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Plasmapheresis in a patient with rhabdomyolysis: a case report.
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MedLine Citation:
PMID:  19918458     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
INTRODUCTION: Cardiovascular benefits and improved survival have resulted in statins becoming the most prescribed drugs in USA. There is a small but significant risk of developing statin induced rhabdomyolysis especially in combination with other lipid lowering medications for example fibrates like Gemfibrozil.
CASE PRESENTATION: We describe a case of an 82 year old male patient who developed rhabdomyolysis while taking a combination of Simvastatin and Gemfibrozil and was successfully managed with plasmapheresis.
CONCLUSION: There are only a few cases of rhabdomyolysis treated with plasmapheresis reported in literature. Most of the case reports of using this technique in rhabdomyolysis have been from Asia, Australia and Europe. We suggest that plasmapheresis may be considered as an option in severe life threatening rhabdomyolysis.
Authors:
Rohina Swaroop; Raja Zabaneh; Nakul Parimoo
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Publication Detail:
Type:  Journal Article     Date:  2009-08-12
Journal Detail:
Title:  Cases journal     Volume:  2     ISSN:  1757-1626     ISO Abbreviation:  Cases J     Publication Date:  2009  
Date Detail:
Created Date:  2009-11-17     Completed Date:  2011-01-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101474272     Medline TA:  Cases J     Country:  England    
Other Details:
Languages:  eng     Pagination:  8138     Citation Subset:  -    
Affiliation:
Northwest Louisiana Nephrology 1800 Buckner Street, Suite C-120, Shreveport, LA 71101 USA. rohina123@gmail.com
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Journal Information
Journal ID (nlm-ta): Cases J
ISSN: 1757-1626
Publisher: Cases Network Ltd
Article Information
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? 2009 Swaroop et al.; licensee Cases Network Ltd.
open-access:
Received Day: 03 Month: 6 Year: 2009
Accepted Day: 15 Month: 7 Year: 2009
Electronic publication date: Day: 12 Month: 8 Year: 2009
collection publication date: Year: 2009
Volume: 2E-location ID: 8138
PubMed Id: 19918458
DOI: 10.4076/1757-1626-2-8138
Publisher Id: 8138

Plasmapheresis in a patient with rhabdomyolysis: a case report
Rohina Swaroopaff1 Email: rohina123@gmail.com
Raja Zabanehaff1 Email: RZ@aol.com
Nakul Parimooaff1 Email: nparimoo@gmail.com
Northwest Louisiana Nephrology1800 Buckner Street, Suite C-120, Shreveport, LA 71101USA

Introduction

Acute rhabdomyolysis is a syndrome characterized by the breakdown of skeletal muscle resulting in subsequent release of intracellular contents into the circulatory system, which can cause potentially lethal complications. These contents include myoglobin, potassium, aldolase, lactate dehydrogenase, creatine phosphokinase and glutamic oxaloacetic transaminase.

Acute renal failure is one of the most common complications of rhabdomyolysis. HMG-CoA reductase inhibitors are the most commonly prescribed lipid lowering medications. Induced deficiency of Co-enzyme Q, a mitochondrial and lipid membrane antioxidant and a cofactor in mitochondrial ATP production has been proposed as the possible cause for statin related muscle injury.

The traditional management of rhabdomyolysis induced acute renal failure includes aggressive intravenous fluid resuscitation, use of mannitol and bicarbonate is also notable for reducing risk of ARF. However evidence has not really proven benefit of these measures over use of intravenous fluid administration. Standard hemodialysis techniques have limited ability to remove circulating myoglobin (proposed reasons for this, see under Discussion).

There is a paucity of literature regarding use of plasmapheresis in rhabdomyolysis. The available literature is detailed/ reviewed in the Discussion section of this article.


Case presentation

An 82 year old white male was admitted with 10 day history of severe, continuous myalgia and proximal muscle weakness. He denied vigorous physical exercise, heat exposure, alcohol or recreational drug abuse. He reports no other specific complaints.

His medications Simvastatin 80 mg qhs, Metoprolol extended release 25 mg once daily, Hydrocodone/Acetaminophen 7.5/500 mg p.r.n. for pain, cyclobenzaprine 10 mg t.i.d. p.r.n. for muscle spasms and lisinopril 10 mg once daily. He had been on simvastatin for many years, pertinent to note that Gemfibrozil 600 mg b.i.d. had been started a month ago. He reports no significant food or drug allergies.

Past medical/surgical history of viral cardiomyopathy 5 years back, migraines, obstructive sleep apnea, shoulder and foot surgery, appendecectomy, Cervical and lumbosacral spondylosis status post laminectomy , BPH status post transurethral resection of prostate and non melanotic skin cancer. Family history significant for hypertension.

