Complications with permanent peritoneal dialysis catheters: experience with 154 percutaneously placed catheters

Inferior epigastric artery injury after percutaneous imaging-guided peritoneal dialysis catheter placement

Inferior epigastric artery (IEA) injury is a rare clinical entity that is usually associated with abdominal wall procedures and injuries though can also be spontaneous, particularly in individuals with coagulopathy. Of all described mechanisms of injury, percutaneous peritoneal dialysis (PD) catheter insertion is a rarely encountered, particularly in instances where insertion is performed under imaging guidance. While this injury is self-limited, it can be associated with hemodynamic instability and acute blood loss anemia, which can be fatal if left untreated. Computed tomographic (CT) angiography is the diagnostic method of choice. Transcatheter arterial embolization is an effective treatment modality with a high success rate. Here, we describe a 41-year-old female who underwent percutaneous PD catheter insertion that, despite intraprocedural imaging guidance, was complicated by large hemoperitoneum and clinical instability. Prompt identification of IEA injury followed by immediate intervention with coil embolization led to a successful outcome for this patient in the setting of a life-threatening uncommon complication of such procedure. The details of the diagnostic evaluation and management are outlined.

Introduction of advanced laparoscopy for peritoneal dialysis catheter placement and the outcome in a University Hospital

Background

Peritoneal dialysis (PD) catheters can be obstructed by omental wrapping or migration, leading to catheter malfunction. Multiple catheter placement techniques have been described. Advanced laparoscopy with fixation of the catheter and omentum has been reported to improve functional outcome compared to basic laparoscopy without fixation. This feasibility study describes surgical technique, complications, and comparison of the functional outcome of advanced versus basic laparoscopic catheter placement.

Methods

Between July 2016 and April 2019, the advanced laparoscopy technique was applied in all eligible patients. Two experienced surgeons placed the catheters in a standardized procedure. Peri-operative complications and functional outcome of the catheter were scored. Results were compared to a historical cohort retrieved from our RCT performed earlier using basic laparoscopy.

Findings

The basic laparoscopic group (BLG) consisted of 46 patients and the advanced laparoscopic group (ALG) of 32. Complication rate in both groups was similar and low with 7% in the BLG and 6% in the ALG (p = 1.0). There was a trend toward better functional catheter outcome in the ALG (88%) compared to the BLG (70%) (p = 0.1). Part of the catheter failures in the ALG could be related to the learning curve. After revision surgery, 94% of patients in the ALG had a functional catheter. These findings lead to the set-up of a multi-center randomized-controlled trial, currently running, comparing basic to advanced laparoscopic techniques.

Study of early complications associated with peritoneal dialysis catheters: an analysis of the New Zealand Peritoneal Dialysis Registry data

INTRODUCTION

Early peritoneal dialysis catheter (PDC)-related complications are frequent and make an important contribution to long-term PD survival. We aimed to analyse the incidence and specific causes of early PDC-related complications.

METHODS

This study was conducted from January 2001 to December 2012, utilising the New Zealand PD Registry (NZPDR) data. The objectives of this study were to analyse the incidence and causes of PDC-related complications within 4 weeks and 3 months of insertion. A logistic regression analysis was conducted to analyse any demographic or clinical risk factors of early PDC-related complications.

RESULTS

Of the 2573 PDC insertions during this period, majority 88% were surgically inserted. The number of complication within 4 weeks ranged from minimum of 20% to a maximum of 34% annually, with infections and flow dysfunctions leading the causes. There has been a minor drop in the infection rates from 19 to 16% (p = 0.21), and flow dysfunction from 12 to 9% (p = 0.16), from 2001 to 2012. A reduced odds of early complication was noted in elderly individuals above 60 years age, with odds ratio of (OR) of 0.73 (95% CI 0.53-0.99), while as higher odds of early complications were recorded in female gender, OR 1.41 (95% CI 1.06-1.88). Of the 10% of patients who failed to initiate PD within 90 days, flow dysfunction contributed to 32%, followed by infectious and surgical causes in 16% and 15%, respectively. The median time from insertion of PDC to initiation of PD was 17 days (interquartile range of 14-24 days) CONCLUSIONS: Improvements in PDC insertion techniques and reduction in infection rates may result in improvements in long-term PD technique survival.

A Simple Tenckhoff Catheter Placement Technique for Continuous Ambulatory Peritoneal Dialysis (CAPD) Using the Bandung Method

Insertion of Tenckhoff catheters for continuous ambulatory peritoneal dialysis by nephrologists remains uncommon in most developing countries, including Indonesia. The aim of this study is to describe our experience on a simple technique of Tenckhoff catheter insertion by a nephrologist called the Bandung method. We conducted a retrospective observational study from May 2012 until December 2018 in 230 patients with end-stage renal disease using the Bandung method, a blind percutaneous insertion approach modified from the Seldinger technique. Early complications after insertion were assessed. The mean age of patients was 47.28 years (range 14–84 years). Within 1 month after insertion, complications occurred in 34 patients: 13 (5.7%) malposition, 8 (3.5%) omental trapping, 6 (2.6%) outlow failure, 3 (1.3%) peritonitis, 1 (0.4%) catheter infections, 1 (0.4%) bleeding, 1 (0.4%) kinking, and 1 (0.4%) hernia. None of these complications led to catheter removal. One patient experienced a late (>1 month) post-insertion complication of malposition that could not be repositioned and led to catheter removal. The Bandung method is a simple, cost effective, and minimally invasive technique for Tenckhoff catheter insertion that is associated with the same rate of complications compared to other techniques. This technique may useful for application in developing countries.

