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Author Risto Vuento

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Fungemia and Other Fungal Infections Associated with Use of Saccharomyces boulardii Probiotic Supplements.

Juha Rannikko, Ville Holmberg, Matti Karppelin, Pertti Arvola, Reetta Huttunen, Eero Mattila, Niina Kerttula, Teija Puhto, Ülle Tamm, Irma Koivula, Risto Vuento, Jaana Syrjänen, Ulla Hohenthal,

Emerg Infect Dis (Emerging infectious diseases)
[2021, 27(8):]

Cited: 0 times

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Healthcare-associated blood stream infections in hematological patients in Finland during the years 2006-2016.

Emilia Åttman, Jaana Syrjänen, Outi Lyytikäinen, Jukka Ollgren, Marjatta Sinisalo, Risto Vuento, Erja Mattila, Reetta Huttunen,

<h4>Objectives</h4>The aim was to identify the clinical characteristics, outcome, and antimicrobial susceptibility of healthcare-associated bloodstream infections (BSIs) in hematological patients.<h4>Methods</h4>This retrospectively collected laboratory-based surveillance data include 3404 healthcare-associated BSIs in 2296 patients with a hematological malignancy in hospitals participating in the Finnish Hospital Infection Program from January 1, 2006, to ... Read more >>

Eur J Haematol (European journal of haematology)
[2021, :]

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Primary HPV screening for cervical cancer: Results after two screening rounds in a regional screening program in Finland.

Olga Veijalainen, Saara Kares, Laura Kotaniemi-Talonen, Paula Kujala, Risto Vuento, Tiina Luukkaala, Ivana Kholová, Johanna Mäenpää,

<h4>Introduction</h4>Since 2012, cervical cancer screening has been conducted with a primary high-risk human papillomavirus (hrHPV) test and conventional cytology triage in the city of Tampere, Finland. The women who were screened with the hrHPV test in 2012 were invited to participate in the second screening round in 2017. The aim ... Read more >>

Acta Obstet Gynecol Scand (Acta obstetricia et gynecologica Scandinavica)
[2021, 100(3):403-409]

Cited: 2 times

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Molecular epidemiology of carbapenemase-producing Enterobacterales in Finland, 2012-2018.

Kati Räisänen, Outi Lyytikäinen, Jari Kauranen, Eveliina Tarkka, Benita Forsblom-Helander, Juha O Grönroos, Risto Vuento, Dinah Arifulla, Emmi Sarvikivi, Saija Toura, Jari Jalava,

Carbapenemase-producing Enterobacterales (CPE) pose an increasing threat to patient safety and healthcare systems globally. We present molecular epidemiology of CPE in Finland during 2012-2018 with detailed characteristics of CPE strains causing clusters during the same time period. All Finnish clinical microbiology laboratories send Enterobacterales isolates with reduced susceptibility to carbapenems ... Read more >>

Eur J Clin Microbiol Infect Dis (European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology)
[2020, 39(9):1651-1656]

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Evaluation of a semi-automated Seegene PCR workflow with MTB, MDR, and NTM detection for rapid screening of tuberculosis in a low-prevalence setting.

Bruno Vincent Luukinen, Risto Vuento, Jari Juhani Hirvonen,

In areas of low tuberculosis (TB) prevalence, laboratory diagnosis of TB may essentially cover non-tuberculous mycobacteria (NTM) in addition to Mycobacterium tuberculosis (MTB). In this study, a semi-automated PCR workflow distinguishing MTB and NTM (Anyplex™ MTB/NTMe, Seegene) and subsequently detecting MTB isoniazid/rifampicin resistance (Allplex™ MTB/MDRe, Seegene) was evaluated for replacing ... Read more >>

APMIS (APMIS : acta pathologica, microbiologica, et immunologica Scandinavica)
[2020, 128(5):406-413]

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Differential mobility spectrometry classification of bacteria.

