1.Endovascular Treatment of Idiopathic Intracranial Hypertension with Stenting of the Transverse Sinus Stenosis.
Shigeru MIYACHI ; Ryo HIRAMATSU ; Hiroyuki OHNISHI ; Kenkichi TAKAHASHI ; Toshihiko KUROIWA
Neurointervention 2018;13(2):138-143
For many years, the pathophysiology of idiopathic intracranial hypertension (IIH) was interpreted as “secondary intracranial hypertension,” and IIH was considered to be caused by brain edema due to obstructive sleep apnea. Another theory proposed cerebrospinal fluid (CSF) absorption impairment due to excessive medication with vitamin A derivatives. Other reports pointed out the importance of obesity, which may cause an impairment of intracranial venous drainage due to elevated right atrial pressure. Patients with medically refractory IIH have traditionally undergone a CSF diversion. Venous outlet impairment on IIH has recently been reported as a causative or contributory cause, and thus focused venoplasty of the stenotic sinus with a stent has emerged as a new treatment strategy. We report the cases of two patients who presented with headache and papilledema with IIH. They successfully underwent stent placement at the stenosis of the transverse sinus and experienced complete resolution of symptoms.
Absorption
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Atrial Pressure
;
Brain Edema
;
Cerebrospinal Fluid
;
Constriction, Pathologic*
;
Drainage
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Headache
;
Humans
;
Obesity
;
Papilledema
;
Pseudotumor Cerebri*
;
Sleep Apnea, Obstructive
;
Stents*
;
Vitamin A
2.Two Cases of Autoimmune Pancreatitis-Induced Obstructive Jaundice Treated with Inchinkoto
Hideyuki KITAHARA ; Tatsuya NOGAMI ; Hiroki MISAWA ; Sayuri ARAI ; Shigeru EBISAWA ; Hidetoshi WATARI ; Makoto FUJIMOTO ; Hiroshi FUJINAGA ; Hiroaki HIKIAMI ; Kozo TAKAHASHI ; Naotoshi SHIBAHARA ; Yutaka SHIMADA
Kampo Medicine 2014;65(3):202-209
We report two cases of inchinkoto treatment for obstructive jaundice via autoimmune pancreatitis (AIP). Case 1 : A 38-year-old male. After completion of treatment for Mikulicz disease, obstructive jaundice developed. A diagnosis of AIP was based on a high IgG 4 blood level and image views. T-Bil stayed above 20 mg/dl and there was no improvement by oral administration of prednisolone (PSL), ursodeoxycholic acid, or bilirubin adsorption therapy. Upon inchinkoto administration, T-Bil promptly fell to 3 mg/dL. Case 2 : A 77-year-old male. He suffered from itching and constipation, and blood data showed a pattern of obstructive jaundice. Image views suggested AIP, but a duodenal papillary biopsy could not provide a definitive diagnosis. Inchinkoto was administered, and the itching and constipation had mostly disappeared within 1 week. However, these symptoms recurred after one month. A definitive diagnosis of AIP was then reached based on a pancreas biopsy, and a PSL regimen was initiated. From these two cases, we consider that inchinkoto is useful for improving the symptoms of obstructive jaundice induced by AIP.
3.Cooperation Between Hospital Pharmacy Department and Insurance Pharmacy in Outpatient Chemotherapy
Maki ITOH ; Kaori MIYATA ; Hirohide TAKAYA ; Atsushi SAITOH ; Shigeru TAKAHASHI
Journal of the Japanese Association of Rural Medicine 2013;61(5):703-709
Recently, the diversification of chemotherapy has brought about an increase in the number of outpatients who receive prescription drugs at insurance pharmacies after the intravenous infusion of anticancer agents at hospitals. The problem is that insurance pharmacies do not have ample knowledge of treatment plans and disease stages, and the presence or absence of cancer notification. Moreover, medication regimens, including washout, periods, have become so complicated that patient compliance rates have shown a tendency to decline gradually.
Such being the circumstances, we have come to think that it would be better to enter into partnership with the dispensary of Senboku Kumiai General Hospital for sharing information in order to give the patients more beneficial medication instructions.