Percutaneous insertion of peritoneal dialysis catheter is a safe and effective technique irrespective of BMI

BACKGROUND

A large body mass index (BMI) has been considered as a relative contraindication for percutaneous catheter insertion, although this technique has many advantages. Up to now, there are few studies on peritoneal catheter placement and obesity. The aim of this study was to determine whether patients with large BMI can also choose the percutaneous technique for peritoneal dialysis catheter insertion.

METHODS

One hundred eighty seven consecutive patients underwent peritoneal catheter insertions in the Chinese PLA General Hospital between January 1, 2015 and December 31, 2016, with 178 eligible cases being included in the analysis. Two groups were created based on the catheter insertion techniques, the percutaneous group (group P) and the surgical group (group S). Subgroups were created according to BMI > 28 or ≤ 28. The outcomes included catheter related complications and catheter survival.

RESULTS

Total infectious complication rates were significantly lower in group P than in group S. There were no significant differences in peritonitis rate between group P and group S (1.20% vs. 3.16% with P = 0.71 in early stage, and 4.82% vs. 11.58% with P = 0.11 in late stage). All other measured complications were similar between the two groups. Though the one-year infection-free catheter survival in group P was 7.5% higher than group S, the difference was not significant. The one-year dysfunction-free catheter survival, one-year dysfunction-and-infection-free catheter survival, and overall catheter survival were similar between the two groups. Subgroup analyses showed a superior one-year infection-free catheter survival of percutaneous technique in patients with BMI > 28, which was confirmed by Kaplan-Meier analysis.

CONCLUSIONS

Despite the challenges that may be encountered with patients who have a large BMI, the percutaneous technique seems to be a safe and effective approach to placing a peritoneal dialysis catheter.

Ultrasound-guided percutaneous peritoneal dialysis catheter insertion using multifunctional bladder paracentesis trocar: A modified percutaneous PD catheter placement technique

Background

To evaluate the efficacy and safety of ultrasound‐guided percutaneous peritoneal dialysis catheter insertion using multifunctional bladder paracentesis trocar.

Methods

A retrospective review of 103 ESRD patients receiving percutaneous PD catheter insertion using a multifunctional bladder paracentesis trocar under ultrasound guidance at a single center between May 2016 and May 2018. Mechanical complications and catheter survival were evaluated over a 12‐month follow‐up.

Result

Catheterization using this technique required only 10‐30 minutes from the beginning of local anesthesia to the end of skin suture at the puncture site (mean 18 ± 7 minutes) and an incision length of 2‐4 cm. Moreover, only four of 103 cases required catheter removal due to poor drainage within one month after surgery, with a success rate of 96.19%. Among failures, omentum wrapping was cause in two cases, catheter displacement in one case, and protein clot blockage in one case, while there were no instances of organ injury, severe hemorrhage, peritubular leakage, hernia, peritonitis, or exit infection within one month of PD catheter insertion. Catheter survival at 1 year was 92.2%.

Conclusion

Percutaneous PD catheter insertion using a multifunctional bladder paracentesis trocar and ultrasound guidance is a feasible technique for ESRD patients.

Randomized controlled trials for comparison of laparoscopic versus conventional open catheter placement in peritoneal dialysis patients: a meta-analysis

Background

The application of laparoscopic catheterization technology in peritoneal dialysis (PD) patients has recently increased. However, the advantages and disadvantages of laparoscopic versus conventional open PD catheter placement are still controversial. The aim of this meta-analysis is to assess the complications of catheterization in PD patients and to provide a reference for choosing a PD-catheter placement technique in the clinic.

Methods

We searched numerous databases, including Embase, PubMed, CNKI and the Cochrane Library, for published randomized controlled trials (RCTs).

Results

Eight relevant studies (n = 646) were included in the meta-analysis. The pooled results showed a lower incidence of catheter migration (OR: 0.42, 95% CI: 0.19 to 0.90, P: 0.03) and catheter removal (OR: 0.41, 95% CI: 0.21 to 0.79, P: 0.008) but a higher incidence of bleeding (OR: 3.25, 95% CI: 1.18 to 8.97, P: 0.02) with a laparoscopic approach than with a conventional approach. There was no significant difference in the incidence of omentum adhesion (OR: 0.32, 95% CI: 0.05 to 2.10, P: 0.24), hernia (OR: 0.38, 95% CI: 0.09 to 1.68, P: 0.20), leakage (OR: 0.69, 95% CI: 0.38 to 1.26, P: 0.23), intestinal obstruction (OR: 0.96, 95% CI: 0.48 to 1.91, P: 0.90) or perforation (OR: 0.95, 95% CI: 0.06 to 15.42, P: 0.97). The statistical analysis showed no significant difference in early (OR: 0.44, 95% CI: 0.15 to 1.33, P: 0.15), late (OR: 0.89, 95% CI: 0.41 to 1.90, P: 0.76) or total (OR: 0.68, 95% CI: 0.42 to 1.12, P: 0.13) peritonitis infections between the 2 groups, and there are no no significant difference in early (OR: 0.39, 95% CI: 0.06 to 2.36, P: 0.30), late (OR: 1.35, 95% CI: 0.78 to 2.33, P: 0.16) or total (OR: 1.20, 95% CI: 0.71 to 2.02, P: 0.17) tunnel or exit-site infections between the 2 groups.

Conclusion

Laparoscopic catheterization and conventional open catheter placement in PD patients have unique advantages, but laparoscopic PD catheterization may be superior to conventional open catheter placement. However, this conclusion needs to be confirmed with further large-sample-size, multi-centre, high-quality RCTs.

