2.Clinical study on cancers in the bile duct, the pancreas head region and the liver and liver cirrhosis.
Noboru SASAKI ; Kunisuke INOUE ; Masaharu KAWAGUCHI ; Hiroshi MUTO ; Shunji HIRATA ; Satoru MORITA ; Yoshitaka SEKIGUCHI ; Seiryo TAKASHINA
Journal of the Japanese Association of Rural Medicine 1986;35(4):772-778
We evaluated the therapeutic results of cancers in the bile duct, the pancreas head region and the liver and cirrhosis.
The former two types were examined in a total of 49 cases: 10 cholecystocarcinomas, 18 cholangiocarcinomas, 6 papillocarcinomas, and 15 pancreas head cancers. Radical surgery was performed in only 9 cases: 1 cholecystocarcinoma, 1 cholangiocarcinoma, 5 papillocarcinomas and 2 pancreas head cancers. The surgical success rate was satisfactory 83%(5/6) for papillocarcinoma, yet showed 18.4% overall.
Liver cancer and cirrhosis were examined in 102 cases: 78 cirrhoses and 24 livercancers. Of the former, 15% were viral cirrhosis, 44% alcoholic, 1% specific and 40% unknown. Ofthe latter, 29% were viral liver cancer, 29% alcoholic and 42% unknown.
Treatment of these cancers, with the exception of one type, was unfavorable. To increase the surgical success rate, cancers will have to be discovered earlier using such recent, highly-advanced technological means as endoscopy, ultrasonography, angiography and computerized tomography. At the same time, radical surgery should be actively applied in a broader range of cases.
In cirrhosis, bleeding in the upper digestive tract and complicating liver cancer are increasing in frequency due to prolonged life expectancy. How to manage this increase remains subject for further study in the future.
3.Preferences and use of Japanese or Brazilian medicines by Japanese Brazilian immigrants in Japan
Yuki Nakagawa ; Leo Kawaguchi ; Michiyo Higuchi ; Nobuo Kawazoe ; Chifa Chiang ; Hiroshi Yatsuya ; Atsuko Aoyama
Journal of International Health 2012;27(3):213-223
Introduction
The use of medicines among Brazilian workers in Japan has not been documented. This study examines the preferences and use of medicines among Brazilian workers of Japanese origin in Japan.
Methods
A cross-sectional survey was conducted in 2011 in a community in Nagoya, where many Brazilian workers lived. Questionnaires were distributed to 206 Brazilian households, and asked about preferences and use of Japanese or Brazilian medicines. Associations with socioeconomic factors were analyzed using Fisher's exact test.
Results
The response rate was 36% (74 households). Of these, 66% had lived in Japan for over 10 years, and 88% held health insurance. Over 80% reported a preference for Japanese medicines. However, Brazilian medicines were used in more than 40% of the households. Employed Brazilians tend to use Brazilian medicines compared to the unemployed. Most respondents answered that Brazilian medicines were more effective, but were more expensive and produced worse side effect than Japanese medicines.
Households with children showed a preference for Japanese medicines for children's illnesses. However, more Brazilian medicines were used when the length of household's stay in Japan was less than 10 years, and when the respondent's perceived listening ability of Japanese language was poor.
Conclusion
Almost all respondents were using the medicines they preferred, suggesting that access to medicine was generally good in the community. However, 40% of respondents used Brazilian medicines, despite their long stay in Japan, their health insurance status, and their recognition of Japanese medicines as inexpensive and safe. This might be explained by familiarity with Brazilian medicines, or perception of their effectiveness.
Continuous self-administration of medicines without consultation has potential harm to the health. This study also suggests the importance of arranging social environments such as facilitating the taking of sick leaves, so that immigrant workers can secure their access to health services.
4.A Case of Left Atrial Myxoma in a 15-year-old Female Chiefly Complaining of Abdominal Symptoms
Sachihiko Nobuoka ; Shintaro Oomori ; Hirohito Kawaguchi ; Hiroshi Yatabe ; Kumiko Hamada ; Toshio Nakamura
General Medicine 2004;5(1):37-39
We describe our experience with a left atrial (LA) myxoma in a 15-year-old female who experienced abdominal symptoms so prominent that she was initially thought to have an inflammatory enterocolitis.
