scholarly journals BACTERIOLOGY OF SPONTANEOUS BACTERIAL PERITONITIS

2020 ◽  
Vol 14 (04) ◽  
pp. 551-555
Author(s):  
DILSHAD MUHAMMAD ◽  
Aamir Husain ◽  
MASOOD JAVED ◽  
Abdul Qayyum ◽  
MUHAMMAD NAEEM IQBAL

Cirrhosis is a major cause of mortality worldwide and is the most common non neoplastic cause ofdeath among hepatobiliary and digestive diseases. Ascites is often among the first signs of de-compensation in patientswith chronic liver disease. Spontaneous Bacterial Peritonitis (SBP) (with out any source of infection) occurs in 30% ofpatients with ascites. Common causative organisms include escherichia coli, pneumococcus, Klebsiella and anaerobes.It has a 25% mortality and recurs in 70% of patients within a year. Objective: To determine the pathological agentscausing SBP in patients with liver cirrhosis. Design: Descriptive study. Setting: Medical Ward Allied and K.M. HospitalsFaisalabad. Period: From 17 Nov 2004 to 15 May 2005. Patients & Materials. Fifty patients of either sex havingcirrhosis of liver and ascites were included according to the criteria i.e ascitic fluid leukocyte count of >500 cells/L or>250 PMN, while results of bacterial cultures of ascitic fluid were pending. Results: Out of 50 patients, 27 (54%) weremales and 23 (46%) females. Mean age of whole the population was found to be 51±12.49) yrs. Classical spontaneousbacterial peritonitis was present in 27 patients and Culture Negative Neutrocytic Ascites (CNNA) in 23(46%) patients.Out of 50 patients, 27(54%) samples of ascitic fluid showed positive culture reports. E Coli was isolated in 9(18%)cases. Klebsiella pneumoniae in 6(12%), streptococcus pneumoniae 4(8%), staphylococcus aureus 2(4%),pseudomonas aeruginosa 2(4%). Acinobacter 2(4%) and proteus mirabilis 2(4%). E.Coli is the commonest organismfollowed by klebsiella pneumoniae.

2006 ◽  
Vol 13 (02) ◽  
pp. 201-205
Author(s):  
MUHAMMAD IMRAN ◽  
Haroon-ur- Rashid ◽  
SHOAIB NAIYAR HASHMI ◽  
Assawar Hussain ◽  
ASHFAQ ALTAF

Objective: To evaluate the prevalence, diagnostic criteria and microbialspectrum of spontaneous bacterial peritonitis (SBP) and its variants in cirrhotic patients with ascites. Design: A hospitalbased prospective study carried out in cirrhotic patients with ascites. Place and duration of Study: The study wasconducted in the Department of Medicine Military Hospital Rawalpindi during October 2000 to March 2002. Subjectand Methods: One hundred and eighty consecutive patients of cirrhotic liver between the ages of 20-65 yearspresenting with ascites reporting to outdoor patient department of Military Hospital Rawalpindi were included in thestudy. The diagnosis of cirrhosis was made on history, clinical examination and the ultrasonographic findings. Thesepatients were subjected to ascites fluid tap and the patients were divided into SBP and non-SBP groups in the light ofresults of ascitic fluid routine examination and culture. The SBP group was further categorized into culture positive SBP,culture negative neutrocytic ascites (CNNA) and bacterascites (BA) on the basis of culture results and total leukocytecount, absolute polymorphonuclear leukocyte count per cubic mm of ascitic fluid. Results: The study included 144males and 36 females having cirrhosis with ascites. The mean age of these patients was 52.32±7.87 years. On thebasis of routine examination and culture of tapped ascitic fluid from these cases 57 of 180(31.66%) patients werediagnosed to have SBP or its variants. In addition to classic SBP in 18(31.58%) patients, its variants namely culturenegative neutrocytic ascites and bacterascites were detected in 37(64.92%) and two (3.5%) cases respectively. E. coliwas the most frequently cultured organism. It was isolated in 12 cases of SBP (60%). In 4 cases (20%) Klebsiella wascultured whereas Proteus mirabilus and Streptococcus were reported in two cases (10%) each. Conclusion: This studyindicates that spontaneous bacterial peritonitis is common and potentially fatal complication in cirrhotic patients withascites. E. coli is the most frequent offending organism.


