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Showing papers in "Surgery Today in 1992"


Journal ArticleDOI
TL;DR: The coexistence of ER and PgR in Gastric cancer tissue suggests that the ER is physiologically active, or that ER positive gastric cancer is hormone-dependent, and the poor prognosis of patients with receptor positive gastrics cancer suggests that gastric cancers with these receptors is highly malignant.
Abstract: Estrogen receptors (ER) and progesterone receptors (PgR) were immunohistologically investigated in 107 patients with gastric cancer who underwent curative resection. Both ER and PgR were detected only in the cancer cell nucleus. The ER positive rate was 27.7% for males and 31.0% for females, while the PgR positive rate was 9.2% for males and 11.9% for females. Clinicopathologically, the ER positive rate was slightly higher in young females and in cases of poorly differentiated gastric cancer. When cumulative survival rates were analyzed in relation to the presence or absence of receptors, the 10-year cumulative survival rate after surgery was significantly lower in the ER positive cases, being 15.7% cent, than in the ER negative cases, being 62.7%, and also significantly lower in the PgR positive cases, being 18.2%, than in the PgR negative cases, being 48.3%. The coexistence of ER and PgR in gastric cancer tissue suggests that the ER is physiologically active, or that ER positive gastric cancer is hormone-dependent. The poor prognosis of patients with receptor positive gastric cancer suggests that gastric cancer with these receptors is highly malignant.

83 citations


Journal ArticleDOI
TL;DR: Living related liver transplantations have now become an acceptable transplant method, however, a transplantation from a cadaver that is brain dead but still has a beating heart is still absolutely necessary for adult recipients.
Abstract: Liver transplantation from a brain death donor has not yet been accepted in Japan. The only alternative method at present is transplantation from a living donor. After the first successful living related liver transplantation was performed by Strong in Brisbane, Australia, Japanese hepatic and transplant surgeons also began to perform such operations. As of February 1991, 16 living related liver transplantations had already been performed in Japan, mainly for children with biliary atresia. Five of these patients subsequently died, however, our patient has survived more than 1 year, and she is presently leading a normal school life. The most important issue regarding living related liver transplantation is to ensure the donor's safety. For this purpose, we conducted a preoperative banking of the donor's own blood and plasma. In addition, a selective vascular occlusion was carried out to reduce blood loss during the resection of the liver. Intraoperative color Doppler ultrasonography was introduced for evaluating the circulation of the graft. By using this modality, the following three points were able to be accurately estimated in order to obtain optimal graft perfusion: 1) The most suitable position for the graft to be fixed to the abdominal wall, 2) whether or not the abdominal wall could be closed and 3) the indication for a ligation of the collateral veins to form a porto-systemic shunt. Thanks to these procedures, living related liver transplantations have now become an acceptable transplant method, however, a transplantation from a cadaver that is brain dead but still has a beating heart is still absolutely necessary for adult recipients. Therefore, in the future, both methods should be performed.

69 citations


Journal ArticleDOI
TL;DR: The findings suggest that the DAC-80 membrane may have hemostatic activity through the modulation of fibrinolytic activity of peritoneal exudative macrophages.
Abstract: In this study, we determined the effect of 80% deacetylated chitin (DAC-80) membrane on postsurgical bleeding after visceral and parietal peritoneal abrasion. Japanese white rabbits underwent a midline laparotomy followed either by a bilateral peritoneal sidewall abrasion (4×4 cm) or an abrasion of liver surface (3×2 cm). The injured surface was then covered with a 0.2 mm thick DAC-80 membrane. On postsurgical day 2, the rabbits were sacrificed and the amounts of postsurgical bleeding was determined by quantitating the number of red blood cells recovered in 50 ml peritoneal lavage fluid. The DAC-80 membrane was found to reduce postsurgical bleeding after the abrasion of liver surface (treated with DAC-80 membrane: 2.9±0.8; control: 24.6±5.9×108 cells/peritoneal cavity, P<0.005). This same hemostatic activity was not observed after application in the peritoneal sidewall abrasion model. We also measured plasminogen activator activity (PA) and urokinase inhibitory (PAI) activity in the spent culture media of macrophages recovered from the postsurgical peritoneal exudate. The DAC-80 membrane reduced the PA secretion from postsurgical macrophages after liver surface abrasion (treated with DAC-80: 2.8±0.7; control: 3.9±0.9 mPU/ml). The DAC-80 membrane also showed similar effects on PA secretion after peritoneal sidewall abrasion. No significant effects were found in the secretion of PAI by postsurgical macrophages in both surgical models.

