1.Ascending Aortic Replacement for Acute Type A Aortic Dissection in a Patient with Anti-phospholipid Antibody Syndrome
Takahiro Taguchi ; Satoru Maeba ; Keitaro Watanabe
Japanese Journal of Cardiovascular Surgery 2010;39(5):265-268
Anti-phospholipid antibody syndrome (APLS) is characterized by the presence of anti-phospholipid antibodies, arterial or venous thrombosis, recurrent abortion, and thrombocytopenia. Although heart valve abnormalities are found in most patients with APLS, acute type A dissection associated with APLS is rare. A 44-year-old woman with systemic lupus erythematosus and APLS, who had been treated with corticosteroids, immunosuppressive agents, and warfarin, was admitted with severe back pain. Computed tomography demonstrated aortic dissection extending from the ascending to the abdominal aorta. Emergency ascending aorta replacement was performed. The hypercoagulation associated with APLS made it difficult to achieve optimal postoperative anticoagulant control. Moreover, corticosteroids and immunosuppressive agents may result in postoperative infection. However, this patient was discharged without complications 14 days after the operation.
2.Tricuspid Valve Repair for Active Infective Endocarditis Complicated by Vertebral Osteomyelitis and a Pancreatic Abscess
Keitaro Watanabe ; Satoru Maeba ; Takahiro Taguchi
Japanese Journal of Cardiovascular Surgery 2010;39(6):328-331
A 65-year-old man was admitted with a high fever and back pain. Because magnetic resonance imaging revealed osteomyelitis in the lumbar spine, we started antibiotic therapy. Echocardiography revealed large vegetation on the tricuspid valve, and abdominal contrast computed tomography revealed a pancreatic abscess. As the vegetation increased in size and mobility it became non-responsive to medical treatment, and surgical removal of the vegetation with tricuspid valve repair were therefore performed. After additional antibiotic therapy, he was discharged 42 days after surgery. No further recurrence of endocarditis has been observed as of the time of writing.
3.Education about kampo medicine at Keio University Medical School
Kenji WATANABE ; Ko NISHIMURA ; Atsusi ISHIGE ; Gregory A. PLOTNIKOFF ; Sadakazu AISO ; Masaki KITAJIMA ; Takahiro AMANO
Medical Education 2008;39(2):125-129
1) For third-year students at Keio University Medical School, 10 lectures are given about why kampo medicine is effective, Fourth-year students receive 8 lectures on kampo medicine and participate in independent study sessions 3 times a week for 4 months.
2) In lectures entitled “Why Is kampo Medicine Effective?”we introduce the functional mechanism of action of kampo medicine and address the skepticism of medical students. In the lecture series entitled “Kampo Medicine, ”we introduce the clinical foundations of kampo practice and provide students with a checklist of the key points of each lecture.
3) In the independent study sessions, several students perform mentored basic-science research into kampo's mechanism of action.
4.Appearance of Side Effects Related to Non-ionic Iodine Contrast Medium
Hiroaki Watanabe ; Hiroshi Azuma ; Hironao Tanaka ; Syunya Takeno ; Yasutaka Inoue ; Takahiro Inagaki ; Kunihiro Tobisawa ; Takahito Imai
Japanese Journal of Drug Informatics 2012;14(3):94-100
Objective: We investigated the incidence of side effects related to contrast medium employed in our hospital based on monitoring materials to improve the safety of contrast-enhanced examinations. Furthermore, we compared the incidence of side effects between the original product and generic drugs to confirm the safety of each preparation.
Methods: The survey period was from April 2007 until March 2011. Based on the number of patients who underwent contrast-enhanced examinations and that of patients with side effects, we calculated the incidence of side effects in our hospital, and confirmed its annual changes. Subsequently, we again collected the incidence of side effects per each manufacturer’s preparation employed, and confirmed the state of side effects of individual preparations. Furthermore, we evaluated the symptoms as side effects, interval until appearance, and treatment for side effects during the data collection period, as well as the subsequent state, symptoms as side effects, and interval until appearance. The chi square independence test was employed to compare the results among groups. p<0.05 was regarded as significant (paired test).
Results: There were no changes in the annual incidence of side effects. There were also no significant differences in the annual incidence of side effects among the preparations. Furthermore, there were no marked differences in the symptoms, interval until appearance, treatment for side effects, or subsequent state among the preparations.
