1.Clinical efficacy of hydroxyzine hydrochloride in combination with haloperidol in the management of nausea induced by continuous infusion of opioids
Keisuke Kaneishi ; Naoki Matsuo ; Kinomi Yomiya
Palliative Care Research 2006;1(1):101-108
Purpose: Nausea is a common distressing symptom experienced by advanced cancer patients. This study compared the clinical efficacy of haloperidol to hydroxyzine hydrochloride in combination with haloperidol in the management of nausea induced by continuous infusion of opioids. Methods: This retrospective study comprised 50 advanced cancer patients using continuous infusion of opioids who had been administered either haloperidol alone (haloperidol group) or hydroxyzine hydrochloride with haloperidol (hydroxyzine hydrochloride group); their nausea and characteristics were assessed using multivariate analysis. Results: After the continuous infusion of opioids, nausea occurred in 34% patients in the haloperidol group and 10% patients in the hydroxyzine hydrochloride group. No significant differences were observed in patient characteristics, except for the number of the patients using infusion of opioids. By multivariate analysis, nausea before using continuous infusion of opioids, ileus, and haloperidol without hydroxyzine hydrochloride were extracted as the risk factors of nausea. In both the groups, nausea occurred only in the patients using morphine; nausea occurred in 32.5% patients in the haloperidol group and in 4.5% patients in the hydroxyzine hydrochloride group. Conclusion: Hydroxyzine hydrochloride in combination with haloperidol was observed to be more effective than haloperidol alone in the management of nausea induced by continuous infusion of opioids.
2.Aneurysmectomy of Mid-Ventricular Obstructive Hypertrophic Cardiomyopathy with an Apical Ventricular Aneurysm
Masaki Yamamoto ; Hirokazu Murayama ; Hiroyuki Kito ; Kozo Matsuo ; Naoki Hayashida ; Soichi Asano ; Momoko Yanai ; Katsuhiko Tatsuno
Japanese Journal of Cardiovascular Surgery 2005;34(5):365-369
A typical feature of mid-ventricular obstructive hypertrophic cardiomyopathy (MVO-HCM), is obvious hypertrophy of the mid-ventricular muscle and ventricle with transformation into the shape of an hourglass. We report a 60-year-old woman who had been given a diagnosis of apical type hypertrophic cardiomyopathy 12 years previously, but it changed to MVO-HCM with apical left ventricular aneurysm. We considered the impending rupture of the aneurysm because its wall was thin and pericardial effusion was detected by UCG (ultrasonic cardiograph). Urgent surgery was performed consisting of ventricular aneurysmectomy and patch reconstruction. After the surgery, a pseudoaneurysm was found in cardiac apex, so we performed surgery again. A residual shunt in the trabeculation caused the pseudoaneurysm, but its origin was not clear. She has been fine for 18 months without complications such as recurrence of aneurysm, ventricular arrhythmia or left ventricular dysfunction since the last surgery.
3.Validity of Emergency Thoracic Aortic Surgery in Octogenarians
Masaki Yamamoto ; Hirokazu Murayama ; Hiroyuki Kito ; Kozo Matsuo ; Naoki Hayashida ; Soichi Asano ; Masao Hirano ; Katsuhiko Tatsuno
Japanese Journal of Cardiovascular Surgery 2006;35(5):255-260
Between January 1994 and October 2004, 87 patients underwent emergency thoracic aortic surgery. Of these, 11 patients were more than 80 years old (O-group) and 76 were less than 80 years old (Y-group). A total of 58 patients (6 in O-group and 52 in Y-group) were treated for acute type-A aortic dissection, 5 (0 in O-group and 5 in Y-group) for acute type-B aortic dissection and 21 (4 in O-group and 17 in Y-group) for the involved rupture of a thoracic aortic aneurysm. The operative procedures consisted of the replacement of either the ascending, or the ascending and transverse aorta in 71 patients (8 in O-group and 63 in Y-group), and the replacement of the distal descending aorta in 15 patients (3 in O-group and 12 in Y-group). The operative mortality rates were 27.2% (3 patients) and 19.7% (15 patients) in the O- and Y-groups, respectively, with no significant difference between the groups. The rate of early complications, including circulatory failure, respiratory failure and cerebral infarction, did not statistically differ between the 2 groups. The overall 2-year survival rates of the patients who survived the operation were 83.3% in the O-group and 95.1% in the Y-group. Moreorer, 75% of the patients (6 of 8) who survived the surgery regained normal activities of daily life after the surgery, at a level similar to before the surgery. The present data indicates that emergency thoracic aortic surgery can be justified in selected in octogenarian patients.
