Role of Papillary Muscle Dysfunction in the Pathogenesis of Mitral Regurgitation in Myocardial Infarction:

To elucidate the pathogenesis of mitral regurgitation (MR) after myocardial infarction (MI), the incidence of papillary muscle dysfunction (PMD), mitral annular size, and the extent of wall-motion abnormalities were examined in 81 patients with previous MI by two-dimensional echocardiography and real-time two-dimensional Doppler flow imaging. The prevalence of pathological MR was lower in patients with anterior MI (36%) than in those with inferior (65%) or anterior and inferior MI (88%) (P < 0.01 vs anterior MI group). The incidence of PMD in patients with MR in the anterior MI group (15%) was lower than that in the inferior (50%, P < 0.01) or anterior and inferior MI group (43%, P < 0.05). The mitral annular dimension in patients with MR was significantly greater than in those without MR, but it was similar among the three groups. The extent of wall-motion abnormality correlated significantly with the area of MR jet in the anterior MI group (y = 3.1x + 15.5, r = 0.52, P < 0.01) and in the inferior MI group (y = 8.3x + 32.7, r = 0.57, P < 0.01). However, the slope of this relationship was significantly steeper in the inferior MI group than in the anterior MI group (P < 0.05). These results indicated that the degree of MR with inferior MI was greater than with anterior MI for a given MI area. PMD may play an important role in the higher prevalence and greater degree of MR in inferior MI.     

Multiple primary malignancies in Japanese patients with renal cell carcinoma

AIM: To evaluate the incidence, nature and prognosis of multiple primary malignancies involving renal cell carcinoma (RCC) in Japan. METHODS: Between 1975 and 1998, 319 patients underwent an operation for RCC at Hokkaido University, Sapporo, Japan. The incidence of other primary malignancies was determined and classified as antecedent, synchronous or subsequent. Follow-up was obtained by thorough chart review or telephone interview, and ranged from 0 to 276 months (median 49.0 months). To analyze the influence of other primary malignancies on prognosis, overall and cause-specific survival rates of the patients with an antecedent or synchronous malignancy were compared to the remaining patients. RESULTS: Of the 319 patients there was at least one other malignancy in 38 patients (12%). Four patients had two other malignancies. The other malignancies were antecedent in 13, synchronous in 19 and subsequent in 10 patients. Twenty-two patients had gastrointestinal cancer. In cases of antecedent or synchronous diagnosis of other primary malignancies, RCC was commonly incidental, small or low-stage. Multivariate analysis using Cox's proportional hazards model showed that, for overall survival, the presence of other antecedent or synchronous malignancies was the second most significant prognostic factor, following the pathological stage of RCC. CONCLUSIONS: In Japanese patients with RCC, the incidence of other primary malignancies was not uncommon and these malignancies contributed to the prognosis of these patients. Therefore, the malignant potential of individual tumors should be paid careful attention in the management of these patients.     

Impact of adjuvant systemic chemotherapy on postoperative survival in patients with high-risk urothelial cancer

BACKGROUND: The objective of this study was to retrospectively investigate the effectiveness of adjuvant combination chemotherapy for locally advanced urothelial cancer. METHODS: Between 1987 and 1998, 56 patients with locally advanced bladder (n = 27) or upper urinary tract (n = 29) cancer (pathological stage T3, T4 or N1, N2 and M0) were treated by radical cystectomy or radical nephroureterectomy and regional lymphadenectomy. Thirty-one patients had lymph node-positive disease and 25 patients did not. Twenty patients underwent adjuvant chemotherapy and 36 patients were observed after surgery. Cox proportional hazards models were used to determine the impact of numerous clinicopathological findings on survival. A subgroup analysis of patients with lymph node-positive disease was conducted to evaluate disease-free survival and overall survival rates. RESULTS: In this series, the median follow-up period was 39 months (range, 4-163) after surgery. Disease-free and overall survival rates of all 56 patients were 45% and 58%, respectively, at 3 years. Only lymph node status was significantly associated with disease-free and overall survival in the multivariate analyses. In a subgroup analysis of patients with lymph node-positive disease, 16 patients who underwent adjuvant chemotherapy had superior disease-free survival compared to 15 patients with no adjuvant chemotherapy (P = 0.0376). CONCLUSION: These findings show that the prognosis of advanced urothelial cancer is significantly associated with nodal status. Furthermore, adjuvant combination chemotherapy has a positive impact on survival in patients with lymph node-positive disease.     

