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Open Access Case Report

Fatal hemolytic uremic syndrome associated with day care surgery and anaesthesia: a case report

Anna Myrnäs1 and Markus Castegren23*

Author Affiliations

1 Department of Anaesthesia, Intensive Care Medicine, Sörmland County Hospital/Mälarsjukhuset, Eskilstuna, Sweden

2 Centre for Clinical Research Sörmland, Uppsala University, Kungsgatan 41, Eskilstuna, Uppsala, SE-63188, Sweden

3 Department of Medical Sciences, Infectious Diseases, Uppsala University, Uppsala, Sweden

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BMC Research Notes 2013, 6:242  doi:10.1186/1756-0500-6-242


The electronic version of this article is the complete one and can be found online at: http://www.biomedcentral.com/1756-0500/6/242


Received:14 January 2013
Accepted:24 June 2013
Published:26 June 2013

© 2013 Myrnäs and Castegren; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background

Thrombotic angiopathies, i.e. haemolytic uremic syndrome and thrombotic thrombocytopenic purpura, are thought to occur in patients with a combination of risk factors (e.g., an infection with shiga-toxin-producing Escherichia coli (E. coli) or low activity of the metalloproteinase Adamts-13) and a pathophysiological trigger (e.g., anti-endothelial antibodies, cytokines or activation of chemokine receptor 4). To our knowledge, this is the first report describing an association between haemolytic uremic syndrome and routine surgery and anaesthesia.

Case presentation

We present a case in which a 67-year-old Caucasian female developed fatal haemolytic uremic syndrome in the immediate postoperative period of uncomplicated day care surgery. The patient had suffered gastrointestinal symptoms followed by confusion approximately two weeks before surgery, but had been without any symptoms in the week before surgery. Haemolytic uremic syndrome with cerebral symptoms ranging from initial anxiety to subsequent seizures and coma developed within a few hours after the end of surgery. In addition, acute kidney failure and severe thrombocytopenia occurred about the same time. During intensive care, the patient was found to be positive for enterohaemorrhagic E. coli (EHEC) in faeces.

Conclusion

Anaesthesiologists should be notified that haemolytic uremic syndrome is an uncommon differential diagnosis in patients with postoperative seizures and coma. Patients with a recent enterohemmoragic E.Coli infection should be followed postoperatively for signs of haemolytic uremic syndrome.

Keywords:
Thrombotic microangiopathy; Thrombotic thrombocytopenic purpura; Plasmapheresis; Day care surgery; General anaesthesia

Background

Haemolytic uremic syndrome (HUS) is characterised by three prominent attributes: haemolytic anaemia, acute kidney failure and thrombocytopenia [1]. The most common cause of classical HUS (STEC-HUS) is infection with shiga-toxin-producing Escherichia coli (E. coli) 0157:H7. Typically, the incubation period is 3–5 days and approximately 5-15% of infected patients develop HUS. Children are more often affected than adults. Neurological involvement is uncommon [2]. During the German major outbreak of HUS in 2011, patients were infected with E. coli O104:H4. During the outbreak, over 20% of the infected patients developed HUS and 88% of the cases with HUS occurred in adults. Particularly noteworthy was that 68% of the patients were women [3]. Furthermore, neurological involvement was common, whereas the incidence of bloody diarrhoea was infrequent [4]. Neurological symptoms occurred at the same time as there was an increase of lactate dehydrogenase and creatinine and the nadir of the platelet count occurred before the onset of neurological symptoms [5]. The patients needed mechanical ventilation for an average of five days and started to be seizure free after an average of three days [5].

In patients in whom no infection with shiga-toxin-producing E. coli is found, i.e. atypical HUS (aHUS), mutations in genes encoding proteins of the alternative pathway of the complement system have been identified [6]. A third condition very similar in presentation and pathophysiology, thrombotic thrombocytopenic purpura (TTP), is associated with either a low activity of the metalloproteinase Adamts-13 or antibodies to the protein [7]. All three conditions are sometimes referred to as thrombotic microangiopathies (TMAs) [7].