Author(s):  
Girish Iyyanna ◽  
Manjunath F. V. ◽  
Taruni Ng

Background: Spontaneous bacterial peritonitis (SBP) is the most common bacterial infection in cirrhosis, accounting for 10%-30% of all reported bacterial infections in the patients admitted to hospital. Spontaneous bacterial peritonitis (SBP) is the most frequent and life-threatening infection in patients with liver cirrhosis. All forms of cirrhosis have been reported to be complicated by SBP. A delay in the time period between the collection of the ascitic fluid sample, and its inoculation into the blood culture media, has been one of the reasons implicated to account for low-test positivity. There was lack of studies for comparing the bacterial yield between bedside inoculated blood culture bottles with ascitic fluid over delayed inoculation in the detection of SBP. Hence this study is done to compare the bacterial yield between bedside inoculated blood culture bottles with ascitic fluid over delayed inoculation for the detection of SBP.Methods: Cross sectional study.Results: Maximum number of cases of cirrhosis with ascites with SBP was seen in the age group of 31-40years (54.4%) with mean age of study population being 39.66years, more common in males, bed side inoculation yielded more positive culture reports compared to delayed inoculation and E. coli and klebsilla being the common organisms.Conclusions: Difference between 2 culture methods in isolating organism in SBP cases was not statically significant. But, among culture positive cases, this study demonstrates that bedside inoculation of blood culture bottles is superior to delayed laboratory inoculation.


Author(s):  
Sehrish Jahan Asif ◽  
Murataza Gondal ◽  
Shahida Parveen ◽  
Sumera Mushtaq ◽  
Shumaila Awan ◽  
...  

Background: Spontaneous bacterial peritonitis (SBP) is the bacterial infection of ascitic fluid in the absence of other apparent causes. It is the most prevalent and serious infection in cirrhosis and leads to significant morbidity and mortality. The frequency of SBP in hospitalized patients with cirrhosis varies from 7 to 23% in the west and it is around 33% in Pakistan. Our study aim was to determine the frequency of microbial organisms isolated from spontaneous bacterial peritonitis in cirrhotic patients. Material and Methods: We did a cross-sectional study at the Department of Medicine, Fauji Foundation Hospital Rawalpindi for 6 months. Cirrhosis was diagnosed on the bases of clinical, biochemical and ultrasonography findings. Peripheral blood samples were obtained for the evaluation of complete blood cell count, polymorphonuclear leukocyte count, albumin and coagulation parameters. At the same time, the patients underwent paracentesis and a 20ml ascitic fluid sample was taken for culture sensitivity along with routine biochemical examination from the pathology department lab at our hospital. Results: A total of 150 patients were enrolled according to the inclusion criteria of the study. The mean age (yrs) of patients was 32.3+9.31. The frequency and percentages of male and female patients were 70 (46.7) and 80 (53.3) respectively. Frequency and percentages of E Coli and streptococcal pneumonia were 94 (62.7) and 34 (22.7) respectively, whereas frequency and percentages of staph aureus and Klebsiella were 22 (14.7). Conclusion: SBP is quite common in patients with cirrhosis. It should be suspected in all such cases presenting with typical or atypical features. E Coli was the most common causative organisms in our study but gram-positive organisms were quite frequent as well. Keywords: SBP, Cirrhosis, Peritonitis.


2019 ◽  
Vol 26 (03) ◽  
Author(s):  
Sana Jafri ◽  
Riaz Hussain Awan ◽  
SEEMA Nayab ◽  
Khadim Hussain Awan

Objectives: To determine the frequency of culture positive (SBP) and culture negative spontaneous bacterial peritonitis (neutrocytic ascites) in cirrhotic population. Period: The six months (November 08th 2012 to May 07th 2013). Study Design: Descriptive cross-sectional study. Setting: Department of Gastroenterology at Liaquat National Hospital. Total 107 patients of liver cirrhosis with ascites admitted in our hospital. All the specific patients had ascitic fluid DR and C/S were enrolled and evaluated. Patient’s information was recorded on proforma and analyzed by using SPSS-20.0. Results: SBP was detected in 10 7 patients aged between 18 and 67 years included in study. Out of 107 patients with SBP 23 (21.5%) were culture positive while 84 (78.5%) were culture negative. In the culture positive group,19 (82.6%) were male and 4 (17.4%) were female while in culture negative group 46 (54.76%) were male and 38 (45.24%) were female. The ascitic fluid mean total leukocyte count in patients with culture positive ascites was 5140.39 /mm3 and in culture negative ascites was 2654.26 / mm3. The ascitic fluid mean neutrophils count in subjects with culture positive ascites was 75.57% and in culture negative ascites was 76.02%. The ascitic fluid mean lymphocyte count in individuals had culture positive ascites was 26.09 % and in subjects had culture negative ascites was 23.97%. Conclusion: Frequency of culture negative ascites is greater than culture positive ascites in SBP. The ascitic fluid mean total leucocyte count for culture positive ascites is greater than culture negative ascites. Mortality is high in culture positive ascites.