For a start, we met with the hospital pharmacists, exchanged necessary information and ideas, got acquainted with chemotherapy regimens, and shared the tools of medication teaching. Through the participation in the guidance given by hospital pharmacists to outpatients who began to receive chemotherapy, and lectures on chemotherapy and medication by physicians and hospital pharmacists of the general hospital, we have become able to offer more appropriate counsel to the outpatients. Furthermore, we created a channel between the dispensary and Senboku Chozai Pharmacy for feedback and for asking questions about not only the conditions of the patients but also the presence or absence of cancer notification.
We believe that our efforts have contributed toward increasing the safety and efficacy of chemotherapy.
4.Regional Difference in Colonic Motility Response to Electrical Field Stimulation in Guinea Pig.
Jung Myun KWAK ; Reji BABYGIRIJA ; Irena GRIBOVSKAJA-RUPP ; Toku TAKAHASHI ; Shigeru YAMATO ; Kirk LUDWIG
Journal of Neurogastroenterology and Motility 2013;19(2):192-203
BACKGROUND/AIMS: In isolated guinea-pig colon, we investigated regional differences in peristalsis evoked by intrinsic electrical nerve stimulation. METHODS: Four colonic segments from mid and distal colon of Hartley guinea pigs, were mounted horizontally in an organ bath. Measurement of pellet propulsion time, intraluminal pressure, electrical field stimulation (EFS; 0.5 ms, 60 V, 10 Hz), and response of pharmacological antagonists, were performed to isolated segments of colon to determine the mechanisms underlying peristaltic reflexes evoked by focal electrical nerve stimuli. RESULTS: In fecal pellet propulsion study, the velocity of pellet propulsion was significantly faster in the distal colon and decreased gradually to the proximal part of the mid colon. Intraluminal pressure recording studies showed that luminal infusion initiated normal peristaltic contractions (PCs) in 82% trials of the distal colon, compared to that of mid colon. In response to EFS, the incidence of PCs was significantly increased in the distal colon in contrast, the incidence of non-peristaltic contractions (NPCs) was significantly higher in the middle-mid colon, distal-mid colon and distal colon, compared to that of proximal-mid colon. Addition of L-NAME into the bath increased the frequency of NPCs. EFS failed to cause any PCs or NPCs contractions in the presence of hexamethonium, atropine or tetrodotoxin. CONCLUSIONS: This study has revealed that electrical nerve stimulation of distal colon is the most likely region to elicit a peristaltic wave, compared with the mid or proximal colon. Our findings suggest that EFS-evoked PCs can be modulated by endogenous nitric oxide.
Animals
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Atropine
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Baths
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Colon
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Contracts
;
Guinea
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Guinea Pigs
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Hexamethonium
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Incidence
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NG-Nitroarginine Methyl Ester
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Nitric Oxide
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Peristalsis
;
Phenobarbital
;
Reflex
5.Effects of Moderate-Intensity Endurance Exercise on Reactive Oxygen Species Production and Leukocyte Activation Markers
Masaki TAKAHASHI ; Katsuhiko SUZUKI ; Hideki MATOBA ; Masayuki SATAKE ; Shizuo SAKAMOTO ; Shigeru OBARA
Japanese Journal of Complementary and Alternative Medicine 2011;8(1):25-28
The purpose of this study was to examine effects of moderate-intensity endurance exercise on reactive oxygen species production and leukocyte activation markers in young and middle-aged persons. Blood samples were collected before and after the jogging of 10 km. Although cytokines recruiting and priming neutrophils and monocytes were released into the circulation and functional after the jogging of 10 km, reactive oxygen metabolites-derived compounds (d-ROMs) were not significantly increased. It was indicated that chemokines and leukocyte activation markers at rest were increased with aging, and that might be accompanied by the higher level of d-ROMs in the elderly.
