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Biomedical subjects

T J Yu

Publications and source records attributed to T J Yu.

At least 55 records · Page 3Linked to original sources
PubMed1990

[Results of vascular reconstruction in lower limbs ischemia: a six-year clinical experience].

During the period between Dec. 1982 to Nov. 1988, a total of 412 patients with 471 limbs at risk of peripheral arterial occlusive disease underwent vascular surgical treatment at the Veterans General Hospital. There were 382 men and 30 women, who ranged in age from 20 to 84 years (mean 63.17 +/- 11.85 years). 95 cases were isolated aortoiliac occlusive disease, 94 cases were combined aortoiliac and femoropopliteal disease, 169 cases were femoropopliteal occlusive disease and 54 cases were femorotibialperoneal occlusive disease. Various reconstructive procedures were performed in the these patients. The cumulative limb salvage rate (LSR) exceeded cumulative patency rate (CPR) in all categories and the result of LSR and CPR were 97.6% and 91% for aortoiliac reconstructive surgery in six years, 96% and 77% for above-knee femoropopliteal saphenous vein bypass (SVB) in six years, 79% and 74% for below-knee femoropopliteal SBV and 63% and 34% for femoro-distal SVB in five years. 88% and 76% for above-knee femoropopliteal human umbilical vein (HUV) bypass in four years. 67% and 45% for femoro-distal HUV bypass in three years follow-up period individually. The immediate good symptomatic results of the vascular reconstruction was 88% encountered in isolated aortoiliac disease, 63% in combined aortoiliac and femoropopliteal disease, 70.4% in isolated femoropopliteal disease and only 26% in femorotibial-peroneal disease (FTP). No change symptoms was still higher (33%) in FTP than the other vascular reconstruction due to poor distal runoff in this series. The early postoperative mortality rate was 1.6%, the late mortality rate was 2.7%, the incidence of postoperative complication rate was 13.6%. The major lower limb amputation rate was low as 7% in our series.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1990

Diagnostic value of glycosylated hemoglobin in intravascular hemolysis after cardiac surgery.

Glycosylated hemoglobin (GH), hemoglobin (Hb), hematocrit, LDH and serum bilirubin were measured pre-operatively, and 1-10 days and 11-42 d post-operatively in 42 patients undergoing cardiac surgery. Their mean age was 39.90 years, ranging from 4 to 68 yr. In the early post-operation days, Hb and hematocrit, but not GH percentage, were significantly decreased. This demonstrates that, at this stage, acute blood loss rather than hemolysis is more prominent. In the later post-operative days, GH, but not Hb or hematocrit, decreased significantly. This indicates the presence of chronic hemolysis with bone marrow compensation. In our study, the incidence of chronic mild hemolysis after cardiac surgery was very high (68.8%). We conclude that GH determination is a simple, easy and sensitive method to detect chronic hemolysis and we suggest measuring it in every case with suspicion of hemolysis.

Adolescent↗
PubMed1989

[A new operation for the management of gastric varix bleeding].

Gastric varices is a special oriental type manifestation of gastroesophageal collaterals in portal hypertension patients. It has gained more attention in recent years following the popularity of endoscopy and sclerotherapy. Catastrophic bleeding from ruptures of gastric varices is a life threatening emergency. Gastric varices are generally located at the greater curvature side of the cardiofundic region. Neither a Sengstaken-Blakemore balloon tube nor a Linton balloon tube can stop the bleeding. This area is also beyond the field of sclerotherapy. Surgery is the only definite therapy. Devascularization procedures as described by Dr. Hassab sometimes fail to control active bleeding and also fail to adequately decongest the whole varices area. The radical resection procedures such as terminal esophagectomy, proximal gastrectomy or cardiectomy as proposed by Japanese groups interrupts the normal esophgo-gastric continuity and is also too invasive for a cirrhotic patient. In between, besides terminal esophago-proximal gastric devascularization and splenectomy, we use a TA-90 stapler to perform an oblique cardiofundectomy to resect en bloc the tortuous gastric varices area. From Nov. 1983 to May 1988, at the Veterans General Hospital-Taipei, 16 patients received this new operation to manage gastric varices bleeding. Ten of them were on an emergency basis and 6 were elective surgery. Only one patient in the emergency group died. All catastrophic bleeding in the emergency group was dramatically controlled and all other patients recovered rapidly. With a follow-up range from 6 months to 4.5 year and an average of 19 months, there was no recurrent bleeding and no hepatic encephalopathy.(ABSTRACT TRUNCATED AT 250 WORDS)

Esophageal and Gastric Varices↗
PubMed1988

Huge splenic artery aneurysm after portocaval shunt.

A 64-year-old man with cirrhosis of the liver had a palpable, pulsatile palm-size mass over the upper abdomen. Splenic artery aneurysm was diagnosed by sonography, computed tomography scan, and celiac angiography. Operative findings showed a huge splenic artery aneurysm (20 X 30 X 20 cm) over the middle portion of the splenic artery. Such a huge splenic artery aneurysm may develop because changes in splenic circulatory dynamics after a portocaval shunt, resulting in compression of the splenic vein and congestive splenomegaly.

Aneurysm↗
PubMed1987

Postoperative deep vein thrombosis in the Taiwanese Chinese population.

Reports of the incidence of postoperative deep vein thrombosis in the Chinese population of Taiwan are few in the literature. Over a 3 year period, the fibrinogen degradation products test, the pulse volume recorder, and venography were used to study 220 patients undergoing major operations at the Veterans General Hospital in Taipei, Taiwan. Deep vein thrombosis was found in 17 patients (7.7 percent). A comparison of the three diagnostic methods showed that the sensitivities of the fibrinogen degradation products test and the pulse volume recorder were 56.3 percent and 93.7 percent, respectively; the specificities, 97.4 percent and 95.7 percent, respectively; and the accuracies, 85.5 percent and 95.5 percent, respectively. These results support the combined use of the fibrinogen degradation products test and the pulse volume recorder for screening and diagnosing deep vein thrombosis.