“Tailor-made” Total Cerebral Protection during Transcatheter Aortic Valve Implantation

Transcatheter aortic valve implantation (TAVI) is an alternative treatment to surgical aortic valve replacement for treating severe aortic stenosis. With the increased use of TAVI, the risk of cerebrovascular complications during the procedure has become an emerging problem. We evaluated the safety and feasibility of our total cerebral protection methods using embolic protection devices (EPDs) for carotid artery stenting. We collected the results of cases in which the clinical team determined that our protection method was necessary among patients undergoing TAVI from May to October 2019 in our medical center. We applied this method to patients who had a potentially high risk of cerebrovascular events during the procedure. The methods of protection were selected comprehensively based on the potential of collateralization of brain perfusion when some arteries were blocked with a balloon, accessibility of the brain arteries, and the ability to cover the brain arteries with devices. Five patients, aged 83.8 ± 1.8 years, were included in the study. Technical success was achieved in all five patients. No cases showed any new neurological symptoms after the procedures; however, head MRI on the day after showed new ischemic lesions in three of five cases (60%). In all cases, emboli were found in the collected filters. This report demonstrates protection of the entire perfusion area in each case using EPDs in patients at high risk of intraoperative embolism. The methods we used were feasible and can potentially reduce cerebrovascular events following TAVI.     

Effects of combination therapy with interferon and ofloxacin on chronic type C hepatitis: A pilot study

Interferon is effective in only a limited number of patients with the 1b type of hepatitis C virus (HCV), indicating that a combination therapy with other antiviral drugs may be essential to obtain better results. In the present pilot study, the effects of a combination therapy with interferon (IFN) and an antibacterial drug, ofloxacin, were analysed. Ten patients with chronic type C hepatitis received the combination therapy (combination group). Six million units of natural IFN-α were administered daily for 3 weeks and then three times a week for 21 weeks. The combination therapy was initiated at the beginning of the eighth week of IFN treatment and 600 mg ofloxacin per day was administered for 12 weeks. As a control, changes in HCV-RNA were also analysed in patients who were treated with only IFN for the same period (IFN-alone group). In the combination group, serum transaminase levels and the titres of HCV decreased significantly with ofloxacin administration. Such changes were not observed in the IFN-alone group. The incidence of HCV-negativity at the end of ofloxacin administration of the combination group was significantly higher than in the IFN-alone group. The complete response rate was twice as high in the combination group as in the IFN-alone group. In two patients who did not respond well to the IFN-alone treatment, ofloxacin administration was commenced after the 24th week. Serum transaminase levels were normalized and HCV-RNA became negative in these two patients after the administration of ofloxacin. These results suggest that combination therapy with IFN and ofloxacin may be an effective treatment for chronic type C hepatitis.     

A Case of Esophagitis Associated with Stevens-Johnson's Syndrome

Abstract: Stevens-Johnson's syndrome (SJS) is a severe type of erythema multiforme with involvement of the mucous surfaces of the mouth, nose and conjunctiva. Although various complications have been described, reports of digestive tract lesions associated with SJS are rare. A 21-year-old woman developed erythematous lesions on the limbs three days after receiving antibiotic and anti-inflammatory agent treatment for common cold-like symptoms. On initial consultation at our hospital, endoscopy was performed to investigate the cause of a disagreeable sensation in the esophagus and mucosal exfoliation of a white membrane-like substance was recognized as involving the entire esophagus. Sporadic white mucosal protrusions were also observed, suggesting exfoliative esophagitis. No abnormal findings were noted in the stomach or duodenum. After admission, the skin lesions rapidly expanded to involve the entire body including the mucous membranes of the lips, oral cavity, conjunctiva and vulva. Nikolsky's sign was positive. A diagnosis of SJS was made and systemic corticosteroid administration was initiated. Both the esophagitis and the skin lesions improved within 2 months of starting treatment. Esophageal lesions constitute a relatively rare manifestation of SJS, and only 10 cases have been reported in the international literature.     