4.Heparin Anticoagulation during Cardiopulmonary Bypass for Thoracoabdominal Aorta Replacement in a Patient with a History of Heparin-Induced Thrombocytopenia
Masanao Ohba ; Hirokazu Murayama ; Hiroyuki Kito ; Kozo Matsuo ; Naoki Hayashida ; Souichi Asano ; Masao Hirano ; Shigeki Miyata
Japanese Journal of Cardiovascular Surgery 2010;39(3):144-147
Immune heparin-induced thrombocytopenia (HIT) is a crucial side effect of heparin therapy. We report the case of a 52-year-old man who was strongly suspected of having HIT after urgent descending aorta replacement. This case required continuous hemodiafiltration (CHDF) anticoagulated with unfractionated heparin (UFH) for acute renal failure after the operation. The patient developed thrombocytopenia and thrombus emphraxis in the circuit on the seventh day and was suspected of having HIT. UFH was ceased and replaced with argatroban. After then, thrombus emphraxis was not seen in the circuit and the platelet count was recovered promptly. He tested positive in an enzyme-linked immunosorbent assay for anti-platelet factor 4/heparin antibodies (anti-PF4/H Abs). Six months later, we found, an expanding thoracoabdominal aortic aneurysm and performed thoracoabdominal aorta replacement. We selected heparin anticoagulation for cardiopulmonary bypass because anti-PF4/H Abs were negative at that time. Thrombus emphraxis was not found during the operation. The patient developed neither thrombocytopenia nor thrombosis in the perioperative period.
5.Perceptions of Nurses Involved in Patient Decision-making regarding Palliative Sedation
Sayuri KUDO ; Eriko TOMINO ; Naoki MATSUO
Palliative Care Research 2020;15(3):205-212
This study aimed to reveal the perceptions of nurses involved in patient decision-making regarding palliative sedation. Semi-structured interviews were conducted with six nurses working at hospices, and the data were qualitatively and descriptively analyzed. Nurses’ perception regarding “difficulties involved in the decision-making process,” “stance of placing emphasis on patients’ preferences,” and “coping behaviors for participating in the decision-making process” were identified. The nurses had difficulties associated with concerns about making patients conscious of death and carried a heavy burden, and it was suggested that they find it difficult to explain sedation or confirm patients’ preferences. On the other hand, the nurses relied on their moral principles to make judgments, showing that they try to emphasize patients’ preferences. Multidisciplinary discussions are needed to provide psychological support for nurses involved in patient decision-making on palliative sedation. In terms of the educational aspect, the need for experiences was cited, suggesting that it is necessary to educate nurses through hands-on activities such as role-playing exercises concerning making decisions about sedation.
6.Evaluation of follow-up observation using human epididymis protein 4, a tumor marker, in patients with ovarian cancer
Masaya UNO ; Rie MATSUO ; Naoki MAEZAWA ; Tomoyasu KATO
Obstetrics & Gynecology Science 2023;66(4):290-299
Objective:
We evaluated the usefulness of human epididymis protein 4 (HE4), a tumor marker, during and after treatment in patients with ovarian cancer (OC).
Methods:
We included Japanese patients newly diagnosed with OC treated at the National Cancer Center Hospital between 2014 and 2021. The HE4 levels were measured in the serum stored during diagnosis. To evaluate the concordance between HE4 and the imaging results, we employed sequential pairs of blood sampling points and the results of imaging examinations. We compared the timing of the elevated HE4 levels, imaging diagnoses, and elevated cancer antigen 125 (CA125) levels in patients with recurrence. The Ethics Review Committee of our institution (2021-056) reviewed this study.
Results:
Forty-eight patients with epithelial OC were eligible for enrollment. The sensitivity, specificity, and positive and negative predictive values of HE4 (criterion, 70 pmol/L) for disease progression during the follow-up period were 79.4%, 59.1%, 32.5%, and 92.0%, respectively (time point, n=317). We evaluated the relationship between HE4 and CA125 variability and disease status (recurrence or no recurrence). For recurrence, the sensitivity and negative predictive value of HE4 (criterion, 70 pmol/L), CA125 (criterion, 35 U/mL), and combination of HE4 and CA125 were 77.8%, 85.2%, and 92.6% and 75.0%, 82.6%, and 88.9%, respectively (n=48). Among the 27 patients who exhibited recurrence, 16 and nine showed earlier increased HE4 levels than the relevant imaging and CA125 levels, respectively.
Conclusion
HE4 may be a valuable marker for follow-up during and after OC therapy. A complementary role for HE4 and CA125 measurements was suggested for follow-up observations.
