Diseases of cattle, sheep, goats Diseases of cattle, sheep, goats and swine diseasesofcattle00mous Year: 1920 390 fERICARDlTlR. In one solitary case Moussu saw another form of chronic pericarditis with complete adhesion of the heart and pericardial sac, without any exudation and almost without any false membranes. He was unable to determine the exact cause, but was strongly inclined to regard the disease as having followed pericarditis a frigore or pericarditis of a rheumatic character. Adhesions l)etween the heart and pericardial sac are also said to be the inevitable though delayed result
Diseases of cattle, sheep, goats Diseases of cattle, sheep, goats and swine diseasesofcattle00mous Year: 1920 390 fERICARDlTlR. In one solitary case Moussu saw another form of chronic pericarditis with complete adhesion of the heart and pericardial sac, without any exudation and almost without any false membranes. He was unable to determine the exact cause, but was strongly inclined to regard the disease as having followed pericarditis a frigore or pericarditis of a rheumatic character. Adhesions l)etween the heart and pericardial sac are also said to be the inevitable though delayed result of all punctures of tlie peri- cardium through the ensiform carti- lage in cases of pericarditis due to a foreign body. Symptoms. If the chronic peri- carditis is limited to a few partial adhesions, it remains unnoticed 5 but when it is more marked it offers certain signs of acute pericarditis, such as partial dulness of the car- diac area, which is more extensive than usual, disappearance of the cardiac shock, weakening of the sounds, feebleness of the pulse, very marked venous pulse, moderate stasis, extremely rapid and aggra- vated dyspnoea when the animal is forced to walk, threatened asphyxia if exercise is prolonged, and com- plete asystole. All these symptoms are due to the existence of adhesions between the heart and pericardium, which, by destroying the interpericardial space, interfere with diastole while preventing regular systole. Sudden death is a frequent consequence. The diagnosis of chronic pericarditis is very difficult. The prognosis is extremely grave, and we do not possess any means of dealing with the condition. PSEUDO-PERICARDITIS. Under this title we purpose grouping a certain number of pathological accidents due to different causes, but manifesting themselves by identical symptoms, which symptoms offer so marked a resemblance to those of pericarditis produced by foreign bodies as to suggest the presence of that Fig. 181. — Schema of a subpleural abs
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