1.Medical Education in Germany.
Koji TAKANO ; Nobuhiko SAITO ; Akitsugu OJIMA ; Junichi SUZUKI
Medical Education 1995;26(2):135-137
2.Clinical Experience of Right Heart Bypass Using Heparin-coated Tube and Roller Pump System.
Hajime OHZEKI ; Satosi NAKAZAWA ; Akira SAITO ; Hisanaga MORO ; Hirofumi OKAZAKI ; Junichi HAYASHI ; Haruo MIYAMURA ; Shoji EGUCHI
Japanese Journal of Cardiovascular Surgery 1992;21(5):510-514
A 47 year-old man with frequent attacks of ventricular tachycardia (VT) due to arrhythmogenic right ventricular dysplasia (ARVD) developed severe right heart failure following cryoablation of the multiple VT focuses. Inotropic support and intraaortic balloon pumping failed to maintain the systemic circulation, so that we performed the right heart bypass (RHB) using a heparin-coated tube and roller pump. With the use of RHB, systemic circulation improved. We attempted to wean the patient off after 14 days RHB support. However this was unsuccessful because of poor RV function, and RHB was recommenced. The patient finally died of multiple organ failure on the 21st postoperative day, but the major organ function was well maintained for at least two weeks. The heparin-coated tube and roller pump system is easy to handle, and is suitable as a short term lifesaving adjunct for severe right ventricular failure.
3.Long-term Results of Direct Surgical Approach to Left Main Coronary Artery.
Hisanaga MORO ; Fumiaki OGUMA ; Osamu NAMURA ; Mitsuo UENO ; Akira SAITO ; Junichi HAYASHI ; Haruo MIYAMURA ; Shoji EGUCHI
Japanese Journal of Cardiovascular Surgery 1993;22(4):334-338
Five patients with isolated stenosis of the left main coronary artery or stenotic ostial lesions underwent direct coronary artery surgery. These surgical approaches included vein patch angioplasty in 2 cases, punch out endarterectomy in 1 case, and resection of the thickened aortic wall and transaortic endarterectomy in 2 cases. Early results were satisfactory, except for one case who died due to severe LOS and MOF. In the late postoperative period, one case of vein patch angioplasty died due to cerebral bleeding, and in the other case, stenosis existed in position of distal patch anastomosis. Since direct coronary artery surgery was successful in both early and late postoperative fidings, it is believed to be useful and safe technique if the candidates are selected properly.
4.Effect of Saiko-ka-ryukotsu-borei-to on the Monoamine-Related Substances in Several Regions of Mouse Brain.
Tadanobu ITO ; Shigeo MURAI ; Hiroko SAITO ; Maki ITO ; Junichi ODASHIMA ; Seisuke MICHIJIRI ; Nobutaka HASHIMOTO
Kampo Medicine 1994;45(1):97-106
We studied the effect of Saiko-ka-ryukotsu-borei-to (crude extract powder for research purposes) on central monoamine-related substances in mice. The formulation was given in a dose of 50mg/kg or 400mg/kg and was administered once or repeatedly (twice a day for seven days). The brain was removed and segmented in the conventional method. The monoamine-related substances were measured by a method using HPLC-ECD. The main results were as follows. The single or repeated administration of 50mg/kg increased DOPAC and HVA contents in the cerebral cortex. In the hypothalamus, the single 50mg/kg treatment decreased NE, and the repeated 50mg/kg treatment decreased NE but increased DOPA. In the corpus striatum, the single 50mg/kg administration increased DA, DOPAC, HVA, and 5-HIAA while the repeated administration increased NE and MHPG as well. In this region, the single 400mg/kg treatment increased NE and 5-HIAA, and the repeated treatment increased NE. In the hyppocampus, the repeated 50mg/kg treatment increased MHPG, and the repeated 400mg/kg treatment decreased HVA. These results indicate that the effect of this formulation on murine brain monoamines is greater at 50mg/kg than at 400mg/kg and that the effect varies among the regions of the brain.
5.A successful treatment using gabapentin against hot flashes due to LH-RH agonist in a patient with advanced prostate cancer
Hiroto Araki ; Kousuke Yamanaka ; Takashi Sakai ; Meiko Matsuura ; Misuzu Okai ; Tomoharu Tanaka ; Yukiko Saito ; Hiromi Aonuma ; Kenji Mukai ; Naoyuki Katayama ; Junichi Saito
Palliative Care Research 2009;4(2):334-338
Purpose: To report a case of successful treatment using gabapentin against hot flashes due to LH-RH agonist in a patient with advanced prostate cancer. Case summary: A male patient in his seventies with advanced prostate cancer had hot flashes due to LH-RH agonist therapy. The patient began to notice hot flashes within a few months after starting hormone treatment. Oral gabapentin was administered at a starting dose of 400mg/day and was gradually escalated to 1,200mg/day. Within 7 days of administration, the patient achieved a partial improvement of his symptoms. After 17 days of gabapentin therapy, the hot flashes significantly improved. While the patient was taking a maintenance dose of 1,200mg/day, he remained to be asymptomatic. Conclusion: There are only a few reports (none in Japan) that show effectiveness of gabapentin against hot flashes due to hormone treatment in male patients with prostate cancer. Although the mechanism of the hot flash-relieving effect of gabapentin is not fully understood, this case report indicates that gabapentin may help treating patients suffering from intractable hot flashes. Palliat Care Res 2009; 4(2): 334-338
6.Parotid mandibular bone defect: A case report emphasizing imaging features in plain radiographs and magnetic resonance imaging.
