Clinical Chemistry 46: 577-581, 2000;
(Clinical Chemistry. 2000;46:577-581.)
© 2000 American Association for Clinical Chemistry, Inc.
Propofol-associated Rhabdomyolysis with Cardiac Involvement in Adults: Chemical and Anatomic Findings
Edward B. Stelow,
Vandita P. Johari,
Stephen A. Smith,
John T. Crosson and
Fred S. Applea
Department of Laboratory Medicine and Pathology, Hennepin County Medical Center, Minneapolis, MN 55415.
a Address correspondence to this author at: Hennepin County Medical Center, Clinical Laboratories (812), 701 Park Ave., Minneapolis, MN 55415. Fax 612-904-4229; e-mail fred.apple{at}co.hennepin.mn.us
 |
Abstract
|
|---|
Propofol, a central-acting sedative agent, has been implicated in the
development of rhabdomyolysis in children. We describe two adults who
developed rhabdomyolysis after receiving high rates of propofol
infusion. Rhabdomyolysis of both skeletal and cardiac muscle was
suggested in both patients by marked increases of creatine kinase
(>170 000 U/L) and cardiac troponin I (11 and 46 µg/L in patients
one and two, respectively). Creatine kinase and cardiac troponin I
values were highly correlated in each patent (r =
0.786 and 0.988 in patients one and two, respectively). Autopsy of one
patient confirmed the diagnosis of skeletal and cardiac
rhabdomyolysis.
 |
Introduction
|
|---|
Rhabdomyolysis is a clinical entity that evolves after skeletal
muscle injury. The symptoms and signs are secondary to muscle injury
and the effects of the release of toxic intracellular contents. They
include muscle weakness, myoglobinuria, and renal failure. The causes
of the initial injury can range from trauma to venom
(1)(2). Drug-induced rhabdomyolysis has been
reported as resulting from many possible agents, including the use of
propofol for sedation of children in the intensive care unit
(3)(4)(5)(6)(7)(8). We present two cases in which adults developed
rhabdomyolysis after receiving high infusion rates of propofol for
extended periods of time. We use chemical and anatomic findings to
demonstrate rhabdomyolysis secondary to both skeletal and cardiac
muscle injury and secondary acute renal failure.
 |
Case Reports
|
|---|
case 1
The patient was a 47-year-old white woman with a long history of
steroid-dependent asthma for which she had been intubated twice
previously. She presented after worsening shortness of breath at home
that had not been relieved with multiple nebulizer treatments. Her past
medical history was significant for obesity, depression,
gastroesophageal reflux disorder, herniorrhaphy, cholecystectomy, and
steroid-induced myopathy. She had no known drug allergies. She was
medicated at home with theophylline, prednisone, albuterol, and
zafirlukast. Upon reaching the emergency department
(ED)1
she had one-word dyspnea that was not relieved with nebulizer
therapy. She was hypertensive, tachycardic, and tachypneic; however,
she was afebrile. Her oxygen saturation while receiving oxygen therapy
by face-mask was 8792% before it rapidly began to worsen. It
improved quickly after a difficult intubation that lasted nearly 10
min. The patient received intravenous corticosteroids, midazolam,
albuterol, vecuronium, and succinylcholine in the ED. She also received
lidocaine for multiple premature ventricular contractions after her
hypoxic episode. An electrocardiogram taken at that time was without
signs of infarct or ischemia. Because of a possible infiltrate on her
chest x-ray and an increased white blood cell count, the patient
received ceftriaxone. She was admitted to the medical intensive care
unit (MICU) where she was treated with albuterol, ipratropium,
intravenous corticosteroids, ceftriaxone, and theophylline. Propofol
was used for sedative purposes and was to be "titrated to desired
effect". She remained afebrile and was stable with good urine output
throughout the next day while her propofol was infused at 200
µg · kg-1 · min-1.