50 citations


Journal ArticleDOI
TL;DR: Analysis of the fluid balance revealed that much more fluid was necessary during surgery and the postoperative 24 h than in patients treated by a standard esophagectomy, which suggests the development of the lymphaticovenous shunts, which differed depending on the anatomy of each patient.
Abstract: An en bloc resection of esophageal cancer is one of the most radical forms of esophagectomy, and includes the resection of the thoracic duct, but a relatively high hospital motality rate has been reported. There is very little knowledge on the pathophysiological changes after resection of the thoracic duct. We examined 24 patients who underwent en bloc resection. Some patients developed severe tachycardia or shock postoperatively which subsided after a massive infusion of plasma. Analysis of the fluid balance revealed that much more fluid was necessary during surgery and the postoperative 24 h than in patients treated by a standard esophagectomy. Postoperative lymphangiography or CT revealed abnormal collateral lymphatics around the kidneys or in the pelvic cavity. This suggests the development of the lymphaticovenous shunts, which differed depending on the anatomy of each patient. One patient with chronic hepatitis developed uncontrollable ascites. These are important findings which can hopefully reduce the high rate of hospital death after this operation.

47 citations


Journal ArticleDOI
TL;DR: Although a sufficient pathophysiological investigation could not be fully conducted, partial portal arterialization was considered to be effective in one patient, while no clinically noticeable adverse effects were revealed in the other patient.
Abstract: Massive liver necrosis, which is a severe and highly fatal complication after extended pancreatobiliary surgery, may occur due to an interruption of the hepatic arterial flow caused by such events as an excision of the hepatic artery invaded by cancer, a ligation of the postoperatively ruptured hepatic artery, or a thrombotic obstruction of the reconstructed hepatic artery. In order to improve this ischemic state of the liver, we have performed a partial arterialization of the portal vein by making an arteriovenous shunt at the mesenteric vascular branches in two cases. Although a sufficient pathophysiological investigation could not be fully conducted, partial portal arterialization was considered to be effective in one patient, while no clinically noticeable adverse effects were revealed in the other patient.

44 citations


Journal ArticleDOI
TL;DR: This case is presented with a description of the roentgen appearance, followed by a review of the Japanese literature, and the final pathological diagnosis was made as cavernous lymphangioma.
Abstract: We report herein a rare case of a 53 year old man with a benign lymphangioma of the small intestine. He presented with a complete obstruction of the small intestine and radiological examination revealed a small intestinal tumor. A long intestinal tube was passed, the intestinograms from which detected a submucosal tumor of the small intestine. Partial resection of the small intestine was thus performed and the tumor was found to be located mainly in the submucosa. The final pathological diagnosis was made as cavernous lymphangioma. This case is presented with a description of the roentgen appearance, followed by a review of the Japanese literature.

43 citations


Journal ArticleDOI
TL;DR: The results indicate that the increase in low density PMNs in patients with severe infection clearly reflects the functional impairment of PMNs, and that the measurement of PMN-subpopulations may be used to complement the clinical assessment of the severity of infections.
Abstract: We investigated the changes in polymorphonuclear leukocyte (PMN) subpopulations that accompany severe bacterial infection and examined their usefulness as a parameter for assessing the severity of infection. The Percoll density gradient was used to fractionate neutrophils into subpopulations of high density (1.09–1.10), intermediate density (1.08–1.09), and low density (1.07–1.08) with the majority of neutrophils from normal volunteers being of high density. By contrast, neutrophils from infected patients were of intermediate or low density, while those from severely infected patients showed a high percentage of the low density fraction with functional changes in lower chemotactic and β-gulcuronidase activity. When each density subpopulation in the normal blood neutrophils was tested, low density PMNs had the lowest chemotaxis and minimal β-glucuronidase activity. These results indicate that the increase in low density PMNs in patients with severe infection clearly reflects the functional impairment of PMNs. Flow cytometric analysis demonstrated that the neutrophils from severely infected patients had an decrease in CD10 expression. The percentage of CD10 positive PMNs correlated well with the severity of infection and with the clinical course of the patients. Thus, we conclude that PMN-density and CD10 expression change during severe bacterial infection, and that the measurement of PMN-subpopulations may be used to complement the clinical assessment of the severity of infections.

