1.Reoperation for Stanford B Aortic Dissection with Open Stent Grafting
Kentaro Tamura ; Naomichi Uchida ; Akira Katayama ; Miwa Sutoh ; Naoki Murao ; Masatsugu Kuraoka
Japanese Journal of Cardiovascular Surgery 2010;39(1):41-44
A 65-year-old man had received closure of the entry and false lumen Stanford type B acute aortic dissection via left thoratectomy 23 years previously. The patient underwent emergency graft replacement for a ruptured aneurysm of the thoraco-abdominal aorta 10 years previously. Enhanced computed tomography (ECT) revealed that the residual aortic dissection of the distal arch and the descending aorta were dilated. Reoperation via left thoracotomy usually requires a long cardiopulmonary bypass time and intraoperative bleeding. So we selected to perform open stent-grafting through median sternotomy alone, avoiding a left thoracotomy.
2.Rupture of Left Ventricular Outflow Tract Pseudoaneurysm Concomitant with Infectious Endocarditis
Akira Katayama ; Naomichi Uchida ; Kentaro Tamura ; Miwa Sutoh ; Naoki Murao ; Masatsugu Kuraoka
Japanese Journal of Cardiovascular Surgery 2010;39(6):332-334
An 82-year-old woman fell into a state of shock during the treatment for a urinary tract infection. Computed tomography and transthoracic echocardiography revealed massive pericardial effusion. Pericardiectomy was performed in the operating room and hemorrhagic effusion was observed. Emergent sternotomy was performed, and the bleeding site was located at the posterior portion of the left ventricular outflow. We diagnosed a rupture of a left ventricular outflow tract pseudoaneurysm after infectious endocarditis. A pericardium patch closure of the pseudoaneurysm and an aortic valve replacement were performed. The patient was discharged 35 days after the operation without recurrence of infection. Left ventricular outflow tract pseudoaneurysms is an uncommon complication following infective endocarditis, aortic valve surgery or chest trauma. Transesophageal echocardiography and multidetector-row computed tomography (MDCT) is useful for identifying such lesions.
3.Perioperative Evaluation of Respiratory Muscle Strength after Scoliosis Correction in Patients with Duchenne Muscular Dystrophy.
Wataru SAITO ; Kosuke MIZUNO ; Gen INOUE ; Takayuki IMURA ; Toshiyuki NAKAZAWA ; Masayuki MIYAGI ; Eiki SHIRASAWA ; Kentaro UCHIDA ; Masashi TAKASO
Asian Spine Journal 2017;11(5):787-792
STUDY DESIGN: Retrospective cohort study. PURPOSE: To investigate the effect of spinal correction on respiratory muscle strength in patients with Duchenne muscular dystrophy (DMD). OVERVIEW OF LITERATURE: Several studies have reported that scoliosis correction in patients with DMD does not improve pulmonary function. In these studies, pulmonary function was evaluated using the traditional spirometric values of percent vital capacity (%VC) and percent forced vital capacity (%FVC). However, traditional spirometry may not be suitable for patients with DMD because the results can be influenced by patient fatigue or level of understanding. Therefore, we evaluated respiratory function focusing on respiratory muscle strength using maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP), and sniff nasal inspiratory pressure (SNIP), in addition to %VC and %FVC. METHODS: We retrospectively reviewed 16 patients with DMD who underwent spinal correction surgery between 2006 and 2011 at Kitasato University Hospital. All patients were males, and the mean age was 13.5 years. Respiratory muscle strength was evaluated using MIP, MEP, and SNIP. Measurements were obtained preoperatively and at 1 and 6 months postoperatively, and %VC and %FVC were obtained preoperatively and within 6 months postoperatively. RESULTS: The mean preoperative and postoperative %VC values were 54.0% and 51.7%, whereas the mean %FVC values were 53.9% and 53.2%, respectively. The mean MIP, MEP, and SNIP values obtained preoperatively and at 1 and 6 months postoperatively were as follows: MIP, 40.5, 42.7 and 47.2 cm H₂O; MEP, 26.0, 28.0, and 29.0 cm H₂O; and SNIP, 33.4, 33.0, and 33.0 cm H₂O; respectively. The mean MIP and MEP values significantly improved postoperatively. There were no significant differences in SNIP, %VC, or %FVC preand postoperatively. CONCLUSIONS: By focusing on respiratory muscle strength, our results suggest that scoliosis correction in patients with DMD might have a favorable effect on respiratory function.
