2.Review of Post-Operative Cases of Stomach Cancer in Southern Fukushima Prefecture.
Nobuyuki KOBAYASHI ; Fusakuni KURODA ; Yoichi NARUSHIMA ; Shiro TAKASE ; Nobuhide SAKAMOTO ; Ryoichi ENDO
Journal of the Japanese Association of Rural Medicine 1992;41(1):25-28
Clinical research was carried out on stomach cancer cases treated in the surgery department of our hospital, which provides medical services to the populace in the southern part of Fukushima Prefecture.
During the 10-year period between Jan. 1981 and Dec. 1990, a total of 641 cases were referred to surgery. Of the total, 568 cases or 88.6% were operated on and 501 or 78.2% were radical gastrectomy cases.
When a careful check was made on these cases with respect of staging, histology, invasion degree and lymph node metastasis, it was found that the ratio of early stage stomach cancer cases was increasing steadfastly year after year.
Regarding the 5-year survival rate, 63.7% was scored by the operated cases and 73.2% by radical gastrectomy cases. These rates were up by 18.6% and 17.0% from five years ago. The above findings indicate that improvement in treatment results is due to technical progress in detection of gastric cancer at early stages.
3.Surgical Management for Arteriosclerosis Obliterans Complicated with Ischemic Heart Disease
Kiyoshi Inoue ; Kanji Kawachi ; Tetsuji Kawata ; Shuichi Kobayashi ; Hiroaki Nishioka ; Yoshihiro Hamada ; Yoichi Kameda ; Nobuki Tabayashi ; Soichiro Kitamura
Japanese Journal of Cardiovascular Surgery 1995;24(4):238-242
We studied the incidence of associated ischemic heart disease (IHD) among 110 consecutive patients (males 99, females 11, mean age 66.0±8.8 years) operated upon for arteriosclerosis obliterans (ASO). The screening of IHD was routinely conducted by using dipyridamole thallium scintigraphy, and when results were positive, the lesion was further confirmed by selective coronary angiography. More than 50% luminal stenosis of the major coronary arteries was judged as positive for IHD. Forty-eight patients (44%) of ASO were simultaneously afflicted with IHD. Ten patients were operated on for ASO after coronary artery bypass grafting (CABG), five for ASO and IHD (CABG) simultaneously, eight for ASO after PTCA. Twenty-five patients underwent surgery for ASO only with infusion of nitroglycerin, with or without diltiazem. We also compared 15 patients with thrombotic obliteration at the end of the abdominal aorta o: Leriche's syndrome with the remaining 95 patients in this series. The patients with Leriche's syndrome were younger and had higher incidences of hyperlipidemia (p=0.0254) and IHD (p=0.0225) than those without Leriche's syndrome. In surgical treatment for ASO, particularly for Leriche's syndrome, meticulous attention to complications is needed due to the frequent association of IHD. When both ASO and IHD are severe enough to warrant surgical treatment at the earliest opportunity, we recommend concomitant operations for ASO and IHD (CABG).
4.A Case of \it{Legionella} Pneumonia Complicated by ARDS, Acute Renal Failure and Shock
Kazuhisa ITOH ; Hideyuki KOBAYASHI ; Satoshi HASEGAWA ; Ken YOSHIDA ; Osamu NAKAGAWA ; Yoichi IWAFUCHI ; Minoru ABE ; Kaoru KUNISADA ; Akira KAMIMURA
Journal of the Japanese Association of Rural Medicine 2006;55(1):18-24
A 55-year-old man visited his neighborhood general practitioner complaining of headache, fever and wet cough on July 7, 2003, but there were no sigins that his symptoms would subside. Since an abnormal shadow was found on chest X-ray on July 11, he was referred to our department and hospitalized on the same day. We started to treat him on the assumption that he had community-acquired pneumonia due-to common pathogens. However, he developed severe hypoxemia, and abnormal shadows rapidly progressed to affect both lungs, which led us to suspect that he had acute respiratory distress syndrome (ARDS). We identified the pathogen by examining urinary antigens and serum antibodies and diagnosed of his case as Legionella pneumonia. Although he suffered complications of acute renal failure and shock, the respirator was withdrawn after 11 days of controlled mechanical ventilation, as he was steadily recovering from his illness. The patient was discharged from the hospital on September 9. Although the mortality of legionella pneumonia, when complicated by ARDS, acute renal failure and shock as in the present case, has been reported to be as high as 50 to 80%, we consider that the administration of neutrophil elastase inhibitors and steroids was effective against this disorder.