Miki HISATOMI ; Luciana MUNHOZ ; Junichi ASAUMI ; Emiko Saito ARITA
Imaging Science in Dentistry 2017;47(4):269-273
Mandibular bone depression, also known as Stafne bone cavity, is defined as a bone depression filled mainly with salivary gland tissue. Parotid gland bone defects are infrequently observed. We report the case of a 52-year-old male patient who underwent radiographic examinations due to temporomandibular joint dysfunction, and a radiolucent area was detected in the mandibular ramus, with a provisional diagnosis of traumatic bone cyst or parotid mandibular bone defect. The patient was then referred for magnetic resonance imaging, which demonstrated a hyperintense area eroding the mandibular ramus, which corresponded to glandular tissue. Although the defect was a benign lesion, radiolucencies in the mandibular ramus lead to concerns among professionals, because their radiographic features can resemble various intrabony neoplastic lesions, such as giant cell tumors or benign tumors of the parotid gland.
Bone Cysts
;
Cytochrome P-450 CYP1A1
;
Depression
;
Diagnosis
;
Giant Cell Tumors
;
Humans
;
Magnetic Resonance Imaging*
;
Male
;
Middle Aged
;
Parotid Gland
;
Radiography, Panoramic
;
Salivary Glands
;
Temporomandibular Joint
7.The Cutting-edge Rehabilitation Treatment for Patients with Spinal Cord Injury:Functional Electrical Stimulation(FES)
Toshiki MATSUNAGA ; Naohisa MIYAKOSHI ; Daisuke KUDO ; Kimio SAITO ; Ryota KIMURA ; Junichi INOUE ; Satoaki CHIDA ; Kazutoshi HATAKEYAMA ; Yoichi SHIMADA
The Japanese Journal of Rehabilitation Medicine 2019;56(7):555-559
8.Usefulness of the S-O clip for duodenal endoscopic submucosal dissection: a propensity score-matched study
Ippei TANAKA ; Dai HIRASAWA ; Hiroaki SAITO ; Junichi AKAHIRA ; Tomoki MATSUDA
Clinical Endoscopy 2023;56(6):769-777
Background/Aims:
Endoscopic submucosal dissection (ESD) for superficial non-ampullary duodenal tumors (SNADETs) is associated with a high rate of en bloc resection. However, the technique for ESD remains challenging. Recent studies have demonstrated the effectiveness of S-O clips in colonic and gastric ESD. We evaluated the efficacy and safety of duodenal ESD using an S-O clip for SNADETs.
Methods:
Consecutive patients who underwent ESD for SNADETs between January 2011 and December 2021 were retrospectively enrolled. Propensity score matching analysis was used to compare patients who underwent duodenal ESD with the S-O clip (S-O group) and those who underwent conventional ESD (control group). Intraoperative perforation rate was the primary outcome, while procedure time and R0 resection rate were the secondary outcomes.
Results:
After propensity score matching, 16 pairs were created: 43 and 17 in the S-O and control groups, respectively. The intraoperative perforation rate in the S-O group was significantly lower than that in the control group (p=0.033). A significant difference was observed in the procedure time between the S-O and control groups (39±9 vs. 82±30 minutes, respectively; p=0.003).
Conclusions
The S-O clip reduced the intraoperative perforation rate and procedure time, which may be useful and effective in duodenal ESD.
9.An ex post facto evaluation of the 82nd and 83rd national examination for Physicians' license.
Masahiko HATAO ; Motokazu HORI ; Saichi HOSODA ; Atsuaki GUNJI ; Hiroshi HAMADA ; Nobuya HASHIMOTO ; Yasuo IDEZUKI ; Kiyoshi ISHIDA ; Hiraki MATSUEDA ; Taiichi SAITO ; Junichi SUZUKI ; Fumimaro TAKAKU ; Fumio YAMASHITA
Medical Education 1990;21(4):269-274
The 82 nd and 83 rd National Examination for Physicians' License, which were held in 1988 and 1989 respectively, were evaluated from question to question as well as in all the questions as a whole to set minimum pass scores and analysis “relevance” and “difficulty” in a matrix utilizing a modified Ebel's method.
The evaluators were teachers in different disciplines in nationwide medical schools and teaching hospitals and clinical trainees who had taken and passed the immediate past examinations.
Following data processing, the questionable and difficult questions were on the decrease compared with the preceding year, and it was tentatively concluded that the National Examinations have gradually improved year by year.
10.Further Improvement in the National Examination for Physicians' License in 1993. An Ex post facto Evaluation of the Recent National Examination for Physicians' License.
Masahiko HATAO ; Motokazu HORI ; Saichi HOSODA ; Tokuteru GUNJI ; Hiroshi HAMADA ; Nobuya HASHIMOTO ; Yasuo IDEZUKI ; Kiyoshi ISHIDA ; Kei MATSUEDA ; Taiichi SAITO ; Junichi SUZUKI ; Fumimaro TAKAKU ; Fumio YAMASHITA
Medical Education 1993;24(1):37-43