An attempt to wean her ventilator support was unsuccessful. The next
morning, the patient was afebrile and stable. Her chest x-ray
demonstrated a possible worsening infiltrate, and her antibiotic was
changed to trovafloxacin. In the morning, serum creatinine and urea did
not demonstrate change in renal function. Later that morning, her urine
darkened and was positive for blood by reagent strip. No cells were
seen. Her creatine kinase (CK) activity (Fig. 1A
) was increased at 3900
U/L (reference interval, 40200 U/L). Her cardiac troponin I (cTnI)
concentration (Fig. 1A
) was within the reference interval (<0.8
µg/L). She was treated with fluid, diuretics, and bicarbonate
therapy. In the afternoon, hyperkalemia, increased creatinine,
metabolic acidosis, and hypocalcemia were present. Her CK activity,
measured 11 h after the first, was 171 000 U/L, reflecting a
50-fold increase, and her cTnI concentration was increased at 1.4
µg/L. Her urine output decreased, and she became anuric early the
next morning. Throughout the day, she was treated with diuretics, fluid
replacement, calcium replacement, and bicarbonate therapy. Her white
blood cell count increased. She became hypotensive and required
dopamine and phenylephrine. Her creatinine concentration continued to
increase, and her hyperkalemia and metabolic acidosis worsened. The
following morning, propofol was discontinued; her serum CK was 762 000
U/L and her cTnI concentration was 4.0 µg/L. With her worsening
hyperkalemia, arrhythmias and episodes of ventricular tachycardia
developed, followed by cardiac arrest. Severe hypotension persisted for
15 min before a supraventricular rhythm was re-established.
Hemodialysis was started to treat severe hyperkalemia. During this
time, her temperature rose to 103.1 °F. She was treated with
continuous hemodialysis, calcium, bicarbonate, and phenylephrine and
was given dantrolene for possible malignant hyperthermia. Her
hyperkalemia worsened nonetheless. Supportive therapy was continued
through the night. The following morning, neurology was consulted, who
deemed return of previous neurologic status very unlikely because of
major anoxic brain injury. Supportive therapy was withdrawn, and the
patient expired. Autopsy was performed.
case 2
The patient was a 41-year-old white man with a history of asthma
for which he had been admitted multiple times but had never been
intubated. He presented with worsening shortness of breath that had not
been relieved at home with his metered-dose inhalers. Other than his
asthma, he had no known medical problems or drug allergies. At home, he
was medicated with albuterol, theophylline, zafirlukast, and
fludrocortisone, although there was some question of his compliance. He
complained of a 1-day history of worsening shortness of breath but did
not complain of any symptoms of infection. He was hypertensive and
afebrile. Arterial blood gas analysis in the ED demonstrated
hypercapnia and acidosis. He was intubated without complication and
received ketamine, intravenous corticosteroids, lorazepam, and
vecuronium throughout his time in the ED before being admitted.
In the MICU, he was placed on propofol infusion to maintain sedation
and received ipratropium, albuterol, and intravenous corticosteroids.
He remained stable and afebrile throughout his first and second days.
On day 2, he was started on low-molecular weight heparin for deep
venous thrombosis prophylaxis. On his third day in the MICU, he was
afebrile and stable. Fentanyl was added for analgesic purposes. He
required propofol infusion at 222
µg · kg-1 · min-1
to maintain sedation for 4 h. On day 4, trovafloxacin was added
for a possible infiltrate on his chest x-ray. He remained afebrile with
stable vital signs and good urine output. On day 5 in the MICU, his CK
activity was 3800 U/L (Fig. 1B
; reference interval, 60300 U/L) in the
morning, an increase from 980 U/L the day before. By the afternoon, it
was 8090 U/L. Diuretic and fluid therapy was begun after it was noticed
that his urine was brown and positive for blood by reagent strip. He
was oliguric for a short time, but responded well to diuretic and fluid
therapy. Propofol was weaned and discontinued the following morning.
