Κατεύθυνση Περιβάλλον και Υγεία: Διαχείριση Περιβαλλοντικών Θεμάτων με Επιπτώσεις στην ΥγείαLibrary of the School of Health Sciences
Νικόλαος Καβαντζάς, Καθηγητής, Ιατρική Σχολή, ΕΚΠΑ, Επιβλέπων
Ανδρέας Χ. Λάζαρης, Καθηγητής, Ιατρική Σχολή, ΕΚΠΑ
Αναστασία Κωνσταντινίδου, Καθηγήτρια, Ιατρική Σχολή, ΕΚΠΑ
Αμίαντος και καρκίνος του πνεύμονα
Amiantos and lung cancer
The present work is intended to show how dangerous the exposure to asbestos is.
Workers in companies with asbestos-containing products and residents in areas where asbestos is being treated and used may present health problems.
Asbestos fibers present in the air and can enter the body through the digestive and respiratory system. In prolonged exposure and very aggravated environment, in specific cases the penetration of asbestos fibers may lead to local deposition under the skin.
The respiratory tract has a defense mechanism and can thus dispose of most of the largest inhalable fibers. It is redirecting fibers with a diameter of more than 3 m and discards the fibers taken with food and water. Asbestos fibers with a diameter of less than 3 m and a length of more than 5 m can enter the lungs and end up in the pulmonary alveoli. When penetrated into the alveoli, they are almost impossible to dispose of and cannot metabolise, resulting in sedimentation leading to a permanent inflammatory agent.
The role of asbestos fiber in penetration in the lungs plays a role. Doubling fibers (viscous and crocidolite) are considered more dangerous than chrysotile because they have greater penetration. With the current data there are three basic principles related to diseases caused by asbestos: a) by inhalation of fibers for a certain period of time; b) from the time of exposure to a burdened asbestos fiber environment until the disease manifests, mediates a a period of 20-40 years, called 'latency' and (c) all asbestos-related diseases are as serious as it is, and therefore prevention is very important during the exposure so as to prevent possible manifestations of these diseases such as: asbestosis, lung cancer, mesothelioma and others.
Main subject category:
Respiratory anatomy, Pleura, Amiantos, Mesothelioma, Lung cancer