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Amatrudo G, Kengetter J, McCrea S, Amatrudo M. Cognitive Behavioral Therapy for the Management of Episodic Migraine. Curr Pain Headache Rep 2023; 27:471-477. [PMID: 37395898 DOI: 10.1007/s11916-023-01129-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/05/2023] [Indexed: 07/04/2023]
Abstract
PURPOSE OF REVIEW This article provides an overview of the application of CBT in the management of episodic migraine while also providing context and insight into the underlying neurophysiological mechanisms of therapeutic change. It discusses the theoretical foundations of CBT and highlights key components including education, cognitive restructuring, behavioral interventions, relaxation techniques, and lifestyle changes. RECENT FINDINGS Cognitive behavioral therapy (CBT) is an empirically based treatment that is well suited for the management of episodic migraine. Although first-line treatments of migraine are typically pharmacological, a review of empirical literature suggests growing evidence for the use of CBT as a standard non-pharmacological treatment of headache conditions. In summary, this article explores evidence supporting the efficacy of CBT in reducing the frequency, intensity, and duration of migraine attacks as well as improving the quality of life and psychological well-being of those with episodic migraine.
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Quadt L, Critchley H, Nagai Y. Cognition, emotion, and the central autonomic network. Auton Neurosci 2022; 238:102948. [PMID: 35149372 DOI: 10.1016/j.autneu.2022.102948] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 12/05/2021] [Accepted: 01/16/2022] [Indexed: 10/19/2022]
Abstract
The demands of both mental and physical activity are integrated with the dynamic control of internal bodily states. The set of neural interactions that supports autonomic regulation extends beyond afferent-efferent homeostatic reflexes (interoceptive feedback, autonomic action) to encompass allostatic policies reflecting more abstract and predictive mental representations, often accessed as conscious thoughts and feelings. Historically and heuristically, reason is contrasted with passion, cognition with emotion, and 'cold' with 'hot' cognition. These categories are themselves arbitrary and blurred. Investigations of psychological processes have been generally pursued during states of musculoskeletal quiescence and are thus relatively insensitive to autonomic interaction with attentional, perceptual, mnemonic and decision-making processes. Autonomic psychophysiology has nevertheless highlighted the bidirectional coupling of distinct cognitive domains to the internal states of bodily arousal. More powerfully perhaps, in the context of emotion, autonomically mediated changes in inner bodily physiological states are viewed as intrinsic constituents of the expression of emotions, while their feedback representation is proposed to underpin emotional and motivational feelings. Here, we review the brain systems, encapsulated by the notion of central autonomic network, that provide the interface between cognitive, emotional and autonomic state. These systems span the neuraxis, overlap with the more general governance of behaviour, and represent district levels of proximity to survival-related imperatives. We touch upon the conceptual relevance of prediction and surprise to understanding the integration of cognition and emotion with autonomic control.
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Affiliation(s)
- Lisa Quadt
- BSMS Department of Neuroscience, University of Brighton and University of Sussex, UK; Sussex Neuroscience, University of Sussex, UK
| | - Hugo Critchley
- BSMS Department of Neuroscience, University of Brighton and University of Sussex, UK; Sussex Neuroscience, University of Sussex, UK; Sackler Centre for Consciousness Science, University of Sussex, UK; Sussex Partnership NHS Foundation Trust, UK.
| | - Yoko Nagai
- BSMS Department of Neuroscience, University of Brighton and University of Sussex, UK; Sussex Neuroscience, University of Sussex, UK
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Abstract
Over the past decades, virtual reality (VR) has found its way into biofeedback (BF) therapy programs. Using VR promises to overcome challenges encountered in traditional BF such as low treatment motivation, low attentional focus and the difficulty of transferring learnt abilities to everyday life. Yet, a comprehensive research synthesis is still missing. Hence, this scoping review aims to provide an overview over empirical studies on VR based BF regarding key outcomes, included samples, used soft- and hardware, BF parameters, mode of application and potential limitations. We systematically searched Medline, PsycINFO, Scopus, CINAHL, Google Scholar and Open Grey for empirical research. Eighteen articles met the inclusion criteria. Samples mostly consisted of healthy (44.4%) and/or adult (77.7%) participants. Outcomes were mainly anxiety (44.4%), stress (44.4%) or pain reduction (11.1%), which were reduced by the VR-BF interventions at least as much as by classical BF. Participants in VR-BF interventions showed higher motivation and involvement as well as a better user experience. Heart rate or heart rate variability were the most frequently used BF parameters (50.0%), and most VR-BF interventions (72.2%) employed a natural environment (e.g., island). Currently, there is no clear evidence that VR-BF is more effective than traditional BF. Yet, results indicate that VR-BF may have advantages regarding motivation, user experience, involvement and attentional focus. Further research is needed to assess the specific impact of VR and gamification. Also, testing a broader range of clinical and younger samples would allow more far-reaching conclusions.
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Affiliation(s)
- Robin Lüddecke
- Department of Pediatrics and Adolescent Medicine, Division of Pediatric Pulmonology, Allergology and Endocrinology, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
- Comprehensive Center for Pediatrics, CCP, Medical University of Vienna, Vienna, Austria
| | - Anna Felnhofer
- Department of Pediatrics and Adolescent Medicine, Division of Pediatric Pulmonology, Allergology and Endocrinology, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.
- Comprehensive Center for Pediatrics, CCP, Medical University of Vienna, Vienna, Austria.