His serum myoglobin concentration was increased at 6800 µg/L
(reference interval, 085 µg/L). Over the next 4 days, the
patients CK activity and cTnI concentration (Fig. 1B
) continued to
rise to maximum values of 204 000 U/L and 46 µg/L, respectively.
Echocardiography demonstrated globally reduced left ventricular
function without a focal lesion. His CK activity and cTnI concentration
returned to normal over the next few days.
 |
Materials and Methods
|
|---|
CK activity was measured with a Vitros analyzer (Johnson &
Johnson). The reference (normal) intervals were 60300 U/L (males) and
40200 U/L (females) (9). cTnI was measured on plasma or
serum using the Stratus II (Dade Behring). The reference (normal)
interval was <0.8 µg/L (10). Myoglobin concentrations
were measured at an outside facility by immunoassay with a reference
interval of 085 µg/L.
An autopsy was performed on patient 1. Representative tissue sections
from the lungs, heart, skeletal muscle, and kidneys were fixed in
formalin, processed routinely, and embedded in paraffin. All tissues
were stained by hematoxylin and eosin and examined by light microscopy.
Statistical analysis was performed using regression analysis on
StatView 4.1 on a power Macintosh 6000 computer.
 |
Results
|
|---|
CK activities and cTnI concentrations increased in patient 1 (Fig. 1
A) and patient 2 (Fig. 1B
) after propofol infusions. In both
patients, CK activities and cTnI concentrations were highly correlated
(r = 0.786 and 0.988, respectively).
Microscopic examination of the skeletal muscle from patient 1 showed a
disorganization of myofibrils and sarcomeres (Fig. 2
). Most of the muscle fibers showed an acute necrotic reaction
with swelling, loss of striations, and vacuoles. Many nuclei had
degenerated. No inflammatory response was present, and vessels were
intact. Sections of the heart revealed numerous focal areas of
myofibril degeneration surrounded by an acute inflammatory reaction
with macrophages and neutrophils (Fig. 3
). Sections through the kidneys showed the presence of reddish
brown pigment casts (myoglobin casts) in >50% of the tubular lumens.
The tubules were dilated with a marked effacement of the brush border,
suggesting severe acute tubular necrosis (Fig. 4
).

View larger version (121K):
[in this window]
[in a new window]
|
Figure 2. Hematoxylin and eosin stain of skeletal muscle (x125)
demonstrating an acute necrotic reaction with swelling, loss of
striation, and vacuole formation.
|
|

View larger version (126K):
[in this window]
[in a new window]
|
Figure 3. Hematoxylin and eosin stain of cardiac muscle (x288)
demonstrating an acute necrotic reaction with swelling, loss of
striation, and vacuole formation with mild acute inflammation.
|
|

View larger version (133K):
[in this window]
[in a new window]
|
Figure 4. Hematoxylin and eosin stain of the kidney (x125)
demonstrating myoglobin casts and acute tubular necrosis.
|
|
 |
Discussion
|
|---|
These two cases of rhabdomyolysis occurred after high rates of
infusion of propofol (200222
µg · kg-1 · min-1).
The propofol package insert states a range of infusion necessary for
sedation of MICU patients with chronic obstructive pulmonary disease or
asthma of 1775
µg · kg-1 · min-1
(n = 49) (11). A review of the literature found that
rates between 1 and 142
µg · kg-1 · min-1
had been used, with rates >100
µg · kg-1 · min-1
being uncommon (12)(13).
Propofol, a central nervous system sedative that interacts with
-aminobutyric acid aminotransferase receptors (14), has
been implicated in the development of rhabdomyolysis in children
(4)(5)(6)(8). In these cases, the children were
intubated for respiratory distress or seizures and were sedated with
continuous infusion of propofol. The maximal infusion rate in these
cases was between 133 and 449
µg · kg-1 · min-1.
