Comparative Study on the Outcomes of Elective-Start versus Urgent-Start Peritoneal Dialysis Catheter Placement

Percutaneous Insertion of Peritoneal Dialysis Catheters

Patients with end-stage renal disease undergoing hemodialysis encounter significant challenges in care coordination and experience higher complication rates. Peritoneal dialysis (PD) is an evidence-based alternative that significantly improves patients' quality of life.Peritoneal dialysis catheter insertion methods include open surgical, laparoscopic, peritoneoscopic, and percutaneous image-guided approaches. Despite comparable success rates and cost-effectiveness, the US healthcare system underutilizes the percutaneous method.This article aims to provide an overview of the essential components of the technique of percutaneous peritoneal dialysis catheter insertion, as well as address patient selection nuances and considerations for urgent-start dialysis. Additionally, it reviews the outcomes and complications associated with image-guided percutaneous PD catheter placement, advocating for its wider adoption.

Comparison of Unplanned/Urgent-Start Versus Conventional-Start Peritoneal Dialysis: A Systematic Review and Meta-Analysis

The timing of peritoneal dialysis (PD) initiation, whether conventional-start (planned) or urgent-start (unplanned), may impact the outcomes of PD and the rate of associated complications in individuals with chronic kidney disease (CKD). The goal of this study was to evaluate the effects of unplanned/urgent-start PD versus conventional-start PD in this cohort of patients. Electronic search of MEDLINE (via PubMed), EMBASE, Cochrane Central Register of Controlled Trials (CENTRAL), and Scopus databases was done from inception until July 2023 for studies reporting outcomes of unplanned/urgent-start and conventional-start PD in CKD patients. Outcomes of interest included mechanical complications, post-procedure infections, mortality, and transfer to hemodialysis. Heterogeneity, publication bias, and the influence of individual studies on the pooled odds ratio (OR) with 95% confidence interval (CI) were evaluated. Twenty-seven studies were finally included in the review. The overall risk of post-procedure infectious was comparable for both PD initiation methods (OR: 1.05; 95% CI: 0.83-1.34). Similarly, the risks for peritonitis and exit site infections did not differ significantly. However, urgent-start PD correlated with a significantly higher risk of overall mechanical complications (OR: 1.70; 95% CI: 1.23-2.34). Specifically, the risk for leaks was notably higher (OR: 2.47; 95% CI: 1.67-3.65) in the urgent-start group compared to the conventional-start PD group. Urgent-start PD correlated with significantly increased mortality rates (OR: 1.83; 95% CI: 1.39-2.41). There was no difference in the likelihood of technique survival and transfer to hemodialysis. Both urgent-start and conventional-start PD correlated with similar risks of overall infectious complications. Urgent-start PD resulted in significantly increased risks of mechanical complications and mortality. Our findings emphasize the need for meticulous planning and consideration when opting for PD initiation.

Factors influencing renal replacement therapy modality choice from the nephrologist's perspective

BACKGROUND

Peritoneal dialysis (PD) offers quality of life and empowerment for persons with end-stage kidney disease (ESKD). Nevertheless, the prevalence of PD is low in Belgium and Europe in general. Reimbursement, patient mix and late referral have been quoted as underlying reasons. However, to date no one-size-fits-all solution increasing uptake of PD has been successfully implemented. We aimed to understand the nephrologist's perspective, beliefs, and experiences on dialysis modality selection and to clarify underlying process-level and intrinsic motivations steering final decisions.

METHODS

Using purposeful sampling, Belgian nephrologists (non-/academic, geographical spread, age, gender) were selected. We conducted semi-structured interviews, and audiotapes were transcribed verbatim. Meaningful units were grouped into (sub-)themes, and a conceptual framework was developed using grounded theory according to Charmaz as guidance.