Author(s):  
Shewtank Goel ◽  
Pooja Tripathi Pandey ◽  
Abhay Kumar ◽  
Nidhish Kumar ◽  
Deval Kumar Arora ◽  
...  

Background: A good and an effective empirical treatment of SBP is not possible unless bacteriological spectrum and their antibiogram is clear. This becomes more important in country like India due to high antibiotic resistance.  Authors aim was to assess the prevalence of SBP, clinical and microbiological profile of its variants, in patients with cirrhosis seeking care at a tertiary care teaching hospital.Methods: Patients of liver cirrhosis with ascites seeking care at study subject during January- December 2018 formed the study population. Diagnosis was based on clinical examination, biochemical investigation and ultrasonography. Diagnostic abdominal paracentesis was performed on subjects within 24 hours of admission. Ascitic fluid was aspirated. It was sent for microbiological examination.Results: Prevalence of SBP was 16.12%. Out of total ten subjects with Spontaneous Bacterial Peritonitis (SBP), six subjects were of Culture Negative Neutrocytic Ascites (CNNA). Thus most common (60%), variant of Spontaneous Bacterial Peritonitis (SBP) was Culture Negative Neutrocytic Ascites (CNNA). Prevalence of Mono-microbial Non-neutrocytic Bacterascites (MNBA) and Classic-Spontaneous Bacterial Peritonitis (C-SBP) was 20%.  Two subjects found positive for MNBA, Staphylococcus aureus and Acinitobacter spp. was detected in each patient. Klebseila pneumonia, Escherichia coli and Coagulase negative Staphylococcus were found in ascitic fluid culture of C-SBP. In clinical variants of SBP, 80% subject’s complaint about abdominal pain. Hepatic-encephalopathy and fever was seen in 7(70%) patients. Rebound tenderness was seen among 60%.Conclusions: Diagnostic paracentesis should be advised to all cirrhotic patients with ascites. Ascitic fluid analysis should be sent for better selection of antibiotics thus better outcome of cirrhotic patients.


2021 ◽  
Vol 11 (1) ◽  
pp. 227
Author(s):  
Naim Abu-Freha ◽  
Tal Michael ◽  
Liat Poupko ◽  
Asia Estis-Deaton ◽  
Muhammad Aasla ◽  
...  

(1) Background: Spontaneous bacterial peritonitis (SBP) is a feared complication of liver cirrhosis. We investigated the prevalence of SBP, positive ascitic fluid cultures, and risk factors for mortality. (2) Methods: A retrospective analysis of all patients with cirrhosis hospitalized or in follow-up in a single center between 1996 and 2020. The clinical data, long-term complications, and mortality of SBP patients were compared with those of non-SBP patients. Ascitic fluid positive culture was compared with those without growth. (3) Results: We included 1035 cirrhotic patients, of which 173 (16.7%) developed SBP. Ascitic fluid culture growth was found in 47.4% of the SBP cases, with Escherichia coli bacteria detected in 38%, 24.4% grew ESBL-producing bacteria, and 14.5% displayed multidrug resistance. In a Cox regression model, SBP, male sex, prolonged INR at diagnosis, and hepatocellular carcinoma were found to be risk factors for mortality in cirrhotic patients. The long-term all-cause mortality was 60% in non-SBP and 90% in SBP patients. (4) Conclusions: Only a minority of cirrhotic patients developed SBP, 47.4% of which had positive ascitic fluid cultures with high antibiotic resistance. Growth of ESBL and multidrug resistant organisms is becoming more frequent in the clinical setting, reaching SBP mortality of 90%.


