| Nissen's operation | Mobilization of the lower end of the oesophagus and plication of the fundus of the stomach around it (fundic wrapping) in the treatment of gastroesophageal reflux that may be associated with various disorders, such as hiatal hernia. (12 Dec 1998) |
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| Norton's operation | Extraperitoneal cesarean section by a paravesical approach. (05 Mar 2000) |
| Norwood's operation | In infants with subaortic stenosis and tricuspid atresia; the pulmonary artery is divided and both ends are attached to the aorta, the distal end via a prosthetic graft. (05 Mar 2000) |
| Dana's operation | Section of posterior spinal root. Synonym: Dana's operation. (05 Mar 2000) |
| Dandy operation | More specifically see: third ventriculostomy, trigeminal rhizotomy. (05 Mar 2000) |
| Daviel's operation | Extracapsular cataract extraction. (05 Mar 2000) |
| debulking operation | Excision of a major part of a malignant tumour which cannot be completely removed, so as to enhance the effectiveness of subsequent radio-or chemotherapy. (05 Mar 2000) |
| Syme's operation | Amputation of the foot at the ankle joint, the malleoli being sawed off, and a flap being made with the soft parts of the heel. Synonym: Syme's operation. (05 Mar 2000) |
| Doyle's operation | Paracervical uterine denervation. (05 Mar 2000) |
| Dupuy-Dutemps operation | A modified dacryocystorhinostomy for stenosis of the lacrimal duct. (05 Mar 2000) |
| Indian operation | Rhinoplasty utilizing a flap from the forehead. Synonym: Carpue's method, Indian method, Indian operation. (05 Mar 2000) |
| interval operation | An operation performed during a period of quiescence or of intermission in the condition necessitating surgery. (05 Mar 2000) |
| Italian operation | Italian method rhinoplasty utilizing a flap from the arm. Synonym: Italian method, Italian operation, tagliacotian operation. (05 Mar 2000) |
| Ogston-Luc operation | An operation for frontal sinus disease; a skin incision is made from the inner third of the edge of the orbit toward the root of the nose or outward; the periosteum is pushed upward and outward, and the sinus is opened on the outer side of the median line; then a wide opening is made by curetting the nasofrontal duct, interior of the sinus, and anterior ethmoid cells. (05 Mar 2000) |
| Ogura operation | Orbital decompression by removal of the floor of the orbit through an opening made in the supradental (canine) fossa. (05 Mar 2000) |