The role of complementary and alternative therapies in cardiac rehabilitation: a systematic evaluation.

BACKGROUND: Presently, complementary and alternative medicine, including both therapies and herbal/oral supplements, is used globally. Few studies have examined the use of specific therapies, separate from herbal/oral supplements, in cardiac rehabilitation. This paper presents a systematic evaluation of current research evidence related to use of specific complementary and alternative medicine therapies in secondary prevention of cardiovascular disease, with a view to making recommendations for cardiac rehabilitation. DESIGN AND METHODS: A literature search was conducted using complementary and alternative medicine websites, Medline, Allied and Complementary Medicine, CINAHL, Cochrane databases, EMBASE, SportDiscus, Clinical Evidence, and Evidence-Based Practice to locate research-based scientific evidence related to the use of complementary and alternative medicine in cardiac rehabilitation. Search keywords included heart, cardiac, cardiovascular, coronary, myocardial and rehabilitation, combined with particular therapies. Herbal/oral supplements were not included in this evaluation. RESULTS: Some complementary and alternative medicine therapies may be useful to patients by themselves or coupled with traditional cardiac rehabilitation. Tai chi, as a complement to existing exercise interventions, can be utilized for low and intermediate risk patients. transcendental meditation may be used as a stress reduction technique. There was insufficient evidence found for the use of acupuncture or chelation therapy in cardiac rehabilitation or secondary prevention. CONCLUSIONS: Some complementary and alternative medicine therapies hold promise for patients in cardiac rehabilitation. Further research is essential, however, in all areas of complementary and alternative medicine to confirm its usefulness as an adjunct to cardiac rehabilitation.     

Why I would not recommend complementary or alternative therapies: a physician's perspective

The use of complementary or alternative therapies by patients with rheumatic diseases is widespread and under-reported by patient to physician. The most commonly used forms of therapy are herbal/nutrient supplements, chiropractic, homeopathy, and acupuncture. The use of these therapies for treatment of rheumatic disease is not substantiated by review of the available medical literature. Furthermore, these therapies are expensive and potentially toxic. Incorporation of these treatments into the therapeutic armamentarium of the rheumatologist cannot be recommended until they are shown to be effective, safe, and affordable.     

Complementary and alternative therapies for fibromyalgia

Fibromyalgia (FM) is a syndrome of chronic widespread musculoskeletal pain that is accompanied by sleep disturbance and fatigue. Clinical treatment usually includes lifestyle modifications and pharmacologic interventions meant to relieve pain, improve sleep quality, and treat mood disorders. These therapies are often ineffective or have been shown in clinical studies to have only short-term effectiveness. Pharmacologic treatments have considerable side effects. Patients may have difficulty complying with exercise-based treatments. Thus, patients seek alternative therapeutic approaches and physicians are routinely asked for advice about these treatments. This article reviews nontraditional treatment alternatives, from use of nutritional and herbal supplements to acupuncture and mindbody therapy. Little is known about efficacy and tolerance of complementary and alternative therapies in FM and other chronic musculoskeletal pain syndromes. Most studies on these treatments have been performed for osteoarthritis, rheumatoid arthritis, or focal musculoskeletal conditions. Clinical trials are scarce; the quality of these trials is often criticized because of small study population size, lack of appropriate control interventions, poor compliance, or short duration of follow-up. However, because of widespread and growing use of alternative medicine, especially by persons with chronic illnesses, it is essential to review efficacy and adverse effects of complementary and alternative therapies.     

Complementary or alternative therapies for osteoarthritis

Complementary or alternative therapies for osteoarthritis are commonly used and therefore it is important that health-care providers and patients are aware of the evidence for or against these approaches. In this article, the best available evidence is reviewed. The results suggest that, for several treatments, the risk-benefit profile is encouraging: acupuncture, several herbal medicines and capsaicin cream. For other therapies the evidence is weak or contradictory: homeopathy, magnet therapy, tai chi, leech therapy, music therapy, yoga, imagery and therapeutic touch. Many other treatments have not been scientifically tested. It is concluded that some complementary or alternative therapies have generated sufficiently promising results to warrant further investigation in large-scale, definitive, randomized clinical trials.     

Adverse effects of herbal treatment of cardiovascular disease: what the physician must know

The increasing use of herbal products by patients with cardiovascular disease represents a clinical challenge to physicians. The use of herbal products is increasing in our society, and less than 50% of patients using herbal products report this information to their physicians. In addition, physicians often lack the knowledge base for herbal medications to effectively counsel patients regarding adverse effects and potential herb-drug interactions. This article reviews Western and traditional Chinese herbs that are commonly used by patients with cardiovascular diseases, herbs noted to have adverse cardiovascular effects, and herbs that may potentially interact with commonly prescribed cardiovascular medications.     

