M Ohtsuka

University of Tsukuba, Tsukuba, Ibaraki, Japan

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Publications (198)458.07 Total impact

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    ABSTRACT: The purpose of this study is to examine clinical and pathological features, treatment modality approaches in the elderly, especially in patients aged 80 years and older. From the databases at two educational hospitals during the period from January 1978 and December 2007, medical records of lung cancer patients were retrospectively reviewed. The patient population was divided into three age groups: less than 70 years (the <70 age group), 70-79 years (the 70-79 age group), and 80 years or older (the > or =80 age group). Time trends were also studied in two-time intervals: first study period up to 1997, which represents past practice standards, the second study period up to 2007, which represents contemporary practice. Patients aged 80 years and older comprised 7.5% of 2775 consecutive patients with lung cancer, and there was a rapid increase in the proportion of patients aged 80 years or older from the earlier to the later time period. The > or =80 age group had higher proportion of poor performance status (PS) and comorbid disease than the <70 age group and the 70-79 age group. Unchanged proportion of patients with poor PS and advanced disease at presentation were observed in the > or =80 age group. The > or =80 age group was less likely to be subjected to surgery or chemotherapy, and had inferior outcomes when compared with the 70-79 age group and the <70 age group. Survival improvement was not observed in the > or =80 age group. Multivariate analysis showed good PS, early clinical stage and surgery were favorable prognostic factors in the > or =80 age group. In order to improve the outcome, detection of early stage lung cancer in patients with good PS and thorough pretreatment evaluation for appropriate treatment are indeed essential even for the > or =80 age group of patients.
    Preview · Article · Jul 2009 · Lung cancer (Amsterdam, Netherlands)

  • No preview · Article · May 2009 · Onkologie
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    ABSTRACT: There have been few reports on clinical characteristics of lung cancer patients with previous or simultaneous upper aerodigestive cancers. To evaluate them, we conducted a retrospective study. The medical records of all lung cancer patients at our division from January 1984 through July 2008 were reviewed. Twenty-one (1.7%) of 1242 patients had previous or simultaneous upper aerodigestive cancers. Twenty patients were smokers. For non-small cell lung cancer (NSCLC), 6 patients underwent surgical resection and 3 were treated with chemotherapy. Three small cell lung cancer (SCLC) patients had chemotherapy. None of the severe complication related to the comorbidities were observed. The median survival for NSCLC and SCLC patients was 15 and 6 months, respectively. For patients with upper aerodigestive cancers, smoking cessation, a chest radiograph or computed tomography scan at least yearly and swift evaluation of signs or symptoms that are suggestive of lung cancer should be recommended.
    No preview · Article · Feb 2009 · Tuberkuloz ve toraks
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    ABSTRACT: Paraneoplastic nephrotic syndrome has been reported in various malignancies: malignant lymphoma, colon cancer, lung cancer, and prostate cancer. Of these, lung cancer is the most commonly associated with the syndrome. Here, we report 4 cases of nephrotic syndrome associated with lung cancer, in one of which urinary protein and edema were improved by steroid therapy. These results suggest that in patients with paraneoplastic nephrotic syndrome histologically diagnosed as having minimal change disease (MCD), it is important not only to treat the cancer itself but also to use steroids as early as possible. On the other hand, our results also showed that treatment is still difficult for locally advanced or metastatic tumors. Therefore, when we encounter patients with nephrotic syndrome, it is important to be aware of the association of nephrotic syndrome and lung cancer.
    No preview · Article · Jan 2009 · Internal Medicine

