Clinical Focus

  • Otolaryngology
  • Laryngology
  • Voice
  • Airway
  • Swallowing

Academic Appointments

Professional Education

  • Residency:UCLA - School of Medicine (2013) CA
  • Internship:UCLA - School of Medicine (2009) CA
  • Medical Education:Baylor College of Medicine (2008) TX


Journal Articles

  • Indications and outcomes of endoscopic CO2 laser cricopharyngeal myotomy LARYNGOSCOPE Bergeron, J. L., Chhetri, D. K. 2014; 124 (4): 950-954


    To describe indications, management, and outcomes of endoscopic CO2 laser cricopharyngeal myotomy (CPM).Case series with chart review.All patients treated with endoscopic CO2 laser CPM over a 6-year period were identified. A retrospective chart review was performed for surgical indication, history and physical examinations, and swallow evaluations. Swallowing outcomes were assessed using the Functional Outcome Swallowing Scale (FOSS); findings were compared across groups.Eighty-seven patients underwent endoscopic CO2 laser CPM during the study period for cricopharyngeal dysfunction. Indications included Zenker's diverticulum (ZD) (39), DiGeorge syndrome (two), stroke (five), nerve injury (two), radiation for head and neck cancer (15), idiopathic (16), hyperfunctional tracheoesophageal speech (five) and dysphagia from cricopharyngeus stricture after laryngectomy (three). Mean, median, and mode time to feeding postoperatively were 1.4, 1, and 0 days respectively. Mean, median, and mode hospital stays were 1.8, 1, and 1 day respectively. Overall, FOSS scores improved from 2.6 to 1.6 (P < .001). Improvement was greatest for patients with ZD (2.4 to 1.0) and cricopharyngeal dysfunction from nerve injury (3.3 to 1.8) and least for those with prior radiation (3.9 to 3.2). All patients undergoing CPM for poor tracheoesophageal speech regained speech postoperatively. No patients developed mediastinitis, abscess, or fistula.Endoscopic CO2 laser CPM is a safe treatment for cricopharyngeal dysfunction of various causes, though swallowing outcomes may vary depending on the surgical indication. Early feeding postoperatively after CPM is safe and facilitates early hospital discharge.4.

    View details for DOI 10.1002/lary.24415

    View details for Web of Science ID 000332965100034

    View details for PubMedID 24114581

  • Dysphagia Characteristics in Zenker's Diverticulum OTOLARYNGOLOGY-HEAD AND NECK SURGERY Bergeron, J. L., Long, J. L., Chhetri, D. K. 2013; 148 (2): 223-228


    To evaluate dysphagia characteristics in patients with Zenker's diverticulum (ZD).Case series with chart review.Outpatient tertiary care dysphagia clinic.All ZD cases surgically treated over a 6-year period were identified and reviewed for dysphagia history and dysphagia characteristics on initial presentation using fiber-optic endoscopic evaluation of swallowing (FEES). Dysphagia symptoms and swallowing abnormalities were compared across groups based on diverticulum size (small <1 cm, medium 1-3 cm, and large >3 cm).Forty-six patients underwent a total of 52 procedures during the study period. ZD size was available in 49 cases (6 small, 26 medium, 17 large). Regurgitation symptoms were less frequent in patients with small (17%) compared with medium (68%) or large diverticula (76%; P = .03). Postswallow hypopharyngeal reflux (PSHR) was less frequent in patients with small (17%) compared with medium (91%) and large diverticula (87%; P < .01). PSHR was present on all FEES available for patients who presented with a recurrent or residual ZD (n = 7). In all cases, PSHR resolved after successful treatment of ZD. Pharyngeal residue indicating possible weakness was present in 24% of all patients at initial presentation.Preoperative assessment of dysphagia characteristics in ZD patients reveals that PSHR is predictive of a ZD larger than 1 cm and may be useful in surgical planning. PSHR is also helpful in identifying patients with recurrent or residual symptomatic ZD following surgical treatment. Pharyngeal weakness is present in a subset of ZD patients.

    View details for DOI 10.1177/0194599812465726

    View details for Web of Science ID 000318361700007

    View details for PubMedID 23128778

  • Measurable Progress in Female Authorship in Otolaryngology OTOLARYNGOLOGY-HEAD AND NECK SURGERY Bergeron, J. L., Wilken, R., Miller, M. E., Shapiro, N. L., Bhattacharyya, N. 2012; 147 (1): 40-43


    To identify contemporary trends in female authorship in the otolaryngology literature.Analysis of 4 otolaryngology journals.All articles published in Annals of Otology, Rhinology and Laryngology, Archives of Otolaryngology-Head and Neck Surgery, Laryngoscope, and Otolaryngology-Head and Neck Surgery in 2008 were reviewed and compared with prior data from 1978, 1988, and 1998.Each published article's authorship panel was examined for the number of authors and each author's sex, degree, and the subspecialty area of publication. Year-to-year comparisons were conducted for the rates and characteristics of female authorship.A total of 544, 629, 713, and 785 articles from 1978, 1988, 1998, and 2008, respectively, were analyzed. From 1998 to 2008, the overall percentage of female authors increased from 14.5% to 22.5% (P < .001). Similarly, the percentage of articles with a female first author increased from 12.9% to 21.3% (P < .001). Whereas previously pediatric otolaryngology had the highest female first author percentage (range, 6.9%-19.4%), in 2008 all other subspecialties demonstrated significant increases in female first author percentages: otology (18.6%), general (22.3%), head and neck (22.2%), plastics (18.9%), and pediatrics (19.4%) (P = .885). A significant number of female first authors continue to be nonphysicians (19.2% in 2008, P < .001).Female authorship has shown significant and steady increases in the otolaryngology literature, particularly in the past decade. Increased rates of publication from female otolaryngologists within most subspecialties have resulted in similar rates of publication across the subspecialties.

    View details for DOI 10.1177/0194599812438171

    View details for Web of Science ID 000314267600008

    View details for PubMedID 22328701

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