1.Three Cases of Ascending Aorta-Abdominal Aorta Bypass for Atypical Coarctation with Takayasu's Aortitis
Eiichiro Inagaki ; Sohei Hamanaka ; Hitoshi Minami ; Atsushi Tabuchi ; Yasuhiro Yunoki ; Hiroshi Kubo ; Yuji Kanaoka ; Mitsuaki Matsumoto ; Hisao Masaki ; Kazuo Tanemoto
Japanese Journal of Cardiovascular Surgery 2009;38(4):239-243
We report 3 cases of ascending aorta-abdominal aorta bypass for atypical coarctation with Takayasu's aortitis. We performed an extra-anatomical bypass from the ascending aorta to the terminal abdominal aorta. The graft was arranged to pass through the diaphragm from the pericardium, behind the left lobe of the liver and the stomach, to the front side of the pancreas to the terminal abdominal aorta. Although the graft was exposed in the abdominal cavity in part behind the stomach, it was completely covered with the great omentum thus avoiding direct contact between the graft the abdominal organs. Decrease in the pressure gradient between the ascending aorta and the abdominal aorta was achieved using a large prosthetic graft 14-16 mm in diameter. There are several advantages with this technique. (1) Positional change during surgery can be avoided. (2) Anastomosis can be performed in non-diseased vessels. (3) This bypass graft can be branched off to visceral arteries if necessary. Reduction of the after load on the left ventricle and long-term graft patency by using a large diameter prosthetic graft were anticipated. The postoperative courses of all cases were satisfactory. Case 1 died of another disease 11 years and 11 months postoperatively, but the graft to was still patent.
2.Modified Open-Door Laminoplasty Using a Ceramic Spacer and Suture Fixation for Cervical Myelopathy.
Tomoyuki OZAWA ; Tomoaki TOYONE ; Ryutaro SHIBOI ; Kunimasa INADA ; Yasuhiro OIKAWA ; Kazuhisa TAKAHASHI ; Seiji OHTORI ; Gen INOUE ; Masayuki MIYAGI ; Tetsuhiro ISHIKAWA ; Toshiyuki SHIRAHATA ; Yoshifumi KUDO ; Katsunori INAGAKI
Yonsei Medical Journal 2015;56(6):1651-1655
PURPOSE: To introduce a new simple technique using suture anchors and ceramic spacers to stabilize the elevated laminae in open-door cervical laminoplasty. Although ceramic spacers were placed in the opened laminae and fixed with nylon threads in this series, it was occasionally difficult to fix the nylon threads to the lateral mass. MATERIALS AND METHODS: Study 1: A preliminary study was conducted using a suture anchor system. Sixteen consecutive patients who underwent surgery for cervical myelopathy were prospectively examined. Study 2: The second study was performed prospectively to evaluate the feasibility of this new technique based on the result of the preliminary study. Clinical outcomes were examined in 45 consecutive patients [cervical spondylotic myelopathy (CSM)] and 43 consecutive patients (OPLL). The Japanese Orthopedic Association scoring system (JOA score), axial neck pain, and radiological findings were analyzed. RESULTS: 1) In one case, re-operation was necessary due to dislodgement of the ceramic spacer following rupture of the thread. 2) In all patients, postoperative CT scans showed that the anchors were securely inserted into the bone. In the CSM group, the average JOA score improved from 9.5 points preoperatively to 13.3 at follow-up (recovery 51%). In the OPLL group, the average JOA score improved from 10.1 (5-14) points preoperatively to 14.4 (11-16) at follow-up (recovery 62%). There were no serious complications. CONCLUSION: The use of the suture anchor system made it unnecessary to create a hole in the lateral mass and enabled reliable and faster fixation of the HA spacers in open-door laminoplasty.
