1.Modified Aortic Root Remodeling Combined with Aortic Valve Repair Technique for Severe Aortic Regurgitation Resulting from Prolapse of the Right Coronary Cusp and Aortic Root Dilatation
Manabu Yamasaki ; Sunao Watanabe ; Kohei Abe ; Michiko Uenishi ; Kohei Kawazoe
Japanese Journal of Cardiovascular Surgery 2009;38(6):398-401
A 70-year-old man who had been followed up in our outpatient clinic for mild aortic regurgitation underwent curative surgery for progression of the regurgitation due to a prolapsed right coronary cusp, associated with annular dilatation and aortic root aneurysm formation. The Operation consisted of subvalvular circular annuloplasty to reduce the size of the aortic annulus, adjustable leaflet suspension for the prolapsed right coronary cusp, and modified aortic root remodeling, which replaced the Valsalva sinus of both non and right coronary cusps while sparing the Valsalva sinus of the left coronary cusp. Coronary artery bypass grafting was additionally performed for the 90% stenosis of the proximal right coronary artery segment. The postoperative course was uneventful with no need of blood transfusion. He was discharged from the hospital 10 days postoperatively. This combination of valvuloplasty with valve-sparing aortic root reconstruction procedure can be useful.
2.Assessment of Clinical Features and Higher Brain Dysfunction in Anti-NMDA Receptor Encephalitis
Shihori Kitae ; Seiichi Tsujino ; Akiko Toki ; Midori Yamanaka ; Manabu Watanabe
The Japanese Journal of Rehabilitation Medicine 2016;53(4):330-336
We report five cases of anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis. Five women (27-38 years), Who-presented with psychiatric symptoms, neurological complications, and decreased consciousness, were diagnosed with anti-NMDAR encephalitis after testing positive for serum anti-NMDAR antibodies. The mean(±SD)for hospitalization duration was 272.4(±144.8)days. All patients presented with respiratory failure due to central hypoventilation and required mechanical ventilation for 50.2(±13.1)days on average. Four patients showed no abnormal findings upon brain MRI, one showed high intensity lesions in the right temporal cortex and bilaterally in the hippocampus on T2 weighted images. Higher brain function assessment revealed an overall decrease in intelligence, attention, memory, and executive function in all patients. Temporal assessments revealed progressive improvement in these dysfunctions over several years. Four patients presented with deep venous thrombosis, articular contracture, ectopic ossification, and compression paralysis during the first immobility episode. Two had severely impaired communication and ability to perform activities of daily living when admitted for rehabilitation. However, eventually all the patients attained a premorbid state.
Anti-NMDAR encephalitis possibly results from reversible synaptic dysfunction;therefore, it has a better functional prognosis compared with classical limbic encephalitis and other paraneoplastic neurologic syndromes. Previous studies found abnormalities in the limbic area on MRI in about 25% of patients, although other findings were non-specific. Prevention of disuse syndrome due to prolonged immobility is important in acute phase rehabilitation. Our study shows that long-term temporal assessments of higher brain function are necessary and useful in the chronic stage.
3.Determination of Adequate Analgesic Dose of Oxycodone Injection in Opioid-switching from Transdermal Fentanyl in Patients with Cancer-related Pain
Manabu Tatokoro ; Keita Watanabe ; Kumiko Matsushita ; Toru Miyazaki ; Satoshi Miyake
Palliative Care Research 2017;12(1):301-305
Opioid-switching (OS) is usually performed with conversion methods based on the equianalgesic dose table. However, the conversion ratios might lead to significant differences in clinical practice. No clear guideline exists for safe, effective switching from transdermal fentanyl (TF) to oxycodone injection (OXJ). We retrospectively investigated the adequate analgesia dose of OXJ in OS from TF by comparing with the equianalgesic calculated dose based on the conversion ratio of 1.0 : 41.7 between TF and OXJ. Patients with a pain scale score of 0 were assigned to the “NRS/VRS=0” group (n=4), and the remaining patients were assigned to the “NRS/VRS>0” group (n=27). During a 4-year period, 31 of 49 patients with cancer-related pain who underwent OS from TF to OXJ were investigated. All patients in the NRS/VRS=0 group (4/4, 100%) and most in the NRS/VRS>0 group (23/27, 85%) achieved adequate analgesia. Among the 27 patients with adequate analgesia, the median effective OXJ dose was 28% (interquartile range, 21-47) of the equianalgesic calculated dose in the well-controlled group and 103% (interquartile range, 71-164) in the poor analgesia group. Strong drowsiness developed in two patients the day after OS, and the OXJ dose was decreased. Our findings suggest that in patients without pain, it might be necessary to reduce the OXJ dose to approximately 30% of the equianalgesic calculated dose for safe OS from TF. Pain intensity and drowsiness due to an opioid overdose should be carefully monitored and may require dose adjustment.
