scholarly journals Prevalence and Possible Predictors of Drug-Resistant Pseudomonas aeruginosa in External Ocular Infections: A Single-Center, Retrospective, Cross-Sectional Study

Cureus ◽  
2020 ◽  
Author(s):  
Ken-ichi Sato
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Cross Sectional Study ◽  
Drug Resistant ◽  
Sectional Study ◽  
Single Center ◽  
Cross Sectional ◽  
Ocular Infections

scholarly journals Prevalence of aerobic pathogenic bacteria isolated from patients with burn infection and their antimicrobial susceptibility patterns in Al-Najaf City, Iraq- a three-year cross-sectional study.

F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 1157 ◽  
Author(s):  
Ahmed Abduljabbar Jaloob Aljanaby ◽  
Israa Abduljabbar Jaloob Aljanaby
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Cross Sectional Study ◽  
Diffusion Method ◽  
Resistant Bacteria ◽  
Drug Resistant ◽  
Bacterial Isolates ◽  
Sectional Study ◽  
Cross Sectional ◽  
Extended Spectrum ◽  
Drug Resistant Bacteria

Background: Burn infections are one of the most common serious illnesses caused by pathogens, mainly by both gram-negative and gram-positive bacteria. The aim of this study was to detect of the prevalence of multi-drug resistant and extended-spectrum β-lactamase-producing (ESBL) bacteria isolated from inpatients with burn infection and the antimicrobials sensitivity patterns of all bacterial isolates during three years. Methods: This cross-sectional study was performed in Al-Najaf Central Hospital in Al-Najaf City, Iraq from January 2015 to December 2017. A total of 295 burns swabs were collected from hospitalized patients with burn infection. All grown bacterial isolates were identified by standardized microbiological tests. Antimicrobials susceptibility testing was done using the disc diffusion method. Multi-drug, extensive-drug and pan-drug resistant bacteria and extended-spectrum β-lactamase-producing bacteria were determined according to standardized methods and guidelines. Results: Of the 295 burn swabs, 513 different bacteria strains were isolated. Pseudomonas aeruginosa was the most common bacteria with 142 isolates (27.6%) followed by methicillin resistance Staphylococcus aureus 106 isolates (20.6%), while Staphylococcus typhi was the least common bacteria with only 17 isolates (3.3%). 323 (63%) different bacterial strains were isolated from patients who stayed in hospital for 15 days. Most bacterial isolates were resistant to most antimicrobials with high percentages. Out of the 513 bacterial isolates; only 33 isolates (6.4%) were resistant to imipenem 10µg and 464 isolates (90.4%) were multi-drug resistant, 20 isolates (14%) were extensive-drug resistant and 17 isolates (3.3%) were pan-drug resistant. Pseudomonas aeruginosa was the most common ESBL-producing bacteria (51 isolates-35.9%). Conclusions: There was a high prevalence of multi-drug resistant bacteria in burn infection in Al-Najaf hospital. Pseudomonas aeruginosa was the most common multi-drug resistant bacteria, and the most common of ESBL bacteria causing burn infection over the three years.

scholarly journals Virulence factors in multidrug (MDR) and Pan-drug resistant (XDR) Pseudomonas aeruginosa: a cross-sectional study of isolates recovered from ocular infections in a high-incidence setting in southern India

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Poonam Naik ◽  
Suchita Pandey ◽  
Satyashree Gagan ◽  
Sudeshna Biswas ◽  
Joveeta Joseph
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Cross Sectional Study ◽  
Drug Resistant ◽  
Virulence Determinants ◽  
Cross Sectional ◽  
Ocular Infections ◽  
High Incidence ◽  
Urease Production ◽  
Vitek 2

Abstract Background Global concerns have been raised due to upward trend of Multi-drug Resistant (MDR) Pseudomonas aeruginosa reports in ocular infections. Our aim was to characterize the virulence determinants of MDR P. aeruginosa causing ocular infections. Methods P. aeruginosa strains were isolated from 46 patients with conjunctivitis (2), endophthalmitis (11) and active keratitis (25) seen at our Institute, between 2016 and 2020. The isolates were identified by Vitek-2 and characterized based on growth kinetics, biofilm formation, motility, pyoverdine and pyocyanin production, phospholipase and catalase activity, urease production along with expression of exotoxins (exo-A, exo-U and exo-S) and correlated to its antibiotic profiles. Results Of the 46 P. aeruginosa isolates, 23 were MDR and were significantly (p = 0.03) associated with older (> 65) patients, along with higher production of pyoverdine (58.3%), pyocyanin (30.4%), phospholipase (91.6%) and protease (62.5%) activity, formed strong biofilms and exo-A (30.4%). No significant relation between motility, urease and catalase production with antibiotic susceptibility was observed. Heatmap and PCoA analysis confirmed this unique virulence profile associated with MDR-PA strains. Conclusion Phenotypic characteristics of P.aeruginosa might be responsible for increased colonization and antibiotic resistance observed in vivo and understanding these differences may lead to development of clinical guidelines for the management of MDR infections.

