cases” includes, in fact, the use
of nutrition and hydration … waning hopes
for recovery … cannot ethically justify the
cessation or interruption of … nutrition and
hydration. Death by starvation or dehydration
… as a result of their withdrawal … true and
proper euthanasia by omission.
(ibid, no.4)
I should like particularly to underline how the
administration of water and food, even when
provided by artificial means, always represents
a natural means of preserving life, not a
medical act.
Its use, furthermore, should be considered, in
principle, ordinary and proportionate, and as
such morally obligatory
(ibid, no.4)
We acknowledge that every human being has the
dignity of a human person, ….based on human
nature itself, … a permanent and intangible
value that cannot depend on specific
circumstances of life and cannot be
subordinated to anyone's judgment.
withdrawing nutrition and hydration, necessarily
administered to VS patients in an assisted way,
… followed inevitably by the patients' death as a
direct consequence…has to be considered a
genuine act of euthanasia by omission, which is
morally unacceptable.
+ The administration of food and water even by artificial means
is, in principle, an ordinary and proportionate means of
preserving life.
+ A patient in a “permanent vegetative state” is a person with
fundamental human dignity and must, therefore, receive
ordinary and proportionate care which includes, in principle,
the administration of water and food even by artificial means.
Responses To Certain Questions Of The United States Conference Of Catholic
Bishops Concerning Artificial Nutrition And Hydration (Aug 2007)
the general ethical criterion … the provision of water and
food, even by artificial means, always represents a
natural means for preserving life, and is not a therapeutic
treatment. Its use should therefore be considered ordinary
and proportionate, even when the “vegetative state” is
(last paragraph)
+ Shortage of organs for transplants
+ Various strategies to try and increase supply
+ One suggestion to re-define “death”
+ “Higher brain definition” to allow organ
harvesting in PVS patients
+ Human dignity is unaffected by the vegetative state
+ Assaults on their dignity by secular “morality” is
+ Euthanasia through starvation and dehydration
becoming accepted
+ Proposal even to use such persons as organ donors
+ Tube feeding is ordinary and proportionate care
+ No need to employ disproportionate means
+ Such persons not “burdens” on society
+ “Challenges” to our model of healthcare delivery
+ Beware therapeutic obstinacy (esp in