In contrast to aHUS, which has a known risk of recurrence following renal transplantation [8], STEC-HUS is regarded as a unique event not associated with recurrence of the symptoms [9]. In the reports after the 2011 outbreak of STEC-HUS no comments about patients with recurrent presentations were noted [5,10].

Drug-associated HUS is a commonly acknowledged condition in which the proposed mechanisms are direct endothelial effects or immune-mediated effects associated with deficient Adamts-13 activity [11]. The most commonly implicated drugs are quinine, mitomycin-C, tacrolimus and cyclosporine, as well as platelet-acting drugs, such as clopidogrel and ticlopidine [12]. Other than the most common drugs associated with HUS, reports of a suspected association can be found between the development of HUS and treatment with antibiotics, i.e. penicillin and piperacillin, non-steroidal anti-inflammatory drugs, H2-receptor antagonists and simvastatin [11].

Adamts-13 protein deficiency is not enough for the development of TTP; rather, a pathophysiological trigger is required for the precipitation of the condition [13]. Anti-endothelial antibodies or cytokines have been proposed as such triggers [13]. An interplay between a predisposing condition and a pathophysiological trigger is most likely also required in STEC-HUS and aHUS, where activation of chemokine receptor 4 (CXCR4/stromal cell-derived factor-1(SDF-1) pathway) has been proposed as a trigger mechanism [14]. Ubiquitin, a natural CXCR4 agonist [15], is released systemically following trauma and inflammation [16].

Evidenced-based treatments for TMAs are lacking; however, plasma exchange therapy has been used with varying success [17]. Complement inhibitor treatment with the monoclonal antibody against the compliment protein C5, eculizumab, has been used successfully in recent trials in aHUS [6].

To our knowledge, there are no publications or case reports describing an association between STEC-HUS with uncomplicated anaesthesia and routine orthopaedic surgery.