scholarly journals Factors Influencing HIV Drug Resistance among Pregnant Women in Luanda, Angola: Findings from a Cross-Sectional Study

2021 ◽  
Vol 6 (1) ◽  
pp. 29
Author(s):  
Cruz S. Sebastião ◽  
Joana Morais ◽  
Miguel Brito
Keyword(s):  
Drug Resistance ◽  
Pregnant Women ◽  
Rural Areas ◽  
Cross Sectional Study ◽  
Drug Resistant ◽  
Sectional Study ◽  
Cross Sectional ◽  
Hiv Drug Resistance ◽  
Hiv 1 ◽  
High Educational

The increase in HIV infection and drug-resistant strains is an important public health concern, especially in resource-limited settings. However, the identification of factors related to the propagation of infectious diseases represents a crucial target offering an opportunity to reduce health care costs as well as deepening the focus on preventing infection in high-risk groups. In this study, we investigate the factors related to drug resistance among HIV-infected pregnant women in Luanda, the capital city of Angola. This was a part of a cross-sectional study conducted with 42 HIV-positive pregnant women. A blood sample was collected, and HIV-1 genotyping was carried out using an in-house method. Multivariate analyses were performed to determine the interaction between sociodemographic characteristics and drug resistance. HIV drug resistance was detected in 44.1% of the studied population. High probabilities of drug resistance were observed for HIV-infected pregnant women living in rural areas (AOR: 2.73; 95% CI: 0.50–14.9) with high educational level (AOR: 6.27; 95% CI: 0.77–51.2) and comorbidities (AOR: 5.47; 95% CI: 0.28–106) and infected with a HIV-1 non-B subtype other than subtype C (AOR: 1.60; 95% CI: 0.25–10.3). The present study reports high HIV drug resistance. Furthermore, older-age, rural areas, high educational levels, unemployed status, having comorbidities, and HIV-1 subtypes were factors related to drug resistance. These factors impact on drug susceptibility and need to be urgently addressed in order to promote health education campaigns able to prevent the spread of drug-resistant HIV strains in Angola.

scholarly journals Epidemiological and pathological characteristics of post-surgical cases of invasive breast cancer among ethnicities of Iran in 2018: A single center cross-sectional study

2020 ◽  
Vol 26 (1) ◽  
pp. 6-9
Author(s):  
Soheila Sayad ◽  
Seyyed Ahmadi ◽  
Reza Nekouian ◽  
Mahshid Panahi ◽  
Khatereh Anbari
Keyword(s):  
Breast Cancer ◽  
Lymph Node ◽  
Invasive Breast Cancer ◽  
Triple Negative ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Single Center ◽  
Cross Sectional ◽  
Familial History ◽  
Number Of Patients

Background: Present study aimed to investigate immunohistochemical parameters in post-surgical cases of invasive breast cancer. Methods: In this single center cross-sectional study we investigated ethnicity, familial history, type of cancer, stage of cancer, lymph node positivity, bilateral involvement, metastasis and immunohistochemical parameters (estrogen and progesterone receptor, human epidermal growth factor receptor 2, as well as frequency of triple positive and triple negative patients merely based on immunohistochemical parameters). Results: Frequency of positive familial history was 27.42% (16.31-38.52%). Lymph node involvement was detected in 55.93% (43.26-68.60%) of the cases. Frequency of positive HER2 was 38.60% (25.96-51.23%). There were 17.54% (7.67-27.42%) of triple positive and 7.02% (0.39-13.65%) of triple negative cases. The most common stage at the time of diagnosis was stage 3 with 43.33% (30.79-55.87%) frequency. In Lur/Lak population higher frequency of positive HER2 cases was detected whereas in Mazani population frequency of positive HER2 cases was low (p=0.0291). Conclusions: These results could contribute to understanding of breast cancer patterns among different ethnicities. In order to draw clear conclusion future investigations have to be done in several health centers, for longer time periods and with larger number of patients.

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