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Biçer S, Ünsal A, Taşcı S, Demir G, Ceyhan YŞ. The Effect of Acupressure on Blood Pressure Level and Pulse Rate in Individuals With Essential Hypertension: A Randomized Controlled Trial. Holist Nurs Pract 2021; 35:40-48. [PMID: 33492879 DOI: 10.1097/hnp.0000000000000384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
A total of 91 people including 47 in the intervention group and 44 in the placebo group were included to a randomized controlled study. It can be asserted that acupressure, applied to the Neiguan (PC 6) acupuncture point in individuals with essential hypertension, provides blood pressure regulation and is effective for management of numerous hypertension-related symptoms.
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Affiliation(s)
- Sevil Biçer
- Department of Nursing, Faculty of Health Sciences, Erciyes University, Kayseri, Turkey (Drs Biçer and Taşcı); and Department of Nursing, School of Health, Ahi Evran University, Kırşehir, Turkey (Drs Ünsal, Demir, and Ceyhan)
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Using the immediate blood pressure benefits of exercise to improve exercise adherence among adults with hypertension: a randomized clinical trial. J Hypertens 2020; 37:1877-1888. [PMID: 31058797 DOI: 10.1097/hjh.0000000000002115] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND A single exercise session evokes immediate blood pressure (BP) reductions that persist for at least 24 h, termed postexercise hypotension (PEH). Self-monitoring of PEH may foster positive outcome expectations of exercise, and thus, enhance exercise adherence among adults with hypertension. PURPOSE To compare the efficacy of self-monitoring of exercise (EXERCISE) versus exercise and PEH (EXERCISE + PEH) to improve exercise adherence and BP control among adults with hypertension. METHODS Adults with high BP were randomized to EXERCISE (n = 12) or EXERCISE + PEH (n = 12). Participants underwent supervised, moderate intensity aerobic exercise training for 40-50 min/session, 3 days/week for 12 weeks and encouraged to exercise unsupervised at home at least 30 min/day, 1-2 days/week. EXERCISE + PEH also self-monitored BP before and after exercise. Adherence was calculated as [(no. of exercise sessions performed/no. of possible exercise sessions) × 100%]. BP was measured pre and posttraining. RESULTS Healthy, middle-aged (52.3 ± 10.8 years) men (n = 11) and women (n = 13) with hypertension (136.2 ± 10.7/85.2 ± 8.9 mmHg) completed exercise training with 87.9 ± 12.1% adherence. EXERCISE + PEH demonstrated greater adherence to supervised training (94.3 ± 6.6%) than EXERCISE (81.6 ± 13.2%; P = 0.007). EXERCISE + PEH performed 32.6 ± 22.5 min/week more unsupervised home exercise than EXERCISE (P = 0.004), resulting in greater exercise adherence (107.3 ± 18.7%) than EXERCISE (82.7 ± 12.2%; P = 0.002). Post versus pretraining BP was reduced -7.4 ± 11.3/-4.9 ± 9.9 mmHg (P < 0.025) with no statistical difference between EXERCISE (-5.2 ± 13.3/-3.6 ± 6.1 mmHg) and EXERCISE + PEH (-9.9 ± 11.3/-6.1 ± 6.9 mmHg; P > 0.344). CONCLUSION The current study is the first to demonstrate that PEH self-monitoring is an efficacious tool to improve exercise adherence among a small sample of adults with hypertension. Future research among a larger, more diverse sample is needed to confirm these novel findings and determine whether EXERCISE + PEH translates to better BP control relative to EXERCISE self-monitoring alone.
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Lopez Abel B, I Martínez-Soto M, Luz Couce M. Integrative cardiology-state of the art of mind body therapies for the treatment of cardiovascular disease and risk factors. AIMS MEDICAL SCIENCE 2018. [DOI: 10.3934/medsci.2018.1.80] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Garcha AS, Cohen DL. Catecholamine excess: pseudopheochromocytoma and beyond. Adv Chronic Kidney Dis 2015; 22:218-23. [PMID: 25908471 DOI: 10.1053/j.ackd.2014.11.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 11/02/2014] [Accepted: 11/03/2014] [Indexed: 12/21/2022]
Abstract
Symptoms of catecholamine excess or pseudopheochromocytoma can be clinically indistinguishable from pheochromocytoma. Patients usually present with paroxysmal or episodic hypertension and have a negative evaluation for pheochromocytoma. It is important to exclude other causes of catecholamine excess that can be induced by stress, autonomic dysfunction due to baroreflex failure, medications, and drugs. Patients with pseudopheochromocytoma appear to have an amplified cardiovascular responsiveness to catecholamines with enhanced sympathetic nervous stimulation. The exact mechanism is not well understood and increased secretion of dopamine, epinephrine, and norepinephrine, and their metabolites have been identified as potentiating this clinical scenario leading to differing hemodynamic presentations depending on which catecholamine is elevated. Management of this condition is often difficult and frustrating for both the physician and the patient. Most patients respond reasonably well to medications that reduce sympathetic nervous system activity. Anxiolytics, antidepressants, and psychotherapy also play an important role in managing these patients' symptoms.
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Clinical effectiveness of stress-reduction techniques in patients with hypertension. J Hypertens 2014; 32:1936-44; discussion 1944. [DOI: 10.1097/hjh.0000000000000298] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Siddiqui MJ, Min CS, Verma RK, Jamshed SQ. Role of complementary and alternative medicine in geriatric care: A mini review. Pharmacogn Rev 2014; 8:81-7. [PMID: 25125879 PMCID: PMC4127825 DOI: 10.4103/0973-7847.134230] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 10/28/2013] [Accepted: 06/10/2014] [Indexed: 11/04/2022] Open
Abstract
Since time immemorial homo sapiens are subjected to both health and diseases states and seek treatment for succor and assuagement in compromised health states. Since last two decades the progressive rise in the alternative form of treatment cannot be ignored and population seems to be dissatisfied with the conventional treatment modalities and therefore, resort to other forms of treatment, mainly complementary and alternative medicine (CAM). The use of CAM is predominantly more popular in older adults and therefore, numerous research studies and clinical trials have been carried out to investigate the effectiveness of CAM in the management of both communicable and non-communicable disease. In this current mini review, we attempt to encompass the use of CAM in chronic non-communicable diseases that are most likely seen in geriatrics. The current review focuses not only on the reassurance of good health practices, emphasizing on the holistic development and strengthening the body's defense mechanisms, but also attempts to construct a pattern of self-care and patient empowerment in geriatrics. The issues of safety with CAM use cannot be sidelined and consultation with a health care professional is always advocated to the patient. Likewise, responsibility of the health care professional is to inform the patient about the safety and efficacy issues. In order to substantiate the efficacy and safety of CAMs, evidence-based studies and practices with consolidated standards should be planned and executed.
