2.Treatment for Lateral Flexion Fracture Dislocation of the Cervical Spine: Report of Two Cases
Itsuo Shiina ; Shigeru Hioki ; Hiroshi Kamada ; Kuniaki Amano ; Hiroshi Noguchi
Journal of Rural Medicine 2010;5(2):194-197
The injury mechanism of traumatic cervical spine injury varies, and Allen et al. divide cervical spine injuries into 6 types based on the direction of external force at the time of injury. In this report, we present 2 cases as Lateral Flexion Stage 2. A 51-year-old male (Case 1) was injured in a traffic accident. His conscious level was JCS III-200, and he was found to have a Frankel Grade of B. X-ray revealed a C5/6 fracture dislocation injury of Lateral Flexion Stage 2. We were unable to obtain good reduction. We planned to perform posterior fusion using a cervical spine pedicle screw but could not perform the procedure due to the patient’s poor general condition. A 32-year-old male (Case 2) was injured as a result of being hit by a steel sheet. He had Frankel Grade D paralysis. X-ray revealed a C5/6 fracture dislocation injury of Lateral Flexion Stage 2. We did not perform manual reduction. We performed posterior fixation, anterior decompression and anterior fixation. Bone union was confirmed, and the patient was able to return to work. In cases of this type of fracture dislocation of the cervical spine, the supporting structures of the spinal column circumferentially rupture and induce high instability. Since closed reduction is sometimes difficult and involves risk, strong internal fixation might be recommended.
3.CHANGES IN BONE METABOLISM MARKERS ASSOCIATED WITH LONG-DISTANCE RUNNING
NAOKI MUKAI ; TOMOO ISHII ; HIROSHI KAMADA ; YUTAKA MIYANAGA ; KOICHIRO HAYASHI
Japanese Journal of Physical Fitness and Sports Medicine 1999;48(1):179-185
To investigate the influence of long-distance running on bone metabolism, we measured bone metabolism markers in eight healthy young men before and 4 months after the start of training program of 10 km running. Measurements were then taken the day before a marathon race, immediately after, and 1 day, 2 days and 5 days after.
As a result of exercise, the levels of serum osteocalcin (OC), a bone formation marker, and urinary deoxypyridinolin (D-Pyr), a bone resorption marker, decreased significantly. After the marathon race, the OC level decreased further corresponding to an increase of hydrocortisone right after the race. However, from the day following the race, the OC level showed a slight increase. D-Pyr showed an increasing tendency immediately after the race, and the levels of OC and D-Pyr increased significantly 5 days after the race.
Bone formation and resorption decreased as a result of light, low-frequency endurance exercise. However, both of them increased after intense physical stress. From this result, it is suggested that the intensity and frequency of exercise affect bone metabolism differently, even though the type of exercise load is similar.
4.Soft-tissue release for hip subluxation and dislocation in cerebral palsy
Ryoko Takeuchi ; Hirotaka Mutsuzaki ; Yukiyo Shimizu ; Yuki Mataki ; Hiroshi Kamada
Journal of Rural Medicine 2017;12(2):120-125
Objective: This study aimed to evaluate the effectiveness of soft-tissue release on hip subluxation and dislocation in cerebral palsy as well as activities of daily living after surgery.
Patients and Methods: Soft-tissue release was performed in 13 patients (19 hips) with cerebral palsy. Of them, 10 had spastic quadriplegia and three had spastic diplegia. Mean ages were 8.6 years at surgery and 13.8 years at the last investigation. The mean follow-up period was 5.2 years. Hip subluxation and dislocation severities were analyzed before and after surgery and at the final investigation as migration percentage on radiographs. Postoperative activities of daily living were also evaluated in 12 patients.
Results: Seven hips classified as mild and moderate preoperatively were classified as good, mild, and moderate at the last investigation. Nine of 12 hips classified as severe preoperatively continued to be severe at the last investigation. However, three of 12 hips classified as severe preoperatively improved at the last investigation. There was a positive correlation between preoperative migration percentage and that at the last investigation. Daily activities improved postoperatively in 12 patients.
Conclusions: Early treatment is necessary to prevent hip dislocation and improve hip subluxation. However, several patients with severe subluxation might experience improvement with soft-tissue release alone. Soft-tissue release is effective for treating hip dislocation and subluxation in cerebral palsy and improving daily activities.
5.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
6.The use of a novel in-bed active Leg Exercise Apparatus (LEX) for increasing venous blood flow
Kenta Tanaka ; Hiroshi Kamada ; Yukiyo Shimizu ; Shizu Aikawa ; Tomofumi Nishino ; Naoyuki Ochiai ; Masataka Sakane ; Masashi Yamazaki
Journal of Rural Medicine 2016;11(1):11-16
Objective: The incidence of pulmonary embolism (PE) and leg deep vein thrombosis (DVT) has increased in recent years in association with aging and an increase in the number of bedridden individuals. We developed an active in-bed leg exercise apparatus labeled the Leg Exercise Apparatus (LEX) for DVT prevention. We compared the effect of leg exercises performed using the LEX to conventional active ankle exercises on increased blood flow.
