Rapid and Effective Elimination of Myoglobin with CytoSorb® Hemoadsorber in Patients with Severe Rhabdomyolysis.

INTRODUCTION: Rhabdomyolysis is characterized by destruction of muscle fibers by various causes and is diagnosed by increased creatine kinase concentrations in the blood. Myoglobin released into the blood may cause acute kidney injury. In this randomized controlled study, we hypothesized that myoglobin elimination would be faster when a hemoadsorber was added to a continuous veno-venous hemodialysis (CVVHD). METHODS: Four patients in the control group received CVVHD with a high cut-off hemofilter using high blood and dialysate flows for 48 h. Four patients in the CytoSorb group received the same treatment, but in addition, the hemoadsorber CytoSorb® was inserted in front of the hemofilter and replaced once after 24 h. Blood samples were drawn simultaneously before (pre) and after (post) the hemofilter or else the hemoadsorber, after 5 and 30 min, as well as after 2, 4, 8, and 24 h. All measurements were repeated the next day after the hemoadsorber had been renewed in the CytoSorb group. Primary outcome was the area under the curve (AUC) of the relative myoglobin concentrations as percent of baseline. To evaluate the efficacy of myoglobin removal, relative reductions in myoglobin concentrations during one passage through each device at each time point were calculated. RESULTS: Patients in the CytoSorb group had a significantly lower AUC during the first 24 h (42 ± 10% vs. 63 ± 6%, p = 0.029) as well as during the observation period of 48 h (26 ± 7% vs. 51 ± 12%, p = 0.029). The relative reductions for myoglobin were considerably higher in the CytoSorb group compared to the control group during the first 8 h. CONCLUSION: Myoglobin concentrations declined considerably faster when CytoSorb was added to a CVVHD. When compared to a high-cut-off hemofilter, efficacy of CytoSorb in myoglobin elimination was much better. Because of saturation after 8-12 h an exchange may be necessary.

Clinical outcomes of rhabdomyolysis & validation of McMahon Score for risk prediction.

BACKGROUND OBJECTIVES: Rhabdomyolysis in tropics has a unique aetiology and clinical profile. The objective of this study was to determine the aetiology and clinical outcomes of rhabdomyolysis and validate the McMahon risk prediction score in affected individuals from south India. METHODS: A retrospective study of affected individuals with rhabdomyolysis admitted to a tertiary care hospital in south India, between January 2015 and June 2020, was undertaken. In-patients who were ≥15 yr in age and had creatinine phosphokinase ≥5000 U/l were included in the study. Cardiac, stroke, chronic muscular diseases and chronic kidney disease on maintenance haemodialysis were excluded. The incidence of acute kidney injury (AKI) in this group was calculated. Other clinical outcomes determined were 28-day mortality, proportion of individuals who required renal replacement therapy (RRT), intensive care unit (ICU) admission, vasopressors, mechanical ventilation (MV), number of days on mechanical ventilator and length of stay in ICU and hospital. Validation of McMahon risk prediction score for the requirement of RRT and mortality was performed. RESULTS: Major aetiologies identified in the 75 study participants included were infections, trauma and seizures. Twenty eight-day mortality was 24 per cent (n=18). AKI incidence was 68 per cent, out of which 43.1 per cent had RRT. AKI in all survivors became dialysis independent. Vasopressors, MV and ICU requirement were 30.7, 32 and 77.3 per cent, respectively. Receiver operator characteristic curve for RRT and mortality risk prediction based on the McMahon Score showed a sensitivity of 71.4 per cent and specificity of 77.8 per cent for a cut-off ≥7.8. INTERPRETATION CONCLUSIONS: Rhabdomyolysis in tropics is associated with significant organ dysfunction and mortality. Although the incidence of AKI and RRT is high, the overall renal outcome is good among survivors. The wide confidence intervals for the area under curve for McMahon Score limit its predictability for RRT and mortality.

Rhabdomyolysis in older adults: outcomes and prognostic factors.