On admission serum K 5.9, Na 132, BUN 73, Cr 2.2, albumin 2.7, chloride 98, CO2 21, CBC was within normal limits (Table 1) CK was 41368 on presentation (n=35-232 U/L), ALT was 1293 (n=30-65U/L) AST 1439 (n=15-37) phosphorus 5.4, calcium 9.5. UA showed 3+ occult blood with only 4-10 RBCs per high power field.

Acute renal failure and abnormal liver function tests secondary to rhabdomyolysis was diagnosed. Simvastatin and Gemfibrozil were stopped and he was started on aggressive alkaline intravenous fluid resuscitation. In light of the elevated potassium and ARF, ACE-I was also stopped.

By hospital day 4 creatinine kinase rose to 86400, BUN 82, Cr 2, ALT 930 and AST 1326. UA showed 3+occult blood with no red blood cells on microscopic examination. He became oliguric; plasmapheresis with one and a half volume replacement with albumin was started at this point in addition to hemodialysis. The patient received plasmapheresis daily for 5 days in addition to hemodialysis

Patient was discharged to Physical Medicine and Rehabilitation at Day 30, he remained off dialysis and plasmapheresis and was discharged in stable ambulatory status.

Approximately 6 months after this episode all laboratory parameters were within normal limits, he remained at baseline health as well as functional status. Approximately 4 years after this episode, at his last outpatient nephrology clinic visit all his laboratory values remain within normal limits and he maintains baseline health and functional status.

Omega-3 fish oil supplements, diet and lifestyle changes were used to treat his abnormal lipid profile, statins and fibrates were avoided due to this episode and also due to patient?s desire that he not be treated with either of the two medications. It is pertinent to note that his last lipid profile meets ATP III guideline goals.


Discussion

Acute rhabdomyolysis is characterized by the breakdown of skeletal muscles resulting in subsequent release of intracellular contents into the circulatory system, which can cause potentially lethal complications. These contents include myoglobin, potassium, aldolase, lactate dehydrogenase, creatine phosphokinase and glutamic -oxaloacetic transaminase.

A potentially lethal complication of rhabdomyolysis is acute renal failure. 3 hydroxy-3- methyl glutaryl coenzyme A (HMG -CoA) reductase inhibitors are among the most commonly prescribed drugs in the USA. Upto 5% of patients taking statins may have muscle related complaints, typically myalgias; however myositis and rhabdomyolysis do occur.

Induced deficiency of Co-enzyme Q which is a mitochondrial and lipid membrane antioxidant and cofactor in mitochondrial ATP production has been proposed as a possible cause for statin related muscle injury.

When combined with gemfibrozil, all statins except fluvastatin have been associated with reports of rhabdomyolysis, it is pertinent to this case that gemfibrozil was added to simvastatin resulting in rhabdomyolysis [1-3]. Although the reason for the increased risk of rhabdomyolysis with combination therapy is not clear, a possible explanation is that gemfibrozil increases serum concentration of active statin acids, the risk of statin induced myopathy is enhanced in the elderly [3], note that this patient is 82 years old. Risk of ARF after rhabdomyolysis has been estimated to be between 17 % and 35 % [4,5].

Management of myoglobinuric acute renal failure includes aggressive intravenous fluid (typically alkaline) administration to restore the hypovolemia. While mannitol and bicarbonate are considered standard care in preventing acute renal failure in these patients the available evidence suggests that that there is no benefit over and above aggressive fluid resuscitation [5,6].

The techniques and devices used for classic dialytic technique have displayed a limited capacity for the removal of circulating myoglobin [6]; myoglobin?s non-spherical shape and electrical charge make it a solute with an Einstein-Stokes radius greater than expected. This results in low diffusion coefficient, requiring transport by convection; myoglobin also possesses a steric magnitude that is likely to be rejected by most high flux dialyzer membrane pores.

Literature containing use of plasmapheresis in rhabdomyolysis is scarce and anecdotal.

Ronco [6] reported that attempts to use plasmapheresis in myoglobinemia have resulted in higher sieving coefficients, but notes limitations due to low volume exchanges.

Kuroda et al [7] reported successful treatment by plasma exchange of acute renal failure, DIC and multiorgan damage associated with extensive muscle damage.

Paaske et al [8] reports on a patient with acute compartment syndrome causing rhabdomyolysis, ARF, and was successfully managed with plasmapheresis.

Cornellisen et al [9] evaluated 4 patients with rhabdomyolysis. The results showed that a single 2 liter plasma exchange has no beneficial effects in the treatment of patients with rhabdomyolysis. It is prudent to note only one plasma exchange was done; all other case reports have used multiple daily exchanges.

Yang et al [10] used plasma exchange in a case of rhabdomyolysis complicated with increased serum Bezafibrate level .They advocated that Bezafibrate being highly protein bound is unlikely to be cleared by hemodialysis .They suggested that plasma exchange is safe and effective in addition to supportive care for rhabdomyolysis associated with excessive Bezafibrate.


