The Effects of Stress Reduction on Surgical Wound Healing

University of Auckland, New Zealand

Status: Completed

Conditions: Surgery; Wound Healing; Stress

Treatments: Behavioral: Stress reduction intervention

Study type: Interventional

Funder types: Other

Identifiers

NCT00633737

Wound healing study

Details and patient eligibility

About

The purpose of this study is to investigate whether a stress reduction intervention prior to surgery can improve wound healing and recovery.The investigators hypothesise that patients who receive a psychological stress reduction intervention prior to surgery will report lower stress and higher perceived control, have lower stress hormones, better wound healing and better self-reported recovery than patients who receive standard care alone.

Full description

In previous prospective research, psychological stress has been shown to slow the healing of small superficial wounds and impair surgical healing. We will investigate whether a psychological intervention to reduce stress can improve surgical healing.

Ninety patients undergoing elective laparoscopic cholecystectomy will be randomised to receive either standard care or a brief pre-surgical psychological intervention plus standard care. Patients will complete a pre-surgical questionnaire to assess stress, anxiety, depression, illness perceptions and current health, at least 3 days prior to surgery. Then the intervention will be delivered. A second questionnaire on the morning of surgery will reassess stress, anxiety and illness perceptions to see whether the intervention has reduced stress and increased control perceptions. Plasma catecholamines and salivary cortisol will be tested to assess the effectiveness of the intervention in reducing stress-related hormones and to investigate their role in wound healing. During surgery 2 small expanded polytetrafluroethylene tubes will be inserted in the wound, which will be removed after 7 days. Wound healing will be assessed by hydroxyproline and total protein deposition in the tubes, as well as by the presence of wound infection. Patients' post-surgical recovery, including pain and fatigue, will also be assessed. If this brief psychological intervention can improve wound healing and aid recovery, it would provide a simple strategy to improve outcomes in surgery.

Enrollment: 70 patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria:

• planned elective laparoscopic cholecystectomy at Manukau Surgical Centre
• able to understand English

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Single Group Assignment

Masking: Double Blind

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70 participants in 2 patient groups

1

Experimental group

Description:

Stress reduction intervention

Treatment:

Behavioral: Stress reduction intervention

2

No Intervention group

Description:

Standard care