Copper fragment was introduced into the vitreous body of fourteen albino rabbits through the scleral incision at equatorial region. Both photopic and scotopic ERGs were recorded for 30 days thereafter stimulated by the electronic photoflash of 2 msec duration.The changes in scotopic b-potential were roughly classified into 3 types. The first type (5 eyes) showed acute, severe reduction, extinguishing from 6 to 24 days. The second type (3 eyes) was characterized by the absence of any remarakble changes during the whole observation period, the final b'potential being 82,4% of the original value. In the third type (6 eyes), the b-potential decreased gradually and 24.3% of the pre' operative value was attained after 30 days. The latent time and the implicit time of the b-potential increased proportionally to the reduction of the b-wave. The scotopic a-wave behaved parallel to the b-wave, and in later stage, negative (-) type of ERGs were frequently encountered. The photopic a- and b-waves changed in the similar way as the scotopic a- and b-waves, respectively. The slitlamp biomicroscopy and ophthalmoscopy revealed the fibrous tissue proliferation around the copper fragment in relatively early stage. When the proliferation progressed and extended into the vitreous body, ERG showed reduction in b-potential, and sometimes increase in b-potential was noted In cases in which connective tissue encapsulated the copper and did not extend into the vitreous body, ERG changes were much milder and slower. In histological sesctions performed 2 weeks and 3 weeks after the insertion of copper fragment, the degeneration of the retina began both in the visual cell layer and ganglion cell layer almost simultaneously. When the ERG was extinguished, the retinal tissue showed complete destruction.
Connective Tissue ; Copper* ; Ganglion Cysts ; Ophthalmoscopy ; Rabbits ; Retina ; Retinaldehyde ; Vitreous Body

A clinical review was done on 343 infants and children diagnosed and operated at the Department of Pediatric Surgery in Keimyung University, Dong San Medical Center for congenital gastrointestinal anomalies from January, 1988 to December, 1991. The results are summarized as follows; The most prevalent age group of congenital gastrointestinal anomaly was within first week after birth, and infants within 3months occupied 70% of total, and male to female ratio was 2:1. 2) The moat common lesion of congenital gastrointestinal anomalies was stomach with 87cases (25.4%), followed by anus with 80 cases (23.3%), colon with 63 cases (18.4%) and biliary tract with 38 cases(11.1%). 3) The most common congenital anomaly was congenital hypertophic pyloric stenosis with 87 cases (25.4%), followed by imperforate anus with 70 cases (20.4%), congenital megacolon with 63 cases (18.4%), and prevalent age was 2 week-3month, first week after birth, 1month-3year. 4) The incidence of common congenital gastrointestinal anomalies were mostly higher in male than in female but choledochal cyst was higher in female than in male. 5) Associated anomalies were observed in 14 cases (4%) of total cases, duodenal atresia was seen the highest rate of the associated anomalies and the most common associated anomaly was annular pancreas, followed by Down syndrome, congenital diaphragmatic hernia.
Anal Canal ; Anus, Imperforate ; Biliary Tract ; Child ; Choledochal Cyst ; Colon ; Down Syndrome ; Female ; Hernia, Diaphragmatic ; Hirschsprung Disease ; Humans ; Incidence ; Infant ; Male ; Pancreas ; Parturition ; Pyloric Stenosis ; Stomach

No abstract available.

Endoscopic retrograde cholangiopancreatography(ERCP) procedures are more difficult in patients who have undergone partial gastrectomy with Billroth II anastomosis. Because its altered anatomical relationship. the endoscopist is presented with additional problems: (i) Dfficulties in entering the afferent loop, depending on the surgical techiques used. (ii) The endoscope may be too sort to reach the papillary region unless the loops are suecessfully straightened out. (iii) Difficulties in passing the ligament of Treitz, especially in patients with Braun's anastomosis, (iv) Problems in cannulating the papilla and especially the common bile duct from a reversed position. (v) Problems in carrying out a papillotomy in a correct position. We attempted endoscopic sphincterotomy in 3 opatients previously subjected to gastrectomy with needle knife, and succeeded in 2 of them. In the two patients, successful billary drainage was achieved. And one patients with Billroth II gastrectomy, presented with CBD stone and cholangit, was successfully treated with endoscopic stone retriveial. The patient with a Billroth-II operation may unergo endscopic diagnostic as well as therapeutic procedures with a high rate of success, and can be suitable candidates for ERCP and endoscopic sphincterotomy
Cholangiography* ; Cholangiopancreatography, Endoscopic Retrograde ; Common Bile Duct ; Drainage ; Endoscopes ; Gastrectomy* ; Gastroenterostomy* ; Humans ; Ligaments ; Needles ; Sphincterotomy, Endoscopic

No abstract available.
Female ; Humans ; Pregnancy* ; Pregnant Women*

No abstract available.
Child* ; Endoscopy* ; Humans

No abstract available.
Pregnancy*

No abstract available.
Family Practice* ; Follow-Up Studies* ; Humans ; Internship and Residency*

PURPOSE: To evaluate the significance of color Doppler ultrasonography in patients of chronic prostatitis. MATERIALS AND METHODS: We analysed the pattern of color Doppler images and quantitative changes of vascular flow and flow velocity parameters(FVP) using a 7.0 MHz transrectal probe with findings of expressed prostatic secretion (EPS) from 22 patients with clinically suspected chronic prostatitis and 12 controls with clinically suspected prostatodynia retrospectively. RESULTS: Compared with 2 groups according to color Doppler flow grade, higher grades(grade 2 or 3) of flow increase were more frequently seen in prostatitis group(54.5%) than in control group(33.3%)(p <0.05). But no significant difference was found in flow velocity parameter(FVP: maximal flow velocity, minimal flow velocity, resistive index, and pulsatility index) between control and prostatitis group. Two months later follow up ultrasonography of 5 cases in the prostatitis group after treatment, all of 5 cases showed decrease the color Doppler flow compared with the initial color Doppler image grade. CONCLUSIONS: Grading of the amount of color flow with Doppler ultrasonography is of limited significance at efficacy decision after treatment in chronic prostatitis. But precaution should be taken to use color Doppler ultrasonography as objective diagnostic tool, although higher grades of flow increase were more frequently seen in prostatitis group than control group.
Follow-Up Studies ; Humans ; Prostatitis* ; Retrospective Studies ; Ultrasonography ; Ultrasonography, Doppler ; Ultrasonography, Doppler, Color*

Remnant thyroglossal ducts are common developmental abnormalities of the thyroid gland. The malignant transformation of these structures is extremely rare. Even though a malignancy it is highly suspected in elderly patients with midline neck swelling, the diagnosis is seldom made preoperatively. In thyroglossal duct carcinomas, a papillary carcinoma is the most common pathologic finding. The etiology of such tumors is unclear, but a de novo origin and spread from primary thyroid-gland tumors has been suggested. There are different theories regarding the origin of and the therapy for these malignancies. This has important significance for therapeutic approaches. We report a case of a papillary cancer arising in a remnant thyroglossal duct which was managed by Sistrunk's operation and right thyroid lobectomy.
Aged ; Carcinoma, Papillary ; Diagnosis ; Humans ; Neck ; Thyroid Gland