DOES YLANG YLANG (CANANGA ODORATA) INHALATION HAVE AN HYPOTENSOR EFFECT ON UNMEDICATED RESTING BLOOD PRESSURE IN INDIVIDUALS WITH BORDERLINE HYPERTENSION?
Debbie Freund, RN
presented on March 21,1999
Why the study was done:
Cardiovascular disease, including hypertension are responsible for most of the deaths in the United States. It seems that any possible means of alleviating this problem should be looked into. Many Aromatherapy books suggest that Ylang ylang Canaga oderata var genuina maybe an hypotensor, but there has not been enough work done to really substantiate the claims. References to ylang as an hypotensor are listed below.
In my massage practice over the past 10 years, the hypotensive effects of ylang have been eluded to, as I have had moderate success with relieving borderline hypertension with aromatherapy massage which included Ylang ylang. But I did not go about tracking it in it a systematic way.
I set out to devise a simple study that could be done with a minimum of inconvenience to both my patients and myself, and one that could be easily reproduced. I at first only included my massage patients but it became evident that many friends and acquaintances also have borderline hypertension and could benefit by being included.
| * Price, S., Aromatherapy for
Health Professionals, 1995, Churchhill Livingstone, p. 242; Buckle, J., Clinical Aromatherapy of Nursing, Ylang Ylang monograph |
|||
| Patient Information | ||||
| age range | 21-71yrs | |||
| males | 5 | |||
| females | 8 | |||
| white | 12 | |||
| black | 1 | |||
| 1 patient smokes | ||||
| 11 patients were more than 15 lbs overweight | ||||
| all live in central NJ | ||||
| all have high stress | ||||
| 2 males did not
like smell of ylang ylang 1 male complained of slight headache during inhalation |
||||
Data collection forms |
Patient #_____
Height ________ Weight _________ Age _______ Sex ________
Initial BP reading________ Pulse ___________ Respiration ___________
15 min. after Ylang inhalation
BP reading___________ Pulse ___________ Respiration ___________
Control:
Date
Initial BP reading________ Pulse ___________ Respiration ___________
15 min. after no Ylang inhalation
BP reading___________ Pulse ___________ Respiration ___________
I give my permission for Debbie Freund RN to carry out this AromatherapyBlood Pressure study. I understand I will be asked to inhale Ylang Ylang (on a tissue) for a fifteen-minute period to see if it affects my blood pressure. Pulse and respirations will also be taken in addition to BP before and after the inhalation. If at any time I become uncomfortable with the inhalation I may stop. I understand I could experience headache or allergy symptoms.
___________________________________________ DATE________________
On a scale of 1 to 10, with 1 being the most relaxed, and 10 being the most
stressed, please circle stress level before and after the inhalation.
Before inhalation:
__________________________________________________________________
1 2 3 4 5 6 7 8 9 10
After inhalation:
__________________________________________________________________
1 2 3 4 5 6 7 8 9 10
Control
On a scale of 1 to 10, with 1 being the most relaxed, and 10 being the most
stressed, please circle stress level before and after the rest period.
Before Rest:
__________________________________________________________________
1 2 3 4 5 6 7 8 9 10
After 15 minutes rest
__________________________________________________________________
1 2 3 4 5 6 7 8 9 10
Preliminary conclusions:
The data do seem to suggest that ylang inhalation does have an effect on borderline hypertension. It was a wakeup call to many of the participants as they previously refused to believe that daily life was affecting them at such cost to their cardiovascular systems. They at first could not believe that simply inhaling something could do anything for them. It became evident to me that 14 patients are not enough to make this study significant, but time constraints kept me from doing more.
I will carry on this study over the next 2 years and hope to include more than 500 patients. I have already sought permission from a local Health club to gather data there, and will go out into the community to get the participants I need. It is not hard to find patients with borderline hypertension. Most participants liked the smell of Ylang.
Comments:
One c/o of a headache 10 minutes into the inhalation.
One stated it smells like "monkey poop."
One person in the room with the participant stated the Ylang "blocked her sinuses."
Almost all participants requested a small bottle to carry around in their pocket to smell PRN when under stress.
RESULTS





STATISTICAL RESULTS
| with ylang | control/rest | Statistical t-test results* | ||||||||||||
| % change in systolic pressure | 11.5 |
3.5 |
99.98 |
% probability | ||||||||||
| % change in diastolic pressure | 8.8 |
3.5 |
99.88 |
that ylang had | ||||||||||
| % change in pulse | 7.2 |
5.3 |
99.25 |
effect | ||||||||||
| % change in respirations | 13.7 |
10.4 |
94.60 |
|||||||||||
| % change in visual analog | 45.7 |
26.0 |
99.89 |
|||||||||||
| *
student t-test used because sample set was less than 20 |
||||||||||||||
| This data suggests that ylang-ylang inhalation | ||||||||||||||
| indeed reduces blood pressure. | ||||||||||||||
| It would be extremely unlikely that the results could be expected based on random fluctuations of the data. | ||||||||||||||
| Based on the initial results, | ||||||||||||||
| I will continue this study over the next 2 years | ||||||||||||||
| with hopefully 500 patients | ||||||||||||||
| One thing that may have skewed the results is that all participants knew me. | ||||||||||||||
| This study is now being continued with "strangers." | ||||||||||||||