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This Controlled Randomized Clinical Trial aimed at determining the effectiveness of a modified RR intervention in reducing post-operative pain and psychological symptoms in patients undergoing surgery intervention.
Researches hypothesized that compared to controls patients undergoing modified RR intervention were characterized by
Moreover, researches hypothesized that (4) these effects were maintained over time.
Full description
A Controlled Randomized Clinical Trial of a RR intervention for surgical patients was conducted in the SS. Antonio e Biagio e Cesare Arrigo Hospital, Alessandria, Italy.
Fifty-six patients were treated with the clinical RR intervention, while 62 patients were recruited as controls.
Variables were assessed through an ad hoc questionnaire and a pool of self-report questionnaires validated for the Italian population: the Toronto Alexithymia Scale (TAS-20), the Hospital Anxiety and Depression Scale (HADS), the Impact of Event Scale - Revised (IES-R), the Numeric Rating Scale (NRS), and the Emotion Thermometer (ET).
The TAS-20 is a frequently used 20-items self-report measure of alexithymia. A score ≥ 61 is considered to be indicative of alexithymia, whereas scores between 51 and 60 indicate borderline alexithymia. It has a 3-factor structure: Difficulty in Identifying Feelings (TAS-DIF); Difficulty in Describing Feelings (TAS-DDF), and Externally Oriented Thinking (TAS-EOT).
The HADS is a brief, reliable self-report measure used to assess anxiety and depression in hospitalized and ambulatory medical patients, as well as in primary care and research. It consists of 7 items for anxiety (HADS-A) and 7 for depression (HADS-D). Scores > 8 in each subscale are indicative of clinically relevant anxiety and depression, respectively.
The IES-R is a widely used 22-items self-report measure of subjective distress caused by traumatic events. It considers three independent dimensions: intrusion, avoidance, and hyper-arousal.
The NRS is a unidimensional measure of pain intensity in adults. It is a segmented numeric version of the visual analog scale (VAS), in which respondents select the number (0-10 integers) that best reflects the intensity of their pain. The common format is a horizontal bar or line.
The ET is a simple, self-report measure of four emotion domains (distress, anxiety, depression, and anger) and one non-emotion domain (need for help). Respondents have to rate each dimension on a vertical visual analogue scale (thermometer), with the anchors 0 and 10, to indicate which level of distress they experienced over the previous week.
Outcome measures were administered at 4 time-points:
T0: Baseline (3 months before the surgical intervention).
T1: The morning before the surgical intervention.
T2: At discharge, assessed up to 10 days.
T3: 3 months after the surgical intervention.
Subjects in the RR group underwent the clinical interventions between T0 and T1, while the controls underwent standard care.
Ethics
The study was reviewed and approved by the Institutional Review Board (IRB) of the SS. Antonio e Biagio e Cesare Arrigo Hospital, Alessandria, Italy. All participants gave informed written consent before entering the study. All research procedures were conducted in accordance with the ethical standards of the committees responsible for human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008.
Participants
Patients were recruited between January 2015 and June 2017.
Patients in the Departments of Vascular Surgery, General Surgery and Neurosurgery were included, considering their similarities for what concerns surgical impact, recovery, and post-recovery expectation. Expected surgical patients in the recruitment period were computed considering the prevalent frequency of each specific intervention in every Department:
With an expected population of 570 surgical patients in the recruitment period, an a priori power analysis conducted with G*Power (Faul et al., 2007) indicated that a total sample size of 82 participants was required (α = 0.05; 1-β = 0.80; d = 0.25).
Randomization and blinding:
A block randomization method was used with block size of 4, stratified by age, gender and clinical conditions. A series of numbers was generated in advance using a computer program. Following completion of the baseline measures, a research assistant assigned a study group to each participant, following the series generated by the computers. This research assistant as well as the personnel involved in the RR inspired intervention were aware of the patient-group assignment. Remaining study personnel were blind to subject's group assignment. In addition, for blinded purposes, the study participants were instructed not to discuss the intervention with anyone.
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128 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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