PrairiEDocs
e-newsletter #11
Other
archived PrairiEDocs e-newsletters
Surveying
the land (and web) for news (and more)
for the emergency medicine practitioner…
Issue #11 "fasten
your seat belt and adjust your headrest as this
electronic ed-venture continues" October 19, 2000
In this issue:
Resurrected
Interest in an Old and Controversial Treatment for AMI
Legislative news
ARB on the WWW
A Diagnosis 199 Years Later?
Some of the
Ig Nobel Prize Winners
Quotable Quotes
Financial
sponsorship statement & How to contact us
Resurrected
Interest in an Old and Controversial Treatment for AMI
An infusion of glucose, insulin and potassium (GIK), a simple and
inexpensive adjunctive treatment for heart attacks, originally surfaced
in the early 1960s and then later abandoned amid controversy-is
getting another look.
An earlier study, in 1996, looked at the results of a GIK administration
to diabetic patients experiencing heart attacks. Researchers found
a 29-58% decrease in relative mortality within the subgroups studied
that received the GIK.
Then a second study, this time a pilot study that was published
in 1998, looked at six Latin American countries, utilizing 29 hospitals
and 407 people. Participants were given either high does GIK, low
dose GIK or no GIK within 24 hours of onset of symptoms. Two-thirds
of the group included patients who were also treated with angioplasty
or thrombolytics. Results were also stratified to also look at those
that suffered significant arrhythmias and/or heart failure. Those
that received GIK infusions had a death rate of 6.7 percent compared
to a rate of 11.5 percent for those that did not receive the infusion.
The difference was even greater in those that received thrombolytics
and/or cardiac catheterization----5.2 percent death rate for those
receiving GIK and 15.2 percent for those that did not (a 66% relative
reduction). Researchers stated that in almost every stratification,
those that received GIK "showed significant benefit or a trend towards
a benefit…" Results did not reveal a difference in benefit between
low dose and high dose GIK. Side effects reported were few and relatively
minor, with IV site-specific phlebitis being the most common (2
percent).
"The sample size is very small and perhaps the findings are influenced
by chance," said the study's lead author, Rafael Diaz, MD. "So instead
of looking for the magnitude of the benefit, we should look for
the direction of the benefit. And the direction of the benefit is
consistently positive. "
Diaz is co-director of the cardiovascular medicine division of the
Instituto Cardiovascular de Rosario in Argentina and the co-director
of the ECLA Collaborative Group, which carried out the study. The
trial was not intended to be pilot study but rather to indicate
whether a larger investigation was warranted.
In an editorial in Circulation following the pilot study's published
results in 1998, Carl S. Apstein, MD., professor of medicine and
director of the Cardiac Muscle Research Laboratory at Boston University's
School of Medicine, stated, "The decrease in the death rate is dramatic;
the largest
reduction of just about any intervention that's been tried… The
mechanism of efficacy is also completely different, in that it alters
heart muscle metabolism and biochemistry to protect the region of
the heart deprived of oxygen by a heart attack."
GIK's benefit appears to come from several actions. Animal research
suggests the combination reduces the high concentrations of free
fatty acids during the hyperacute phase of a heart attack. The combination
provides additional glucose, which heart muscles can metabolize
even without oxygen to produce enough energy to help them maintain
their membranes and the integrity of the cellular sodium and potassium
pumps. It also replaces lost potassium as a result of cell damage.
It also may overcome the insulin resistance that occurs during heart
attacks.
In a more recent study, Pol-GIK, however, there was no reduction
in mortality noted. Researchers speculate that the patient acuity
was greater in the ECLA study and advocate larger scale studies
to clarify the results.
The recently released "Guidelines 2000 for Cardiopulmonary Resuscitation
and Emergency Cardiac Care---International Consensus on Science"
in the August 22, 2000 supplement to Circulation, states "GIK
therapy for patients with AMI may be helpful; it is easily administered
and associated with few adverse effects…Before GIK can be widely
recommended, larger clinical trials are needed to further evaluate
its efficacy in a broad patient group with AMI and to identify patient
subgroups for which it may be particularly beneficial (Class Indeterminate).
The GIK combination was first reported as a treatment for heart
attack in 1962 and examined during clinical trial in 1969. Human
study results have been conflicting, historically, despite consistent
benefit being noted in animal studies.
Legislative
News:
Senate Approves Rural Heart Attack Support
The U.S. Senate passed
Senate Bill 2528 on Oct. 10 providing $25 million over three years
to help heart attack victims in rural, public places. The money
from the Rural Access to Emergency Devices Act will go to community
hospitals, police and fire departments, and other emergency care
providers to purchase automated external defibrillators (AED) and
train personnel in their proper use as well as in cardio-pulmonary
resuscitation.
Needlestick Legislation Pending
H.R. 5178 is a measure to require employers to consider and use
safer medical devices, such as needle-less systems and retractable
needles, passed the House Education Subcommittee and the Workforce
Protection Subcommittee on September 19. A companion bill (S. 3067)
was recently introduced in the Senate. The Centers for Disease Control
has estimated that as many as 800,000 health care workers are accidentally
stuck with needles each year, which, as we all know, can expose
us to many nasty bloodborne pathogens. The bill approved by the
House subcommittee would instruct OSHA to amend its 1991 bloodborne
pathogen standard to require health care employers to identify,
evaluate, and (when appropriate) use safer medical devices.
