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Biomedical subjects

T Tsukioka

Publications and source records attributed to T Tsukioka.

14 recordsLinked to original sources
PubMed2001

[Surgical treatment for pulmonary arterial injury caused by sewing needles].

A 41-year-old woman was found lying in her home, which was on fire, and was brought to our hospital by ambulance. Her complaint was severe dyspnea, and a respirator was needed. Contusion and abrasion were present on her anterior chest. A roentgenogram of her chest disclosed cardiac enlargement and two linear metallic shadows. A computed tomographic scan of the chest showed cardiac tamponade and a needle from the chest wall to the main pulmonary artery. Through a median sternotomy approach, the pericardium was opened. About 200 ml of blood was pooled in the pericardium cavity, and a needle was found in the main pulmonary artery. The needle was removed and the bleeding point was closed using suturing with 5-0 prolene without cardiopulmonary bypass.

Adult↗
PubMed2000

Strategy for 3-D computed tomography diagnosis and treatment of small pulmonary arteriovenous fistula.

In a patient with left hemianopsia, computed tomography (CT) and magnetic resonance imaging revealed an intracranial space-occupying lesion in the right occipital region. A cerebral abscess was removed at craniotomy. Enhanced pulmonary CT showed a small coin lesion in the peripheral lingula. and at 3-D CT two nidi with feeding arteries and draining veins were seen, indicating pulmonary arteriovenous fistula. Lingular segmentectomy was performed.

Angiography↗
PubMed2000

Trepopnea due to recurrent lung cancer.

Trepopnea is a condition whereby breathing may be comfortable in one position but difficult or labored in another. A unique case with trepopnea due to recurrent lung cancer with right main pulmonary artery stenosis and left main bronchus obstruction is presented. The patient had developed trepopnea 3 months earlier, but developed orthopnea shortly before he was admitted to our hospital. An emergent wall stent implantation was performed via the right femoral vein in the sitting position with the patient's leg stretched out. The symptoms and respiratory function improved after stent implantation.

Bronchial Diseases↗
PubMed2000

[Clinical experience using percutaneous cardiopulmonary support system for stent replacement].

Three cases of tracheal or mein bronchus stenoses were treated using percutaneous cardiopulmonary support system (PCPS). Case 1 was a 63-year-old male admitted for dyspnea due to stenotic trachea with primary lung cancer invasion. YAG-laser operation and Dynamic stent was inserted to the trachea using PCPS. Case 2 was a 74-year-old male admitted for dyspnea due to stenotic right mein bronchus with primary lung cancer invasion. Dumon Y stent was inserted to the right mein bronchus using PCPS. Case 3 was 57-year-old male admitted for dyspnea due to stenotic trachea and occluded left mein bronchus with ischemic change after primary esophageal cancer operation. Dynamic stent was inserted to the trachea and left mein bronchus using PCPS. Tracheal and mein bronchus stenoses the trachea of all was dilated after placement of stent. These three cases had no complications during or after these treatment. These results indicated that using PCPS was a very useful, powerful and satisfactory method in the treatment of tracheal or mein bronchus stenoses during the lack of lung ventilation.

Aged↗
PubMed2000

[Difficulty in using RP, PL, and EW factors in the Japanese classification of pancreatic carcinoma].

The classification of pancreatic carcinoma by the Japan Pancreas Society reflects the prognosis of each stage better than does the TMN classification. On the other hand, there are too many factors to examine in the Japanese system, some of which are difficult to use and have low accuracy in pre- and/or intraoperative diagnosis (RP and PL), and their analysis requires various specimen handling procedures (EW). We propose that: 1) a simple, easy decision flow chart be established for ew and 2) EW/ew be designated as (-) or (+) and for EW/ew (+) cases other factors (ly, v, pl, and direct tumor invasion) be added (for example, ew (+)-pl).

Humans↗
PubMed2000

Intrapulmonary lymph nodes detected by exploratory video-assisted thoracoscopic surgery: appearance of helical computed tomography.

The objective of this study was to analyze helical computed tomography (CT) findings of intrapulmonary lymph nodes (IPLNs), and to evaluate the diagnostic procedures to prevent unnecessary exploratory surgery. Between April 1997 and March 2000, we performed exploratory video-assisted thoracoscopic surgery (E-VATS) in 42 patients and in 8 patients (4 men, 4 women; 48 to 75 years of age, mean 57 years) IPLN was pathologically proven. Retrospectively, the appearances of IPLN in helical CT images were studied in detail. The diameter of the IPLNs varied from 4 to 10mm. Six nodules were located in the lower lobes and 2 nodule was in the lingula. Chest CT showed several malignancy-suggesting associated findings with pleural indentation (2/8), spicular radiation (2/8), fuzzy margins (4/8), and vascular involvement (2/8). Black colored anthracoses in 5 subpleural IPLNs were confirmed by thoracoscopy. One patient with two coin lesions was suggestive of lung metastasis of adenoidcystic carcinoma of the tongue, but one lesion was proven as IPLN, and the other as metastatic carcinoma. In conclusion, it is not possible to distinguish an intrapulmonary lymph node from a malignant lesion using the CT findings preoperatively. Therefore, a pathological study with E-VATS is necessary and sure procedure to exclude malignant disease under the present conditions.