39 citations


Journal ArticleDOI
TL;DR: Because there were cases of patency even after 12 months with a very small pannus thickness, suturelessAnastomosis is considered to be a useful method of preventing anastomotic neointimal hyperplasia.
Abstract: On the assumption that the remaining suture threads of the anastomotic line play an important role in the progression of anastomotic neointimal hyperplasia, we performed an experimental study on the sutureless anastomosis of blood vessels. An expanded polytetrafluoroethylene graft, 5 mm in diameter and 2 cm in length, was implanted on the abdominal aorta of mongrel adult using one of three methods of anastomosis, namely; a continuous suture, a stay suture, or sutureless anastomosis. Overall patency rates were 83.3 per cent, 91.7 per cent and 75.0 per cent respectively. The thickness of the pannus in the distal anastomotic line after 12 months was 107 μm in one graft in the continuous suture group, 106 μm and 222 μm in 2 grafts each in the stay suture group, and 41 μm and 117 μm in 2 grafts each in the sutureless group. Because there were cases of patency even after 12 months with a very small pannus thickness, sutureless anastomosis is considered to be a useful method of preventing anastomotic neointimal hyperplasia.

34 citations


Journal ArticleDOI
TL;DR: The results reveal that aggressive removal of isolated and resectable recurrent disease has the potential to improve the prognosis of selected patients with metastatic cancer.
Abstract: Although hepatectomy for liver metastases from colorectal carcinoma is an effective treatment, recurrence in the liver is still the most common site after hepatectomy. Thirty patients underwent hepatectomy for hepatic metastases and 17 of them had recurrence in the remnant liver during the following 12-year period. Six of the 17 patients underwent a removal of isolated hepatic recurrences. Two of the six patients underwent a third hepatectomy, and three patients underwent partial lung resection on a total of five occasions. There were no operative deaths while complications after a third hepatectomy contributed to a high morbidity rate of 40 per cent. The mean length of survival of the six patients was 28.5 months from the second hepatectomy. The prognosis of the six patients who underwent a repeat hepatectomy was significantly better than that of patients with unresectable recurrence after an initial hepatectomy (p<0.01). The overall 5-year survival of 29 patients excluding one inhospital death was 44.7 per cent. Our results reveal that aggressive removal of isolated and resectable recurrent disease has the potential to improve the prognosis of selected patients with metastatic cancer.

34 citations


Journal ArticleDOI
TL;DR: A 36 year old woman was admitted to the authors' department because of a chest X-ray which showed multiple developing shadows and a total 5 tumors were resected and pathologically diagnosed as benign metastasizing leiomyoma, the largest of which was positive for the progesterone receptor and negative for the estrogen receptor.
Abstract: A 36 year old woman was admitted to our department because of a chest X-ray which showed multiple developing shadows. She underwent bilateral exploratory thoracotomies and a total 5 tumors were resected and pathologically diagnosed as benign metastasizing leiomyoma, the largest of which was positive for the progesterone receptor and negative for the estrogen receptor. A histogram of this tumor using a flow cytometer showed a diploid pattern and 4.6 percent of the S phase which was not more than that of a leiomyoma of the uterus from another patient. Two months later, she underwent a hysterectomy and bilateral salpingo-oophorectomy for treatment of the positive progesterone receptor in the pulmonary lesions. The resected uterine myoma and normal myometrium showed positive estrogen and progesterone receptors. For the subsequent 28 months she has been free of any further symptoms. Benign metastasizing leiomyoma of the uterus is a rare disease and very interesting because of its histological benignity and hormonal dependency. However, according to the literature, it is often confused in entity due to the fact that normal lung tissue also possesses hormone receptors. Considering our data on hormone receptors, it is rational to think that multiple leiomyomatous lesions in the lung should only be diagnosed as benign metastasizing leiomyomas when they possess positive estrogen and progesterone receptors.