Shock
;
Respiratory Distress Syndrome, Adult
;
Pneumonia
;
Kidney Failure, Acute
;
Complicated
5.A Case of Legionella Pneumonia Complicated by ARDS, Acute Renal Failure and Shock
Kazuhisa ITOH ; Hideyuki KOBAYASHI ; Satoshi HASEGAWA ; Ken YOSHIDA ; Osamu NAKAGAWA ; Yoichi IWAFUCHI ; Minoru ABE ; Kaoru KUNISADA ; Akira KAMIMURA
Journal of the Japanese Association of Rural Medicine 2006;55(1):18-24
A 55-year-old man visited his neighborhood general practitioner complaining of headache, fever and wet cough on July 7, 2003, but there were no sigins that his symptoms would subside. Since an abnormal shadow was found on chest X-ray on July 11, he was referred to our department and hospitalized on the same day. We started to treat him on the assumption that he had community-acquired pneumonia due-to common pathogens. However, he developed severe hypoxemia, and abnormal shadows rapidly progressed to affect both lungs, which led us to suspect that he had acute respiratory distress syndrome (ARDS). We identified the pathogen by examining urinary antigens and serum antibodies and diagnosed of his case as Legionella pneumonia. Although he suffered complications of acute renal failure and shock, the respirator was withdrawn after 11 days of controlled mechanical ventilation, as he was steadily recovering from his illness. The patient was discharged from the hospital on September 9. Although the mortality of legionella pneumonia, when complicated by ARDS, acute renal failure and shock as in the present case, has been reported to be as high as 50 to 80%, we consider that the administration of neutrophil elastase inhibitors and steroids was effective against this disorder.
6.Comparison between Bilateral C2 Pedicle Screwing and Unilateral C2 Pedicle Screwing, Combined with Contralateral C2 Laminar Screwing, for Atlantoaxial Posterior Fixation.
Naohisa MIYAKOSHI ; Michio HONGO ; Takashi KOBAYASHI ; Tetsuya SUZUKI ; Eiji ABE ; Yoichi SHIMADA
Asian Spine Journal 2014;8(6):777-785
STUDY DESIGN: A retrospective study. PURPOSE: To compare clinical and radiological outcomes between bilateral C2 pedicle screwing (C2PS) and unilateral C2PS, combined with contralateral C2 laminar screwing (LS), for posterior atlantoaxial fixation. OVERVIEW OF LITERATURE: Posterior fixation with C1 lateral mass screwing (C1LMS) and C2PS (C1LMS-C2PS method) is an accepted procedure for rigid atlantoaxial stabilization. However, conventional bilateral C2PS is not always allowed in this method due to anatomical variations of C2 pedicles and/or asymmetry of the vertebral artery. Although unilateral C2PS plus contralateral LS (C2PS+LS) is an alternative in such cases, the efficacy of this procedure has not been evaluated in controlled studies (i.e., with bilateral C2PS as a control). METHODS: Clinical and radiological records of patients who underwent the C1LMS-C2PS method, using unilateral C2PS+LS (n=9), and those treated using conventional bilateral C2PS (n=10) were compared, with a minimum two years follow-up. RESULTS: Postoperative complications related to the unilateral C2PS+LS technique included one case of spontaneous spinous process fracture of C2. A C1 anterior arch fracture occurred after a fall in one patient, who underwent bilateral C2PS and C1 laminectomy. No significant differences were seen between the groups in reduction of neck pain after surgery or improvement of neurological status, as evaluated using the Japanese Orthopaedic Association score. A delayed union occurred in one patient each of the groups, with the final fusion rate being 100% in both groups. CONCLUSIONS: Clinical and radiological outcomes of unilateral C2PS+LS were comparable with those of the bilateral C2PS fixation technique for the C1LMS-C2PS method.
