PMID- 7694250 OWN - NLM STAT- MEDLINE DCOM- 19931216 LR - 20190726 IS - 0147-8389 (Print) IS - 0147-8389 (Linking) VI - 16 IP - 10 DP - 1993 Oct TI - Improvement of cardiac function in patients with severe congestive heart failure and coronary artery disease by dual chamber pacing with shortened AV delay. PG - 2034-43 AB - Medical therapy often fails to control symptoms of severe heart failure. The possibility of modifying to some degree the global ventricular performance with the implantation of a physiological dual chamber pacemaker, set with a short atrioventricular delay (100 msec), has been adopted in two patients with severe heart failure due to coronary artery disease. The baseline clinical condition of both patients was characterized by leg edema, ascites, dyspnea at rest, or even orthopnea with a functional New York Heart Association (NYHA) class III-IV. Acute measurements of hemodynamic and echocardiographic parameters during stepwise shortening of AV interval guided the pacemaker implantation and setting of AV delay in the chronic phase. Within a few days after pacemaker implantation, both patients considerably improved their clinical status as well as their functional NYHA class, improving to class II in one patient and to class II-III in the other patient. In addition, modification of systolic and diastolic parameters paralleled these improvements functional class and clinical condition. Pacemaker therapy in severe heart failure refractory to medical therapy can be of considerable benefit in patients whose quality-of-life is severely compromised when pharmacological therapy is no longer effective. Acute hemodynamic and echocardiographic testing is useful in assessing the most appropriate AV delay and pacing mode. FAU - Auricchio, A AU - Auricchio A AD - Department of Cardiac Surgery, Universita di Roma Tor Vergata, European Hospital, Italy. FAU - Sommariva, L AU - Sommariva L FAU - Salo, R W AU - Salo RW FAU - Scafuri, A AU - Scafuri A FAU - Chiariello, L AU - Chiariello L LA - eng PT - Case Reports PT - Journal Article PL - United States TA - Pacing Clin Electrophysiol JT - Pacing and clinical electrophysiology : PACE JID - 7803944 SB - IM CIN - Pacing Clin Electrophysiol. 1994 May;17(5 Pt 1):995-7. PMID: 7517539 MH - Aged MH - Cardiac Pacing, Artificial/*methods MH - Coronary Disease/complications/physiopathology/*therapy MH - Echocardiography MH - Heart Failure/complications/physiopathology/*therapy MH - Hemodynamics/physiology MH - Humans MH - Male MH - Middle Aged MH - *Pacemaker, Artificial EDAT- 1993/10/01 00:00 MHDA- 1993/10/01 00:01 CRDT- 1993/10/01 00:00 PHST- 1993/10/01 00:00 [pubmed] PHST- 1993/10/01 00:01 [medline] PHST- 1993/10/01 00:00 [entrez] AID - 10.1111/j.1540-8159.1993.tb00997.x [doi] PST - ppublish SO - Pacing Clin Electrophysiol. 1993 Oct;16(10):2034-43. doi: 10.1111/j.1540-8159.1993.tb00997.x.