31 citations


Journal ArticleDOI
TL;DR: 580 μg/ml is postulated to be the most appropriate threshold value for predicting the prognosis of advanced gastric cancer patients, and it is suggested that PSK would be most effective in patients whose preoperative IAP level is lower than the threshold level.
Abstract: The prognostic value of immunosuppressive acidic protein (IAP), which is known to suppress various immune responses in cancer patients, was studied in a prospective randomized trial of advanced gastric cancer patients, designed to evaluate the effect of PSK, a kind of biological response modifier with protein-bound polysaccharides. Preoperative serum IAP levels were determined in 228 patients who received radical gastric resection and tests conducted in one laboratory by the single radial immunodiffusion (SRID) method. All patients were followed up for 24 months or more. There was an overall significant difference in disease-free survival time in favour of the PSK-treated group compared with the control group. Preoperative IAP values were strongly associated with disease-free survival time. The statistical analysis to define an appropriate cut-off level for IAP was performed using Cox's proportional hazards model. The most significant difference was observed at the threshold value of 580 micrograms/ml, the hazard ratio being 2.13 with a 95% confidence interval [1.17, 3.88] (P = 0.013). Patients in the PSK-treated group with a preoperative IAP of lower than 580 micrograms/ml showed improved disease-free survival (P = 0.029), however, no significant difference was seen between the two groups when the preoperative IAP exceeded the threshold level. From these results, 580 micrograms/ml is postulated to be the most appropriate threshold value for predicting the prognosis of advanced gastric cancer patients, and it is suggested that PSK would be most effective in patients whose preoperative IAP level is lower than the threshold level.

Journal ArticleDOI
TL;DR: When there is no evidence of bowel infarction, fibrinolytic therapy with an enormous dosage of UK over a short period is deemed to be both effective and essential as a conservative therapy for PVT.
Abstract: Portal vein thrombosis (PVT) after splenectomy in a patient with portal hypertension occurs with unusually high frequency. Recently, two patients with PVT following splenectomy were treated by fibrinolytic therapy with an enormous dosage of urokinase (UK) in a short period. PVT was quickly dissolved without side effects and the patients are now doing well without any recurrence of PVT. Therefore, when there is no evidence of bowel infarction, fibrinolytic therapy with an enormous dosage of UK over a short period is deemed to be both effective and essential as a conservative therapy for PVT.

Journal ArticleDOI
TL;DR: In any patient with colorectal cancer, the entire large bowel should be thoroughly searched for any other primary tumors, by taking the existence of extracolonic tumors into account, and the follow-up period should be life-long.
Abstract: In this study, we analyzed 149 surgical cases of colorectal cancer between January 1983 and August 1989. Thirteen cases (8.7 per cent) of colorectal primary cancer associated with extracolonic primary malignancy of 14 lesions and 10 cases (6.7 per cent) of multiple primary colorectal cancers were included. Among the 14 lesions of extracolonic primary malignancy, there were 6 gastric carcinomas, 2 endometrial carcinomas, 2 urinary bladder carcinomas, and one each in the esophagus, liver, bile duct and jejunum. The second tumor was not detected preoperatively in 3 of 4 cases of synchronous multiple primary colorectal carcinoma. A curative resection was done in 10 (77 per cent) out of 13 cases of colorectal cancer associated with extracolonic malignancy, while 7 (88 per cent) out of 8 cases of multiple colorectal cancers had a curative resection. Nine patients (69 per cent) with colorectal cancer associated with extracolonic malignancy were disease-free for 2 months to 14 years. Seven patients (88 per cent) with multiple colorectal cancers were disease-free for one to 22 years. We recommend, therefore, that in any patient with colorectal cancer, the entire large bowel should be thoroughly searched for any other primary tumors, by taking the existence of extracolonic tumors into account. A curative resection should be performed, and the follow-up period should be life-long.

Journal ArticleDOI
TL;DR: A case of successfully treated advanced, nonfunctioning islet cell carcinoma associated with left-sided portal hypertension with radical resection carried out with removal of five involved organs and the patient is alive without recurrence more than 5 years after surgery.
Abstract: We report herein a case of successfully treated advanced, nonfunctioning islet cell carcinoma associated with left-sided portal hypertension. The splenic vein was obstructed by a huge intravenous tumor thrombus developing from the main pancreatic tumor. Direct invasion to adjacent organs such as the spleen, colon, left kidney and stomach was also observed, although liver metastasis was not present. Radical resection was carried out with removal of these five involved organs and the patient is alive without recurrence more than 5 years after surgery.

