Volkan Hanci

Prof. Dr. Volkan Hanci

orcid

Research Focus & Metrics

Academic Career Length

23Years (2004-Present)

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

Representative Publications

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1 February 2019 in The Lancet Respiratory Medicine
Verified
Journal Article
Closed access
EKEva Kirmeier
Eva Kirmeier
LELars I Eriksson
Lars I Eriksson
HLHeidrun Lewald
Heidrun Lewald
MFMalin Jonsson Fagerlund
Malin Jonsson Fagerlund
AHAndreas Hoeft
Andreas Hoeft
DZDarja Zupanĕiĕ
Darja Zupanĕiĕ

16 April 2018 in Critical Care
Verified
Journal Article
Open access
PDF file
SGSepsis Study Group
Sepsis Study Group
NBNur Baykara
Nur Baykara
EAEMİN HALİS Akalin
EMİN HALİS Akalin
MAMustafa Kemal Arslantaş
Mustafa Kemal Arslantaş
VHVolkan Hanci
Volkan Hanci
NÜNecmettin Ünal
Necmettin Ünal
The prevalence and mortality of sepsis are largely unknown in Turkey, a country with high antibiotic resistance. A national, multicenter, point-prevalence study was conducted to determine the prevalence, causative microorganisms, and outcome of sepsis in intensive care units (ICUs) in Turkey. A total of 132 ICUs from 94 hospitals participated. All patients (aged > 18 years) present at the participating ICUs or admitted for any duration within a 24-h period (08:00 on January 27, 2016 to 08:00 on January 28, 2016) were included. The presence of systemic inflammatory response syndrome (SIRS), severe sepsis, and septic shock were assessed and documented based on the consensus criteria of the American College of Chest Physicians and Society of Critical Care Medicine (SEPSIS-I) in infected patients. Patients with septic shock were also assessed using the SEPSIS-III definitions. Data regarding demographics, illness severity, comorbidities, microbiology, therapies, length of stay, and outcomes (dead/alive during 30 days) were recorded. Of the 1499 patients included in the analysis, 237 (15.8%) had infection without SIRS, 163 (10.8%) had infection with SIRS, 260 (17.3%) had severe sepsis without shock, and 203 (13.5%) had septic shock. The mortality rates were higher in patients with severe sepsis (55.7%) and septic shock (70.4%) than those with infection alone (24.8%) and infection + SIRS (31.2%) (p < 0.001). According to SEPSIS-III, 104 (6.9%) patients had septic shock (mortality rate, 75.9%). The respiratory system (71.6%) was the most common site of infection, and Acinetobacter spp. (33.7%) were the most common isolated pathogen. Approximately, 74.9%, 39.1%, and 26.5% of Acinetobacter, Klebsiella, and Pseudomonas spp. isolates, respectively, were carbapenem-resistant, which was not associated with a higher mortality risk. Age, acute physiology and chronic health evaluation II score at ICU admission, sequential organ failure assessment score on study day, solid organ malignancy, presence of severe sepsis or shock, Candida spp. infection, renal replacement treatment, and a nurse-to-patient ratio of 1:4 (compared with a nurse-to-patient ratio of 1:2) were independent predictors of mortality in infected patients. A high prevalence of sepsis and an unacceptably high mortality rate were observed in Turkish ICUs. Although the prevalence of carbapenem resistance was high in Turkish ICUs, it was not associated with a higher risk for mortality. ClinicalTrials.gov ID NCT03249246 . Date: August 15, 2017. Retrospectively registered.

16 August 2024 in Medicine
Verified
Journal Article
Open access
VHVolkan Hanci
Volkan Hanci
BEBişar Ergün
Bişar Ergün
SGSanser Gul
Sanser Gul
ÖUÖzcan Uzun
Özcan Uzun
IEİsMail Erdemir
İsMail Erdemir
FHFerid Baran Hancı
Ferid Baran Hancı
There is no study that comprehensively evaluates data on the readability and quality of “palliative care” information provided by artificial intelligence (AI) chatbots ChatGPT®, Bard®, Gemini®, Copilot®, Perplexity®. Our study is an observational and cross-sectional original research study. In our study, AI chatbots ChatGPT®, Bard®, Gemini®, Copilot®, and Perplexity® were asked to present the answers of the 100 questions most frequently asked by patients about palliative care. Responses from each 5 AI chatbots were analyzed separately. This study did not involve any human participants. Study results revealed significant differences between the readability assessments of responses from all 5 AI chatbots (P < .05). According to the results of our study, when different readability indexes were evaluated holistically, the readability of AI chatbot responses was evaluated as Bard®, Copilot®, Perplexity®, ChatGPT®, Gemini®, from easy to difficult (P < .05). In our study, the median readability indexes of each of the 5 AI chatbots Bard®, Copilot®, Perplexity®, ChatGPT®, Gemini® responses were compared to the “recommended” 6th grade reading level. According to the results of our study answers of all 5 AI chatbots were compared with the 6th grade reading level, statistically significant differences were observed in the all formulas (P < .001). The answers of all 5 artificial intelligence robots were determined to be at an educational level well above the 6th grade level. The modified DISCERN and Journal of American Medical Association scores was found to be the highest in Perplexity® (P < .001). Gemini® responses were found to have the highest Global Quality Scale score (P < .001). It is emphasized that patient education materials should have a readability level of 6th grade level. Of the 5 AI chatbots whose answers about palliative care were evaluated, Bard®, Copilot®, Perplexity®, ChatGPT®, Gemini®, their current answers were found to be well above the recommended levels in terms of readability of text content. Text content quality assessment scores are also low. Both the quality and readability of texts should be brought to appropriate recommended limits.

1 May 2010 in Urology
Verified
Journal Article
Closed access
BEBulent Erol
Bulent Erol
ATAltug Tuncel
Altug Tuncel
VHVolkan Hanci
Volkan Hanci
HTHusnu Tokgoz
Husnu Tokgoz
AYAbdulkadir Yildiz
Abdulkadir Yildiz
AMAydin Mungan
Aydin Mungan

7 August 2009 in Acta Anaesthesiologica Scandinavica
Verified
Journal Article
Closed access
PDF file
MCM. Can
M. Can
SGS. Gul
S. Gul
SBS. Bektas
S. Bektas
VHVolkan Hanci
Volkan Hanci
SAS. Acikgoz
S. Acikgoz

1 May 2004 in Nutrition
Verified
Journal Article
Closed access
HSHulya Sungurtekin
Hulya Sungurtekin
USUğur Sungurtekin
Uğur Sungurtekin
VHVolkan Hanci
Volkan Hanci
EEErgün Erdem
Ergün Erdem