A method of obtaining unipolar leads in the electrocardiogram

vegetation. This ahsccss rupturetl into the pcricar&al sac. fn both cases the clinic,aI course did not suggest sepsis and tltr unexprcted caliliac perforation resultecl in 3 fatal circulatory collapse. While abscess of the m~ocardium in cases of sepsis is not an unusual occurSeven such instances, collected rence, perforation of the heart by abscess is rare. from the literature, are cited. Is jullgetl from the nim cases now availablr, myoc,ardial abscesses m’r silent until their rupture causes surldcn low thoracic pain, followed hy circulatory collapse. In two of the nine ca~cs a diastolic murmur was yewlt. hr:~rraoIL

Narat, J. K.:

A New Electrical

Stethoscope.

Ztschr.

f. Kreislaufforsch.

29:

313,

1937. A contact Rochelle crystal microphone was used with a button attache(l to be plarrd against the chest. The current is amplifieit by a a-stage radio amplifier and through Records were maile on film. a tone filter. This method is also used for pulse recor&. L. N. K.

Molz,

B.:

Ztschr. Previous theoretical neck in a mesh. The no change

A Method

of Obtaining

f. Kreislaufforsch.

29:

?Al,

Unipolar

Leads

in the Electrocardiogram.

1X7.

methocls of obtxining unipolar rlectrocxrllio#r;~nls .I new method is drscribed. A prrson is objections. wooden bath containing warm conducting solution and wire mesh gives the potential of thr entire body and this during the heart beat. This mesh is use~l as the indifferent

are not free of placed up to his an extensive wirr shows practically electrode. L. X. K.