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Affiliation(s)
- Mohammad Jamshed Siddiqui
- Department of Pharmaceutical Chemistry, Kulliyyah of Pharmacy, International Islamic University Malaysia, Kuantan Campus, Pahang, Malaysia
| | - Chan Sze Min
- Strathclyde Institute of Pharmacy and Biomedical Sciences, Faculty of Science, University of Stratchlyde, United Kingdom
| | - Rohit Kumar Verma
- Department of Pharamcy Practice, School of Pharmacy, International Medical University, Bukit Jalil Campus, Kuala Lumpur, Malaysia
| | - Shazia Qasim Jamshed
- Department of Pharmacy Practice, Kulliyyah of Pharmacy, International Islamic University Malaysia, Kuantan Campus, Pahang, Malaysia
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Abstract
It is believed that we cannot change our heart rhythm by will because the heartbeat is mainly controlled by the autonomic nervous system (ANS), which cannot be affected directly by subjective will. An experiment was designed to determine whether the heartbeat and ANS could be controlled by volition, and, if it is true, how they were controlled. It was demonstrated that the ANS could be partly controlled by volition. The volition, which tended to slow down the heartbeat, initiated synchronized activity in the medial prefrontal cortex, inhibited the sympathetic system, and then decreased the heartbeat. On the other hand, another kind of volition, which sped up the heartbeat, initiated desynchronized activity at the precentral, central, parietal, and occipital regions, inhibited the parasympathetic system and excited the sympathetic system, and then increased the heartbeat. Moreover, information flow from posterior cortex to anterior cortex was observed during the experiment. The parietal area played an important role in triggering the sensorimotor cortex and integrating the information, and the information flow from the central and precentral cortex to heart was dominant. All that demonstrated that volition can partly control the heartbeat, but the behavior was different from the motor nervous system.
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Affiliation(s)
- Xiaolin Yu
- Department of Information Engineering, Officers College of CAPF, Chengdu, China
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Yu X, Zhang C, Zhang J. Causal interactions between the cerebral cortex and the autonomic nervous system. SCIENCE CHINA-LIFE SCIENCES 2014; 57:532-8. [DOI: 10.1007/s11427-014-4627-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Accepted: 10/05/2013] [Indexed: 11/25/2022]
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Nakao M, Ohara C. The perspective of psychosomatic medicine on the effect of religion on the mind-body relationship in Japan. JOURNAL OF RELIGION AND HEALTH 2014; 53:46-55. [PMID: 22434576 PMCID: PMC3929030 DOI: 10.1007/s10943-012-9586-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Shintoism, Buddhism, and Qi, which advocate the unity of mind and body, have contributed to the Japanese philosophy of life. The practice of psychosomatic medicine emphasizes the connection between mind and body and combines the psychotherapies (directed at the mind) and relaxation techniques (directed at the body), to achieve stress management. Participation in religious activities such as preaching, praying, meditating, and practicing Zen can also elicit relaxation responses. Thus, it is time for traditional religions to play an active role in helping those seeking psychological stability after the Great East Japan Earthquake and the ongoing crisis related to the nuclear accident in Fukushima, Japan, to maintain a healthy mind-body relationship.
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Affiliation(s)
- Mutsuhiro Nakao
- Division of Psychosomatic Medicine, Teikyo University Hospital, Teikyo University School of Medicine, 2-11-1, Kaga, Itabashi, Tokyo, 173-8605, Japan,
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Kretchy IA, Owusu-Daaku FT, Danquah S. Locus of control and anti-hypertensive medication adherence in Ghana. Pan Afr Med J 2014; 17 Suppl 1:13. [PMID: 24624246 PMCID: PMC3946225 DOI: 10.11694/pamj.supp.2014.17.1.3433] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 12/09/2013] [Indexed: 11/29/2022] Open
Abstract
Introduction Medication non-adherence is a major public health problem in Ghana. Locus of control (LoC) may influence adherence to medication. In this study we examine the association between locus orientation and adherence to hypertensive medication among adult patients. We also take into account the role of medication side effects. Methods We conducted a hospital-based cross-sectional study involving two tertiary hospitals in southern and northern Ghana. Data were collected from 400 hypertensive patients using a structured questionnaire. We gathered information on patient’s sociodemographic characteristics, health LoC, side effects of anti-hypertensive medication and adherence to anti-hypertensive medication. Results Participants exhibited features of mixed LoC (both internal and external) usually referred to as bi-local expectancy. However, orientation was skewed towards external LoC. Females were marginally more likely than males to have an internal LoC. Education was associated with a greater likelihood of internal LoC. While most patients (93.3%) poorly adhered to antihypertensive medications, logistic regression model revealed that non-adherence was significantly associated with low internal LoC, medication side effects and the combined effect of medication side effects and external LoC. Conclusion Medication non-adherence, experiences of medication side effects and LoC are associated. Multifaceted intervention programmes highlighting personality characteristics like LoC may improve anti-hypertensive medication adherence.
