Dimitri Aristotle Raptis

Dr. Dimitri Aristotle Raptis

orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

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

Representative Publications

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30 June 2023 in Journal of Medical Internet Research
Verified
Journal Article
Open access
HWHarriet Louise Walker
Harriet Louise Walker
SGShahi Ghani
Shahi Ghani
CKChristoph Kuemmerli
Christoph Kuemmerli
CNChristian Andreas Nebiker
Christian Andreas Nebiker
BMBeat Peter Müller
Beat Peter Müller
SSSebastian Manuel Staubli
Sebastian Manuel Staubli
Background: ChatGPT-4 is the latest release of a novel artificial intelligence (AI) chatbot able to answer freely formulated and complex questions. In the near future, ChatGPT could become the new standard for health care professionals and patients to access medical information. However, little is known about the quality of medical information provided by the AI. Objective: We aimed to assess the reliability of medical information provided by ChatGPT. Methods: Medical information provided by ChatGPT-4 on the 5 hepato-pancreatico-biliary (HPB) conditions with the highest global disease burden was measured with the Ensuring Quality Information for Patients (EQIP) tool. The EQIP tool is used to measure the quality of internet-available information and consists of 36 items that are divided into 3 subsections. In addition, 5 guideline recommendations per analyzed condition were rephrased as questions and input to ChatGPT, and agreement between the guidelines and the AI answer was measured by 2 authors independently. All queries were repeated 3 times to measure the internal consistency of ChatGPT. Results: Five conditions were identified (gallstone disease, pancreatitis, liver cirrhosis, pancreatic cancer, and hepatocellular carcinoma). The median EQIP score across all conditions was 16 (IQR 14.5-18) for the total of 36 items. Divided by subsection, median scores for content, identification, and structure data were 10 (IQR 9.5-12.5), 1 (IQR 1-1), and 4 (IQR 4-5), respectively. Agreement between guideline recommendations and answers provided by ChatGPT was 60% (15/25). Interrater agreement as measured by the Fleiss κ was 0.78 (P<.001), indicating substantial agreement. Internal consistency of the answers provided by ChatGPT was 100%. Conclusions: ChatGPT provides medical information of comparable quality to available static internet information. Although currently of limited quality, large language models could become the future standard for patients and health care professionals to gather medical information.

10 September 2020 in BMJ Open
Verified
Journal Article
Open access
PDF file
KFKa Siu Fan
Ka Siu Fan
SGShahi Abdul Ghani
Shahi Abdul Ghani
Nikolaos MachairasNikolaos Machairas
Nikolaos Machairas
LLLorenzo Lenti
Lorenzo Lenti
KFKa Hay Fan
Ka Hay Fan
DRDimitri Aristotle Raptis
Dimitri Aristotle Raptis
Objective: To evaluate the quality of information regarding the prevention and treatment of COVID-19 available to the general public from all countries. Design: Systematic analysis using the ‘Ensuring Quality Information for Patients’ (EQIP) Tool (score 0–36), Journal of American Medical Association ( JAMA ) benchmark (score 0–4) and the DISCERN Tool (score 16–80) to analyse websites containing information targeted at the general public. Data sources: Twelve popular search terms, including ‘Coronavirus’, ‘COVID-19 19’, ‘Wuhan virus’, ‘How to treat coronavirus’ and ‘COVID-19 19 Prevention’ were identified by ‘Google AdWords’ and ‘Google Trends’. Unique links from the first 10 pages for each search term were identified and evaluated on its quality of information. Eligibility criteria for selecting studies: All websites written in the English language, and provides information on prevention or treatment of COVID-19 intended for the general public were considered eligible. Any websites intended for professionals, or specific isolated populations, such as students from one particular school, were excluded, as well as websites with only video content, marketing content, daily caseload update or news dashboard pages with no health information. Results: Of the 1275 identified websites, 321 (25%) were eligible for analysis. The overall EQIP, JAMA and DISCERN scores were 17.8, 2.7 and 38.0, respectively. Websites originated from 34 countries, with the majority from the USA (55%). News Services (50%) and Government/Health Departments (27%) were the most common sources of information and their information quality varied significantly. Majority of websites discuss prevention alone despite popular search trends of COVID-19 treatment. Websites discussing both prevention and treatment (n=73, 23%) score significantly higher across all tools (p<0.001). Conclusion: This comprehensive assessment of online COVID-19 information using EQIP, JAMA and DISCERN Tools indicate that most websites were inadequate. This necessitates improvements in online resources to facilitate public health measures during the pandemic.