Adult
;
Aged
;
*Ceramics
;
Cervical Vertebrae/radiography
;
Feasibility Studies
;
Female
;
Follow-Up Studies
;
Humans
;
Laminoplasty/*methods
;
Male
;
Middle Aged
;
Postoperative Period
;
Prospective Studies
;
Spinal Cord Diseases/*surgery
;
Suture Anchors
;
*Sutures
;
Tomography, X-Ray Computed
;
Treatment Outcome
3.Phosphorus Adsorption Effect and the Influence on Iron-Related Benefit of Sucroferric Oxyhydroxide in Dialysis
Fumitaka OHASHI ; Soshu TANAKA ; Yuta OCHI ; Takuya MARUYAMA ; Haruka GOTO ; Noriko KAYA ; Hirokazu TABATA ; Yasuhiro INAGAKI ; Ryuji KOTERA ; Akio SHIBANAMI
Journal of the Japanese Association of Rural Medicine 2019;68(2):148-154
In hemodialysis, an adsorbent is used to remove phosphorus from the blood.Because phosphorus adsorbents contain iron, they may cause iron excess, and appropriate management is thus required.In recent years, the use of sucroferric oxyhydroxide (SO), which has become available, is said to be associated with lower iron absorption and is less likely to cause iron excess, as compared with conventional ferric citrate hydrate (FCH). However, in clinical trials of SO conducted in Japan, serum ferritin (Ft) and transferrin saturation (TSAT) tended to increase, and this may cause iron excess similar to FCH. Therefore, we report here on the phosphorus adsorption effect and the influence on iron-related benefit of SO.Among 12 patients, iron-related abnormalities were observed in 3 patients and adverse events such as diarrhea and nausea were observed in 7 patients.In 8 patients who continued taking SO for up to 24 weeks, serum phosphorus (P) decreased, Ft and TSAT increased, Hb, Fe, Ca did not change significantly, and the dose of erythropoiesis-stimulating agents (ESA) decreased. The rate of change of Ft was greater in 5 patients with iron deficiency than in 3 patients with non-ferrous deficiency. SO administration tended to decrease P and improve iron deficiency.In addition, there was a decrease in the dose of ESA, suggesting the possibility of contributing to pharmaceutical cost reduction.Conversely, in patients with iron deficiency, iron-related abnormalities were observed in 3 patients, and about half had adverse events with subjective symptoms 4 weeks after the start of treatment with SO.Therefore, the administration of SO takes into account the effects on iron-related values as well as FCH, it is thus considered important to adjust the dose of SO or ESA depending on the condition while monitoring clinical laboratory values and adverse events from the beginning of administration.
4.Survey of Fall Rates in Classification of Hypnotics
Haruka YAGI ; Yoshitaka YAMAMOTO ; Ippei USUKUBO ; Yuka YUKA ; Asako SHIMOYAMA ; Shuji AZUMA ; Hirokazu TABATA ; Yasuhiro INAGAKI ; Ryuji KOTERA ; Akio SHIBANAMI
Journal of the Japanese Association of Rural Medicine 2019;68(4):490-495
Hospitalized patients often have insomnia, and in many cases it is necessary to administer hypnotics. Although the hypnotics currently used in Japan are mainly benzodiazepine receptor agonists, there is an associated risk of falling due to muscle relaxant action, and carryover effect. It is believed that orexin receptor antagonists, which have a different mechanism of action from conventional hypnotics, have no muscle relaxant action and are thus considered to be much safer. Therefore, in this study we compared fall rate according to the class of hypnotics that the patient had been taking. We analyzed hospitalized patients taking orexin receptor antagonists (ORB), benzodiazepines (BZDs), and non-BZDs, who had falls and were treated in our hospital from April 1, 2017 to December 31, 2017. Patients were grouped according to the drug they were taking before the fall occurred and the fall rate was calculated and compared. The total number of falls in the target patients was 45, and the total number of people prescribed hypnotics in the study period was 1682. Fall rate by classification of hypnotics was the lowest in the ORB group at 1.45%, which was significantly lower than that of the BZD group, suggesting the possibility that ORBs have minimal influence on falls. In addition, the fall rate in the non-BZD group was significantly lower than that of the BZD group.