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Affiliation(s)
- Irene Akwo Kretchy
- Department of Clinical and Social Pharmacy, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Ghana ; Department of Pharmacy Practice and Clinical Pharmacy, University of Ghana School of Pharmacy, College of Health Sciences, Ghana
| | - Frances Thelma Owusu-Daaku
- Department of Clinical and Social Pharmacy, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Ghana
| | - Samuel Danquah
- Department of Psychology, University of Ghana, Legon, Ghana
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Pagnini F, Manzoni GM, Castelnuovo G, Molinari E. A brief literature review about relaxation therapy and anxiety. BODY MOVEMENT AND DANCE IN PSYCHOTHERAPY 2013. [DOI: 10.1080/17432979.2012.750248] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Brook RD, Appel LJ, Rubenfire M, Ogedegbe G, Bisognano JD, Elliott WJ, Fuchs FD, Hughes JW, Lackland DT, Staffileno BA, Townsend RR, Rajagopalan S. Beyond medications and diet: alternative approaches to lowering blood pressure: a scientific statement from the american heart association. Hypertension 2013; 61:1360-83. [PMID: 23608661 DOI: 10.1161/hyp.0b013e318293645f] [Citation(s) in RCA: 359] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Many antihypertensive medications and lifestyle changes are proven to reduce blood pressure. Over the past few decades, numerous additional modalities have been evaluated in regard to their potential blood pressure-lowering abilities. However, these nondietary, nondrug treatments, collectively called alternative approaches, have generally undergone fewer and less rigorous trials. This American Heart Association scientific statement aims to summarize the blood pressure-lowering efficacy of several alternative approaches and to provide a class of recommendation for their implementation in clinical practice based on the available level of evidence from the published literature. Among behavioral therapies, Transcendental Meditation (Class IIB, Level of Evidence B), other meditation techniques (Class III, Level of Evidence C), yoga (Class III, Level of Evidence C), other relaxation therapies (Class III, Level of Evidence B), and biofeedback approaches (Class IIB, Level of Evidence B) generally had modest, mixed, or no consistent evidence demonstrating their efficacy. Between the noninvasive procedures and devices evaluated, device-guided breathing (Class IIA, Level of Evidence B) had greater support than acupuncture (Class III, Level of Evidence B). Exercise-based regimens, including aerobic (Class I, Level of Evidence A), dynamic resistance (Class IIA, Level of Evidence B), and isometric handgrip (Class IIB, Level of Evidence C) modalities, had relatively stronger supporting evidence. It is the consensus of the writing group that it is reasonable for all individuals with blood pressure levels >120/80 mm Hg to consider trials of alternative approaches as adjuvant methods to help lower blood pressure when clinically appropriate. A suggested management algorithm is provided, along with recommendations for prioritizing the use of the individual approaches in clinical practice based on their level of evidence for blood pressure lowering, risk-to-benefit ratio, potential ancillary health benefits, and practicality in a real-world setting. Finally, recommendations for future research priorities are outlined.
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Biofeedback-assisted cardiovascular control in hypertensives exposed to emotional stress: a pilot study. Appl Psychophysiol Biofeedback 2011; 36:185-92. [PMID: 21656149 DOI: 10.1007/s10484-011-9160-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The study was aimed at examining the effect of a short Heart Rate-Biofeedback (HR-BF) protocol on systolic (SBP) and diastolic (DBP) blood pressure levels and BP emotional reactivity. Twenty-four unmedicated outpatients with pre- and stage 1 hypertension, were randomly assigned to active treatment (BF-Training) or control (BP-Monitoring) group. Subjects in BF-Training Group underwent four BF sessions. Guided imagery of stressful events was introduced during sessions 3 and 4. Control participants self-monitored their BP at home for 4 weeks. Subjects in both groups performed an emotional Speech Test before and after the training (or monitoring) period. SBP and mean arterial pressure responses to the emotional Speech Test were significantly smaller after the BF-training than the BP-monitoring. Moreover, clinic SBP and DBP were significantly reduced by about 10 mmHg in BF-Training Group, whereas they remained unchanged in control group. Self-monitored BP decreased significantly in the active treatment group and not in control group. A short BF-training, including guided imagery of stressful events, was effective in reducing BP reactions to a psychosocial stressor. BP measured in the clinic, and self-monitored at home were also significantly reduced in the BF-Training Group. HR-BF appears to be a suitable intervention for hypertensive patients, mostly when BP increase is associated with emotional activation.
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Wang SZ, Li S, Xu XY, Lin GP, Shao L, Zhao Y, Wang TH. Effect of slow abdominal breathing combined with biofeedback on blood pressure and heart rate variability in prehypertension. J Altern Complement Med 2011; 16:1039-45. [PMID: 20954960 DOI: 10.1089/acm.2009.0577] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE Prehypertension is a new category designated by the Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC7) in 2003. Managing prehypertension with nonpharmacological intervention is possibly beneficial to the prevention of hypertension. In this study, we observed the effect of slow abdominal breathing combined with electromyographic (EMG) biofeedback training on blood pressure (BP) in prehypertensives and assessed the changes of heart rate variability (HRV) in order to find an optional intervention to prevent hypertension and acquire some experimental data to clarify the underlying neural mechanism. METHODS Twenty-two (22) postmenopausal women with prehypertension were randomly assigned to either the experiment group or the control group. The experiment group performed 10 sessions of slow abdominal breathing (six cycles/min) combined with frontal electromyographic (EMG) biofeedback training and daily home practice, while the control group only performed slow abdominal breathing and daily home practice. BP and HRV (including R-R interval and standard deviation of the normal-normal intervals [SDNN]) were measured. RESULTS Participants with prehypertension could lower their systolic blood pressure (SBP) 8.4 mm Hg (p < 0.001) and diastolic blood pressure (DBP) 3.9 mm Hg (p < 0.05) using slow abdominal breathing combined with EMG biofeedback. The slow abdominal breathing also significantly decreased the SBP 4.3 mm Hg (p < 0.05), while it had no effect on the DBP (p > 0.05). Repeated-measures analyses showed that the biofeedback group + abdominal respiratory group (AB+BF) training was more effective in lowering the BP than the slow breathing (p < 0.05). Compared with the control group, the R-R interval increased significantly during the training in the AB+BF group (p < 0.05). The SDNN increased remarkably in both groups during the training (p < 0.05). CONCLUSIONS Slow abdominal breathing combined with EMG biofeedback is an effective intervention to manage prehypertension. The possible mechanism is that slow abdominal breathing combined with EMG biofeedback could reduce sympathetic activity and meanwhile could enhance vagal activity.
