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Natural Orifice Translumenal Endoscopic Surgery (NOTES) Towards Brighter Future

            After all, abdominal operations are typically under the  hemi diaphragms and externalization of the wires. The same
            purview of the general surgeon, but gastroenterologists are  procedure of insertion could be performed through a
            usually expert in flexible endoscopy. In all likelihood, minimal  gastrotomy using NOTES which might obviate the need to
            access surgeons and a small subset of advanced
                                                               transport a critically ill patient to the operating room.
            gastrointestinal endoscopists will be the NOTES surgeons
                                                                  Another scenario applicable to NOTES is the question
            of the future.
               The NOTES surgeon should be expert in flexible  of necrotic small bowel in cases of potential mesenteric
                                                                                    39
            endoscopy, abdominal anatomy, and surgical techniques.  ischemia in ICU patients.  These types of patients are usually
            He or she should be capable of managing the pre- and  critically ill and cannot taken to the computed tomography
            postoperative care of the patients and, in particular, should  (CT) scanner without risks. The presence of ischemic small
            be capable of handling complications from the procedure  bowel might be confirmed with transgastric peritoneoscopy
            itself. It is also practical and of paramount importance that  and should a short segment of ischemic small bowel be
            NOTES surgeons should be able to perform an operation  visualized, the patient could be wheeled to the operating
            laparoscopically and conventionally, as conversion to one  room. Extensive small bowel necrosis not compatible with
            of these modalities is a possibility in any NOTES procedure.  life might not be suitable for an operation, and the costs
            These qualifications cross the boundaries of most  associated with a nontherapeutic laparotomy would be
            gastrointestinal endoscopy teaching programs; hence, a new  spared.
            training model should be adopted. A gastrointestinal surgeon  The minimal requirements of instruments and only the
            wishing to practice NOTES should pursue fellowship  need for disinfection, rather than sterilization, make NOTES
            training in advanced endoscopy while gastroenterologist  appropriate for developing regions of the world. NOTES
            should complete a year of advanced interventional  could be performed without the infrastructure requirements
            endoscopy and possibly an additional year dedicated to  of an operating theater and sterilization unit. The light source,
            Surgery. Trainees from both the fields of surgery and  video processor, and monitor could be easily transported
            gastroenterology should dedicate a substantial amount of  from one place to another to best serve populations in need.
            time to laboratory endeavors, as this is where skills can be  NOTES might be the means to bring surgical care to
            safely polished before clinical application. Training for a  underserved people even in the remotest of places.
            future in NOTES surgery will be different for surgeons and  The transportable nature of NOTES might make it
            gastroenterologists. A gastrointestinal surgeon will likely  amenable for battlefield abdominal exploration. A frontline
            focus on the technical aspects of flexible endoscopy, and a  facility could be arranged to explore the abdomen after
            gastroenterologist might need familiarization with gross  serious abdominal trauma, If required hemostasis might be
            abdominal anatomy and laparoscopy. Neither surgeons nor  achieved with topical hemostatics or endoscopically placed
            gastroenterologists should consider NOTES an infringement  packing. Once stabilized, the patient could then be transported
            on their territory or the demise of traditional surgery or  to a higher center for definitive management.
            endoscopy.                                            Another possible derivative of NOTES is single port
                                                               laparoscopy. For example a cholecystectomy might be
            A BRIGHT FUTURE                                    performed through a single 10 mm umbilical port. A flexible
                                                               laparoscope could be maneuvered into position and locked
            Although today we are not far from but still we are not on
                                                               into place and special triangulating instruments with multiple
            the brink of widespread pure clinical NOTES. There are
                                                               degrees of freedom could then be used for the dissection.
            many potential applications of NOTES that will likely
                                                               Specimen removal would then occur through the single
            manifest in the near future. Given the portability of NOTES
                                                               umbilical port.
            equipment and the requirement for only conscious sedation,
            NOTES is ideally suited for the intensive care units. There
                                                               CRITIQUES
            are two potential scenarios that have been described are
            applicable to ICU NOTES: diaphragm pacing and      It is more than tempting to be swept up in the euphoria for
            peritoneoscopic examination for ischemic bowel.    NOTES, but hard data supporting the clinical applications
               Diaphragm pacing has been shown to be effective  of NOTES need to be accumulated before widespread use.
            modality in promoting ventilator weaning in ICU patients. 38  NOSCAR put forward the questions regarding the safety
            The procedure is commonly performed laparoscopically in  and utility of NOTES in the White Paper, and some of the
            the operating room with insertion of pacing wires into both  answers are manifesting.

            World Journal of Laparoscopic Surgery, January-April 2010;3(1):19-25                              23
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