Amikacin in Gram-Negative Paediatric Infections

1978 ◽  
Vol 6 (4) ◽  
pp. 257-265
Author(s):  
Hugo Trujillo ◽  
Rafael Manotas ◽  
Jose Ivan Ramirez ◽  
Alvaro Uribe ◽  
Nancy Agudelo ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Respiratory Tract ◽  
Respiratory Tract Infections ◽  
Intestinal Tract ◽  
Cure Rate ◽  
Gram Negative ◽  
Complete Cure ◽  
Tract Infections ◽  
Gastro Intestinal Tract

Amikacin was used in the treatment of various Gram-negative infections in sixty-six children ranging in age from two days to thirteen years. Over 72% of the infections treated were classified as severe and the remainder were moderate. Among infections in which the site of origin was the urinary or gastro-intestinal tract, amikacin achieved thirty-eight (95%) complete or partial cures in forty patients. In respiratory tract infections, amikacin completely or partially cured six (75%) out of eight patients. The remaining eighteen infections involved skin, soft tissue and other miscellaneous categories in which amikacin therapy resulted in seventeen (94%) complete or partial cures. Overall, amikacin achieved fifty-four complete cures and seven clinical or bacteriological cures in sixty-six patients, which represents an 82% complete cure rate and 10% partial cure rate for all the patients in the study.

scholarly journals Ritkábban előforduló, alsó légúti fertőzést okozó Gram-negatív nem fermentáló pálcák

2018 ◽  
Vol 159 (1) ◽  
pp. 23-30
Author(s):  
Emese Juhász ◽  
Miklós Iván ◽  
Júlia Pongrácz ◽  
Katalin Kristóf
Keyword(s):  
Respiratory Tract ◽  
Lower Respiratory Tract ◽  
Respiratory Tract Infections ◽  
Diffusion Method ◽  
Lower Respiratory Tract Infections ◽  
Gram Negative ◽  
Maldi Tof Ms ◽  
Maldi Tof ◽  
Tract Infections ◽  
Tof Ms

Abstract: Introduction: Glucose non-fermenting Gram-negative bacteria are ubiquitous environmental organisms. Most of them are identified as opportunistic, nosocomial pathogens in patients. Uncommon species are identified accurately, mainly due to the introduction of matrix-assisted laser desorption-ionization time of flight mass spectrometry (MALDI-TOF MS) in clinical microbiology practice. Most of these uncommon non-fermenting rods are isolated from lower respiratory tract samples. Their significance in lower respiratory tract infections, such as rules of their testing are not clarified yet. Aim: The aim of this study was to review the clinical microbiological features of these bacteria, especially their roles in lower respiratory tract infections and antibiotic treatment options. Method: Lower respiratory tract samples of 3589 patients collected in a four-year period (2013–2016) were analyzed retrospectively at Semmelweis University (Budapest, Hungary). Identification of bacteria was performed by MALDI-TOF MS, the antibiotic susceptibility was tested by disk diffusion method. Results: Stenotrophomonas maltophilia was revealed to be the second, whereas Acinetobacter baumannii the third most common non-fermenting rod in lower respiratory tract samples, behind the most common Pseudomonas aeruginosa. The total number of uncommon non-fermenting Gram-negative isolates was 742. Twenty-three percent of isolates were Achromobacter xylosoxidans. Beside Chryseobacterium, Rhizobium, Delftia, Elizabethkingia, Ralstonia and Ochrobactrum species, and few other uncommon species were identified among our isolates. The accurate identification of this species is obligatory, while most of them show intrinsic resistance to aminoglycosides. Resistance to ceftazidime, cefepime, piperacillin-tazobactam and carbapenems was frequently observed also. Conclusions: Ciprofloxacin, levofloxacin and trimethoprim-sulfamethoxazole were found to be the most effective antibiotic agents. Orv Hetil. 2018; 159(1): 23–30.