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Affiliation(s)
- Shu-Zhen Wang
- Department of Physiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, People's Republic of China
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Nolan RP, Floras JS, Harvey PJ, Kamath MV, Picton PE, Chessex C, Hiscock N, Powell J, Catt M, Hendrickx H, Talbot D, Chen MH. Behavioral Neurocardiac Training in Hypertension. Hypertension 2010; 55:1033-9. [DOI: 10.1161/hypertensionaha.109.146233] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Robert P. Nolan
- From the Division of Cardiology (R.P.N., J.S.F., P.J.H., C.C.), University Health Network and Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Departments of Medicine and Electrical and Computer Engineering (M.V.K.), McMaster University, Hamilton, Ontario, Canada; Unilever Corporate Research Biosciences (N.H., J.P., M.C., H.H., D.T.), Bedford, United Kingdom; University Health Network (M.H.C.), Toronto, Ontario, Canada
| | - John S. Floras
- From the Division of Cardiology (R.P.N., J.S.F., P.J.H., C.C.), University Health Network and Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Departments of Medicine and Electrical and Computer Engineering (M.V.K.), McMaster University, Hamilton, Ontario, Canada; Unilever Corporate Research Biosciences (N.H., J.P., M.C., H.H., D.T.), Bedford, United Kingdom; University Health Network (M.H.C.), Toronto, Ontario, Canada
| | - Paula J. Harvey
- From the Division of Cardiology (R.P.N., J.S.F., P.J.H., C.C.), University Health Network and Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Departments of Medicine and Electrical and Computer Engineering (M.V.K.), McMaster University, Hamilton, Ontario, Canada; Unilever Corporate Research Biosciences (N.H., J.P., M.C., H.H., D.T.), Bedford, United Kingdom; University Health Network (M.H.C.), Toronto, Ontario, Canada
| | - Markad V. Kamath
- From the Division of Cardiology (R.P.N., J.S.F., P.J.H., C.C.), University Health Network and Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Departments of Medicine and Electrical and Computer Engineering (M.V.K.), McMaster University, Hamilton, Ontario, Canada; Unilever Corporate Research Biosciences (N.H., J.P., M.C., H.H., D.T.), Bedford, United Kingdom; University Health Network (M.H.C.), Toronto, Ontario, Canada
| | - Peter E. Picton
- From the Division of Cardiology (R.P.N., J.S.F., P.J.H., C.C.), University Health Network and Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Departments of Medicine and Electrical and Computer Engineering (M.V.K.), McMaster University, Hamilton, Ontario, Canada; Unilever Corporate Research Biosciences (N.H., J.P., M.C., H.H., D.T.), Bedford, United Kingdom; University Health Network (M.H.C.), Toronto, Ontario, Canada
| | - Caroline Chessex
- From the Division of Cardiology (R.P.N., J.S.F., P.J.H., C.C.), University Health Network and Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Departments of Medicine and Electrical and Computer Engineering (M.V.K.), McMaster University, Hamilton, Ontario, Canada; Unilever Corporate Research Biosciences (N.H., J.P., M.C., H.H., D.T.), Bedford, United Kingdom; University Health Network (M.H.C.), Toronto, Ontario, Canada
| | - Natalie Hiscock
- From the Division of Cardiology (R.P.N., J.S.F., P.J.H., C.C.), University Health Network and Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Departments of Medicine and Electrical and Computer Engineering (M.V.K.), McMaster University, Hamilton, Ontario, Canada; Unilever Corporate Research Biosciences (N.H., J.P., M.C., H.H., D.T.), Bedford, United Kingdom; University Health Network (M.H.C.), Toronto, Ontario, Canada
| | - Jonathan Powell
- From the Division of Cardiology (R.P.N., J.S.F., P.J.H., C.C.), University Health Network and Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Departments of Medicine and Electrical and Computer Engineering (M.V.K.), McMaster University, Hamilton, Ontario, Canada; Unilever Corporate Research Biosciences (N.H., J.P., M.C., H.H., D.T.), Bedford, United Kingdom; University Health Network (M.H.C.), Toronto, Ontario, Canada
| | - Michael Catt
- From the Division of Cardiology (R.P.N., J.S.F., P.J.H., C.C.), University Health Network and Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Departments of Medicine and Electrical and Computer Engineering (M.V.K.), McMaster University, Hamilton, Ontario, Canada; Unilever Corporate Research Biosciences (N.H., J.P., M.C., H.H., D.T.), Bedford, United Kingdom; University Health Network (M.H.C.), Toronto, Ontario, Canada
| | - Hilde Hendrickx
- From the Division of Cardiology (R.P.N., J.S.F., P.J.H., C.C.), University Health Network and Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Departments of Medicine and Electrical and Computer Engineering (M.V.K.), McMaster University, Hamilton, Ontario, Canada; Unilever Corporate Research Biosciences (N.H., J.P., M.C., H.H., D.T.), Bedford, United Kingdom; University Health Network (M.H.C.), Toronto, Ontario, Canada
| | - Duncan Talbot
