438 Intestinal Invagination. 



in cattle in two cases; he siicceedeil once in correctinfj a ilisjilacenient. Jiihnk suc- 

 ceeded in this manner to correct invagination and torsion which were present simul- 

 taneously. 



Since reposition of twisted divisions of the colon might he 

 brought about spontaneously by rolling, moderate rolling of the 

 patients may be permitted, but in torsion or volvulus of the 

 small intestine or of the colon this would only cause displace- 

 ment of the remainder of the intestine. In these cases, and in 

 torsion or volvulus in general, the pain should be relieved by 

 narcotics (morphine, chloral h^'drate). Intestinal puncture 

 (see page 363) is indicated, without any reference to further 

 treatment, whenever there is intense bloating; some cases of in- 

 testinal flexure (see page 429) or of other displacements of the 

 large intestine may occasionally assume their normal posture 

 after the escape of gases. The use of laxatives is contraindi- 

 cated. The favorable results claimed by Oeller and Older can 

 not be judged objectively on account of the insufficient clinical 

 diagnosis in these cases. 



Literature. Audebert, J. vet., 1890, 88.— Behrens, Monh., 1908, XX. 57.— 

 Diem, W. f. Tk., 1908, 297.— Forssell, Z. f. Tm., 1907, XI, 401; D. t. W., 1908, 52. 

 — Glage, Z. f. Flhyg., 1900, XI, 10.— Hess, Schw., A., 1890, XXXII, 213.— Hum- 

 merich, Z. f. Vk., 1908, 444.— Jelkmaun, B. t. W., 1890, 33.— Johne, S. B., 1899, 221. 

 — Johnk, B. t. W., 1907, 951.— Keutzer, Pr. Mil. Vb., Lienaux, Ann., 1897, 664.— 

 Malkmus, Monh., 1892, III, 7.— Marek, Z. f. Tm., 1905, IX, 50, 53.— Mayer, Eep., 

 1889, 125.— Meschkow, Petersb. Journ., 1895, 540.— Moller, Monh., 1892, 111, 1.— 

 Ohler, W. f. Tk., 1906, 521.— Ohler, W. f. Tk., 1904, 694.— Oppenheim, B. t. W., 

 1900, 617.— V. Ow, B. Mt., 1886, 92.— Plosz & Marek, Z. f. Tm., 1905, XI, 50, 52. 

 —Probst, W. f. Tk., 1906, 81.— Reichert, Eep., 1888, 269.— Rossbach, B. t. W., 1907, 

 327.— Rnlf, A. L., 1904, 106.— Siedamgrotzky, S. B., 1876, 29.— Sigl, W. f. Tk., 

 1902, 581; 1907, 41.— Straube, Z. f. Vk., 1907, 475.— Wall, Die Kolik d. Pferdes, 

 1908. 



26. Intestinal Invagination. Intussusception. Invaginatio 



intestini. 



By intussusception one understands a stenosis or occlusion 

 of the intestinal lumen which occurs suddenly and is caused by 

 the invagination of one section of intestine into a neighboring 

 part, followed by a venous congestion in the invaginated portion. 



Occurrence. Invagination is found most frequently (but 

 even then as a rare occurrence) in cattle and somewhat more 

 rarely in dogs, very rarely in the horse and in the hog. Some- 

 times it occurs in fowl (Kitt, Johne, Klee). 



In the Prussian army during 1892-1908, invagination was seen in ninety-nine 

 cases among 71,532 cases of colic (0.14%) ; in the Berlin Clinic, 1897-1907, there 

 were nine cases of invagination among 8,686 cases of colic (0.1%); in the Dresden 

 Clinic in 3,336 cases of colic, five (0.15%); and in the Bu<lapest Clinic invagination 

 was represented with 0.1%. 



Etiology. If for some reason or other a piece of intestine 

 contracts more strongly and remains in this condition for some 