4.Review of Surgical Cases of Colorectal Cancer
Nobuyiki KOBAYASHI ; Fusakuni KURODA ; Takashi DOI ; Makoto KINOUCHI ; Yasuhiro WATANABE ; Naoyuki KANEKO ; Manabu SATOU
Journal of the Japanese Association of Rural Medicine 2004;53(1):75-79
During the period of 25 years from January 1978 through December 2002, a total of 808 colorectal cancer cases were operated on in Shirakawa Kosei General Hospital. The number of sugical resection cases came to 713 (ratio : 88.25%). Curative resection was performed on 593 cases (ratio : 73.4%). The total number of cases was broken down into 446 cases of cancer of the colon and 369 cases of cancer of the rectum (7 multiple cancer cases included). By sex, male cases numbered 329 and female cases 379. Clinically or histologically, many cases were diagnosed as stage IIIa or stage II cancer. The 5-year-survival rate for the resection cases was calculated at 67.2% and that for the cure resection cases, at 79.5%.
Excision
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Malignant Neoplasms
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Colorectal Cancer
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5.Evaluating a Palliative Medicine Education Program for Undergraduate Medical Students at a Regional Hospice
Manabu Tatokoro ; Kumiko Matsushita ; Keita Watanabe ; Eriko Yamanaka ; Toru Miyazaki ; Mihoko Takahashi
Palliative Care Research 2017;12(2):911-917
Background: There is increasing demand for clinical clerkships in palliative medicine, though conventional medical education has focused only on providing students with sufficient medical knowledge and skills. In Japan, there is no standard program for palliative medicine in undergraduate medical education. Our hospice, in cooperation with a clinical clerkship for palliative medicine launched by Tokyo Medical and Dental University, has developed its own comprehensive bedside learning curriculum. Aim: This study aimed to evaluate the efficacy of the program. Methods: The curriculum involves not only experience in hospice care, ward rounds, and interviews with terminally ill patients, it also provides each medical student with educational sessions moderated by certified hospice nurses and pharmacists. We conducted a self-administered five-point scale questionnaire (with a higher score indicating higher satisfaction) to assess students’ satisfaction and understanding of the program. We also conducted a questionnaire on basic palliative medicine knowledge before and after the program. Results: Twenty students took part in the program. Ratios of scores of 4 or 5 for satisfaction and understanding of the program were 100% and 95%, respectively. Mean rates of correct answers on the pre-program and post-program test were 51% and 85%, respectively; showing a marked increase and emphasizing the educational significance of our curriculum. Students evidently benefit from the experience of bedside learning, and 95% reported having recommended the program to their juniors. Conclusion: These outcomes suggest the program is effective toward developing a standard education program in palliative medicine.
6.Utility of MRI in prostate cancer
Masami NIWA ; Hideto ANDO ; Itaru HIRAMATSU ; Eriko ITO ; Tuneo WATANABE ; Masao FUJIMOTO ; Daisuke MISAWA ; Nobuhito ONOGI ; Takuya KOIDE ; Manabu OKANO
Journal of the Japanese Association of Rural Medicine 2007;56(4):624-631
For diagnosis of prostate cancer, MRI was performed in 91 patients prior to prostate biopsy, and prostate cancer was detected in 37 patients. The ability of MRI diagnosis compared with biopsy was accuracy 0.84, sensitivity 0.95, and specificity 0.76.In 26 patients (14 patients with prostate cancer) from whom MR images were obtained by diffusion weighted imaging, ADC value and PSA value showed a reverse correlation significantly.The ADC value was 0.97±0.23-3mm2/sec in the cancer area, 1.51±0.20-3mm2/sec in the normal peripheral zone, and 1.47±0.12-3mm2/sec in the normal central zone. The ADC value in the cancer area was smaller than that in the normal peripheral area or in the normal central zone significantly (p<0.001).The relation between ADC value and Gleason score did not show any correlation. However, when the Gleason score was under 6, ADC value was 1.11±0.20-3mm2/sec, and when it was over 7, ADC value was 0.81±0.19-3mm2/sec which showed a lower value than the ADC value with Gleason score under 6 significantly (p<0.05).MRI was effective for visualization of prostate cancer. We concluded that pre-biopsy MRI in prostate cancer would allow not only systemic-biopsy but also accurate targeting-biopsy, and it would improve the diagnosric ability of biopsy.
Cancer of Prostate
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biopsy characteristics
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Magnetic Resonance Imaging
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GLEASON GRADING FOR PROSTATIC CANCER
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7.Prevention of Homologous Blood Transfusion by Intraoperative Predonation on Valvular Surgery without Preoperative Autologous Donation
Koichi Sato ; Masakazu Sogawa ; Osamu Namura ; Chizuo Kikuchi ; Manabu Isoda ; Junzo Watanabe ; Takeshi Okamoto ; Takehito Mishima ; Jun-ichi Hayashi
Japanese Journal of Cardiovascular Surgery 2006;35(1):1-4
Though preoperative autologous donation is not acceptable for all cases partly because some are preoperatively in a severe condition, intraoperative predonation is possible in almost all cases. We retrospectively evaluated the major factors related to the prevention of homologous blood transfusion by intraoperative predonation in 25 cases following valvular surgery without preoperative autologous donation. Homologous blood was not transfused in 18 cases {Group-(-)} but in 7 cases only after CPB {Group-(+)}. The male/female ratio, type of operation, body weight, CPB dilution, CPB duration, and perioperative change in hematocrit were comparable in the 2 groups. However, the autologous blood pooled before CPB in Group-(-) was significantly more than in Group-(+) (11.3±2.5 vs 7.3±1.8ml/kg, p<0.001). In conclusion, homologous blood transfusion may be prevented by appropriate intraoperative predonation during surgery for valvular disease.
