Stan Benjamens

Mr. Stan Benjamens

University Medical Center Groningen
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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11 September 2020 in npj Digital Medicine
Verified
Journal Article
Open access
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Stan BenjamensStan Benjamens
Stan Benjamens
Pranavsingh DhunnooPranavsingh Dhunnoo
Pranavsingh Dhunnoo
BMBertalan Meskó
Bertalan Meskó
At the beginning of the artificial intelligence (AI)/machine learning (ML) era, the expectations are high, and experts foresee that AI/ML shows potential for diagnosing, managing and treating a wide variety of medical conditions. However, the obstacles for implementation of AI/ML in daily clinical practice are numerous, especially regarding the regulation of these technologies. Therefore, we provide an insight into the currently available AI/ML-based medical devices and algorithms that have been approved by the US Food & Drugs Administration (FDA). We aimed to raise awareness of the importance of regulatory bodies, clearly stating whether a medical device is AI/ML based or not. Cross-checking and validating all approvals, we identified 64 AI/ML based, FDA approved medical devices and algorithms. Out of those, only 29 (45%) mentioned any AI/ML-related expressions in the official FDA announcement. The majority (85.9%) was approved by the FDA with a 510(k) clearance, while 8 (12.5%) received de novo pathway clearance and one (1.6%) premarket approval (PMA) clearance. Most of these technologies, notably 30 (46.9%), 16 (25.0%), and 10 (15.6%) were developed for the fields of Radiology, Cardiology and Internal Medicine/General Practice respectively. We have launched the first comprehensive and open access database of strictly AI/ML-based medical technologies that have been approved by the FDA. The database will be constantly updated.

7 July 2020 in Annals of Surgery
Verified
Journal Article
Open access
VMVincent Meyer
Vincent Meyer
Stan BenjamensStan Benjamens
Stan Benjamens
MMMostafa El Moumni
Mostafa El Moumni
JLJohan F. M. Lange
Johan F. M. Lange
RPRobert A. Pol
Robert A. Pol
Objective: Identify key demographic factors and modes of follow-up in surgical survey response. Summary Background Data: Surveys are widely used in surgery to assess patient and procedural outcomes, but response rates vary widely which compromises study quality. Currently there is no consensus as to what the average response rate is and which factors are associated with higher response rates. Methods: The National Library of Medicine (MEDLINE/PubMed) was systematically searched from Januray 1, 2007 until February 1, 2020 using the following strategy: (((questionnaire) OR survey) AND “response rate”) AND (surgery OR surgical). Original survey studies from surgical(-related) fields reporting on response rate were included. Through one-way analysis of variance we present mean response rate per survey mode over time, number of additional contacts, country of origin, and type of interviewee. Results: The average response is 70% over 811 studies in patients and 53% over 1746 doctor surveys. In-person surveys yield an average 76% response rate, followed by postal (65%) and online (46% web-based vs 51% email) surveys. Patients respond significantly more often than doctors to surveys by mail (P < 0.001), email (P = 0.003), web-based surveys (P < 0.001) and mixed mode surveys (P = 0.006). Additional contacts significantly improve response rate in email (P = 0.26) and web-based (P = 0.041) surveys in doctors. A wide variation in response rates was identified between countries. Conclusions: Every survey is unique, but the main commonality between studies is response rate. Response rates appear to be highly dependent on type of survey, follow-up, geography, and interviewee type.

1 July 2020 in European Journal of Surgical Oncology
Verified
Journal Article
Open access
WPWillemijn Y. van der Plas
Willemijn Y. van der Plas
Stan BenjamensStan Benjamens
Stan Benjamens
SKSchelto Kruijff
Schelto Kruijff
Although palliative care as a discipline in high income countries is maturing, it is still somewhat in its infancy in sub-Saharan Africa, an area where this type of care is needed the most: more than 80% of people in urgent need of palliative care live in low- and middle-income countries (LMICs). We will describe why the development of palliative care in LMICs is increasingly essential, and how it is currently still underdeveloped. In this manuscript, we discuss the challenges in organizing palliative care in LMICs in regard to the four WHO palliative care pillars: policy, education, medication, and implementation. We will illustrate how several Sub-Saharan African countries are increasingly able to provide palliative care analyzed in terms of these pillars. Ultimately, scientific research and cost-effectiveness analyses of well-developed palliative programs, should encourage both local and international governments and authorities to provide more capital and human recourses for palliative care in the future.