RESULTS

Twenty-nine nephrologists were interviewed. We identified four themes: Trust and belief (in PD as a technique; own expertise, knowledge and team; in behavior of patient, family practitioner), feeling of control (paternalism; insecurity; prejudice), vision of care and approach (shared decision making; troubleshooting attitude; flexibility and creativity; complacency), and organizational issues (predialysis; access; financial; and assisted PD).

CONCLUSIONS

Based on these interviews, it is apparent that next to already identified singular issues such as late referral, predialysis education, patient mix and financial incentives, more intrinsic factors also impact uptake of home-based therapies. These factors intertwine and relate both to process-level topics and to attitudes and culture of the nephrologists within the team.

Prognosis of urgent initiation of peritoneal dialysis: a systematic review and meta-analysis

OBJECTIVES

Currently, there is no consensus on the optimal timing for the initiation of peritoneal dialysis (PD) after catheter placement.

DESIGN

Systematic review and meta-analysis.

EXACT DATE OF DATA COLLECTION

From inception till July 31, 2023.

MAIN OUTCOME MEASURES

To assess the outcomes and safety of unplanned PD initiation (<14/7 days after catheter insertion) in cohort studies.

RESULTS

Fifteen studies involving 3054 participants were included. (1) The risk of unplanned initiation of leakage and Obstruction was no difference in both the break-in period (BI) <14 and BI < 7 groups. (2) Catheter displacement was more likely to occur in the emergency initiation group with BI < 7. (3) No significant differences were observed between the two groups regarding infectious complications. (4) There was no difference in transition to HD between patients with BI < 7 and BI < 14 d.

CONCLUSION

Infectious complications of unplanned initiation of peritoneal dialysis did not differ from planned initiation. Emergency initiation in the BI < 7 group had higher catheter displacement, but heterogeneity was higher. There were no differences in leakage or obstruction in either group. Catheter survival was the same for emergency initiation of peritoneal dialysis compared with planned initiation of peritoneal dialysis and did not increase the risk of conversion to hemodialysis.

REGISTRATION

This meta-analysis was registered on PROSPERO (https://www.crd.york.ac.uk/PROSPERO/, number: CRD42023431369).

SAGES peritoneal dialysis access guideline update 2023

BACKGROUND

Minimally invasive surgery has been used for both de novo insertion and salvage of peritoneal dialysis (PD) catheters. Advanced laparoscopic, basic laparoscopic, open, and image-guided techniques have evolved as the most popular techniques. The aim of this guideline was to develop evidence-based guidelines that support surgeons, patients, and other physicians in decisions on minimally invasive peritoneal dialysis access and the salvage of malfunctioning catheters in both adults and children.

METHODS

A guidelines committee panel of the Society of American Gastrointestinal and Endoscopic Surgeons reviewed the literature since the prior guideline was published in 2014 and developed seven key questions in adults and four in children. After a systematic review of the literature, by the panel, evidence-based recommendations were formulated using the Grading of Recommendations Assessment, Development and Evaluation approach. Recommendations for future research were also proposed.

RESULTS

After systematic review, data extraction, and evidence to decision meetings, the panel agreed on twelve recommendations for the peri-operative performance of laparoscopic peritoneal dialysis access surgery and management of catheter dysfunction.

CONCLUSIONS

In the adult population, conditional recommendations were made in favor of: staged hernia repair followed by PD catheter insertion over simultaneous and traditional start over urgent start of PD when medically possible. Furthermore, the panel suggested advanced laparoscopic insertion techniques rather than basic laparoscopic techniques or open insertion. Conditional recommendations were made for either advanced laparoscopic or image-guided percutaneous insertion and for either nonoperative or operative salvage. A recommendation could not be made regarding concomitant clean-contaminated surgery in adults. In the pediatric population, conditional recommendations were made for either traditional or urgent start of PD, concomitant clean or clean-contaminated surgery and PD catheter placement rather than staged, and advanced laparoscopic placement rather than basic or open insertion.