That these events occurred in children and not in adults was postulated
to be because children generally require higher rates of infusion than
adults. It should be noted that propofol is not recommended for
sedation of children in the ICU setting (15).
In our cases, the clinical diagnoses of rhabdomyolysis were made after
the patients were noted to have dark urine. Urinalysis of both patients
was positive for blood by reagent strip likely secondary to the passage
of myoglobin through the glomerulus (1)(2).
Indeed, serum myoglobin was found to be extremely increased in patient
2 (6800 µg/L). CK activity was severely increased in both cases
(maximum, 762 000 U/L in case 1 and 204 000 U/L in case 2). Increased
CK activity is essential for the diagnosis of rhabdomyolysis in cases
in which no trauma has occurred, and it reflects the leakage of that
enzyme out of the injured myocytes (1)(2).
Injury to the myocardium was demonstrated in both cases by increases in
the concentrations of cTnI (maximum, 11.6 µg/L in case 1 and 46.4
µg/L in case 2). cTnI is found exclusively in cardiac muscle
(16). Increased concentrations of cTnI in serum, even during
skeletal muscle injury, are indicative of cardiac muscle injury
(16)(17)(18)(19). Cardiac involvement in rhabdomyolysis has been
noted, although it has not been demonstrated using serum chemistry
results (20). Nor has cardiac injury been demonstrated in
the cases of propofol-induced rhabdomyolysis in children
(4)(5)(6)(8).
Myopathic changes secondary to pharmacotherapy and the further
development of rhabdomyolysis have been well documented
(21)(22)(23)(24)(25)(26)(27)(28)(29). The anatomic findings in case 1 support this
etiology because there was such ubiquitous involvement of skeletal and
cardiac muscle. The lack of inflammatory infiltrate confirms the acuity
of this process. The findings in the kidneys are secondary to muscle
destruction because myoglobin is nephrotoxic and depletes renal adenine
nucleotide pools and inhibits proximal tubular cell proliferation
(30)(31). The severe renal involvement in case 1
gives evidence of the massive rhabdomyolysis that occurred.
The etiology of the rhabdomyolytic process in both of our cases is more
difficult to establish. In general, there are many possible etiologies
of rhabdomyolysis, the most common being trauma, seizure, and alcohol
use (1)(2). Infection, drugs, and toxins have
also been implicated
(1)(2)(3)(4)(5)(6)(7)(8)(21)(22)(23)(24)(25)(26)(27)(28)(29)(32)(33)(34)(35)(36)(37)(38)(39). Neither of
our cases had a history or evidence of trauma. Although patient 1
experienced an hypoxic event in the ED, it seems very unlikely that
this could have caused rhabdomyolysis. Both patients had otherwise
stable oxygen and hemodynamic status before they developed
rhabdomyolysis. Infection was considered in both cases, and it can
predispose asthmatics to bronchospasm. In addition, patients who are
intubated are at increased risk for infection. Neither of our patients
developed a clinically obvious infection, however, and the anatomic
findings in patient 1 did not suggest infection. Furthermore, neither
patient showed the signs of the degree of infection one would expect to
account for the overwhelming rhabdomyolysis that developed.
Both patients were given multiple medications throughout their stay in
the MICU before they developed rhabdomyolysis. Steroids, vecuronium,
succinylcholine, and theophylline have all been implicated in the
development of rhabdomyolysis
(2)(3)(24)(27)(33)(34)(35)(36)(37)(38)(39).
Neither of our patients received excessive doses of any of these
medications, and the myopathy that has been demonstrated with most of
those drugs seems insufficient to have caused the massive
rhabdomyolysis that occurred in our two patients.