The patient's young age and predominant abdominal symptoms in the absence of any cardiac symptoms made it difficult to diagnose the LA myxoma early in the present case. This experience underscores the need for an intensive search for cardiac myxomas in patients with findings suggestive of inflammatory diseases or collagen disorders.
5.A Case of Right Subclavian Arterial Aneurysm.
Masakuni Kido ; Takanori Oka ; Hiroshi Fujii ; Hideki Kawaguchi ; Hideki Ninomiya ; Motohiko Osako ; Hajime Otani ; Hiroji Imamura
Japanese Journal of Cardiovascular Surgery 1999;28(2):132-135
Subclavian arterial aneurysms are relatively rare compared to aortic aneurysms. The common causes of subclavian arterial aneurysms are arteriosclerosis, non-specific inflammation, thoracic outlet syndrome, and trauma. A case of a subclavian arterial aneurysm is reported. The patient was a 57-year-old woman. She had no previous history of hypertension, infection and trauma. She underwent complete resection of the aneurysm and reconstruction of right subclavian artery. Exploration of the aneurysmal wall revealed circumferential ridge which caused stenosis of the right subclavian artery at the orifice of the aneurysm. It has been suggested that a subclavian arterial aneurysm developed as a result of abnormal development of the embryologic right fourth and distal sixth aortic arches.
6.Risk Assessment for a Learning Curve in Endovascular Abdominal Aortic Aneurysm Repair with the Zenith Stent-Graft: The First Year in Japan
Takashi Azuma ; Satoshi Kawaguchi ; Taro Shimazaki ; Kenji Koide ; Masataka Matsumoto ; Hiroshi Shigematsu ; Akihiko Kawai ; Hiromi Kurosawa
Japanese Journal of Cardiovascular Surgery 2008;37(6):311-316
In Japan, doctors inexperienced stent-graft new devices are required to secure agreement on criteria and choice of the device size in endovascular aneurysm repair (EVAR) from experienced doctors. It was hoped that strict patient selection might reduce the learning curve for initial successes in given procedures. In a leading center in Japan, a number of cases which were scheduled for operation at other institutes were evaluated anatomically. We surveyed the initial success of Zenith AAA system implantation in the remaining cases by inexperienced doctors and evaluated the results. This study aimed to verify the validity of strict patient selection in improving the success rate of inexperienced doctors. We enrolled 112 consecutive patients from 19 institutes, who were scheduled for repair between January and October in 2007. All patients were evaluated on the basis of a less-than-3mm reconstructed CT image. Mean patient age was 76±5.7 years. All cases satisfied the Zenith's anatomic prerequisites. Fifteen cases were excluded for various reasons, the major reason being insufficiency of the proximal landing zone (LZ) length, angle and contour. The second reason was difficulty to approach via the iliac artery. Ninety seven cases were included, of which 17 cases were low-risk candidates for EVAR. Medium-risk seventy two cases requiring some advice to avoid problems with device size, technique of implantation and choice of main-body side. Eight cases were high-risk, requiring the presence of an experienced surgeon. Excluded cases had significantly shorter proximal LZ, larger aortic diameters 15mm below the renal artery and tortuous access routes on preliminary measurement by inexperienced doctor. Perioperative mortality was 0%, while the major complications were injury to the iliac artery in one high-risk case and thromboembolism of the superficial femoral artery in another. Perioperative proximal type I endoleak occurred in 5 cases. In 3 of these cases, the endoleak was eliminated by implantation of a Palmatz stent. In the other 2 cases, it disappeared within a month without additional procedures. These cases had a significantly greater angle between the proximal LZ and the suprarenal aorta and significant amount of mural thromboses in the proximal LZ. Perioperative type III endoleak occurred in 3 cases. In all cases the endoleak was eliminated by additional procedure. Perioperative type II endoleak occurred 8 cases. In 3 of these cases, the endoleak disappeared within a month. In the 5 other cases, the endoleak did not disappear. Mid-term results showed iliac leg thromboembolism in one case and new type II endoleaks in 3 cases. Type II endoleak occurred in cases which had significantly greater angles between the proximal LZ and the aneurysm. The results which were evaluated in our center had excellent perioperative and mid-term outcomes. We think this evaluation system is effective for risk assessment and reduces the learning curve in EVAR. In anatomically marginal cases, it is possible for proximal type I endoleak and injury of the iliac artery to occur. It is impossible to exclude these marginal cases if treatment need for EVAR is a priority. In these cases, lessexperienced operators should be trained in troubleshooting techniques in advance.
