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Biomedical subjects

M Savary

Publications and source records attributed to M Savary.

At least 37 records · Page 2Linked to original sources
PubMed1989

[Epidermoid carcinoma of the esophagus: preliminary results of combined treatment].

In 1986, a prospective study was started in CHUV on the squamous-cell carcinoma of the esophagus treated with a multimodality protocol associating preoperative chemotherapy and surgery. Nineteen patients are currently followed-up. Dysphagia is the main symptom and was found in 16 patients (84%). After chemotherapy, dysphagia disappeared completely in 7 cases (44%), regressed in 7 other cases and worsened in 1 case. Twelve patients were operated on, without operative mortality. Histologically, no tumor was found in one case (5%) after the preoperative treatment. Follow-up is currently too short to draw statistical conclusions. The rationale, advantages and perspectives of the multimodality treatment are presented and compared with different recent series.

Antineoplastic Combined Chemotherapy Protocols↗
PubMed1989

[Surgical treatment of Barrett esophagus. Apropos of 110 cases].

One hundred and ten patients with Barrett's esophagus were operated on between 1963 and 1986. Preoperative endoscopy showed active peptic disease in 94% of the cases and a stenosis or ulcer in 61%. An anti-reflux operation was performed in 102 cases and a resection in 8 cases. Operative mortality was 3.6% and the morbidity was 9%. After an average follow-up of 6.9 years, 83% of the patients were satisfied with their operation. Postoperative endoscopy was performed in 39 patients after an average of 5.4 years. No progression or regression of the columnar epithelium was found. Two patients developed an adenocarcinoma in spite of adequate reflux control.

Adult↗
PubMed1988

Percutaneous transtracheal ventilation for laser endoscopic treatment of laryngeal and subglottic lesions.

Obstructive lesions of the larynx and subglottic space are always a challenging problem for the endoscopist and anaesthetist. At this level, the efficacy and innocuity of a carbon dioxide laser treatment are related to the degree of endoscopic exposure. Thanks to the transtracheal high frequency jet ventilator, it is now possible to assure a free laryngeal endoscopic operative field. The transtracheal catheter is introduced percutaneously through the cricothyroid membrane into the trachea under endoscopic control and connected to a high frequency jet ventilator. From November 1983 to April 1985, this technique has been used in 65 cases. In 12 cases, it was the only alternative to avoid a tracheostomy. The other indications were: laryngeal papillomatosis, resection of T1a cancers of the vocal cords, fibrous strictures secondary to long term intubation, laser arytenoidectomies and benign lesions of the vocal cords. Among many advantages, the following are the most convincing: clear vision of the operative field for the surgeon, complete relaxation of the patient, good respiratory gas exchange, elimination of the risk of ignition of an endotracheal tube by laser, decreased risks of broncho-aspiration of blood and debris, and the facility to provide oxygen and/or mechanical ventilation in the postoperative period. The only complication encountered was a case of cervico-mediastinal emphysema caused by displacement of the tracheal catheter.

Adult↗
PubMed1988

What energy level is required to avoid nutrient depletion after surgery in oropharyngeal cancer?

The rate of energy expenditure was repeatedly measured by indirect calorimetry both in the basal state (BMR) and in the resting fed state (RMR) in 8 middle-aged male patients operated for oropharyngeal cancer. In the postsurgical phase, two sequential energy levels were administered by nasogastric tube: (1) a 'maintenance' level (days 3-5) at 1.4 X measured presurgery BMR; (2) a 'supramaintenance' level (days 6-9) at 1.7 X measured BMR on day 6. Before surgery the patients had a BMR averaging (23.7 +/- 1.0 kcal/kg.day). After surgery BMR increased to 27.6 +/- 2.7 kcal/kg.day (day 6), then it decreased to 24.4 +/- 1.4 kcal/kg.day (day 10). The difference between RMR and BMR yielded a nutrient-induced thermogenesis averaging 5 +/- 1 and 8.5 +/- 2% (p less than 0.05) on levels 1 and 2, respectively. It is concluded that an energy level corresponding to 1.4 X presurgery BMR is sufficient to maintain energy and substrate equilibrium in nondepleted patients, whereas 1.7 X BMR induces positive protein and fat balances concomitant to a decrease efficiency of energy utilization.