8.Characteristics of Business Conditions of Small-Scale Multifunctional In-home Nursing Care Facilities: Secondary Analysis with Text Mining
Kenji AWAMURA ; Manabu NII ; Rika WATANABE ; Eiko NAKANISHI ; Masashi MANABE ; Takanori KAWANO ; Kuniko HAGA ; Makiko MUYA ; Reiko SAKASHITA ; Hiroshi ONO
An Official Journal of the Japan Primary Care Association 2023;46(4):132-141
Introduction: The purpose of this study was to clarify the relationship between the available service information on small-scale multifunctional in-home nursing care (KANTAKI) and its operational status via text mining.Methods: We obtained nationwide textual information on KANTAKI from the Nursing Care Service Information Disclosure System and the Ministry of Health, Labour, and Welfare, and analyzed the characteristics of the word usage using KH Coder. The number of users and employees and the implementation of services were compared among the facilities that used terms relating to medical dependency and end-of-life care, which are KANTAKI characteristics, and with other facilities.Results: The facilities that used terms relating to medical dependency and end-of-life care showed significantly more users requiring nursing care level 5 and more full-time nursing staff than those not using such terms. Moreover, regarding service provision, the rate of procedures was significantly higher in 11 of 12 items, except for stoma.Conclusion: The facilities that use terms relating to medical dependency and end-of-life care in their information have more users and provide a greater variety of services. In the future, educational support is required to enable facility managers to understand the services and translate them into their work.
9.Use of the Prognostic Nutritional Index to predict clinical outcomes of patients with terminal stage cancer
Yoichi Nakamura ; Jiro Nagao ; Yoshihisa Saida ; Manabu Watanabe ; Yasushi Okamoto ; Koji Asai ; Toshiyuki Enomoto ; Takaharu Kiribayashi ; Shinya Kusachi
Palliative Care Research 2013;8(2):199-202
Introduction: The importance of estimating the prognosis of advanced cancer patients is well known, but clinicians do not estimate survival time accurately. Since there is a need for an objective index to estimate survival time, the utility of the Prognostic Nutritional Index (PNI), which depends only on objective factors, was evaluated. Methods: The PNI was calculated using the following formula, PNI=10×serum albumin value (g/dL)+0.005×lymphocyte count in peripheral blood, at 3 months, 2 months, 1 month, 3 weeks, 2 weeks, 1 week, and within 3 days before death in 278 cancer patients (166 men, 112 women; age range, 33-99 years; mean age, 69.8 years) who died in a hospital surgical unit. Results: Sites of primary diseases included lung, breast, esophagus, stomach, colorectum, liver, biliary tract, and pancreas. The PNI values showed a gradual decrease over time. Changes in the PNI values were lower in non-gastrointestinal cancer patients than in gastrointestinal cancer patients. The mean PNI value was significantly higher in patients who lived >3 weeks (38.8) than in those who died within 3 weeks (32.4). When the PNI cut-off point was set at 35, and it was assumed that the life expectancy was within 3 weeks in cases with PNI <35, the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were 74.8%, 62.2%, 68.1%, and 69.6%, respectively. Discussion: The PNI appears to be a useful and simple parameter to predict clinical outcomes of patients with terminal stage cancer. Particularly, the PNI is considered feasible for gastrointestinal cancer patients.
10.A Case of Aorto-caval Fistula Due to Abdominal Aortic Aneurysm: The Effectiveness of Balloon Occlusion Catheter.
Shoh TATEBE ; Hajime OHZEKI ; Shoh-ichi TSUCHIDA ; Jun-ichi HAYASHI ; Akira SAITOH ; Kazuo YAMAMOTO ; Takehiro WATANABE ; Manabu HAGA ; Shoji EGUCHI
Japanese Journal of Cardiovascular Surgery 1992;21(6):605-608
A case of 65-year-old man of aorto-caval fistula induced by ruptured abdominal aortic aneurysm is reported. The symptoms were hematuria and chest pain, and an emergent operation was performed. In the operation, Fogarty's balloon occlusion catheter was used to reduce bleeding from inferior vena cava, and to prevent pulmonary embolism. The fistula was 3cm in size, and abdominal aorta was replaced with a low porosity polyester Y-graft. The symptoms of pulmonary congestion and hematuria were improved after operation. The balloon occlusion catheter was effective for reducing bleeding from IVC, and prevention from pulmonary embolism after operation.