Randomized Prospective Comparison of Laparoscopic and Open Peritoneal Dialysis Catheter Insertion

Objective

To compare laparoscopic and conventional peritoneal dialysis catheter insertion with respect to post operative discomfort, complication rates, and catheter survival.

Design

Randomized prospective study.

Setting

Tertiary referral renal unit.

Patients

Fifty patients commencing peritoneal dialysis.

Intervention

Catheters were implanted laparoscopically or by a conventional surgical technique.

Main Outcome Measures

The duration of surgery, hospital stay, pain scores, and analgesic requirements were recorded. Complications (early/late) and catheter survival were compared.

Results

The conventional procedure was faster than the laparoscopic (14.3 vs 21.9 minutes, p < 0.0001). There was no difference in any other parameter assessed.

Conclusions

The data suggest that the insertion techniques are equivalent, and that laparoscopic insertion does not reduce early complication rates.

A New Self-Locating Peritoneal Catheter

Objective

Peritoneal catheters often become dislocated, and this may lead to malfunction. Since it is not usually possible to bring them back into their correct position, they must be replaced. With the aim of preventing this complication, we designed a new catheter.

Design

The new catheter has the same form as the Tenckhoff catheter except for a small increase in external diameter of the last 2 cm, made possible by the high specific weight of a small12-g tungsten cylinder incorporated in the Silasticat the abdominal end. The new catheter may be inserted by a percutaneous technique.

Setting

University hospitals of Sienaand Perugia, Italy.

Patients

In the last three years, 32 of these catheters have been implanted for a total experience of 468 patientmonths. Their position was checked on insertion and every two months thereafter by radiography; 26 Tenckhoff catheters (415 patient-months) were studied at the same time. Insertion was performed surgically and by a percutaneous method. The frequency of cuff extrusion, exit-site infections, leakage, and peritoneal infection were noted, together with peritoneal function, which was evaluated by KTN and weekly creatinine clearance one month after catheter insertion; the tests were repeated when dislocation occurred and at the end of the trial.

Results

No dislocations occurred with the self-locating catheters, whereas nine dislocations occurred in control patients (p = 0.0003). There were no significant differences with respect to controls for cuff extrusion, exit-site infections, leakage, peritoneal infection, and peritoneal function.

Conclusions

The presence of a small weight at the catheter tip prevents displacement completely, keeping the intraperitoneal part of the catheter in place.

Fluoroscopically Guided Peritoneal Dialysis Catheter Placement: Long-Term Results from a Single Center

Objective

Despite percutaneous fluoroscopy ensuring appropriate placement of peritoneal dialysis (PD) catheters, the efficacy of this method is not well known. Therefore, we evaluated our long-term experience with fluoroscopy-assisted placement of PD catheters.

Patients and Methods

We retrospectively reviewed 134 PD catheters in 114 PD patients that were treated in the PD center of a university-based hospital. We evaluated complications related to PD catheters, causes for catheter removal, and catheter survival. We used the multivariate Cox proportional hazard model to identify independent factors related to PD catheter survival.

Results

Early complications related to insertion included 1 case of pericatheter bleeding; there were no placement failures. Early complications occurred in 8.5% of patients. Most late complications were migration and leakage, which occurred in 10.4% and 9.7% of patients respectively. The most common cause for catheter removal was intractable and recurrent peritonitis. The 12- and 24-month survival rates of the catheters were 80.0% and 74.9%. The most significant prognostic factor of percutaneous fluoroscopy-assisted PD catheter survival was late leakage ( p < 0.01).

Conclusions

In addition to the advantages of simplicity, minimal invasiveness, and relative safety, the survival rate of PD catheters placed using the percutaneous fluoroscopy-assisted method was comparable to that of more invasive methods. Percutaneous fluoroscopy-assisted placement of PD catheters should be considered when available, and may be preferred to other placement methods.

Tenckhoff Catheter Insertion by Nephrologists: Open Dissection Technique

Background

The practice of Tenckhoff catheter insertion by nephrologists remains uncommon in most countries.

Methods

We report our single-center experience of Tenckhoff catheter insertion by nephrologists using the open dissection surgical technique in a dedicated ward-based procedure room.

Results

Between November 2005 and September 2008, 250 peritoneal catheters were inserted by 6 nephrologists with varying levels of experience. Surgical dissection followed by exposure of the peritoneum under direct vision was performed under local anesthesia. Primary catheter failure, as defined by catheters that failed to function within 1 month after insertion, occurred in 2.8% of cases. Within 1 month of catheter insertion, 20 patients developed infectious complications: 9 (3.6%) peritonitis, and 11 (4.4%) exit-site infections; none of these complications led to catheter removal. Mean technique survival for the catheters was 41.2 months (95% confidence interval: 39.5 months to 42.9 months). Catheter survival rates at 1 and 2 years were 92.7% and 87.2% respectively.

Conclusions

We reported an encouraging outcome for Tenckhoff catheters inserted by nephrologists in an open surgical manner, with a 2-year catheter survival of 87.2% and a good safety profile.

Comparison of the complications of open surgery versus laparoscopic technique in insertion of peritoneal dialysis catheter

Background:

Invention of peritoneal dialysis (PD) has opened new windows for patients under dialysis due to its fewer time requirement and being ambulatory in comparison to hemodialysis. Open surgery and laparoscopic technique have been utilized for peritoneal catheter embedding; however, data about the superior technique are controversial. This study aimed to assess the outcomes of open surgery versus laparoscopic technique and compare their complications in those with survival of over and less than a year in patients who need PD for the first time.