- From the Division of Cardiology (R.P.N., J.S.F., P.J.H., C.C.), University Health Network and Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Departments of Medicine and Electrical and Computer Engineering (M.V.K.), McMaster University, Hamilton, Ontario, Canada; Unilever Corporate Research Biosciences (N.H., J.P., M.C., H.H., D.T.), Bedford, United Kingdom; University Health Network (M.H.C.), Toronto, Ontario, Canada
| | - Maggie H. Chen
- From the Division of Cardiology (R.P.N., J.S.F., P.J.H., C.C.), University Health Network and Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Departments of Medicine and Electrical and Computer Engineering (M.V.K.), McMaster University, Hamilton, Ontario, Canada; Unilever Corporate Research Biosciences (N.H., J.P., M.C., H.H., D.T.), Bedford, United Kingdom; University Health Network (M.H.C.), Toronto, Ontario, Canada
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Olsson EMG, El Alaoui S, Carlberg B, Carlbring P, Ghaderi A. Internet-Based Biofeedback-Assisted Relaxation Training in the Treatment of Hypertension: A Pilot Study. Appl Psychophysiol Biofeedback 2009; 35:163-70. [DOI: 10.1007/s10484-009-9126-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Nakao M. [Series: mind/body medicine in occupational health. Session 1. Mind/body medicine: summary of basic knowledge]. SANGYO EISEIGAKU ZASSHI = JOURNAL OF OCCUPATIONAL HEALTH 2009; 52:45-50. [PMID: 19942819 DOI: 10.1539/sangyoeisei.rensai9001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Affiliation(s)
- Mutsuhiro Nakao
- Department of Hygiene and Public Health, Teikyo University School of Medicine & Division of Psychosomatic Medicine, Teikyo University Hospital, Itabashi, Tokyo, Japan.
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Abstract
Cytokine production is necessary to protect against pathogens and promote tissue repair, but excessive cytokine release can lead to systemic inflammation, organ failure and death. Inflammatory responses are finely regulated to effectively guard from noxious stimuli. The central nervous system interacts dynamically with the immune system to modulate inflammation through humoral and neural pathways. The effect of glucocorticoids and other humoral mediators on inflammatory responses has been studied extensively in the past decades. In contrast, neural control of inflammation has only been recently described. We summarize autonomic regulation of local and systemic inflammation through the 'cholinergic anti-inflammatory pathway', a mechanism consisting of the vagus nerve and its major neurotransmitter, acetylcholine, a process dependent on the nicotinic acetylcholine receptor alpha7 subunit. We recapitulate additional sources of acetylcholine and their contribution to the inflammatory response, as well as acetylcholine regulation by acetylcholinesterase as a means to attenuate inflammation. We discuss potential therapeutic applications to treat diseases characterized by acute or chronic inflammation, including autoimmune diseases, and propose future research directions.
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Affiliation(s)
- M Rosas-Ballina
- The Feinstein Institute for Medical Research, North Shore-LIJ Health System, Manhasset, NY 11030, USA
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Relax, but is there rest for the blood pressure? J Hum Hypertens 2008; 22:807-8. [DOI: 10.1038/jhh.2008.66] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Rainforth MV, Schneider RH, Nidich SI, Gaylord-King C, Salerno JW, Anderson JW. Stress reduction programs in patients with elevated blood pressure: a systematic review and meta-analysis. Curr Hypertens Rep 2008; 9:520-8. [PMID: 18350109 DOI: 10.1007/s11906-007-0094-3] [Citation(s) in RCA: 160] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Substantial evidence indicates that psychosocial stress contributes to hypertension and cardiovascular disease (CVD). Previous meta-analyses of stress reduction and high blood pressure (BP) were outdated and/or methodologically limited. Therefore, we conducted an updated systematic review of the published literature and identified 107 studies on stress reduction and BP. Seventeen trials with 23 treatment comparisons and 960 participants with elevated BP met criteria for well-designed randomized controlled trials and were replicated within intervention categories. Meta-analysis was used to calculate BP changes for biofeedback, -0.8/-2.0 mm Hg (P = NS); relaxation-assisted biofeedback, +4.3/+2.4 mm Hg (P = NS); progressive muscle relaxation, -1.9/-1.4 mm Hg (P = NS); stress management training, -2.3/-1.3 mm (P = NS); and the Transcendental Meditation program, -5.0/-2.8 mm Hg (P = 0.002/0.02). Available evidence indicates that among stress reduction approaches, the Transcendental Meditation program is associated with significant reductions in BP. Related data suggest improvements in other CVD risk factors and clinical outcomes.
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Affiliation(s)
- Maxwell V Rainforth
- Institute for Natural Medicine and Prevention, Maharishi University of Management, 2100 Mansion Drive, Suite 211, Maharishi Vedic City, IA 52556, USA.
