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Abu-Helalah M, Al-Mnayyis A, Alzoubi H, Al-Abdallah R, Jdaitawi H, Nafi O, Abu-Sal K, Altawalbeh A, Khlaifat A, Al-Zayadneh E, Almaaitah I, Borghol I, Batarseh F, Okkeh O, Dalal A, Alhendi A, Almaaitah M, Al-Lahham A, Gazo M, Abu Ekteish F, Elnasser Z. Epidemiology of Streptococcus pneumoniae Serotypes in Jordan Amongst Children Younger than the Age of 5: A National Cross-Sectional Study. Vaccines (Basel) 2023; 11:1396. [PMID: 37766074 PMCID: PMC10536609 DOI: 10.3390/vaccines11091396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 08/17/2023] [Accepted: 08/21/2023] [Indexed: 09/29/2023] Open
Abstract
INTRODUCTION Streptococcus pneumoniae infections are a major cause of mortality and morbidity worldwide. In Jordan, pneumococcal conjugate vaccines (PCVs) are not included in the national vaccination program. Due to the current availability of several PCVs, including PCV-10, PCV-13, and PCV-15, along with PCV-20, currently undergoing pediatric approvals globally, the decision to introduce PCVs and their selection should be based on valid local data on the common serotypes of Streptococcus pneumoniae. METHODS This cross-sectional study aimed to identify the frequency of serotypes of Streptococcus pneumoniae in children aged below 5 years hospitalized with invasive pneumococcal diseases (IPDs), including pneumonia, septicemia, and meningitis, during the study's duration in representative areas of Jordan. Serotyping for culture-positive cases was based on the capsular reaction test, known as the Quellung reaction. qPCR was conducted on the blood samples of patients with lobar pneumonia identified via X-ray or on cerebrospinal fluid for those with a positive latex agglutination test for Streptococcus pneumoniae. RESULTS This study was based on the analysis of the serotypes of 1015 Streptococcus pneumoniae cases among children younger than the age of 5: 1006 cases with pneumonia, 6 cases with meningitis, and 3 cases with septicemia. Only 23 culture-positive cases were identified in comparison to 992 lobar pneumonia cases, which were PCR-positive but culture-negative, with a PCR positivity rate of 92%. Serotypes 6B, 6A, 14, and 19F were the most common serotypes identified in this study, with prevalence rates of 16.45%, 13.60%, 12.12%, and 8.18%, respectively. PCV-10, PCV-13, PCV-15, and PCV-20 coverage rates were 45.32%, 61.87%, 64.14%, and 68.47%, respectively. DISCUSSION To the best of our knowledge, this is the largest prospective study from the Middle East and one of the largest studies worldwide showing the serotypes of Streptococcus pneumoniae. It reveals the urgency for the introduction of a PCV vaccination in Jordan, utilizing recently developed vaccines with a broader serotype coverage.
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Affiliation(s)
- Munir Abu-Helalah
- Department of Family and Community Medicine, Faculty of Medicine, Jordan University, Amman 11942, Jordan
| | - Asma’a Al-Mnayyis
- Department of Clinical Sciences, College of Medicine, Yarmouk University, Irbid 21163, Jordan;
| | - Hamed Alzoubi
- Department of Pathology and Microbiology, King Abdullah University Hospital, Jordan University of Science and Technology, Irbid 22110, Jordan; (H.A.); (Z.E.)
| | - Ruba Al-Abdallah
- Medical Department, MENA Center for Research & Development and Internship, Amman 11931, Jordan; (R.A.-A.); (F.B.); (O.O.); (A.D.); (A.A.)
| | - Hussein Jdaitawi
- Ministry of Health, Princess Rahma Pediatrics Hospital, Irbid 21163, Jordan;
| | - Omar Nafi
- Faculty of Medicine, Mutah University, Mutah 61110, Jordan;
| | - Kamel Abu-Sal
- Vaccines Department, Ministry of Health, Amman 11931, Jordan;
| | - Alaa Altawalbeh
- Royal Medical Services, Amman 1193, Jordan; (A.A.); (A.K.); (M.A.)
