1.The Myocardial Protection of Immersion Hearts in Perfluorochemicals during Ischemia.
Koichi Inoue ; Osamu Honda ; Yuji Hanabusa ; Susumu Ando ; Atsushi Ozawa ; Shigeaki Sekiguchi ; Seiro Nomoto ; Mitsutaka Kadokura ; Makoto Yamada ; Toshihiro Takaba
Japanese Journal of Cardiovascular Surgery 1995;24(5):305-310
Topical cardiac hypothermia has unequivocal preservation effects during ischemia, but it has some disadvantages. Topical cooling, especially with ice slush, can injure the phrenic nerve, disturb the equal distribution of the cardioplegic solution due to coronary artery spasm and damage the epicardium. It is easy to prevent cooling injury without topical hypothermia, but the myocardial oxygen demands are increased. In order to supply the myocardium with oxygen for the increased oxygen demands during ischemia, isolated rat hearts were immersed in perfluorochemicals (PFC) which have excellent transportation of oxygen. The effects of immersion in PFC during mild hypothermic ischemia (at 20°C without cardioplegia and at 30°C cardioplegic arrest) on the cardiac function on reperfusion were evaluated. Under 20°C hypothermic ischemia without cardioplegia, cardiac beating was maintained for 20±4 minutes in the hearts were immersed in PFC, and for 10±2 minutes in the hearts that were not immersed in any solution. In the recovery of cardiac function (LVDP and LVmax dp/dt) after mild hypothermic (30°C) cardioplegic arrest, the hearts immersed in PFC showed better results than hearts that were not immersed.
2.Continuous Cervical Epidual Anesthesia in a Patient Suffering from a Severe Pain Caused by Pancoast Tumor: Case Report
Moegi TANAKA ; Yuji NOMOTO ; Emiko TSUCHIDA
Palliative Care Research 2021;16(3):247-251
Pancoast tumor is a relatively rare form of non-small cell lung cancer. Due to its invasion of the brachial plexus, it often causes severe pain and sometimes it is difficult to control the pain. Radiotherapy is often chosen not only for the treatment of the cancer but also for pain relief in Pancoast tumors. However, radiotherapy requires the patient to be kept in a resting supine position, which can cause severe pain during treatment or make it impossible to continue treatment due to pain. In this article, we report our experience with a patient who presented with severe pain in the shoulder and upper extremities due to a Pancoast tumor. Although patient had difficulty in maintaining a resting supine position, continuous cervical epidural anesthesia enabled him to complete radiotherapy under pain control. Despite the risk of infection and bleeding from catheterization, it is important to consider the indication of continuous epidural anesthesia when pain control is poor.
3.Appropriate Color Enhancement Settings for Blue Laser Imaging Facilitates the Diagnosis of Early Gastric Cancer with High Color Contrast
Yuji HIRAOKA ; Yoshimasa MIURA ; Hiroyuki OSAWA ; Yoshie NOMOTO ; Haruo TAKAHASHI ; Masato TSUNODA ; Manabu NAGAYAMA ; Takashi UENO ; Alan Kawarai LEFOR ; Hironori YAMAMOTO
Journal of Gastric Cancer 2021;21(2):142-154
Purpose:
Screening image-enhanced endoscopy for gastrointestinal malignant lesions has progressed. However, the influence of the color enhancement settings for the laser endoscopic system on the visibility of lesions with higher color contrast than their surrounding mucosa has not been established.
Materials and Methods:
Forty early gastric cancers were retrospectively evaluated using color enhancement settings C1 and C2 for laser endoscopic systems with blue laser imaging (BLI), BLI-bright, and linked color imaging (LCI). The visibilities of the malignant lesions in the stomach with the C1 and C2 color enhancements were scored by expert and non-expert endoscopists and compared, and the color differences between the malignant lesions and the surrounding mucosa were assessed.
Results:
Early gastric cancers mainly appeared orange-red on LCI and brown on BLI-bright or BLI. The surrounding mucosae were purple on LCI regardless of the color enhancement but brown or pale green with C1 enhancement and dark green with C2 enhancement on BLIbright or BLI. The mean visibility scores for BLI-bright, BLI, and LCI with C2 enhancement were significantly higher than those with C1 enhancement. The superiority of the C2 enhancement was not demonstrated in the assessments by non-experts, but it was significant for experts using all modes. The C2 color enhancement produced a significantly greater color difference between the malignant lesions and the surrounding mucosa, especially with the use of BLI-bright (P=0.033) and BLI (P<0.001). C2 enhancement tended to be superior regardless of the morphological type, Helicobacter pylori status, or the extension of intestinal metaplasia around the cancer.
Conclusions
Appropriate color enhancement settings improve the visibility of malignant lesions in the stomach and color contrast between the malignant lesions and the surrounding mucosa.
4.Alleviating Distress in Outpatients Undergoing Chemotherapy: Analysis of Resources Required for Palliative Cancer Care Delivery
Hitomi NINOMIYA ; Tetsuya OTANI ; Hiroko TANAKA ; Mamiko KUDO ; Hiroko MITOMI ; Daisuke SATO ; Yuji NOMOTO ; Kazuhiko ITO ; Norio KATAYANAGI
Palliative Care Research 2019;14(1):15-21
This study aimed to clarify the resources required to relieve distress during palliative care delivery to cancer patients. Between April 2015 and March 2017, 1479 outpatients receiving chemotherapy for cancer were screened using the Japanese version of the Support Team Assessment Schedule (STAS-J). When the STAS-J result was 2 points and higher, the patient was considered positive for distress. A certified nurse or pharmacist performed STAS-J screening and, in cases where the patient exhibited distress, took steps to alleviate the problem themselves or consulted another resource. Distress was identified in 181 (12.2%) of the 1479 patients. These 181 patients needed 288 resources. The resources used to alleviate distress were categorized as follows: direct support by certified nurse or pharmacist (153), consultation with the attending physician (98) and other (37). The required resource included the following twelve professionals: attending physician, ophthalmologist, dermatologist, dentist, orthopedic surgeon, palliative care physician, certified nurse, certified pharmacist, medical social worker, clinical psychologist, volunteers for cancer patients, and palliative care team. The frequency of the intervention by the certified nurse or pharmacist (61, 39.9%) in directly alleviating psychiatric distress was significantly higher than by consultation with the attending physician (10, 10.2%) (p<0.0001). However, the frequency of consultation with the attending physician in alleviating physical distress (88, 89.8%) was significantly higher than that of the certified nurse or pharmacist (92, 60.1%) (p<0.0001). We conclude that the certified nurse or pharmacist is important for the delivery of palliative cancer care, because they can directly provide relief from psychiatric distress.