19 October 2020 in Transplantation Direct
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Journal Article
Open access
Stan BenjamensStan Benjamens
Stan Benjamens
LBLouise B.D. Bsc Banning
Louise B.D. Bsc Banning
TBTamar A.J. Bsc van Den Berg
Tamar A.J. Bsc van Den Berg
RPRobert A. Pol
Robert A. Pol
Background.: Over the past decades, there has been a rapid change in the gender ratio of medical doctors, whereas gender differences in academia remain apparent. In transplantation research, a field already understaffed with female doctors and researchers, there is little published data on the development in proportion, citations, and funding of female researchers over the past years. Methods.: To evaluate the academic impact of female doctors in transplantation research, we conducted a bibliometric analysis (01 January 1999 to 31 December 2018) of high-impact scientific publications, subsequent citations, and funding in this field. Web of Science data was used in combination with software R-Package “Gender,” to predict gender by first names. Results.: For this study, 15 498 (36.2% female; 63.8% male) first and 13 345 (30.2% female; 69.8% male) last author gender matches were identified. An increase in the percentage of female first and last authors is seen in the period 1999–2018, with clear differences between countries (55.1% female authors in The Netherlands versus 13.1% in Japan, for example). When stratifying publications based on the number of citations, a decline was seen in the percentage of female authors, from 34.6%–30.7% in the first group (≤10 citations) to 20.8%–23.2% in the fifth group (>200 citations), for first (P < 0.001) and last (P = 0.014) authors, respectively. From all first author name-gender matches, 6574 (41.6% female; 58.4% male, P < 0.001) publications reported external funding, with 823 (35.5% female; 64.5% male, P = 0.701) reported funding by pharmaceutical companies and 1266 (36.6% female; 63.4% male, P < 0.001) reporting funding by the National Institutes of Health. Conclusions.: This is the first analysis of gender bias in scientific publications, subsequent citations, and funding in transplantation research. We show ongoing differences between male and female authors in citation rates and rewarded funding in this field. This requires an active approach to increase female representation in research reporting and funding rewarding.

1 July 2017 in European Journal of Endocrinology
Verified
Journal Article
Closed access
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Stan BenjamensStan Benjamens
Stan Benjamens
RDRobin P F Dullaart
Robin P F Dullaart
WSWim J Sluiter
Wim J Sluiter
MRMichiel Rienstra
Michiel Rienstra
IGIsabelle C van Gelder
Isabelle C van Gelder
TLThera P. Links
Thera P. Links
Objective Amiodarone is used for the maintenance of sinus rhythm in patients with arrhythmias, but thyroid dysfunction (amiodarone-induced thyrotoxicosis (AIT) or amiodarone-induced hypothyroidism (AIH)) is a common adverse effect. As the onset of AIT and AIH may be unpredictable, the value of long-term regular monitoring of amiodarone treated patients for thyroid dysfunction is still uncertain. Design We retrospectively documented the frequency at which overt thyroid dysfunction was preceded by subclinical thyroid dysfunction. Methods We included 303 patients treated with amiodarone between 1984 and 2007. AIT was defined as a lowered TSH level with an elevated free thyroxine (FT4) and AIH was defined as an elevated TSH level with a decreased or subnormal FT4. Subclinical AIT was defined as a lowered TSH level with a normal FT4 and subclinical AIH as an elevated TSH level with a normal FT4. Results 200 men and 103 women, aged 62 ± 12.0 years, suffering from atrial (260) or ventricular (43) arrhythmias, were evaluated. During a median follow-up of 2.8 (1.0–25) years, 44 patients developed AIT and 33 AIH. In 42 (55%) patients who developed AIT/AIH, earlier thyroid function tests showed no subclinical AIT or subclinical AIH. In 35 (45%) patients, AIT/AIH was preceded by subclinical AIT or subclinical AIH (16/44 for AIT and 19/33 for AIH). Conclusions In a considerable proportion of patients who developed AIT/AIH, earlier thyroid function tests showed no subclinical AIT/AIH. Less than half of the patients with a subclinical event subsequently developed overt AIT/AIH. This study provides data to reconsider the yield of regular testing of thyroid function to predict overt thyroid dysfunction in amiodarone treated patients.

1 January 2019 in Pancreatology
Verified
Journal Article
Closed access
Stan BenjamensStan Benjamens
Stan Benjamens
MLMarjolein Leemkuil
Marjolein Leemkuil
CMChristian Margreiter
Christian Margreiter
VHVolkert Al. Huurman
Volkert Al. Huurman
HLHenri Leuvenink
Henri Leuvenink
RPRobert A. Pol
Robert A. Pol