Herbal medicine use by surgery patients in Hungary: a descriptive study

BACKGROUND: The popularity of non-conventional treatments, especially the consumption of herbs is showing an increasing tendency all over the world. The consumption of herbal medicines might cause several complications during perioperative care. METHODS: The survey was conducted at the First Department of Surgery of Semmelweis University and focused on the demographics of patients consuming herbal medicines who had undergone elective surgery between July 1(st) 2014 and February 28(th) 2015. A one-page questionnaire, that the patients filled in individually and anonymously, was used. The response rate was 17.3 %. RESULTS: Out of the 390 patients who filled in the questionnaire, 7.2 % (28 patients) used herbal medicines, 3.6 % (14 patients) of them two weeks prior to their hospitalization. The other 3.6 % (14 patients) took herbal medicines sometime in the past. The majority of those who have ever consumed herbs are women (18/28), have completed secondary or tertiary education (23/28), more than half of them suffer from tumorous diseases and only a quarter of them (7/28) informed their physician about their use of herbal medication of their own accord. CONCLUSIONS: Attention must be paid to the exploration of herb consumption habits of surgery patients during the preoperative examinations in order to avoid potential side effects, complications or drug interactions. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s12906-015-0890-2) contains supplementary material, which is available to authorized users

The Prevalence of Natural Health Product Use in Patients with Acute Cardiovascular Disease

Background: Natural health products (NHP) use may have implications with respect to adverse effects, drug interactions and adherence yet the prevalence of NHP use by patients with acute cardiovascular disease and the best method to ascertain this information is unknown. Objective: To identify the best method to ascertain information on NHP, and the prevalence of use in a population with acute cardiovascular disease. Methods: Structured interviews were conducted with a convenience sample of consecutive patients admitted with acute cardiovascular disease to the University of Alberta Hospital during January 2009. NHP use was explored using structured and open-ended questions based on Health Canada’s definition of NHP. The medical record was reviewed, and documentation of NHP use by physicians, nurses, and pharmacists, compared against the gold-standard structured interview. Results: 88 patients were interviewed (mean age 62 years, standard deviation [SD 14]; 80 % male; 41 % admitted for acute coronary syndromes). Common co-morbidities included hypertension (59%), diabetes (26%) and renal impairment (19%). NHP use was common (78 % of patients) and 75 % of NHP users reported daily use. The category of NHP most commonly used was vitamins and minerals (73%) followed by herbal products (20%), traditional medicines including Chines

Buyer beware? : does the information provided with herbal products available over the counter enable safe use?

Background: Herbal products obtained over the counter are commonly used in Europe, North America and Australia. Although there is concern about a lack of information provided to consumers to allow the safe use of these products, there has been no published research to confirm these fears. In this study, we evaluated written information provided with commonly used herbal products in the UK in advance of a European Union Directive issued in April 2011 that tightened regulations for some herbal products, including requirements to provide safety information. Methods: Five commonly used herbal products were purchased from pharmacies, health food shops and supermarkets: St John’s wort, Asian ginseng, echinacea, garlic and ginkgo. Written information provided with the products (on the package or on a leaflet contained in the package) was evaluated for inclusion of each of the key safety messages included in the monographs of the US National Center for Complementary and Alternative Medicine. Specifically, we looked for information on precautions (such as Asian ginseng not being suitable for people with diabetes), interactions with conventional medicines (such as St John’s wort with the contraceptive pill and warfarin) and side effects (such as ginkgo and allergic reactions). Results: Our analysis showed that, overall, 51 (75%) of 68 products contained none of the key safety messages. This included 4 of 12 St John’s wort products, 12 of 12 ginkgo products, 6 of 7 Asian ginseng products, 20 of 21 garlic products and 9 of 13 echinacea products. The two products purchased that are registered under the new European Union regulations (for St John’s wort) contained at least 85% of the safety messages. Conclusions: Most of the herbal medicine products studied did not provide key safety information which consumers need for their safe use. The new European Union legislation should ensure that St John’s wort and echinacea products will include the previously missing information in due course. The legislation does not apply to existing stock. Depending on therapeutic claims made by manufacturers, garlic, ginkgo and Asian ginseng products may not be covered by the legislation and can continue to be bought without the safety information. Also, consumers will still be able to buy products over the internet from locations outside European Union jurisdiction. Potential purchasers need to know, in both the short term and the long term, how to purchase herbal products which provide the information they need for the safe use of these products