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Biomedical subjects

W G TRAPP

Publications and source records attributed to W G TRAPP.

11 recordsLinked to original sources
PubMed1964

INDICATIONS FOR TREATMENT OF COMPLETE ATRIOVENTRICULAR DISSOCIATION.

FOR PURPOSES OF CORRECT TREATMENT IT IS IMPORTANT TO RECOGNIZE THAT PATIENTS WITH COMPLETE ATRIOVENTRICULAR DISSOCIATION FALL INTO THREE GROUPS: Group I-established third-degree heart block with and without Stokes-Adams attacks; Group II-periodic third-degree heart block with and without Stokes-Adams attacks; Group III-established third-degree heart block with cardiac failure. Most patients in Group I present no technical problems when a pacemaker is implanted. In Group II it is advisable to insert a temporary intracardiac catheter electrode and maintain a rate of 60 to 64 during the periods of third-degree heart block. Sudden reversion, in this group, from sinus rhythm can be fatal. Group III patients will often require a pacemaker set in excess of 74 beats until they are free of cardiac failure. Fifteen of 20 patients with complete atrioventricular dissociation showed marked functional improvement after insertion of a pacemaker. The development, in our laboratory, of a 4'' portable pacemaker impulse detector has been invaluable in locating the cause of failure in an implanted pacemaker.

Adams-Stokes Syndrome↗
PubMed1963

SUCCESSFUL USE OF THE DC EXTERNAL DEFIBRILLATOR AFTER FAILURE OF AN AC EXTERNAL DEFIBRILLATOR.

The opportunity for a clinical comparison of the effectiveness of AC and DC types of external defibrillators in the same patient rarely presents. A postoperative patient developed ventricular fibrillation and was successfully resuscitated by means of closed chest cardiac massage and positive pressure ventilation. Three shocks using an AC external defibrillator did not interrupt the arrhythmia, whereas one shock (150 Wsec.) delivered from a DC external defibrillator resulted in immediate interruption of the ventricular fibrillation. This case lends support to the clinical impression gained in the Vancouver General Hospital that the DC external defibrillator is superior to the AC defibrillator.

Defibrillators↗
PubMed1963

The therapeutic use of high-pressure oxygen.

The therapeutic use of a high-pressure oxygen atmosphere is of current research interest. Accounts of this means of treatment have come mainly from Amsterdam and Glasgow, but also from the United States. Reports indicate its value in treatment of coronary artery disease, severe shock, cerebral vascular accidents, gangrene, infections, carbon monoxide poisoning and bowel infarction. Hyaline membrane disease responds dramatically. The treatment has demonstrated value in conjunction with the operation of heart-lung machines, for patients with severe injuries of the extremities where blood supply is impaired, and in the treatment of rest pain in ischemic limbs. Converted hospital autoclaves have been used as an inexpensive means of initiating research projects in this field. One American supplier already has orders for construction of eight high-pressure oxygen treatment tanks in U.S. centres.

Carbon Monoxide Poisoning↗