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Anti-reflux surgery helps airway function both before and after lung transplant, study finds

Date:
September 19, 2011
Source:
University of Pittsburgh Schools of the Health Sciences
Summary:
Surgery to correct gastroesophageal reflux disease, or GERD, can preserve lung function in patients with end-stage pulmonary disease both before and after transplantation, according to a new study. The findings suggest that esophageal testing should be performed more frequently among these patients to determine if anti-reflux surgery is needed.

Surgery to correct gastroesophageal reflux disease, or GERD, can preserve lung function in patients with end-stage pulmonary disease both before and after transplantation, according to a new study from the University of Pittsburgh School of Medicine. The findings, published in the Archives of Surgery, suggest that esophageal testing should be performed more frequently among these patients to determine if anti-reflux surgery is needed.

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Many end-stage lung disease patients, particularly those with idiopathic pulmonary fibrosis or cystic fibrosis have GERD, and the reflux problem is very common after lung transplantation, said Blair Jobe, M.D., professor of surgery, Department of Cardiothoracic Surgery, Pitt School of Medicine. Also, GERD has been associated with bronchiolotis obliterans syndrome (BOS), which is a progressive impairment of air flow that is a leading cause of death after lung transplantation. Its cause is not yet known.

"It's possible that reflux, which is due to a weak sphincter between the stomach and esophagus, allows acid and other gastric juices to leak back not only into the esophagus, but also to get aspirated in small amounts into the lungs," Dr. Jobe said. "That micro-aspiration could be setting the stage for the development of BOS."

Lead author Toshitaka Hoppo, M.D., Ph.D., research assistant professor, Department of Cardiothoracic Surgery, Pitt School of Medicine, stressed the importance of esophageal testing for reflux in patients with end-stage pulmonary disease. He noted that "almost one-half of the patients in our series did not have symptoms but were having clinically silent exposure to gastric fluid. Based on this finding, there should be a very low threshold for esophageal testing in this patient population."

For the study, Dr. Jobe's team reviewed medical charts of 43 end-stage lung-disease patients with documented GERD, 19 of whom were being evaluated for lung transplant and 24 who had already undergone transplantation. All the patients were on GERD medications at the time they were evaluated for antireflux surgery (ARS), which prevents fluid from leaking back into the esophagus. Prior to ARS, nearly half of the patients had either no or mild symptoms of GERD and only a fifth had the typical symptoms of heartburn and regurgitation.

The researchers found that nearly all measures of lung function improved after ARS in both the pre- and post-transplant groups. There also were fewer episodes of acute rejection and pneumonia after ARS in the post-transplant group.

"The surgery appeared to benefit even those who hadn't yet had a transplant," Dr. Jobe noted. "Given the shortage of donor organs, ARS might help preserve the patient's own function and buy some more time."

Co-authors of the paper include Yoshiya Toyoda, M.D., Ph.D., James D. Luketich, M.D., and others from the Departments of Cardiothoracic Surgery and of Medicine, Pitt School of Medicine; and John G. Hunter, M.D., of Oregon Health & Science University.


Story Source:

The above story is based on materials provided by University of Pittsburgh Schools of the Health Sciences. Note: Materials may be edited for content and length.


Journal Reference:

  1. T. Hoppo, V. Jarido, A. Pennathur, M. Morrell, M. Crespo, N. Shigemura, C. Bermudez, J. G. Hunter, Y. Toyoda, J. Pilewski, J. D. Luketich, B. A. Jobe. Antireflux Surgery Preserves Lung Function in Patients With Gastroesophageal Reflux Disease and End-stage Lung Disease Before and After Lung Transplantation. Archives of Surgery, 2011; 146 (9): 1041 DOI: 10.1001/archsurg.2011.216

Cite This Page:

University of Pittsburgh Schools of the Health Sciences. "Anti-reflux surgery helps airway function both before and after lung transplant, study finds." ScienceDaily. ScienceDaily, 19 September 2011. <www.sciencedaily.com/releases/2011/09/110919164000.htm>.
University of Pittsburgh Schools of the Health Sciences. (2011, September 19). Anti-reflux surgery helps airway function both before and after lung transplant, study finds. ScienceDaily. Retrieved March 5, 2015 from www.sciencedaily.com/releases/2011/09/110919164000.htm
University of Pittsburgh Schools of the Health Sciences. "Anti-reflux surgery helps airway function both before and after lung transplant, study finds." ScienceDaily. www.sciencedaily.com/releases/2011/09/110919164000.htm (accessed March 5, 2015).

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