Asian Continental Ancestry Group
;
Follow-Up Studies
;
Humans
;
Laminectomy
;
Neck Pain
;
Postoperative Complications
;
Retrospective Studies
;
Vertebral Artery
7.Age-Related Prevalence of Periodontoid Calcification and Its Associations with Acute Cervical Pain
Takashi KOBAYASHI ; Naohisa MIYAKOSHI ; Norikazu KONNO ; Yoshinori ISHIKAWA ; Hideaki NOGUCHI ; Yoichi SHIMADA
Asian Spine Journal 2018;12(6):1117-1122
STUDY DESIGN: Prospective study. PURPOSE: To assess the prevalence of periodontoid calcification and its associations with acute cervical pain. OVERVIEW OF LITERATURE: Calcium pyrophosphate dihydrate (CPPD) deposition disease is a common rheumatological disorder that occurs especially in elderly patients. Although CPPD crystals induce acute arthritis, these crystals are not usually symptomatic. Calcification surrounding the odontoid process (periodontoid calcification) has been reported to induce inflammation, resulting in acute neck pain. This disease is called crowned dens syndrome. Whether calcification induces inflammation or whether the crystals are symptomatic remains unclear. METHODS: The prevalence of periodontoid calcification at the atlas transverse ligament was examined by computed tomography of the upper cervical spine in patients suspected of brain disease but no cervical pain (control group, n=296), patients with pseudogout of the peripheral joints but no cervical pain (arthritis group, n=41), and patients with acute neck pain (neck pain group, n=22). Next, the correlation between the prevalence of periodontoid calcification and symptoms was analyzed. RESULTS: In the control group, 40 patients (13.5%) showed periodontoid calcification with no significant difference in the prevalence with gender. The prevalence of calcification increased significantly with age (p=0.002). In the arthritis group, 26 patients (63.4%) reported periodontoid calcification. In the neck pain group, 14 patients (63.6%) reported periodontoid calcification. Multiple logistic regression analysis by age and group revealed that higher age, inclusion in the arthritis group, and inclusion in the neck pain group significantly affected the prevalence of calcification. CONCLUSIONS: Our results cumulatively suggest that periodontoid calcification is an aging-related reaction and that calcification per se does not always cause neck pain. Periodontoid calcification was observed more frequently in patients with pseudogout of the peripheral joints and in those with acute neck pain than in asymptomatic control patients.
Aged
;
Arthritis
;
Brain Diseases
;
Calcium Pyrophosphate
;
Chondrocalcinosis
;
Crowns
;
Humans
;
Inflammation
;
Joints
;
Ligaments
;
Logistic Models
;
Neck Pain
;
Odontoid Process
;
Prevalence
;
Prospective Studies
;
Spine
8.The use of conization to identify and treat severe lesions among prediagnosed CIN1 and 2 patients in Japan.
Mikio MIKAMI ; Masae IKEDA ; Hidetaka SATO ; Haruko IWASE ; Takayuki ENOMOTO ; Yoichi KOBAYASHI ; Hidetaka KATABUCHI
Journal of Gynecologic Oncology 2018;29(4):e46-
OBJECTIVE: To evaluate the clinical efficiency of identifying patients with suspicious severe lesions by conization among prediagnosed cervical intraepithelial neoplasia (CIN) 1 and 2 patients in Japan. METHODS: The data in a Japanese nation-wide registry for cervical cancer (2009 and 2011) was collected to analyze the clinical efficacy of pre- and postdiagnosis for 13,215 Japanese women who underwent treatment by conization. Their preoperative and postoperative histologic findings and clinical outcomes were evaluated using standard statistical procedures including clinical and demographic characteristics. RESULTS: Almost half of 1,536 women who were treated by conization after the prediagnosis of CIN1 and 2 because the lesions showed no evidence of natural regression actually contained CIN1–2 (45.0%), CIN3 (47%), or invasive cancer (2.7%) in their cervical tissue. They underwent conization either for therapeutic (treatment) (78.5%) or diagnostic (21.5%) reasons. Invasive disease was diagnosed postoperatively more often in diagnostic cases (6.1%) than in therapeutic cases (2.8%). All the patients survived their diagnostic and therapeutic conization after approximately 30 months of follow up. CONCLUSION: Our study shows that the continuous observation of the prediagnosed CIN1 and 2 cases by the combination of cytology, colposcopy and histology in Japan has worked successfully to identify severe lesions by using conization as well in the process.
Asian Continental Ancestry Group
;
Cervical Intraepithelial Neoplasia
;
Colposcopy
;
Conization*
;
Female
;
Follow-Up Studies
;
Humans
;
Japan*
;
Treatment Outcome
;
Uterine Cervical Neoplasms
9.Perioperative Medical Complications after Posterior Approach Spinal Instrumentation Surgery for Osteoporotic Vertebral Collapse: A Comparative Study in Patients with Primary Osteoporosis and Those with Secondary Osteoporosis.