Journal ArticleDOI
TL;DR: A case of acute JGI in which failure of endoscopic reduction required surgical resection and reconstruction is presented, followed by a discussion based on the current available literature.
Abstract: Jejunogastric intussusception (JGI) is a rare complication which can develop after partial gastrectomy, gastroenteroanastomosis or enteroanastomosis. Although its management is usually surgical, an endoscopic reduction can alternatively be attempted. We present herein a case of acute JGI in which failure of endoscopic reduction required surgical resection and reconstruction. This is followed by a discussion based on the current available literature.

Journal ArticleDOI
TL;DR: Based on an evaluation of the 71 patients with primary splenic malignant lymphoma reported to data in Japan, the patients treated by a curative resection in an early clinical stage have a more favorable prognosis.
Abstract: We treated two patients with primary splenic malignant lymphoma. One was a 63-year-old man with diffuse histiocytic non-Hodgkin's lymphoma accompanied by multiple liver metastases which were composed of necrotic tissue probably due to preoperative transarterial chemoembolization (TAE). He eventually died of liver failure two years and six months after splenectomy. The autopsy revealed that a large part of the cirrhotic liver had been occupied by a diffuse-type hepatocellular carcinoma, but no recurrence of the malignant lymphoma was found in the liver or other organs. The second patient was a 40-year-old woman with a massive invasion of the stomach, colon, pancreas, and diaphragm by a splenic tumor. The splenic tumor and the adjacent involved organs were resected. Pathologically, well-differentiated diffuse lymphocytic non-Hodgkin's malignant lymphoma was evident. No recurrence has been found for six years and two months. Based on an evaluation of the 71 patients with primary splenic malignant lymphoma reported to data in Japan, the patients treated by a curative resection in an early clinical stage have a more favorable prognosis.

Journal ArticleDOI
TL;DR: Results indicated that MMC + CDDP intra-arterial chemotherapy is an effective approach to gastric cancer with liver metastasis, indicating a good prognosis regardless of any possible resection of the primary lesion.
Abstract: The influence of operative treatment and chemotherapy on the prognosis in 93 gastric cancer patients with liver metastasis was studied. Chemotherapy included the systemic administration of mitomycin C (MMC) (39 patients), an intra-hepatoarterial infusion of MMC (MMC IAC group) (19 patients) and an intra-hepatoarterial infusion of MMC and cisplatin (CDDP) (MMC + CDDP IAC group) (24 patients). Either MMC or MMC and CDDP were given in 1-4 courses every 3-4 weeks from the first one to two post operative weeks. The response rate was 4 per cent (1/23), 29 per cent (5/17) and 73 per cent (17/23) for MMC systemic administration, MMC IAC and MMC + CDDP IAC, respectively, with a significantly high rate of effectiveness for the MMC + CDDP IAC. In addition, regarding the median survival period, the MMC + CDDP IAC group showed 11.8 months, as compared with 2.9 months for other chemotherapeutic treatments, indicating a good prognosis regardless of any possible resection of the primary lesion. A Cox proportional hazard model revealed the treatment by MMC + CDDP IAC alone to be a significant independent factor. These results indicated that MMC + CDDP intra-arterial chemotherapy is an effective approach to gastric cancer with liver metastasis.

Journal ArticleDOI
TL;DR: A 39-year-old man who had no symptoms other than a 7 month history of a cough is reported, who underwent resection of the thoracic and abdominal esophagus with lower lobectomy of the right lung through a right and left thoracotomy and was discharged from the hospital 20 days after the second operation and is now doing well.
Abstract: Leiomyosarcoma of the esophagus is a rare neoplasm, with only 95 cases having been reported in the literature. Dysphagia is the most commonly noted symptom, however, because of its location in the submucosal layer, the tumor has usually grown to a considerable size by the time this presents. We report herein a case of a 39-year-old man who had no symptoms other than a 7 month history of a cough. After several investigations, the patient underwent resection of the thoracic and abdominal esophagus with lower lobectomy of the right lung through a right and left thoracotomy. The tumor measured 18×15×8cm in length and weighed 1,500g, being the biggest such tumor ever reported. Forty days after the first operation, an extended right hepatic lobectomy of the liver was performed for hepatic metastasis. He was discharged from the hospital 20 days after the second operation and is now doing well. The clinical features and surgical treatment of leiomyosarcoma of the esophagus are discussed herein.