| | - Alia Khlaifat
- Royal Medical Services, Amman 1193, Jordan; (A.A.); (A.K.); (M.A.)
| | - Enas Al-Zayadneh
- Department of Pediatrics, Faculty of Medicine, Jordan University, Amman 11942, Jordan;
| | - Ihsan Almaaitah
- Pediatrics Department, Zarqa Governmental Hospital, Zarqa 13116, Jordan;
| | | | - Fadi Batarseh
- Medical Department, MENA Center for Research & Development and Internship, Amman 11931, Jordan; (R.A.-A.); (F.B.); (O.O.); (A.D.); (A.A.)
| | - Omar Okkeh
- Medical Department, MENA Center for Research & Development and Internship, Amman 11931, Jordan; (R.A.-A.); (F.B.); (O.O.); (A.D.); (A.A.)
| | - Abdallah Dalal
- Medical Department, MENA Center for Research & Development and Internship, Amman 11931, Jordan; (R.A.-A.); (F.B.); (O.O.); (A.D.); (A.A.)
| | - Ahmad Alhendi
- Medical Department, MENA Center for Research & Development and Internship, Amman 11931, Jordan; (R.A.-A.); (F.B.); (O.O.); (A.D.); (A.A.)
| | | | - Adnan Al-Lahham
- Department of Biomedical Engineering, School of Applied Medical Sciences, German-Jordanian University, Amman 11931, Jordan;
| | - Mahmoud Gazo
- Department of Central Laboratories, Ministry of Health, Amman 11931, Jordan
| | - Faisal Abu Ekteish
- Department of Pediatrics, Faculty of Medicine, King Abdullah University Hospital, Jordan University of Science and Technology, Irbid 22110, Jordan;
| | - Ziad Elnasser
- Department of Pathology and Microbiology, King Abdullah University Hospital, Jordan University of Science and Technology, Irbid 22110, Jordan; (H.A.); (Z.E.)
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Mbata GC, Chukwuka CJ, Onyedum CC, Onwubere BJC, Aguwa EN. The role of complications of community acquired pneumonia on the outcome of the illness: a prospective observational study in a tertiary institution in eastern Nigeria. Ann Med Health Sci Res 2013; 3:365-9. [PMID: 24116315 PMCID: PMC3793441 DOI: 10.4103/2141-9248.117952] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Community acquired pneumonia (CAP) is a major cause of mortality and morbidity in our environment. Recent data on the role of complications on outcome of CAP are not readily available in Nigeria. AIM This study aims to analyze the influence of complications on the outcome of CAP in a tertiary health center in Eastern Nigeria. SUBJECTS AND METHODS A prospective observational study was carried out on 80 patients with CAP, who met the inclusion criteria. Data relating to their age, gender, and clinical details; severity assessment using CURB 65 (C- confusion, Serum urea > 7mmol/L, R-respiratory rate > 30, B-systolic BP > 90 and diastolic BP ≤ 60, age > 65 years.) scoring system, laboratory results, complications, and outcome (mortality) were collected. The statistical package used for data analysis is SPSS version 17.0 (Chicago IL USA). Data were presented in tables and charts. Sample means, standard deviation, and Chi-square test were used for statistical significance. Severity was assessed using CURB65 scoring system. Outcome of interest was 30 day mortality. In all P value of 0.05 was regarded as significant. RESULTS Eighty patients were recruited for the study, 39 males and 41 females; giving male:female ratio of 1:1.05. The mean age range was 56 (18.0) years. A total of 37 patients were managed as out-patients while 43 were managed as in-patients. Complications were observed in 25 patients. Severe hemodynamic changes and pleural effusion 8/25 (32%) were the most common complications observed. Total mortality was 12/80 (15%). Mortality was higher in in-patients than out-patients however, this was not statistically significant. Mortality in those with complications was 6/25 (24%) compared to 6/55 (11%) in those without complications (P = 0.10). CONCLUSION Mortality rate in patients with CAP though higher in patients with complications numerically were not found to be significantly higher than in those without complications. We posit that other factors like presence of higher severity assessment scores (CURB-65 scores) and co-morbidities may be more important predictors of mortality in CAP patients and should be further studied.