Naohisa MIYAKOSHI ; Takashi KOBAYASHI ; Tetsuya SUZUKI ; Kazuma KIKUCHI ; Yuji KASUKAWA ; Yoichi SHIMADA
Asian Spine Journal 2017;11(5):756-762
STUDY DESIGN: A retrospective comparative study. PURPOSE: To compare perioperative medical complications after posterior approach spinal instrumentation surgery for osteoporotic vertebral collapse (OVC) between patients with primary osteoporosis and those with secondary osteoporosis. OVERVIEW OF LITERATURE: With increased aging of society, the demand for instrumentation surgery for an osteoporotic spine has been increasing. However, no studies have compared the rates or severities of perioperative complications after spinal instrumentation surgery between patients with primary osteoporosis and those with secondary osteoporosis. METHODS: Ninety-one patients with OVC aged ≥50 years (23 males and 68 females) who underwent posterior approach vertebral replacement with cages or posterior spinal fusion combined with vertebroplasty were divided into primary (n=56) and secondary (n=35) osteoporosis groups. Bone mineral density (BMD), osteoporosis treatment prior to OVC, operative invasiveness, and perioperative medical complications were compared. RESULTS: Diabetes mellitus (51.4%) was the most common cause of secondary osteoporosis, followed by glucocorticoid use (22.9%). No significant differences were seen in terms of age, gender, BMD, osteoporosis treatment, or operative invasiveness, including the number of levels fused, estimated blood loss, and number of patients requiring transfusion. No significant difference in the incidence of perioperative complications were observed between the primary and secondary osteoporosis groups (16.1% vs. 22.9%). However, surgical site infection (SSI) was significantly more frequently seen in the secondary osteoporosis group (11.4%) than in the primary osteoporosis group (1.8%; p<0.05). One patient in the secondary osteoporosis group developed methicillin-resistant Staphylococcus aureus infection that ultimately required instrument removal. CONCLUSIONS: The overall incidence of perioperative medical complications after posterior approach spinal instrumentation surgery for OVC was comparable between the primary and secondary osteoporosis groups under conditions of similar background characteristics and operative invasiveness. However, SSI (particularly more severe cases) occurred more frequently in patients with secondary osteoporosis.
Aging
;
Bone Density
;
Diabetes Mellitus
;
Humans
;
Incidence
;
Male
;
Methicillin-Resistant Staphylococcus aureus
;
Osteoporosis*
;
Retrospective Studies
;
Spinal Fusion
;
Spine
;
Surgical Wound Infection
;
Vertebroplasty
10.Association of menopause, aging and treatment procedures with positive margins after therapeutic cervical conization for CIN 3: a retrospective study of 8,856 patients by the Japan Society of Obstetrics and Gynecology
Masae IKEDA ; Mikio MIKAMI ; Miwa YASAKA ; Takayuki ENOMOTO ; Yoichi KOBAYASHI ; Satoru NAGASE ; Nagase YOKOYAMA ; Hidetaka KATABUCHI
Journal of Gynecologic Oncology 2021;32(5):e68-
Objective:
The Japan Society of Obstetrics and Gynecology conducted a retrospective multi-institutional survey of patients who underwent cervical conization in Japan. This study aimed to determine the predictive factors for positive surgical margins in cervical intraepithelial neoplasia grade 3 (CIN 3) patients after therapeutic cervical conization and those for positive margins in patients who did not experience recurrence and did not undergo additional treatment.
Methods:
In 2009 and 2013, 14,832 patients underwent cervical conization at 205 institutions in Japan. Of these, 8856 patients who underwent therapeutic conization fulfilled the inclusion criteria. Their histologic findings and clinical outcomes were evaluated based on standard statistical procedures and clinical and demographic characteristics.
Results:
Negative and positive margins were observed in 7,585 and 1,271 (14.4%) patients, respectively. The predictors of positive margins were menopausal status (p<0.001), loop electrosurgical excision procedure (p<0.001), and Shimodaira-Taniguchi (S-T) conization (p<0.001). Of 1,271 patients with positive margins, 1,060 underwent no additional treatment; among those 1,060 patients, 129 (12.2%) experienced recurrence. The predictors of positive margins in patients who did not undergo additional treatment and did not experience recurrence were age, parity, gravidity, S-T conization, and laser scalpel conization.
Conclusion
Menopausal status and treatment procedures were associated with positive margins after therapeutic conization of CIN 3. It is important to understand the characteristics of treatment procedures and select an appropriate procedure for each case. For elderly or menopausal patients with positive margins, immediate additional treatment is recommended.