Journal ArticleDOI
TL;DR: This work has shown that further advancement in the elucidation of ampullary obstruction and viability of the donor bile duct is needed in order to reduce biliary complications after liver transplantation.
Abstract: Biliary tract complications are often referred to as the "Achilles' heel" of liver transplantation and various techniques have been developed to overcome them. The two major methods of bile duct reconstruction currently in use consist of either (1) choledochocholedochostomy over a T-tube or, when duct-to-duct approximation is not feasible, choledochojejunostomy over an internal stent, or (2) interposition of the donor gallbladder as a conduit between the donor bile duct and either the recipient bile duct or a jejunal loop. Although these standardizations of biliary tract reconstruction have resulted in a reduction of biliary complications after liver transplantation, further advancement in the elucidation of ampullary obstruction and viability of the donor bile duct is needed.

Journal ArticleDOI
TL;DR: It is indicated that the sympathetic nerve regulates PVF directly, and that there is functional laterality of the regulatory mechanism in the abdominal cavity, which suggests that adrenal factors work together with the nerve that supplies the portal vein.
Abstract: The role of the abdominal sympathetic nervous system in regulating portal venous flow (PVF) was examined in anesthetized rats using an ultrasonic volume flowmeter. Electrical stimulation of the hepatic sympathetic branch, given at 10 Hz, 1 ms, 10 s and 12 V, caused approximately a 28 percent reduction in PVF, which was equivalent to that produced by occlusion of the bilateral carotid arteries for 30 s, without causing any change in the systemic arterial pressure. Stimulation of the major splanchnic nerve decreased PVF, the response being greater by stimulation of the right nerve than by stimulation of the left (p less than 0.05). Bilateral adrenalectomy shortened the recovery time without changing the magnitude or lateral predominancy. Neither proper hepatic arterial occlusion nor partial hepatectomy affected the response. In the partially hepatectomized animals, stimulation of the hepatic branch did not decrease the splenic flow but decreased the superior mesenteric venous flow (SMVF) and induced a similar response in PVF even when the SMVF was interrupted. An intraportal injection of noradrenaline decreased PVF dose-dependently. These findings indicate that the sympathetic nerve regulates PVF directly, and that there is functional laterality of the regulatory mechanism in the abdominal cavity, which suggests that adrenal factors work together with the nerve that supplies the portal vein.

Journal ArticleDOI
TL;DR: A 66 year old Japanese female admitted to the authors' department for the examination and treatment of a mass in the cecum revealed intussusception of an appendiceal mass, which was histologically diagnosed as a mucocele of the appendix.
Abstract: A 66 year old Japanese female was admitted to our department for the examination and treatment of a mass in the cecum. She had experienced no symptoms or signs other than a positive test result for fecal occult blood. The mass in the cecum was confirmed by barium enema, colonofiberscopy and CT scanning. The presumptive diagnosis was a submucosal tumor of the cecum, however, a laparotomy subsequently revealed intussusception of an appendiceal mass. An ileocaecal resection with an ileocolic anastomosis was therefore performed and the mass was histologically diagnosed as a mucocele of the appendix. This patient is only the 24th case of intussusception of a mucocele of the appendix to be reported in Japan. A review of the available literature on this condition follows the case report.

Journal ArticleDOI
TL;DR: The results suggest that the A7 antigen may only rarely be shed into the sera of pancreatic cancer patients, in which case MAb A7 could be a suitable drug-carrier in targeting chemotherapy for pancreatic cancers patients.
Abstract: In a previous study, we used a murine monoclonal antibody, A7, against human colon carcinoma as a drug-carrier to treat colorectal cancer.1 In the present study, we found that MAb A7 also reacted immunohistochemically with 73% of human pancreatic carcinoma cell lines, with the A7 antigen mainly being detected on the cell surface. However, the A7 antigen was found in only 9% of the spent media of these human pancreatic carcinoma cell lines by ELISA. On the other hand, the positive incidence of CA19-9, POA, ferritin, CEA, DU-PAN-2 and SLX in those spent media was 100%, 64%, 64%, 55%, 55% and 36%, respectively. These results suggest that the A7 antigen may only rarely be shed into the sera of pancreatic cancer patients, in which case MAb A7 could be a suitable drug-carrier in targeting chemotherapy for pancreatic cancer patients.