scholarly journals DISTRIBUTION OF THE CAUSATIVE AGENTS OF RESPIRATORY TRACT INFECTIONS IN CHILDREN

2020 ◽  
Vol 7 (1) ◽  
pp. 39-45
Author(s):  
M. Mishyna ◽  
M. Gonchar ◽  
O. Logvinova ◽  
H. Isaieva ◽  
M. Basiuk
Keyword(s):  
Staphylococcus Aureus ◽  
Respiratory Tract ◽  
Respiratory Tract Infections ◽  
Acute Bronchitis ◽  
Community Acquired Pneumonia ◽  
Gram Positive ◽  
Gram Negative ◽  
Nasal Swabs ◽  
Causative Agents ◽  
Tract Infections

DISTRIBUTION OF THE CAUSATIVE AGENTS OF RESPIRATORY TRACT INFECTIONS IN CHILDREN. Mishyna М., Gonchar M., Logvinova O., Isaieva H., Basiuk M. The study aimed to investigate prevalence of microorganisms depending on the site of isolation and disease. The study involved 48 children aged 1 year to 17 years. Acute bronchitis (54, 17%), community-acquired pneumonia (CAP) (33, 33%), bronchial asthma (12, 50%) were diagnosed. Were isolated 173 strains of microorganisms. Gram-positive microorganisms were detected 106 strains (61, 3%), Gram-negative microorganisms - 49 strains (28, 3%), fungi - 18 strains (10, 4%). We investigated 100 samples from nose (nasal swabs), pharynx (throat swabs) and sputum. In 83 cases were isolated Gram-positive microorganisms, in 36 cases were isolated Gram-negative microorganisms, in 18 cases - fungi. Analysis reviled that Staphylococcus aureus most often isolated from patients with acute bronchitis; Gram-negative microorganisms most often detected from throat swabs, comparing with microorganisms detected from nose swabs and sputum. Keywords: microorganisms, biofilms, respiratory diseases, children.   Анотація ПОШИРЕНІСТЬ ЗБУДНИКІВ ІНФЕКЦІЙ ДИХАЛЬНИХ ШЛЯХІВ У ДІТЕЙ. Мішина М.М, Гончарь М. О., Логвінова О.Л., Ісаєва Г.О., Басюк М.А. Метою дослідження було вивчити переважання умовно-патогенних мікроорганізмів, які викликають захворювання органів дихання у дітей, в залежності від місця виділення та захворювання. У дослідженні було 48 дітей у віці від 1 року до 17 років. Пацієнти були з такими діагнозами: гострі бронхіти (54, 17%), негоспітальні пневмонії (33, 33%), бронхіальна астма (12, 50%). Було виділено 173 штама умовно-патогенних мікроорганізмів. Грампозитивних мікроорганізмів було виділено 106 штамів (61, 3%), грамнегативних мікроорганізмів – 49 штамів (28, 3%), грибів – 18 штамів (10, 4%). Було досліджено 100 зразків з зіву, носу, мокротиння. Грампозитивні мікроорганізми були виділені з 83 зразків, грамнегативні – з 36 зразків, гриби – з 18 зразків. Проведене дослідження довело, що Staphylococcus aureus найчастіше виділявся у пацієнтів з гострими бронхітами. Грамнегативні мікроорганізми частіш за все виділялись зі зразків із зіву в порівнянні з мазками з носу та мокротинням. Ключові слова: мікроорганізми, біоплівки, захворювання органів дихання, діти.   Абстракт РАСПРОСТРАНЕННОСТЬ ВОЗБУДИТЕЛЕЙ ИНФЕКЦИЙ ДЫХАТЕЛЬНЫХ ПУТЕЙ У ДЕТЕЙ. Мішина М.М., Гончарь М. О., Логвінова О.Л., Ісаєва Г.О., Басюк М.А. Целью исследования было изучить преобладание условно-патогенныхмикроорганизмов, вызывающих заболевания органов дыхания у детей, в зависимости от места забора материала и заболевания. Исследование включало 48 детей в возрасте от 1 года до 17 лет. Пациенты находились с такими заболеваниями: острые бронхиты (54, 17%), внегоспитальные пневмонии (33, 33%), бронхиальная астма (12, 50%). Всего было выделено 173 штамма условно-патогенных микроорганизмов. Грамположительных микроорганизмов было выделено 106 штаммов (61, 3%), грамотрицательных микроорганизмов – 49 штаммов (28, 3%), грибов – 18 штаммов (10, 4%). Было исследовано 100 образцов из зева, носа, мокроты. Грамположительные микроорганизмы были выделены из 83 образцов, грамотрицальные – из 36 образцов, грибы – из 18 образцов. В ходе исследования было доказано, что Staphylococcus aureus чаще всего выделялся от пациентов с острыми бронхитами. Грамотрицательные микроорганизмы чаще всего выделялись из мазков из зева по сравнению с мазками из носа и мокротой. Ключевые слова: микроорганизмы, биопленки, заболевания органов дыхания, дети.