Materials and Methods:

This randomized clinical trial study was conducted on 121 cases admitted for PD. Patients were randomly divided into two groups undergoing either open or laparoscopic surgery for embedding PD catheter. Patients’ demographics, as well as PD function and complications, were followed for a 12-month duration and compared between the two groups.

Results:

Catheter survival for over 12 months occurred in 39 patients (65%) underwent laparoscopic surgery, and 45 (73.8%) patients underwent open surgery (P = 0.09). Complications, including catheter obstruction, leak, abdominal hernia, and peritonitis, were not statistically different between the two techniques over 12 months of survival (P > 0.05). Complications among the catheters with less than a year survival, including obstruction, leak, catheter displacement, hernia, and peritonitis, were not significantly different comparing open surgery with laparoscopic technique (P > 0.05).

Conclusion:

Considering complications, PD catheter implantation through laparoscopic surgery was not statistically different from open surgery, neither for those with less than 12 months of survival nor for those with over a year.

Randomized Controlled Trial Comparing Open Versus Laparoscopic Placement of a Peritoneal Dialysis Catheter and Outcomes: The CAPD I Trial

OBJECTIVE

To determine the best operation technique, open versus laparoscopic, for insertion of a peritoneal dialysis (PD) catheter with regard to clinical success. Clinical success was defined as an adequate function of the catheter 2 - 4 weeks after insertion.

METHODS

All patients with end-stage renal disease who were suitable for PD and gave informed consent were randomized for either open surgery or laparoscopic surgery. A previous laparotomy was not considered an exclusion criterion. Laparoscopic placement had the advantage of pre-peritoneal tunneling, the possibility for adhesiolysis, and placement of the catheter under direct vision. Catheter fixation techniques, omentopexy, or other adjunct procedures were not performed. Other measured parameters were in-hospital morbidity and mortality and post-operative infections.

RESULTS

Between 2010 and 2016, 95 patients were randomized to this study protocol. After exclusion of 5 patients for various reasons, 44 patients received an open procedure and 46 patients a laparoscopic procedure. Gender, age, body mass index (BMI), hypertension, current hemodialysis, severe heart failure, and previous an abdominal operation were not significantly different between the groups. However, in the open surgery group, fewer patients had a previous median laparotomy compared with the laparoscopic group (6 vs 16 patients; p = 0.027). There was no statistically significant difference in mean operation time (36 ± 24 vs 38 ± 15 minutes) and hospital stay (2.1 ± 2.7 vs 3.1 ± 7.3 days) between the groups. In the open surgery group 77% of the patients had an adequate functioning catheter 2 - 4 weeks after insertion compared with 70% of patients in the laparoscopic group (p = not significant [NS]). In the open surgery group there was 1 post-operative death (2%) compared with none in the laparoscopic group (p = NS). The morbidity in both groups was low and not significantly different. In the open surgery group, 2 patients had an exit-site infection and 1 patient had a paramedian wound infection. In the laparoscopic group, 1 patient had a transient cardiac event, 1 patient had intraabdominal bleeding requiring reoperation, and 1 patient had fluid leakage that could be managed conservatively. The survival curve demonstrated a good long-term function of PD.

CONCLUSION

This randomized controlled trial (RCT) comparing open vs laparoscopic placement of PD catheters demonstrates equal clinical success rates between the 2 techniques. Advanced laparoscopic techniques such as catheter fixation techniques and omentopexy might further improve clinical outcome.

Continuous Ambulatory Peritoneal Dialysis Catheter Insertion Technique: A Comparative Study of Percutaneous versus Surgical Insertion

Continuous ambulatory peritoneal dialysis (CAPD) is a standard renal replacement therapy, but there is a lack of consensus for catheter insertion method and type of catheter used. We retrospectively analyzed 140 peritoneal dialysis catheters (PDC) inserted in 139 CAPD patients by two methods; percutaneous (Group “P,” n = 47) and surgical mini laparotomy (Group “S,” n = 93) technique over a 39-month period, with cumulative experience of 2415 catheter-months: 745 catheter-months for Group “P” and 1670 catheter-months for Group “S.” Break-in period was shorter in Group “P” (P = 0.002) whereas primary nonfunction rate was comparable (P = 0.9). The mean catheter survival was better in Group “S” (17.95 ± 10.96 months vs. 15.85 ± 9.41 months in “P” group, P = 0.05) whereas the death-censored and overall catheter survival was comparable in both groups. PDC removal due to refractory peritonitis was also comparable. Mechanical complications were more in “P” group (P = 0.049), leading to higher catheter removal (P = 0.033). The peritonitis rates were higher in “P” group (1 episode per 24.8 catheter-months vs. 1 episode per 34.8 catheter-months in “S” group, P = 0.026) and related to a higher number of rural patients in the group (P = 0.04). Patient survival was comparable. There was no effect on episodes of peritonitis in those CAPD patients who had diabetic etiology or prior hemodialysis catheter-related sepsis, age, and PDC insertion method.

Urine producing peritoneal dialysis catheter

Insertion of a peritoneal dialysis (PD) catheter into the bladder is a rare complication of PD. Herein, we describe a case of an adult patient undergoing PD tube insertion who was found to have the catheter in the urinary bladder. He was treated with PD catheter removal, prophylactic antibiotics and repair of the bladder wall. This report gives a timely reminder of and the need to check for urinary bladder distension prior to PD catheter insertion surgery. Perforating injuries should be considered in patients with symptoms related to the urinary tract and free flow of fluid from the PD tube.