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Affiliation(s)
- GC Mbata
- Department of Medicine, Federal Medical Centre, Owerri, Nigeria
| | - CJ Chukwuka
- Department of Medicine, University of Nigeria Teaching Hospital, Enugu, Nigeria
| | - CC Onyedum
- Department of Medicine, University of Nigeria Teaching Hospital, Enugu, Nigeria
| | - BJC Onwubere
- Department of Medicine, University of Nigeria Teaching Hospital, Enugu, Nigeria
| | - EN Aguwa
- Department of Community Medicine, University of Nigeria Teaching Hospital, Enugu, Nigeria
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Mbata GC, Chukwuka CJ, Onyedum CC, Onwubere BJC. The CURB-65 scoring system in severity assessment of Eastern Nigerian patients with community-acquired pneumonia: a prospective observational study. PRIMARY CARE RESPIRATORY JOURNAL : JOURNAL OF THE GENERAL PRACTICE AIRWAYS GROUP 2013; 22:175-80. [PMID: 23633130 PMCID: PMC6443104 DOI: 10.4104/pcrj.2013.00034] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Revised: 06/20/2012] [Accepted: 01/02/2013] [Indexed: 11/24/2022]
Abstract
BACKGROUND Community-acquired pneumonia (CAP) is a major cause of morbidity and mortality in Nigeria. Severity assessment is a major starting point in the proper management of CAP. The BTS guideline for managing this condition is simple and does not require sophisticated equipment. Adherence to this guideline will improve CAP management in Nigeria. AIMS To assess the usefulness of the CURB-65 score in the management of CAP patients in Nigeria and to determine the outcome in relation to the degree of severity using CURB-65. METHODS A prospective observational study of 80 patients with CAP was carried out in the University of Nigeria Teaching Hospital Enugu, Nigeria from December 2008 to June 2009. The patients were classified into three risk groups and the ability of the CURB-65 score to predict the 30-day mortality rate and the need for ICU admission was determined. RESULTS Eighty patients were recruited, 39 of whom were men, giving a male to female ratio of 1:1.05. The mean age was 56 ± 18 years. Thirty-seven patients (46.3%) were outpatients, 13 with CURB score 0, 21 with CURB score 1, two with CURB score 2, and one with CURB score 3. Of the 43 patients (53.7%) admitted to hospital, six, 13, 14, and 10 had scores of 4, 3, 2, and 1, respectively. The ICU admission rate was 10%. Twelve patients died, 2.2% in the low-risk group, 12.5% in the intermediate-risk group, and 45% in the high-risk group. CONCLUSIONS The CURB-65 score is a simple method of assessing and risk stratifying CAP patients. It is particularly useful in a busy emergency department because of its ability to identify a reasonable proportion of low-risk patients for potential outpatient care.