In both cases, it is essential to consider the use of corticosteroids,
especially because the first patient we presented had a history of
steroid myopathy. The acute and necrotizing myopathy that can develop
in patients who receive high doses of corticosteroids for asthma in the
MICU has been well documented (33)(34)(35)(36)(37)(38)(39). This myopathy may be
induced by the subsequent infusion of neuromuscular-blocking agents,
although it has also been described in patients who received subsequent
infusions of propofol alone (35). That none of those
patients developed the severe rhabdomyolysis that occurred in our
patients may be attributable to the higher doses of propofol that our
patients received. If these cases developed in part because of the
corticosteroid treatment given, it might support the theory of
"priming" and "triggering" factors. In such a case, high-dose
propofol would be the myotoxic triggering factor after substantial
priming factors have occurred (36).
Consistent with the role of propofol in the development of
rhabdomyolysis in our two cases are the facts (a) that cases
of propofol-induced rhabdomyolysis have been reported in children who
require higher rates of infusion than adults; (b) that the
adults in our cases required higher rates of infusion than are typical;
and (c) that there is no other sufficient cause to explain
the rhabdomyolysis that developed in our cases. How propofol infusion
is related to subsequent development of rhabdomyolysis remains unclear.
It appears to be idiosyncratic and dose-related and may be potentiated
in the critical care setting by the use of high-dose steroids in
asthmatic patients.
 |
Footnotes
|
|---|
1 Nonstandard abbreviations: ED, emergency department; MICU, medical intensive care unit; CK, creatine kinase; and cTnI, cardiac troponin I. 
 |
References
|
|---|
-
Gabow PA, Kaehny WD, Kelleher SP. The spectrum of rhabdomyolysis. Medicine 1982;61:141-152.[Medline]
[Order article via Infotrieve]
-
Slater MS, Mullins RJ. Rhabdomyolysis and myoglobinuric renal failure in trauma and surgical patients: a review. J Am Coll Surg 1998;186:693-716.[ISI][Medline]
[Order article via Infotrieve]
-
Carry SC, Chang D, Connor D. Drug- and toxin-induced rhabdomyolysis. Ann Emerg Med 1989;18:1068-1094.[ISI][Medline]
[Order article via Infotrieve]
-
Hanna JP, Ramundo ML. Rhabdomyolysis and hypoxia associated with prolonged propofol infusion in children. Neurology 1998;50:301-303.[Abstract/Free Full Text]
-
Neff SPW, Futter ME, Anderson BJ. Fatal outcome after propofol sedation in children [Letter]. Anaesth Intensive Care 1997;25:581-582.[ISI][Medline]
[Order article via Infotrieve]
-
Plotz FB, Waalkens HJ, Verkade HJ, Strengers JLM, Knoester H, Mandema JM. Fatal side-effects of continuous propofol infusion in children may be related to malignant hyperthermia [Letter]. Anaesth Intensive Care 1996;24:724.[Medline]
[Order article via Infotrieve]
-
Prendergast BD, George CF. Drug-induced rhabdomyolysismechanisms and management. Postgrad Med J 1993;69:333-336.[ISI][Medline]
[Order article via Infotrieve]
-
van Straaten EA, Hendriks JJE, Ramsey G, Vos GD. Rhabdomyolysis and pulmonary hypertension in a child, possible due to long-term high-dose propofol infusion [Letter]. Intensive Care Med 1996;22:997.
-
Apple FS, Preese LM. Creatine kinase MB: detection of acute myocardial infarction and monitoring reperfusion. J Clin Immunoassay 1994;17:24-29.
-
Apple FS, Falahati A, Paulson PR, Miller EA, Sharkey SW. Improved detection of minor ischemic myocardial injury with measurement of serum cardiac troponin I. Clin Chem 1997;43:2047-2051.[Abstract/Free Full Text]
-
. Zeneca Pharmaceuticals. Diprivan professional information brochure 1996 Zeneca Pharmaceuticals Wilmington, DE. .
-
Fulton B, Sorkin E. Propofol: an overview of its pharmacology and a review of its clinical efficacy in intensive care sedation. Drugs 1995;5:636-657.