Early outcomes of peritoneal dialysis in a middle-income country: A retrospective cohort study of a large dialysis network in Colombia

BACKGROUND

The first year of dialysis is critical given the significant risk for complications following dialysis initiation. We analysed complications during the first year among incident peritoneal dialysis (PD) patients.

METHODS

This retrospective cohort study comprised adult kidney failure patients starting PD in Baxter Renal Care Services in Colombia, receiving their first PD catheter between 1 January 2017 and 31 December 2020 and were followed up for up to 1 year. We analysed incidence, causes and factors associated with complications using logistic regression and transfer to haemodialysis (HD) using the Fine-Gray regression model.

RESULTS

Among 4743 patients receiving their first PD catheter: 4628 (97.6%) of catheter implantations were successful; 377 (7.9%) patients experienced early complications. The incidence rate of complications during the year was 0.51 events per patient-year (95% CI: 0.48-0.54). Age, obesity and urgent start were associated with higher probability of complications after catheter implantation. The cumulative incidence of transfer to HD within 1 year of PD initiation was 10.1% [95% CI: 9.2-11.1%]. The hazard function for transfer to HD showed an accelerating pattern during the first month followed by progressive decrease during the first year.

CONCLUSIONS

In this large population of incident PD patients, there is a high primary catheter placement success rate. Urgent start, age ≥65 years, obesity, centre size ≥150 PD patients and diabetes were risk factors associated with early complications. The follow-up of the cohort from day 1 of PD treatment showed that the risk for transfer to HD was higher during the first month.

Comparison of mortality and complications between urgent-start peritoneal dialysis and urgent-start hemodialysis: A systematic review and meta-analysis

The advantages of urgent-start peritoneal dialysis (PD) vis-à-vis urgent-start hemodialysis (HD) are not clear. We performed a systematic review and meta-analysis of studies comparing the two modalities. Databases of PubMed, Embase, Ovoid, and Google Scholar were searched up to November 1, 2020. The primary outcome was mortality, and secondary outcomes were dialysis-related infectious complications and mechanical complications. Risk ratios (RRs) were calculated for all outcomes. Seven studies were included. The pooled analysis revealed a statistically significant reduced risk of all-cause mortality in patients undergoing urgent-start PD as compared to urgent-start HD (RR: 0.61, 95% confidence interval [CI] [0.40, 0.94], I²  = 56.34%). A meta-analysis of dialysis-related infectious complications indicated no statistically significant difference between the two modalities (RR: 0.66, 95% CI [0.29, 1.50], I²  = 69.62%). Our analysis revealed a statistically significant reduced risk of mechanical complications in patients undergoing urgent-start PD (RR: 0.54, 95% CI [0.40, 0.73], I²  = 0%). To conclude, unadjusted data from observational studies are indicative of lower mortality and lower risk of mechanical complications with urgent-start PD versus urgent-start HD. The risk of infectious complications was not different between the two groups. Further studies with a larger sample size using propensity-matched cohorts are needed to strengthen current evidence.

Factors Associated With Urgent-Start Peritoneal Dialysis Catheter Complications in ESRD

INTRODUCTION

Urgent-start peritoneal dialysis (PD) in patients with newly diagnosed end-stage renal disease (ESRD) is a well-tolerated alternative to hemodialysis (HD). The primary aim of this study was to identify the demographic and clinical characteristics of ESRD patients, as well as the presurgical, surgical, and postsurgical factors associated with urgent-start PD complications.

METHODS

A retrospective cross-sectional observational study was performed on 102 patients with ESRD who merited urgent-start PD from January 2015 to June 2019. The primary clinical outcome measures were catheter leakage, dysfunction, and peritonitis, whereas the secondary outcomes were catheter removal, repositioning, and death. Statistical inferences were made with the χ2 or Fisher's exact test and independent samples t tests.