Comparison of Early Mechanical and Infective Complications in First Time Blind, Bedside, Midline Percutaneous Tenckhoff Catheter Insertion with Ultra-Short Break-In Period in Diabetics and Non-Diabetics: Setting New Standards

♦ BACKGROUND: There are no large studies that have examined ultra-short break-in period with a blind, bedside, midline approach to Tenckhoff catheter insertion. ♦ METHODS: Observational cohort study of 245 consecutive adult patients who underwent percutaneous catheter insertion for chronic peritoneal dialysis (PD) at our center from January 2009 to December 2013. There were 132 (53.9%) diabetics and 113 (46.1%) non-diabetics in the cohort. ♦ RESULTS: The mean break-in period for the percutaneous group was 2.68 ± 2.6 days. There were significantly more males among the diabetics (103 [78%] vs 66 [58.4%], p = 0.001). Diabetics had a significantly higher body mass index (BMI) (23.9 ± 3.7 kg/m2 vs 22.2 ± 4 kg/m2, p < 0.001) and lower serum albumin (33.1 ± 6.3 g/L vs 37 ± 6 g/L, p < 0.001) compared with non-diabetics. Poor catheter outflow was present in 6 (4.5%) diabetics and 16 (14.2%) non-diabetics (p = 0.009). Catheter migration was also significantly more common in the non-diabetic group (11 [9.7%] vs 2 [1.5%], p = 0.004). Primary catheter non-function was present in 17(15%) of the non-diabetics and in 7(5.3%) of the diabetics (p = 0.01). There were no mortality or major non-procedural complications during the catheter insertions. Among patients with 1 year of follow-up data, catheter survival (93/102 [91.2%] vs 71/82 [86.6%], p = 0.32) and technique survival (93/102 [91.2%] vs 70/82 [85.4%], p = 0.22) at 1 year was comparable between diabetics and non-diabetics, respectively. ♦ CONCLUSIONS: Percutaneous catheter insertion by practicing nephrologists provides a short break-in period with very low mechanical and infective complications. Non-diabetic status emerged as a significant risk factor for primary catheter non-function presumed to be due to more patients with lower BMI and thus smaller abdominal cavities. This is the first report that systematically compares diabetic and non-diabetic patients.

Long-Term Outcomes of Single-Port Laparoscopic Placement of Peritoneal Dialysis Catheter

INTRODUCTION

Laparoscopic insertion of peritoneal dialysis (PD) catheter has become a preferred method compared to the traditional open technique for PD catheter insertion. We retrospectively report the outcome of 1-port laparoscopic placement PD catheters in our institution.

METHODS

A total of 263 patients with end-stage renal disease who underwent single-trocar laparoscopic PD catheter insertion during a recent 6-year period were reviewed. Laparoscopic technique involves introducing a PD catheter over a stiff guidewire into the abdominal cavity through a 10-mm laparoscopic port. Pertinent clinical variables, procedural complications, and follow-up outcome were analyzed.

RESULTS

There were 182 men and 81 women. The mean age was 56 years. Technical success was 95.8%. Catheter occlusion was the most common early complications (<6 months) that occurred in 4 (1.5%) patients. Late complications (> 6 months) including catheter occlusion, cuff extrusion, catheter leakage, catheter migration, infection, and hernia occurred in 5 patients (1.9%), 2 patients (0.8%), 3 patients (1.1%), 3 patients (1.1%), 6 patients (2.3%), and 4 patients (1.5), respectively. Mean follow-up time was 39 ± 18 months. Catheter survival rate at 1, 2, 3, 4, and 5 years was 96%, 94%, 90%, 85%, and 82%, respectively.

CONCLUSION

Laparoscopic PD catheter implantation via a single-trocar utilizing a stiff guidewire technique is feasible and safe. This method can result in low complication and high catheter survival rate.

Modified Peritoneal Dialysis Catheter Insertion: Comparison with a Conventional Method

PURPOSE

The conventional trocar and cannula method in peritoneal dialysis (PD) catheter insertion has its limitation in clinical setting. The aim of this study was to compare a modified method for percutaneous PD catheter insertion with the conventional method, and demonstrate advantages of the modified method.

MATERIALS AND METHODS

Patients at a single center who had percutaneous PD catheters inserted by nephrologists from January 2006 until September 2012, using either a modified method (group M) or the conventional trocar and cannula method (group C), were retrospectively analyzed, in terms of baseline characteristics, complications experienced up to 3 months after the procedure, and the suitability of the procedure for patients.

RESULTS

Group M included 82 subjects, while group C included 66 cases. The overall early complication rate in group M (1.2%) was significantly lower than that in group C (19.7%) (p<0.001). The catheter revision rate during timeframe for early complications was significantly lower in group M (0%) than in group C (6.1%) (p=0.024). When comparing Procedure time (1 h 3 min±16 min vs. 1 h 36 min±19 min, p<0.01), immediate post-procedural pain (2.43±1.80 vs. 3.14±2.07, p<0.05), and post-procedure days until ambulation (3.95±1.13 days vs. 6.17±1.34 days, p<0.01), group M was significantly lower than group C. There was no significant difference in total hospitalization period (14.71±7.05 days vs. 13.86±3.7 days).

CONCLUSION

Our modified PD catheter insertion method shows its advantages in early complication rate, early complications revision rate, and the patients' conveniences.