-
Lund M, Papadakos P. Barbiturates, neuroleptics, and propofol for sedation. Crit Care Clin 1995;4:875-886.
-
Uchida I, Li L, Yang J. The role of GABA (A) receptor
1 subunit N-terminal extracellular domain in propofol potentiation of chloride current. Neuropharmacology 1997;36:1611-1621.[ISI][Medline]
[Order article via Infotrieve]
-
. Zeneca Pharmaceuticals. Diprivan® 1%. Physicians desk reference 52nd ed. 1998:3157-3163 Medical Economics Montvale, NJ. .
-
Bodor GS, Porterfield D, Voss E, Smith S, Apple FS. Cardiac troponin I is not expressed in fetal and adult human skeletal muscle tissue. Clin Chem 1995;41:1710-1715.[Abstract]
-
Benoist J, Cossen C, Mimoz O, Edouard A. Serum cardiac troponin I, creatine kinase (CK), and CK-MB in early posttraumatic rhabdomyolysis [Letter]. Clin Chem 1997;43:416-417.[Free Full Text]
-
Lavoinne A, Hue G. Serum cardiac troponin I and T in
early posttraumatic rhabdomyolysis [Letter]. Clin Chem
1998;44:6678..
-
Lofberg M, Tahtala R, Harkonen M, Somer H. Cardiac troponins in severe rhabdomyolysis [Letter]. Clin Chem 1996;42:1120-1121.[Free Full Text]
-
Tuller MA. Acute myoglobinuria with or without drug usage [Letter]. JAMA 1971;217:1868.[Medline]
[Order article via Infotrieve]
-
Estes ML, Ewing-Wilson D, Chou SM, Mitsumoto H, Hanson M, Shirey E, Ratliff N. Chloroquine neuromyotoxicity. Am J Med 1987;82:447-455.[Medline]
[Order article via Infotrieve]
-
Klinkerfuss G, Bleisch V, Dioso MM, Perkoff GT. A spectrum of myopathy associated with alcoholism. II. Light and electron microscopic observations. Ann Intern Med 1967;67:493-510.
-
Kuncl RW, Duncan G, Watson D, Alderson K, Rogawski MA, Peper M. Colchicine myopathy and neuropathy. N Engl J Med 1987;316:1562-1568.[Abstract]
-
MacDonald JB, Jones HM. Rhabdomyolysis and acute renal failure after theophylline overdose [Letter]. Lancet 1985;1:932-933.[ISI][Medline]
[Order article via Infotrieve]
-
Mhiri C, Baudrimont M, Bonne G. Zidovudine myopathy. A distinctive disorder associated with mitochondrial dysfunction. Ann Neurol 1991;29:606-614.[ISI][Medline]
[Order article via Infotrieve]
-
Rosai J. Ackermans surgical pathology, 8th ed. St
Louis: Mosby, 1996:2411pp..
-
Ryan JF, Kagan LF, Hyman AI. Myoglobinuria after a single dose of succinylcholine. N Engl J Med 1971;285:824-827.
-
Schwartzfarb L, Singh G, Marcus D. Heroin-associated rhabdomyolysis with cardiac involvement. Arch Intern Med 1977;137:1255-1257.[Abstract]
-
Silver RM, Heyes MP, Maize JC, Quearry B, Vionnet-Fuasset M, Sternberg EM. Scleroderma, fasciitis, and eosinophilia associated with the ingestion of tryptophan. N Engl J Med 1990;332:874-881.