BACKGROUND: Rhabdomyolysis is a common condition in older adults, often associated with falls. However, prognostic factors for rhabdomyolysis have mainly been studied in middle-aged populations. OBJECTIVE: To test the hypothesis that age influences rhabdomyolysis prognostic factors. METHODS: This retrospective single-center observational study included all patients with a creatine kinase (CK) level greater than five times normal, admitted to Rennes University Hospital between 2013 and 2019. The primary endpoint was 30-day in-hospital mortality rate. RESULTS: 343 patients were included (median age: 75 years). The mean peak CK was 21,825 IU/L. Acute renal failure occurred in 57.7% of the cases. For patients aged 70 years and over, the main etiology was prolonged immobilization after a fall. The 30-day in-hospital mortality rate was 10.5% (23 deaths). The Charlson score, number of medications and CK and creatinine levels varied according to age. Multivariate analysis showed age to be a factor that was associated, although not proportionally, with 30-day in-hospital mortality. CONCLUSION: Factors influencing rhabdomyolysis severity were not randomly distributed according to age. The term rhabdomyolysis encompasses various clinical realities and is associated with different mechanisms. More research is needed to better understand the physio-pathological and prognostic factors of rhabdomyolysis, especially in older adults.

Kidney replacement and conservative therapies in rhabdomyolysis: a retrospective analysis.

BACKGROUND: Toxic renal effects of myoglobin following rhabdomyolysis can cause acute kidney injury (AKI) with the necessity of kidney replacement therapy (KRT). Fast elimination of myoglobin seems notable to save kidney function and intensify kidney repair. Clinical data regarding efficacy of KRT in critical care patients with rhabdomyolysis and AKI are limited. This retrospective analysis aimed to identify differences between conservative therapy and different modalities of KRT regarding myoglobin elimination and clinical outcome. METHODS: This systematic, retrospective, single-center study analyzed 328 critical care patients with rhabdomyolysis (myoglobin > 1000 µg/l). Median reduction rate of myoglobin after starting KRT was calculated and compared for different modalities. Multivariate logistic regression models were established to identify potential confounder on hospital mortality. Filter lifetime of the various extracorporeal circuits was analyzed by Kaplan-Meier curves. RESULTS: From 328 included patients 171 required KRT. Health condition at admission of this group was more critical compared to patient with conservative therapy. Myoglobin reduction rate did not differ between the groups (KRT 49% [30.8%; 72.2%] vs. conservative treatment (CT) 61% [38.5%; 73.5%]; p = 0.082). Comparison between various extracorporeal procedures concerning mortality showed no significant differences. Hospital mortality was 55.6% among patients with KRT and 18.5% with CT (p < 0.001). Multivariate logistic regression model identified requirement for KRT (OR: 2.163; CI: 1.061-4.407); p = 0.034) and the SOFA Score (OR: 1.111; CI: 1.004-1.228; p = 0.041) as independent predictive factors for hospital mortality. When comparing specific KRT using multivariate regression, no benefit was demonstrated for any treatment modality. Life span of the extracorporeal circuit was shorter with CVVH compared to that of others (log-Rank p = 0.017). CONCLUSIONS: This study emphasizes that AKI requiring KRT following rhabdomyolysis is accompanied by high mortality rate. Differences in myoglobin reduction rate between various KRTs could not be confirmed, but CVVH was associated with reduced filter lifetime compared to other KRTs, which enable myoglobin elimination, too.

Super-refractory status epilepticus, rhabdomyolysis, central hyperthermia and cardiomyopathy attributable to spinal anesthesia: a case report and review of literature.

BACKGROUND: There are only six past reports of super-refractory status epilepticus induced by spinal anesthesia. None of those patients have died. Only < 15 mg of bupivacaine was administered to all six of them and to our case. Pathophysiology ensuing such cases remains unclear. CASE PRESENTATION: A 27 year old gravida 2, para 1, mother at 37 weeks of gestation came to the operating theater for an elective cesarean section. She had no significant medical history other than controlled hypothyroidism and one episode of food allergy. Her current pregnancy was uneventful. Her American Society of Anesthesiologists (ASA) grade was 2. She underwent spinal anesthesia and adequate anesthesia was achieved. After 5-7 min she developed a progressive myoclonus. After delivery of a healthy baby, she developed generalized tonic clonic seizures that continued despite the induction of general anesthesia. She had rhabdomyolysis, one brief cardiac arrest and resuscitation, followed by stress cardiomyopathy and central hyperthermia. She died on day four. There were no significant macroscopic or histopathological changes in her brain that explain her super refractory status epilepticus. Heavy bupivacaine samples of the same batch used for this patient were analyzed by two specialized laboratories. National Medicines Quality Assurance Laboratory of Sri Lanka reported that samples failed to confirm United States Pharmacopeia (USP) dextrose specifications and passed other tests. Subsequently, Therapeutic Goods Administration of Australia reported that the drug passed all standard USP quality tests applied to it. Nonetheless, they have detected an unidentified impurity in the medicine. CONCLUSIONS: After reviewing relevant literature, we believe that direct neurotoxicity by bupivacaine is the most probable cause of super-refractory status epilepticus. Super-refractory status epilepticus would have led to her other complications and death. We discuss probable patient factors that would have made her susceptible to neurotoxicity. The impurity in the drug detected by one laboratory also would have contributed to her status epilepticus. We propose several possible mechanisms that would have led to status epilepticus and her death. We discuss the factors that shall guide investigators on future such cases. We suggest ways to minimize similar future incidents. This is an idiosyncratic reaction as well.

