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  1. No Access

    Article

    Thyrotropin-secreting pituitary adenomas induce left atrial enlargement with subclinical atrial fibrillation: an echocardiographic study

    Thyrotropin-secreting pituitary adenoma (TSHoma) is rare but occasionally causes cardiovascular complications such as atrial fibrillation (AF) due to hyperthyroidism. Graves' disease (GD) is a common hyperthyr...

    Kenji Yoshiki, Yasuo Sasagawa, Masaya Shimojima, Yumie Takeshita, Sho Takata… in Pituitary (2021)

  2. No Access

    Article

    Radiological and endocrinological evaluations with grading of hypothalamic perifocal edema caused by craniopharyngiomas

    Hypophysial and hypothalamic dysfunction caused by craniopharyngioma is a serious problem despite the progress of surgical approaches and techniques. Perifocal edema induced by craniopharyngioma could be specu...

    Yasuhiko Hayashi, Yasuo Sasagawa, Masahiro Oishi, Kouichi Misaki… in Pituitary (2019)

  3. No Access

    Article

    Contribution of sellar dura integrity to symptom manifestation in pituitary adenomas with intratumoral hemorrhage

    Although hemorrhage within pituitary adenomas frequently exacerbates the symptoms, there are many grades of severity. Moreover, the contributing factors for symptom severity are still controversial.

    Yasuhiko Hayashi, Yasuo Sasagawa, Daisuke Kita, Issei Fukui, Masahiro Oishi… in Pituitary (2017)

  4. No Access

    Article

    Clinical characteristics of acromegalic patients with empty sella and their outcomes following transsphenoidal surgery

    To analyze the clinical characteristics of acromegalic patients with empty sella (ES, herniation of the subarachnoid space within the sella turcica) and the impact of ES on transsphenoidal surgery in such pati...

    Yasuo Sasagawa, Yasuhiko Hayashi, Osamu Tachibana, Masahiro Oishi, Issei Fukui… in Pituitary (2017)

  5. No Access

    Article

    Prediction of postoperative diabetes insipidus using morphological hyperintensity patterns in the pituitary stalk on magnetic resonance imaging after transsphenoidal surgery for sellar tumors

    Diabetes insipidus (DI) remains a complication of transsphenoidal surgery (TSS) for sellar and parasellar tumors. Antidiuretic hormone (ADH) appears as hyper intensity (HI) in the pituitary stalk and the poste...

    Yasuhiko Hayashi, Daisuke Kita, Takuya Watanabe, Issei Fukui, Yasuo Sasagawa… in Pituitary (2016)

  6. No Access

    Article

    Carotid artery protrusion and dehiscence in patients with acromegaly

    Acromegaly is a systemic disease which causes multiple bony alterations. Some authors reported that acromegalic patients have risk factors for an intraoperative vascular injury due to the specific anatomical f...

    Yasuo Sasagawa, Osamu Tachibana, Mariko Doai, Yasuhiko Hayashi, Hisao Tonami… in Pituitary (2016)

  7. No Access

    Article

    Median nerve conduction studies and wrist magnetic resonance imaging in acromegalic patients with carpal tunnel syndrome

    Carpal tunnel syndrome (CTS) often occurs with acromegaly; however, the pathophysiology of CTS in acromegalic patients remains unclear. This study evaluated the median nerve in acromegalic patients with and w...

    Yasuo Sasagawa, Osamu Tachibana, Mariko Doai, Hisao Tonami, Hideaki Iizuka in Pituitary (2015)

  8. No Access

    Article

    Internal carotid arterial shift after transsphenoidal surgery in pituitary adenomas with cavernous sinus invasion

    The intercarotid distance (ICD) between cavernous carotid arteries (CCAs) is an important factor for avoiding injury of the internal carotid artery during transsphenoidal surgery. The ICD between CCAs in pitui...

    Yasuo Sasagawa, Osamu Tachibana, Mariko Doai, Takuya Akai, Hisao Tonami… in Pituitary (2013)