Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Ole‐Jörgen Ohm"'
Autor:
Kjell Breivik, Ole‐Jörgen Ohm
Publikováno v:
Acta Medica Scandinavica. 203:521-528
One-hundred and eighty-one patients with chronic and with intermittent high-grade atrioventricular block (AVB) were studied retrospectively. Seventy-one were treated with fixed-rate, 51 with demand-type pacemaker, 59 were treated conservatively. Obse
Autor:
Ole‐Jörgen Ohm
Publikováno v:
Pacing and Clinical Electrophysiology. 3:318-331
There is stiil no standardized test procedure established for demand pacemakers, Much work has been done to reduce demand failures, but more knowledge is needed to arrive at better results. This study was initiated by in vivo observations of pacemake
Publikováno v:
Acta Endocrinologica. 112:442-446
The plasma concentrations of oestrone (Oe1), oestradiol (Oe2) and oestrone sulphate (Oe1S) were measured in the femoral artery (FA), femoral vein (FV) and hepatic vein (HV) in seven men and three postmenopausal women undergoing catheterization for th
Publikováno v:
Medical & Biological Engineering & Computing. 18:223-233
The signal source impedance Z of implanted pacemaker electrodes plays an important role for adequate sensing of electrogram signals and has so far been little explored. A frequency-domain method for thein vivo calculation of Z is described. Electrogr
Autor:
Ole‐Jörgen Ohm
Publikováno v:
Pacing and Clinical Electrophysiology. 3:44-55
Demand failures during permanent cardiac pacing were studied in four patients with coronary heart disease and cardiomyopathies, by means of in vivo and in vitro analyses of the pacemaker system. A common feature of the electrogram analyses (except du
Autor:
Ole‐Jörgen Ohm
Publikováno v:
Pacing and Clinical Electrophysiology. 2:465-485
Electrogram maximum derivatives (DMAX, SMAX) and electrogram amplitudes (AMAX, UMAX) (Figure 2), were studied in 71 cases during permanent pacemaker treatment. During the acute phase, (at first implantation), 29 patients were studied, and during the
Autor:
Erling Skagseth, Ole‐Jörgen Ohm
Publikováno v:
Pacing and clinical electrophysiology : PACE. 3(2)
Thirty-three patients undergoing cardiac surgery in general hypothermia were investigated during temporary pacemaker treatment for changes in right ventricular electrogram amplitudes (AMAX, UMAX) and maximum derivatives (DMAX, SMAX) from pre-to posto
Publikováno v:
Pacing and clinical electrophysiology : PACE. 5(3)
From a total of 51 patients equipped with rate and pulse width adjustable pulse gen erators (Microlith-P 0505, Microthin-PI 0522) implanted over the last 3 years, 10 (19.6%) showed an un expected drop in pacemaker pulse rate during pulse width progra