-
Iwata M, Zager RA. Myoglobin inhibits proliferation of cultured human proximal tubular (HK-2) cells. Kidney Int 1996;50:796-804.[ISI][Medline]
[Order article via Infotrieve]
-
Zager RA. Myoglobin depletes renal adenine nucleotide pools in the presence and absence of shock. Kidney Int 1991;39:111-119.[ISI][Medline]
[Order article via Infotrieve]
-
Singh U, Scheld M. Infectious etiologies of rhabdomyolysis: three cases and a review. Clin Infect Dis 1996;22:642-649.[ISI][Medline]
[Order article via Infotrieve]
-
Douglass JA, Tuxen DV, Horne M, Scheinkestel CD, Weinmann M, Czarny D, Bowes G. Myopathy in severe asthma. Am Rev Respir Dis 1992;146:517-519.[ISI][Medline]
[Order article via Infotrieve]
-
Faragher MW, Day B, Dennett X. Critical care myopathy: an electrophysiological and histological study. Muscle Nerve 1996;19:516-518.[ISI][Medline]
[Order article via Infotrieve]
-
Hanson P, Alain D, Brucher J, Bisteau M, Dangoisse M, Deltombe T. Acute corticosteroid myopathy in intensive care patients. Muscle Nerve 1997;20:1371-1380.[ISI][Medline]
[Order article via Infotrieve]
-
Hund E. Myopathy in critically ill patients. Crit Care Med 1999;27:2544-2547.[ISI][Medline]
[Order article via Infotrieve]
-
Macfarlane IA, Rosenthal FD. Severe myopathy after status
asthmaticus [Letter]. Lancet 1977;ii:615..
-
Van Marle W, Woods KL. Acute hydrocortisone myopathy. Br Med J 1980;281:271-272.
-
Williams T, OHehir RE, Czarny D, Horne M, Bowes G. Acute myopathy in severe asthma treated with intravenously administered corticosteroids. Am Rev Respir Dis 1988;137:460-463.[ISI][Medline]
[Order article via Infotrieve]
The following articles in journals at HighWire Press have cited this article:

|
 |

|
 |
 
S. M. Corbett and J. A. Rebuck
Medication-Related Complications in the Trauma Patient
J Intensive Care Med,
March 1, 2008;
23(2):
91 - 108.
[Abstract]
[PDF]
|
 |
|

|
 |

|
 |
 
P. Ypsilantis, M. Politou, D. Mikroulis, M. Pitiakoudis, M. Lambropoulou, C. Tsigalou, V. Didilis, G. Bougioukas, N. Papadopoulos, C. Manolas, et al.
Organ Toxicity and Mortality in Propofol-Sedated Rabbits Under Prolonged Mechanical Ventilation
Anesth. Analg.,
July 1, 2007;
105(1):
155 - 166.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
I. Sabsovich, Z. Rehman, J. Yunen, and G. Coritsidis
Propofol Infusion Syndrome: A Case of Increasing Morbidity With Traumatic Brain Injury
Am. J. Crit. Care.,
January 1, 2007;
16(1):
82 - 85.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
H. C. Suen, R. J Haake, V. M Chavez, and S. A Hayat
A Lethal Complication of Propofol
Asian Cardiovasc Thorac Ann,
February 1, 2006;
14(1):
60 - 62.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
L. Babuin and A. S. Jaffe
Troponin: the biomarker of choice for the detection of cardiac injury
Can. Med. Assoc. J.,
November 8, 2005;
173(10):
1191 - 1202.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
J. H.E. Ireland, C. H. Eggert, C. J. Arendt, and A. W. Williams
Rhabdomyolysis with Cardiac Involvement and Acute Renal Failure in a Patient Taking Rosuvastatin and Fenofibrate
Ann Intern Med,
June 7, 2005;
142(11):
949 - 950.
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
J. A. Simpson, R. Labugger, G. G. Hesketh, C. D'Arsigny, D. O'Donnell, N. Matsumoto, C. P. Collier, S. Iscoe, and J. E. Van Eyk
Differential Detection of Skeletal Troponin I Isoforms in Serum of a Patient with Rhabdomyolysis: Markers of Muscle Injury?
Clin. Chem.,
July 1, 2002;
48(7):
1112 - 1114.
[Full Text]
[PDF]
|
 |
|