Quality of life following laparoscopic living-donor nephrectomy

Combining transplant professional's psychosocial donor evaluation and donor self-report measures to optimise the prediction of HRQoL after kidney donation: an observational prospective multicentre study

OBJECTIVES

Living donor kidney transplantation is currently the preferred treatment for patients with end-stage renal disease. The psychosocial evaluation of kidney donor candidates relies mostly on the clinical viewpoint of transplant professionals because evidence-based guidelines for psychosocial donor eligibility are currently lacking. However, the accuracy of these clinical risk judgements and the potential added value of a systematic self-reported screening procedure are as yet unknown. The current study examined the effectiveness of the psychosocial evaluation by transplant professionals and the potential value of donor self-report measures in optimising the donor evaluation. Based on the stress-vulnerability model, the predictive value of predonation, intradonation and postdonation factors to impaired longer term health-related quality of life (HRQoL) of kidney donors was studied.

DESIGN

An observational prospective multicentre study.

SETTING

Seven Dutch transplantation centres.

PARTICIPANTS

588 potential donors participated, of whom 361 donated. Complete prospective data of 230 donors were available. Also, 1048 risk estimation questionnaires were completed by healthcare professionals.

METHODS

Transplant professionals (nephrologists, coordinating nurses, social workers and psychologists) filled in risk estimation questionnaires on kidney donor candidates. Furthermore, 230 kidney donors completed questionnaires (eg, on HRQoL) before and 6 and 12 months after donation.

PRIMARY AND SECONDARY OUTCOME MEASURES

HRQoL, demographic and preoperative, intraoperative and postoperative health characteristics, perceived support, donor cognitions, recipient functioning and professionals risk estimation questionnaires.

RESULTS

On top of other predictors, such as the transplant professionals' risk assessments, donor self-report measures significantly predicted impaired longer term HRQoL after donation, particularly by poorer predonation physical (17%-28% explained variance) and psychological functioning (23%).

CONCLUSIONS

The current study endorses the effectiveness of the psychosocial donor evaluation by professionals and the additional value of donor self-report measures in optimising the psychosocial evaluation. Consequently, systematic screening of donors based on the most prominent risk factors provide ground for tailored interventions for donors at risk.

Changes in Muscle Quality and Body Composition 1 Year After Hand-Assisted Laparoscopic Donor Nephrectomy in Living Kidney Donors

OBJECTIVES

Our aim was to investigate effects of surgery on living donors' body composition and clarify factors related to it.

MATERIALS AND METHODS

We evaluated preoperative computed tomography images of 335 living kidney donors (127 men, 209 women) to calculate 3 body composition parameters and changes with aging by sex: (1) skeletal muscle mass, quantified by skeletal muscle index; (2) fat distribution, calculated by visceral adipose tissue/subcutaneous adipose tissue ratio; and (3) muscle quality, quantified by intramuscular adipose tissue content. Thereafter, with pre- and postoperative computed tomography images from 75 living kidney donors (25 men, 50 women) after hand-assisted laparoscopic donor nephrectomy, we compared pre- and postoperative body composition changes.

RESULTS

Annual change in intramuscular adipose tissue content with age was 0.0049 in men and 0.0091 in women. Of 75 patients, 49 had lower quality of muscle, intramuscular adipose tissue content was significantly higher after nephrectomy (P < .001), and median change in intramuscular adipose tissue content was 0.061 (range, 0.018-0.11) in men and 0.052 (range, 0.017-0.18) in women. Univariate analysis revealed that skeletal mass index and visceral adipose tissue/subcutaneous adipose tissue ratio changes were significantly different between the intramuscular adipose tissue content improvement and deterioration groups. Multivariate analysis revealed skeletal mass index change was an independent factor for intramuscular adipose tissue content change (P = .0019). Intramuscular adipose tissue content change was negatively correlated with skeletal mass index change (r = -0.40).

CONCLUSIONS

Although muscle quality deteriorates after nephrectomy, maintaining muscle mass is important to retaining muscle quality.

Successful laparoscopic living donor nephrectomy: first experience in Lithuania

BACKGROUND

The aim of this paper is to share the initial results of LLDN in high-volume university centre that is performing laparoscopic nephrectomies for other indications.

