. The principles and practice of modern surgery. impulses. Then the instrument should be withdraw^n. When the irri-tation has subsided, the fragments must be seized and comminuted withthe same instrument, or with a smaller one, or with one that has not theaperture in the anterior blade. Sometimes they may be removed withsundry scoops. But whether this can be done at one sitting or at many,must depend on the size of the stone, and the degree of inconveniencesuffered by the patient. No fair numerical estimate can yet be made of the proportion of casesin which lithotrity has been successful or ot


. The principles and practice of modern surgery. impulses. Then the instrument should be withdraw^n. When the irri-tation has subsided, the fragments must be seized and comminuted withthe same instrument, or with a smaller one, or with one that has not theaperture in the anterior blade. Sometimes they may be removed withsundry scoops. But whether this can be done at one sitting or at many,must depend on the size of the stone, and the degree of inconveniencesuffered by the patient. No fair numerical estimate can yet be made of the proportion of casesin which lithotrity has been successful or otherwise. In its presentimproved form, and practised on patients calculated for it, it may beconsidered easy, safe and effectual. But practised on cases not adaptedto it, no operation can be compared to it for the misery and fatality ofits results. We may gather from Dr. Willis, who has been at muchpains to collect what M. Souberbielle calls the martyrology of lithotrity,that the mortality has been in all probability at least one in four. Wherea


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Keywords: ., bookcentury1800, booksubjectgeneralsurgery, booksubjectsurgery