Severe rhabdomyolysis secondary to COVID-19 mRNA vaccine in a teenager.

BACKGROUND: Rhabdomyolysis, the breakdown of skeletal muscles following an insult or injury, has been established as a possible complication of SARS-CoV-2 infection. Despite being highly effective in preventing COVID-19-related morbidity and mortality, several cases of COVID-19 mRNA vaccination-induced rhabdomyolysis have been identified. We provide the second description of a pediatric case of severe rhabdomyolysis presenting after COVID-19 mRNA vaccination. CASE: DIAGNOSIS/TREATMENT: A 16-year-old male reported to the emergency department with a 2-day history of bilateral upper extremity myalgias and dark urine 2 days after his first dose of COVID-19 vaccine (Pfizer-BioNtech). The initial blood work showed an elevated creatinine kinase (CK) of 141,300 units/L and a normal creatinine of 69 umol/L. The urinalysis was suggestive of myoglobinuria, with the microscopy revealing blood but no red blood cells. Rhabdomyolysis was diagnosed, and the patient was admitted for intravenous hydration, alkalinization of urine, and monitoring of kidney function. CK levels declined with supportive care, while his kidney function remained normal, and no electrolyte abnormalities developed. The patient was discharged 5 days after admission as his symptoms resolved. CONCLUSION: While vaccination is the safest and most effective way to prevent morbidity from COVID-19, clinicians should be aware that rhabdomyolysis could be a rare but treatable adverse event of COVID-19 mRNA vaccination. With early recognition and diagnosis and supportive management, rhabdomyolysis has an excellent prognosis.

Clearance of NT-proBNP and Procalcitonin during Continuous Venovenous Hemodialysis with the Medium Cutoff Filter in Patients with Rhabdomyolysis-Associated Early Acute Kidney Injury.

INTRODUCTION: In polytrauma patients with AKI continuous venovenous hemodialysis (CVVHD) with medium cutoff membrane filters is commonly adopted to increase the removal of both myoglobin and inflammatory mediators, but its impact on increasing molecular weight markers of inflammation and cardiac damage is debated. METHODS: Twelve critically ill patients with rhabdomyolysis (4 burns and 8 polytrauma patients) and early AKI requiring CVVHD with EMIc2 filter were tested for 72 h on serum and effluent levels for NT-proBNP, procalcitonin (PCT), myoglobin, C-reactive protein (CRP), alpha1-glycoprotein, albumin, and total protein. RESULTS: The sieving coefficients (SCs) for proBNP and myoglobin were as higher as 0.5 at the start, decreased to 0.3 at the 2nd h, and then slowly declined to the final value of 0.25 and 0.20 at the 72nd h, respectively. PCT showed a negligible SC at the 1st h, a peak of 0.4 at the 12th h, and a final value of 0.3. SCs for albumin, alpha1-glycoprotein, and total protein were negligible. A similar trend was observed for the clearances (17-25 mL/min for proBNP and myoglobin; 12 mL/for PCT; <2 mL/min for albumin, alpha1-glycoprotein, and total protein). No correlation was found between systemic determinations and filter clearances of proBNP, PCT, and myoglobin. Net fluid loss/hour during CVVHD positively correlated with systemic myoglobin for all patients and NT-proBNP in the burn patients. CONCLUSION: CVVHD with EMiC2 filter showed low clearances for NT-proBNP and procalcitonin. CVVHD did not significantly affect the serum levels of these biomarkers, which could be adopted in the clinical management of early CVVHD patients.

Crush injury and syndrome: A review for emergency clinicians.

