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The purpose of this study is to assess the diagnostic yield and show the feasibility and safety of endobronchial biopsies using the flexible cryoprob and to assess the sensitivity of cryobiopsy compared with forceps biopsy
Flexible bronchoscopy is the diagnostic tool of choice to diagnose endobronchial malignancies. It allows inspection and biopsy of any endobronchial abnormalities under direct vision.
One of the main goals of diagnostic bronchoscopy, besides visualization of endobronchial abnormalities, is obtaining an adequate tissue samples from the suspicious lesions for cytohistological examination. Several techniques could be applied through the working channel of the ﬂexible bronchoscopy such as forceps biopsy, brush, bronchial washing and transbronchial needle aspiration.Flexible bronchoscopy and the associated tissue sampling techniques are the most widespread procedures in the diagnosis of central lung cancer. Even though the specimens are obtained under direct vision, there is a significant failure rate, which therefore, requires repeated bronchoscopies. Concurrent application of different sampling techniques at bronchoscopy has been shown to improve the yield.
Diagnostic bronchoscopy with endobronchial forceps biopsy is primarily practiced in patients with suspected thoracic malignancy and visible endobronchial.
The major drawback of the forceps biopsy technique is the relatively small amount of tissue obtained, which is determined by the size of the forceps. Additionally, mechanical compression or crush artefacts from the instrument tip cause alterations of the tissue samples, which affect the quality of the histological analysis. Flexible cryoprobes were introduced as a new tool for bronchoscopic tissue sampling. It is used primarily for debulking and cryoextraction of malignant airway stenosis.
With this technique, the sample is collected while still being frozen with the tissue attached on the frozen tip of the probe. By this way, larger tissue samples can be taken from endobronchial lesions and artifact free. The molecular markers are also ions. Tissue samples obtained with cryoprobes are of good quality, size better preserved and well represented.
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Published on BioPortfolio: 2020-01-18T10:35:48-0500
to evaluate the difference between the tracheal intubation (TI) and rigid bronchoscopy (RB) under general anesthesia on patients with transbronchial cryobiopsy.
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White or pink lesions on the arms, hands, face, or scalp that arise from sun-induced DNA DAMAGE to KERATINOCYTES in exposed areas. They are considered precursor lesions to superficial SQUAMOUS CELL CARCINOMA.
Thickening and loss of elasticity of the walls of ARTERIES of all sizes. There are many forms classified by the types of lesions and arteries involved, such as ATHEROSCLEROSIS with fatty lesions in the ARTERIAL INTIMA of medium and large muscular arteries.
A mild exanthematous inflammation of unknown etiology. It is characterized by the presence of salmon-colored maculopapular lesions. The most striking feature is the arrangement of the lesions such that the long axis is parallel to the lines of cleavage. The eruptions are usually generalized, affecting chiefly the trunk, and the course is often self-limiting.
A cytological test finding often from PAP SMEARS that shows abnormal lesions of SQUAMOUS EPITHELIAL CELLS of the CERVIX. It is a diagnostic criterion used in the Bethesda System for UTERINE CERVICAL NEOPLASMS and represents the PAP TEST result that is abnormal. Although squamous intraepithelial lesions test result does not mean UTERINE CERVICAL NEOPLASMS it requires follow-ups (e.g., HPV DNA TESTS; and COLPOSCOPY).
A recurrent disease of the oral mucosa of unknown etiology. It is characterized by small white ulcerative lesions, single or multiple, round or oval. Two to eight crops of lesions occur per year, lasting for 7 to 14 days and then heal without scarring. (From Jablonski's Dictionary of Dentistry, 1992, p742)
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