Conclusion: We investigated the appearance of side effects regarding contrast-enhanced examinations for 4 years. We confirmed that there were no differences in the incidence of side effects among the preparations.
5.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.
6.ASSWS : A New Gait Assisting Device for Hemiplegic Patients —Development and Gait Analysis—
Eiji SUZUKI ; Taichi TACHIKAWA ; Tohru WATANABE ; Sakiko KAWAGUCHI ; Kouji TAKAHASHI ; Takahiro UENO
The Japanese Journal of Rehabilitation Medicine 2011;48(2):121-128
We have developed a new gait assisting device for patients with hemiplegia, by which a single therapist alone can work with : 1) swing of the paretic limb, 2) stance of the paretic limb, and 3) alternate lateral weight-shift during gait. This device (ASSWS : Assistance of Swing, Stance and Weight Shift) imitates the kinesiological complex (patellar ligament, quadriceps, iliotibial ligament and gluteus maximus) to maintain a standing posture for the lower extremities. We compared the results of a gait analysis using a motion analyzer for gait with ASSWS and gait without ASSWS. With ASSWS, the walking speed was faster, stride length was longer, and stride duration was shorter. No differences in floor reaction force were identified. With ASSWS, the flexion peak of the hip joint became larger and the knee joint was in a more flexed position throughout the walking cycle. Also, the joint moment of hip extension, hip flexion and knee extension all increased with use of the ASSWS.
7.Blood flow velocity in the anterior humeral circumflex artery and tear size can predict synovitis severity in patients with rotator cuff tears
Takahiro MACHIDA ; Takahiko HIROOKA ; Akihisa WATANABE ; Hinako KATAYAMA ; Yuki MATSUKUBO
Clinics in Shoulder and Elbow 2024;27(1):11-17
Rotator cuff tears are often associated with synovitis, but the ability of noninvasive ultrasonography to predict the severity of synovitis remains unclear. We investigated whether ultrasound parameters, namely peak systolic velocity in the anterior humeral circumflex artery and Doppler activity in the glenohumeral joint and subacromial space, reflect synovitis severity. Methods: A total of 54 patients undergoing arthroscopic rotator cuff repair were selected. Doppler ultrasound was used to measure peak systolic velocity in the anterior humeral circumflex artery and Doppler activity in the glenohumeral joint and subacromial space, and these values were compared with the intraoperative synovitis score in univariate and multivariate analyses. Results: Univariate analyses revealed that tear size, peak systolic velocity in the anterior humeral circumflex artery, and Doppler activity in the glenohumeral joint were associated with synovitis in the glenohumeral joint (P=0.02, P<0.001, P=0.02, respectively). In the subacromial space, tear size, peak systolic velocity in the anterior humeral circumflex artery, and Doppler activity in the subacromial space were associated with synovitis severity (P=0.02, P<0.001, P=0.02, respectively). Multivariate analyses indicated that tear size and peak systolic velocity in the anterior humeral circumflex artery were independently associated with synovitis scores in both the glenohumeral joint and the subacromial space (all P<0.05). Conclusions: These findings demonstrate that tear size and peak systolic velocity in the anterior humeral circumflex artery, which can both be measured noninvasively, are useful indicators of synovitis severity. Level of evidence: IV.
8.Efficacy of Slow Nutrient Drinking Test for Evaluating Postprandial Distress Symptom in Japanese Patients With Functional Dyspepsia
Takahiro WATANABE ; Tatsuhiro MASAOKA ; Hisako KAMEYAMA ; Takanori KANAI
Journal of Neurogastroenterology and Motility 2022;28(3):424-430
Background/Aims:
Functional dyspepsia (FD), one of the functional gastrointestinal disorders, is highly prevalent. Impaired gastric accommodation is proposed as a pathophysiology of FD. In order to assess gastric accommodation, a slow nutrient drinking test was developed. This study aims to evaluate the effectiveness of this slow nutrient drinking test among patients with FD in Japan.
Methods:
Asymptomatic/healthy participants (n = 26) and those with FD (n = 16), were enrolled. An infusion pump was used to deliver the liquid meal into cups. They were requested to score their meal-related and abdominal symptoms at 5-minute intervals, using a 100 mm visual analog scale. They were instructed to end the test when they felt unable to ingest more or until after 50 minutes.