6.Successful Treatment of Necrotizing Fasciitis and Toxic Shock Syndrome by Hip Amputation and Endotoxin Hemoadsorption
Hiroshi Kamada ; Shigeru Hioki ; Takashi Sato ; Ken Shimizu ; Kuniaki Amano ; Masahiko Takahashi
Journal of Rural Medicine 2008;4(2):91-94
Background: Necrotizing fasciitis is a rare but severe condition associated with high mortality. We encountered a patient with severe and rapidly progressing necrotizing fasciitis. Patient: A 40-year-old male was hit by a tractor and received a wide laceration wound spanning the length of his posterior thigh. Soon after the accident, the wound was washed and debridement was performed. Two days postoperatively, we observed septic changes in the wound and diagnosed this condition as necrotizing fasciitis. Consequently, the patient's leg was amputated at the thigh. The patient, however, developed toxic shock syndrome after the amputation. Endotoxin adsorption using a polymyxin B-immobilized fiber column was performed for 2 days. Finally, a hip joint amputation was performed after 11 days, following which the patient's general condition gradually improved. Discussion: Treatment for necrotizing fasciitis should be initiated promptly. Early debridement is associated with a significant decrease in mortality. In severe conditions, endotoxin and cytokine removal by blood purification is one of the most effective treatments. Although group A streptococci are widely known as "flesh-eating bacteria," we should also consider a wide variety of pathogenic organisms to be the probable cause of severe necrotizing fasciitis. Conclusion: Management of necrotizing fasciitis requires careful investigation as well as an aggressive therapeutic approach, which may include urgent surgical intervention. In addition to surgery, endotoxin adsorption therapy should be considered.
Patients
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Fasciitis
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Endotoxins
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Therapeutic procedure
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Amputation
7.Qualitative and quantitative evaluation of coronary plaques with 64-slice computed tomography in comparison with intravascular ultrasound.
Hong-hua YE ; Hideaki KANEDA ; Shigeru SAITO ; Takaaki SHIONO ; Shinji TANAKA ; Yusuke MIYASHITA ; Saeko TAKAHASHI ; Yoshio TAKETANI ; Hiroshi DOMAE
Chinese Journal of Cardiology 2007;35(7):648-651
OBJECTIVETo explore the diagnostic feasibility of noninvasive assessment of coronary atherosclerotic plaques with MSCT in comparison with IVUS.
METHODSContrast-enhanced MSCT angiography (Sensation 64, Siemens Medical Solutions) was performed before percutaneous coronary intervention (PCI), and three-vessel IVUS (Boston Scientific, Natick, MA) was performed during procedure in 12 patients with stable angina pectoris. Complete investigation was digitally stored, and assessed offline with EchoPlaque (Indec Systems, Mountain View, CA). The comparison of MSCT with IVUS was performed based on segment at plaque site (American Heart Association 15-segment model).
RESULTSA total of 88 segments in 31 vessels (left anterior descending: 12, left circumflex: 10, and right coronary artery: 9) were investigated by both IVUS and MSCT. Among 68 assessable segments (54 proximal-middle segments and 14 distal segments) by MSCT (20 segments were excluded for poor image quality: 16 for severe calcification, 2 for motion artifact, 2 for poor opacification), MSCT correctly detected 47 of the 51 segments with plaques (sensitivity: 92%), and correctly evaluated 16 of 17 segments without plaques (specificity: 94%). Concerning plaque quantification, MSCT correlated well with IVUS in grading whether the vessel obstruction was less or more than 50% (simple kappa: 0.63, 95% CI: from 0.47 to 0.78). Plaque area by MSCT also correlated with that by IVUS (r = 0.53, P < 0.01), but overestimated plaque area [(9.09 +/- 3.89) mm(2) vs. (6.80 +/- 2.81) mm(2), P < 0.01]. In addition, 30 of 43 hypoechoic compositions were detected as low-density compositions by MSCT with average CT number as 67.39 HU.
CONCLUSIONSIn segments without severe calcification, contrast-enhanced 64-slice CT angiography could detect plaques in coronary artery with high accuracy. Plaque area quantification by MSCT correlated with that of IVUS though with limited accuracy.