Journal ArticleDOI
TL;DR: Although rare, adenoma of the nipple should be borne in mind to avoid a misdiagnosis of malignancy and unnecessarily extensive surgery.
Abstract: We report herein a case of a 42 year old woman with adenoma of the nipple of her left breast. The diseased nipple was enlarged, reddened and a hard elastic mass was palpable within its substance. There was an area of eczematoid erosion on the surface. Incisional biopsy revealed a picture of adenoma and therefore the nipple was excised. Five years postoperatively, there has been no recurrence of the disease. To our knowledge, only thirteen cases of adenoma of the nipple have been reported in the Japanese literature. Some clinical features and treatments are discussed in a review following the case report. Although rare, adenoma of the nipple should be borne in mind to avoid a misdiagnosis of malignancy and unnecessarily extensive surgery.

Journal ArticleDOI
TL;DR: To control infection, the surgical environment and aseptic technique seem more important than antibiotic prophylaxis in patients compromised by the severity of an underlying disease.
Abstract: A total 782 consecutive patients underwent open-heart surgery with CPB between January, 1979 and December, 1988, at the Yamagata University Hospital. We assessed the incidence of postoperative infections in relation to age, the duration of surgery and antibiotic prophylaxis, and examined the causative organisms, after which the types of infecting flora were compared between the 1st period, from 1979 to 1983 and the 2nd period, from 1984 to 1988. Postoperative infection occurred in 104 of the 782 patients (13.3 per cent); in the form of a wound infection in 41 (5.2 per cent), pneumonia in 33 (4.2 per cent), urinary tract infection in 9 (1.2 per cent), prosthetic valve endocarditis in 6 (0.8 per cent), and other infections in 15 (1.9 per cent). Patients aged under 12 months or over 60 years showed a higher incidence of infection, being 17.4 per cent and 19.2 per cent, respectively. Patients who underwent an operation of over 8 hours duration also had a significantly higher incidence compared to those whose operation time was less than 4 hours, being 32.9 per cent and 6.3 per cent, respectively (p<0.0001). There was no significant difference in the incidence of postoperative infection between patients given or not given preoperative prophylaxis. A total 123 species of organisms were isolated from the 104 patients, 52.8 per cent being gram-negative bacteria (GNB), and 43.9 per cent grampositive bacteria (GPB), and a remarkable increase in the incidence of GPB was seen in the 2nd period compared to the 1st period from 31.7 per cent to 50.0 per cent. There has been a recent increase in the number of high risk patients compromised by the severity of an underlying disease. Thus, to control infection, the surgical environment and aseptic technique seem more important than antibiotic prophylaxis.

Journal ArticleDOI
TL;DR: An adequate combination of surgery and chemotherapy may improve the prognosis ofUndifferentiated (embryonal) sarcoma, a rare malignant tumor of the liver that typically presents in late childhood.
Abstract: Undifferentiated (embryonal) sarcoma is a rare malignant tumor of the liver. It typically presents in late childhood and its prognosis is poor. We experienced three cases of such a tumor during the period of 1976–1989; two of these patients are still alive without disease. Each case was independently treated with a combination of surgery and preand/or postoperative chemotherapy, which was found to be effective. In one surviving patient, cyclophosphamide and vincristine were found to be effective, while in the other a combination of cisplatin, Adriamycin (ADM), vincristine and cyclophosphamide was observed to induce a rapid reduction in the size of the recurrent tumor. Thus, an adequate combination of surgery and chemotherapy may improve the prognosis of this tumor.

Journal ArticleDOI
TL;DR: The patient has been well without recurrence for fifteen months following her operation through the continuous administration of postoperative immunochemotherapy through the continuously administration of these agents.
Abstract: A case of primary anorectal malignant melanoma seen in a 46 year old woman is presented herein. Her most marked symptoms were bloody stools and anal pain. Endoscopic examination indicated a tumor with ulceration but without pigmentation in the anorectal region. Histologic examination of the biopsied specimens showed spindle-shaped cells with atypia proliferating in a bandlike arrangement, as in leiomyosarcoma. An abdominoperineal resection was done and detailed histological examination of the tumor confirmed the nature of the tumor to be malignant melanoma. The postoperative immunochemotherapy consisted of Dimetyl-Triazeno-Imidasole-Carboxamide (DTIC), Amino-Methyl-Pyrimidinyl-Methyl-Chlorethyl-Nitrosourea-Hydrochlori de (ACNU), Vincristine (VCR) and OK-432. The patient has been well without recurrence for fifteen months following her operation through the continuous administration of these agents.

