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Dive into the research topics where Cesar Ruiz is active.

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Featured researches published by Cesar Ruiz.


Laryngoscope | 2001

Laryngeal preservation with supracricoid partial laryngectomy results in improved Quality of Life when compared with total laryngectomy

Gregory S. Weinstein; Mohamed Mahmoud El‐Sawy; Cesar Ruiz; Patricia Dooley; Ara A. Chalian; Mostafa Mohamed El‐Sayed; Andrew N. Goldberg

Objectives/Hypotheses Study 1: To assess the oncologic outcome following supracricoid partial laryngectomy (SCPL). Study 2: To compare the quality of life (QOL) following SCPL to total laryngectomy (TL) with tracheoesophageal puncture (TEP). Study 3: To analyze whole organ TL sections to determine the percentage of lesions amenable to SCPL.


Journal of Voice | 2000

Paradoxical vocal fold motion: Presentation and treatment options

Ken W. Altman; Natasha Mirza; Cesar Ruiz; Robert T. Sataloff

Paradoxical vocal fold motion is a rare disorder in which adduction of the folds occurs on inspiration. The disorder presents with signs of airway obstruction and often airway distress, so proper diagnosis by the otorhinolaryngologist is critical to subsequent management. We present a retrospective review of 10 patients with the diagnosis of paradoxical vocal fold motion seen over a 6-year period. Eight patients were females, and 6 required an acute airway intervention at presentation; 3 patients eventually underwent tracheotomy for respiratory decompensation. Six patients had a prior diagnosis of asthma, and this was determined to contribute to their respiratory status. Five patients were treated with botulinum toxin and 2 with flexible nasolaryngoscopic biofeedback, which improved the outcome. A review of the literature confirms a female predominance of patients presenting with paradoxical adduction and airway distress, often with a history of asthma and psychopathology. Our experience with botulinum toxin and biofeedback suggests that these procedures are viable treatment options in the management of patients with this disorder.


Otolaryngology-Head and Neck Surgery | 1997

Pilot study of the oral omeprazole test for reflux laryngitis

David C. Metz; Marcia Childs; Cesar Ruiz; Gregory S. Weinstein

BACKGROUND Gastroesophageal reflux disease occasionally presents with laryngeal symptoms. Such patients are often referred for a gastroenterology evaluation. This study was designed to determine whether an empiric trial of high-dose omeprazole therapy could reliably identify patients with reflux laryngitis and thus obviate the need for a gastroenterology workup. METHODS Patients were evaluated with a history, physical examination, esophageal manometry, upper endoscopy, and 24-hour pH-metry for determination of the presence of absence of underlying gastroesophageal reflux disease and then received an empiric trial of oral omeprazole therapy (20 mg twice daily for 1 month). A positive omeprazole test result was defined as resolution of all laryngeal symptoms on completion of the empiric trial of therapy. RESULTS Two patients were classified as having no reflux, and eight were classified as having reflux. Omeprazole test results were positive in six patients. Five of six had reflux, but one patient had no evidence for reflux. Omeprazole test results were negative in four patients. Three of four had reflux, and one did not. Despite the absence of antisecretory therapy, laryngeal symptoms did not recur in either patient without reflux during follow-up. Laryngeal symptoms were managed in two of the three patients with reflux who had negative omeprazole test results and who were using inhalers in combination with histamine H2 receptor antagonist therapy for their reflux disease. One patient with reflux who had a negative omeprazole test result responded to higher doses of omeprazole, and the five patients with reflux who had positive omeprazole test results all responded to continuation of omeprazole. CONCLUSIONS The omeprazole test may be useful in confirming the suspicion of reflux laryngitis in patients suspected of having this disease after an otolaryngology evaluation. However, there is a potential for false-positive and false-negative test results. A gastroenterology evaluation may aid in the identification of false-positive test results by documenting the absence of reflux in certain responders.


Annals of Otology, Rhinology, and Laryngology | 2002

Larynx preservation with supracricoid partial laryngectomy with cricohyoidoepiglottopexy. Correlation of videostroboscopic findings and voice parameters.

Gregory S. Weinstein; Ollivier Laccourreye; Cesar Ruiz; Patricia Dooley; Ara A. Chalian; Natasha Mirza

Classically, the formation of a mucosal wave is dependent on the pliable mucosa present in the vocal fold. The supracricoid partial laryngectomy with cricohyoidoepiglottopexy is an organ preservation surgical technique in which both true vocal folds, both false vocal folds, both paraglottic spaces, and the entire thyroid cartilage are resected. The functional goal is speech and swallowing without a permanent tracheostomy. In an effort to further study voice production in these patients, we performed laryngeal stroboscopy in 5 patients. Analysis was performed with a modified Bless grading system. In addition, speech and voice parameters were also measured and correlated with stroboscopic findings. The key finding in this study was the presence of a periodic mucosal wave on the anterior aspect of the arytenoid cartilage, where it abuts the epiglottic cartilage. Patients with lower periodicity and symmetry scores tended to have lower jitter and shimmer percentages.


Operations Research Letters | 2006

CymetraTM Injections to Treat Leakage around a Tracheoesophageal Puncture

Meena Seshamani; Cesar Ruiz; Sandra Schwartz; Natasha Mirza

Tracheoesophageal puncture (TEP) is a commonly used method of voice restoration following total laryngectomy, but leakage around the prosthesis is prevalent. Several treatments for leakage have been proposed in the literature, but with varying success. This paper examines the efficacy of CymetraTM to help shrink the TEP site and stop leakage. Six patients with leaking TEP sites refractory to downsizing and/or cautery were selected for the study. Injection sites were determined based on the primary sites of leakage. Cymetra was rehydrated with 1.0 % lidocaine saline solution and injected via a 23-gauge needle a few millimeters deep to the mucosa, approximately 2 mm from the edge. The patients were followed for up to 13 months. Following 1 trial of Cymetra injection, 4 patients achieved successful results. Only 1 patient has not yet achieved full resolution of leakage. Cymetra may provide a safer and more effective option for resolution of leakage than other methods currently employed.


Ear, nose, & throat journal | 2003

The prevalence of major psychiatric pathologies in patients with voice disorders

Natasha Mirza; Cesar Ruiz; Eric D. Baum; Jeffrey P. Staab


Otolaryngologic Clinics of North America | 2004

Voice rehabilitation after external partial laryngeal surgery.

Anthony Sparano; Cesar Ruiz; Gregory S. Weinstein


/data/revues/00306665/v37i3/S0030666504000568/ | 2011

Voice rehabilitation after external partial laryngeal surgery

Anthony Sparano; Cesar Ruiz; Gregory S. Weinstein


Otolaryngology-Head and Neck Surgery | 2006

11:32 AM: Post-Chemoradiation Dysphagia: A Challenge in Management

Natasha Mirza; Benjamin S. Bleier; Cesar Ruiz; Julia Howard


Archive | 2005

Disfagia de transferencia

Natasha Mirza; Cesar Ruiz; Patricia Dooley

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Natasha Mirza

University of Pennsylvania

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Patricia Dooley

University of Pennsylvania

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Anthony Sparano

University of Pennsylvania

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Ara A. Chalian

University of Pennsylvania

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David C. Metz

University of Pennsylvania

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Marcia Childs

University of Pennsylvania

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Benjamin S. Bleier

Massachusetts Eye and Ear Infirmary

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Eric D. Baum

University of Pennsylvania

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