Female↗
PubMed1986

Circumscribed endometrial stromatosis of the uterus with marked epitheliogenesis.

A 75-year-old female suffered from continuous abnormal genital bleeding; endometrial biopsy was interpreted as stromal hyperplasia. Simple total abdominal hysterectomy with bilateral salpingo-oophorectomy was performed. A circumscribed tumor covered by atrophic endometrium was found in the uterine fundus, bulging into the endometrial cavity; histological pictures revealed endometrial stromatosis with marked epitheliogenesis having a papillary formation and sex-cord-like differentiation. No recurrence or metastasis was detected postoperatively.

Aged↗
PubMed1986

Isolated well-formed intestinal tissue in the umbilical cord. A variant of cyst of omphalomesenteric duct.

An extremely rare abnormality, a variant of omphalomesenteric duct, was observed in the umbilical cord 1 cm from the entry point into the abdominal wall, which itself was as an isolated mass of well-formed intestinal tissue free of structural defects. This intestinal tissue seems to be the remnant of an intestinal loop from caudal limb of midgut following physiological herniation during the third month of gestation.

Adult↗
PubMed1986

Malignant endometrioid adenofibroma of the ovary with serous cystadenoma.

This is a case report of malignant endometrioid adenofibroma of the ovary with serous cystadenoma in a 42-year-old female. It was classified as FIGO serous IA (2) ovarian tumors. Serous epithelium transformation into endometrioid glandular epithelium was disclosed. The patient is now in good condition and followed-up periodically.

Adenofibroma↗
PubMed1986

Endolymphatic stromal myosis of the uterus with metastasis to ovary and recurrence in vagina.

A 24-year-old woman underwent a supracervical hysterectomy with findings of an endolymphatic stromal myosis (ESM) with vascular invasion as a submucosal tumor of the uterine fundus. Four years later, metastasis of ESM in the right ovary was found after salpingo-oophoréctomy. Parametrial masses and a tumor infiltrated cervical stump revealed the same structure of ESM after operation. Though subtotal excision of the pelvic and vaginal recurrences nine years after the first operation for ESM and in spite of oral administration of danazol and duphaston (hydrogesterone), a recurrent vaginal tumor developed after the fourth operation and local application of chemotherapy with 5-fluorouracil was given. At present, the patient's condition is stable without distant metastasis.

Adult↗
PubMed1986

Malignant clear cell cystadenoma of the ovary.

A 50-year-old female had suffered from abdominal distension and a lower abdominal mass for 3 months. Ultrasonographic examination demonstrated a myoma uteri pattern with a large cystic ovarian tumor. Laparotomy was done on August 30, 1983 and simple total hysterectomy with bilateral salpingo-oophorectomy was carried out. FIGO stage IIC ovarian cancer was stated clinically. Histologically, clear cell cystadenoma of right ovary having benign, proliferative and malignant epithelial elements without dense ovarian stroma was found and diagnosed as malignant clear cell cystadenoma. In spite of Cisplatin therapy, the patient expired on April 6, 1984.

Ascites↗
PubMed1986

Uterine tumor resembling ovarian sex-cord tumor with osteoid metaplasia.

A rare uterine tumor showing sex-cord-like differentiation and marked osteoid metaplasia was found in a 33-year-old female. The tumor, occupying the uterine fundus, was multilobular, fleshy, and yellowish white, with punctations and poorly defined tumor margins into the subserosa. The tumor nodules were mostly composed of small, round, rather regular neoplastic cells with scanty cytoplasm and prominent nuclei. Epithelioid neoplastic cells with striking ovarian sex-cord-like arrangement, surrounded by fibrous tissue, were noticed. Polygonal neoplastic cells with marked osteoid metaplasia were also detected. The authors introduce an infrequent variant of uterine tumor resembling ovarian sex-cord tumor with osteoid metaplasia, probably of endometrial stromal cell origin. Because of deep myometrial infiltration without vascular invasion, malignant potential is considered. The patient is now alive without evidence of local recurrence or distant metastasis after abdominal total hysterectomy.

Adult↗
PubMed1985

A cystic adenomatoid tumor of the uterus simulating lymphangioma grossly.

We are reporting a rare case of an adenomatoid tumor of the uterus having multicystic gross appearance. A 32-year-old woman complaining of dysmenorrhea had multicystic mass lesions on the posterior wall of the right cornual region of the uterus. The specimen showed a honeycomb appearance with mucoid content. Microscopically, numerous gland-like spaces lined with low cuboidal cells were observed beneath the serosa, and mucopolysaccharide material accumulated in the cystic spaces forming, honeycomb-like lesions surrounded by myometrial tissue. The postoperative course was uneventful and the patient was discharged on the 9th day after the operation. "Cystic adenomatoid tumor of the uterus" was diagnosed. The patient is being followed up continuously, so far without recurrence.

Adenoma↗
PubMed1985

Proliferative Brenner tumor of the ovary.

A 72-year-old woman was admitted with abdominal distention and a hard mass in the pelvis. Abdominal laparotomy was performed, and a large solid left ovarian tumor was found. Left salpingo-oophorectomy was carried out. Histology showed cords and nests of stratified high cellular epithelium with dense eosinophilic material in epithelial nests and dense fibrous stroma identified as a Brenner tumor of the ovary. Because mild to moderate cytologic atypia with mitotic activity was present, a diagnosis of proliferative Brenner tumor was made. After the operation, the patient was in good condition with no recurrence or metastasis so far.

Aged↗