ABSTRACT
Gallstones obtained from patients from the north-east region of India (Assam) were studied using laser-induced breakdown spectroscopy (LIBS) technique. LIBS spectra of the different layers (in cross-section) of the gallstones were recorded in the spectral region 200-900 nm. Several elements, including calcium, magnesium, manganese, copper, silicon, phosphorus, iron, sodium and potassium, were detected in the gallstones. Lighter elements, including carbon, hydrogen, nitrogen and oxygen were also detected, which demonstrates the superiority of the LIBS technique over other existing analytical techniques. The LIBS technique was applied to investigate the evolution of C(2) swan bands and CN violet bands in the LIBS spectra of the gallstones in air and an argon atmosphere. The different layers (dark and light layers) of the gallstones were discriminated on the basis of the presence and intensities of the spectral lines for carbon, hydrogen, nitrogen, oxygen and copper. An attempt was also made to correlate the presence of major and minor elements in the gallstones with the common diet of the population of Assam.
Subject(s)
Gallstones/radiotherapy , Laser Therapy/instrumentation , Lasers , Spectrophotometry, Atomic/instrumentation , Gallstones/chemistry , Gallstones/pathology , Humans , India , Laser Therapy/methods , Spectrophotometry, Atomic/methodsABSTRACT
Donor plasma irradiated by ultraviolet rays was administered intravenously to patients with choledocholithiasis, chronic hepatitis and liver cirrhosis. Parameters of the acid-base balance of arterialized capillary blood shifted to alkalosis, were normalized, and tension of carbon dioxide and oxygen in the blood increased to physiological values. Dynamic changes of the biochemical parameters demonstrated alleviation of manifestations of the cholestasis syndrome.
Subject(s)
Acid-Base Equilibrium , Blood/radiation effects , Cholestasis/radiotherapy , Gallstones/radiotherapy , Liver Diseases/radiotherapy , Ultraviolet Therapy , Adult , Aged , Cholestasis/complications , Cholestasis/metabolism , Female , Gallstones/complications , Gallstones/metabolism , Humans , Liver Diseases/complications , Liver Diseases/metabolism , Male , Middle AgedABSTRACT
The fragmentation of biliary tract stones by the electrohydrolytic principle in vivo is presented. Included is a description of the apparatus.