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Dickinson HO, Campbell F, Beyer FR, Nicolson DJ, Cook JV, Ford GA, Mason JM. Relaxation therapies for the management of primary hypertension in adults: a Cochrane review. J Hum Hypertens 2008; 22:809-20. [DOI: 10.1038/jhh.2008.65] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Dickinson HO, Campbell F, Beyer FR, Nicolson DJ, Cook JV, Ford GA, Mason JM. Relaxation therapies for the management of primary hypertension in adults. Cochrane Database Syst Rev 2008:CD004935. [PMID: 18254065 DOI: 10.1002/14651858.cd004935.pub2] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND Lifestyle interventions are often recommended as initial treatment for mild hypertension, but the efficacy of relaxation therapies is unclear. OBJECTIVES To evaluate the effects of relaxation therapies on cardiovascular outcomes and blood pressure in people with elevated blood pressure. SEARCH STRATEGY We searched the Cochrane Library, MEDLINE, EMBASE, Science Citation Index, ISI Proceedings, ClinicalTrials.gov, Current Controlled Trials and reference lists of systematic reviews, meta-analyses and randomised controlled trials (RCTs) included in the review. INCLUSION CRITERIA RCTs of a parallel design comparing relaxation therapies with no active treatment, or sham therapy; follow-up >/=8 weeks; participants over 18 years, with raised systolic blood pressure (SBP) >/=140 mmHg or diastolic blood pressure (DBP) >/=85 mmHg); SBP and DBP reported at end of follow-up. EXCLUSION CRITERIA participants were pregnant; participants received antihypertensive medication which changed during the trial. DATA COLLECTION AND ANALYSIS Two reviewers independently extracted data and assessed trial quality. Disagreements were resolved by discussion or a third reviewer. Random effects meta-analyses and sensitivity analyses were conducted. MAIN RESULTS 29 RCTs, with eight weeks to five years follow-up, met our inclusion criteria; four were excluded from the primary meta-analysis because of inadequate outcome data. The remaining 25 trials assessed 1,198 participants, but adequate randomisation was confirmed in only seven trials and concealment of allocation in only one. Only one trial reported deaths, heart attacks and strokes (one of each). Meta-analysis indicated that relaxation resulted in small, statistically significant reductions in SBP (mean difference: -5.5 mmHg, 95% CI: -8.2 to -2.8, I2 =72%) and DBP (mean difference: -3.5 mmHg, 95% CI: -5.3 to -1.6, I2 =75%) compared to control. The substantial heterogeneity between trials was not explained by duration of follow-up, type of control, type of relaxation therapy or baseline blood pressure. The nine trials that reported blinding of outcome assessors found a non-significant net reduction in blood pressure (SBP mean difference: -3.2 mmHg, 95% CI: -7.7 to 1.4, I(2) =69%) associated with relaxation. The 15 trials comparing relaxation with sham therapy likewise found a non-significant reduction in blood pressure (SBP mean difference: -3.5 mmHg, 95% CI: -7.1 to 0.2, I(2) =63%). AUTHORS' CONCLUSIONS In view of the poor quality of included trials and unexplained variation between trials, the evidence in favour of causal association between relaxation and blood pressure reduction is weak. Some of the apparent benefit of relaxation was probably due to aspects of treatment unrelated to relaxation.
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Affiliation(s)
- Heather O Dickinson
- University of Newcastle, Institute of Health and Society, 21 Claremont Place, Newcastle upon Tyne, Tyne & Wear, UK, NE2 4AA.
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Guo X, Zhou B, Nishimura T, Teramukai S, Fukushima M. Clinical Effect of Qigong Practice on Essential Hypertension: A Meta-Analysis of Randomized Controlled Trials. J Altern Complement Med 2008; 14:27-37. [DOI: 10.1089/acm.2007.7213] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Xinfeng Guo
- National DME Training Center, Guangzhou University of Traditional Chinese Medicine, Guangzhou, People's Republic of China
| | - Bin Zhou
- Division of Clinical Trial Design and Management, Translational Research Center, Kyoto University Hospital, Kyoto, Japan
| | - Tsutomu Nishimura
- Division of Clinical Trial Design and Management, Translational Research Center, Kyoto University Hospital, Kyoto, Japan
| | - Satoshi Teramukai
- Division of Clinical Trial Design and Management, Translational Research Center, Kyoto University Hospital, Kyoto, Japan
| | - Masanori Fukushima
- Division of Clinical Trial Design and Management, Translational Research Center, Kyoto University Hospital, Kyoto, Japan
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Abstract
To secure the role of behavioral medicine in health care, researchers continue to improve the quality of their outcome studies. Despite the availability of guidelines for designing high quality clinical trials, however, we have noted two, unfortunately common, flaws in behavioral medicine outcome research that undermine these efforts. The first issue is that researchers recruit medical patients whose scores on psychological target measures are not elevated at pretest. Data are presented from quantitative reviews of cardiovascular and cancer populations to illustrate the impact of this protocol decision. It is demonstrated how magnitude of change and corresponding statistical power are greatly reduced when patients with few problems are enrolled. The second issue pertains to the failure of researchers to measure psychological change when the actual model to be tested is a mediational model such that successful treatment of psychological distress is presumed to account for good long-term health outcomes. Such lack of attention to protocol design can result in misinterpretation of obtained effects and can lead to premature dismissal of psychological treatment opportunities for physical disease. We suggest how these flaws can be avoided in the protocol design stage.
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Xu XY, Gao J, Ling D, Wang TH. Biofeedback treatment of prehypertension: analyses of efficacy, heart rate variability and EEG approximate entropy. J Hum Hypertens 2007; 21:973-5. [PMID: 17541386 DOI: 10.1038/sj.jhh.1002237] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Abstract
Evidence is reviewed for the efficacy of behavioral treatments for hypertension. The format chosen here is a review of reviews given that numerous consensus committee reports and quantitative reviews on the topic have been published. Extensive evidence from over 100 randomized controlled trials indicates that behavioral treatments reduce blood pressure (BP) to a modest degree, and this change is greater than what is seen in wait-list or other inactive controls. Effect sizes are quite variable. The observed BP reductions are much greater when BP levels were high at pre-test, and behavioral studies tend to underestimate possible benefits because of floor effects in their protocols. Blood pressure measured in the office may be confounded with measurement habituation. Multi-component, individualized psychological treatments lead to greater BP changes than do single-component treatments. Among biofeedback treatments, thermal feedback and electrodermal activity feedback fare better than EMG or direct BP feedback, which tend to produce null effects. There continues to be a scarcity of strong protocols that properly control for floor effects and potential measurement confounds.
