DiPalma, J.A., Cleveland, M.B., McGowan, J., & Herrera, J.L. (2007b). A randomized, multi-centered, placebo-controlled trial of polyethylene glycol laxative for chronic treatment of chronic constipation. American Journal of Gastroenterology, 102, 1436–1441.
To compare the safety and efficacy of polyethylene glycol (PEG) versus placebo over a six-month treatment period in patients with chronic constipation.
PEG 3350 (Miralax®) laxative 17 g or placebo was administered daily for six months. Patients were randomly assigned in a 2:1 ratio to PEG or placebo. This was a subjects mixed study. Medication was administered in 8 oz of juice or another beverage. Bisacodyl 10 mg (5 mg tablets) was used as rescue medication for severe discomfort related to constipation. Fiber was prohibited. Other nonconstipating medications were allowed.
50 centers in the United States
This was a double-blind, placebo-controlled, parallel, randomized controlled trial.
PEG is safe and effective in management of constipation in adults and older adults for up to six months.
The study focused on chronic constipation and lacked focus on cancer or opioid-induced constipation.
DiPalma, J.A., Cleveland, M.B., McGowan, J., & Herrera, J.L. (2007a). A comparison of polyethylene glycol laxative and placebo for relief of constipation from constipating medications. Southern Medical Journal, 100, 1085–1090.
To compare the safety and efficacy of polyethylene glycol (PEG) 3350 (Miralax®) versus placebo for treatment of constipation in patients with chronic constipation.
PEG 3350 laxative 17 g or placebo was administered daily for 28 days. Use of nonconstipating medications was allowed, but the use of fiber or other laxatives was not permitted. Patients received a 4 L jug containing Crystal Light® with or without study medication. The mixture was reconstituted by unblinded study personnel; investigators remained blinded. A daily bowel diary was used to share bowel movement (BM) experiences and answer questions related to study efficacy and safety criteria. Laboratory evaluation was repeated at study conclusion.
Four centers in the United States
This was a double-blind, placebo-controlled, parallel, randomized controlled trial.
PEG is safe and effective in treating constipation in patients taking constipating medications.
DiPalma, J.A., Cleveland, M.V., McGowan, J., & Herrera, J.L. (2006). An open-labeled study of chronic polyethylene glycol laxative use in chronic constipation. Alimentary Pharmacology and Therapeutics, 25, 703–708.
To extend the safety data of polyethylene glycol used for chronic treatment of chronic constipation.
Polyethylene glycol laxative was administered as a single daily dose of 17 g for 12 months.
This was a randomized, open-label, single-treatment study.
Polyethylene glycol laxative is safe and effective for treating constipation in adult and older adult patients for periods up to 12 months, with no evidence of tachyphylaxis.
Dionne-Odom, J.N., Azuero, A., Lyons, K.D., Hull, J.G., Tosteson, T., Li, Z., . . . Bakitas, M.A. (2015). Benefits of early versus delayed palliative care to informal family caregivers of patients with advanced cancer: Outcomes from the ENABLE III randomized controlled trial. Journal of Clinical Oncology, 33, 1446–1452.
To assess the impact of early versus delayed (three months after patient diagnosis) initiation of palliative care for patients with advanced cancer on rural informal caregivers’ quality of life, burden (objective, demand, and stress), and depression
Caregivers were assigned to a palliative care intervention immediately following random assignment to groups (early or delayed) or three months after assignment. The telephone-based intervention, informed by authors’ earlier work sensitive to rural access issues, involved conversations between trained advanced practice palliative care nurse coaches and caregivers. Each coach provided three evidence-based content sessions delivered weekly in a scripted format. Each patient received a different coach than the family caregiver to support the open sharing of feelings about the caregiving experience. Coaches contacted their assigned caregivers on the telephone at least monthly to respond to emerging issues until patient death. Coaches encouraged caregivers to participate in patient palliative care consultations if acceptable to patient and called a caregivers when their family members died. All nurse coaches met weekly with study's primary investigator to support study integrity. To identify group differences on desired outcome measures, all caregivers completed three questionnaires at baseline and every six weeks until week 24.
Randomized, controlled trials with a wait-control design
More than 30% of participants did not complete all the follow-up assessments although the authors used appropriate statistics to confirm there was no significant relationship of attrition and measured characteristics of caregivers. The early intervention group showed a decline in depression scores from baseline compared to the delayed group (d –0.32, p = 0.02). There were no differences between the groups in quality of life or burden scores. Among the caregivers of patients who died, results for depression (p = 0.02) and stress burden (p = 0.01) were better in the early intervention group. All measures showed decline somewhat in both groups.
