meadowlark
Senior Member
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- 241
- Location
- Toronto, Canada
No, I don't have one. ("Blood pressure machine" was my clunky phrasing for bp monitor.) It's obviously a good idea.
You can have high, low or normal BP with POTS. It is mostly about the tachycardia and of course the Autonomic dysfunction. Tachycardia sets us apart. Low BP is separate. Mine was really high when my POTS began. I take Benicar. A lower dose now that it is normal now! YAY!
If you do have POTS be VERY wary of diurectics. I didn't know at first and a doc. tried it, even a TINY dose had me so dizzy and ill, I couldn't move for 10 hours. NEVER again will I take a diuretic.
My BP was normal on Friday, but an EKG had revealed a very slow pulse. That doesn't surprise me, as I assume I have a low blood volume. Nevertheless, when I can get to the hospital (next week) I am going to wear a heart monitor for 48 hours.
Hi Tania: It's a Holter Monitor, 48 hours, for electrocardiograph only. I don't think she is trying to use it to investigate orthostatic intolerance. It's just her automatic next step for patients with a slow heartbeat.
I think I have posted this before, but will again. It is important and treatable.
"Orthostatic hypertension has also been associated with a number of conditions involving some form of autonomic dysfunction. In a recent study of patients with POTS in the context of disordered mast-cell activation, 38% (3/8) were shown to have orthostatic hypertension.19 Interestingly, in this group of patients, the orthostatic hypertension manifested as either a persistent hypertensive response to assumption of an upright posture or as a hypertensive crisis, with BP as high as 240/140, with upright posture. This has not been observed in patients who have POTS but do not have mast-cell activation disorder."
http://www.nature.com/nrneph/journal/v2/n8/full/ncpneph0228.html
Vandy paper on POTS and Mast Cell Disorders:
http://hyper.ahajournals.org/content/45/3/385.full
If you have both problems, Bets Blocker are contraindicated.
Tania... It is not easily found in the blood. One reason is that many are deficient in Tryptase, the Mast Cell mediator most often tested in the blood.
"RESULTS:
In support of our hypothesis, we find that alpha-tryptase deficiency affects 80/274 (29%) of individuals surveyed. The genotype of the alpha-deficient individuals is betabetabetabeta, due to inheritance of four beta genes. The percentage of the population with the mixed genotypes alphaalphabetabeta and alphabetabetabeta is 21% and 50%, respectively. Accounting for all alpha- and beta-alleles at the tandem loci on 16p13.3, overall alpha-allele frequency is only 0.23, with beta-alleles considerably outnumbering alpha as hypothesized. In samples of defined ethnicity, alpha deficiency affects 45% of Caucasians, but a much lower percentage of other backgrounds, including African-Americans and Asians. "
http://www.ncbi.nlm.nih.gov/pubmed/12100045
It is not easy to obtain a diagnosis, as Mast Cell Diseases are supposed to be rare, but if you are interested, you can check out The Mastocytosis Society site for symptoms and tips on how to find care.