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Affiliation(s)
- Godwin C Mbata
- Department of Medicine, Federal Medical Centre, Owerri, Nigeria
| | - Chinwe J Chukwuka
- Department of Medicine, University of Nigeria Teaching Hospital Enugu (UNTH), Enugu, Nigeria
| | - Cajetan C Onyedum
- Department of Medicine, University of Nigeria Teaching Hospital Enugu (UNTH), Enugu, Nigeria
| | - Basden J C Onwubere
- Department of Medicine, University of Nigeria Teaching Hospital Enugu (UNTH), Enugu, Nigeria
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Cunha BA. Legionnaires' disease: clinical differentiation from typical and other atypical pneumonias. Infect Dis Clin North Am 2010; 24:73-105. [PMID: 20171547 PMCID: PMC7127122 DOI: 10.1016/j.idc.2009.10.014] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Burke A Cunha
- Infectious Disease Division, Winthrop-University Hospital, 259 First Street, Mineola, Long Island, NY 11501, USA
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Cunha BA, Pherez FM. C. pneumoniae community-acquired pneumonia (CAP) in mimicking Mycoplasma pneumoniae meningoencephalitis complicated by asthma. Heart Lung 2009; 38:530-3. [PMID: 19944878 DOI: 10.1016/j.hrtlng.2009.01.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2008] [Accepted: 01/14/2009] [Indexed: 10/20/2022]
Abstract
Chlamydophila (Chlamydia) pneumoniae is a common, non-zoonotic cause of community-acquired pneumonia (CAP) in ambulatory young adults. C. pneumoniae clinically presents as a mycoplasma-like illness frequently accompanied by laryngitis. C. pneumoniae CAP may also cause nursing home outbreaks in the elderly. Similar to Mycoplasma pneumoniae in immunocompetent hosts, C. pneumoniae CAP usually manifests as a mild/moderately severe CAP. In contrast with Legionnaire's disease, central nervous system involvement is usually not a feature of C. pneumoniae CAP. M. pneumoniae may rarely present with meningoencephalitis accompanied by high cold agglutinin titers. We present the case of a young man who presented with M. pneumoniae-like illness and was hospitalized for severe CAP that was accompanied by a pertussis-like cough and severe headache. Although his chest x-ray showed a right upper lobe infiltrate, a lumbar puncture was performed to rule out meningitis, but his cerebrospinal fluid profile was unremarkable. Titers for non-zoonotic atypical pneumonia pathogens were negative except for a highly elevated C. pneumoniae immunoglobulin-M titer (1:320). Testing for legionella and pertussis was negative. Q fever and adenoviral titers were also negative. Cold agglutinin titers were repeatedly negative. The patient was successfully treated with moxifloxacin but developed permanent asthma after C. pneumoniae CAP. This case is unusual in several aspects. First, C. pneumoniae usually presents as a mild to moderate CAP, but in this case it was severe. Second, hoarseness was absent, which would have suggested C. pneumoniae. Third, wheezing was an important clue to the diagnosis of C. pneumoniae, which is not a clinical finding with other causes of CAP. Fourth, permanent asthma may follow C. pneumoniae, as well as M. pneumoniae CAP. Fifth, severe headache mimicking M. pneumoniae meningoencephalitis may rarely accompany C. pneumoniae CAP.
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Affiliation(s)
- Burke A Cunha
- Infectious Disease Division, Winthrop-University Hospital, Mineola, New York 11501, USA
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Cunha BA, Pherez F, Walls N. Severe cytomegalovirus (CMV) community-acquired pneumonia (CAP) in a nonimmunocompromised host. Heart Lung 2009; 38:243-8. [PMID: 19486794 PMCID: PMC7112647 DOI: 10.1016/j.hrtlng.2008.05.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2008] [Accepted: 05/23/2008] [Indexed: 12/02/2022]
Abstract
BACKGROUND Community-acquired pneumonia (CAP) in an immunocompetent host may be severe because of a variety or combination of host and microbial factors. In patients with severe cardiopulmonary dysfunction, even relatively avirulent pathogens, that is, Mycoplasma pneumoniae, Moraxella catarrhalis, may compromise borderline cardiac/heart function and present clinically as severe CAP. Alternately, patients with Streptococcus pneumoniae and impaired humoral immunity/splenic dysfunction may present as severe CAP. With the exception of Legionnaire's disease, influenza, and adenovirus, pathogen virulence is not a key determinant of CAP severity. METHODS Diagnostically, patients with severe CAP may be approached based on the pattern of infiltrates on chest x-ray together with the severity of hypoxemia (ie, increased A-a gradient: >35). RESULTS We present the case of an immunocompetent adult who presented with severe CAP during peak influenza season. Direct fluorescent antibody testing of his respiratory secretions was negative for influenza, adenovirus, and other respiratory viruses. Diagnostic bronchoscopy was negative for bacterial and fungal pathogens. The only clues to the cause of his severe CAP was the presence of relative lymphopenia, atypical lymphocytosis and elevated serum transaminases. After influenza and adenovirus were ruled out, cytomegalovirus (CMV) CAP was considered. The diagnosis of CMV CAP was made serologically by demonstrating highly elevated IgM CMV titers. Because the diagnosis was made during the patient's recovery late in hospitalization, he did not receive CMV antiviral therapy. CONCLUSION This case should remind clinicians that influenza and adenovirus are diagnostic considerations in patients presenting with severe CAP with diffuse bilateral interstitial infiltrates accompanied by severe hypoxemia in normal hosts. If influenza and adenovirus are ruled out, then CMV CAP, although rare, should be considered, particularly when viral CAP is accompanied by relative lymphopenia, atypical lymphocytosis and increased serum transaminases.