Study data support that well-educated, white, female caregivers experience improved quality of life, less depression, and less burden with early involvement in palliative care programs distinct from similar patient programs. More studies of minority populations, male caregivers, and low literacy populations receiving similar programs could increase the generalizability of the current study's findings.
Nursing knowledge and the clinical competency of support provision for early palliative care programs to family caregivers and patients challenged by end-of-life issues is important. The American Nurses Association Code for Nurses supports the ethical responsibility of nurses to ensure that both groups receive evidence-based programs tailored to patients and caregiver groups to meet current healthcare goals for person-centered care.
Diggelmann, K.V., Zytkovicz, A.E., Tuaine, J.M., Bennett, N.C., Kelly, L.E., & Herst, P.M. (2010). Mepilex Lite dressings for the management of radiation-induced erythema: A systematic inpatient controlled clinical trial. The British Journal of Radiology, 83(995), 971–978.
When erythema was visible (generally 10–14 days after first fraction), each affected skin area was randomly divided into two similar halves: one was treated using Mepilex Lite dressings, the other with standard aqueous cream. Mepilex Lite dressings are absorbent, self-adhering dressings consisting of a thin flexible sheet of absorbent hydrophilic polyurethane foam bonded to a water vapour-permeable polyurethane film backing layer. The contact surface of the dressing is coated with a soft silicone adhesive layer without any added chemicals, providing a moist wound-healing environment. Dressings were positioned by a research radiation therapist on half of the area where erythema was present, with the location marked by semi-permanent marker so patients could accurately reposition dressings after showering. The other half continued to be treated with aqueous cream. Allocation of dressings and controls was random based on order of entry into the trial. Skin areas were designated as superior/medial or inferior/lateral. Radiation-Induced Skin Reaction Assessment Scale (RISRAS) scores were determined three times a week (Monday, Wednesday, and Friday) from the moment erythema was visible until completion of radiation treatment. Two more assessments were completed one week after completion of treatment and at the final check-up (usually four weeks after completion of treatment). Because anecdotal evidence suggested the dressings may have a cooling effect, skin temperature of the 10 patients was measured three times a week during every skin assessment. The study endpoint was development of dry desquamation as departmental protocol is to cover any area of dry desquamation with Mepilex Lite dressings, thus removing control side of clinical trial.
The study took place at a single site in New Zealand.
Patients were undergoing the active treatment and transition phase. The study has clinical applicability to late effects and survivorship care.
The study used a quasi-experimental, unblinded design. The study was labeled by investigators as a systematic inpatient randomized controlled clinical trial.
Mepilex Lite dressings decreased the severity of radiation-induced erythema in patients with breast cancer treated with radiation therapy. The majority of patients preferred the dressings over the cream and thought they increased comfort levels, decreased the amount of pain experienced, and allowed patients to wear normal clothing. Mepilex Lite dressings did not affect surface skin temperature and did not cause a significant dose build-up.
What are insurance implications for patients who would potentially benefit from Mepilex Lite? Further studies with larger sample sizes, multiple centers, and other treatment areas known to demonstrate increased skin toxicity are needed.
Di Franco, R., Calvanese, M., Murino, P., Manzo, R., Guida, C., Di Gennaro, D., . . . Ravo, V. (2012). Skin toxicity from external beam radiation therapy in breast cancer patients: Protective effects of Resveratrol, Lycopene, Vitamin C and anthocianin (Ixor®). Radiation Oncology (London, England), 7, 12.
To evaluate the effect of dietary supplements in reducing skin toxicity due to radiotherapy in patients with breast cancer
Patients were treated with either dietary supplements or use of topical prophylactic hyaluronic acid and a topical steroid therapy in case of occurrence of radiodermatitis. Patients who were treated with dietary supplements were perscribed resveratrol, lycopene, vitamin C, and anthocyanins at a does of 2 tablets per day. Patients were not randomly assigned.
The study took place in an outpatient setting.
Patients were undergoing active antitumor treatment.
The study used a retrospective observational design.
Patients were assessed using the Radiation Therapy Oncology Group and European Organisation for Research and Treatment of Cancer skin toxicity scale.
In patients evaluated at various radiation therapy doses, odds ratios and relative risk of development of grade 0–1 and 2–3 skin toxicity were calculated. All ratios were less than 1.0, which cannot be evaluated. No statistically significant differences were reported, and no analysis of significance was provided.
The study does not provide or report sufficient evidence to draw any conclusions.