ARB
on the WWW
A new class of drugs, ARBs (Angiotensin II Receptor Blockers), for
the treatment of high blood pressure, may offer hope for patients
with heart failure. Richard W. Smalling, MD., Ph.D., the Jay Brent
Sterling Professor of Cardiovascular Medicine and Co-Director, Division
of Cardiology, University of Texas Medical School at Houston and
Frank A. Laws, MD., Fellow in the Department of Internal Medicine,
Division of Cardiology, author a look at this emerging treatment
at http://www.tdwsyn.com/articles/emerging_treatments/congest_8/
A
Diagnosis 199 Years Later?
The just concluded four-year analysis of strands of Ludwig van Beethoven's
hair suggests lead poisoning could explain at least some of the
ailments, strange behavior, deafness and the eventual death of the
composer. These findings are based on chemical analysis done by
the McCrone Research Institute in Chicago and images taken at Argonne
National Laboratory using an electron accelerator that creates the
most detailed X-rays available.
The testing, headed by the Health Research Institute in suburban
Chicago, revealed lead levels 100 times higher than commonly found
in people today. Many researchers were surprised since their initial
hypothesis centered on mercury poisoning (since mercury was a common
treatment for syphilis at the time and Beethoven was rumored to
be suffering from it).
The hair sample (some 582 strands of gray and brown hair 3-6 inches
long) was acquired by Ira Brilliant, founder of the Center of Beethoven
Studies, and Alfredo Guevara, a surgeon from Nogales, Ariz., in
a 1994 London Sotheby's auction for $7,300. at Sotheby's auction
house in London.
Apparently when Beethoven died at age 56 in 1827, many mourners
took hair from his head as his body was on view in the Vienna apartment
where he had lived at the time. Brilliant reports that Beethoven
was consequently "…practically bald when he was buried." He died
of pneumonia and "abdominal problems"-a common symptom of lead poisoning
Since his 20s, Beethoven suffered abdominal pain, writing to his
brothers some 25 years before his death, asking them to insist that
doctors find the cause after his death.
Lead poisoning may also explain erratic behavior and mood swings
reported--researchers note that the composer was given to "towering
rages" with an unkempt appearance often wearing an oversized tophat
and coat, strolling down streets humming off-key and scribbling
in his
notebook. Deafness is relatively rare but plausible side effect
from lead poisoning.
The Health Research Institute scientists revealed that Beethoven's
lead exposure came as an adult but that the source of the lead is
unclear. Some now suggest the mineral water he swam in and drank
during his stays at spas could have been the source.
The analysis did not find drug metabolites, which indicate Beethoven
avoided painkillers during his long and painful death.
Additional testing is proposed using hair strands collected from
the Beethoven house in Bonn, Germany five or more years prior to
his death.
Some
of the 2000 Ig® Nobel Prize Winners
These awards are given each year to accomplishments that "cannot
or should not be reproduced" by the Journal of improbable Research.
Amongst recent winners:
The 2000 Prize winner for PEACE:
The British Royal Navy. It seems that recruits at a gunnery school
near Plymouth are required to shout "bang" rather than fire real
shells as a move by the Ministry of Defence to save money. By checking
their coordinates, lining up a target, preparing to fire, then shouting
rather than actually launching a round saves 642 British pounds
per shout. Apparently recruits are embarassed and disgusted while
the Ministry figures to save one million pounds this year doing
this.
1999 awards included:
MEDICINE
Dr. Arvid Vatle of Stord, Norway, for carefully collecting, classifying,
and contemplating which kinds of containers his patients chose when
submitting urine samples. (REFERENCE: "Unyttig om urinprøver," Arvid
Vatle, Tidsskift for Den norske laegeforening [The Journal of the
Norwegian Medical Association], no. 8, March 20, 1999, p. 1178.)
MANAGED HEALTH CARE
The late George and Charlotte Blonsky of New York City and San Jose,
California, for inventing a device (US Patent 3,216,423) to aid
women in giving birth -- the woman is strapped onto a circular table,
and the table is then rotated at high speed.
Quotable
Quotes
Dorothy Parker US author, poet, journalist, humorist. (1893-1967)
"I might repeat to myself . . . a list of quotations from minds
profound - if I can remember any of the damn things."
"They sicken of the calm, who knew the storm."
"You can't teach an old dogma new tricks."
"Brevity is the soul of lingerie."
"This is not a novel to be tossed aside lightly. It should be thrown
with great force."
This
e-newsletter is available through the generous unrestricted support
of
ACUTE CARE, INC. You can find out more about ACUTE
CARE, INC.
by going online to http://www.acutecare.com
Archived copies of this newsletter are
available at that site.
If you have questions, concerns or ideas;
Or you have trouble with the display of this e-mail,
please send your message via e-mail to: prairiEDocs@aol.com
If you wish to no longer receive issues of this e-newsletter,
send your
'unsubscribe" message to the same e-mail address.
Return
to the ACUTE CARE home page