Lauri Hokkinen, Artturi Kesti, Jaakko Lepomäki, Osmo Anttalainen, Anton Kontunen, Markus Karjalainen, Janne Aittoniemi, Risto Vuento, Terho Lehtimäki, Niku Oksala, Antti Roine,

<b>Aim:</b> Rapid identification of bacteria would facilitate timely initiation of therapy and improve cost-effectiveness of treatment. Traditional methods (culture, PCR) require reagents, consumables and hours to days to complete the identification. In this study, we examined whether differential mobility spectrometry could classify most common bacterial species, genera and between Gram ... Read more >>

Future Microbiol (Future microbiology)
[2020, 15:233-240]

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HIGH-RISK HPV testing as the primary screening method in an organized regional screening program for cervical cancer: the value of HPV16 and HPV18 genotyping?

Saara Kares, Olga Veijalainen, Ivana Kholová, Mika Tirkkonen, Risto Vuento, Heini Huhtala, Veronica Tuimala, Johanna Mäenpää, Paula Kujala,

Since 2012, testing high-risk (HR)HPV has been used as the primary screening test for women ≥35 years attending the organized cervical cancer screening program in the city of Tampere. We evaluated the contribution of HPV16/18 genotyping. Data from 2012 and 2013, and the follow-up samples in 2013 and 2014, respectively, were ... Read more >>

APMIS (APMIS : acta pathologica, microbiologica, et immunologica Scandinavica)
[2019, 127(11):710-716]

Cited: 2 times

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Tracing local and regional clusters of carbapenemase-producing Klebsiella pneumoniae ST512 with whole genome sequencing, Finland, 2013 to 2018.

Janko van Beek, Kati Räisänen, Markku Broas, Jari Kauranen, Arja Kähkölä, Janne Laine, Eeva Mustonen, Tuija Nurkkala, Teija Puhto, Jaana Sinkkonen, Senja Torvinen, Tarja Vornanen, Risto Vuento, Jari Jalava, Outi Lyytikäinen,

BackgroundTwo epidemiologically-unrelated clusters of Klebsiella pneumoniae carbapenemase (KPC)-producing K. pneumoniae were detected among several healthcare facilities (HCF) in Finland by routine surveillance using whole genome sequencing (WGS).AimThe objective was to investigate transmission chains to stop further spread of the responsible strain.MethodsIn this observational retrospective study, cases were defined as patients ... Read more >>

Euro Surveill (Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin)
[2019, 24(38):]

Cited: 4 times

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Evaluation of two tuberculosis PCR assays for routine use in a clinical setting of low population and low tuberculosis prevalence.

Bruno Vincent Luukinen, Risto Vuento, Jari Juhani Hirvonen,

Today, there are numerous different molecular diagnostic assays for the detection of tuberculosis (TB), allowing the optimization of rapid detection of TB according to the clinical need. In this study, two high-throughput TB PCR assays with combined antimicrobial resistance detection, Anyplex™ II MTB/MDR (Seegene) and RealTime MTB + RealTime MTB RIF/INH Resistance ... Read more >>

APMIS (APMIS : acta pathologica, microbiologica, et immunologica Scandinavica)
[2019, 127(6):462-467]

Cited: 1 time

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Implementation of HPV-based cervical cancer screening in an organised regional screening programme: 3 years of experience.

Olga Veijalainen, Saara Kares, Paula Kujala, Risto Vuento, Veronika Osuala, Mika Tirkkonen, Tiina Luukkaala, Ivana Kholová, Johanna Mäenpää,

<h4>Objective</h4>The aim of this study was to evaluate the performance of human papillomavirus (HPV)-based screening in the framework of an organised cervical cancer screening programme.<h4>Methods</h4>A total of 46 708 women aged 35-60 years invited to the regional cervical cancer screening programme from 1 January 2012, to 31 December 2014, were enrolled. Overall, ... Read more >>

Cytopathology (Cytopathology : official journal of the British Society for Clinical Cytology)
[2019, 30(2):150-156]

Cited: 4 times

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In vitro detection of common rhinosinusitis bacteria by the eNose utilising differential mobility spectrometry.

