Publications by authors named "Mohamed Khereba"

Background: Pulmonary artery (PA) sealing in video-assisted thoracoscopic surgery (VATS) lobectomy is typically accomplished using vascular endostaplers. Endostaplers may be associated with iatrogenic PA branch injury, especially in short, small PA branches. We evaluated PA branch sealing with the HARMONIC ACE +7 (ACE) shears (Ethicon, Cincinnati, OH) in VATS lobectomy in a canine survival model.

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Background: The objective was to evaluate whether endobronchial ultrasonography (EBUS) or endoscopic ultrasonography (EUS) staging techniques of the mediastinum for lung cancer can change the treatment plan compared with the "gold standard" of surgical staging.

Methods: Patients were retrospectively identified from a prospectively collected database. Endoscopic staging was compared with the "gold standard" cervical mediastinoscopy (CM).

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Background: The standard technique for pulmonary arterial (PA) branch sealing in video-assisted thoracoscopic surgery lobectomy consists of vascular endostaplers. We evaluated the immediate efficacy of an ultrasonic energy vessel-sealing device for sealing PA branches and compared it with the gold standard (endostapler) in an ex vivo model.

Methods: This was a prospective cohort study.

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Background: Natural orifice transluminal endoscopic surgery (NOTES) has the potential to be the final frontier in minimally invasive procedures in thoracic surgery. In order for thoracic pleural NOTES to 1 day be ready for clinical trials, each step of the procedure must be independently evaluated for both safety and efficacy. The aim of this study was to evaluate the trachea as a portal of entry for thoracic NOTES.

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Objective: Vascular endostaplers are bulky and can be dangerous when dividing small pulmonary arterial (PA) branch vessels during video-assisted thoracoscopic lobectomy. We aimed to evaluate and compare the immediate efficacy of modern energy sealing devices in an ex vivo PA sealing model.

Methods: Patients undergoing anatomical lung resection or lung transplantation were recruited for a prospective cohort pilot study.

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Background: Chest wall invasion in operable lung cancer upgrades the stage and can affect operative planning. Diagnosing chest wall invasion preoperatively is important in patient consent, in the choice of operative incision placement, and can be helpful in choosing an operative approach (open vs thoracoscopic). The objectives of this study were to determine the diagnostic accuracy of preoperative, surgeon-performed ultrasound (US) in assessing tumoral chest wall invasion (T3) in non-small cell lung cancer (NSCLC) patients and to compare its accuracy vs preoperative computed tomography (CT).

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Objectives: Preoperative evaluation of patients with suspected or confirmed lung cancer consists of clinical and radiological staging. Malignant pleural effusion is a poor prognosticator in non-small-cell lung cancer. Pleural ultrasound (PU) allows for the assessment of pleural effusion, providing real-time guidance for its aspiration and cytological analysis.

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Objectives: To investigate the feasibility, accuracy, and effect on conversion rates of intracavitary video-assisted thoracoscopic surgery ultrasonography (VATS-US) for localization of difficult to visualize pulmonary nodules.

Methods: The study consisted of a prospective cohort of VATS-US for localization of intraparenchymal peripheral pulmonary nodules. Patients with pulmonary nodules not touching the visceral pleura on the computed tomography scan, who were scheduled for VATS wedge resection, were prospectively enrolled.

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Objectives: All lymph node stations but the para-aortic are accessible by a combination of endoscopic ultrasound and endobronchial ultrasound. We recently described an echographic-endoscopic technique for the biopsy of para-aortic (station 6) lymph nodes without traversing the thoracic aorta. This study reviewed our initial experience with this new technique.

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Video-assisted thoracoscopic surgery (VATS) has become the standard of care for pleural evaluation, drainage, and pleurodesis. The major limitations to standard VATS techniques include intercostal pain and the unilateral nature of the procedure. We report on a cervical VATS approach for bilateral thoracoscopy, pleural biopsy, and talc pleurodesis using a flexible video endoscope without any intercostal incision.

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Objective: Following thoracic surgery, daily chest X-rays (CXRs) are performed to assess patient evolution and to make decisions regarding chest tube removal and patient discharge. Sonography after thoracic surgery (SATS) has the potential to be an effective, convenient, inexpensive and easy to learn tool in the post-operative management of thoracic surgery patients. We hypothesized that SATS could alleviate the need for repetitive CXRs, thus reducing the related risks, costs and inconvenience.

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