1.Late Aortic Dissection after Aortic Valve Replacement for Aortic Regurgitation with Slight Aortic Dilatation Successfully Repaired by the Bentall Procedure.
Shunji Uchita ; Sunao Watanabe ; Kazuhide Hayashi ; Hideki Yamanishi
Japanese Journal of Cardiovascular Surgery 1994;23(5):355-359
We report a 57-year-old male who suffered from ascending aortic aneurysmal dilatation complicated with acute localized dissection. He had received aortic valve replacement with a prosthesis for severe aortic regurgitation resulting from valve degeneration and annular dilatation 4 years previously at which time the maximal ascending aortic diameter had been 45mm so that a procedure for the aorta itself was not done. On the present occasion an aortogram showed a maximal aortic diameter of 90mm and localized dissection from above the right coronary ostium to near the connection to the brachiocephalic artery. A successful composite valve-graft replacement of the ascending aorta (Bentall procedure with Piehler's modification) was carried out on a semi-emergency basis. This experience with this case implies that certain intervention for associated moderate aortic dilatation should be considered when an aortic valve replacement is performed.
2.Success in Treatment of Pulmonary Fibrosis Caused by Paraquat: Report to Two Cases.
Shunji OHKUBO ; Keiji KIMURA ; Hajime WATANABE ; Masato HAYASHI ; Osamu MIURA ; Shiroh SASAKI
Journal of the Japanese Association of Rural Medicine 1996;45(4):548-554
We report two cases of farm chemical poisoning which were treated successfully. Two elderly men separately swallowed down paraquat/diquat solutions in an attempt to kill themselves, and resultantly developed pulmonary fibrosis. After steroid therapy, clinical symptoms desappeared, although a slight degree of abnormality remained on chest X-rays. Case 1: a 57-year-old man; the amount of ingestion, 100 ml; hospitalized 2 hours after ingestion; shock, (-); urinary PQ reactoin, (2); serum PQ level, 1.14 ug/ml; pulmonary injury at first examinatoin, (-); pulmonary manifestation of symptoms, at day 3 after hospitalization; minimum Pao2, 67.6 mmHg. Case 2: a 65-year-old man; the amount of ingestion, one gulp; hospitalized 27 minutes after ingestion ; shock, (-); urinary PQ reactoin, (3+); serum PQ level, 6.6ug/mg; pulmonary injury at first examination, (-); pulmonary manifestation of symptoms, at day 5 after hospitalization; minimum Pao2, 58.3mmHg. For treatment, gastrointestinal lavage, forced diuresis and direct hemoperfusion were performed in both cases. Steroid pulse therapy was followed by repeated oral administration of large doses of steroid.
Hepatic and renal disorders were transient. Pao2 was normal when the patients were discharged. The primary reasons we could save their lives are probably that the amount of PQ ingestion was relatively small, hemodialysis was performed repeatedly at early stages, and that large amounts of steroid were used immediately after the onset of pulmonary fibrosis.
3.Questionnaire survey of Home-Visit Nursing Care of elderly Diabetic Patients
Shunji HORIKAWA ; Nobuko TADASE ; Mieko KIYOKAMI ; Takayasu TABATA ; Maki SAKURAI ; Chikako WATANABE ; Hitomi OCHIAI ; Fumi OKIDA
Journal of the Japanese Association of Rural Medicine 2009;58(2):79-84
The number of elderly diabetic patients has continued to increase year by year. Home-visit nursing care is beneficial to homebound elderly diabetic patients and there is a large number of senior citizens utilizing this form of health service. We conducted a questionnaire survey of home-visit nursing care of elderly diabetic patients. Those queried were participants in the diabetes workshop. Eighty-five of them responded to our questionnaire.The results showed that 87% of the respondents experienced care of diabetic patients and acute complications of hypoglycemia and hyperglycemia as well. It was also found that many home helpers extended assistance in drug compliance, indicating that home helpers play an important role in the medical care of elderly diabetic patients.On the other hand, many problems became apparent such as lack of observation of foot care, lack of knowledge of methods of treating hypoglycemia, and inadequate observation of drug compliance due to the limited availability of home visit time.Training and collaboration of local home-visit nursing care personnel are considered necessary in the future in order to improve on the home care of elderly diabetic patients.
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4.Use of Aortic Valved Grafts for Apico-aortic Conduit Bypass
Sojiro Sata ; Ryusuke Suzuki ; Toshiaki Watanabe ; Mai Matsukawa ; Keiko Hiroshige ; Shunji Osaka ; Toshiya Koyanagi ; Takahiro Takemura
Japanese Journal of Cardiovascular Surgery 2010;39(5):250-253
We describe the case of a 60-year-old woman with severe aortic stenosis and severe calcification of the thoracic aorta, who underwent an apico-aortic conduit bypass using an aortic valved graft. Because of stenosis of the annulus of the aortic valve and severe calcification of the thoracic aorta (porcelain aorta), we did not perform ordinary aortic valve replacement. Instead, apico-aortic conduit bypass surgery was performed using a St. Jude Medical Aortic Valved Graft (19-20 mm : St. Jude Medical, St. Paul, MN, USA) and cardiopulmonary bypass (CPB) surgery was performed using descending aortic perfusion and left pulmonary artery drainage, while the subject was in the right decubitus position. The descending aorta was clamped and a 20-mm graft (Hemashield Platinum ; Boston Scientific/Medi-tech, Natick, MA, USA) was sutured to it. Under ventricular fibrillation, the left ventricular apex was circularly resected using a puncher with a diameter identical to that of the 20-mm graft, in order to create a new outflow for the conduit bypass. The graft was sutured to the outflow, and a torus-shaped equine pericardial sheet was used to reinforce the suture line. After recovery of the heartbeat, the aortic valved graft was first sutured to the graft at the outflow and then to the graft at the descending aorta. The CPB time was 285 min and ventricular fibrillation time was 36 min. Therefore, the benefits of using an aortic valved conduit for apico-aortic conduit bypass are reduced operation time, since there is no need to prepare a handmade valve conduit, and easy management of the grafts which are made of the same material.