INTRODUCTION: Primary disasters may result in mass casualty events with serious injuries, including crush injury and crush syndrome. OBJECTIVE: This narrative review provides a focused overview of crush injury and crush syndrome for emergency clinicians. DISCUSSION: Millions of people worldwide annually face natural or human-made disasters, which may lead to mass casualty events and severe medical issues including crush injury and syndrome. Crush injury is due to direct physical trauma and compression of the human body, most commonly involving the lower extremities. It may result in asphyxia, severe orthopedic injury, compartment syndrome, hypotension, and organ injury (including acute kidney injury). Crush syndrome is the systemic manifestation of severe, traumatic muscle injury. Emergency clinicians are at the forefront of the evaluation and treatment of these patients. Care at the incident scene is essential and focuses on treating life-threatening injuries, extrication, triage, fluid resuscitation, and transport. Care at the healthcare facility includes initial stabilization and trauma evaluation as well as treatment of any complication (e.g., compartment syndrome, hyperkalemia, rhabdomyolysis, acute kidney injury). CONCLUSIONS: Crush injury and crush syndrome are common in natural and human-made disasters. Emergency clinicians must understand the pathophysiology, evaluation, and management of these conditions to optimize patient care.

Clinical and Epidemiological Characteristics of Rhabdomyolysis: A Retrospective Study.

Background: Rhabdomyolysis (RM) refers to a clinical syndrome in which muscle cells are damaged by various causes and the clinical manifestations are mainly muscle pain, weakness, and dark urine. Acute kidney injury (AKI) is a serious complication of RM with complex mechanisms and high mortality. Therefore, understanding the pathogenesis and clinical manifestations, early diagnosis and treatment of RM are crucial to improve its prognosis. Method: Analysis of medical records of RM patients admitted to Tianjin Medical University General Hospital from October 2019 to October 2022. Statistical software SPSS 25.0 was used to analyze the data. The risk factors of RM-complicated AKI were analyzed by logistic regression. The receiver operating characteristic (ROC) curve was plotted, the area under the curve (AUC) was calculated, and the optimal cutoff value was determined by the Youden index. P < 0.05 indicates a statistically significant difference between the groups. Result: Among the 71 patients, the median age of the patients was 53.0 (30.0, 71.0) years and was 2.5 times higher in men than in women. Infection was the most common etiology. History of alcohol consumption, CK, and creatinine were independent influencing factors for AKI due to RM. Logistic regression analysis showed that CK combined with creatinine had a better predictive value than the single index. Conclusion: Our study revealed the clinical and laboratory characteristics of RM in the population attending the Tianjin Medical University General Hospital in the last three years, which is a reference for future multicenter, prospective studies.

Paediatric rhabdomyolysis: A UK centre's 10-year retrospective experience.

AIMS: To describe the aetiologies of paediatric rhabdomyolysis and explore the medium-term renal consequences. METHODS: Retrospective, single-centre review of children with rhabdomyolysis. RESULTS: Two hundred and thirty-two children met inclusion criteria for the analysis. Mean age at presentation was 8.4 (SD ± 5.5) years. The commonest aetiology was infection (28%), with viral myositis making up the clear majority (75%). Trauma was identified as a cause in 18% of children, seizures in 10% and immune-mediated mechanisms in 8%. Acute kidney injury (AKI) was present in 32% of the cases overall. Children with AKI tended to be younger, with higher peak creatine kinase (CK) and active urinary sediment on urinalysis at presentation. AKI and the need for renal replacement therapy (RRT) were associated with a prolonged hospital stay (15 (interquartile range, IQR 6.5-33) vs. 2 (IQR 0-7) days). A total of 18 children and young people required RRT, with a mean duration of 7.1 ± 4.3 days. Those who received RRT were more likely to have abnormalities on urinalysis at presentation (46% vs. 5%). Over the period of the study, 9% of children died and 2% met criteria for a diagnosis of chronic kidney disease. CONCLUSIONS: This large paediatric rhabdomyolysis case series provides new and unique insights into the condition. Our results highlight the common aetiologies and provide evidence of good renal recovery overall, even in the most severely affected cases. Abnormalities of urinalysis appear to be important in predicting the development of AKI and the need for RRT.

Exertional Rhabdomyolysis in Athletes: Systematic Review and Current Perspectives.