Conclusion

Rhabdomyolysis is a potentially life threatening condition that should be suspected in all patients on statins presenting with myalgias. Patients on combination therapy with other medications like Gemfibrozil have a higher risk of developing it.

We learn from this case that physicians should be vigilant regarding this potentially lethal adverse effect, laboratory follow up should be maintained on liver function and muscle enzyme levels. Physicians must ensure that the patient is appropriately educated about potential adverse reactions including rhabdomyolysis before prescribing these medications. A well informed patient can notify his physician in a timely fashion, thereby potentially avoiding a life-threatening complication.

In this case especially keeping in mind the steady reduction in toxic muscle enzyme levels with use of plasmapheresis , we recommend that plasma exchange be considered in cases of severe rhabdomyolysis and acute renal failure not responding to the standard medical management of intravenous fluid resuscitation.


Notes
Consent

Written informed consent was obtained from the patient for publication of this case report and accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal

Competing interests

The authors declare that they have no competing interests.

Authors? contributions

RS analyzed and interpreted the patient?s data regarding the disease. RS was a major contributor in writing the manuscript. RZ helped in the literature search of the disease and the technique and also provided technical support during the writing of the manuscript.NP helped in the editing and writing of the manuscript and also helped in the data collection and interpretation. All authors read and approved the final manuscript.


References
Bolego C,Baetia R,Belosta S,Corsini A,Paoletti R. Safety considerations for statinsCurr Opin LipidolYear: 20021366376441244188810.1097/00041433-200212000-00007
Thompson PD,Clarkson P,Karas RH. Statin associated myopathyJAMAYear: 2003289168116901267273710.1001/jama.289.13.1681
Shek A,Ferril MJ. Statin-fibrate combination therapyAnn PharmacotherYear: 2001359089171148514410.1345/aph.10315
Ward MM. Factors predictive of acute renal failure in rhabdomyolysisArch Intern MedYear: 198814815531557338230110.1001/archinte.148.7.1553
Huerta-Alard?n AL,Varon J,Marik PE. Bench-to-bedside review: Rhabdomyolysis - an overview for cliniciansCrit CareYear: 2005921581691577407210.1186/cc2978
Ronco C. Extracorporeal therapies in acute rhabdomyolysis and myoglobin clearanceCrit CareYear: 200592R90951577406410.1186/cc3055
Kuroda M,Katsuki K,Uehara H,Kita T,Asaka S,Myazaki R,Akiyama T,Tofuku Y,Takeda R. Successful treatment of fulminating complications associated with extensive rhabdomyolysis by plasma exchangeArtif OrgansYear: 198154372378732587910.1111/j.1525-1594.1981.tb04019.x
Paaske WP,Bagl P,Lorentzen JE,Olgaard K. Plasma exchange after revascularization compartment syndrome with acute toxic nephropathy caused by rhabdomyolysisJ Vasc SurgYear: 198876757758337361610.1067/mva.1988.avs0070757
Cornelissen JJ,Haanstra W,Haarman HJ,Derksen RH. Plasma exchange in rhabdomyolysisIntensive Care MedYear: 198915528529260704010.1007/BF00273565
Yang KC,Fang CC,Su TC,Lee YT. Treatment of fibrate-induced Rhabdomylysis with plasma exchange in ESRDAm J Kidney DisYear: 2005453e57e601575426510.1053/j.ajkd.2004.12.003

Abbreviations
ACE-I angiotensin converting enzyme inhibitors
ALT alanine amino transferase
ARF acute renal failure
AST aspartate aminotransferase
BUN blood urea nitrogen
CBC complete blood count
CK creatine kinase
CO2 carbon dioxide
Cr creatinine
HMG -CoA 3 hydroxy-3 methyl-glutaryl-coenzyme A
K potassium
Na sodium
RBC red blood corpuscles
UA urine analysis

Tables
[TableWrap ID: tbl-001] Table 1. 

Patient?s laboratory values from day 1 to day 30


Day Creatinine Kinase BUN SGPT(ALT) SGOT(AST) Albumin Calcium Creatinine Potassium
1 41368 73 1293 1439 2.7 9.5 2.2 5.9
2 26477 70 1441 1660 2.3 8.7 2.2 5.2
3 45504 62 1585 1842 2.1 8.3 1.8 3.8
4* 86400 82 930 1326 3.3 7.2 2.6 3.6
5 85578 105 983 996 2.9 5.5 2.3 4.1
6 29698 56 839 769 2.9 6.2 2.4 3.8
7 27291 76 610 410 2.6 6.6 3.6 4.0
8** 10330 70 765 339 2.5 8.1 4.2 4.7
15 131 60 188 34 3.2 9.1 3.6 3.6
30 96 14 13 17 3.4 8.9 1.9 4.4

Red denotes higher than normal and blue denotes lower than normal values.

*plasmapheresis initiated, **plasmapheresis discontinued.



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