RESULTS

One hundred two subjects (65 men, 63.7%) 56.2 ± 15.1 years old were included in this study; 64 of the subjects had diabetes and hypertension (62.7%). Catheter leakage occurred in 8 patients (7.8%), catheter dysfunction in 27 patients (26.5%), and peritonitis in 14 patients (13.7%); meanwhile, catheter removal occurred in 6 patients (5.9%), catheter repositioning in 21 patients (20.6%), and death in 3 patients (2.9%). Peritonitis was associated with younger age (i.e., 47.0 ± 16.8 vs. 57.6 ± 14.4 years; P = 0.014; 95% confidence interval [CI]: 2.2-19.1; odds ratio [OR] 0.96; P = 0.018; 95% CI: 0.92-099), higher creatinine levels upon admission (i.e., 20.2 ± 9.8 vs. 14.1 ± 8.3; P = 0.014; 95% CI: -10.9 to -1.2), and heart failure (OR 4.79; P = 0.043; 95% CI: 1.05-21.88). Patients with abdominal hernia were 7.5 times more likely to have their catheter leak (OR 7.5; P = 0.036; 95% CI: 1.14-49.54). Catheter removal was associated with obesity (i.e., body mass index [BMI] of 31.6 ± 4.1 vs. 25.9 ± 4.9; P = 0.007; 95% CI: -9.8 to -1.6; OR 1.26; P = 0.013; 95% CI: 1.05-1.51) and Modification of Diet in Renal Disease glomerular filtration rate (MDRD-GFR) (i.e., 2.5 ± 0.6 vs. 3.7 ± 2.3; P = 0.003; 95% CI: 0.5-1.9).

CONCLUSION

Peritonitis was associated with younger age, higher creatinine levels upon admission, and heart failure; meanwhile, catheter removal was linked to obesity and lower glomerular filtration rate. Compared with previous reports, our study included patients in which PD was initiated shortly after catheter insertion, making the intervention a true urgent-start PD. This study contributes to the existing urgent-start PD literature by providing evidence that urgent-start PD with catheter opening within 72 hours has limited complications, making it a relatively safe option.

Comparison of outcomes of urgent-start and conventional-start peritoneal dialysis: a single-centre experience

BACKGROUND

There has been a growing interest in urgent-start peritoneal dialysis (PD) in patients with end-stage kidney disease to avoid central venous catheter use and its complications. This study aimed to compare clinical outcomes between urgent-start PD (defined as PD commencement within 2 weeks of PD catheter insertion) and conventional-start PD.

METHODS

This was a single-centre retrospective cohort study of all incident PD patients at Singapore General Hospital between January 2017 and February 2018. The primary outcome was dialysate leak. Secondary outcomes included catheter malfunction, catheter readjustment, exit-site infection, peritonitis, technique and patient survival.

RESULTS

A total of 187 incident PD patients were included. Of these, 66 (35%) initiated urgent-start PD. Dialysate leak was significantly higher in urgent-start PD compared with conventional-start PD groups (7.6% versus 0.8%; p = 0.02) whilst catheter malfunction (4.5% vs. 3.3%; p  = 0.70) and catheter readjustment (1.5% vs. 2.5%; p  = 1.00) were comparable between the two groups. Exit-site infection was comparable (IRR: 0.66 95% CI 0.25-1.74) whilst peritonitis was significantly higher in urgent-start PD compared with conventional-start PD (incidence risk ratio (IRR) 3.10, 95% confidence interval (CI) 1.29-7.44). Time to first episode of peritonitis, particularly Gram-positive peritonitis was significantly shorter with urgent-start PD. Technique survival (hazards ratio (HR) 1.95, 95% CI 0.89-4.31) and patient survival (HR 1.46, 95% CI 0.44-4.87) were comparable between the two groups.

CONCLUSION

Urgent-start PD was associated with higher risks of dialysate leak and peritonitis but comparable technique and patient survival compared to conventional-start PD.