Self Hypnotic Relaxation As An Adjunct To Local Anesthesia During Large Core Breast Biopsy
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 入组人数
- 240
- 试验地点
- 2
- 主要终点
- Anxiety Ratings at Specified Time Point During the Procedure
研究概览
简要总结
Percutaneous large core image-guided breast biopsy is a well established tool in diagnosing breast cancer, but the associated anxiety and pain can tax the coping mechanism of even well functioning individuals. Unabated stress during an invasive procedure not only interferes with smooth progression of the ongoing procedure, but can also have deleterious effects when patients need additional procedures and dread recurrent medical traumatization. The long-term objective of this research is to provide patients with a simple coping strategy at the vulnerable time of large core biopsy in the hope that this behavioral intervention will carry over to recovery and future medical procedures. In the largest prospective randomized study of its kind, the researchers showed that a self-hypnotic intervention during percutaneous, image-guided vascular and renal interventions resulted in less pain and anxiety, greater hemodynamic stability, and fewer procedure interruptions. The positive effects of the short initial hypnotic intervention, which was structured in the procedure room, became more pronounced the longer the procedure lasted and carried over into the immediate post-procedure recovery. The investigators therefore challenge the current paradigms that long-lasting effects require intensive presurgical preparation.
详细描述
Large core image-guided breast biopsy is a well established tool for diagnosing breast cancer. Using ultrasound or X-ray guidance, a large hollow needle is inserted through the skin into the breast and abnormal tissue is removed for diagnosis. Although this procedure is much less invasive than open surgery, it can induce pain and anxiety that can tax the coping mechanism of even the highest functioning individuals. Unrelieved stress during a medical procedure not only interferes with smooth progression of the ongoing procedure, but can also have deleterious effects when patients need additional procedures and feel dread in anticipation. The long-term objective of this research is to provide patients with a simple coping strategy at the time of large core biopsy, when they need it most. The hope is that this newly learned ability to handle distress will carry over to recovery and to future medical procedures. In a prior clinical trial (Lancet 2000:335:1486-1489), the largest prospective randomized study of its kind, the researchers showed that a self-hypnotic intervention during image-guided interventions of the blood vessels and the kidneys resulted in less pain and anxiety, fewer worrisome increases and decreases of blood pressure and heart rate, and fewer procedure interruptions. The positive effects of the short initial hypnotic intervention, which was structured in the procedure room, became more pronounced the longer the procedure lasted and carried over into the immediate post-procedure recovery. Based on these past findings, the researchers therefore predict to show evidence contrary to the current thinking that long-lasting effects require intensive presurgical preparation.
The researchers propose to pursue three interrelated specific aims:
- (Aim 1): Determine the acute effects of self-hypnotic relaxation on pain and anxiety. Strictly defined methods of self-hypnotic relaxation (Group I), will be tested against empathic attention (Group II) and the routine standard of care (Group III) in a prospective randomized study with 240 patients undergoing large core breast biopsy. The impact of the treatment will be validated by comparing during the procedure among groups subjective measures of pain and anxiety as well as objective physiologic indicators of pain and anxiety (frequency of significant increases in heart rate and blood pressure).
- (Aim 2): Determine the delayed effects of self-hypnotic relaxation. Patients' levels of pain, anxiety, and stress will be recorded through days 1-5 after the biopsy and compared among groups. Stress levels measurements will be based on an objective test (the amount of the stress hormone cortisol in the patient's saliva).
- (Aim 3): Determine the effect of the initial self-hypnotic relaxation on distress with upcoming subsequent surgery in women with proven breast cancer. When patients have to return for surgery because their biopsy revealed malignant cells, they will be given questionnaires assessing their degree of perceived stress , anxiety, and preoccupation with their upcoming surgery. Comparison among groups will show the durability of the initial hypnotic intervention.
The researchers hypothesize that:
- Self-hypnotic relaxation reduces pain and anxiety during large core breast biopsy
- Self-hypnotic relaxation at the time of biopsy reduces post-biopsy stress
- Teaching patients coping skills at the critical time of the breast biopsy reduces the patients' distress with upcoming breast surgery.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients presenting for large core breast biopsy in the Radiology Department at the Beth Israel Deaconess Medical Center Boston.
排除标准
- •Patients are excluded if :
- •They are unable to give informed consent, or pass screening for impaired mental function or psychosis.
- •They are unable to hear or understand English.
结局指标
主要结局
Anxiety Ratings at Specified Time Point During the Procedure
时间窗: 110 min
Self-reported anxiety on a scale of 0-10 with 0=no anxiety and 10=worst possible anxiety
Time Trends of Anxiety Experience
时间窗: 0-110 min
Ordinal regression analysis looks at data as a series of possible splits of patient responses and assesses the odds of experiencing a value at or above as compared to the split; e.g. the probability of experiencing self-reported anxiety scores of 0 vs 1-10; 0-2 vs 3-10 ; 0-4 vs 5-10 etc with anxiety scores reported between 0=no anxiety and 10=worst possible anxiety. The summary analysis with logit slopes gives in the time trend estimate the cumulative probabilities of the response categories over the variable N=procedure time (min). Positive slopes indicate increasing scores above the split point over time, negative slopes indicate decreasing scores, and flat lines no significant change. In the proportional odds model, an encompassing slope - a probability function of linear trend - is generated that not only applies to the logit forms of the individual splits but to the logic forms of graphs that portray all other splits. The resultant slopes then facilitate comparison among groups.
Pain Ratings at Specified Time Point During the Procedure
时间窗: 110 min
Self-reported pain on a scale of 0-10 with 0=no pain at all and 10=worst possible pain
Time Trends of Pain Experience
时间窗: 0-110 min
Ordinal regression analysis looks at data as a series of possible splits of patient responses and assesses the odds of experiencing a value at or above as compared to the split; e.g. the probability of experiencing self-reported pain scores of 0 vs 1-10; 0-2 vs 3-10 ; 0-4 vs 5-10 etc with pain scores reported between 0=no pain, and 10=worst possible pain. The summary analysis with logit slopes gives in the time trend estimate the cumulative probabilities of the response categories over the variable N=procedure time (min). Positive slopes indicate increasing scores above the split point over time, negative slopes indicate decreasing scores, and flat lines no significant change. In the proportional odds model, an encompassing slope - a probability function of linear trend - is generated that not only applies to the logit forms of the individual splits but to the logic forms of graphs that portray all other splits. The resultant slopes then facilitate comparison among groups.
次要结局
- Salivary Cortisol Secretion(Patients were followed for the 5 days following their breast biopsy)
- Impact of Event Scale (IES-15)(Patients were followed for up to 3 weeks after their biopsy until the time of their surgery)
研究者
Elvira Lang
Former Associate Professor of Radiology
Beth Israel Deaconess Medical Center