MATERIALS AND METHODS

During 2017, four LLDNs were performed. The transperitoneal approach was used in all cases and the kidney was removed using a suprapubic incision. All donors and recipients were prospectively analysed within six-month follow-up. The patients' clinical, laboratory, and operation-related data were collected from direct interviews with them and from medical records. All patients signed written informed consent.

RESULTS

One male and three females donated their left kidneys by using the  LLDN technique. The mean age was 58 ±  9 years; two of them with a history of previous cholecystectomy. All donated kidneys had a single renal artery and renal vein. Pre-operative average eGFR was 94.2 ±  7.1 ml/min/1.73  m2, immediately after LLDN 57.5 ± 10.3 ml/min/1.73 m2, after one month 56.0 ± 9.1 ml/min/1.73 m2. There were no intraoperative complications; surgery duration was 223.75 ± 21.74 min, the cold ischemia time was 77.5 ± 28.77 min, and the warm ischemia time 6.37 ± 3.14 min. There was one postoperative donor complication, one case of acute kidney injury, and one case of prolonged postoperative abdominal pain. The only recipient complication was one case of acute kidney rejection; there were no cases of delayed graft function.

CONCLUSIONS

Our initial experience confirms that LLDN is an approach that is easy to learn, especially in a high-volume university hospital with expertise in performing laparoscopic nephrectomies for other indications.

Development and feasibility of a guided and tailored internet-based cognitive-behavioural intervention for kidney donors and kidney donor candidates

OBJECTIVES

Living donor kidney transplantation is currently the preferred treatment for patients with end-stage renal disease. A subgroup of the kidney donor population experiences adjustment problems during or after the donation procedure (eg, anxiety or fatigue). There is a need for evidence-based interventions that decrease donation-related difficulties before or after donation. In the current study, a guided and tailored internet-based cognitive-behavioural therapy (ICBT) intervention for donors and donor candidates was developed and the feasibility and perceived effectiveness were evaluated.

DESIGN

Pilot study including qualitative and quantitative research methods for intervention development and evaluation.

SETTING

Living kidney donor population of two Dutch transplantation centres.

PARTICIPANTS

Donors and healthcare professionals participated in focus group interviews conducted to identify intervention themes and to map attitudes towards internet-based interventions. In a pilot feasibility study, 99 donors and donor candidates participated, of whom 38 completed the screening. Eight donors or donor candidates with a risk profile (ie, impaired mental health-related quality of life (HRQoL)) received and evaluated the intervention.

INTERVENTIONS

A guided and tailored ICBT intervention for donors and donor candidates was developed. Donation-related treatment modules, assignments and psychoeducation were integrated within an existing disease-generic ICBT intervention.

OUTCOME MEASURES

HRQoL, anxiety and depression were assessed before and after the ICBT intervention. Additional questionnaires were included to identify specific problem areas of donor functioning to tailor the ICBT intervention to the donor's needs.

RESULTS

Different intervention themes were derived from the focus group interviews (eg, physical limitations, and donation-specific emotional and social-relational problems). Participants were satisfied about the intervention content (7.7±0.8 on a 0-10 scale) and the therapeutic relationship (4.4±0.6 on a 1-5 scale), and indicated an improvement on domains of their treatment goals (3.2±0.7 on a 1-4 scale).

CONCLUSION

This study showed positive evaluations concerning both feasibility and perceived effectiveness of the tailored ICBT intervention in kidney donors and donor candidates, in line with previous studies using comparable ICBT treatment protocols in other populations. Future research should examine the possibilities of integrating the intervention into psychosocial care for kidney donors.

Changes in quality of life after elective surgery: an observational study comparing two measures

PURPOSE

Our main objective was to compare the change in a validated quality of life measure to a global assessment measure. The secondary objectives were to estimate the minimum clinically important difference (MCID) and to describe the change in quality of life by surgical specialty.

METHODS

This prospective cohort study included 7902 adult patients undergoing elective surgery. Changes in the Veterans RAND 12-Item Health Survey (VR-12), composed of a physical component summary (PCS) and a mental component summary (MCS), were calculated using preoperative and postoperative questionnaires. The latter also contained a global assessment question for quality of life. We compared PCS and MCS to the global assessment using descriptive statistics and weighted kappa. MCID was calculated using an anchor-based approach. Analyses were pre-specified and registered (NCT02771964).