Peritoneal dialysis catheter placement technique and complications

Background. This review describes the peritoneal dialysis (PD) catheter implantation techniques for the treatment of PD. The PD catheter-related complications still cause significant morbidity and mortality, resulting in the necessity to switch to haemodialysis (HD) treatment. Methods. Several catheter insertion techniques, using an open surgical approach, laparoscopic and percutaneous techniques have been employed, with their specific early and late complications and failure rates. Results. Despite the similar outcomes of open surgical versus laparoscopic techniques from randomized studies, the laparoscopic insertion has the major advantage of correct catheter positioning in the lower abdomen, with the possibility of adhesiolysis. The minimal invasive percutaneous insertion bears the risk of bowel perforation and catheter malpositioning, and the outcome of this technique is strongly related to the experience of the surgeon. The major complications of these implantation techniques, like bleeding, dialysate leakage and catheter malpositioning, and their management are discussed in our study. Late peritonitis remains the major drawback of PD treatment, with the need of temporary or permanent changeover to the HD treatment in 10% of the patients. Conclusions. Enrichment of the physician's interest and experience, along with a multidisciplinary approach to outline the optimal strategy of PD-catheter insertion and complication of the treatment, may improve the patients' survival and decrease the morbidity.

Implantation of peritoneal catheters by laparotomy: nephrologists obtained similar results to general surgeons

Purpose

To analyze the complications and costs of minilaparotomies performed by a nephrologist (group A) compared with conventional laparotomies performed by a surgeon (group B) for peritoneal catheter implantation.

Setting

Two university hospitals (Santa Sofia and Caldas) in Manizales, Caldas, Colombia.

Methods

The study included stage 5 chronic kidney disease patients, with indication of renal replacement therapy, who were candidates for peritoneal dialysis and gave informed consent for a peritoneal catheter implant. Minilaparotomies were performed by a nephrologist in a minor surgery room under local anesthesia. Conventional laparotomies were performed by a surgeon in an operating room under general anesthesia.

Results

Two nephrologists inserted 157 peritoneal catheters, and seven general surgeons inserted 185 peritoneal catheters. The groups had similar characteristics: the mean age was 55 years, 49.5% were men, and the primary diagnoses were diabetic nephropathy, hypertensive nephropathy, and unknown etiology. The implant was successful for 98.09% of group A and 99.46% of group B. There was no procedure-related mortality. The most frequent complications in the first 30 days postsurgery in group A versus group B, respectively, were: peritonitis (6.37% versus 3.78%), exit-site infection (3.82% versus 2.16%), tunnel infection (0% versus 0.54%), catheter entrapment by omentum (1.27% versus 3.24%), peritoneal effluent spillover (1.91% versus 2.16%), draining failure (4.46% versus 6.49%), hematoma (0% versus 1.08%), catheter migration with kinking (3.18% versus 2.70%), hemoperitoneum (1.27% versus 0%), and hollow viscera accidental puncture (1.91% versus 0.54%). There were no statistically significant differences in the number of complications between groups. In 2013, the cost of a surgeon-implanted peritoneal dialysis catheter in Colombia was US $366 (666,000 COP), whereas the cost of a nephrologist-implanted catheter was US $198 (356,725 COP).

Conclusion

Nephrologist-performed minilaparotomies had similar effectiveness to surgeon-performed conventional laparotomies and were cost-effective; however, the nonuse of general anesthesia may be related with hollow viscera puncture during the procedure.

Comparison of Percutaneous and Open Surgical Techniques for First-Time Peritoneal Dialysis Catheter Placement in the Unbreached Peritoneum

BACKGROUND

The percutaneous Seldinger method of peritoneal dialysis catheter (PDC) insertion has gained favor over recent years whereas traditionally it was reserved for patients considered not fit for general anesthesia. This blind technique is believed to be less safe, and is hence avoided in patients with previous laparotomy incisions. Reports on the success of this method may therefore be criticized for selection bias. In those with no prior abdominal surgery the optimal method of insertion has not been established.

METHODS

We retrospectively reviewed the outcomes of first-time PDC placements comparing the percutaneous (group P) and surgical (group S) insertion techniques in patients without a history of previous abdominal surgery in a single center between January 2003 and June 2010. We assessed catheter survival at 3 and 12 months post-insertion and compared complication rates between the two groups.

RESULTS

A total of 63 percutaneous and 64 surgical catheter insertions were analyzed. No significant difference was noted in catheter survival rates between group P and group S (86.2% vs 80% at 3 months, p = 0.37; and 78.3% vs 71.2% at 12 months, p = 0.42 respectively). Early and overall peritonitis rates were similar (5% vs 5.3%; p = 1, and 3.5 vs 4.9 episodes per 100 patient-months; p = 0.13 for group P and group S respectively). There were also no significant differences between the two groups in exit site leaks (15.9% in group P vs 6.3% in group S; p = 0.15), poor initial drainage (9.5% in group P vs 10.9% in group S, p = 0.34) or secondary drainage failure (7.9% in group P vs 18.8% in group S, p = 0.09).

CONCLUSION

This study illustrates the success and safety of percutaneous PDC insertion compared with the open surgical technique in PD naive patients without a history of prior abdominal surgery. Catheter survival was favorable with percutaneous insertion in this low-risk patient population but larger prospective studies may help to determine whether either method is superior. The percutaneous technique can be recommended as a minimally invasive, cost-effective procedure that facilitates implementing an integrated care model in nephrology practice.

