PMID- 38487120
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240316
IS  - 2168-8184 (Print)
IS  - 2168-8184 (Electronic)
IS  - 2168-8184 (Linking)
VI  - 16
IP  - 2
DP  - 2024 Feb
TI  - Hyperkalemia-Induced T Wave Oversensing in an Implantable Cardioverter 
      Defibrillator.
PG  - e54135
LID - 10.7759/cureus.54135 [doi]
LID - e54135
AB  - A 66-year-old female with end-stage renal disease and heart failure with reduced 
      ejection fraction, status post implantable cardioverter defibrillator (ICD) 
      presented to the emergency department with dizziness and fatigue. An 
      electrocardiogram showed sinus rhythm, complete atrioventricular block, and 
      ventricular paced rhythm at 30 beats per minute (bpm). Device interrogation 
      revealed a programmed VVI mode with a lower rate limit of 40 bpm and evidence of 
      T wave oversensing. Serologic studies were remarkable for hyperkalemia (7.9 
      mmol/dL). The device was initially reprogrammed to provide a higher pacing rate 
      and symptomatic improvement. Both complete AV block and T wave oversensing 
      resolved after correction of hyperkalemia. This case highlights the need for 
      vigilant monitoring of electrolyte imbalances in ICD patients.
CI  - Copyright (c) 2024, Gonzalez et al.
FAU - Gonzalez, Ariel
AU  - Gonzalez A
AD  - Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, PRI.
FAU - Franqui, Hilton
AU  - Franqui H
AD  - Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, PRI.
FAU - Lopez, Jose
AU  - Lopez J
AD  - Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, PRI.
FAU - Banchs, Hector
AU  - Banchs H
AD  - Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, PRI.
LA  - eng
PT  - Case Reports
DEP - 20240213
PL  - United States
TA  - Cureus
JT  - Cureus
JID - 101596737
PMC - PMC10939479
OTO - NOTNLM
OT  - cardiac electrophysiology
OT  - cardiac implantable devices
OT  - implantable cardioverter-defibrillator (icd)
OT  - severe hyperkalemia
OT  - t wave oversensing
COIS- The authors have declared that no competing interests exist.
EDAT- 2024/03/15 06:44
MHDA- 2024/03/15 06:45
PMCR- 2024/02/13
CRDT- 2024/03/15 04:03
PHST- 2024/02/13 00:00 [accepted]
PHST- 2024/03/15 06:45 [medline]
PHST- 2024/03/15 06:44 [pubmed]
PHST- 2024/03/15 04:03 [entrez]
PHST- 2024/02/13 00:00 [pmc-release]
AID - 10.7759/cureus.54135 [doi]
PST - epublish
SO  - Cureus. 2024 Feb 13;16(2):e54135. doi: 10.7759/cureus.54135. eCollection 2024 
      Feb.