Nenad Pandak

Dr. Nenad Pandak

orcid

Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
1 January 2021 in International Journal of Infectious Diseases
Verified
Journal Article
Open access
FKFaryal khamis
Faryal khamis
HNHanan Al Naabi
Hanan Al Naabi
ALAdil Al Lawati
Adil Al Lawati
ZAZaiyana Ambusaidi
Zaiyana Ambusaidi
MSMariam Al Sharji
Mariam Al Sharji
IAIbrahim Al-Zakwani
Ibrahim Al-Zakwani
To evaluate the therapeutic effectiveness of favipiravir combined with inhaled interferon beta-1b in adult patients hospitalized with moderate to severe COVID-19 pneumonia. A randomized, open-label controlled trial of oral favipiravir in adults hospitalized with moderate to severe COVID-19 pneumonia from June 22nd 2020 to August 13th 2020 was conducted. Patients were randomly assigned to receive either a combination of favipiravir with interferon beta-1b by inhalation aerosol or hydroxychloroquine (HCQ). The outcome endpoints included improvement in inflammatory markers, lower length of hospital stay (LOS), discharges and lower overall 14-day mortality. A total of 89 patients underwent randomization with 49% (n = 44) assigned to favipiravir and 51% (n = 45) assigned HCQ. The overall mean age was 55 ± 14 years and 58% (n = 52) were males. There were no significant differences in the inflammatory biomarkers at hospital discharge between the two groups; C-reactive protein (p = 0.413), ferritin (p = 0.968), lactate dehydrogenase (p = 0.259) and interleukin 6 (p = 0.410). There were also no significant differences between the two groups with regards to the overall LOS (7 vs 7 days; p = 0.948), transfers to the ICU (18.2% vs 17.8%; p = 0.960), discharges (65.9% vs 68.9%; p = 0.764) and overall mortality (11.4% vs 13.3%; p = 0.778). No differences in clinical outcomes were found between favipiravir plus inhaled interferon beta-1b and hydroxychloroquine in adults hospitalized with moderate to severe COVID-19 pneumonia.

19 October 2021 in Journal of Fungi
Verified
Journal Article
Open access
PDF file
NPNirav Pandya
Nirav Pandya
YCYasemin Cag
Yasemin Cag
NPNenad Pandak
Nenad Pandak
APAbdullah Umut Pekok
Abdullah Umut Pekok
APAruna Poojary
Aruna Poojary
HEHakan Erdem
Hakan Erdem
Background:Candida auris has emerged globally as a multi-drug resistant yeast and is commonly associated with nosocomial outbreaks in ICUs. Methods: We conducted a retrospective observational multicentre study to determine the epidemiology of C. auris infections, its management strategies, patient outcomes, and infection prevention and control practices across 10 centres from five countries. Results: Significant risk factors for C. auris infection include the age group of 61–70 years (39%), recent history of ICU admission (63%), diabetes (63%), renal failure (52%), presence of CVC (91%) and previous history of antibiotic treatment (96%). C. auris was commonly isolated from blood (76%). Echinocandins were the most sensitive drugs. Most common antifungals used for treatment were caspofungin (40%), anidulafungin (28%) and micafungin (15%). The median duration of treatment was 20 days. Source removal was conductedin 74% patients. All-cause crude mortality rate after 30 days was 37%. Antifungal therapy was associated with a reduction in mortality (OR:0.27) and so was source removal (OR:0.74). Contact isolation precautions were followed in 87% patients. Conclusions:C. auris infection carries a high risk for associated mortality. The organism is mainly resistant to most azoles and even amphotericin-B. Targeted antifungal therapy, mainly an echinocandin, and source control are the prominent therapeutic approaches.

10 December 2013 in Parasites & Vectors
Verified
Journal Article
Open access
PDF file
ETEllen Tijsse-Klasen
Ellen Tijsse-Klasen
HSHein Sprong
Hein Sprong
NPNenad Pandak
Nenad Pandak
Lyme borreliosis is the most prevalent tick-borne disease in Europe. Ixodes ricinus also carries other pathogenic bacteria, but corresponding human diseases are rarely reported. Here, we compared the exposure to Rickettsia helvetica and Rickettsia monacensis with that to Lyme borreliosis spirochetes. We assumed that their exposure corresponds to their infection rate in questing I. ricinus.