Herbal and traditional Chinese medicine for the treatment of cardiovascular complications in diabetes mellitus

Cardiovascular diseases, the number one causes of death worldwide, are responsible for the majority of the increased morbidity and mortality seen in patients with diabetes mellitus. Useful therapies for diabetes include lifestyle modification and drugs to lower conventional cardiovascular risk factors, such as metformin, thiazolindinedione, sulfonylureas and evidence-based drugs. These hypoglycemic or antihyperglycemic agents are widely used either for monotherapy or in combination to improve glycemic control and to slow disease progression associated with a decline in pancreatic function in diabetic patients. In addition, a large body of clinical evidence has suggested that the appropriate use of traditional Chinese medicines with modern Western medicinal, or mainstream antidiabetic drugs, can prevent or ameliorate the development of diabetic complications. The traditional Chinese medicine diagnostics are based on "zheng" or "symptom", a system emphasizing the overall function of the human body. Since diabetes is a rather complicated metabolic disorder involving multi-organ damage, a majority of diabetic patients may be subject to multi-pharmacy to combat symptoms resulting from diabetes. Many diabetic patients choose alternative therapeutic approaches such as herbal or traditional Chinese medicine along with the mainstream anti-diabetic drugs, thus making alternative therapy for diabetes a popular remedy. In this review, we will briefly summarize the application of herbal or traditional Chinese medicinal therapy for diabetes with an emphasis on diabetic cardiovascular complications.     

Hepatotoxicity induced by herbs and medicines used to induce weight loss

In the last few years, a considerable number of reports have been published on hepatotoxicity associated with herbal products attributed with weight-reducing properties. Clinical expression of hepatotoxicity has ranged from symptoms of self-limiting hepatitis, indistinguishable from those caused by the hepatitis viruses, to forms of fulminant hepatitis causing death or requiring liver transplantation. These products, which are sold as dietary products or supplements, do not undergo the safety tests required of drugs before their release on to the market. To prevent the toxic effects of herbal products, the general public should be made aware of their harmful effects and since the benefits of these products have not been demonstrated avoid their use, while physicians should strongly discourage patients from taking these products. Authorization of the commercialization of all these natural products should be strictly regulated to minimize the harm they can cause.     

Complementary therapy in allergic rhinitis

The term complementary/alternative medicine (CAM) refers to those therapeutic and diagnostic approaches different from conventional allopathic medicine. CAM may encompass homeopathy, acupuncture, phytotherapy, antioxidant therapy, and numerous holistic or behavioral techniques. Allergists and physicians of all disciplines are confronted with patients using CAM treatments, making it imperative that they become familiar with the scientific literature surrounding them. Given the high prevalence of allergic diseases and associated costs of CAM treatments, proof of CAM therapies is needed to establish appropriate guidelines for their use. Efficacy of CAM modalities should be established with randomized, double-blind, placebo-controlled trials, including adverse-effects monitoring. Of all the CAM therapies examined to treat allergic rhinitis, some herbal therapies and antioxidants demonstrate a trend toward some clinical efficacy. Researchers have yet to determine how to integrate these CAM modalities into the general treatment paradigm of allergic rhinitis.     

Use of complementary medicine in systemic lupus erythematosus patients in Malaysia

Aim: To determine the prevalence of the use of complementary medicine in patients with systemic lupus erythematosus (SLE). Method: A prospective survey was conducted of 132 patients using a standard questionnaire. Results: Of the 132 patients, 15.2% were on alternative therapy and 56.7% were taking food supplements. The common types of alternative therapy taken were oral traditional herbs (50%) and noni juice (20%). Vitamin C, calcium, vitamin E, vitamin B, Spirulina, evening primrose oil, fish oil and multivitamins were the commonest food supplements. There was no significant relationships between taking alternative treatment and educational level (P = 0.16), income (P = 0.05) or race (P = 0.42) of the patients. The majority of these patients took these therapies or supplements for up to 1 year. Up to 70% of the patients had not consulted a doctor before taking these therapies, with immediate family members and friends being the main sources of recommendation. The majority of patients spent RM50?RM500 (US$13?US$132) for 2 months’ supply of medications. In conclusion, 15.2% of SLE patients in our study were on alternative therapy and 57.6% on food supplements. Conclusion: Physicians should be aware of these practices which should be taken into account during the history‐taking and subsequent management of the patients.     

Complementary and alternative medicine (CAM) use by older adults: a comparison of self-report and physician chart documentation

