Jean I Keddissi

Prof. Jean I Keddissi

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Research Focus & Metrics

Academic Career Length

24Years (2003-Present)

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

Representative Publications

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1 December 2007 in Chest
Verified
Journal Article
Closed access
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JKJean I Keddissi
Jean I Keddissi
WYWalid G. Younis
Walid G. Younis
ECElie A. Chbeir
Elie A. Chbeir
NDNadim N. Daher
Nadim N. Daher
TDTarek A. Dernaika
Tarek A. Dernaika
GKGary T. Kinasewitz
Gary T. Kinasewitz

1 January 2019 in Canadian Journal of Respiratory Therapy
Verified
Journal Article
Open access
JKJean I Keddissi
Jean I Keddissi
HYHoussein Youness
Houssein Youness
KJKellie Jones
Kellie Jones
GKGary Kinasewitz
Gary Kinasewitz
Acute Respiratory Distress Syndrome remains a major source of morbidity and mortality in the modern intensive care unit (ICU). Major advances in the understanding and management of this condition were made in the last two decades. The use of low tidal ventilation is a well-established therapy. Conservative fluid management is now another cornerstone of management. However, much remains to be understood in this arena. Assessing volume status in these patients may be challenging and the tools available to do so are far from perfect. Several dynamic measures including pulse pressures variation are used. Ultrasound of the lungs and the vascular system may also have a role. In addition, the type of fluid to administer when needed is still open to debate. Finally, supportive measures in these patients, early during their ICU stay and later after discharge continue to be crucial for survival and adequate recovery.

18 April 2022 in Diagnostics
Verified
Journal Article
Open access
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BJBlake Jacobs
Blake Jacobs
GSGhias Sheikh
Ghias Sheikh
HYHoussein Youness
Houssein Youness
JKJean I Keddissi
Jean I Keddissi
TATony Abdo
Tony Abdo
Malignant pleural effusion (MPE) is a common complication of thoracic and extrathoracic malignancies and is associated with high mortality. Treatment is mainly palliative, with symptomatic management achieved via effusion drainage and pleurodesis. Pleurodesis may be hastened by administering a sclerosing agent through a thoracostomy tube, thoracoscopy, or an indwelling pleural catheter (IPC). Over the last decade, several randomized controlled studies shaped the current management of MPE in favor of an outpatient-based approach with a notable increase in IPC usage. Patient preferences remain essential in choosing optimal therapy, especially when the lung is expandable. In this article, we reviewed the last 10 to 15 years of MPE literature with a particular focus on the diagnosis and evolving management.

18 August 2013 in BioMed Research International
Verified
Journal Article
Open access
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JKJean I Keddissi
Jean I Keddissi
MEMarwan K. Elya
Marwan K. Elya
SFSaif U. Farooq
Saif U. Farooq
HYHoussein A. Youness
Houssein A. Youness
KJKellie R. Jones
Kellie R. Jones
GKGary T. Kinasewitz
Gary T. Kinasewitz
Background. Improvement in PFT after bronchodilators is characteristic of obstructive airway diseases such as COPD. However, improvement in patients with restrictive pattern is occasionally seen. We aim to determine the clinical significance of a bronchodilator responsive restrictive defect.Methods. Patients with restrictive spirometry and a bronchodilator study were identified at the University of Oklahoma and Oklahoma City VAMC between September 2003 and December 2009. Restriction was defined as a decreased FVC and FEV1, with normal FEV1/FVC. Responsiveness to bronchodilators was defined as an improvement in FEV1 and/or FVC of at least 12% and 200 mL. Patients with lung volume measurements had their clinical and radiographic records reviewed.Results. Twenty-one patients were included in the study. Most were current or ex-smokers, with most being on bronchodilators. The average FVC and FEV1 were65±11%and62±10%of the predicted, respectively. Most patients (66%) had a normal TLC, averaging90±16%of the predicted. RV, RV/TLC, and the TLC-VA values strongly suggested an obstructive defect.Conclusions. Reversible restrictive pattern on spirometry appears to be a variant of obstructive lung disease in which early airway closure results in air trapping and low FVC. In symptomatic patients, a therapeutic trial of bronchodilators may be beneficial.

10 December 2021 in Diagnostics
Verified
Journal Article
Open access
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HJHuzaifa A. Jaliawala
Huzaifa A. Jaliawala
SFSamid Muhammad Farooqui
Samid Muhammad Farooqui
KHKassem Harris
Kassem Harris
TATony Abdo
Tony Abdo
JKJean I Keddissi
Jean I Keddissi
HYHoussein Youness
Houssein Youness
Since the endobronchial ultrasound bronchoscope was introduced to clinical practice, endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) has become the procedure of choice to sample hilar and mediastinal adenopathy. Multiple studies have been conducted in the last two decades to look at the different technical aspects of the procedure and their effects on the final cytopathological yield. In addition, newer modes of ultrasound scanning and newer tools with the potential to optimize the selection and sampling of the target lymph node have been introduced. These have the potential to reduce the number of passes, reduce the procedure time, and increase the diagnostic yield, especially in rare tumors and benign diseases. Herein, we review the latest updates related to the technical aspects of EBUS-TBNA and their effects on the final cytopathological yield in malignant and benign diseases.

13 February 2025 in Diagnostics
Verified
Journal Article
Open access
PDF file
PEPeter A. Ebeling
Peter A. Ebeling
SDsalim daouk
salim daouk
JKJean I Keddissi
Jean I Keddissi
HYHoussein Youness
Houssein Youness
Background/Objectives: Robot-assisted bronchoscopy (RAB) is a novel platform for sampling peripheral pulmonary nodules (PPNs). To further clarify the role robot-assisted platforms have in diagnosing PPNs, we performed a review of the recent literature. Methods: A systematic review was performed in Medline from 2019 to 2024 using the search terms “robotic bronchoscopy”, “diagnostic yield”, “sensitivity”, and “positive predictive value”, alone and in combination. Studies that focused on earlier electromagnetic bronchoscopies were excluded. The patient demographic information, nodule characteristics, intra-procedure imaging modality, biopsy methods, diagnostic yield, sensitivity for malignancy, and adverse outcomes were analyzed. A total of 22 studies were available for the analyses. Results: The diagnostic yield was variable and ranged from 69 to 93%, with a median of 86%. The sensitivity ranged from 69% to 91.7%, with a median of 85%. The effect of the nodule size on the diagnostic yield was variable across the literature. Obtaining an eccentric or concentric view on a radial endobronchial ultrasound (rEBUS) was associated with a higher diagnostic yield than obtaining no view. A nodule appearance on CT imaging and the location were not definitively associated with a higher diagnostic yield. Fine needle aspiration usage ranged from 93.5 to 100%, with a median of 96.95%, while the use of biopsy forceps ranged from 2.7 to 96%, with a median of 69.9%. The most common complication was a pneumothorax, which occurred in 1–5.7% of cases, with a median of 1.6%. Conclusions: Robot-assisted transbronchial biopsies produce diagnostic yields that approach those of transthoracic needle aspirations. The nodule location and appearance may not affect the diagnostic yield. Obtaining a concentric or eccentric view on rEBUS is likely associated with an increased diagnostic yield. Additional prospective studies would better inform practitioners as this technology becomes more widespread.