Jussi Virtanen, Lauri Hokkinen, Markus Karjalainen, Anton Kontunen, Risto Vuento, Jura Numminen, Markus Rautiainen, Niku Oksala, Antti Roine, Ilkka Kivekäs,

Acute rhinosinusitis (ARS) is a sudden, symptomatic inflammation of the nasal and paranasal mucosa. It is usually caused by respiratory virus infection, but bacteria complicate for a small number of ARS patients. The differential diagnostics between viral and bacterial pathogens is difficult and currently no rapid methodology exists, so antibiotics ... Read more >>

Eur Arch Otorhinolaryngol (European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery)
[2018, 275(9):2273-2279]

Cited: 2 times

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Electronic Nose in the Detection of Wound Infection Bacteria from Bacterial Cultures: A Proof-of-Principle Study.

Taavi Saviauk, Juha P Kiiski, Maarit K Nieminen, Nelly N Tamminen, Antti N Roine, Pekka S Kumpulainen, Lauri J Hokkinen, Markus T Karjalainen, Risto E Vuento, Janne J Aittoniemi, Terho J Lehtimäki, Niku K Oksala,

BACKGROUND:Soft tissue infections, including postoperative wound infections, result in a significant burden for modern society. Rapid diagnosis of wound infections is based on bacterial stains, cultures, and polymerase chain reaction assays, and the results are available earliest after several hours, but more often not until days after. Therefore, antibiotic treatment ... Read more >>

Eur Surg Res (European surgical research. Europaische chirurgische Forschung. Recherches chirurgicales europeennes)
[2018, 59(1-2):1-11]

Cited: 7 times

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Spa type distribution in MRSA and MSSA bacteremias and association of spa clonal complexes with the clinical characteristics of bacteremia.

Elina Jokinen, Laura Lindholm, Reetta Huttunen, Heini Huhtala, Risto Vuento, Jaana Vuopio, Jaana Syrjänen,

The genetic distribution of invasive methicillin-susceptible (MSSA) and resistant S. aureus (MRSA) strains has to be addressed in order to target infection control strategies. A large MRSA epidemic caused by a certain MRSA strain (spa type 067) broke out in 2001 in our health district. We wanted to investigate the ... Read more >>

Eur J Clin Microbiol Infect Dis (European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology)
[2018, 37(5):937-943]

Cited: 2 times

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Trends in incidence and resistance patterns of Staphylococcus aureus bacteremia.

Elina Jokinen, Janne Laine, Reetta Huttunen, Outi Lyytikäinen, Risto Vuento, Jaana Vuopio, Jaana Syrjänen,

BACKGROUND:Staphylococcus aureus bacteremia (SAB) causes a significant burden on the population. Several infection control measures have been implemented in Pirkanmaa county to combat a local epidemic with methicillin-resistant Staphylococcus aureus (MRSA). We aimed to study the epidemiology of SAB and antibiotic resistance of S. aureus and the possible influence of ... Read more >>

Infect Dis (Lond) (Infectious diseases (London, England))
[2018, 50(1):52-58]

Cited: 7 times

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A Serratia marcescens outbreak in a neonatal intensive care unit was successfully managed by rapid hospital hygiene interventions and screening.

Emilia Åttman, Päivi Korhonen, Outi Tammela, Risto Vuento, Janne Aittoniemi, Jaana Syrjänen, Erja Mattila, Monica Österblad, Reetta Huttunen,

AIM:Serratia marcescens is a rare, but important, pathogen in hospital-acquired infections, especially in neonatal units. Outbreaks may cause significant mortality among neonates. This study describes how an outbreak of S. marcescens was handled in a neonatal intensive care unit in Finland in June 2015. METHODS:Tampere University Hospital is the only ... Read more >>

Acta Paediatr (Acta paediatrica (Oslo, Norway : 1992))
[2018, 107(3):425-429]

Cited: 3 times

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Comparison of outcome and clinical characteristics of bacteremia caused by methicillin-resistant, penicillin-resistant and penicillin-susceptible Staphylococcus aureus strains.