Cohort Studies
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Fatigue
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Humans
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Male
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Muscular Dystrophy, Duchenne*
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Respiratory Muscles*
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Retrospective Studies
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Scoliosis*
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Spirometry
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Vital Capacity
4.Gingyo Gedokusan vs Oseltamivir for the Treatment of Uncomplicated Influenza and Influenza-like illness : An Open-label Prospective Study
Kentaro Iwata ; Wataru Igarashi ; Midori Honjo ; Takashi Nishimoto ; Kyoko Shinya ; Akiko Makino ; Kazuo Mitani ; Yoshiko Tatsumi ; Hiroyuki Ninomiya ; Kumi Higasa ; Seiichiro Usuki ; Hiroki Kagawa ; Daisuke Uchida ; Kohei Takimoto ; Rei Suganaga ; Hiroo Matsuo ; Yuichiro Oba ; Mami Horigome ; Hideaki Oka ; Goh Ohji ; Yasuhisa Abe ; Hiroyuki Yoshida ; Shohiro Kinoshita ; Midori Hirai
General Medicine 2013;14(1):13-22
Background: Gingyo-gedoku-san (GGGS) is an herbal medicine approved for upper respiratory infections in Japan. We conducted an open-label, multi-center, prospective trial, comparing GGGS with oseltamivir in patients with influenza and influenza-like illness (ILI) as a pilot study.
Methods: Subjects were healthy persons aged between 16 and 40, and were enrolled from January 12, 2010 to March 24, 2011. Fifteen patients were enrolled in this trial (8 and 7 for GGGS and oseltamivir, respectively). RT-PCR was positive for pandemic influenza A (H1N1) in 10 patients. The patients were provided with either GGGS or oseltamivir for 5 days. The primary outcome was mortality and/or hospitalization 7 days after the initial diagnosis. Body temperature and other clinical characteristics were also evaluated.
Results: All patients recovered from illness without complication or hospitalization. The mean time to resolve symptoms for the GGGS and oseltamivir groups was 3.9 days and 3.3 days, respectively (p=0.43). The GGGS group appeared to have a smaller symptom score AUC than the oseltamivir group, (p=0.26). Time to recover activity level appeared to be shorter in the GGGS group (p=0.10), with shorter time to recover health status (p=0.02). Sub-group analysis on patients with positive PCR showed similar results between the two groups.
Conclusion: GGGS was associated with symptom improvements resembling oseltamivir for both influenza and ILI. Randomized controlled trials involving larger sample sizes are needed to confirm these results.
5.Successful Surgical Treatment of Tracheo-Innominate Artery Fistula Complicated with Tracheostomy
Kentaro AKABANE ; Tetsuro UCHIDA ; Atsushi YAMASHITA ; Masahiro MIZUMOTO ; Yoshinori KURODA ; Mitsuaki SADAHIRO
Japanese Journal of Cardiovascular Surgery 2019;48(1):91-94
Tracheo-innominate artery fistula is a rare complication after tracheostomy, but sometimes presents with fatal bleeding. A 10-year-old girl presented with massive bleeding from a tracheostomy that she underwent for prolonged respiratory failure caused by sequelae of mumps encephalitis. Tracheo-innominate artery fistula, complicated by tracheostomy was diagnosed, and she was transferred to our institution. Under general anesthesia, she underwent transection of the innominate artery to exclude the tracheo-innominate artery fistula via median sternotomy. Her postoperative course was uneventful without recurrent bleeding or infection. Considering the risk of tracheo-innominate artery fistula, careful observation is necessary to prevent catastrophic bleeding in patients with mechanical respiratory support via tracheostomy.