Randomized Controlled Trial Comparing Liposomal to Plain Bupivacaine in the Transversus Abdominis Plane for DIEP Flap Breast Reconstruction

BACKGROUND

Pain control after autologous breast reconstruction is important for patient satisfaction and early recovery. Transversus abdominis plane (TAP) blocks are commonly used as part of an enhanced recovery after surgery (ERAS) pathway for breast reconstruction. It is uncertain whether liposomal bupivacaine used in TAP blocks offers additional advantages. This study aimed to compare the efficacy of liposomal bupivacaine versus plain bupivacaine for patients undergoing deep inferior epigastric perforator flap reconstruction.

METHODS

This double-blinded randomized controlled trial studied patients undergoing abdominally based autologous breast reconstruction between June of 2019 and August of 2020. Subjects were randomly assigned liposomal or plain bupivacaine, performed using ultrasound-guided TAP block technique. All patients were managed according to an ERAS protocol. Primary outcomes were postoperative narcotic analgesia required, measured in oral morphine equivalents from postoperative days 1 to 7. Secondary outcomes included numeric pain scale score on postoperative days 1 to 7, nonnarcotic pain medication use, time to first narcotic use, return of bowel function, and length of stay.

RESULTS

Sixty patients were enrolled: 30 received liposomal bupivacaine and 30 received plain bupivacaine. There were no significant differences in demographics, daily oral morphine equivalent narcotic use, nonnarcotic pain medication use, time to narcotic use, numeric pain scale score, time to bowel function, or length of stay.

CONCLUSION

Liposomal bupivacaine does not confer advantages over plain bupivacaine when used in TAP blocks for abdominally based microvascular breast reconstruction in patients under ERAS protocols and multimodal approaches for pain control.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Therapeutic, I.

Significant discrepancies exist between clinician assessment and patient self-assessment of functional capacity by validated scoring tools during preoperative evaluation

Background

Preoperative assessment of functional capacity is necessary to direct decisions regarding cardiac evaluation and may help identify patients at high risk for perioperative complications. Patient self-triage regarding functional capacity could be useful for discerning which patients benefit from a clinician evaluation at a Preoperative Evaluation Center prior to the day of surgery. We evaluated the feasibility of preoperative, patient self-triage regarding functional capacity.

Methods

Patients were recruited immediately prior to their preoperative evaluation. Study participants completed electronic versions of the Duke Activity Status Index (DASI) and the Patient-Reported Outcomes Measurement System (PROMIS)–Short Form 12a–Physical Function. DASI and PROMIS questionnaire responses were scored and evaluated for correlation with clinician assessments of functional capacity. Correlation was analyzed around the dichotomous outcome of <4 metabolic equivalents of task (METs) or ≥4 METs. Patients also evaluated the usability of the questionnaires.

Results

After IRB approval, 204 patients were enrolled and completed both DASI and PROMIS questionnaires. Clinicians assessed functional capacity at <4 METs for 109 patients (53.4 %) compared to 18 (8.8 %) patient self-assessments <4 METs as estimated by DASI. These results represent a significant discrepancy between assessments (Fisher’s exact, two-tailed P value <0.0001). The standard T-score of PROMIS estimates of functional capacity correlated with DASI estimates (R² 0.76). The mean and standard deviation for PROMIS T-scores were 43.3 and 9.86, respectively (mean 50.0; SD 10.0 for the general population).

Of the 203 patients who completed the entire study survey, 192 (94.6 %) stated that they did not require assistance from another person, and 187 (94 %) responded either “agree” or “strongly agree” to the DASI questionnaire being “easy to understand” and “easy to complete;” 186 (93 %) and 188 (94 %), respectively, responded similarly to the PROMIS questionnaire.

Conclusions

While both electronic questionnaires were easy to understand and complete for most study participants, there was a significant discrepancy between clinician assessments and patient self-assessments of functional capacity. Further study is needed to determine if either patient self-triage by means of activity questionnaires or clinician evaluation is valid and reliable in the preoperative setting.

Electronic supplementary material

The online version of this article (doi:10.1186/s13741-016-0041-4) contains supplementary material, which is available to authorized users.