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Affiliation(s)
- Burke A Cunha
- Infectious Disease Division, Winthrop-University Hospital, Mineola, New York 11501, USA
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Atypical pneumonias: current clinical concepts focusing on Legionnaires' disease. Curr Opin Pulm Med 2008; 14:183-94. [PMID: 18427241 DOI: 10.1097/mcp.0b013e3282f79678] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW This review provides clinicians with an overview of the clinical features of the atypical pneumonias. Atypical community-acquired pneumonia pathogens cause systemic infections with pneumonia. The key to the clinical diagnosis of atypical pneumonias depends on recognizing the characteristic pattern of extrapulmonary organ involvement different for each pathogen. As Legionella is likely to present as severe pneumonia and does not respond to beta-lactams, it is important to presumptively diagnose Legionnaires' disease clinically so that Legionella coverage is included in empiric therapy. This study reviews the clinical features and nonspecific laboratory markers of atypical pathogens, focusing on Legionnaires' disease. RECENT FINDINGS Case reports/outbreaks increase our understanding of Legionnaires' disease transmission. Both Mycoplasma pneumoniae and Chlamydophilia pneumoniae may cause asthma. Antimicrobial therapy of Chlamydophilia pneumoniae/Mycoplasma pneumoniae is important to decrease person-to-person spread and to decrease potential long-term sequelae. SUMMARY Atypical pulmonary pathogens cause systemic infections accompanied by a variety of characteristic extrapulmonary features. Clinically, it is possible to differentiate Legionnaires' disease from the other typical/atypical pneumonias. Rapid clinical diagnosis of atypical pathogens, particularly Legionnaires' disease, is important in selecting effective empiric therapy and prompting definitive laboratory testing.
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Abstract
Traditionally, antibiotics have been administered intravenously (IV) for serious systemic infections. As more potent oral antibiotics were introduced, and their pharmacokinetic aspects studied, orally administered antibiotics have been increasingly used for serious systemic infections. Antibiotics ideal for oral administration are those that have the appropriate spectrum, high degree of activity against the presumed or known pathogen, and have good bioavailability. Oral antibiotics with high bioavailability, that is > or = 90% absorbed, achieve serum/tissue concentrations comparable to IV administered antibiotics at the same dose. The popularity of "IV to PO switch therapy" is possible because of the availability of many potent oral antibiotics with high bioavailability. Initial IV therapy is appropriate in patients who are in shock/have impaired intestinal absorption, but after clinical defervescence, completion of therapy should be accomplished with oral antibiotics. As experience with "IV to PO switch therapy" has accumulated, confidence in oral antimicrobics for therapy of serious systemic infections has continued to increase. The trend in treating serious systemic infections entirely with oral antimicrobial therapy will continue, and is clearly the wave of the future.