Case presentation

A 67-year-old Caucasian female with glipizide- and metformin-treated diabetes mellitus and enalapril-treated arterial hypertension presented for open reposition and Zuggurtung fixation of a fracture of the olecranon. The elbow was fractured in a bicycle accident and had been conservatively treated for 14 days prior to surgery. The patient had suffered from diarrhoea and signs of confusion in the period between the trauma and surgery, but had been free of gastrointestinal or neurological symptoms during the week before surgery. The patient had not sought professional medical advice for these symptoms. When the patient presented for surgery, she was lucid, without any gastrointestinal symptoms and otherwise physically well. The preoperative laboratory work-up tests were without pathological signs (Table 1). At the operating ward, 1 g paracetamol, 100 mg diclofenac, 10 mg oxycodone and 25 mg meclizine were administered orally as premedication. The anaesthesia was induced with propofol and fentanyl. The airway was secured by orotracheal intubation after which the anaesthesia was maintained with sevoflurane. The time of surgery was 31 min and the total anaesthesia duration was 70 min. After uncomplicated surgery and anaesthesia, the patient was transferred to the postoperative unit from where the patient went home after 3 h accompanied by her next of kin. During the first postoperative evening and night, the patient’s next of kin observed that the patient had problems with articulating words followed by increasing anxiety and confusion. At the next morning, the patient only spoke unrecognizable words, and by the afternoon, she could not walk. Approximately 24 h after leaving the hospital, the patient presented at the emergency ward. Respiration and circulation were normal and the patient was afebrile. A computed tomography (CT) scan of the brain was performed as well as an analysis of the cerebrospinal fluid, with both indicating no pathological signs. A neurological consult ordered an electroencephalogram (EEG) and a magnetic resonance imaging (MRI) of the brain to be performed as soon as possible at a secondary hospital to which the patient was referred. At arrival to the secondary hospital on the second postoperative day, the patient did not respond verbally, could not open her eyes spontaneously and the best motor response was withdrawal of the limbs on pain stimulation (Glasgow Coma Scale, GCS 9). It was noted that plasma creatinine was elevated to 313 μmol × L-1. Except for an elevated C-reactive protein (CRP) at 76 mg × L-1, all blood analyses were in the normal range, including haemoglobin, leucocyte and platelet count. On the night between the second and third postoperative day, the patient suffered a generalised tonic-clonic seizure. The patient was transferred to the intensive care unit, where she, was orotracheally intubated and mechanically ventilated. A second CT scan of the brain showed no bleeding or ischaemic signs. The patient was respiratory and circulatory stable and did not require an increased oxygen fraction or vasoactive drugs. The patient was anuric, was not icteric and did not have any pathological signs on the skin. Blood cultures were drawn and an antibiotic was given based on a body temperature of 38.9°C and tachycardia. The patient was started at 4 g piperacillin-tazobactam 3 times per day intravenously (i.v.). The cultures did not show any bacterial growth. Because the patient had elevated serum potassium of 5.8 mmol × L-1 and hyponatraemia of 131 mmol × L-1, blood was analysed for serum cortisol on the suspicion of Addison’s disease. Accordingly, the patient was given 100 mg hydrocortisone i.v. Cortisol in serum was found to be 796 nmol × L-1 and thus the suspicion of Addison’s disease was refuted. The patient was now anaemic with a haemoglobin of 86 g × L-1 and thrombocytopenic with a platelet count of 31 × 109 × L-1. Lactate dehydrogenase was elevated to 21.5μkat × L-1 and haptoglobin low at 0.07 g × L-1, which indicate haemolysis. The blood film showed schistocytosis., On the third postoperative day, plasmapheresis was started on the indication of HUS/TTP. One plasma volume was replaced daily for four days and continuous veno-venous haemodiafiltration was performed between plasmapheresis treatments. The patient’s haemoglobin and platelet count improved during treatment (Table 1). The same positive development was seen for creatinine. Neurological status improved slowly and on the seventh postoperative day, GCS was 6 with withdrawal of the limbs on pain stimulation. Polymerase chain reaction (PCR) revealed enterohaemorrhagic E. coli (EHEC) in faeces. The serotype was non-O157, produced verotoxin type 2 and was eae-gene negative. Blood analysis of Adamts-13 protein activity showed normal levels and antibodies against the protein were not observed. Signs of multiple small ischaemic fronto-temporal cortical lesions were noted on an MRI scan, as well as lesions in the circulus Willisi and the basilar artery with narrowing and more distal dilatations of the vessels. Analyses of anti-neutrophil antibodies and anti-neutrophil cytoplasmic antibodies were negative. The neurological consult assessed the clinical picture together with the MRI findings as thrombotic microangiopathy. The patient continued to show slow improvement in neurological status with spontaneous eye opening and the ability to move all limbs, although with substantial weakness. The patient could make eye contact on instructions on the 20th postoperative day but was still anuric and in need of intermittent haemodialysis and mechanical ventilatory support. On the 21st postoperative day, the patient suffered a generalised tonic-clonic seizure followed by deep coma (GCS 3). EEG showed generalised deeply suppressed activity. A joint decision was made with the next of kin to withdraw all treatment. The patient died 6 h later.

Table 1. Development of the glasgow coma scale and laboratory parameters

Discussion

The present case of a patient with gastrointestinal symptoms before the onset of HUS and positive PCR of EHEC in faeces is a classic case of HUS. The features of the E. coli being non-serotype O157, verotoxin 2-producing and eae-gene negative, together with the neurological symptoms in an adult female, are uncharacteristic of classical STEC-HUS but similar to the German outbreak of E. coli O104:H4 in 2011 [4]. In this case, the patient had suffered gastrointestinal symptoms followed with transient confusion and recovered from all symptoms over a week prior to surgery. However, in the immediate postoperative period, the cerebral symptoms recurred, only now with rapid deterioration from confusion and agitation to fulminant epileptic seizures and deep coma. The progression from a patient without symptoms before surgery and anaesthesia to fulminant HUS in conjunction with deep unconsciousness took less than 48 h. This close temporal relationship suggests a direct causal effect between the therapy given during surgery and anaesthesia and the recurrence of fulminant HUS. It might be hypothesised that the inflammatory response induced by surgery and anaesthesia activated cell surface receptors (e.g., CXCR4) in a patient at risk of developing HUS because of an EHEC infection, which would hasten the progression of the disease [13-16]. The noteworthy association in time between anaesthesia for uncomplicated surgery and the unique recurrence of STEC-HUS has, to our knowledge, not been described previously.