Noncompliance in the inpatient administration of enoxaparin in conjunction with epidural or spinal anesthesia

Deep venous thrombosis is 1 of the most common postoperative complications resulting in significant mortality and morbidity in patients undergoing total hip and total knee arthroplasty. Research has shown that the effectiveness and safety of low-molecular-weight heparins depend on the timeliness of their administration, particularly when used in conjunction with spinal or epidural anesthesia, both of which are effective and safe treatment modalities for knee and hip arthroplasty. The focus of this study was to examine the compliance with current protocols in the administration of enoxaparin (Lovenox) to patients who had undergone total joint arthroplasty. We reviewed the perioperative management of patients who had a total hip or total knee arthroplasty in which there was the combined use of epidural or spinal anesthesia and enoxaparin. Our results show a 52% (26 of 50) noncompliance rate in the administration of enoxaparin as compared with the published protocol for using this treatment modality safely and effectively.

The professional role for nurses in clinical trials

This article has examined the role of the nurse in clinical trials, particularly the clinical, administrative, and research roles. Components of each role and characteristics essential for the implementation of each role have been examined. The nursing role in clinical trials research is undergoing major transformation from the perception of the nurse as a data collector for medical research to the recognition of the nurse as an essential member of the research team with a multifaceted role. Miaskowski identifies two factors influencing the development of oncology nursing practice; scientific and technological advances and societal factors relating to the perception of cancer as a disease and changes in the nursing profession. Certainly it is recognized that progress in basic science research will lead to an increase in the complexity and number of clinical trials. Nurses have clearly implemented the roles necessary to be vital participants and have contributed to answering questions leading to improved treatments for the patients with cancer.

Development of the inventory of functional status-cancer

The purpose of this article is to report the development and psychometric testing of the Inventory of Functional Status-Cancer (IFS-CA). The IFS-CA was developed to measure functional status in women with cancer. The questionnaire includes four subscales measuring the extent to which the woman continues her usual household and family, social and community, personal care, and occupational activities. Content validity was established at 98.5%. Internal consistency reliability testing used a sample of 100 women receiving treatment for cancer. Internal consistency reliability using average correlations for the subscale item to subscale total scores ranged from 0.56 to 0.82. Subscale to total IFS-CA score correlations ranged from 0.73 to 0.92. Test-retest reliability used a sample of 17 women who had completed treatment for cancer. The coefficients ranged from 0.43 to 0.96 for the four subscales. Initial construct validity testing was accomplished by examination of subscale correlations and by comparing the functional status of women in active treatment for cancer with those who had completed treatment. The study's findings reveal content validity, internal consistency, test-retest reliability, and beginning construct validity; thus, they demonstrate strong evidence for further development and testing of the IFS-CA's construct validity.

Quality of life issues in patients with disseminated breast cancer

Over half the women treated for breast cancer will experience advanced disease, and issues related to quality of life are particularly important. This article has reviewed components of quality of life specific to women with advanced breast cancer following two clinical courses:those who develop a recurrence and those who present with advanced disease. It is clear that additional research is warranted on the quality of life in women with advanced breast cancer. Work to date has clearly indicated that the management of women with advanced disease requires the resources available from a multidisciplinary perspective. Efforts to manage advanced breast cancer must include both current medical therapies and attention to the critical factors associated with enhancing the quality of their lives. Of final concern is the relationship of social class to advanced disease. Following Freeman's recent outline of the agenda for the American Cancer Society, more attention must be given to people who are economically disadvantaged because cancer incidence and mortality are greater among poor people than among the affluent. It is possible that over 50% of women presenting with advanced cancer of the breast are economically disadvantaged. Validation of this problem through research should lead to prevention programs targeted to this population. Women with breast cancer who are economically disadvantaged may be particularly receptive to interventions that will enhance their quality of life.

The development of a nursing centre on a college campus: implications for the curriculum

The development of nurse-managed centres for health is receiving increased attention in the United States of America. Nursing centres serve a variety of clients and exhibit multiple management designs. This article describes the development of The Nursing and Health Information Centre (NHIC) at Herbert H. Lehman College of the City University of New York, USA. The NHIC is unique in that it is managed by the Department of Nursing and serves as a site for implementing the clinical objectives of the nursing programme.