Aged↗
PubMed1999

A new instrument for endoscopic gluing for bronchopleural fistulae.

Fibrin glue was developed as a biologic adhesive and is frequently used in thoracic surgery, but no endoscopic instrument is available to spray fibrin glue. We developed an instrument, a new tube system, to aerosolize fibrin glue endoscopically to treat bronchopleural fistulae. This instrument was made of polypropylene, 2 mm diameter, and consisted of three microtubes, 0.3 mm diameter. Fibrinogen and thrombin glue were applied at the same time and aerosolized by burst pressure. The use of this instrument during bronchoscopy was found to increase the effectiveness of endoscopic treatment for bronchopleural fistulae.

Aerosols↗
PubMed1999

The role of codeine phosphate premedication in fibre-optic bronchoscopy under insufficient local anaesthesia and midazolam sedation.

Midazolam is widely used as a sedative agent to produce amnesia in patients undergoing fibre-optic bronchoscopy. However, if a patient does not receive sufficient local anaesthesia, continuous severe cough and physical movement may interrupt the procedure and reduce its safety. We therefore examined whether codeine phosphate is a useful premedication for bronchoscopy. The study design was a randomized comparison between codeine phosphate and a placebo in patients undergoing light local anaesthesia and midazolam sedation. We used low dose local anaesthesia (5 ml of nebulized 2% xylocaine) on the assumption of insufficient local anaesthesia. Patients were allocated to receive codeine phosphate 0.4 mg kg-1 or a saline placebo 60 min before they were sedated with i.v. midazolam. If the patients exhibited severe cough during bronchoscopy, intrabronchial supplemental local anaesthesia (2% xylocaine solution in 1 ml increments) was instilled via a bronchoscope to the trachea and segmental bronchi to suppress the cough. The dose of supplemental xylocaine was assessed and the requirements were significantly lower in the codeine group compared to the placebo group: 36.4 +/- 10.2 mg vs. 95.1 +/- 24.6 mg, respectively. After bronchoscopy, patients were interviewed by a doctor to assess their willingness to undergo a repeat procedure if one was clinically indicated, but no significant difference was observed between the two groups. If local anaesthesia is insufficient, midazolam together with codeine phosphate premedication is useful for both the patient and the bronchoscopist.

Aged↗
PubMed1990

[A role of ultrasound in radiotherapy of metastatic bone tumors].

The efficacy of ultrasonography was evaluated in radiotherapy for 32 patients with 82 metastatic bone tumor regions. Except for vertebral columns, ultrasonography was useful to detect metastatic bone tumors. Ultrasonography was applied to the radiotherapy planning in 21 regions, and was useful for the evaluation of radiotherapy effects in 22 regions. An appearance of "anechoic band" was useful for estimating tumor localization, and may be useful for the determination of the adequate dosage for palliative irradiation. Ultrasonography enable accurate localization of tumors such as sternal or costal metastases that are difficult by fluoroscopy. This means should be executed by radiotherapists.

Adenocarcinoma↗
PubMed1989

Capillary gas chromatographic-mass spectrometric determination of acid herbicides in soils and sediments.

A capillary gas chromatographic method with selected-ion monitoring (GC-SIM) was applied to eight common herbicides: 2-(4-chloro-o-tolyl-oxy)propionic acid, 3,6-dichloro-2-methoxybenzoic acid, 2-methyl-4-chlorophenoxyacetic acid, 2,3,6-trichlorobenzoic acid, 2,4-dichlorophenoxyacetic acid, 3,5,6-trichloro-2-pyridyloxy-acetic acid, 2,4,5-trichlorophenoxyacetic acid and alpha-(2-methyl-4-chlorophenoxy) butyric acid. The method involves extraction with saturated calcium hydroxide solution, esterification with pentafluorobenzyl bromide, clean-up with a silica gel column and determination by capillary GC-SIM. Recoveries from soil and sediment are over 89% (with the exception of 77% for TBA) with coefficients of variation below 5% (n = 7). The method is suitable for the simultaneous determination of the eight herbicides in environmental samples with high sensitivity and accuracy.

Gas Chromatography-Mass Spectrometry↗
PubMed1987

Capillary gas chromatographic-mass spectrometric determination of pyridine bases in environmental samples.

A method is described for the determination of pyridine bases in environmental samples such as river water and bottom sediments. After distillation from environmental samples, the pyridine bases are concentrated on a rotary evaporator, extracted with n-hexane and determined by capillary gas chromatography-selected-ion monitoring (GC-SIM). The determination of twenty pyridine bases is possible using a 15 m X 0.53 mm I.D. capillary column coated with DBWAX (equivalent to PEG 20M) followed by SIM. The detection limits were 0.01-0.1 ng and recoveries from river water and bottom sediment were over 90% with coefficients of variation below 4% (n = 7) except for pyridine. This method is capable of the simultaneous determination of twenty pyridine bases with sufficient sensitivity and accuracy to be applicable to environmental samples.

Chromatography, Gas↗