Materials & Methods: The subjects were eight healthy adult volunteers [five men and three women, aged 20–34 (mean 27.0) years]. Subjects performed two types of exercise; exercise 1 consisted of leg exercises using the LEX, while exercise 2 consisted of in-bed active plantar flexion/dorsiflexion exercises without the device. Measurements were taken 1, 5, 10, 20, and 30 minutes after exercise including common femoral vein blood flow, mean blood flow velocity, maximum blood flow velocity, and vessel diameter using Doppler ultrasound. Statistical procedures included timed measurement data analysis using a linear mixed model. A Bonferroni correction was used for multiple comparisons.
Results: Compared to resting levels, blood flow reached a maximum value 1 minute after exercise for both exercise types, with a significantly greater increase after exercise 1 (1.76-fold increase) compared to exercise 2 (1.44-fold increase) (p = 0.005). There was a significant difference (p = 0.03) between the two exercises for all values from 1 minute to 30 minutes following exercise. There was no significant difference between exercises for peak or mean blood flow velocity. Compared to resting levels, blood vessel diameter reached a maximum value of 1.47-fold greater at 5 minutes post-exercise for exercise 1 and a maximum value of 1.21-fold greater at 1 minute post-exercise for exercise 2.
Conclusions: Exercise using the LEX increased lower leg venous blood flow and vessel diameter. We propose that the LEX may serve as a new DVT prevention tool.
7.A Case of Ruptured Coronary Arteriovenous Fistula with Cardiac Tamponade.
Kazufumi Miyagi ; Kageharu Koja ; Yukio Kuniyoshi ; Kiyoshi Iha ; Mitsuru Akasaki ; Mitsuyoshi Shimoji ; Tadao Kugai ; Yoshihiko Kamada ; Hiroshi Shiroma ; Akira Kusaba
Japanese Journal of Cardiovascular Surgery 1995;24(1):64-67
A 59-year-old female case with cardiac tamponade due to rupture of the coronary arteriovenous fistula is described. Preoperative coronary arteriography showed bilateral coronary-pulmonary fistulae not associated with significant atherosclerotic stenosis. On opening the pericardium after establishing F-F bypass, the pericardial sac contained 300 grams of partially clotted blood. There was subepicardial hematoma along the area of the left anterior descending artery and the left circumflex artery without any other abnormal findings of the heart. The operation consisted of hemostasis with several mattress sutures along the left anterior descending artery and the left circumflex artery, closure of multiple fistulous openings from within the pulmonary artery, and ligation of abnormal dilated vessels originating from bilateral coronary arteries. The coronary arterio-venous fistula with aneurysmal dilatation should be operated on aggressively, whether symptomatic or asymptomatic, to prevent the rupture of fistulae.
8.Peri-orbital electrodes as a supplemental recording for detection of ictal discharges in medial temporal lobe epilepsy
Hiroshi Shigeto ; Ayumi Sakata ; Takato Morioka ; Kei-ichiro Takase ; Ko-ichi Hagiwara ; Takashi Kamada ; Yuji Kanamori ; Kimiaki Hashiguchi ; Shozo Tobimatsu ; Natsumi Yamashita ; Jun-ichi Kira
Neurology Asia 2011;16(4):303-307
Objective: The feasibility of peri-orbital electrodes, which are not invasive and do not induce pain, as a
supplemental electrode for detection of ictal discharges in medial temporal lobe epilepsy (MTLE) was
examined. Methods: Patients with MTLE, who underwent video-EEG monitoring with simultaneous
peri-orbital and sphenoidal electrodes and obtained good outcome following standard anterior temporal
lobectomy, were subjects in this study. Initial ictal discharge amplitudes were compared between
sphenoidal (Sp1/ 2), standard anterior temporal in 10-20 system (F7/ 8), peri-orbital (superior orbital
lateral: SOL, inferior orbital medial: IOM), frontopolar (Fp1/ 2), frontal (F3/4) and ear (A1/ 2) electrodes.
Results: A total of 34 consecutive seizures from 20 patients were analyzed, with a maximum amplitude
observed at Sp1/2 (57.57±5.59), followed by F7/8 (54.89±5.59), SOL (50.97±5.59), IOM (46.95±5.59),
A1/2 (45.07±5.69), Fp1/2 (44.78±5.62), and F3/4 (37.75±5.66) (mean±standard error, μV). There was
no statistical difference between Sp1/2, F7/8, SOL, and IOM values. When the sphenoidal electrode
was omitted, 13 seizures (13/34, 38.2%) resulted in the highest amplitude at peri-orbital electrodes
and 10 seizures (10/ 34, 29.4%) at F7/8.
