Although Aretæus treats of syncope as a separate disease, he holds that it derives its origin from causus, or ardent fever. He pronounces it to be a loosening of the vital cords, and that its seat is the heart; hence his chapter on the treatment is entitled, on the cure of _cardiacs_. The symptoms, he holds, mark an affection of the heart, namely, small and weak pulse, great palpitation, throbbing of the heart, fainting, unrestrainable sweats, &c. His treatment is little different from that of Alexander in syncoptic fever. Thus he begins with venesection, unless otherwise contra-indicated, justifying this practice by the pithy remark that the powers of the system may be reduced by suffocation as well as by want. He recommends, however, that blood should be taken in moderation, and that some wine should be given immediately afterwards, unless inflammation be present. Wine, he remarks, in inflammations, adds to the disease, but, in ordinary cases, to the strength. When general bleeding cannot be borne, he advises cupping in a guarded manner. He approves of bathing the head with cooling things, of cool air, and of all things that are grateful to the senses. When the system is quite sunk, and the extremities cold, he recommends wine guardedly with light soups. The wine, he says, should be fragrant and not very astringent, but should be given with moderation, unless the sweats are very profuse and the skin cold, when he advises wine to be given to any extent, wine in such cases being the last hope of life. He directs further that the patient should be kept up with encouraging words, and the application of fragrant and astringent things, such as alum, rose-water, and the like. He is to be exposed to fragrant and cool air, and, if the sweats persist, obstruent substances, such as Samian earth, &c., are to be added to the applications, and a sponge soaked in cold water is to be applied to the face. Stimulants and rubefacients are to be applied to the extremities. He concludes with remarking that convalescence is often prevented by latent inflammations, which end in marasmus, in which cases the physician must endeavour by gestation, friction, baths, and the administration either of a woman’s milk or that of an ass to support the strength. (De Cur. Acut. ii, 3.) Aëtius also has a separate chapter on _cardiacs_, although he holds syncope to be symptomatic of acute fever. We need not enter upon an exposition of his views further than to mention that he is of opinion that the part originally affected is the cardiac orifice of the stomach. (ix, 1.)