The Canadian nurse . bouthealing through putting the part atrest and mechanically compressingdiseased tissue. Compression places thelung in a better mechanical position forhealing as well as resting the part. Thewalls of cavities are brought together sothat they can more readily be bridgedby scar tissue. Circulating toxins fromdiseased areas are greatly reduced, thetubercle bacillus receives a poorersupply of oxygen and so does notthrive. The last two factors are nolonger so important since antibioticsnow rapidly control toxemia and re-duce bacterial growth. Pneumothorax produces lung collapse
The Canadian nurse . bouthealing through putting the part atrest and mechanically compressingdiseased tissue. Compression places thelung in a better mechanical position forhealing as well as resting the part. Thewalls of cavities are brought together sothat they can more readily be bridgedby scar tissue. Circulating toxins fromdiseased areas are greatly reduced, thetubercle bacillus receives a poorersupply of oxygen and so does notthrive. The last two factors are nolonger so important since antibioticsnow rapidly control toxemia and re-duce bacterial growth. Pneumothorax produces lung collapsehy maintaining a cushion of air betweenthe \un\i and the chest wall. Once themost popular form of collapse, it liasnow l)een almost entirely dropped. In theearly days it was used even in those withextensive disease hut later was confinedmainly to the treatment of minimaltuberculosis. In its day it was a goodtreatment to which many patients owetlieir present good health. Pneumothorax APRIL. 1966 • Vol. 51. No. 4 279. I Recewing a f>fteumothonix in j at ionat the clinic occasionally had serious best the i»atient had to keep on takingrefills of air for alwut three years; somebecame ill with fluid reactions, or em-pyema, as a complication; a few. evenwith minimal disease, ended up with alung that failed to re-expand whentreatment was stopi»e<I. This latter con-dition caused permanent reduction inbreathing capacity out of all proportionto the extent of original disease and re-quired extensive surgery to correct itwith only partial relief. For the abovereasons, pneumotliorax has become al-most obsolete, its place being taken byrest and antibiotic therapy, alone or incombination with limited permanent col-lapse or limited resection. Pneumoperitoneum is a relatively re-cent treatment, being first reixirtccl in1933. Like pneumothorax, it is an airtreatment but the air is introduce<l intothe abdominal rather than the pleuralcavity. It pushes up the diaphragm
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