7 May 2024 in American Journal of Transplantation
Verified
Journal Article
Open access
DRDimitri Aristotle Raptis
Dimitri Aristotle Raptis
YEYasser Elsheikh
Yasser Elsheikh
YAYasir Alnemary
Yasir Alnemary
KMKris Ann Hervera Marquez
Kris Ann Hervera Marquez
KBKhalid I Bzeizi
Khalid I Bzeizi
SKSami A. Kareem
Sami A. Kareem
Minimally invasive donor hepatectomy is an emerging surgical technique in living donor liver transplantation (LDLT). We examined outcomes across open, laparoscopic, and robotic LDLT using a prospective registry. We analyzed 3,448 cases (1,724 donor-recipient pairs) from Jan 2011 to Mar 2023 (NCT06062706). Among donors, 724 (42%) were female. Adult-to-adult LDLT comprised 1,061 (62%) cases. 646 (37%) of the donors underwent open, 165 (10%) laparoscopic, and 913 (53%) robotic hepatectomies. donor overall morbidity was 4% (35/903) for robotic, 8% (13/165) laparoscopic, and 16% (106/646) open (p<0.001). Pediatric and adult recipient mortality was similar among the three donor hepatectomy approaches; robotic 1.5% and 7.0%, compared to 2.3% and 8.3% laparoscopic and 1.6% and 5.5% for open donor surgery, respectively (p=0.802, p=0.564). pediatric and adult recipient major morbidity after robotic hepatectomy was 15% and 23%, compared to 25% and 44% laparoscopic and 19% and 31% for open surgery, respectively (p=0.033, p<0.001). Graft and recipient 5-year survival was 90% and 93% for pediatric and 79% and 80% for adults, respectively. In conclusion, robotic LDLT was associated with superior outcomes when compared to the laparoscopic and open approaches. Both donors, and for the first time reported, recipients benefitted with lower morbidity rates in robotic surgery, emphasizing its potential in further advancing this field. RAC 2121012 CLINICALTRIALS.GOV: NCT06062706.

4 January 2024 in International Journal of Surgery
Verified
Journal Article
Open access
DBDieter C. Broering
Dieter C. Broering
DRDimitri Aristotle Raptis
Dimitri Aristotle Raptis
YEYasser Elsheikh
Yasser Elsheikh
An abstract is unavailable. This article is available as a PDF only.

9 November 2023 in British Journal of Surgery
Verified
Journal Article
Open access
PDF file
PCPancreasGroup.org Collaborative
PancreasGroup.org Collaborative
GFGiuseppe Kito Fusai
Giuseppe Kito Fusai
DRDimitri Aristotle Raptis
Dimitri Aristotle Raptis
CBClaudio Bassi
Claudio Bassi
MBMarc Besselink
Marc Besselink
CMChenesa Mbanje
Chenesa Mbanje
Background: Pancreatic surgery remains associated with high morbidity rates. Although postoperative mortality appears to have improved with specialization, the outcomes reported in the literature reflect the activity of highly specialized centres. The aim of this study was to evaluate the outcomes following pancreatic surgery worldwide. Methods: This was an international, prospective, multicentre, cross-sectional snapshot study of consecutive patients undergoing pancreatic operations worldwide in a 3-month interval in 2021. The primary outcome was postoperative mortality within 90 days of surgery. Multivariable logistic regression was used to explore relationships with Human Development Index (HDI) and other parameters. Results: A total of 4223 patients from 67 countries were analysed. A complication of any severity was detected in 68.7 per cent of patients (2901 of 4223). Major complication rates (Clavien–Dindo grade at least IIIa) were 24, 18, and 27 per cent, and mortality rates were 10, 5, and 5 per cent in low-to-middle-, high-, and very high-HDI countries respectively. The 90-day postoperative mortality rate was 5.4 per cent (229 of 4223) overall, but was significantly higher in the low-to-middle-HDI group (adjusted OR 2.88, 95 per cent c.i. 1.80 to 4.48). The overall failure-to-rescue rate was 21 per cent; however, it was 41 per cent in low-to-middle- compared with 19 per cent in very high-HDI countries. Conclusion: Excess mortality in low-to-middle-HDI countries could be attributable to failure to rescue of patients from severe complications. The authors call for a collaborative response from international and regional associations of pancreatic surgeons to address management related to death from postoperative complications to tackle the global disparities in the outcomes of pancreatic surgery (NCT04652271; ISRCTN95140761).

17 November 2021 in British Journal of Surgery
Verified
Journal Article
Closed access
BLBelle Liew
Belle Liew
DNDavid Nasralla
David Nasralla
SISatheesh Iype
Satheesh Iype
JPJörg-Matthias Pollok
Jörg-Matthias Pollok
BDBrian Davidson
Brian Davidson
DRDimitri Aristotle Raptis
Dimitri Aristotle Raptis
Background: The pressure on liver-transplant programmes has expanded the usage of extended-criteria allografts. Machine perfusion may be better than conventional static cold storage (SCS) in alleviating ischaemia–reperfusion injury in this setting. Recipient outcomes with hypothermic or normothermic machine perfusion were assessed against SCS here. Methods: A search in MEDLINE, EMBASE and Scopus was conducted in February 2021. Primary studies investigating ex vivo machine perfusion were assessed for the following outcomes: morbidity, ICU and hospital stay, graft and patient survival rates and relative costs. Meta-analysis was performed to obtain pooled summary measures. Results: Thirty-four articles involving 1742 patients were included, of which 20 were used for quantitative synthesis. Odds ratios favoured hypothermic machine perfusion (over SCS) with less early allograft dysfunction, ischaemic cholangiopathy, non-anastomotic strictures and graft loss. Hypothermic machine perfusion was associated with a shorter hospital stay and normothermic machine perfusion with reduced graft injury. Two randomized clinical trials found normothermic machine perfusion reduced major complication risks. Conclusion: Machine perfusion assists some outcomes with potential cost savings.