  • No preview · Article · Jan 2009 · Onkologie
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    ABSTRACT: Asthma is not uncommon in old age and carries significant morbidity and mortality. This case report purports to describe the oldest asthma patient ever reported, a 96-year old male with a 46-year asthma history. We emphasize not only his age, but also the fact that he continues to have significant reversibility, at least he did at age more than 90-year old.
    No preview · Article · Dec 2008 · Australasian Journal on Ageing
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    ABSTRACT: A 66-year-old man, who was discovered to have human immunodeficiency virus (HIV) infection 22 months previously and was treated with highly active antiretroviral (HAART) therapy, developed giant cell carcinoma of the lung. In English literature, this is the first case of such cell type of lung cancer during HAART therapy. Since giant cell carcinoma of the lung occurs mainly in elderly men who smoke heavily, there may not be a possibility that the HIV or HAART was causative in our patient.
    No preview · Article · Nov 2008 · Medical Oncology
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    ABSTRACT: Squamous cell carcinoma antigen (SCC) has been found in elevated amounts in patients with squamous cell lung cancer (SQLC). Elevated levels have also been found among patients with nonsquamous cell lung cancer (NSQLC) and in subjects with nonmalignant pulmonary disease (NMPD). The purpose of the current study was to evaluate SCC levels among a large number of patients with SQLC, NSQLC, and NMPD. Six hundred thirty-nine lung cancer patients, including 201 SQLC patients and 299 patients with NMPD, who were diagnosed at our hospital up to 2006 were entered. Serum SCC levels were measured with a commercially available kit. Elevated levels (>1.5 ng/ml) of SCC were observed in 52.7% of SQLC patients, but in only 14.2% of NSQLC patients. There was a statistically significant difference in positive rate between SQLC and NSQLC patients. None of the NSQLC patients had serum SCC levels greater than 40.0 ng/ml. Among subjects with NMPD, 28.4% had elevated levels of SCC. However, none of the NMPD patients had serum SCC levels greater than 20.0 ng/ml. Serum levels of SCC can be elevated (<20.0 ng/ml) in some NMPD patients without coexisting SQLC. Patients with NSQLC and NMPD with elevated SCC levels greater than 40 ng/ml may have coexisting SQLC or squamous cell carcinoma in an extrapulmonary site.
    No preview · Article · Aug 2008 · Beiträge zur Klinik der Tuberkulose
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    ABSTRACT: There have been few reports on clinical characteristics of lung cancer patients with previous or simultaneous urologic cancers. Additionally, it was scarcely reported whether these patients could tolerate standard therapy. To evaluate them, we conducted a retrospective study. The records of patients with lung cancer who had previously or simultaneously urological cancers seen in our division between January 1985 and August 2007 were reviewed. During the study period, 1,105 patients with lung cancer were seen at our division. Thirteen (1.2%) had previous or simultaneous urological cancers (11 males). Eleven patients were smokers. The diagnosis of urological cancers preceded the diagnosis of lung cancer in all but three patients, for whom the diagnosis of urologic cancers was made during the workup of primary lung cancer. Histologically, the lung cancers included six squamous cell carcinomas, four adenocarcinomas, and three small cell lung cancers. Four underwent surgical resection. Six were treated with platinum-containing chemotherapy, but none of them developed severe renal toxicity. The median survival following the diagnosis of lung carcinoma for NSCLC patients was 18 months, and for SCLC it was 24 months. The cause of death in the 12 patients who died in the study period was directly related to lung cancer, and recurrence of urological cancers was observed in none of the patients. For patients with urological cancers, smoking cessation, a chest radiograph or CT scan at least yearly and swift evaluation of signs or symptoms that are suggestive of lung cancer should be recommended.
    No preview · Article · May 2008 · Medical Oncology

  • No preview · Article · Feb 2008 · The American journal of emergency medicine
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    ABSTRACT: A 74-year-old woman with rheumatoid arthritis was referred for a mass incidentally noted on chest radiograph. Chest CT scan showed cystic lesions in the right lower lobe. The lesion was evaluated as bronchiectasis, and she was followed up. Three years after the initial presentation, the appearance of the lesion had changed significantly and an elevated air-fluid level in the cystic structures was shown on chest CT scan. The preoperative serum progastrin-releasing peptide (proGRP) level was elevated (108.0 pg/ml; normal: <50 pg/ml). Histopathological specimen obtained by standard lower lobectomy confirmed that the lesion was an intralobar pulmonary sequestration. In the resected lobe, there was no malignant finding, but there were neuroendocrine tumorlet cells, which were positive for proGRP. One month after the resection, the serum proGRP level returned to normal. No pulmonary sequestration with high levels of proGRP has been reported, and this is the first case with elevated serum levels of proGRP.
    No preview · Article · Feb 2008 · Internal Medicine
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    ABSTRACT: Squamous cell carcinoma antigen (SCC) is still a widely used tumor marker for monitoring non-small cell lung cancer (NSCLC), although recent reports discourage its routine use because of low sensitivity. This is a study evaluating the efficacy of SCC and CYFRA21-1 in diagnosing NSCLC. A chart review was performed in a university hospital in Japan, covering a period of 10 years, up to October 2004. During the study period, 142 (35.5%) among 400 NSCLC patients diagnosed, received serum assays of both SCC and CYFRA21-1. Elevated SCC and CYFRA21-1 levels were found in 29.6% and 59.2% of patients, respectively. SCC sensitivity was only 13.0% but CYFRA21-1 sensitivity rose to 73.9% in metastatic patients. The adjunct of SCC increased the CYFRA21-1 sensitivity by 6.3% in the overall population and by only 2.2% for patients with metastases. SCC determination should be considered an inefficient method as a potential diagnosing tool for NSCLC patients, and it provides no additional value when used in combination with CYFRA21-1.
    No preview · Article · Feb 2008 · Medical Oncology