2018 ◽  
Vol 55 (1) ◽  
pp. 23-27 ◽  
Author(s):  
Paulo Roberto Lerias de ALMEIDA ◽  
Gabriel Stefani LEÃO ◽  
Charlles David Gonçalves GONÇALVES ◽  
Rafael Veiga PICON ◽  
Cristiane Valle TOVO

ABSTRACT BACKGROUND: Spontaneous bacterial peritonitis is a serious complication in cirrhotic patients, and changes in the microbiological characteristics reported in the last years are impacting the choice of antibiotic used for treatment. OBJECTIVE: The aim of the present study is to evaluate the changes in the epidemiology and bacterial resistance of the germs causing spontaneous bacterial peritonitis over three different periods over 17 years. METHODS: All cirrhotic patients with spontaneous bacterial peritonitis and positive culture of ascites fluid were retrospectively studied in a reference Hospital in Southern Brazil. Three periods were ramdomly evaluated: 1997-1998, 2002-2003 and 2014-2015. The most frequent infecting organisms and the sensitivity in vitro to antibiotics were registered. RESULTS: In the first period (1997-1998) there were 33 cases, the most common were: E. coli in 13 (36.11%), Staphylococcus coagulase-negative in 6 (16.66%), K. pneumoniae in 5 (13.88%), S. aureus in 4 (11.11%) and S. faecalis in 3 (8.33%). In the second period (2002-2003), there were 43 cases, the most frequent were: Staphylococus coagulase-negative in 16 (35.55%), S. aureus in 8 (17.77%), E. coli in 7 (15.55%) and K. pneumoniae in 3 (6.66%). In the third period (2014-2015) there were 58 cases (seven with two bacteria), the most frequent were: E. coli in 15 (23.1%), S. viridans in 12 (18.5%), K. pneumoniae in 10 (15.4%) and E. faecium 5 (7.7%). No one was using antibiotic prophylaxis. Considering all staphylococci, the prevalence increased to rates of the order of 50% in the second period, with a reduction in the third period evaluated. Likewise, the prevalence of resistant E. coli increased, reaching 14%. CONCLUSION: There was a modification of the bacterial population causing spontaneous bacterial peritonitis, with high frequency of gram-positive organisms, as well as an increase in the resistance to the traditionally recommended antibiotics. This study suggests a probable imminent inclusion of a drug against gram-positive organisms in the empiric treatment of spontaneous bacterial peritonitis.


2018 ◽  
Vol 25 (04) ◽  
pp. 589-593
Author(s):  
Umme Aeman Khan ◽  
Hamna Iqbal ◽  
Muhammad Omer Aslam ◽  
Muhammad Ehtisham Saqib ◽  
Hafiz M. Yassen ◽  
...  

Objectives: To find out the diagnostic accuracy of ascitic fluid LactateDehydrogenase in diagnosis of Spontaneous bacterial peritonitis using ascitic fluid absoluteneutrophil count equal to or greater than 250 cells/mm3 as a Gold Standard. Study Design:Cross sectional (validation) study. Setting: This study was conducted in department ofMedicine, Madina Teaching Hospital Faisalabad. Duration of Study: 6 months starting afterapproval of synopsis (From:01-06-2016 to 30-11-16). Methodology: 10 ml of ascitic fluidwas withdrawn from these patients, and sent for cytology and biochemistry. Ascitic fluid cellcount, total protein, albumin and LDH wascalculated along with serum albumin and serumLDH. Serum LDH and ascitic fluid LDH was calculated by using Cobas C311 Roche Analyzer,serum/ascitic albumin gradient (SAAG) was calculated by subtracting ascitic albumin fromserum albumin to prove portal hypertension as a cause of ascites. AsciticLDH/serum LDH ratiowas calculated by dividing ascitic LDH by serum LDH.Absolute neutrophil count was derivedfrom total WBC count. Results: In our study, mean age was calculated as 45.37+11.13 years,53.75% (n=43) were male and 46.25% (n=37) were females. Frequency SBP on gold standardwas recorded in 52.5% (n=42). Diagnostic accuracy of ascitic fluid lactate dehydrogenasein diagnosis of spontaneous bacterial peritonitis using ascitic fluid absolute neutrophil countequal to or greater than 250 cells/mm3 as a gold standard was recorded as 82.22%, 85.71%,88.09%, 78.95%, 83.75% for sensitivity, specificity, positive predictive value, negative predictivevalue and accuracy rate, positive likelihood ratio was calculated as 5.75 and 0.21 for negativelikelihood ratio was calculated as 5.75. Conclusion: The diagnostic accuracy of ascitic fluidLactate Dehydrogenase is higher in diagnosis of Spontaneous bacterial peritonitis using asciticfluid absolute neutrophil count equal to or greater than 250 cells/mm3 as a Gold Standard.