RESULTS

By the change in VR-12 scores, an equal proportion of patients experienced improvement and deterioration in quality of life (28% for PCS, 25% for MCS). In contrast, by the global assessment measure, 61% reported improvement, while only 10% reported deterioration. Agreement with the global assessment was slight for both PCS (kappa = 0.20, 57% matched) and MCS (kappa = 0.10, 54% matched). The MCID for the overall VR-12 score was approximately 2.5 points. Patients undergoing orthopedic surgery showed the most improvement in quality of life measures, while patients undergoing gastrointestinal/hepatobiliary or urologic surgery showed the most deterioration.

CONCLUSIONS

Subjective global quality of life report does not agree well with a validated quality of life instrument, perhaps due to patient over-optimism.

Psychosocial wellbeing after living kidney donation - a longitudinal, prospective study

Living kidney donation (LKD) has become routine practice across the world as the gold standard treatment of end-stage renal failure. Whilst the physical risks and harms of LKD surgery are well documented, relatively little is known about psychosocial outcomes. The aim of this study was to determine whether it was possible to quantify the psychosocial impact of LKD. A prospective longitudinal study of 93 living kidney donors was performed. Data were collected preoperatively, and 3 and 12 months after donation. Questionnaires included 11 validated psychosocial outcome measures and questions specific to LKD. Over time, there was no significant change in wellbeing, life satisfaction, self-esteem, social comparison, distress, depression, stress, anxiety or social support at 3 or 12 months. Despite this, questions specific to LKD indicated that donors felt positively about donation, with low levels of regret. This study provides a thorough assessment of psychosocial outcomes after LKD over the first year. Donors felt positive about LKD although there was no evidence of any significant change in psychosocial outcomes. Despite no measurable psychosocial benefit after living kidney donation, there was also no evidence of harm.

The Course and Predictors of Health-Related Quality of Life in Living Kidney Donors: A Systematic Review and Meta-Analysis

A better understanding of the course and risk factors for impaired long-term health-related quality of life (HRQoL; ie, physical, psychological, and social-relational functioning) after kidney donation might help clinicians improve the care of live kidney donors. This systematic review and meta-analysis summarizes prospective studies about the course and predictors of HRQoL in living kidney donors. Studies indicate that shortly after donation, donors have lower HRQoL, with minor to moderate changes in psychological and social-relational functioning and major changes in physical functioning. At 3-12 months after donation, HRQoL returned to baseline or was slightly reduced, particularly for fatigue, but scores were still comparable to general population norms. Results were mainly robust across surgery techniques. A limited number of studies examined risk factors for impaired HRQoL, with low psychological functioning before donation as the most consistent predictor. Based on these results, clinicians can inform potential donors that, on average, kidney donors have high long-term HRQoL; however, donors with low psychological functioning at baseline are those most at risk of impaired long-term HRQoL. Future studies should focus on other potentially relevant predictors of postdonation HRQoL, including donor eligibility criteria and donor-recipient relationships, to optimize screening and interventions for donors at risk.

Single-port live donor nephrectomy using a novel Curved Radius r2 Surgical System in an in vivo model

OBJECTIVE

Single-port laparoscopic donor nephrectomy provides low morbidity and satisfactory cosmetic results for patients. The aim of this animal study was to establish a surgical technique of single-site (LESS) living donor nephrectomy using novel curved r2 CURVE manipulators specially designed for single-port access.

MATERIAL AND METHODS

A total of six LESS nephrectomies were performed in three female pigs. r2 CURVE-instruments (Tuebingen Scientific Medical GmbH) were used providing a curved rotatable shaft, endless tip rotation, as well as 90° tip deflection. A 10 mm 30° extra long laparoscope, r2-curved Grasper, Maryland dissector and bipolar scissors were used for mobilization and dissection.

RESULTS

All LESS nephrectomies were performed successfully. Average operative time was 80 min (range, 42-149 min). No technical problems were observed. Insertion and extraction of the instruments through the single-port were easy to conduct. The diameter of the used single-port was sufficient for safe manual organ harvesting. Potential conflict between the laparoscope and the instrument handles was avoided by using an extra long laparoscope.

CONCLUSIONS

The new curved and deflectable instruments showed that single-port nephrectomy using the R2 manipulators is feasible. Single-port laparoscopic nephrectomy might be more patient-friendly and improve the willingness of potential donors to donate live organs.