5.Usefulness of Gd-EOB-DTPA-enhanced MRI for evaluating the potential for early development of hepatocellular carcinoma after HCV eradication by direct-acting antiviral treatment
Naoki MORIMOTO ; Kouichi MIURA ; Shunji WATANABE ; Mamiko TSUKUI ; Yoshinari TAKAOKA ; Hiroaki NOMOTO ; Kozue MURAYAMA ; Takuya HIROSAWA ; Rie GOKA ; Naoki KUNITOMO ; Hiroyasu NAKAMURA ; Hideharu SUGIMOTO ; Norio ISODA ; Hironori YAMAMOTO
Journal of Rural Medicine 2019;14(1):78-86
Objective: The development of hepatocellular carcinoma (HCC) is not uncommon in patients who achieve eradication of the hepatitis C virus through direct-acting antiviral (DAA) treatment. The aim of this study was to identify the patients at high risk for novel HCC development after a sustained virologic response (SVR) by DAA treatment.Patients and Methods: A total of 518 patients with no history of HCC treatment and who achieved SVR by DAA treatment were evaluated retrospectively. The correlations between HCC development and the patients’ characteristics were evaluated. For patients who underwent gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance imaging (MRI) or dynamic contrast-enhanced computed tomography, the relationship between the imaging findings and subsequent HCC development was also assessed.Results: HCC developed newly in 22 patients, and the 1-year and 3-year cumulative HCC rates were 2.0% and 8.5%, respectively. In multivariate analysis, a FIB-4 index >4.0 and a post-treatment α-fetoprotein >4.0 ng/ml were significant risk factors for HCC. In 26 of 118 patients who underwent an MRI before DAA treatment, a non-hypervascular hypo-intense nodule was seen in the hepatobiliary phase, and in 6 of 182 patients who underwent a CT, a non-hypervascular hypo-enhanced nodule was seen in the delayed phase. The sensitivity and specificity of the MRI-positive findings for the subsequent development of HCC were 0.92 and 0.87, respectively, and those of the CT were 0.40 and 0.99, respectively. In multivariate analysis of patients who underwent an MRI, a non-hypervascular hypo-intense nodule was the only factor that was significantly related to HCC development (HR 32.4, p = 0.001).Conclusion: Gd-EOB-DTPA-enhanced MRI was found to be reliable for risk evaluation of subsequent HCC development in patients after SVR by DAA treatment. Patients with a non-hypervascular hypo-intense nodule need more careful observation for incident HCC.
6.Efficacy and safety of glecaprevir and pibrentasvir combination therapy in old-aged patients with chronic hepatitis C virus infection
Shunji WATANABE ; Naoki MORIMOTO ; Kouichi MIURA ; Toshimitsu MUROHISA ; Toshiyuki TAHARA ; Takashi SATO ; Shigeo TANO ; Yukimura FUKAYA ; Hidekazu KURATA ; Yukishige OKAMURA ; Norikatsu NUMAO ; Keita UEHARA ; Kozue MURAYAMA ; Katsuyuki NAKAZAWA ; Hitoshi SUGAYA ; Hiroaki YOSHIZUMI ; Makoto IIJIMA ; Mamiko TSUKUI ; Takuya HIROSAWA ; Yoshinari TAKAOKA ; Hiroaki NOMOTO ; Hiroshi MAEDA ; Rie GOKA ; Norio ISODA ; Hironori YAMAMOTO
Journal of Rural Medicine 2020;15(4):139-145
Objective: Combination therapy with glecaprevir and pibrentasvir (G/P) has been shown to provide a sustained virologic response (SVR) rate of >97% in patients with chronic hepatitis C virus (HCV) infection in the first published real-world Japanese data. However, a recently published study showed that the treatment was often discontinued in patients ≥75 years old, resulting in low SVR in intention-to-treat (ITT) analysis. Thus, our aim was to evaluate real-world data for G/P therapy in patients ≥75 years of age, the population density of which is high in “rural” regions.Patients and Methods: We conducted a multicenter study to assess the efficacy and safety of G/P therapy for chronic HCV infection, in the North Kanto area in Japan.Results: Of the 308 patients enrolled, 294 (95.5%) completed the treatment according to the protocol. In ITT and per-protocol analyses, the overall SVR12 rate was 97.1% and 99.7%, respectively. The old-aged patients group consisted of 59 participants, 56 of whom (94.9%) completed the scheduled protocol. Although old-aged patients tended to have non-SVR factors such as liver cirrhosis, history of HCC, and prior DAA therapies, the SVR12 rates in old-aged patients were 98.3% and 100% in the ITT and PP analyses, respectively. Of 308 patients enrolled, adverse events were observed in 74 patients (24.0%), with grade ≥3 events in 8 patients (2.6%). There was no significant difference in any grade and grade ≥3 adverse events between the old-aged group and the rest of the study participants. Only one patient discontinued the treatment because of adverse events.Conclusion: G/P therapy is effective and safe for old-aged patients.