7.Posttreatment cut-off levels of squamous cell carcinoma antigen as a prognostic factor in patients with locally advanced cervical cancer treated with radiotherapy.
Ryuji KAWAGUCHI ; Naoto FURUKAWA ; Hiroshi KOBAYASHI ; Isao ASAKAWA
Journal of Gynecologic Oncology 2013;24(4):313-320
OBJECTIVE: The aim of the present study was to assess prognostic factors for patients with locally advanced cervical cancer treated with radiotherapy as the primary treatment and to assess the posttreatment cut-off levels of squamous cell carcinoma antigen (SCC-Ag) to predict three-year overall survival (OS) rates. METHODS: One hundred and twenty-eight patients with cervical squamous cell carcinoma (International Federation of Gynecology and Obstetrics [FIGO] stage IIB-IVA) treated using radiotherapy or concurrent chemoradiotherapy were identified. Of these patients, 116 who had SCC-Ag levels >1.5 ng/mL prior to treatment were analyzed retrospectively. RESULTS: Median age was 68 years (range, 27 to 79 years). The complete response rate was 70.7% and the three-year OS rate was 61.1%. The median levels of pretreatment and posttreatment SCC-Ag were 11.5 ng/mL (range, 1.6 to 310.0 ng/mL) and 0.9 ng/mL (range, 0.4 to 41.0 ng/mL), respectively. Multivariate analysis showed that pretreatment anemia (p=0.041), pelvic lymph node metastasis (p=0.016) and posttreatment SCC-Ag levels (p=0.001) were independent prognostic factors for three-year OS. The SCC-Ag level cut-off point for three-year OS rates, calculated using a receiver operating characteristic curve, was 1.15 ng/mL (sensitivity, 80.0%; specificity, 74.0%). CONCLUSION: Pretreatment anemia and pelvic lymph node metastasis are poor prognostic factors in locally advanced cervical cancer. Furthermore, posttreatment SCC-Ag levels <1.15 ng/mL predicted better three-year OS rates.
Anemia
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Antigens, Neoplasm
;
Carcinoma, Squamous Cell
;
Chemoradiotherapy
;
Gynecology
;
Humans
;
Lymph Nodes
;
Multivariate Analysis
;
Neoplasm Metastasis
;
Obstetrics
;
ROC Curve
;
Sensitivity and Specificity
;
Serpins
;
Uterine Cervical Neoplasms
8.Efficacy and safety of venous thromboembolism prophylaxis with fondaparinux in women at risk after cesarean section.
Ryuji KAWAGUCHI ; Shoji HARUTA ; Hiroshi KOBAYASHI
Obstetrics & Gynecology Science 2017;60(6):535-541
OBJECTIVES: Cesarean section is associated with an increased risk for venous thromboembolism (VTE). The safety and efficacy of primary prophylaxis of fondaparinux, a synthetic sulfated pentasaccharide heparin analog, in women at risk after cesarean section is uncertain. METHODS: This was a retrospective study of 295 cases of pregnant women presenting to a tertiary referral center of Nara, Japan, to evaluate the usefulness of thromboprophylaxis with fondaparinux after cesarean delivery between 2011 and 2012. Patients were initially received unfractionated heparin (once 5,000 IU subcutaneously, twice a day), starting 6 hours after cesarean section for 24 hours, and then treated with fondaparinux (once 2.5 mg daily, subcutaneously) for 5 days. The primary efficacy end-point was an improvement in the incidence of symptomatic VTE or fatal post-cesarean pulmonary thromboembolism. The primary safety end-point was major bleeding during treatment. RESULTS: There were neither any episodes of symptomatic VTE cases nor maternal deaths. A total of 10 patients had a bleeding event. Major bleeding complication was observed in 2 (0.68%) of 295 patients receiving fondaparinux. Non-major bleeding into critical sites was observed in 8 patients, often at surgical sites, and recovery was not delayed. CONCLUSION: This study demonstrates the safety and efficacy of fondaparinux in women at high risk of VTE after cesarean section. Large phase trials comparing clinical outcomes with fondaparinux across a wide spectrum of patients are needed to confirm these observations.
