PMID- 2463525
OWN - NLM
STAT- MEDLINE
DCOM- 19890223
LR  - 20190726
IS  - 0147-8389 (Print)
IS  - 0147-8389 (Linking)
VI  - 11
IP  - 11 Pt 2
DP  - 1988 Nov
TI  - Atrioventricular conduction in sick sinus syndrome.
PG  - 1636-40
AB  - With the increasing recognition of the pacemaker syndrome and with the 
      availability of newer methods of pacing therapy, the status of the 
      atrioventricular (AV) conduction in patients with Sick Sinus Syndrome (SSS) 
      becomes crucial in the choice of mode of pacing. At the Philippine Heart Center, 
      from April 1983 to November 1986, the sinus and AV node function studies of 46 
      patients who, by electrophysiological studies had sinus node dysfunction (SND)-SN 
      recovery time (SNRT) greater than 1400 msec, were reviewed. These were 
      arbitrarily classified according to duration of SNRT into: Group A--borderline 
      SND, SNRT from 1,401 to 1,499 msec (n = 4); Group B--mild SND, SNRT from 1,500 to 
      2,499 msec (n = 25); Group C--moderate SND, SNRT from 2,500 to 3499 msec (n = 6); 
      Group D--severe SND, SNRT of 3,500 m and above (n = 11). Out of the 46, 14 (30%) 
      had concomittant AVN dysfunction (AVND)--antegrade block rate less than 130 beats 
      per minute (BPM). The percentage occurrence of AVND was noted as follows: Group 
      A--25% (1/4); Group B--28% (7/25); Group C--50% (3/6); Group D--27% (3/11). Out 
      of the 14 patients with concomittant AVND, 5(35%) had antegrade block rate less 
      than 100 BPM, 3 in Group B and 2 in Group D. The study shows that AVND occurs in 
      only 30% of SSS patients. Its occurrence and severity has no bearing on the 
      degree of SND. In these, antegrade block was at a rate higher than 100 BPM in the 
      majority of patients.(ABSTRACT TRUNCATED AT 250 WORDS)
FAU - Carisma, M B
AU  - Carisma MB
AD  - Department of Adult Cardiology, Philippine Heart Center, Quezon City.
FAU - Manalo, J M
AU  - Manalo JM
FAU - Chua, W T
AU  - Chua WT
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Pacing Clin Electrophysiol
JT  - Pacing and clinical electrophysiology : PACE
JID - 7803944
SB  - IM
MH  - Adult
MH  - Aged
MH  - Atrioventricular Node/*physiopathology
MH  - *Cardiac Pacing, Artificial
MH  - Electrocardiography
MH  - Female
MH  - Heart Conduction System/*physiopathology
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Sick Sinus Syndrome/*physiopathology/therapy
EDAT- 1988/11/01 00:00
MHDA- 1988/11/01 00:01
CRDT- 1988/11/01 00:00
PHST- 1988/11/01 00:00 [pubmed]
PHST- 1988/11/01 00:01 [medline]
PHST- 1988/11/01 00:00 [entrez]
AID - 10.1111/j.1540-8159.1988.tb06287.x [doi]
PST - ppublish
SO  - Pacing Clin Electrophysiol. 1988 Nov;11(11 Pt 2):1636-40. doi: 
      10.1111/j.1540-8159.1988.tb06287.x.