BACKGROUND: Older adults are increasingly using complementary and alternative medicine (CAM) dietary supplements and herbal remedies, but may not discuss this with their physicians. When patients do report using CAM, their physicians may not record this information in patient charts. METHODS: This cross-sectional analysis compared results of a convenience sample survey with medical charts. Participants were older than 65 and from an urban academic hospital's ambulatory geriatrics practice. We measured (i) prevalence of CAM use; (ii) proportion of CAM supplements and herbs (CAMsh) reported by patients and documented in patients' charts; (iii) percentage of patients reporting taking CAMsh with anticoagulant activity (ginger, ginkgo, garlic, and vitamin E) while concomitantly taking prescribed anticoagulant medications, as per chart; and (iv) percentages of those patients for whom the CAM anticoagulant was or was not documented in the chart. RESULTS: We surveyed 212 patients; of those, 182 had available charts. Prevalence of CAM use was 64%. Only 35% of all self-reported supplements were documented in the charts. Of 182 patients, 84 (46%) reported taking CAM with anticoagulant properties: of these, 52% took a prescribed anticoagulant (per chart), while 48% took CAM but not prescribed anticoagulants. CONCLUSION: CAM use is highly prevalent among older adults. Physicians do not consistently record the use of CAMsh on patients' charts. This may lead to unrecognized, potentially harmful drug-herb/drug-supplement interactions. Physicians should elicit and document information on CAM use from older adult patients, both to provide sound medical care and to advance knowledge about drug-herb/drug-supplement interactions.     

Is there any use for nontraditional or alternative therapies in patients with chronic liver disease?

There has been a substantial increase in the use of so-called complementary and alternative therapies by patients with liver disease. Although many such modalities are available, herbal therapies are the most popular, and of these remedies, silymarin extracted from the milk thistle is most widely subscribed to as a remedy for liver diseases. Available evidence points to a potential, but unproven, benefit for this as well as other therapies based on free radical scavenger or antioxidant principles in treating patients with liver disease. These therapies deserve further investigation through experimental studies and well-controlled clinical trials. Benefits to patients from these therapies, especially to patients with established cirrhosis, are most likely to be modest and insignificant. Conversely, the hepatotoxic potential of some alternative treatments is well recognized. As practitioners educating and treating patients with liver disease, we are obliged to be informed about popular alternative therapies, understanding of our patients‘ need to be partners in their care, and open-minded to the possibility that some benefit may come from some therapies currently regarded as alternative. We need to be effective and tolerant in learning about which alternative treatments our patients are taking, so that we can monitor their effects if any and counsel appropriately against those that may cause harm.     

Potential health risks of complementary alternative medicines in HIV patients

Objectives

To determine the prevalence and purpose of complementary alternative medicines (CAMs) use in people receiving treatment for HIV infection. To identify and quantify potential health risks of CAM use in this population and to explore options for improved pharmacovigilance.

Methods

Cross‐sectional questionnaire survey of 293 patients receiving antiretroviral (ARV) therapy at three specialist HIV out‐patient clinics in central London, UK. The use of herbal medicines and supplements was explored, and potentially adverse side effects or significant drug interactions with conventional therapies were identified.

Results

Of the 293 patients included, 61% (n=179) were taking herbal remedies or supplements and 35% (n=103) were using physical treatments. Twenty‐seven per cent (n=80) used a combination of both. Twenty per cent (n=59) potentially compromised their HIV management through using CAM therapy. Ten per cent (n=29) were advised to stop their CAMs and 15% (n=43) were made aware of potential drug interactions and adverse effects and were advised to monitor their care.

Conclusions

There are potentially significant health risks posed by the concomitant use of CAMs in patients taking ARV therapy. Medical practitioners need to be able to identify CAM use in HIV‐positive patients and recognize potential health risks. Patients should be encouraged to disclose CAM use to their clinicians and other healthcare professionals.     

Diabetes and Alternative Medicine: Cause for Concern

‘Alternative’ medicines are becoming increasingly popular, and in this paper we describe our experience with alternative approaches to orthodox diabetes management. Four patients with insulin-dependent diabetes reduced or stopped their insulin in favour of therapeutic approaches including prayer, faith healing, unusual diets, and supplements of vitamins and trace elements. This resulted in ketoacidosis in three, in one case life-threatening; and weight loss and hyperglycaemia in the other. One patient developed serious retinopathy. Additionally, eight other types of alternative diabetic treatment are described, not as far as we know associated with such serious complications. These include homeopathy, reflexology, meditation, herbal treatment, ‘cellular nutrition’, ‘subconscious healing’, ‘pearl therapy’ (drinking milk in which pearls have been boiled) and ‘astrotherapy’ (tying pieces of coral around the arm). Diabetes is a chronic incurable disease, for which modern treatments remain somewhat unsatisfactory. It is therefore perhaps not surprising that some patients seek alternative treatments with more attractive claims. Diabetes health professionals need to be aware of the potential dangers associated with some of these treatments.     

Carotid Baroreceptor Stimulation and Arteriovenous Shunts for Resistant Hypertension

Pharmacologic therapy for hypertension is effective for the majority of patients with hypertension, but there is a subset of the population with treatment-resistant hypertension who cannot achieve their blood pressure goal despite taking multiple medications. Since these patients are at increased risk of cardiovascular disease and end-organ damage, additional therapies must be considered. This review discusses several novel interventional therapies—including baroreflex activation therapy, baroreceptor stenting, and creation of an arteriovenous shunt—that may provide alternative options for blood pressure control in those with treatment-resistant hypertension. All of these therapies remain investigational, and each has its own strengths and weaknesses that will be critical to assess as they come to market.