Warren symposium follows legacy of geneticist giant

If we want to understand how the brain creates memories, and how genetic disorders distort the brain’s machinery, then the fragile X gene is an ideal place to start. That’s why the Stephen T. Warren Memorial Symposium, taking place November 28-29 at Emory, will be a significant event for those interested in neuroscience and genetics. Stephen T. Warren, 1953-2021 Warren, the founding chair of Emory’s Department of Human Genetics, led an international team that discovered Read more

Mutations in V-ATPase proton pump implicated in epilepsy syndrome

Why and how disrupting V-ATPase function leads to epilepsy, researchers are just starting to figure Read more

Tracing the start of COVID-19 in GA

At a time when COVID-19 appears to be receding in much of Georgia, it’s worth revisiting the start of the pandemic in early 2020. Emory virologist Anne Piantadosi and colleagues have a paper in Viral Evolution on the earliest SARS-CoV-2 genetic sequences detected in Georgia. Analyzing relationships between those virus sequences and samples from other states and countries can give us an idea about where the first COVID-19 infections in Georgia came from. We can draw Read more
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radio frequency ablation

Esophageal lesions meet their match

Field Willingham, MD, MPH

Once esophageal tumors establish themselves, a patient’s prognosis is grim and morbidity vast. But when lesions are caught early and removed, especially in the premalignant stage, the odds of survival markedly improve.

When a case calls for it, Emory gastroenterologist Field F. Willingham, MD, MPH, uses a hybrid approach to ousting superficial esophageal lesions. Superficial esophageal lesions are commonly caused by acid reflux disease, or GERD. GERD occurs when stomach acid flows into the esophagus and can lead to a condition known as Barrett’s esophagus, where the cells in the lower esophagus become damaged. This in turn can lead to dysplasia, or pre-cancerous cells.

But for superficial cancers, it is now possible to remove a portion of the lining layer of the GI tract, containing the tumor, with an endoscope.  This can help carefully selected patients avoid a major surgery. The technique, known as an EMR, allows the removal of superficial esophageal tumors and pre-cancer with an endoscope, a slender tube-like instrument.

Detecting and removing esophageal tumors early is essential for a favorable outcome. Once tumors firmly establish themselves in esophageal tissue, the prognosis is grim and morbidity vast. In the past, a diagnosis of an esophageal tumor meant the removal of the esophagus and often the stomach. But now EMR can be used in tandem with radio frequency ablation.

In surgical situations in which radio frequency ablation is not feasible, Willingham and his colleagues are beginning to use an alternate technique, known as cryotherpay, in tandem with EMR. Cryotherapy involves freezing superficial cells to rid the esophagus of suspect cells.

“So, if the end of the esophagus is twisted, or if we can’t touch it with this balloon device, then we can use cryotherapy,” says Willingham. “We’re trying to kill the lining layer with the tumor cells without killing the deeper layer.”

Willingham and his colleagues are seeing evidence that using these very three very different, technologies in tandem or alone will provide patients with a better way to rid them of esophageal lesions while preserving their quality of life.

Posted on October 5, 2011 by admin in Uncategorized Leave a comment