3 ms·

What is "single lead" device? Is that a single electrical contact patch? How can that detect anything? I've used a single patch with 4 electrical contacts for

What is "single lead" device? Is that a single electrical contact patch? How can that detect anything? I've used a single patch with 4 electrical contacts for a 30 day Holter test, plus the standard 24 hour Holter monitor with a bunch of patches and wires.

deusexml 8y ago
Some arrhythmias are trivial with a single lead because they manifest in the rate at which the heart beats. And from there, you can imagine there are a spectrum of arrythmias which become more morphological and likely harder to detect.
diimdeep 8y ago
What device have you used for 30 day test?
- Tharkun 8y ago
  There are various options, but for long periods single lead devices are often used, can't really walk around for 30 days with a 12 lead holter strapped to you...would make bathing rather difficult. It's possible to implant small loop recorders under the skin on the chest. These can record for months. Those are mostly useful in cases where symptoms occur infrequently.
- mnemotronic 8y ago
  I think what I had was called a Body Guardian. It consisted of a bunch of sticky strips (photo here:https://imgur.com/I9cXw1V https://imgur.com/I9cXw1V) that had 4 skin contact pads on the sticky side and 4 snap connectors on the other side. I'd stick this to the center of my chest just above nipple line. There were a pair of small pods that snapped to the 4 contacts. Each was about the 1/2 the size of a deck of cards. They would record continuously for about 16 hours. I'd alternate between them every 12 hours or so, recharging the one I wasn't using in the provided recharger. Also included was a customized Samsung cell phone with it's own recharger and an app that communicated wirelessly with the pods. The cell would download results from the pod & upload it to the company that provided the equipment. I carried that phone with me most of the time. When I connected a pod to the recharger, it would signal the cell phone which would download all results from the pod and upload to the company. My cardiologist got the results from them. The pods had a button that I could press when I felt like I was having "an event". The cell phone app would popup a selection list for possible events like skipped beat, extra beat, weak pulse, etc. I can't remember the entire list. I wasn't actually required to log these when I felt them -- they were just there to let the monitor S/W know I had noticed something. I'd remove the pod to shower but not to sleep or workout. The sticky strips would stay attached for at least a day unless I sweated a lot, like in a sauna. Strips were not reusable. They provide enough strips for the 30 day trial. My problem is PVCs (premature ventricular contractions ... skipped beats). Everyone gets these every day. I just get them a lot more frequently. Like 3 beats, skip, 4 beats, skip, 60 beats, skip, 10 beats, skip. I think the monitoring is pretty continuous. Second hand info, so take this with a grain of salt ..... A friend told me that he knew of someone else on the same or a similar system who has a much worse condition. At one point his monitor cell phone, his personal cell phone, his wife's cell phone and the house phone all rang simultaneously. When they answered, someone on the other end told them to get him to the emergency room immediately. He was having an event and not even aware of it. Turns out it was a good thing they did that.

deusexml 8y ago

Some arrhythmias are trivial with a single lead because they manifest in the rate at which the heart beats. And from there, you can imagine there are a spectrum of arrythmias which become more morphological and likely harder to detect.

diimdeep 8y ago

What device have you used for 30 day test?

Tharkun 8y ago
There are various options, but for long periods single lead devices are often used, can't really walk around for 30 days with a 12 lead holter strapped to you...would make bathing rather difficult. It's possible to implant small loop recorders under the skin on the chest. These can record for months. Those are mostly useful in cases where symptoms occur infrequently.
mnemotronic 8y ago
I think what I had was called a Body Guardian. It consisted of a bunch of sticky strips (photo here:https://imgur.com/I9cXw1V https://imgur.com/I9cXw1V) that had 4 skin contact pads on the sticky side and 4 snap connectors on the other side. I'd stick this to the center of my chest just above nipple line. There were a pair of small pods that snapped to the 4 contacts. Each was about the 1/2 the size of a deck of cards. They would record continuously for about 16 hours. I'd alternate between them every 12 hours or so, recharging the one I wasn't using in the provided recharger. Also included was a customized Samsung cell phone with it's own recharger and an app that communicated wirelessly with the pods. The cell would download results from the pod & upload it to the company that provided the equipment. I carried that phone with me most of the time. When I connected a pod to the recharger, it would signal the cell phone which would download all results from the pod and upload to the company. My cardiologist got the results from them. The pods had a button that I could press when I felt like I was having "an event". The cell phone app would popup a selection list for possible events like skipped beat, extra beat, weak pulse, etc. I can't remember the entire list. I wasn't actually required to log these when I felt them -- they were just there to let the monitor S/W know I had noticed something. I'd remove the pod to shower but not to sleep or workout. The sticky strips would stay attached for at least a day unless I sweated a lot, like in a sauna. Strips were not reusable. They provide enough strips for the 30 day trial. My problem is PVCs (premature ventricular contractions ... skipped beats). Everyone gets these every day. I just get them a lot more frequently. Like 3 beats, skip, 4 beats, skip, 60 beats, skip, 10 beats, skip. I think the monitoring is pretty continuous. Second hand info, so take this with a grain of salt ..... A friend told me that he knew of someone else on the same or a similar system who has a much worse condition. At one point his monitor cell phone, his personal cell phone, his wife's cell phone and the house phone all rang simultaneously. When they answered, someone on the other end told them to get him to the emergency room immediately. He was having an event and not even aware of it. Turns out it was a good thing they did that.