OBJECTIVE: Exertional rhabdomyolysis results from a breakdown of skeletal muscle cells after intense exercise in otherwise healthy patients, causing increased levels of creatine kinase (CK) or myoglobin, as well as urine dipstick positive for blood, and may result in kidney insufficiency. The aim of this study was to outline the current perspectives of exertional rhabdomyolysis in athletes and subsequent treatment based on the current literature. DATA SOURCES: We searched the MEDLINE/PubMed and Google databases for ([exercise] OR [exertional]) AND rhabdomyolysis following the PRISMA guidelines. All abstracts were reviewed by 2 independent examiners. Inclusion criteria consisted of original articles presenting studies on exertional rhabdomyolysis or exercise-induced rhabdomyolysis with 7 or more cases. All case reports, case series, or editorials were excluded. MAIN RESULTS: A total of 1541-abstracts were screened, leaving 25 studies for final inclusion and analysing 772patients. Especially, young male patients were affected at a mean age of 28.7 years (range 15.8-46.6 years). Most of the athletes performed running, including marathons in 54.3% of cases (n = 419/772), followed by weightlifting in 14.8% (n = 114/772). At the time of presentation, the mean creatine kinase was 31 481 IU/L (range 164-106,488 IU/L). Seventeen studies reported the highest level of CK, which was 38 552 IU/L (range 450-88,496 IU/L). For treatment, hydration was the most common method of choice reported by 8 studies. CONCLUSIONS: Exertional rhabdomyolysis seems to be underestimated, and it is essential to screen patients who present with muscle soreness/cramps and/or dark urine after heavy endurance events to avoid any further complications. LEVEL OF EVIDENCE: II; systematic review.

Wilderness Rescue of a Hiker with Multiple Trapped Limbs by a Combined Wilderness and Urban Rescue Team Using High-Pressure Airbags.

We report on the case of a 28-y-old man with both legs and left arm trapped for nearly 6 h after falling and subsequently being trapped by a boulder during a hike in the wilderness. Extrication required equipment designed for urban environments and was operated by an unconventional team of rescue professionals. The patient experienced multiple right lower-extremity orthopedic injuries, acute kidney injury secondary to rhabdomyolysis, and bilateral segmental pulmonary emboli. In this article, we detail the extrication and review the treatment guidelines for crush injuries that focus on aggressive fluid resuscitation prior to and during extrication and medication administration only if hyperkalemia presents. Wilderness rescuers should plan for the use of unconventional rescue equipment in austere prolonged rescue scenarios.

Skeletal muscles and Covid-19: a systematic review of rhabdomyolysis and myositis in SARS-CoV-2 infection.

OBJECTIVES: Myalgia is a widely publicised feature of Covid-19, but severe muscle injury can occur. This systematic review summarises relevant evidence for skeletal muscle involvement in Covid-19. METHODS: A systematic search of OVID and Medline databases was conducted on 16/3/2021 and updated on 28/10/2021 to identify case reports or observational studies relating to skeletal muscle manifestations of Covid-19 (PROSPERO: CRD42020198637). Data from rhabdomyolysis case reports were combined and summary descriptive statistics calculated. Data relating to other manifestations were analysed for narrative review. RESULTS: 1920 articles were identified. From these, 61 case reports/series met inclusion criteria, covering 86 rhabdomyolysis cases. Median age of rhabdomyolysis patients was 50 years, (range 6-89). 49% had either hypertension, diabetes mellitus or obesity. 77% were male. Symptoms included myalgia (74%), fever (69%), cough (59%), dyspnoea (68%). Median peak CK was 15,783U/L. 28% required intravenous haemofiltration and 36% underwent mechanical ventilation. 62% recovered to discharge and 30% died. Dyspnoea, elevated CRP and need for intravenous haemofiltration increased risk of fatal outcome. Additional articles relating to skeletal muscular pathologies include 6 possible concomitant diagnoses or relapses of idiopathic inflammatory myopathies and 10 reports of viral-induced muscle injuries without rhabdomyolysis. Localised myositis and rhabdomyolysis with SARS-CoV-2 vaccination have been reported. CONCLUSIONS: Rhabdomyolysis is an infrequent but important complication of Covid-19. Increased mortality was associated with a high CRP, renal replacement therapy and dyspnoea. The idiopathic inflammatory myopathies (IIM) may have viral environmental triggers. However, to date the limited number of case reports do not confirm an association with Covid-19.

Extracorporeal Removal of Myoglobin in Patients with Rhabdomyolysis and Acute Kidney Injury: Comparison of High and Medium Cut-Off Membrane and an Adsorber Cartridge.

