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At least 19 recordsLinked to original sources
PubMedDate not supplied

[Comparison of the results of sclerotherapy of esophageal varices using a rigid esophagoscope and fiber-optics esophagoscope].

The authors compared the results of 20 emergency and 100 elective varicosclerotisations with rigid esophagoscope and the same number of obliterations with the use of esophagofiberoscope. Haemorrhage was stopped in 90% of patients injected through the rigid esophagoscope and in 80% of patients in whom esophagofiberoscope was used. Hospital mortality rate in patients with bleeding esophageal warices was 25% in both groups. Complications were seen in 4.2% of procedures carried out with the rigid esophagoscope, and 5.8% of obliterations with esophagofiberoscope. The authors recommend rigid esophagoscope for emergency sclerotherapy and for the initial 2-3 series of injections in patients with large varices. Esophagofiberoscope is prefered in case of repeated, elective varicosclerotisations, first injections and recurrence of esophageal varices following obliterative therapy.

Adolescent↗
PubMed1975

[Discrepant findings between esophagoscopical and x-ray examination on the search for varicose veins of the esophagus (author's transl)].

In a comparising study of 191 liver-patients, who were laparoscopical and most of them histological examined, the results of registrated varicose veins of the esophagus by x-ray and fiber-esophagoscopical examination were compared. Between x-ray and esophagoscopical examination in our material was a discrepancy in 29,3% of the cases (suspect findings were counted positive). The question was posed, if the premedication with spasmolytical substances and tranquillizers gives the wellknown advantages for the esophagoscopical examination compared with the x-ray examination by relaxation of the esophaguswall and thereby combined with a better visuability of the varicose veins. In the proposed analysis showed still 19,9% of the cases a positive result by esophagoscopical examination by negative x-ray finding, and there was only in 9,4% of the cases a positive finding by x-ray examination by simultaneous negative esophagoscopical result. Other comparising studies by equal pharmacological conditions (premedication!) are urgently necessary to get better results of examination and perhaps to eliminate or at least reduce the discrepancies between endoscopical and x-ray examination.

Diagnostic Errors↗
PubMed2003

A prospective, blinded study of diagnostic esophagoscopy with a superthin, stand-alone, battery-powered esophagoscope.

OBJECTIVES: A more widely available, well-tolerated, and cost-effective technique is needed to screen a broad population at risk for esophageal cancer. An ideal solution might be to perform unsedated esophagoscopy with an entirely self-contained, small-caliber endoscope. In a prospective, blinded study in three phases, we compared the feasibility, patient tolerance, and diagnostic accuracy of esophagoscopy performed with a prototype, superthin, battery-powered esophagoscope (BPE) with standard video esophagogastroduodenoscopy (SVE). METHODS: In phase I, 10 healthy volunteers underwent both peroral and transnasal esophagoscopy with BPE to evaluate the technical feasibility of the examination. For phases II and III, patients were recruited to have BPE before SVE. In phase II, both procedures were performed with conscious sedation. In phase III, the BPE was performed with only topical anesthesia. Two endoscopists assessed the technical performance of the endoscope and patient tolerance and recorded the esophageal findings independently. RESULTS: In phase I, all endoscopists reported adequate visualization of the esophagus in the 10 volunteers. A total of 181 patients were evaluated in phases II and III (89 in phase II, 92 in phase III). The sensitivity for detecting columnar lined esophagus was 94% in phase II and 95% in phase III. The sensitivity for all esophageal findings was 87% and 86% in phases II and III, respectively. The technical performance of the endoscope was significantly worse for BPE compared with the SVE. The patient tolerance as evaluated by the endoscopist was similar for both procedures. Ninety-five percent of the patients undergoing unsedated BPE were willing to have the procedure repeated under similar circumstances. CONCLUSIONS: Unsedated esophagoscopy with a 3.1-mm, battery-powered, stand-alone esophagoscope is feasible, well tolerated, and accurate in detecting esophageal pathologies. It might be an efficient and cost-effective screening tool for the detection of columnar lined esophagus.

Adult↗
PubMed2005

Extensive circumferential endoscopic mucosal resection with a new rigid esophagoscope: an animal study.

