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Biomedical subjects

E T Edens

Publications and source records attributed to E T Edens.

27 records · Page 2Linked to original sources
PubMed1975

Effect of premedication on stress and plasma cortisol in patients bronchoscoped under local anaesthesia.

Four groups of 8 patients undergoing bronchoscopy were premedicated with either pentobarbitone 1 mg/kg i.m. followed by i.v. saline, or diazepam 10 mg and saline i.v., or diazepam 10 mg i.m. followed by diazepam 20 mg i.v. and, diazepam 20 mg i.m. and then saline i.v. Both the patients and the bronchoscopist were asked to score the premedication as excellent, satisfactory, unsatisfactory or bad. Plasma cortisol was measured before premedication and before and after bronchoscopy. Preoperatively plasma cortisol increased in every group except that given diazepam 20 mg i.m., and during bronchoscopy it rose in all except the group who received 20 mg diazepam i.v. In patients who considered the premedication unsatisfactory, the rise in plasma cortisol from before premedication until after bronchoscopy was significantly higher than in satisfied subjects. It appears that in patients undergoing bronchoscopy higher doses of diazepam (20-30 mg) gave better suppression of stress than 10 mg diazepam, or 1 mg/kg pentobarbitone.

Adult↗
PubMedDate not supplied

Insufflation esophagoscopy.

A new electroscope has been designed from the conventional Haslinger tubes. The new rigid scope combines the advantage of air insufflation in the flexible system with the therapeutic possibilities of the rigid tubes and is trustworthy in the following esophageal procedures; a) finding entrance of severe strictures; b) introducing nasogastric feeding tubes; c) extraction of foreign bodies; d) tumor coagulation/spur in hypopharyngeal diverticuli; e) washing and suction in cases with severe food retention; f)making tumor smears in patients with clotting disorders; g) taking substantial biopsies with an optical forceps, and h) objective photodocumentation of esophageal pathology.

Esophagoscopes↗
PubMedDate not supplied

Flexible fiberoptic endoscopy in difficult intubations.

Intubation problems sometimes occur very suddenly and can be divided into two groups. The expected ones include the patients with a short neck and long teeth, cellulitis of the tongue, large oropharyngeal tumors, obstructing laryngeal tumors, congenital and acquired maxillofacial deformities, ankylosis of the temporomandibular joints, fractures or ankylosing spondylitis of the cervical spine, and all patients with a history of previous intubation problems. Unexpected problems can arise in patients who combine large incisors and canines with an inability to open the mouth wide, or when the glottis is invisible because the epiglottis is immobile. The first concern in these cases is to restore consciousness, for the conscious patient shows tonus and this facilitates identification of anatomical landmarks. A 60 cm bronchofiberscope provided with a tube and a freely movable end of 30 cm is suitable. Shorter flexible scopes are not adequate.

Bronchoscopes↗
PubMedDate not supplied

A simple endoscopic intubation technique in esophageal obstruction.

Endoscopic intubation was effected in 42 cases of malignant esophageal stenosis during the period 1979-1981. The stenosis was dilated with the aid of thermoplastic probes passed through a rigid esophagoscope of sufficient length, whereupon a tube was introduced under endoscopic control and left in situ in the malignant stricture. This "rigid" technique is suitable for process confined to the esophagus. Introduction of the tube requires adequate endoscopic skill and is not devoid of risk. Perforation, the gravest risk, occurred in two cases. Proximal tube migration was observed in five patients.

Esophageal Neoplasms↗
PubMedDate not supplied

Microendoscopic surgery of the hypopharyngeal diverticulum using electrocoagulation or carbon dioxide laser.

In 1964 we started to treat hypopharyngeal (Zenker's) diverticular endoscopically, using the procedure described by Dohlman. With the increase in the number of patients (274 patients up until 1982), the technique and the instruments used have improved. This paper describes the technique we have used since 1981, which involves exposure of the tissue bridge between esophagus and diverticulum with the aid of a specially designed scope and subsequent severance of this bridge under microscopic control. In 12 cases the bridge was severed by electrocoagulation, while the CO2 laser was used for this purpose in another 12 cases. Both techniques have given good results. Essential advantages or disadvantages of either of these methods could not be elicited. We regard the use of an operating microscope as a great improvement.

Diverticulum↗