Journal ArticleDOI
TL;DR: The importance of evaluating the upper trachea in patients with prolonged benign goiter is stressed and the diagnosis as well as the management of this type of complication are discussed.
Abstract: Acute upper tracheal obstruction from a huge benign goiter developed in an 80-year-old woman Computed tomography showed severe stenosis of the cervical trachea by extrinsic compression A left hemithyroidectomy was performed and the tracheal lumen returned to normal size However, the tracheal wall was malacic due to the prolonged compression by the goiter and a silastic T-tube insertion was necessary for a two month period This type of tracheal obstruction is rare The importance of evaluating the upper trachea in patients with prolonged benign goiter is stressed and the diagnosis as well as the management of this type of complication are discussed

Journal ArticleDOI
TL;DR: Two cirrhotic patients with ruptured hepatocellular carcinoma (HCC), presenting with hemoperitoneum, were successfully treated by elective hepatectomy, and the use of a microwave tissue coagulator resulted in minimal intra-operative blood loss and an appreciably excellent post-operative course.
Abstract: Two cirrhotic patients with ruptured hepatocellular carcinoma (HCC), presenting with hemoperitoneum, were successfully treated by elective hepatectomy. Both of these patients, a 67-year-old female and a 76-year-old male, had first been taken to other primary hospitals by ambulance due to hypovolemic shock. They were then found to have a mass of approximately 5 cm in the cirrhotic liver. In the initial management, however, neither any direct hemostasis by surgery nor indirect measures such as transcatheter hepatic arterial embolization were performed in either case. Instead, conservative treatment consisting mainly of fresh blood and plasma transfusions were continued for more than a month until the liver function stabilized. In both hepatectomies, the use of a microwave tissue coagulator resulted in minimal intra-operative blood loss and an appreciably excellent post-operative course. These cases point to the effectiveness of a “wait and see” policy for selected patients with ruptured HCC.

Journal ArticleDOI
TL;DR: A 69-year-old woman was diagnosed as having hepatocellular carcinoma (HCC) with liver cirrhosis in October, 1984 and treated by transcatheter arterial embolization (TAE) and the histological findings were compatible with HCC metastasized to the adrenal gland.
Abstract: A 69-year-old woman was diagnosed as having hepatocellular carcinoma (HCC) with liver cirrhosis in October, 1984 and treated by transcatheter arterial embolization (TAE). In June, 1990 she was found to have a huge mass in the left hypochondrium which ultrasonography and computed tomography (CT) scan revealed to be a left adrenal mass. A 99mTc pyridoxyl-5-methyl tryptophan (99mTC-PMT) hepatobiliary scintigraphy was positive and confirmed metastatic HCC. Although the adrenal mass was large, the HCC itself was controlled well with TAE. The adrenal mass was removed surgically in July, 1990 and the histological findings were compatible with HCC metastasized to the adrenal gland.

Journal ArticleDOI
TL;DR: The macroscopic and histological features presently used to characterize early gastric cancer do not provide sufficient information to accurately predict which patients are at most risk for recurrence, and both types recurred from hematogenous metastases, with the liver being the most common site.
Abstract: Five hundred ninety-two patients with early gastric cancer underwent surgical resection from 1970 to 1986 in our hospital, and 13 died from a recurrence of their disease. A careful analysis of these 13 patients suggests that carcinomas which invaded to the submucosa tend to recur more often than those confined to the mucosa. Well differentiated and papillary adenocarcinomas characterized by protruded or elevated lesions tend to recur earlier than poorly differentiated or signet-ring cell carcinomas characterized by depressed or excavated lesions. However, both types recurred from hematogenous metastases, with the liver being the most common site. Therefore, the macroscopic and histological features presently used to characterize early gastric cancer do not provide sufficient information to accurately predict which patients are at most risk for recurrence.