Spontaneous Bacterial Peritonitis Caused by Listeria monocytogenes Associated with Ascitic Fluid Lymphocytosis: A Case Report and Review of Current Empiric Therapy

Listeria monocytogenes as a Cause of Spontaneous Bacterial Peritonitis

Spontaneous bacterial peritonitis is a common and often serious complication of long standing ascites in the presence of advanced liver disease. We report a case of a 74-year-old woman with alcoholic cirrhosis admitted to our emergency department with a 1-week history of diffuse abdominal pain and increased abdominal perimeter. On physical examination, she had a significant abdominal distention and a positive fluid wave consistent with ascites. A diagnosis of spontaneous bacterial peritonitis was made and empiric therapy with ceftriaxone was started but the patient’s condition worsened. Four days later Listeria monocytogenes was detected in peritoneal fluid culture and ampicillin was initiated according to in vitro sensibility test. The patient completed 14 days of treatment with clinical and laboratory improvement. Listeria is an uncommon cause of spontaneous bacterial peritonitis. Clinicians should be aware of the uncommon agents of spontaneous bacterial peritonitis, mainly when there is not a proper response to therapy.

[Spontaneous bacterial peritonitis caused by Listeria monocytogenes: eight case reports (1992-2017) and literature review]

OBJECTIVE

Spontaneous bacterial peritonitis (SBP) is a frequent and severe entity in patients with cirrhosis or ascites due to other causes. However, Listeria monocytogenes is a microorganism that has been scarcely identified as a causative agent of SBP.

METHODS

In this study, a descriptive analysis of cases of L. monocytogenes SBP was carried out in our center for 26 years (1992-2017).

RESULTS

A total of eight patients were diagnosed, with an average age of 58 years, with no differences in sex distribution and all of them were community acquired cases. Half of the patients had underlying liver disease, two of them active malignancies; one was undergoing continuous ambulatory peritoneal dialysis and the last one with hypertensive heart disease. Six (75%) of the patients received a third-generation cephalosporin as empirical treatment. The clinical course was favorable after receiving directed antibiotic treatment in five (62.5%) of the patients. However, three of them, under the age of 59, died. Serotyping of L. monocytogenes isolates revealed that half of them were serovar 4, two 1 / 2a and the remaining one 1 / 2c. All strains were susceptible to ampicillin, meropenem, erythromycin and cotrimoxazole.

CONCLUSIONS

We conclude by emphasizing the importance of taking this etiology into account in patients with underlying liver disease and with clinical or laboratory data suggesting SBP, mainly due to the need for specific antibiotic treatment different from conventionally empirically used.

Are Nectarines to Blame? A Case Report and Literature Review of Spontaneous Bacterial Peritonitis Due to Listeria monocytogenes

Spontaneous bacterial peritonitis (SBP) is a frequent and potentially deadly complication of ascites in patients with end-stage liver disease. Unlike other pathogens more commonly implicated in SBP, Listeria monocytogenes is a nonenteric organism that maybe acquired either sporadically or in the setting of foodborne outbreaks. Listeria is an unusual cause of SBP that presents particular management challenges because of the organism's intrinsic resistance to first-line and empiric SBP treatment that would otherwise include third-generation cephalosporins. We present here a case of Listeria SBP in a 68-year-old man with previously unidentified cirrhosis. His infection occurred in the context of a nationwide fruit recall for Listeria contamination, prompting an epidemiologic investigation. After describing the case, we then review the extant literature on Listeria peritonitis. To date, no case studies on Listeria SBP have systematically described risk factors for Listeria acquisition. As incidence of Listeria SBP is increasing, however, knowledge of patient risk factors, especially foodborne exposure risks, may be important in preventing future episodes of Listeria SBP, and in accurately monitoring foodborne outbreaks.