Elina Jokinen, Janne Laine, Reetta Huttunen, Pekka Rahikka, Heini Huhtala, Risto Vuento, Jaana Vuopio, Jaana Syrjänen,

<h4>Background</h4>The aim of this study was to assess the association of methicillin resistance and penicillinase production with clinical characteristics and outcome of Staphylococcus aureus bacteremia.<h4>Methods</h4>For 126 patients with methicillin-resistant Staphylococcus aureus (MRSA) bacteremia, 378 age- and gender-matched controls with methicillin-susceptible Staphylococcus aureus (MSSA) bacteremia were selected. Of controls, 126 had ... Read more >>

Infect Dis (Lond) (Infectious diseases (London, England))
[2017, 49(7):493-500]

Cited: 7 times

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Human papillomavirus test with cytology triage in organized screening for cervical cancer.

Olga Veijalainen, Saara Kares, Paula Kujala, Mika Tirkkonen, Risto Vuento, Ivana Kholová, Tiina Luukkaala, Veronika Osuala, Johanna Mäenpää,

<h4>Introduction</h4>In randomized studies, testing for high-risk (HR) human papillomavirus (hrHPV) has been more sensitive than conventional cytology in detecting cervical intraepithelial neoplasia (CIN). The aim of this study was to evaluate the performance of HPV testing in the setting of an organized routine screening program.<h4>Material and methods</h4>Since 2012, 35- to ... Read more >>

Acta Obstet Gynecol Scand (Acta obstetricia et gynecologica Scandinavica)
[2016, 95(11):1220-1227]

Cited: 4 times

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Etiology, clinical course and outcome of healthcare-associated bloodstream infections in patients with hematological malignancies: a retrospective study of 350 patients in a Finnish tertiary care hospital.

Emilia Åttman, Janne Aittoniemi, Marjatta Sinisalo, Risto Vuento, Outi Lyytikäinen, Tommi Kärki, Jaana Syrjänen, Reetta Huttunen,

This retrospectively collected laboratory-based surveillance data includes 575 healthcare-associated bloodstream infections (BSIs) in 350 patients with hematological malignancy in Tampere University Hospital, Finland, during 1999-2001 and 2005-2010. The most common underlying diseases were acute myelogenous leukemia (n=283, 49%), followed by myeloma (n=87, 15%) and acute lymphocytic leukemia (n=76, 13%). The ... Read more >>

Leuk Lymphoma (Leukemia & lymphoma)
[2015, 56(12):3370-3377]

Cited: 12 times

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Use of an automated PCR assay, the GenomEra S. pneumoniae, for rapid detection of Streptococcus pneumoniae in blood cultures.

Jari J Hirvonen, Tapio Seiskari, Inka Harju, Kaisu Rantakokko-Jalava, Risto Vuento, Janne Aittoniemi,

<h4>Background</h4>Streptococcus pneumoniae is recognized as a major cause of pneumonia, meningitis, and bacteremia. Since the mortality rate for pneumococcal bacteremia remains high, the reliable detection of the bacterium in blood samples is important. In this study, the performance of a new automated PCR assay, the GenomEra(™) S. pneumoniae, for direct ... Read more >>

Infect Dis (Lond) (Infectious diseases (London, England))
[2015, 47(11):796-800]

Cited: 0 times

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Combined interventions are effective in MRSA control.