7.Experience with 10 Seminars and Workshops for Medical Education
Masayuki NIWA ; Yasuyuki SUZUKI ; Kazuhiko FUJISAKI ; Tomomi KATO ; Mayumi TANIMOTO ; Osamu MATSUO ; Naoki NAGO ; Ichiro YOSHIDA ; Yuzo TAKAHASHI
Medical Education 2005;36(2):89-96
We have organized the Seminar and Workshop for Medical Education (SWME) 10 times from 2000 through 2003. More than 1, 200 persons have participated, including teachers, physicians, students, and simulated patients. The themes of the SWME have included a problem-based learning tutorial system, medical interview skills, objective structured clinical examinations, medical ethics, advanced cardiac life support/basic life support, evidence-based medicine, coaching technology, medical English education, and crisis management education. Invited lecturers from throughout the country organized most of these workshops. Advantages of the SWME are two-fold:(1) improving the medical teaching skills of each participant and (2) scouting for good young lecturers. Workshop reports are published in our annual monographs and other materials. The present paper is a historical review of the SWME and also describes the nationwide scope of faculty development.
8.Axillo-Iliac Bypass in a Child with Relative Graft Stenosis Following Reconstructive Repair of Interrupted Aortic Arch Type A.
Seiichi Yamaguchi ; Hirokazu Murayama ; Naoki Hayashida ; Kozo Matsuo ; Atsushi Hata ; Soichi Asano ; Hiroyuki Watanabe ; Yasutsugu Nakagawa ; Katsuhiko Tatsuno
Japanese Journal of Cardiovascular Surgery 2000;29(3):187-190
A 12-year-old girl had relative graft stenosis following the reconstruction of type A interrupted aortic arch. At 25 days after birth she underwent ascending aorta-descending aorta bypass with a 7mm knitted Dacron graft, ligation of the patent ductus arteriosus and pulmonary artery banding. She had patch closure of a ventricular septal defect (VSD) as well at 20 months of age. At age 12 catheterization was carried out, because she had headache and dizziness on exertion. The pressure of the ascending aorta was 163/79mmHg and the pressure gradient between the ascending and the descending aorta was 65mmHg. Aortography revealed severe stenosis of the graft, which might have occurred according to her growth. An extra-anatomic bypass was placed between the right axillary and the right common iliac artery through the intrapleural and preperitoneal route with a 10mm Dacron graft. Six months later, the blood pressure was 108/63mmHg in the upper extremities, the pressure gradient between the upper and lower extremities was reduced to 18mmHg, and headache and dizziness had disappeared.
9.A Case of Endovascular Aortic Repair with a Vascular Embolic Device and Stent-Graft for the Anastomotic Pseudoaneurysm in the Ascending Aorta
Soichi Asano ; Naoki Hayashida ; Masanao Ohba ; Kozo Matsuo ; Hiroyuki Kito ; Nobuyuki Hirose ; Takuto Maruyama ; Masashi Kabasawa ; Hideomi Hasegawa ; Hirokazu Murayama
Japanese Journal of Cardiovascular Surgery 2016;45(5):238-241
We report a case of a 72-year-old woman, who had an anastomotic pseudoaneurysm in the ascending aorta, successfully treated by endovascular aortic repair with vascular embolic devise and stent-graft. It seemed to be high risk to achieve conventional surgery with extracorporeal circulation, therefore we selected endovascular treatment because she had a bleeding tendency which derived from disseminated intravascular coagulation. Then, we adopted stent-grafting with a vascular embolic device, because the distal side of pseudoaneurysm had too short a landing zone to cover the stent-graft only. The patient well tolerated this procedure and her postoperative course was uneventful. The pseudoaneurysm shrank at 6th months after operation.
10.Unruptured Paraclinoid Carotid Aneurysms Occur More Frequently in Younger Ages
Reo KAWAGUCHI ; Shigeru MIYACHI ; Tomotaka OHSHIMA ; Naoki MATSUO
Neurointervention 2021;16(2):111-116
Purpose:
We investigated the age distribution of cerebral saccular aneurysms in various locations to clarify the differences by location and discuss the mechanism of formation.
Materials and Methods:
We retrospectively assessed clinical material obtained from 1,252 unruptured aneurysms treated with endovascular embolization between 2004 and 2019. Age, sex, laterality, and size were investigated by the location of aneurysms, classified as cavernous internal carotid artery (ICA), paraclinoid ICA, supraclinoid ICA, anterior communicating artery, anterior cerebral artery, middle cerebral artery, basilar artery complex, and posterior inferior cerebellar artery. Paraclinoid aneurysms were subclassified into 3 patterns according to their projecting direction: S-type, with superior protrusion; M-type, with medial protrusion; and P-type, with posteroinferior protrusion.
Results:
There was no significant difference by location for sex, laterality, and size. The mean age of patients with paraclinoid aneurysms (56.5 years old) was significantly lower than that of other aneurysm patients (64.3 years old). Notably, 40% of the patients with M-type aneurysms were <50 years old. This percentage was significantly higher than that of aneurysms at other locations (P<0.05).
Conclusion
We found a young female predominance for patients with paraclinoid carotid aneurysms. This study may suggest that congenital factors contribute to paraclinoid aneurysm formation as well acquired factors, such as hemodynamic stress, atherosclerotic wall damage, and local inflammation.