The study does not provide evaluative evidence for use of dietary supplements to prevent radiodermatitis.
Diedrich, B., Remberger, M., Shanwell, A., Svahn, B.M., & Ringden, O. (2005). A prospective randomized trial of a prophylactic platelet transfusion trigger of 10 x 109 per L versus 30 x 109 per L in allogeneic hematopoietic progenitor cell transplant recipients. Transfusion, 45, 1064–1072.
To compare differences in the number of platelet transfusions received and episodes of hemorrhagic bleeding, based upon a prophylactic transfusion trigger of either less than 10 x 109 per L or less than 30 x 109 per L, in patients undergoing allogeneic hematopoietic progenitor stem cell transplants
Patients were randomized (after stratification) to receive prophylactic platelet transfusions at either less than 10 x 109 or less than 30 x 109 per L. The number of transfusions received, the types of bleeding episodes, and the number of red blood cell transfusions were recorded 7 days pre- to 30 days post-transplantation. The results of the morning lab draws identified the need for transfusion based upon the trigger group (T 10 or T 30). In addition, patients were assessed daily (if inpatient) and twice weekly (if outpatient) by nurses blinded to the treatment arm. A special research nurse was used to collect study data.
Prospective, randomized trial
There were no significant differences between the groups based upon donor type, origin of hematopoietic progenitor cells, age, or conditioning regime used. There was a significantly lower number of transfusions received in the T 10 group (median 4 versus 10, p < 0.001) without a significant difference in the episodes of bleeding between groups.
The evidence suggests that the trigger for prophylactic platelet transfusions in patients undergoing allogeneic hematopoietic progenitor stem cell transplants may be safely decreased from 30 x 109 to 10 x 109 per L.
Note that the logistic regression multivariate analysis of factors associated with platelet transfusions before day 30 and before day 60 demonstrate wide confidence intervals (95% CI, 3.08–18.7 and 95% CI 1.82–9.67, respectively).
Nurses will care for patients at risk of life threatening bleeding and need to be aware of indications for platelet transfusion. A lower threshold for prophylactic transfusion may conserve the blood supply.
Didem, A., Ayfer, E., & Ayse Ferda, O. (2014). The effect of chewing gum on oral mucositis in children receiving chemotherapy. Health Science Journal, 8, 373–382.
To determine if chewing gum is efficacious in the prevention and treatment of oral mucositis in children receiving chemotherapy regimens
Quasi-experimental study with a control group
Chewing gum was an effective option for preventing and treating oral mucositis in pediatric patients with acute lymphoblastic leukemia, acute myeloid leukemia, Hodgkin lymphoma, and Wilms tumors.
Didem, K., Ufuk, Y.S., Serdar, S., & Zumre, A. (2005). The comparison of two different physiotherapy methods in treatment of lymphedema after breast surgery. Breast Cancer Research and Treatment, 93(1), 49–54.
The experimental group underwent complete decongestive therapy that included lymph drainage using the Foldi method, multilayer compression bandage, elevation, remedial exercises, and skin care. The control group underwent standard physical therapy that included compression bandages, elevation, head-neck and shoulder exercises, and skin care. Both groups had a home program of bandaging, skin care, and walking. Therapy was three times per week for four weeks.
The study used a prospective trial design.
Mean percentage reduction in edema was 55.7% in the experiential group and 36% in control group (p < 0.05). Only 45% had limitation of range of motion to start. Reduction in shoulder mobility was 48.1% in the experiential group and 42.3% in control group before treatment. Shoulder flexion and abduction movements in both groups were increased after treatment (p < 0.05). No significant difference was found in shoulder external rotation in both groups (p > 0.05). No difference was found between groups in shoulder mobility.
Patients were similarly classified using circumferential and volumetric measurements; therefore, either of the methods can be used.
Didem, K., Ufuk, Y.S., Serdar, S., & Zumre, A. (2005). The comparison of two different physiotherapy methods in treatment of lymphedema after breast surgery. Breast Cancer Research and Treatment, 93(1), 49–54.
The study included an experimental group and a control group. The experimental group received complete decongestive therapy (CDT) that included lymph drainage (Foldi method), multilayer compression bandage, elevation, remedial exercises, and skin care. The control group received standard physical therapy that included compression bandages, elevation, head and neck and shoulder exercises, and skin care. Both groups had a home program of bandaging, skin care, and walking. Therapy was three times per week for four weeks.
The study took place at a school of physical therapy.
A prospective trial design was used.
Either of the methods can be used.