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Affiliation(s)
- Burke A Cunha
- Infectious Disease Division, Winthrop-University Hospital, Mineola, NY 11501, USA
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Abstract
The choice of diagnostic modality depends on the patient's status, the expertise of the operator and pathologic resources of the hospital, and is a decision that should be guided by the infectious disease consultant and the clinicians involved in the care of the patient. Although the diagnosis must be tissue based, every attempt must be made to arrive at a tissue diagnosis as soon as possible in order to start specific therapy as soon as possible. It is as important to determine that the cause of the patient's pulmonary infiltrate is noninfectious versus infectious. Pulmonary embolic disease, CHF, ARDS, pulmonary hemorrhage, and pulmonary drug reactions may be reversible and require nonantimicrobially based therapies to treat the patient. Often clinicians are overwhelmed by differential diagnostic possibilities of exotic infectious disease pathogens and overlook easily treatable noninfectious disease mimics of pneumonia. Although differential diagnostic possibilities are great in the compromised host, clinicians should not be overwhelmed by diagnostic possibilities. Instead, clinicians should try to approach the patient syndromically, taking into account the degree and type of immunosuppression, the appearance and behavior of the infiltrates on the chest radiograph and the nature of the host defense defects and time relationships that will limit the differential diagnosis to relatively few diagnostic possibilities. The clinician can then treat empirically patients with presumed bacterial pneumonias and devise a diagnostic plan designed to arrive at a specific tissue diagnosis as soon as possible in patients who are likely to have nonbacterial infection of the lungs.
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Affiliation(s)
- B A Cunha
- Infectious Disease Division, Winthrop University Hospital, Mineola, New York, USA
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Abstract
Optimal empiric therapy of CAP is with appropriate monotherapy (e.g., doxycycline, levofloxacin). Combination therapy is problematic because of potential side effects and high cost. Empiric coverage should have a high degree of activity against both typical and atypical pathogens. The antibiotic selected should have an excellent side-effect profile and be relatively inexpensive. Clinicians should be selective in their choice of antibiotic for CAP and choose an antimicrobial that has little or no resistance potential, is relatively inexpensive, and permits i.v.-to-PO switch monotherapy.
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Affiliation(s)
- B A Cunha
- State University of New York School of Medicine, Stony Brook, USA
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Marik PE. The clinical features of severe community-acquired pneumonia presenting as septic shock. Norasept II Study Investigators. J Crit Care 2000; 15:85-90. [PMID: 11011820 DOI: 10.1053/jcrc.2000.16460] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE The purpose of this article was to determine the outcome, clinical and prognostic features, and microbiology of a large group of patients with community-acquired pneumonia (CAP) presenting in septic shock. MATERIALS AND METHODS The placebo limb of the Norasept II database was examined. Data were collected on patients in septic shock with a diagnosis of CAP who presented to a participating site from home. RESULTS One hundred and forty-eight patients met the study criteria. The 28-day survival was 53%. One hundred and four pathogens were isolated from 77 (52%) patients with 24 (16%) patients having polymicrobial infections. The most common pathogen was Streptococcus pneumoniae (19%), followed by Staphylococcus aureus (18%), Haemophilus influenzae (14%), Klebsiella pneumoniae (11%), and Pseudomonas aeruginosa (7%). Infection with P aeruginosa or Acinetobacter species carried a very high mortality (82%). The only clinical variables recorded in the database that could identify patients with pseudomonas or acinetobacter infection was a history of alcohol abuse. Comorbidities were present in 74% of patients, involving predominantly the cardiorespiratory system. Logistic regression analysis demonstrated APACHE II score and serum interleukin 6 (IL-6) concentration to be significant independent predictors of mortality. Patients with pseudomonas or acinetobacter infection had significantly higher IL-6 levels and significantly lower tumor necrosis factor alpha levels when compared with the rest of the cohort of patients. CONCLUSION A diverse spectrum of both gram-positive and gram-negative pathogens were implicated in patients with CAP presenting in septic shock, necessitating broad spectrum empiric antimicrobial coverage. This coverage should include antipseudomonal activity, particularly in alcoholic patients. Severity of illness (APACHE II score) and IL-6 levels were important prognostic factors. Infection with P aeruginosa and Acinetobacter species carried a very high mortality.
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Affiliation(s)
- P E Marik
- Department of Internal Medicine, Washington Hospital Center, Washington, DC 20010-2975, USA
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