Conclusions: Peri-orbital electrodes could detect ictal discharges in MTLE as well as sphenoidal and
standard anterior temporal electrodes in 10-20 system and are useful for supplemental recording for
detecting ictal epileptiform discharges in MTLE.
9.A Study on the Efficacy of Proton Pump Inhibitors in Helicobacter pylori-Negative Primary Care Patients with Dyspepsia in Japan.
Tomoari KAMADA ; Yoshinori FUJIMURA ; Kensuke GOTOH ; Hiroshi IMAMURA ; Noriaki MANABE ; Hiroaki KUSUNOKI ; Kazuhiko INOUE ; Akiko SHIOTANI ; Jiro HATA ; Ken HARUMA
Gut and Liver 2013;7(1):16-22
BACKGROUND/AIMS: There have been few studies on the efficacy of proton pump inhibitors and the doses required to treat dyspeptic symptoms observed in clinical practice. The aim of this study was to compare the efficacy of different doses of omeprazole and different administration methods in Helicobacter pylori-negative, dyspeptic patients. METHODS: Patients with chronic upper abdominal symptoms within the previous 3 months were randomly divided into three groups: a daily, omeprazole 20 mg treatment group (OPZ20, n=61); a daily, omeprazole 10 mg treatment group (OPZ10, n=72); and an on-demand omeprazole 20 mg treatment group (on-demand, n=62). After 4 weeks of administration of the drug, symptom improvement rates were evaluated based on the Overall Global Severity score. RESULTS: The rates of symptom improvement after 4 weeks of treatment were 65.6% (40/61) in the OPZ20 group, 47.2% (34/72) in the OPZ10 group, and 50.0% (31/62) in the on-demand group. The OPZ20 group exhibited a significantly higher improvement rate (p=0.034) than the OPZ10 group. The OPZ20 group had significant improvements in regurgitation, postprandial fullness, vomiting, and bloating compared with the OPZ10 group. CONCLUSIONS: Daily treatment with 20 mg of omeprazole was efficient in treating upper abdominal symptoms. Trial registration: ClinicalTrials.gov, number UMIN000002621.
Dyspepsia
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Helicobacter
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Humans
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Japan
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Omeprazole
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Primary Health Care
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Proton Pump Inhibitors
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Proton Pumps
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Protons
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Vomiting
10.Comparison of treatment planning by carbon ion radiotherapy and by intensity-modulated radiotherapy for prostatic adenocarcinoma.
Wei-hu WANG ; Hiroshi TSUJI ; Hitoshi ISHIKAWA ; Hirohiko TSUJII ; Tadashi KAMADA ; Junetsu MIZOE ; Ye-xiong LI
Chinese Journal of Oncology 2006;28(11):836-839
OBJECTIVETo evaluate the potential benefit of carbon ion radiotherapy (C-ion RT) through comparison with photon intensity-modulated radiotherapy (IMRT) in dose distribution for prostatic adenocarcinoma.
METHODSIn randomly selected 5 patients, treatment planning of C-ion RT (4 coplanar beams) and IMRT (7 coplanar fields) were worked out by computer working station. In order to make a meaningful comparison, it was defined that the 95% isodose surface had to cover 100% of the PTV in each plan; all dose was given as normalized dose with the definition of the minimum dose of the PTV being equal to 95% of prescribed dose. Dose-volume histograms (DVHs) of the tumor and organ-at-risks (OARs) were calculated. Volume irradiated more than or equal to some specified doses, conformity index ( CI) , and inhomogeneity coefficient (IC) of each treatment plan was compared, respectively.
RESULTSWith C-ion RT, the mean irradiated volumes (in %) of the rectum were significantly smaller than that with IMRT except for 95% dose level, and C-ion RT could provide complete protection to the posterior rectal wall. In addition, C-ion RT could also remarkably reduce the dose to the bladder, femoral heads and non-target normal tissues at each dose level. Dose conformation and homogeneity in the target volume of C-ion RT were better than that in IMRT (mean CI50%, 3.36 vs. 5.04, mean CI95%, 1.20 vs. 1.46, mean IC, 0.03 vs. 0.12).
CONCLUSIONCompared with IMRT, C-ion RT can obtain better dose distribution, and may reduce tumor recurrence and radiation-induced complications in prostatic adenocarcinoma.
Adenocarcinoma ; pathology ; radiotherapy ; Aged ; Carbon Radioisotopes ; therapeutic use ; Femur Head ; radiation effects ; Humans ; Male ; Prostatic Neoplasms ; pathology ; radiotherapy ; Radiotherapy Dosage ; Radiotherapy, Intensity-Modulated ; methods ; Rectum ; radiation effects ; Urinary Bladder ; radiation effects