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Dive into the research topics where Hiroshi Harasawa is active.

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Featured researches published by Hiroshi Harasawa.


Respirology | 2000

Intravascular ultrasound imaging of the pulmonary arteries in primary pulmonary hypertension

Takaaki Nakamoto; Junro Yoshitake; Tatsuya Hase; Hiroshi Harasawa; Shingo Okamoto; Daisuke Fuse; Ryuichi Kawasaki; Hideyo Kuga; Izumi Kishiro; Suguru Machida; Hiroaki Oshiro; Masayuki Totsuka; Noboru Kaneko

Intravascular ultrasound has the unique ability to provide cross‐sectional images of the arterial wall. This study examined intravascular ultrasound (IVUS) images of the proximal pulmonary arteries in primary pulmonary hypertension (PPH).


Geriatrics & Gerontology International | 2002

Clinical evaluation of long-term use of a portable oxygen concentrator capable of operating under car battery power

Daisuke Fuse; Takaaki Nakamoto; Hiroshi Harasawa; Suguru Machida; Hirohisa Amano; Takeshi Yoshida; Toshiya Mathuda; Takahide Nakajima; Hideyo Kuga; Hidehiko Suzuki; Hirobumi Akiba; Noboru Kaneko

An oxygen concentrator that can be powered by a car battery was clinically evaluated. The oxygen concentrator was used on a 67‐year‐old man with sequelae of pulmonary tuberculosis who was receiving long‐term home oxygen therapy (HOT) after long‐term use of 4.7 years. His work required automobile trips over long distances. The equipment used was an adsorption‐type oxygen concentrator capable of operating on a DC 12 V power supply, which could be powered from a residential power outlet (AC 100 V) using a dedicated voltage converter. Using this equipment, he was capable of driving himself in comfort for 2 hours or longer, over a period of 4 years. Furthermore, it was possible to stay in a hotel during a trip, inhaling oxygen generated by the equipment. Hereafter, this equipment should enable or facilitate long‐distance driving, travel and lodging for HOT patients.


Annals of Noninvasive Electrocardiology | 1997

Development of a New Device for Diagnosis of Hypoxemia and Arrhythmia by SaO2 ECG Holter Monitoring

Takaaki Nakamoto; Shigeru Momoki; Hiroshi Harasawa; Noboru Ohnuma; Shiro Kato; Tatsuya Hase; Hideyo Kuga; Izumi Kishiro; Kunihiko Ohno; Hidehiko Suzuki; Kouki Tokoyama; Shingo Okamoto; Keiji Takasaki; Koh-ichi Saitoh; Kazuki Tamamura; Tetsuro Abe; Masahiko Iizuka

Background: We have developed a system to monitor, simultaneously and continuously, ambulatory SaO2 measured using a pulse‐oximeter and ECG data for 24 hours.


European Journal of Pharmacology | 2005

Effects of olmesartan medoxomil as an angiotensin II-receptor blocker in chronic hypoxic rats

Takaaki Nakamoto; Hiroshi Harasawa; Kazumi Akimoto; Hisato Hirata; Hiromichi Kaneko; Noboru Kaneko; Kenji Sorimachi


International Journal of Molecular Medicine | 2002

Detection of circulating prostate tumor cells: alternative spliced variant of PSM induced false-positive result.

Hisashi Hisatomi; Kumi Nagao; Mutsuji Kawakita; Tadashi Matsuda; Hiroyuki Hirata; Shigeki Yamamoto; Takaaki Nakamoto; Hiroshi Harasawa; Noboru Kaneko; Kazumasa Hikiji; Yutaka Tsukada


Oncology Reports | 2003

Genetic detection for hematogenous micrometastasis in patients with various types of malignant tumors using Uroplakin II derived primers in polymerase chain reaction

Hiroyuki Hirata; Hisashi Hisatomi; Mutsushi Kawakita; Kumi Nagao; Shigeki Yamamoto; Kazumasa Hikiji; Takaaki Nakamoto; Hiroshi Harasawa; Noboru Kaneko; Tadashi Matsuda; Masahiro Yamamoto; Taichi Kanamaru


The Japanese journal of thoracic diseases | 1997

Long-term Effects of a Selective .ALPHA.1-adrenergic Inhibitor on Right and Left Ventricular Masses in Patients with Chronic Pulmonary Disease.

Takaaki Nakamoto; Hiroshi Harasawa; Shigeru Momoki; Hidehiko Suzuki; Yasuhito Hone; Noboru Ohnuma; Kunihiko Ohno; Shiro Kato; Masaaki Okuda; Masahiko Iizuka


Japanese Circulation Journal-english Edition | 2005

Long-Term Effects of Candesartan Cilexetil on Pulmonary Function, Right Ventricular Remodeling and Neurohumoral Factors in Patients with Hypoxemic Cor Pulmonale(Pulmonary Circulation 1 (H), The 69th Annual Scientific Meeting of the Japanese Circulation Society)

Takaaki Nakamoto; Hiroshi Harasawa; Hirohisa Amano; Hisashi Hasumi; Chizuru Satoh; Toshiya Matsuda; Kazuhiko Oda; Daisuke Fuse; Shigeru Toyoda; Noboru Kaneko


Japanese Circulation Journal-english Edition | 2004

PJ-511 Effects of Oxygen Inhalation on Sleep Apnea and Nocturnal CO_2 Exhalation Volume in Patients with Chronic Heart Failure(Heart Failure, Clinical 14 (M) : PJ86)(Poster Session (Japanese))

Takuo Arikawa; Takaaki Nakamoto; Hiroshi Harasawa; Ryuichi Kawasaki; Hidehiko Araki; Hidehiko Suzuki; Isao Taguchi; Yasuto Horie; Toshiyasu Hoshi; Akitsugu Ohida; Hiroyuki Sugimura; Noboru Kaneko


Dokkyo journal of medical sciences | 2004

Hemodynamic Effects of Positive end-expiratory Pressure on Right Ventricular Diastolic Function in Patients with Acute Myocardial Infarction

Hideyo Kuga; Takaaki Nakamoto; Hiroshi Harasawa; Isao Taguchi; Daisuke Fuse; Shichiro Abe; Hidehiko Susuki; Toshiyasu Hoshi; Yasuto Horie; Hiroyuki Sugimura; Hiroshi Amano; Noboru Kaneko

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