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The-Laboratory-Report_Fall-2014

THE LABORATORY REPORT Fall 2014 Page 2 Houston Methodist Sugar Land Hospital Implements New Diagnostic Procedures structures. Similarly, the EUS procedure obtains biopsies from tissues surrounding the gastrointestinal tract. After the specimens are obtained and while the patient is still sedated, they are rapidly and thoroughly examined by the pathologist to ensure specimen quality and determine types of cells present. “EBUS is a rapid process that provides a reliable and noninvasive alternative to performing openchest surgery to gain access to thoracic lymph nodes,” explained Dr. Seema Mullick, Medical Director of Laboratory Services at Houston Methodist Sugar Land Hospital. “We are extremely proud to be the only community hospital in the Fort Bend area to offer these highly sophisticated procedures to our patients,” she stated. Both EBUS and EUS were implemented in early 2014. Currently, there are four pulmonologists and one gastroenterologist performing these procedures. However, Dr. Mullick estimates that as the hospital continues to expand, the service volume will increase. Dr. Seema Mullick New Tests Available from Houston Methodist Diagnostic Laboratory: Gastrointestinal Pathogen Assay The Microbiology Laboratory of the Houston Methodist Hospital recently validated and implemented a real-time PCR assay to detect the 22 most common gastrointestinal pathogens that cause diarrhea, including Adenovirus (type 40 and 41), Astrovirus, Campylobacter species, Clostridium difficile (Toxin A/B), Cryptosporidium species, Cyclospora cayetanensis, Entamoeba histolytica, Escherichia coli O157, Enteroaggregative E. coli, Enteropathogenic E. coli, Enterotoxigenic E. coli, Shiga-like toxin-producing E. coli, Shigella/Enteroinvasive E. coli, Giardia lamblia, Norovirus, Houston Methodist Sugar Land Hospital recently expanded its diagnostic repertoire to include endobronchial (EBUS) and endoscopic (EUS) ultrasound testing. Performed in a dedicated endoscopy suite, the two procedures are noninvasive alternatives to major surgeries and are used to diagnose and stage cancer and detect infections. Both procedures are performed by a multidisciplinary team that includes a pulmonologist (EBUS) or gastroenterologist (EUS), an anesthesiologist, pathologist, and endoscopy staff. The premise of the EBUS procedure is to collect lung or thoracic lymph node biopsies through a transbronchial needle aspiration guided by an ultrasound probe to allow visualization of internal Image from www.filmarray.com Plesiomonas shigelloides, Rotavirus, Salmonella species, Sapovirus, Vibrio cholerae, and Yersinia enterocolitica. Diarrhea, which is commonly caused by an infection of the gastrointestinal tract by one or more pathogens, is a significant source of morbidity and mortality worldwide. In the United States, approximately 375 million episodes of diarrhea are estimated to occur annually. Children, the elderly, and immunocompromised individuals are particularly susceptible to severe disease. Real-time PCR is a highly sensitive and specific method to detect the presence of nucleic acid from pathogens in a clinical specimen. The new Gastrointestinal Pathogen Assay can rapidly detect organisms that are difficult to identify using traditional culture-based methods. The assay is FDA-approved and has a 4-hour turnaround time after receipt in the laboratory. For more information on the Gastrointestinal Pathogen Assay or any Microbiology Laboratory test, please contact: Dr. James Davis: jrdavis@houstonmethodist.org, Dr. Randall Olsen: rjolsen@houstonmethodist.org, or Ms. Patricia Cernoch: pcernoch@houstonmethodist.org


The-Laboratory-Report_Fall-2014
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