scholarly journals Pneumonia in Cats associated with Neisseria sp.

2021 ◽  
Vol 71 (2) ◽  
pp. 211-218
Author(s):  
Herica Makino ◽  
Alessandra Tammy Hayakawa Ito De Sousa ◽  
Lucas Avelino Dandolini Pavelegini ◽  
Yolanda Paim Arruda Trevisan ◽  
Edson Moleta Colodel ◽  
...  
Keyword(s):  
Respiratory Tract ◽  
Molecular Diagnosis ◽  
Lower Respiratory Tract ◽  
Respiratory Tract Infections ◽  
Correct Identification ◽  
Lower Respiratory Tract Infections ◽  
Gram Negative ◽  
Mucosal Surfaces ◽  
Tract Infections ◽  
Veterinary Hospital

Abstract Neisseria sp. is a Gram-negative diplococcus bacterium usually present on the mucosal surfaces of animals without causing an obvious pathology. The objective of this study was to report the isolation of Neisseria sp. from severe cases of pyogranulomatous pneumonia with the formation of a Splendore-Hoeppli structure in two cats treated at a veterinary hospital. This paper suggests that the Neisseria genus members may be involved in lower respiratory tract infections in cats, with the molecular diagnosis being a necessary method for the correct identification of this bacteria in animals.

scholarly journals Antibiotic Susceptibility Profiling of Gram-Negative Bacteria Causing Upper Respiratory Tract Infections in Hyderabad, Sindh

2020 ◽  
Vol 1 (1) ◽  
pp. 12-15
Author(s):  
Ghulam Maka ◽  
Samreen Shah ◽  
Shaista Bano ◽  
Sarfraz Ali Tunio
Keyword(s):  
Respiratory Tract ◽  
Antibiotic Susceptibility ◽  
Respiratory Tract Infections ◽  
Pathogenic Bacteria ◽  
Diffusion Method ◽  
Upper Respiratory Tract ◽  
Isolation And Identification ◽  
Gram Negative ◽  
Upper Respiratory ◽  
Tract Infections

Respiratory tract infections (RTIs) are important clinical problems and among the commonest infectious diseases throughout the world. Several factors including gender, age and season have been shown to influence the prevalence rates of RTIs. The current study aimed to isolate and identify bacteria causing of upper respiratory tract (URT) infections and to determine the antibiotic susceptibility patterns of the isolated bacteria. A total of 201 sputum and swab samples were collected from patients from August 2015 to March 2016 and investigated for Gram-negative pathogenic bacteria. The antibiotic sensitivity of isolated bacteria was performed using Kirby Bauer Disc diffusion method. Isolation and identification of the bacteria were carried out using conventional methods including microscopic, cultural and biochemical testing. Out of 201 samples, 29.85% (n=60) yielded bacterial growth in which 20.9% (n=42) belonged to male while 8.96% (n=18) were from female patients. Among the isolates, Pseudomonas aeruginosa was the most frequent bacteria accounting 48.33% (n=29), followed by Klebsiella pneumoniae 45% (n=27) and E. coli 6.67% (n=04). The data of antibiotic susceptibility profiling demonstrated that Cefoperazone sulbactam, Meropenem, Piperacillin Tazobactam and Amikacin were highly effective against all isolated bacteria. However, Ampicillin, Cephradine, Ofloxacin and Co-trimoxazole were found the least effective antibiotics against all isolated bacteria. In summary, an increasing trend in the resistance against antibiotics which are more frequently prescribed, such as Cephradine, Ampicillin and Co-trimoxazole was observed. Therefore, a continuous surveillance of antibiotic resistance trends of pathogens is needed to ensure appropriate recommendations for the treatment of the URTIs.