INTRODUCTION: The role of extracorporeal myoglobin removal in the treatment of rhabdomyolysis-associated severe acute kidney injury (AKI) is not yet fully established. High cut-off (HCO) and medium cut-off (MCO) dialysis membrane and cytokine adsorber (CytoSorb®) have been used to this purpose in clinical practice. The data on comparative effectiveness of those methods are scarce. METHODS: In this single-center retrospective study, we included patients with AKI and concomitant rhabdomyolysis (myoglobin >20,000 µg/L), who underwent at least one extracorporeal myoglobin removal procedure. The main outcome parameter was myoglobin reduction ratio, whereas albumin was assessed as a safety parameter. RESULTS: We analyzed data for 15 patients, who underwent 28 procedures (13 HCO, 9 MCO, and 6 adsorber). Pre-treatment serum myoglobin levels were similar between the groups and myoglobin reduction was significant in HCO (p = 0.03) and MCO groups (p < 0.01) and borderline significant in adsorber group (p = 0.06). Reduction ratios were comparable between the groups (median 0.64 (inter-quartile range IQR 0.13-0.72), 0.54 (IQR 0.51-0.61) and 0.50 (IQR 0.37-0.62), respectively, p = 0.83). Both pre- and post-procedure serum albumin levels were significantly lower in the MCO group. However, with routine albumin substitution in the HCO group only, serum albumin remained stable during the procedures in all subgroups. CONCLUSIONS: Novel MCO membrane might represent the optimal mode of treatment of severe rhabdomyolysis-associated AKI, as it allows for efficient removal of myoglobin, avoids albumin supplementation and is associated with lower costs. For patients requiring cytokine removal, the adsorption capsule can simultaneously reduce cytokine and myoglobin levels.

Chlorpheniramine poisoning as a potential cause of rhabdomyolysis.

Chlorpheniramine is an H1 receptor antagonist of the alkylamine class. It is a widely used anti-allergy drug due to its strong antihistamine effect and mild adverse effects. In the case of chlorpheniramine overdose or poisoning, the primary manifestation is central nervous system symptoms. To date, no case of rhabdomyolysis induced by acute poisoning with chlorpheniramine has ever been reported. This study reports a case of acute chlorpheniramine poisoning at an oral dose of 4000 mg, which is the highest reported poisoning dose to date. The diagnosis of rhabdomyolysis (creatine kinase, 195,489 U/L) and acute kidney injury (serum creatinine, 150.1 umol/L) was confirmed based on laboratory results. After haemoperfusion and continuous renal replacement therapy, the patient's renal function fully recovered. This paper aims to analyse the clinical data of this patient and summarize its clinical characteristics. At the same time, the mechanism of chlorpheniramine-induced rhabdomyolysis is also explored in the context of the literature review.

A Rare Pediatric Case of Severe Rhabdomyolysis Owing to Dual Infection.

AIM: We aimed to report a severe and rare pediatric rhabdomyolysis case associated with a dual viral infection. CASE: A 13 year-old, healthy girl presented with the complaints of fever, abdominal pain, weakness and dark-colored urine. She was diagnosed with rhabdomyolysis based on clinical signs and laboratory findings. The diagnosis was confirmed by serological tests and real-time polymerase chain reaction for Epstein-Barr virus (EBV) and cytomegalovirus (CMV), respectively. Other potential genetic, metabolic and infectious causes were evaluated meticulously but no evidence was found. This case is also important as it is the first reported case to our knowledge on rhabdomyolysis associated with EBV and CMV co-infection in children. CONCLUSION: The presented case experienced tetraplegia due to the severe muscular damage and muscle power returned to normal range after 3 months. This suggests that EBV and CMV may have exert synergistic effects leading to more severe inflammation and degeneration.

Serum creatine kinase levels are not associated with an increased need for continuous renal replacement therapy in patients with acute kidney injury following rhabdomyolysis.