OBJECTIVE: Current endoscopic mucosal resection techniques are suboptimal for large circumferential mucosal resections intended to treat Barrett mucosa with multicentric foci of high-grade intraepithelial neoplasia or early adenocarcinomas. A rigid modified endoscope was developed for extended endoscopic mucosal resection in the esophagus. This pilot animal study investigated the feasibility of circumferential endoscopic mucosal resections of different lengths in the sheep esophagus. METHODS: Circumferential esophageal endoscopic mucosal resections of 2.2 cm (n = 6), 3.3 cm (n = 6), 4.4 cm (n = 7), and 5.5 cm (n = 5) were performed in 24 sheep. Circumferential resections consisted of two opposite hemicircumferential mucosectomies. Animals were followed up with endoscopic examinations at 1 week and then monthly to 6 months, or until complete re-epithelialization without stenosis eventually ensued. Strictures were treated with a single or repeated dilatations with Savary bougies. RESULTS: Circumferential resections 2.2 to 5.5 cm in length were successfully performed in 23 of 24 of the animals. One perforation occurred directly after mucosectomy. Accurate depth of resection through the submucosa was obtained in 85% of the specimens. Cicatricial stenosis was controlled in 95% by bougienage. CONCLUSION: Endoscopic mucosal resection performed with the rigid esophagoscope allowed extensive circumferential resections in a single session. There is thus potential to eradicate complete Barrett esophagus with high-grade intraepithelial neoplasia or early adenocarcinomas.

Animals↗
PubMed2005

The relationship between esophagoscopic findings and total acid reflux time below pH 4 and pH 5 in the upper esophagus in patients with laryngopharyngeal reflux disease (LPRD).

OBJECTIVE: : To investigate the relationship between esophagoscopic findings and total acid reflux time in the upper esophagus in the patients of laryngopharyngeal reflux disease (LPRD), and to evaluate whether pH<5 holding time is appropriate for diagnosing LPRD. METHOD: : Esophagoscopy and 24-h pH monitoring in the upper esophagus were performed in 29 patients suspected of LPRD and 19 healthy volunteers participated as controls. The total acid reflux times below pH 4 and 5 in the upper esophagus were compared between the LPRD group and the controls. The LPRD group was divided into LPRD with reflux esophagitis (RE) and LPRD without RE, and the total acid reflux times below pH 4 and 5 of these two groups were compared. RESULTS: : Eight of the 29 (27.6%) LPRD patients had reflux esophagitis. The LPRD group showed a significantly longer acid reflux time than the control group at pH below 5 (P=0.009) but not at pH below 4 (P=0.48). The LPRD with RE had significantly longer acid reflux times below both pH 4 and 5 in the upper esophagus compared to those of the LPRD without RE. The P values using a cut-off value of pH 5 were smaller than that of pH 4 in all statistical results. CONCLUSION: : The LPRD patients showed significantly longer acid reflux time in the upper esophagus than the control group. In the LPRD group, the LPRD with RE patients had more frequent acid exposure in the upper esophagus than the LPRD without RE. A pH level of 5 could be appropriate as a cutoff level for the diagnosis of LPRD in upper esophagus pH monitoring.

Case-Control Studies↗
PubMed2004

[Determination of arsenic in As2O3-treated esophagoscope-transplant mouse tissue by graphite furnace atomic absorption spectrometry].

As2O3 was injected into tumour tissue of esophagoscope-transplant mouse. The concentration of As diffusing into other tissues was investigated. A method was proposed for the determination of As in tissue samples of mouse by graphite furnace atomic absorption spectrometry. After wet digestion (water-bath at 80 degrees C) with 2:1:1 (psi) of HNO3-H2SO4-HClO4, the digested tissue samples of mouse were diluted with 0.2% Triton X-100-0.4% AgNO3. The matrix-matching calibration curve of non-interference was established with standard addition method. The relative standard deviation was 3.2%-8.7%. The limit of detection was 1.57 microg x L(-1). The recoveries were 81.7%-105% Arsenic concentrations in mouse liver, kidney, brain, left-chest, and right-chest were determined after injection of arsenic at different times.

Animal Feed↗
PubMed1978

[Reflections on the technique of inserting the esophagoscope (author's transl)].

Due to the muscular attachments of the hyoid bone to the posterior part of the base of the skull, and the larynx to the sternum, the larynx will be pressed posteriorly against the vertebral column if the head is kept in a reclined position. This causes a greater resistance when trying to open the hypopharynx with the esophagoscope. If, however, the head is held forward, this resistance will be considerably reduced.

Esophagoscopy↗
PubMed1990

Method of endoscopic esophageal intubation using a rigid esophagoscope.

Endoscopic intubation of malignant esophageal strictures carries a substantial risk of esophageal perforation. We have developed a method of endoscopic intubation that reduces to a minimum the elements of the procedure that have to be performed "blind." The use of this method has been associated with a reduction in perforation rates when compared with other series.

Equipment Design↗