scholarly journals 1587. Activity of Ceftolozane/Tazobactam against Gram-Negative Isolates from Lower Respiratory Tract Infections – SMART United States 2018

2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S790-S791
Author(s):  
Sibylle Lob ◽  
Meredith Hackel ◽  
Daryl DePestel ◽  
Katherine Young ◽  
Mary Motyl ◽  
...  
Keyword(s):  
United States ◽  
Respiratory Tract ◽  
Lower Respiratory Tract ◽  
Respiratory Tract Infections ◽  
The United States ◽  
Lower Respiratory Tract Infections ◽  
Independent Contractor ◽  
Gram Negative ◽  
The Us ◽  
Tract Infections

Abstract Background Ceftolozane/tazobactam (C/T) is an antipseudomonal cephalosporin combined with a β-lactamase inhibitor. C/T has been approved by the FDA and EMA for complicated urinary tract infections, complicated intraabdominal infections, and hospital-acquired and ventilator-associated bacterial pneumonia. Using isolates collected in the United States as part of the global SMART surveillance program, we evaluated the activity of C/T and comparators against gram-negative pathogens collected from patients with lower respiratory tract infections (LRTI). Methods In 2018, 24 hospitals in the US each collected up to 100 consecutive aerobic or facultative gram-negative bacilli (GNB) from LRTI for a total of 1773 isolates. MICs were determined using CLSI broth microdilution and breakpoints. C/T-nonsusceptible (NS) Enterobacterales and P. aeruginosa isolates were screened by PCR and sequencing for genes encoding β-lactamases. Results The 3 most common species collected from LRTI were P. aeruginosa (35.0% of all collected GNB), K. pneumoniae (10.4%), and E. coli (9.6%). Enterobacterales and P. aeruginosa combined comprised 86.3% of all collected LRTI GNB. The activity of C/T and comparators against GNB from LRTI is shown in the table. C/T was active against 93% of Enterobacterales isolates from LRTI (activity only exceeded by meropenem and amikacin), as well as against 97% of P. aeruginosa and 94% of all Enterobacterales and P. aeruginosa combined (activity only exceeded by amikacin). C/T maintained activity against 69-83% of β-lactam-NS subsets of Enterobacterales and P. aeruginosa combined. Among 67 molecularly characterized C/T-NS Enterobacterales isolates, 19.4% carried KPC, 1.5% acquired AmpC, and 16.4% only extended-spectrum β-lactamases. No acquired β-lactamases were detected in the remaining 62.7% of isolates, of which 92.9% were species with intrinsic AmpC. Among 21 molecularly characterized C/T-NS P. aeruginosa, one isolate carried an IMP-type metallo-β-lactamase, and in the remaining isolates no acquired β-lactamases were detected. Table Conclusion With its broad coverage of Enterobacterales and P. aeruginosa, C/T can provide an important empiric therapy option for patients with LRTI in the US. Disclosures Sibylle Lob, PhD, IHMA (Employee)Pfizer, Inc. (Consultant) Daryl DePestel, PharmD, BCPS-ID, Merck & Co, Inc (Employee) Katherine Young, MS, Merck & Co., Inc. (Employee, Shareholder)Merck & Co., Inc. (Employee, Shareholder) Mary Motyl, PhD, Merck & Co, Inc (Employee, Shareholder) Daniel F. Sahm, PhD, IHMA (Employee)Pfizer, Inc. (Consultant)Shionogi & Co., Ltd. (Independent Contractor)

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