Different outcomes of peritoneal catheter percutaneous placement by nephrologists using a trocar versus the Seldinger technique: the experience of two Brazilian centers

A good catheter implantation technique is important to allow effective peritoneal access function and long-term technique survival. Studies regarding results obtained by nephrologists in comparison with different techniques have been limited. The aim of this study was to investigate the rate of early catheter-related complications and catheter survival in two Brazilian centers, according to two different percutaneous methods of catheter implantation performed by nephrologist team. Adult incident patients recruited from January 2006 to July 2013 having undergone first peritoneal dialysis (PD) catheter implantation were included in the analysis. Mechanical and infectious early complication rates were defined as time to the first event occurring up to 3 months. Four hundred and forty-five consecutive Tenckhoff catheters were implanted by nephrologist team percutaneously after antibiotic prophylaxis in an operating room: trocar was used in 349 (78.4 %) and Seldinger technique (ST) in 99 (21.6 %). The ST was significantly associated with a lower rate of leak (16.3 vs 3 %, p = 0.03) and outflow failure due to tip catheter migration (22.6 vs 10.1 %, p = 0.04), while early infectious complication rates were similar between the two groups (p = 0.59). Long-term catheter survival was higher in Seldinger group (log-rank, p = 0.031). By Cox multivariate analysis, adjusted for age, sex, and diabetes, the ST remained independently associated with better catheter survival [HR 0.681 (0.462-0.910), p = 0.04]. As conclusion, our experience showed better PD outcomes with the ST than trocar method of catheter implantation by nephrologist.

Percutaneous peritoneal dialysis catheter insertion by a nephrologist: a new, simple, and safe technique

BACKGROUND

Insertion of the peritoneal dialysis (PD) catheter by a nephrologist has been encouraged by several studies. The ultimate goal is to provide safe, timely, and effective catheter insertion without an unduly long wait time or delay. The success of PD depends partly on the ease of catheter insertion. We developed a new technique for percutaneous PD catheter insertion by nephrologists. Our new technique, in addition to being easy, proved to be safe and to eliminate the need for the peel-away sheath.

METHODS

Data were collected prospectively on all patients having a PD catheter inserted by a nephrologist using our new technique (40 catheters in 38 patients). All catheters were evaluated for infectious and mechanical complications.

RESULTS

The mean duration of the procedure from skin sterilization to the end of insertion was 24 ± 3 minutes. No bowel perforation or serious hemorrhage was recorded. Poor initial drainage was recorded in 12.5% of the catheters (n = 5) during the 4 weeks after insertion. The incidence of early exit-site leakage was 2.5% (1 catheter). Episodes of exit-site infection occurred in 5.0% and 12.5% of catheters (within 1 month and by the end of study period respectively). Two episodes of peritonitis were reported by the end of the 12-month period. Catheter survival was 95.0% and 87.5% at 6 months and 12 months respectively.

CONCLUSIONS

Percutaneous bedside placement of PD catheters using our new technique is safe and carries less morbidity in terms of bowel perforation, catheter-related infection, and exit-site leak. In addition, our new technique appears to have a high success rate and to offer considerable savings in terms of operating time.

Comparison between the fixation of peritoneal dialysis catheters to the peritoneal wall and the conventional placement technique: clinical experience and follow-up of a new implant technique for peritoneal dialysis catheters

Peritoneal dialysis (PD) catheters often become severely dislocated, which may lead to malfunction. With the aim of preventing this complication, we have developed a simple method of fixing the catheter downwards in the peritoneal cavity (fixation technique), a technique that does not require a laparoscope. Sixteen patients were implanted using the conventional placement technique and 25 patients were implanted using the fixation technique. The location of the catheter tip was classified from grade 1 (downward, normal) to 5 (dislocated). The frequency of dislocation (defined as the extended time and/or decrease in volume when draining the PD solution) was measured for both the fixation technique and conventional placement technique. There was a significant difference in grade between the fixation technique (2.72 ± 1.01) and conventional technique (3.92 ± 1.31). The time until first dislocation was significantly different between the fixation technique (59.3 ± 48.1 days) and conventional technique (8.8 ± 14.6 days). The time until any dislocation was significantly different between the fixation technique (69.2 ± 41.9 days) and conventional technique (12.9 ± 13.7 days). Complications were not significantly different between the fixation technique and conventional technique. The fixation technique appears to be simple, safe, and useful for preventing severe dislocation and for lengthening the time until dislocation in PD patients.

Laparoscopic-assisted placement of a peritoneal dialysis catheter with partial omentectomy and omentopexy in dogs: an experimental study

OBJECTIVE

To describe a technique of laparoscopic-assisted placement of a peritoneal dialysis (PD) catheter with simultaneously performed partial omentectomy and omentopexy.

STUDY DESIGN

Pilot experimental study.

ANIMALS

Beagle dogs (n = 6).

METHODS

After placement of 1 sub-umbilical laparoscope portal and 1 instrument portal in the left cranial abdominal quadrant, laparoscopic-assisted partial omentectomy, and omentopexy were performed, and a modified Tenckhoff PD catheter was placed under laparoscopic guidance. A modified dialysis protocol was used twice daily for 4 days. The feasibility of the procedure, surgical duration, operative complications, and dialysis efficacy were evaluated. Postoperative pain and inflammation were graded (0-3).

RESULTS

The procedure was successfully performed in all dogs with a median operating time of 25 minutes. No operative complications occurred. Procedure-related postoperative pain and inflammation were minimal. Eight consecutive PD procedures were successfully performed, and no leakage or obstruction was observed.

CONCLUSIONS

Laparoscopic-assisted partial omentectomy and omentopexy can be performed at the same time as PD catheter placement with minimal morbidity.