Conclusion

Anaesthetists and surgeons should be notified of HUS/TTP as an uncommon differential diagnosis of seizures and coma in the postoperative period. Patients with a recent EHEC infection should be followed postoperatively for signs of HUS.

Consent

A written informed consent was obtained from the patient’s next of kin for publication of this case report.

Abbreviations

ANA: Anti-neutrophil antibody; ANCA: Anti-neutrophil cytoplasmic antibody; CT: Computer tomography; CXCR4: Chemokine receptor 4; EEG: Electroencephalogram; E.Coli: Escherichia coli; EHEC: Enterohaemorrhagic e. coli; GCS: Glasgow coma scale; HUS: Haemolytic uremic syndrome; aHUS: Atypical HUS; STEC-HUS: Shiga-toxin-producing e. coli associated HUS; MRI: Magnetic resonance imaging; PCR: Polymerase chain reaction; TMA: Thrombotic microangiopathy; TTP: Thrombotic thrombocytopenic purpura.

Competing interests

The authors declare that they have no competing interests.

Authors’ contributions

AM was involved in the case, reviewed the case and wrote the manuscript. MC reviewed the case and wrote the manuscript. Both authors approved the final manuscript.

References

  1. Keir LS, Marks SD, Kim JJ: Shiga toxin-associated hemolytic uremic syndrome: current molecular mechanisms and future therapies.

    Drug Des Devel Ther 2012, 6:195-208. PubMed Abstract | Publisher Full Text | PubMed Central Full Text OpenURL

  2. Tarr PI, Gordon CA, Chandler WL: Shiga-toxin-producing Escherichia coli and haemolytic uraemic syndrome.

    Lancet 2005, 365:1073-1086. PubMed Abstract | Publisher Full Text OpenURL

  3. Frank C, Werber D, Cramer JP, Askar M, Faber M, An der Heiden M, Bernard H, Fruth A, Prager R, Spode A, Wadl M, Zoufaly A, Jordan S, Kemper MJ, Follin P, Müller L, King LA, Rosner B, Buchholz U, Stark K, Krause G: Epidemic profile of Shiga-toxin-producing Escherichia coli O104:H4 outbreak in Germany.

    N Engl J Med 2011, 365:1771-1780. PubMed Abstract | Publisher Full Text OpenURL

  4. Petruzziello-Pellegrini TN, Marsden PA: Shiga toxin-associated hemolytic uremic syndrome: advances in pathogenesis and therapeutics.

    Curr Opin Nephrol Hypertens 2012, 21:433-440. PubMed Abstract | Publisher Full Text OpenURL

  5. Magnus T, Röther J, Simova O, Meier-Cillien M, Repenthin J, Möller F, Gbadamosi J, Panzer U, Wengenroth M, Hagel C, Kluge S, Stahl RK, Wegscheider K, Urban P, Eckert B, Glatzel M, Fiehler J, Gerloff C: The neurological syndrome in adults during the 2011 northern German E. coli serotype O104:H4 outbreak.

    Brain 2012, 135:1850-1859. PubMed Abstract | Publisher Full Text OpenURL

  6. Westra D, Wetzels JFM, Volokhina EB, Van den Heuvel LP, Van de Kar NCAJ: A new era in the diagnosis and treatment of atypical haemolytic uraemic syndrome.