Cesarean Section*
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Female
;
Hemorrhage
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Heparin
;
Humans
;
Incidence
;
Japan
;
Maternal Death
;
Pregnancy
;
Pregnant Women
;
Pulmonary Embolism
;
Retrospective Studies
;
Tertiary Care Centers
;
Venous Thromboembolism*
9.Cut-off value of D-dimer for prediction of deep venous thrombosis before treatment in ovarian cancer.
Ryuji KAWAGUCHI ; Naoto FURUKAWA ; Hiroshi KOBAYASHI
Journal of Gynecologic Oncology 2012;23(2):98-102
OBJECTIVE: The purpose of the present study was to elucidate the incidence of deep venous thrombosis (DVT) before treatment in ovarian cancer and the appropriate cut-off value of D-dimer (DD) for the diagnosis of DVT. METHODS: Between July 2007 and October 2008, eighty seven patients with presumed ovarian cancer (final diagnosis: ovarian cancer, n=59; borderline malignancy, n=28) were enrolled. Measurement of DD levels and subsequent venous ultrasonography were performed before treatment. RESULTS: The mean DD level was 4.1 microg/mL. Subsequent venous ultrasonography revealed DVT in 14 of 87 (16.1%) patients (ovarian cancer, 12 cases; borderline malignancy, 2 cases). None were found to have developed DVT if they had a DD level of <1.5 microg/mL. If 1.5 microg/mL was used as a cut-off value for DD levels to diagnose DVT, sensitivity, specificity, positive predictive value, and negative predictive value were 100%, 61.6%, 33.3%, and 100%. There was noclinical onset of postoperative pulmonary thromboembolism. CONCLUSION: Our data suggest that presumed ovarian cancer patients with at least more than 1.5 microg/mL should be examined using venous ultrasonogaphy to detect DVT.
Fibrin Fibrinogen Degradation Products
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Humans
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Incidence
;
Ovarian Neoplasms
;
Sensitivity and Specificity
;
Venous Thrombosis
10.CA-125 cut-off value as a predictor for complete interval debulking surgery after neoadjuvant chemotherapy in patients with advanced ovarian cancer.
Naoto FURUKAWA ; Yoshikazu SASAKI ; Aiko SHIGEMITSU ; Juria AKASAKA ; Seiji KANAYAMA ; Ryuji KAWAGUCHI ; Hiroshi KOBAYASHI
Journal of Gynecologic Oncology 2013;24(2):141-145
OBJECTIVE: In the present study, we evaluated changes in CA-125 cut-off values predictive of complete interval debulking surgery (IDS) after neoadjuvant chemotherapy (NAC) using receiver operating characteristic (ROC) analysis. METHODS: This retrospective single-institution study included patients with International Federation of Gynecology and Obstetrics (FIGO) stage III epithelial ovarian cancer and a pre-NAC serum CA-125 level of greater than 40 U/mL who were treated with neoadjuvant platinum-based chemotherapy followed by IDS between 1994 and 2009. Logistic regression analysis was used to evaluate univariate and independent multivariate associations with the effect of clinical, pathological, and CA-125 parameters on complete IDS, and ROC analysis was used to determine potential cut-off values of CA-125 for prediction of the possibility of complete IDS. RESULTS: Seventy-five patients were identified. Complete IDS was achieved in 46 (61.3%) patients and non-complete IDS was observed 29 (38.7%). Median pre-NAC CA-125 level was 639 U/mL (range, 57 to 6,539 U/mL) in the complete IDS group and 1,427 U/mL (range, 45 to 10,989 U/mL) in the non-complete IDS group. Median pre-IDS CA-125 level was 15 U/mL (range, 2 to 60 U/mL) in the complete IDS group and 53 U/mL (range, 5 to 980 U/mL) in the non-complete IDS group (p<0.001). Multivariate analyses performed with complete IDS as the endpoint revealed only pre-IDS CA-125 as an independent predictor. The odds ratio of non-complete IDS was 10.861 when the pre-IDS CA-125 level was greater than 20 U/mL. CONCLUSION: The present data suggest that in the setting of IDS after platinum-based NAC for advanced ovarian cancer, a pre-IDS CA-125 level less than 20 U/mL is an independent predictor of complete IDS.
Gynecology
;
Humans
;
Logistic Models
;
Multivariate Analysis
;
Neoplasms, Glandular and Epithelial
;
Obstetrics
;
Odds Ratio
;
Ovarian Neoplasms
;
Retrospective Studies
;
ROC Curve