Hey all –
- 2 year old FS Jack Russell
- Had ripped out her own incisors on her housemate, so we had her under anesthesia for repair of the gingiva and a dental cleaning (preanesthetic exam normal, no heart murmurs, blood work declined).
- Anesthesia included a premed of 0.005 mg/kg dexdomitor and 0.5 mg/kg morphine, induction with propofol to effect, and maintenance with sevoflurane.
- Dog was placed on 10 mL/kg/hr IV fluids (Normosol R), and local blocks were placed in case of extractions.
- 2 year old FS Jack Russell
- Had ripped out her own incisors on her housemate, so we had her under anesthesia for repair of the gingiva and a dental cleaning (preanesthetic exam normal, no heart murmurs, blood work declined).
- Anesthesia included a premed of 0.005 mg/kg dexdomitor and 0.5 mg/kg morphine, induction with propofol to effect, and maintenance with sevoflurane.
- Dog was placed on 10 mL/kg/hr IV fluids (Normosol R), and local blocks were placed in case of extractions.
- HR was regular around 70-90 bpm with a mild sinus arrhythmia, but our monitor had a hard time reading the heart rate and kept reporting either half the rate (40s) or double (180-200). She had normal bp throughout.
- EKG (regular clip leads placed) showed odd complexes with short p and qrs waves and a very tall T wave. I wasn’t sure what to make of this, so I went ahead and ran an AliveCOR EKG as well to see if it was repeatable. We were done with the dental at this time and the dog was waking up.
- I think the inverted p wave has to do with the placement of the phone, since the p waves were normal on the anesthetic monitor.
- What are thoughts on the very large and wide T waves?
Hey all –
Comments
The ECG appears to be upside
The ECG appears to be upside down since P-waves and T-waves are negative and the QRS complex appears to be inverted too 🙂
in dogs the T-wave increases in amplitude mostly due to hypoxia and hyperkalemia. Thus, I would consider the anesthesia the most likely reason. Recording another ECG in the awake patient would confirm this.
There could possibly be a relation between the high t-waves and the use of dexdomitor (peripheral vasoconstriction) but this is just one of my personal assumptions.
Peter
The ECG appears to be upside
The ECG appears to be upside down since P-waves and T-waves are negative and the QRS complex appears to be inverted too 🙂
in dogs the T-wave increases in amplitude mostly due to hypoxia and hyperkalemia. Thus, I would consider the anesthesia the most likely reason. Recording another ECG in the awake patient would confirm this.
There could possibly be a relation between the high t-waves and the use of dexdomitor (peripheral vasoconstriction) but this is just one of my personal assumptions.
Peter