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Affiliation(s)
- Wolfgang Linden
- Psychology, The University of British Columbia, 2136 West Mall, Vancouver, BC, Canada, V6T 1Z4.
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Abstract
Stress factors, especially high levels of occupational stress, are associated with hypertension. Several so-called psychological techniques have been applied to hypertension: biofeedback, relaxation techniques (Schultz' autogenic training, Jacobson's progressive relaxation), transcendental meditation, and cognitive behavioral techniques for stress management. Randomized studies show that the best results come from cognitive behavioral methods, whether or not they include relaxation techniques. Other forms of psychotherapy (such as psychoanalysis) may be useful, although their benefits for blood pressure have not been tested in controlled trials. Patients should be informed about the personal benefits they may obtain from psychological treatment. Indications are hyperreactivity to stress, high levels of occupational stress, and difficulty in tolerating or complying with antihypertensive drugs.
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Nakao M, Nomura K, Karita K, Nishikitani M, Yano E. Relationship between brachial-ankle pulse wave velocity and heart rate variability in young Japanese men. Hypertens Res 2005; 27:925-31. [PMID: 15894832 DOI: 10.1291/hypres.27.925] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study examined the relationship between arterial stiffness and autonomic nervous function in a young population. A cross-sectional study was conducted on 382 Japanese males, aged 24 to 39 years, who worked at the same information service company. Brachial-ankle pulse wave velocity (baPWV) was measured using an automatic waveform analyzer, and the spectral power of heart rate variability in the low frequency (LF: 0.04-0.15 Hz) and the high frequency (HF: 0.15-0.40 Hz) band was evaluated by the maximum entropy method. LF/HF and HF were used as the indicators of sympathetic and parasympathetic nervous activity, respectively. Psycho-hormonal responses were examined by the Profile of Mood State (tension-anxiety and anger-hostility scales) and Hamilton's Depression Scale with serum cortisol and catecholamine levels. In a univariate analysis, baPWV was positively associated with the following variables (all p <0.05): LF/HF, age, body mass index, systolic and diastolic blood pressures, heart rate, serum total cholesterol and triglycerides, blood glucose, and plasma cortisol and noradrenaline. Multiple regression analysis indicated that LF/HF was an independent predictor of baPWV (p <0.05), after controlling for significant effects of age, systolic blood pressure, and plasma noradrenaline levels. There was no significant effect of HF on baPWV in this multivariate analysis. Neither mood state nor health-related lifestyle factors such as smoking were significant. It was suggested that baPWV is closely associated with sympathetic nervous activity in young men.
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Affiliation(s)
- Mutsuhiro Nakao
- Department of Hygiene and Public Health, Teikyo University School of Medicine, Kaga, Tokyo, Japan.
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Yu H, Lin S, Liu G, Zhang Y, Deng C, Ma W. T1198C Polymorphism of the Angiotensinogen Gene and Antihypertensive Response to Angiotensin-Converting Enzyme Inhibitors. Hypertens Res 2005; 28:981-6. [PMID: 16671337 DOI: 10.1291/hypres.28.981] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study examined the association between T1198C polymorphism of the angiotensinogen (AGT) gene and the blood pressure response to ACE inhibitors in a Chinese hypertensive cohort. After a 2-week single-blind placebo run-in period, benazepril (10-20 mg/day) or imidapril (5-10 mg/day) was administered for 6 weeks to 509 patients with mild-to-moderate essential hypertension. Polymerase chain reaction combined with restriction enzyme digestion was used to detect the polymorphism, and the patients were classified as having the TT, TC, or CC genotype. The achieved changes in systolic and diastolic blood pressure (SBP and DBP) were analyzed to determine their association with genotypes at the AGT gene locus. In the total 509 patients, the TT genotype was observed in 44 patients (8.7%), the TC genotype in 214 patients (42.0%), and the CC genotype in 251 patients (49.3%). The SBP reductions in patients with the TT genotype, TC genotype, and CC genotype were -15.3+/-12.7 mmHg, -14.0+/-12.7 mmHg, and -14.4+/-12.4 mmHg, respectively (p=0.809). The DBP reductions in patients with the TT genotype, TC genotype, and CC genotype were -8.5+/-8.1 mmHg, -8.3+/-7.5 mmHg, and -8.9+/-6.6 mmHg, respectively (p=0.638). There were no significant differences in the changes in SBP or DBP after treatment among the three genotype groups. In conclusion, these results suggest that the AGT genotype does not predict the blood pressure-lowering response to antihypertensive treatment with ACE inhibitors in Chinese hypertensive patients.
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Affiliation(s)
- Huimin Yu
- Department of Cardiology, Guangdong Provincial People's Hospital and Guangdong Cardiovascular Institute, Guangzhou, P.R. China
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Nicolson DJ, Dickinson HO, Campbell F, Cook J, Renton F, Ford GA, Mason J. Relaxation therapies for the management of essential hypertension in adults. THE COCHRANE DATABASE OF SYSTEMATIC REVIEWS 2004. [DOI: 10.1002/14651858.cd004935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Semmer NK, Grebner S, Elfering A. BEYOND SELF-REPORT: USING OBSERVATIONAL, PHYSIOLOGICAL, AND SITUATION-BASED MEASURES IN RESEARCH ON OCCUPATIONAL STRESS. RESEARCH IN OCCUPATIONAL STRESS AND WELL-BEING 2004. [DOI: 10.1016/s1479-3555(03)03006-3] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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