Comparative effects of 5% ethanolamine oleate versus 5% sodium morrhuate for sclerotherapy of oesphageal varices

Forty-five cirrhotic patients with oesophageal varices were randomized to receive endoscopic injection sclerotherapy with either 5% ethanolamine oleate (EO), or 5% sodium morrhuate (SM). In the EO group, there was a statistically significant higher rate of disappearance of red colour signs on the varices a week after the initial session of sclerotherapy than in the SM group (91.3% vs 45.5%, P less than 0.05). A jet-like bleeding from injection sites at the second session of sclerotherapy occurred in three patients in the SM group and they experienced blurred vision. There was no such occurrence in the EO group. Oesophageal bleeding requiring blood transfusion during the course of repeated sclerotherapy occurred only in the SM group (five patients): bleeding was from a partly thrombosed varix and in four was from oesophageal ulcers. We found that EO administered intravariceally is more efficacious than SM for sclerotherapy of oesophageal varices.     

CASE REPORT: Metachronous early gastric carcinoma in a reconstructed gastric tube after radical operation for oesophageal carcinoma

The incidence of double cancer has increased as a result of the signi?cant advances in both diagnostic procedures and anti-cancer therapy, and as the outcome of oesophageal squamous cell carcinoma (ESCC) has improved, the number of cases of double cancer of the oesophagus and stomach has also increased. Two patients with metachronous early gastric carcinoma in a reconstructed gastric tube were successfully treated after subtotal oesophagectomy for ESCC. These cases have shown that early diagnosis of second cancer is very important for curative therapy.     

Laparoscopic antegrade continence enema procedure for fecal incontinence in a patient with spina bifida

We report a laparoscopic procedure for antegrade continence enema (LACE) that was performed successfully in 39-year-old man patient with spina bifida suffering from severe fecal incontinence. The patient had been receiving regular follow-up at our clinic. He desired the antegrade continence enema procedure to improve his intractable fecal incontinence with a less invasive procedure. Following the placement of the first port at the umbilicus using an open access technique, two additional ports were introduced at the upper and lower abdomen in the midline. The appendix was laparoscopically mobilized to the right lower abdomen and brought out through another port. Next, an in situ appendicocutaneostomy was created. The patient began oral intake the day after surgery. Initial irrigation was performed on the second postoperative day. Convalescence was quick and there were no postoperative complications. Although a minor skin incision was required afterward for superficial stoma stenosis, the patient has been in a satisfactory condition with regular enemas. Laparoscopic appendicocutaneostomy can be a reasonable surgical alternative for antegrade continence stoma procedure. LACE has a clear advantage over conventional open procedures in view of its less invasive nature and better cosmetic results.     

Hospital facilities available to patients with Kawasaki disease: Results of a national survey of Kawasaki disease in Japan

Since 1970, thirteen nationwide epidemiologic surveys of Kawasaki disease have been conducted, and questions on the current situation of hospitals and their facilities have been included in the survey form to assess the care available to patients with Kawasaki disease. To clarify the characteristics of medical care for Kawasaki disease, this paper summarizes the present condition of hospital facilities available to patients with Kawasaki disease. A questionnaire form including questions about the situation of hospital facilities was sent to all pediatric departments of hospitals with 100 or more beds throughout Japan. The proportion of hospitals in which successive observations with echocardiography (UCG) is available (UCG available hospital) was significantly increased compared with the ninth survey (1985–86), whereas that of the hospitals in which coronary angiography (CAG) is available (CAG available hospital) was significantly decreased. Almost all (96.2%) of the patients were reported from the UCG available hospitals. The proportion of patients reported from hospitals with a set policy for intravenous gamma globulin (IVGG) therapy was 74.5%. The proportion of UCG available and CAG available hospitals and that of hospitals with a set policy for IVGG therapy correlated with the increase in the number of patients. In conclusion, hospital facilities available to patients with Kawasaki disease in Japan have satisfactory capability for diagnosis and management of Kawasaki disease.