Christelle El Khoury

Dr. Christelle El Khoury

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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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26 December 2019 in Journal of Clinical Medicine
Verified
Journal Article
Open access
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RARechdi Ahdab
Rechdi Ahdab
AMAnthony Mansour
Anthony Mansour
GKGeorges Khazen
Georges Khazen
CKChristelle El Khoury
Christelle El Khoury
TSToni Sabbouh
Toni Sabbouh
NRNaji Riachi
Naji Riachi
Summary: Three consecutive daily sessions of cathodal transcranial direct current stimulation (tDCS) was sufficient to show a significant decrease in headache duration and intensity as well as tablets consumption, in patients suffering from episodic migraine. Background: Migraine prophylaxis is recommended in patients with frequent and/or intense headaches, but poor tolerability and lack of efficacy of preventive drugs are common in clinical practice. Hence, new prophylactic strategies are needed. Objective: The aim of this study was to evaluate the efficacy of tDCS in terms of migraine prophylaxis. Methods: This was a double blind and sham-controlled trial. Forty-two migraine patients were randomly assigned in a crossover design to receive three consecutive daily sessions of both sham and cathodal tDCS stimulation (2.0 mA, 20 min) over the occipital cortex of the dominant side of the migraine pain (O1/O2). Migraine duration and intensity, number of analgesic tablets, and number of headache-free days (where no headache abortive medications are taken) were recorded one week before and two weeks after treatment. A washout period of one week was allowed before crossing to the other treatment arm. Results: Relative to sham, cathodal stimulation was associated with a significant reduction in the number of headache days, tablets consumption, and pain intensity; and a significant increase in the number of headache-free days. These beneficial effects were sustained over two weeks. No serious side effects were observed, and the procedure was well tolerated. Conclusion: Based on these findings, cathodal tDCS applied to the occipital cortex seems to be an effective and well tolerated alternative to pharmacotherapy in patients with episodic migraine.

10 April 2020 in Journal of Clinical Medicine
Verified
Journal Article
Open access
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AMAnthony Mansour
Anthony Mansour
RARechdi Ahdab
Rechdi Ahdab
GKGeorges Khazen
Georges Khazen
CKChristelle El Khoury
Christelle El Khoury
TSToni Sabbouh
Toni Sabbouh
NRNaji Riachi
Naji Riachi
Background: Medication overuse headache (MOH) is a chronic pain syndrome that arises from the frequent use of acute antimigraine drugs. Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation technique with a possible therapeutic effect in this particular context. Methods: This was a randomized, sham-controlled, cross-over study. Eighteen patients with MOH (17 women, age range: 20–38 years) received three sets of three consecutive daily sessions of tDCS: anodal tDCS over the prefrontal cortex, cathodal tDCS over the occipital cortex ipsilateral to the dominant side of migraine pain, and sham. The order in which the tDCS blocks were delivered was randomly defined based on a 1:1:1 ratio. Patients filled in a migraine diary that allowed recording of the pain intensity (visual analogue scale) and the daily consumption of analgesic pills from one week before to two weeks after each condition. Results: Both prefrontal and occipital tDCS lowered the total number of migraine days and the number of severe migraine days per week at week 1, but only the effects of occipital tDCS on these two outcomes lasted until week 2. Only occipital tDCS decreased the daily analgesic pills consumption, at weeks 1 and 2. Conclusion: Three consecutive days of cathodal occipital tDCS appear to improve the clinical outcomes in patients with MOH.

17 December 2017 in Case Reports in Medicine
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Journal Article
Open access
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CKChristelle El Khoury
Christelle El Khoury
TSToni Sabbouh
Toni Sabbouh
HFHussein Farhat
Hussein Farhat
AFAntoine Ferzli
Antoine Ferzli
We report a case of a bodybuilder who took a regimen of anabolic steroids containing stanozolol and testosterone propionate for 8 weeks which led to the development of jaundice and severe pruritus with serum total bilirubin reaching 41.22 mg/dL. Despite supportive care with fluid and albumin therapy, serum creatinine was progressively increasing. He underwent 6 successful sessions of plasma exchange (PE) with marked improvement at the end of the sessions. Three months after discharge, the patient’s creatinine and total bilirubin levels were 1.08 mg/dL and 1.2 mg/dL, respectively.

1 January 2024 in Medical Research Archives
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Journal Article
Open access
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EHElizabeth Haro
Elizabeth Haro
EBEmma A. Butcher
Emma A. Butcher
MAMartha L Alves
Martha L Alves
CKChristelle El Khoury
Christelle El Khoury
AVAlexandra Vinson
Alexandra Vinson
Diane M. HarperDiane M. Harper
Diane M. Harper
Background. In recent years, cervical cancer screening among Black women in the United States has declined, followed by increased incidence and mortality. We aim to evaluate the individual, sociocultural, and structural barriers to cervical cancer screening in relationship to the exam technique barriers. Methods. Participants received cervical cancer self-screening kits in the mail. They returned their samples and a quantitative survey developed from the Health Information National Trends Survey (HINTS) modules designed to address the known individual, sociocultural, and structural barriers to screening. We established the fourteen attributes of cervical cancer screening techniques from prior work. Participants then shared their experiences in a semi-structured qualitative interview informed by the Theoretical Domains Framework (TDF) to explore the answers to the survey questions. We coded themes from the interviews. Women were grouped as younger (30-45 years) and older (46-65 years). Results. Of the 41 women completing the study, 21 were in the younger age group (mean 37.3, SD 4.7), and 20 were in the older age group (56.5 (5.5)). All participants self-identified as African American/Black and were due for cervical cancer screening. Women indicated that individual, sociocultural, and structural barriers influenced their cervical cancer screening, but the most significant barrier was the speculum-based technique itself. Three positive attributes and eight negative attributes significantly differed by screening technique, favoring the self-screening technique. Conclusions. The self-screening technique for screening for cervical cancer is feasible and acceptable to this group of Black women.

26 February 2025 in Cancer Medicine
Verified
Journal Article
Open access
TGTimothy Guetterman
Timothy Guetterman
CKChristelle El Khoury
Christelle El Khoury
MTMadiha Tariq
Madiha Tariq
GAGhada Aziz
Ghada Aziz
AAAsraa Alhawli
Asraa Alhawli
Diane M. HarperDiane M. Harper
Diane M. Harper
Background: Michigan's Middle Eastern‐North African (MENA) community is an essential and growing part of the state's population. However, MENA individuals are underrepresented in the research literature due to a lack of recognized demographic categorization. Prior work shows that MENA women face barriers to traditional clinician‐directed cervical cancer screening. This study aims to capture the perspectives of MENA women about home‐based urine cervical cancer screening using HPV kits and to assess whether such methods could positively impact future screening intent.Methods: Through collaboration with a community partner in southeast Michigan, we recruited MENA women ages 30–65, with 44 completing the study. Participants used urine HPV self‐sampling kits at home and then shared their perspectives through a phone interview. We used an inductive, thematic approach to analyze the interviews, which captured experiences with home‐based self‐sampling, screening preferences, and impact on future screening intent.Results: Participants found that urine home‐based self‐sampling was acceptable as a convenient and comfortable way to screen for cervical cancer. Most (80%) preferred self‐sampling over traditional clinician‐directed screening and preferred collecting urine samples at home (73%) rather than in the clinic. Overall, 80% reported that access to urine self‐sampling would positively impact their future screening intent.Conclusions: MENA participants in this study positively received home‐based cervical cancer screening using urine HPV self‐sampling kits. These findings support the clinical implementation of self‐sampling and home‐based cervical cancer screening to increase participation, particularly among those in under‐screened communities.