Severe rhabdomyolysis can lead to acute kidney injury (AKI). Previous studies have reported a benefit from continuous renal replacement therapy (CRRT) for rhabdomyolysis-associated AKI. Here, we investigated the potential for serum creatine kinase (CK) levels to be used as a marker for CRRT termination in patients with AKI following rhabdomyolysis. We compared different CK levels in patients after CRRT termination and observed their clinical outcomes. We retrospectively collected 86 cases with confirmed rhabdomyolysis-associated AKI, who were receiving CRRT in Tongji Hospital. Patients' renal functions were assessed within 24 h of intermission, patients with urine output ≥ 1,000 mL and serum creatinine ≤ 265 umol/L were considered for CRRT termination. After termination, 33 patients with a CK > 5,000 U/L were included in an experimental group, and 53 patients with a CK < 5,000 U/L were included in a control group. Clinical outcomes were compared between the two groups. Higher CK levels, as well as worse renal functions, predicted the necessity of CRRT. After CRRT termination, the in-hospital mortality (p = 0.389) and Multiple Organ Dysfunction Syndrome (MODS) incidence (p = 0.064) were similar between the two groups, while the experimental group showed a significantly shorter in-hospital length of stay (p = 0.026) and Intensive Care Unit (ICU) length of stay (p = 0.038). CRRT termination may be independent of CK levels for patients with rhabdomyolysis-associated AKI, and this is contingent on their renal functions having recovered to an appropriate level.

Russula subnigricans Poisoning Causes Severe Rhabdomyolysis That Could be Misdiagnosed as Non-ST Segment Elevation Myocardial Infarction.

Mushroom poisoning and subsequently the number of patients visiting emergency rooms are increasing, as well as the proportion of fatal mushroom poisonings. Myocytic mushroom poisoning is one of the new clinical classifications. This report documents the course of a family with Russula subnigricans poisoning complicated by severe rhabdomyolysis, including a case that was misdiagnosed as myocardial infarction. A 64-y-old man visited our hospital with symptoms including substernal chest discomfort, nausea, vomiting, and myalgia, lasting for 12 h. His laboratory tests showed elevated serum high-sensitive troponin I. He was diagnosed with non-ST segment elevation myocardial infarction. After that, 2 family members who ate mushrooms together were transferred from a local emergency room with the diagnosis of rhabdomyolysis. Consequently, rhabdomyolysis due to mushroom poisoning was diagnosed. They were hospitalized in the intensive care unit. After admission, conservative management, including primary fluid resuscitation, was performed, and the patients were discharged without complications. R subnigricans poisoning was revealed after investigation and should be considered in mushroom poisoning with rhabdomyolysis. Early recognition and intensive supportive care are important for mushroom poisoning patients.

Very Long-Chain Acyl-CoA Dehydrogenase Deficiency Presenting as Rhabdomyolysis.

Presentation A 20 year old female attended the Emergency Department by ambulance following a collapse at a concert. On arrival she was complaining of generalised muscular pain. She had not eaten for over 12 hours and had been dancing for approximately 6 hours. The patient was known to have Very-long-chain acyl-CoA dehydrogenase deficiency (VLCAD). She had a normal exam, and normal vital signs. Diagnosis A diagnosis of rhabdomyolysis was made after her creatinine kinase (CK) was found to be >100000 units/litre (Normal range < 170U/L). Her urine was dark brown with urinalysis positive for blood. Treatment The patient was admitted to the high dependency unit, where she was treated with intravenous fluids. Her urine output and renal function were closely monitored. She made a full recovery and was discharged home four days later. Conclusion (VLCAD) is an inherited, autosomal recessive, metabolic disorder caused by mutations in the ACADVL gene. Management includes treatment of manifestation, primary prevention of manifestation, and prevention of secondary complications.

[Rhabdomyolysis - the chamaeleon of the intensive care unit]. / Rhabdomyolyse ­ das Chamäleon auf der Intensivstation.

Myotonia congenita Thomsen is a rare genetic disease caused by mutations in the skeletal muscle chloride channel gene (CLCN1). Although this channelopathy may cause disabling muscle symptoms, patient's daily routine can be almost inconspicuous. Nevertheless, during illness or acute diseases this neuromuscular disease may worsen and get clinically apparent up to severe rhabdomyolysis. Within this case report we describe and discuss the treatment of a patient with Myotonia congenita Thomsen treated at our hospital's intensive care unit. Rhabdomyolysis with acute renal failure and necessity of dialysis during the ICU stay was attributed to the initial reason for emergency hospitalization - an aortic dissection. Nevertheless, in this case the patient's myotonia caused rhabdomyolysis and initially led us on a wrong path. Diagnosis of the real cause of rhabdomyolysis is often difficult, although an early and adequate therapy may prevent complications. This case report demonstrates the importance of a thorough anamnesis with all aspects of the patient's history.