Elina Jokinen, Janne Laine, Reetta Huttunen, Pertti Arvola, Jaana Vuopio, Laura Lindholm, Risto Vuento, Jaana Syrjänen,

<h4>Background</h4>A large healthcare-associated epidemic mainly caused by one methicillin-resistant Staphylococcus aureus (MRSA) strain broke out in Pirkanmaa County, Finland, in 2001. This study describes the impact of infection control and screening practices on the epidemic.<h4>Methods</h4>The number of hospital-acquired (HA)-MRSA findings obtained from clinical and screening samples during the epidemic was ... Read more >>

Infect Dis (Lond) (Infectious diseases (London, England))
[2015, 47(11):801-807]

Cited: 6 times

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Oral bacterial DNA findings in pericardial fluid.

Anne-Mari Louhelainen, Joonas Aho, Sari Tuomisto, Janne Aittoniemi, Risto Vuento, Pekka J Karhunen, Tanja Pessi,

<h4>Background</h4>We recently reported that large amounts of oral bacterial DNA can be found in thrombus aspirates of myocardial infarction patients. Some case reports describe bacterial findings in pericardial fluid, mostly done with conventional culturing and a few with PCR; in purulent pericarditis, nevertheless, bacterial PCR has not been used as ... Read more >>

J Oral Microbiol (Journal of oral microbiology)
[2014, 6:25835]

Cited: 6 times

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An outbreak of human metapneumovirus in a rehabilitation center for alcoholics in Tampere, Finland.

Outi Laine, Janne Laine, Petrus Säilä, Heini Huhtala, Jaana Syrjänen, Tytti Vuorinen, Risto Vuento,

Reports of respiratory tract infections in a rehabilitation center for alcoholics triggered the epidemiological investigations in Tampere, Finland. Twenty-nine out of 40 residents (attack rate 73%) and four members of staff fulfilled the case criteria: cough; worsening of dyspnea; or rhinitis with or without fever. Ten cases were hospitalized, one ... Read more >>

Infect Dis (Lond) (Infectious diseases (London, England))
[2015, 47(7):499-503]

Cited: 1 time

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Rapid and accurate detection of urinary pathogens by mobile IMS-based electronic nose: a proof-of-principle study.

Antti Roine, Taavi Saviauk, Pekka Kumpulainen, Markus Karjalainen, Antti Tuokko, Janne Aittoniemi, Risto Vuento, Jukka Lekkala, Terho Lehtimäki, Teuvo L Tammela, Niku K J Oksala,

<h4>Unlabelled</h4>Urinary tract infection (UTI) is a common disease with significant morbidity and economic burden, accounting for a significant part of the workload in clinical microbiology laboratories. Current clinical chemisty point-of-care diagnostics rely on imperfect dipstick analysis which only provides indirect and insensitive evidence of urinary bacterial pathogens. An electronic nose ... Read more >>

PLoS One (PloS one)
[2014, 9(12):e114279]

Cited: 17 times

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Changes in gut bacterial populations and their translocation into liver and ascites in alcoholic liver cirrhotics.

Sari Tuomisto, Tanja Pessi, Pekka Collin, Risto Vuento, Janne Aittoniemi, Pekka J Karhunen,

<h4>Background</h4>The liver is the first line of defence against continuously occurring influx of microbial-derived products and bacteria from the gut. Intestinal bacteria have been implicated in the pathogenesis of alcoholic liver cirrhosis. Escape of intestinal bacteria into the ascites is involved in the pathogenesis of spontaneous bacterial peritonitis, which is ... Read more >>

BMC Gastroenterol (BMC gastroenterology)
[2014, 14:40]

Cited: 48 times

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Current concepts in the diagnosis of blood stream infections. Are novel molecular methods useful in clinical practice?

Reetta Huttunen, Jaana Syrjänen, Risto Vuento, Janne Aittoniemi,

The decision on the right empirical treatment in bacteremia places particular demands on the clinician. As long as no microbiological diagnosis can be immediately drawn, the clinical diagnosis together with knowledge of local antimicrobial resistance must determine the antimicrobial choice. The use of several amplification, hybridization, and mass spectrometry methods ... Read more >>

Int J Infect Dis (International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases)
[2013, 17(11):e934-8]

Cited: 7 times

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