  • No preview · Article · Jan 2008 · Lung Cancer

  • No preview · Article · Jan 2008 · The Clinical Respiratory Journal
  • Ryoko Ogawa · Hiroaki Satoh · Yukio Ishii · Morio Ohtsuka
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    ABSTRACT: Thrombocytopenia is one of the most important and serious co-morbid conditions in patients with hematological malignancies as well as non-hematological solid tumors. We report herein a small cell lung cancer (SCLC) patient with idiopathic thrombocytopenic purpura (ITP) who was successfully treated with chemotherapy containing cisplatin and etoposide. It is probably safe to administer chemotherapeutic agents for some cancer patients with ITP, but prevention or minimization of toxicities of these chemotherapeutic agents is very important. Full consideration about the indication of chemotherapy and careful observation are required for such patients.
    No preview · Article · Dec 2007 · Respiratory Medicine Extra
  • Hironori Masuko · Yoichi Anami · Hiroaki Satoh · Morio Ohtsuka
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    ABSTRACT: Pulmonary lymphangioleiomyomatosis (PLAM) is a rare disease, which occurs mainly in women of reproductive age, and occasionally in postmenopausal women. We report a small pulmonary metastatic uterine body cancer in a 63-year-old female patient with PLAM. In patients with PLAM, differential diagnostic consideration is proliferation of pneumocytes and PLAM cells in addition to benign tumor as well as primary and metastatic lung cancer. We emphasize difficulties in the clinical and roentgenological diagnosis in this kind of combined pathology. Even if the association we describe is probably fortuitous, not only a primary but also a metastatic tumor is suspected when a solitary pulmonary nodule is detected in a patient that has been previously treated for carcinoma in any organs.
    No preview · Article · Dec 2007 · Respiratory Medicine Extra
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    ABSTRACT: Hypersensitivity pneumonitis (HP) is mediated by a Th1 immune response. Transcription factor GATA binding protein-3 (GATA-3) is believed to be a key regulator of Th2 differentiation and thus might play regulatory roles in the pathogenesis of hypersensitivity pneumonitis (HP). We examined the effect of GATA-3 overexpression on the development of HP in mice. Wild-type C57BL/6 mice and GATA-3-overexpressing mice of the same background were used in this study. HP was induced by repeated exposure to Saccharopolyspora rectivirgula, the causative antigen of farmer's lung. Antigen exposure resulted in a marked inflammatory response with enhanced pulmonary expression of T-bet and the Th1 cytokine interferon (IFN)-gamma in wild-type mice. The degree of pulmonary inflammation was much less severe in GATA-3-overexpressing mice. The induction of T-bet and IFN-gamma genes was suppressed, but a significant induction of Th2 cytokines, including IL-5 and IL-13, was observed in the lungs of GATA-3-overexpressing mice after antigen exposure. Supplementation with recombinant IFN-gamma enhanced lung inflammatory responses in GATA-3-overexpressing mice to the level of wild-type mice. Because antigen-induced IFN-gamma production predominantly occurred in CD4+ T cells, nude mice were transferred with CD4+ T cells from either wild-type or GATA-3-overexpressing mice and subsequently exposed to antigen. Lung inflammatory responses were significantly lower in nude mice transferred with CD4+ T cells from GATA-3-overexpressing mice than in those with wild-type CD4+ T cells, with a reduction of lung IFN-gamma level. These results indicate that overexpression of GATA-3 attenuates the development of HP by correcting the Th1-polarizing condition.
    No preview · Article · Dec 2007 · American Journal of Respiratory and Critical Care Medicine
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    ABSTRACT: Pulmonary large-cell neuroendocrine carcinoma (LCNEC) has been characterized by highly aggressive behavior, with early spread to both regional lymph nodes and distant sites and a rapidly fatal course. In fact, no reports have described an advanced pulmonary LCNEC patient who has had long-term survival. A patient with large-sized pulmonary LCNEC, who is free of disease 11 years after surgery and postoperative chemotherapy, was reported.
    Full-text · Article · Dec 2007 · Respiratory Medicine
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    ABSTRACT: Chemotherapy is considered to have a marginal impact on survival. The purpose of this study was to evaluate the rate of long-term survival in patients treated with chemotherapy for advanced non-small cell lung cancer (NSCLC). The case records of 109 patients with NSCLC treated with chemotherapy from March 1998 to March 2007 were reviewed. Fourteen (12.8%) and seven (6.4%) patients survived for more than two or three years, respectively. All of the 14 patients had performance status (PS) 0 or 1, and they were given a platinum-containing chemotherapy as initial treatment. By means of univariate analysis, good PS and gefitinib therapy were proved to be good prognostic factors. With Cox's model analysis, these two variables were confirmed as significant determinants of survival. A small but definite proportion of patients with locally-advanced and metastatic NSCLC might potentially survive for more than 2 years with appropriate chemotherapy.
    Preview · Article · Nov 2007 · Anticancer research

  • No preview · Article · Sep 2007 · Lung Cancer

Publication Stats

2k Citations
458.07 Total Impact Points


  • 1986-2009
    • University of Tsukuba
      • • Institute of Clinical Medicine
      • • Institute of Basic Medical Sciences
      Tsukuba, Ibaraki, Japan
  • 1997-2003
    • Tsukuba Medical Center Hospital
      Tsukuba, Ibaraki, Japan
  • 1995
    • Tokyo Medical and Dental University
      • Department of Internal Medicine
      Edo, Tokyo, Japan
  • 1980-1984
    • Niigata Teishin Hospital
      Niahi-niigata, Niigata, Japan