The prevalence of Barrett metaplasia in adenocarcinoma of the esophagus suggests that Barrett esophagus is a premalignant condition. Strong consideration should be given to resection in patients with high-grade dysplasia in the setting of Barrett metaplasia. Endoscopic surveillance of patients with Barrett metaplasia may detect adenocarcinoma at an earlier stage more amenable to curative resection. The survival rate of patients with esophageal cancer is poor. Asymptomatic small tumors confined to the esophageal mucosa or submucosa are detected only by chance. Surgery is the treatment of choice for these small tumors. Once symptoms are present (e.g., dysphagia, in most cases), esophageal cancers have usually invaded the muscularis propria or beyond and may have metastasized to lymph nodes or other organs.
In the presence of complete esophageal obstruction without clinical evidence of systemic metastasis, surgical excision of the tumor with mobilization of the stomach to replace the esophagus has been the traditional means of relieving the dysphagia. In the United States, the median age of patients who present with esophageal cancer is 67 years. The results of a retrospective review of 505 consecutive patients who were operated on by a single surgical team over 17 years found no difference in the perioperative mortality, median survival, or palliative benefit of esophagectomy on dysphagia when the group of patients older than 70 years were compared to their younger peers.[Levels of evidence: 3iiA and 3iiB] All of the patients in this series were selected for surgery on the basis of potential operative risk. Age alone should not determine therapy for patients with potentially resectable disease.
Essiac and Flor Essence are herbal tea mixtures that are sold worldwide as health tonics or herbal dietary supplements (see Question 1).
Essiac was first promoted as a cancer treatment in the 1920s. Flor Essence was created a number of years later (see Question 2).
Supporters of Essiac and Flor Essence say that these products make the immune system stronger, have anti-inflammatory effects, and show anticancer activity (see Question 3).
Laboratory, animal, and clinical (human) studies...
The optimal surgical procedure is controversial. One approach advocates transhiatal esophagectomy with anastomosis of the stomach to the cervical esophagus. A second approach advocates abdominal mobilization of the stomach and transthoracic excision of the esophagus with anastomosis of the stomach to the upper thoracic esophagus or the cervical esophagus. One study concluded that transhiatal esophagectomy was associated with lower morbidity than transthoracic esophagectomy with extended en bloc lymphadenectomy; however, median overall disease-free and quality-adjusted survival did not differ significantly. Similarly, no differences in long-term quality of life (QOL) using validated QOL instruments have been reported. In patients with partial esophageal obstruction, dysphagia may, at times, be relieved by placement of an expandable metallic stent  or by radiation therapy if the patient has disseminated disease or is not a candidate for surgery. Alternative methods of relieving dysphagia have been reported, including laser therapy and electrocoagulation to destroy intraluminal tumor.[7,8,9,10]