Biomedical subjects

C Ruiz

Publications and source records attributed to C Ruiz.

165 records · Page 10Linked to original sources

PubMedDate not supplied

[Mastoid obliteration in open cavities].

The obliteration of a large or irregular mastoidectomy cavities with hard-to-control areas is a common problem for ENT surgeons. Numerous obliteration techniques have been proposed in the last 50 years. We report our experience of obliteration of mastoid cavities in 74 ears using autogenous mastoid cortical bone chips and rib cartilage. Our procedure, a partial obliteration with meatoplasty, has yielded good results. Almost 92% of these ears were dry three years after surgery. There were no cases of recurrent cholesteatoma between bone chips.

Cartilage↗

PubMedDate not supplied

[Superselective vagotomy of parietal cells. Evaluation and results in duodenal ulcer].

The authors present a study carried out jointly by the Gastroenterology Service and Surgical Service No. 2 of the General Hospital of the Venezuela Institute of Social Security "Dr. Ildemaro Salas". The results and objectives of the operation are analyzed insisting on its lower morbility and mortality, as well as on the lower incidence of diarrhea, dumping and other gastrointestinales discomforts. The first operation was performed on 17 november 1971 and up to the present 74 patients have been operated, 65 for duodenal ulcers, 7 for esophageal hernia of the hiatus, 1 case of hemorrhagic gastritis, and 1 case of prepyloric ulcer. Some details are given of the operations, the indications for it are pointed out, specially gastric hyperacidity, symptomatic ulcer, and absence of duodenal stenosis. There were 7 post-operative complications and 2 cases of mortality. As to the results there are presented 92% successful interventions and 8% failures.

Duodenal Ulcer↗

PubMedDate not supplied

[Trans-canal mastoidectomy].

UNLABELLED: The controversy regarding the best procedure for treating middle ear cholesteatoma has lasted over 100 years. This paper discusses our current methods for dealing with cholesteatoma, always through external ear or transmeatal mastoidectomy. We present the results of three years of follow-up. MATERIAL AND METHODS: A prospective study was made of 215 ears operated for cholesteatoma using a transcanal approach with one of three techniques: "on demand" DAA mastoidectomy, modified radical mastoidectomy, and radical mastoidectomy with obliteration. Three parameters were used to evaluate results: stability of the mastoid cavity, integrity of the neotympanum, and evolution of hearing. RESULTS: The rate of cholesteatoma recurrence in ears operated with these techniques was much lower than that found in canal-wall-up techniques. Only 3 of the 215 cases (1.4%) remained unstable due to different causes three years after surgery. DISCUSSION AND CONCLUSIONS: Due to the high rate of cholesteatoma recurrence, canal-wall-up mastoidectomy has been abandoned in our clinic. Open techniques using a transmeatal approach, with or without obliteration, and the so-called "on demand" mastoidectomy, have yielded more stable results, although postoperative care is more critical.

Cholesteatoma, Middle Ear↗