Eugene Y. Chang

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Gastrointestinal healing is a topic rarely reviewed in the literature, yet it is of paramount importance to the surgeon. Failure of anastomotic healing may lead to life-threatening complications, additional surgical procedures, increased length of stay, increased cost, long-term disability, and reduced quality of life for the patient. The goal of this(More)
BACKGROUND Bilateral reduction mammoplasty has been described as a surgical option for treatment of breast cancer in women with large, pendulous breasts. Using this technique can provide unique surgical oncologic challenges. METHODS Retrospective chart review. RESULTS Thirty-seven patients were identified. The average weight of tissue removed was 653 g.(More)
OBJECTIVE To determine whether patients with Barrett esophagus who undergo antireflux surgery differ from medically treated patients in incidence of esophageal adenocarcinoma and probability of disease regression/progression. SUMMARY BACKGROUND DATA Barrett esophagus is a risk factor for the development of esophageal adenocarcinoma. A question exists as(More)
HYPOTHESIS The laparoscopic transhiatal esophagectomy can be simplified and performed safely and effectively by using a novel esophageal inversion technique. DESIGN Case series describing technique, initial experience, and learning curve with laparoscopic inversion esophagectomy. SETTING Tertiary care university hospital and veteran's hospital. (More)
BACKGROUND It is theorized that repeated gastric distention leads to dilatation of the cardia and the development of GERD. We hypothesize that cardia circumference correlates with the presence and the severity of GERD, and we developed software to measure cardia circumference from static endoscopic images. Our aims were to validate the software and to(More)
BACKGROUND In patients who develop symptoms after Nissen fundoplication, the precise mechanism of failure can be difficult to determine. Current testing modalities do not demonstrate sufficient anatomic detail to definitively determine the mechanism. This observational study establishes that EUS can determine fundoplication integrity and hiatal anatomic(More)
Although neoadjuvant chemoradiation eradicates esophageal adenocarcinoma in a substantial proportion of patients, conventional imaging techniques cannot accurately detect this response. Dynamic contrast-enhanced magnetic resonance imaging is an emerging approach that may be well suited to fill this role. This pilot study evaluates the ability of this method(More)
OBJECTIVE Complications of anastomotic healing are a common source of morbidity and mortality after esophagogastrostomy. The delay phenomenon is seen when a skin flap is partially devascularized in a staged procedure prior to its definitive placement, resulting in increased blood flow at the time of grafting. This effect may be applied to(More)
Although conventional esophagogastroduodenoscopy has become widespread in its applications and availability, it is constrained by the requirement for patient sedation. This requirement contributes to morbidity, time lost from work, and additional resource utilization in personnel and facilities. Small-caliber endoscopy is an emerging technology that enables(More)