    Neth J Med 2012, 70:121-129. PubMed Abstract | Publisher Full Text OpenURL

  7. Chapman K, Seldon M, Richards R: Thrombotic microangiopathies, thrombotic thrombocytopenic purpura, and ADAMTS-13.

    Semin Thromb Hemost 2012, 38:47-54. PubMed Abstract | Publisher Full Text OpenURL

  8. Valoti E, Alberti M, Noris M: Posttransplant recurrence of atypical hemolytic uremic syndrome.

    J Nephrol 2012, 25:911-917. PubMed Abstract | Publisher Full Text OpenURL

  9. Anagnou NP, Papanicolaou N, Fessas P: Recurrent attacks of hemolytic uremic syndrome.

    Haematologia (Budap) 1991, 24:101-105. OpenURL

  10. Kielstein JT, Beutel G, Fleig S, Steinhoff J, Meyer TN, Hafer C, Kuhlmann U, Bramstedt J, Panzer U, Vischedyk M, Busch V, Ries W, Mitzner S, Mees S, Stracke S, Nürnberger J, Gerke P, Wiesner M, Sucke B, Abu-Tair M, Kribben A, Klause N, Schindler R, Merkel F, Schnatter S, Dorresteijn EM, Samuelsson O, Brunkhorst R: Best supportive care and therapeutic plasma exchange with or without eculizumab in Shiga-toxin-producing E. coli O104:H4 induced haemolytic-uraemic syndrome: an analysis of the German STEC-HUS registry.

    Nephrol Dial Transplant 2012, 27:3807-3815. PubMed Abstract | Publisher Full Text OpenURL

  11. Medina PJ, Sipols JM, George JN: Drug-associated thrombotic thrombocytopenic purpura-hemolytic uremic syndrome.

    Curr Opin Hematol 2001, 8:286-293. PubMed Abstract | Publisher Full Text OpenURL

  12. Zakarija A, Bennett C: Drug-induced thrombotic microangiopathy.

    Semin Thromb Hemost 2005, 31:681-690. PubMed Abstract | Publisher Full Text OpenURL

  13. Furlan M, Lämmle B: Aetiology and pathogenesis of thrombotic thrombocytopenic purpura and haemolytic uraemic syndrome: the role of von Willebrand factor-cleaving protease.

    Best Pract Res Clin Haematol 2001, 14:437-454. PubMed Abstract | Publisher Full Text OpenURL

  14. Petruzziello-Pellegrini TN, Yuen DA, Page AV, Patel S, Soltyk AM, Matouk CC, Wong DK, Turgeon PJ, Fish JE, Ho JJD, Steer BM, Khajoee V, Tigdi J, Lee WL, Motto DG, Advani A, Gilbert RE, Karumanchi SA, Robinson LA, Tarr PI, Liles WC, Brunton JL, Marsden PA: The CXCR4/CXCR7/SDF-1 pathway contributes to the pathogenesis of Shiga toxin–associated hemolytic uremic syndrome in humans and mice.

    J Clin Invest 2012, 122:759-776. PubMed Abstract | Publisher Full Text | PubMed Central Full Text OpenURL

  15. Saini V, Marchese A, Majetschak M: CXC chemokine receptor 4 is a cell surface receptor for extracellular ubiquitin.

    J Biol Chem 2010, 285:15566-15576. PubMed Abstract | Publisher Full Text | PubMed Central Full Text OpenURL

  16. Majetschak M, Zedler S, Hostmann A, Sorell LT, Patel MB, Novar LT, Kraft R, Habib F, De Moya MA, Ertel W, Faist E, Schade U: Systemic ubiquitin release after blunt trauma and burns: association with injury severity, posttraumatic complications, and survival.

    J Trauma 2008, 64:586-596.

    discussion 596–598

    PubMed Abstract | Publisher Full Text OpenURL

  17. Clark WF: Thrombotic microangiopathy: current knowledge and outcomes with plasma exchange.

    Semin Dial 2012, 25:214-219. PubMed Abstract | Publisher Full Text OpenURL