Results:
The test ending time was significantly shorter in patients with FD than in healthy participants (22.3 ± 10.6 vs 45.0 ± 7.5 minutes, P < 0.001). The receiver operating characteristic curve indicated that the optimal cutoff time for detecting patients with FD was 30 minutes. The severity of meal-related and abdominal symptoms between healthy participants and those with FD was continuously different. Univariate and multivariate analyses revealed that the presence of symptoms of postprandial distress syndrome contributed to the short test ending time.
Conclusion
The 30-minute slow nutrient drinking test is a minimally invasive method of effectively evaluating symptoms of postprandial distress syndrome among patients with FD, in Japan.
9.Health-Related Quality of Life is Associated With Pain, Kinesiophobia, and Physical Activity in Individuals Who Underwent Cervical Spine Surgery
Daisuke HIGUCHI ; Yu KONDO ; Yuta WATANABE ; Takahiro MIKI
Annals of Rehabilitation Medicine 2024;48(1):57-64
Objective:
To determine the association between health-related quality of life (HRQOL) and neck pain, kinesiophobia, and modalities of physical activity in individuals with postoperative degenerative cervical myelopathy and radiculopathy (DCM/R) because postoperative pain after cervical spine surgery is likely to persist, causing kinesiophobia and avoidance of physical activity.
Methods:
A questionnaire was distributed to 280 individuals with DCM/R. The questionnaire comprised the following four items: HRQOL (EuroQol 5-dimensions 5-level), neck pain (numerical rating scale [NRS]), kinesiophobia (11-item Tampa Scale for Kinesiophobia [TSK-11]), and physical activity (paid work, light exercise, walking, strength training, and gardening). Hierarchical multiple regression analysis was performed using the NRS, TSK-11, and physical activity as independent variables.
Results:
In total, 126 individuals provided analyzable responses (45.0%). After including the NRS score as an independent variable to the multiple regression equation for participants’ background, the independent rate of the regression equation significantly improved by only 4.1% (R2=0.153). The addition of the TSK-11 score significantly improved this effect by 11.1% (R2=0.264). Finally, the addition of physical activity also significantly improved the explanatory rate by 9.9% (R2=0.363).
Conclusion
Neck pain, kinesiophobia, and physical activity (specifically paid work and walking) were independently associated with HRQOL in individuals with postoperative DCM/R.
10.Five-year Survival Associated with Stage I Gastric Cancer after Resection of Early Recurrence at Nodal Station No. 14v: a Case Report.
Iku ABE ; Takahiro KINOSHITA ; Akio KAITO ; Hideki SUNAGAWA ; Masahiro WATANABE ; Shizuki SUGITA ; Akiko TONOUCHI ; Reo SATO
Journal of Gastric Cancer 2017;17(2):186-191
The role of nodal station No. 14v (along the superior mesenteric vein) in lymphadenectomy for distal gastric cancer remains elusive. A 73-year-old woman underwent endoscopic submucosal dissection for gastric cancer, and was referred to our division for additional surgery because of pathologically non-curative resection. A laparoscopic distal gastrectomy with D1+ dissection was performed, with a final diagnosis of pT1bN1M0, Stage IB (2 nodal metastases to No. 6). Four months post-surgery, abdominal computed tomography revealed a 14-mm solitary nodule along the superior mesenteric vein. The lesion was excised and pathologically identified as a lymph node metastasis. Adjuvant chemotherapy with tegafur-gimeracil-oteracil potassium (S-1) was administered for the metastasis. Presently the patient survives without recurrence, 5.5 years after the second operation. Our findings suggest that there is lymphatic flow from the No. 6 to the No. 14v nodal station. Some patients with a No. 6 metastasis may benefit from a No. 14v lymphadenectomy, even in early-staged disease.
Aged
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Chemotherapy, Adjuvant
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Diagnosis
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Early Detection of Cancer
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Female
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Gastrectomy
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Humans
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Lymph Node Excision
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Lymph Nodes
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Mesenteric Veins
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Neoplasm Metastasis
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Potassium
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Recurrence*
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Stomach Neoplasms*