2016 ◽  
Author(s):  
Rahul D. Arora

Background: Malignancy related ascites encompasses multiple etiologies which include peritoneal carcinomatosis, hepatic synthetic dysfunction due to parenchymal involvement by the tumour, transcoeloemic metastasis and chylous ascites due to lymphatic obstruction. Primary Cancer type, liver metastasis and serum albumin have been listed as independent prognostic markers in malignant ascites. Spontaneous Bacterial Peritonitis is usually seen as a complication of decompensated chronic liver disease due to translocation of bacteria or haematogenous dissemination from a distant focus of infection. The combination of a positive peritoneal fluid culture and an ascitic fluid neutrophil count >250 cells/mm3 and no evidence of intra-abdominal source of infection; or 2) culture negative neutrocytic ascites: the combination of negative peritoneal fluid bacterial culture and neutrophil count >500 cells/mm3, without antibiotics within 7 days with no obvious source of infection are used to define spontaneous bacterialperitonitis. Ciprofloxacin prophylaxis has been proposed as a prophylaxis to reduce the incidence and prevent the recurrence of spontaneous bacterial peritonitis. Materials and Methods: A web search of indexed literature was carried out articles containing information on spontaneous bacterial peritonitis in the setting of malignancy or malignancy related ascites or malignant ascites. Articles that carried relevant information about etiopathogenesis, management and translational research in the context of malignant ascites were also included. Results: A total of 32 articles were analysed and about half of them included in the discussion to answer the research question. Discussion: Inflammatory cytokines released by tumor and immune cells compromise the mesothelial cell layer that lines the peritoneal cavity, exposing the underlying extracellular matrix to which cancer cells readily attach leading to formation of spheroids which imparts resistance to anoikis, apoptosis and chemotherapeutics leading to efficient feed forward progressive cycle of seeding and growth of peritoneal metastasis. Intraperitoneal metastasis can cause peritoneal dysfunction, adhesions and malignant ascites. Epithelial mesenchymal transistion and myofibroblastic transformation occur in the mesothelial cells in response to pathological stimuli. Vascular endothelial growth factor is an important mitogen for endothelial cells and plays an important role in increasing capillary vascular permeability. In preclinical studies systemic administration of VEGF Trap which acts as a decoy receptor for VEGF has shown to decrease the formation of ascites fluid and prevent tumour dissemination. Epithelial ovarian cancer cells have developed various mechanisms to evade immune surveillance like development of surface microvesicles which contain CD 95 ligand leading to apoptosis of immune cells. Higher levels of osteoproteogerin, IL 10 and leptin in the ascitic fluid have been associated with a poor prognosis in malignant ascites. Tethered bowel sign and presence of fluid in the omental bursa on CT have been shown to distinguish between malignant ascites and Cirrhotic ascites with accuracy. Immunological approaches to management of malignant ascites include use of intraperitoneal triamcinolone, interferon, long acting synthetic corticosteroids and the trifoliate antibody catumaxomab. VEGF Inhihibitors like octreotide and long acting depot preparations of lanreotide have also been shown to be feasible therapeutic options. Anti androgenic agents and PARP inhibitors have also been proposed as management options. Spontaneous bacterial peritonitis in the setting of malignancy in the absence of hepatic dysfunction has been reported to have a poorer prognosis than SBP in the setting of decompensated liver disease. Monomicrobial and polymicrobial bacterascites have been proposed in the absence of an elevated neutrophil ascitic fluid count that does not meet the diagnostic criteria. Extensive liver metastasis where the diseased liver can be expected to behave like a cirrhotic liver and gastrointestinal bleeding (on the basis of an isolated case report) have been considered as risk factors for the development of SBP in malignant ascites. In a case series of 8 patients with malignancy related ascites Patients with total ascitic fluid concentration of less than 1 gm per litre were found to be at risk for Spontaneous bacterial peritonitis and warrant flouroquinolone prophylaxis. Conclusion: Spontaneous Bacterial Peritonitis complicating malignant ascites is questionable entity. Good quality Audits and Randomised control trials are warranted to in this domain to enable the definition of incidence, antecedent complications, management and prophylaxis to ensure applicability of translational research to the clinical domain.


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