The Stretta® procedure: device, technique, and pre-clinical study data

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Presentation transcript:

The Stretta® procedure: device, technique, and pre-clinical study data David S Utley, MD Gastrointestinal Endoscopy Clinics Volume 13, Issue 1, Pages 135-145 (January 2003) DOI: 10.1016/S1052-5157(02)00113-7

Fig. 1 (A) Stretta® catheter with guidewire in place within tip channel for insertion and positioning, (B) Stretta® catheter with electrodes deployed. Gastrointestinal Endoscopy Clinics 2003 13, 135-145DOI: (10.1016/S1052-5157(02)00113-7)

Fig. 1 (A) Stretta® catheter with guidewire in place within tip channel for insertion and positioning, (B) Stretta® catheter with electrodes deployed. Gastrointestinal Endoscopy Clinics 2003 13, 135-145DOI: (10.1016/S1052-5157(02)00113-7)

Fig. 2 Stretta Control Module. Gastrointestinal Endoscopy Clinics 2003 13, 135-145DOI: (10.1016/S1052-5157(02)00113-7)

Fig. 3 Stretta® catheter positioned 1 cm above Z-line, balloon inflated, needles deployed, irrigation cooling mucosa, and RF energy delivery. Gastrointestinal Endoscopy Clinics 2003 13, 135-145DOI: (10.1016/S1052-5157(02)00113-7)

Fig. 4 Final result of Stretta® procedure. Four antegrade rings above and below the Z-line, 8 lesions per ring. Two gastric cardia rings, 12 lesions per ring. Gastrointestinal Endoscopy Clinics 2003 13, 135-145DOI: (10.1016/S1052-5157(02)00113-7)

Fig. 5 (A) Porcine LES and gastric cardia demonstrating circular muscle lesion as pale staining region on H and E stain and (B) absent staining region on diaphorase staining with intact mucosa. (See also Color Plates 3 and 4.) Gastrointestinal Endoscopy Clinics 2003 13, 135-145DOI: (10.1016/S1052-5157(02)00113-7)

Fig. 5 (A) Porcine LES and gastric cardia demonstrating circular muscle lesion as pale staining region on H and E stain and (B) absent staining region on diaphorase staining with intact mucosa. (See also Color Plates 3 and 4.) Gastrointestinal Endoscopy Clinics 2003 13, 135-145DOI: (10.1016/S1052-5157(02)00113-7)

Color Plate 3 Porcine LES and gastric cardia demonstrating circular muscle lesion as pale staining region on H and E stain (See also Fig. 5A in article by Utley.) Gastrointestinal Endoscopy Clinics 2003 13, 135-145DOI: (10.1016/S1052-5157(02)00113-7)

Color Plate 4 Absent staining region on diaphorase staining with intact mucosa (See also Fig. 5B in article by Utley.) Gastrointestinal Endoscopy Clinics 2003 13, 135-145DOI: (10.1016/S1052-5157(02)00113-7)

Fig. 6 Acute thermal lesion within human gastric cardia. Patient treated under human subjects protocol several hours before esophagogastrectomy for midesophageal adenocarcinoma. Thermal lesion within circular muscle, with overlying intact mucosa. (See also Color Plate 5.) Gastrointestinal Endoscopy Clinics 2003 13, 135-145DOI: (10.1016/S1052-5157(02)00113-7)

Color Plate 5 Acute thermal lesion within human gastric cardia. Patient treated under human subjects protocol several hours before esophagogastrectomy for midesophageal adenocarcinoma. Thermal lesion within circular muscle, with overlying intact mucosa (See also Fig. 6 in article by Utley.) Gastrointestinal Endoscopy Clinics 2003 13, 135-145DOI: (10.1016/S1052-5157(02)00113-7)