Coronary Angiography ; Coronary Artery Disease ; diagnostic imaging ; Humans ; Tomography, X-Ray Computed ; methods ; Ultrasonography, Interventional
8.Changes in Heart Rate Recovery (T30) on Cardiac Rehabilitation in Patients after Coronary Artery Bypass Surgery.
SHINJI SATO ; MAYUMI TAKAHASHI ; SHIGERU MAKITA
Japanese Journal of Physical Fitness and Sports Medicine 2002;51(3):275-281
The time constants of beat-by-beat heart rate decay for the first 30 seconds (T30) after exercise is a specific index for the vagally mediated component of heart rate recovery. The aim of our study was to determine whether cardiac rehabilitation (CR) can accelerate T30 in patients after coronary artery bypass grafting (CABG) . Thirteen male patients who underwent CABG (aged 60.5±7.7years) were assigned to 7-21 day Phase I CR. Exercise training consisted of 30 minutes of aerobic exercise (bicycle ergometer) at the anaerobic threshold 2 times per day. T30 was measured as the heart rate decay regulated in patients who rested immediately after 5 minutes of pedaling exercise. After CR, T30 significantly improved from 413.3±129.7 to 300.1±124.5 sec (p<0.01) . Peak oxygen uptake (peak V02: 14.0±4.0 16.7±3.2mlin/kg: p<0.01) and heart rate at anaerobic threshold (HR @ AT: 111.9±13.4 103.6±11.7 beatsin: p<0.01) also improved significantly. There was no correlation between ΔT30 (Δ: difference before and after CR) and Δpeak VO2or ΔHR @ AT. These results suggest that CR for patients following CABG accelerates vagally mediated heart rate recovery after dynamic exercise.
9.The effect of strength training in muscle and nerve is memorized and reinforced by retraining.
HAJIME OHMORI ; AKIHITO WATANABE ; KEIGO OHYAMA BYUN ; FUMIKO TSUKUDA ; HIDEYUKI TAKAHASHI ; TOSHIROU KUME ; HITOSHI SHIRAKI ; MORIHIKO OKADA ; YUJI ITAI ; SHIGERU KATSUTA
Japanese Journal of Physical Fitness and Sports Medicine 2000;49(3):385-392
The purpose of this study was to prove the hypothesis that the effect of strength training is memorized and reinforced by retraining. Untrained university-age men participated in this training program. The retraining leg was subjected to 5 weeks of isometric training, 17 weeks of detraining and 5 weeks of retraining in knee extension. The contralateral training leg was subjected to 5 weeks of isometric training during the same period as the retraining phase of the retraining leg. Maximal isometric torque of knee extension increased after the 5-week training and remained at the trained level during the 17week detraining period. Torque gain by retraining of the retraining leg was 2.6 times greater than that of the contralateral training leg. These changes in isometric torque corres-ponded with changes in iEMG of the vastus lateralis. The cross-sectional area of the quadriceps femoris muscle did not change with training. Results support the hypothesis that the effect of strength training is memorized and reinforced by retraining. In addition, results show that these adaptations would be explained by recruitment and rate coding of motor units.
10.A Case of Aortic Stenosis Secondary to Bicuspid Aortic Valve Associated with Klippel-Feil Syndrome Treated by Aortic Valve Replacement.
Shigeru Ohki ; Susumu Ishikawa ; Akio Ohtaki ; Toru Takahashi ; Yasushi Satoh ; Tetsuya Koyano ; Toshiharu Yamagishi ; Takashi Ogino ; Satoshi Ohki ; Yasuo Morishita
Japanese Journal of Cardiovascular Surgery 1997;26(3):200-203
A 52-year-old male was diagnosed as having aortic stenosis secondary to a bicuspid aortic valve associated with Klippel-Feil syndrome. Aortic valve replacement was successfully performed without any problems in the surgical or anesthesiological management. Only five such cases including ours, who underwent cardiac surgery have been reported. It is possible to perform cardiac surgery for patients with Klippel-Feil syndrome of their cardiac function can be well preserved.


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