Adult↗
PubMed1987

Percutaneous transtracheal ventilation for laser endoscopic procedures in infants and small children with laryngeal obstruction: report of two cases.

The case reports of two children with obstructive lesions of the larynx are presented to illustrate the advantages of transtracheal ventilation for paediatric endoscopic laser surgery. The first patient was a four-month-old infant with inspiratory stridor due to a subglottic haemangioma obstructing 80 per cent of the lumen. The second patient was a five-year-old child with posterior synechiae of the larynx. The anaesthetic and ventilation techniques were the same for both cases. A transtracheal catheter was introduced percutaneously into the trachea under endoscopic control and connected to a high frequency jet ventilator. The advantages of this technique during laser surgery are: clear vision of the operative field, good gas exchange, elimination of airway trauma from intubation, reduction of the hazard of airway fires, and decreased risk of aspiration of blood and debris. In addition, this method of providing oxygen and/or mechanical ventilation may be extended into the postoperative period. In certain situations, this technique can be an attractive alternative to a tracheostomy with its potentially dangerous and incapacitating complications in infants and small children.

Airway Obstruction↗
PubMed1987

[Precancerous conditions of the digestive system: true risk or a paper tiger? The esophagus].

The incidence of the squamous cell carcinoma of the esophagus shows geographical variations. As a rule it is found in heavy smokers and alcoholics. Multicentricity (mouth, hypopharynx, esophagus) is very frequent and accompanied by large dysplasias of different stages. The adenocarcinoma develops on the metaplastic cylindric epithelium of the Barrett esophagus. Positive dysplasias are highly suspicious of the development of a carcinoma and demand the reconfirmation of the finding by a second pathologist. In this case the resection of the esophagus has to be done. The abdominal-cervical method should be preferred.

Adenocarcinoma↗
PubMed1987

Combination of mitomycin, vindesine, and cisplatin in the treatment of head and neck squamous cell carcinoma.

Thirty patients with squamous cell carcinoma of the head and neck were treated with a combination of mitomycin (10 mg/m2, Day 1), vindesine (3 mg/m2, Days 1 and 8), and cisplatin (60 mg/m2, Day 1), repeated every 28 days. Seven patients were previously treated by surgery, radiotherapy, or chemotherapy, and 23 had untreated advanced tumors. Objective responses were seen in 17 of 27 evaluable patients (63%), with three (11%) complete remissions. Moderate myelosuppression was the main toxic effect. Considering the advanced tumor staging (54% N3 tumors), this chemotherapeutic regimen appears as effective as other cisplatin-based chemotherapies.

Adult↗
PubMed1986

[Epidermoid cancer of the upper respiratory and digestive tracts].

Early diagnosis of cancer of the upper aerodigestive tract is possible provided that high risk patients are recognized and their symptoms correctly interpreted, screening endoscopy of the whole squamous cell oropharyngo-oesophageal mucosa and of the tracheo-bronchial tree is performed in every high risk patient presenting the slightest symptoms related to the upper aerodigestive tract, the general practitioner is aware of the limits and pitfalls of the various possible investigation methods (barium swallow, CAT, fine needle biopsy of lymph-nodes, and endoscopy).

Biopsy, Needle↗
PubMed1986

[Barrett's ulcer: myths and realities].

Barrett's ulcer, a rare disease of elderly patients, is not a precancerous condition. It has a marked tendency to bleed but not to perforate. It seems to develop in the squamous epithelium of the lower esophagus and not in the columnar epithelium of the endobrachy esophagus.

Aged↗
PubMed1985

[Barrett esophagus. Retrospective study of 258 cases].

Barrett's esophagus, nearly always an acquired disease, is neither rare nor a curiosity, having been diagnosed in 258 out of 2573 patients with reflux esophagitis. It was associated with esophageal adenocarcinoma in 29 cases (11.2%) and with non-esophageal cancer in 72 cases (27.9%).

Adenocarcinoma↗