1 June 2021 in Journal of Infection and Public Health
Verified
Journal Article
Open access
FKFaryal khamis
Faryal khamis
ZMZiad Memish
Ziad Memish
MBMaher Al Bahrani
Maher Al Bahrani
SDSamata Al Dowaiki
Samata Al Dowaiki
NPNenad Pandak
Nenad Pandak
IAIbrahim Al-Zakwani
Ibrahim Al-Zakwani
The severity and mortality from COVID-19 infection vary among populations. The aim of this study was to determine the prevalence and predictors of mortality among patients hospitalized with COVID-19 infection in a tertiary care hospital in Oman. We conducted a retrospective study using database that included: demographic, clinical characteristics, laboratory parameters, medications and clinical outcomes of all patients hospitalized in Royal Hospital, Muscat, Oman, between March 12, 2020 and December 1st 2020. Univariate and multivariate logistic regression was performed to investigate the relationship between each variable and the risk of death of COVID-19 infected patients. In total,1002 patients with COVID-19 infection with mean age of the cohort was 54±16 years (65% (n=650) male) were included, with an overall and intensive care unit (ICU) mortalities of 26% (n=257) and 42% (n=199/473), respectively. The prevalence of ICU admission was 47% (n=473) and the need for mechanical ventilation was 41% (n=413). The overall length of stay in the ICU was 13 (9-21) days. Adjusting for other factors in the model, the multivariable logistic regression demonstrated that in-hospital mortality in admitted COVID-19 patients was associated with old age (p<0.001), heart diseases (adjusted odds ratio (aOR), 1.84; 95% confidence interval (CI): 1.11-3.03; p=0.018), liver diseases (aOR, 4.48; 95% CI: 1.04-19.3; p=0.044), those with higher ferritin levels (aOR, 1.00; 95% CI: 1.00-1.00; p=0.006), acute respiratory distress syndrome (ARDS) (aOR, 3.20; 95% CI: 1.65-6.18; p=0.001), sepsis (aOR, 1.77; 95% CI: 1.12-2.80; p=0.022), and those that had ICU admission (aOR, 2.22; 95% CI: 1.12-4.38; p=0.022). In this cohort, mortality in hospitalized COVID-19 patients was high and was associated with advanced age, heart diseases, liver disease, high ferritin, ARDS, sepsis and ICU admission. These high-risk groups should be prioritized for COVID-19 vaccinations.

22 January 2013 in Parasites & Vectors
Verified
Journal Article
Open access
PDF file
ETEllen Tijsse-Klasen
Ellen Tijsse-Klasen
NPNenad Pandak
Nenad Pandak
PHPaul Hengeveld
Paul Hengeveld
KTKatsuhisa Takumi
Katsuhisa Takumi
MKMarion P.G. Koopmans
Marion P.G. Koopmans
HSHein Sprong
Hein Sprong
Background Lyme borreliosis is a tick-borne disease caused by Borrelia burgdorferi sensu lato. The variety of characteristic and non-specific clinical manifestations is partially explained by its genetic diversity. We investigated the ability of B . burgdorferi sl isolates to cause erythema migrans. Methods The genetic constellation of isolates from ticks was compared to isolates found in erythema migrans. PCR and sequence analysis was performed on the plasmid-encoded ospC and the chromosomal 5S-23S rDNA spacer region (IGS). Results Seven different B . burgdorferi sl genospecies were identified in 152 borrelia isolates from ticks and erythema migrans biopsies. B afzelii (51%) and B . garinii (27%) were the most common in ticks. From the 44 sequences obtained from erythema migrans samples 42 were B . afzelii , one B . garinii and one B . bavariensis . Significant associations with erythema migrans formation were found for four IGS and two ospC types. Five from 45 ospC types were associated with more than one genospecies. Conclusions B . burgdorferi sl isolates differ in their propensity to cause erythema migrans. These differences were also found within genospecies. In other words, although B . afzelii was mostly associated with erythema migrans, some B . afzelii isolates had a low ability to cause erythema migrans. Our data further support the occurrence of plasmid exchange between borrelia genospecies under natural conditions.

19 March 2019 in BMC Infectious Diseases
Verified
Journal Article
Open access
PDF file
Lorena JemeršićLorena Jemeršić
Lorena Jemeršić
Jelena PrpićJelena Prpić
Jelena Prpić
Dragan BrnićDragan Brnić
Dragan Brnić
TKTomislav Keros
Tomislav Keros
NPNenad Pandak
Nenad Pandak
OROktavija Đaković Rode
Oktavija Đaković Rode
To fulfill epidemiological data and investigate possible interspecies transmission, this study shall attempt to sequence representative HEV strains of human, swine and wild boar origin collected from 2010 to 2017 in Croatia. In total, 174 anti-HEV antibody positive human sera samples; 1419 blood or faeces samples of swine, as well as 720 tissue and/or blood samples of wild boar originating from different counties (18 in total) in Croatia were tested for the presence of HEV RNA. HEV RNA was detected in 26 human sera samples (14.9%; 95% CI 10.4–21.0%). HEV RNA was detected in 216 tested swine (15.2%; 95% CI 13.5–17.1%), regardless of age, farm breeding system or geographical origin. Viral RNA was also detectable in faeces samples which prove that swine actively participate in shedding HEV into the environment. Of the total of 720 tested wild boar samples, 83 were HEV RNA positive (11.5, 95% CI 9.4–14.1%) originating from six counties. According to the sequence analysis all strains have shown to be members of Orthohepevirus A genotype HEV-3, regardless of host. The genotyping results confirm grouping of sequences into four subtypes of HEV strains of which subtypes 3a and 3c belong to the general cluster 3abchij, and were predominately detected during the study, while subtypes 3e and 3f fall within cluster 3efg. Strains within subtypes 3a and 3e were found in humans, swine and wild boars; subtype 3c strains were derived from humans and swine, whereas subtype 3f strains were found only in humans. Strains belonging to subtypes 3a and 3c were derived during the entire investigated period and may be considered endemic in Croatia, whereas strains within subtypes 3e and 3f were detected sporadically indicating the possibility of newly imported infections. All detected strains show to be genetically highly related to strains found in humans and/or animals from other European Countries, indicating that trade of live animals or wild boar movement increases the risk of HEV infection spread. Furthermore, homologous strains found in different investigated species within this study indicate interspecies transmission of HEV and/or an existence of an accessible mutual source of infection.