The choice of peritoneal dialysis catheter implantation technique by nephrologists

Peritoneal dialysis catheter (PDC) is the lifeline of peritoneal dialysis (PD) patients. One of the critical issues for successful PD is a well-functioning PDC which is timely inserted. It is the implantation technique rather than the catheter design that determines the outcome of the catheter. Dedication in acquiring the appropriate technique is vital to the success of a PD program. In this paper, we discuss the pros and cons of various techniques used for PDC implantation. A detailed description of PDC implantation by using the minilaparotomy method is presented. We strongly recommend mini-laparotomy as the method of choice for PDC implantation by nephrologists.

A comparative analysis of percutaneous and open surgical techniques for peritoneal catheter placement

BACKGROUND

Peritoneal dialysis (PD) is the preferred available option of renal replacement therapy for a significant number of end-stage kidney disease patients. A major limiting factor to the successful continuation of PD is the long-term viability of the PD catheter (PDC). Bedside percutaneous placement of the PDC is not commonly practiced despite published data encouraging use of this technique. Its advantages include faster recovery and avoidance of general anesthesia.

METHODS

We carried out a retrospective analysis of the outcomes of 313 PDC insertions at our center, comparing all percutaneous PDC insertions between July 1998 and April 2010 (group P, n = 151) with all surgical PDC insertions between January 2003 and April 2010 (group S, n = 162).

RESULTS

Compared with group P patients, significantly more group S patients had undergone previous abdominal surgery or PDC insertion (41.8% vs 9.3% and 33.3% vs 3.3% respectively, p = 0.00). More exit-site leaks occurred in group P than in group S (20.5% vs 6.8%, p = 0.002). The overall incidence of peritonitis was higher in group S than in group P (1 episode in 19 catheter-months vs 1 episode in 26 catheter-months, p = 0.017), but the groups showed no significant difference in the peritonitis rate within 1 month of catheter insertion (5% in group P vs 7.4% in group S, p = 0.4) or in poor initial drainage or secondary drainage failure (9.9% vs 11.7%, p = 0.1, and 7.9% vs 12.3%, p = 0.38, for groups P and S respectively).Technical survival at 3 months was significantly better for group P than for group S (86.6% vs 77%, p = 0.037); at 12 months, it was 77.7% and 68.7% respectively (p = 0.126). No life-threatening complications attributable to the insertion of the PDC occurred in either group.

CONCLUSIONS

Our analysis demonstrates further encouraging outcomes of percutaneous PDC placement compared with open surgical placement. However, the members of the percutaneous insertion group were primarily a selected subset of patients without prior abdominal surgery or PDC insertion, therefore limiting the comparability of the groups. Studies addressing such confounding factors are required. Local expertise in catheter placement techniques may affect the generalizability of results.

Non-infectious complications of continuous ambulatory peritoneal dialysis and their impact on technique survival

Data on non-infectious complications of continuous ambulatory peritoneal dialysis (CAPD) are sparingly reported from different centres of the country. We studied the non-infectious complications in patients of end stage-renal disease (ESRD) undergoing CAPD. Double-cuffed straight catheter was inserted in all patients using the surgical method and CAPD was started on the 15^th day of catheter insertion. The nature of non-infectious complications was noted during follow-up in these patients. Forty-five (male 31, female 14) patients with the mean age of 54.5±11.6 years were studied. Diabetic nephropathy was the most common (59.5%) cause of ESRD. Overall, non-infectious complications were noted in 18/45 (40%) cases. Ultrafiltration failure was the most common (15.5%) followed by incisional hernia (6.6%), exit site leak (4.4%), hydrothorax (4.4%), catheter malposition (4.4%), scrotal swelling (2.2%) and hemoperitoneum (2.2%). Patients with ultrafiltration failure were either shifted to hemodialysis or underwent renal transplantation. The remaining (62%) non-infectious complications did not affect the catheter survival and CAPD could be continued. Non-infectious complications occurred in 40% of our CAPD patients and ultrafiltration failure was the most common (15.5%). A majority (62%) of the complications did not affect catheter survival.

Percutaneous CAPD catheter insertion by a nephrologist versus surgical placement: A comparative study

Peritoneal dialysis catheter (PDC) for continuous ambulatory peritoneal dialysis is inserted into the abdominal cavity either by a surgeon, interventional radiologist or nephrologist. Various innovations have been made in the methodology adopted in the placement of the PDC. We compared the percutaneous approach for PDC insertion with the open surgical technique. From January 2006 to May 2007, 25 of the 46 catheters were successfully inserted using the percutaneous Seldinger technique. The incision size (2.6 +/- 0.7 vs 7.3 +/- 0.6 cm) and the length of hospital stay (11.9 +/- 5.9 vs 17.3 +/- 6.8 d) were considerably less in the percutaneously placed group compared to the surgically placed group. Early initiation of exchanges and reduction in the expenses were other important advantages of this method.

Fluoroscopically guided percutaneous peritoneal dialysis catheter placement: single center experience and review of the literature

Experiences with minimally invasive techniques for peritoneal dialysis (PD) catheter placement are being increasingly described. Percutaneous placement of catheters using ultrasound and fluoroscopic guidance has reduced the risk of complications and has led to successful long-term catheter function. An interventional radiology catheter placement capability was established at our facility and it serves as the basis for this report. We performed a retrospective analysis of patients in a tertiary care center in Northern California who required PD between July 2005 and October 2008. Patients underwent PD catheter placement in an interventional radiology suite by the radiologist using a percutaneous Seldinger technique that was guided by fluoroscopy. Sixty-four patients between the ages of 25 and 90 were referred for fluoroscopic PD catheter placement by an interventional radiologist. If clinically indicated, PD was initiated within days of catheter placement. Minor complications were noted: four with minor bleeding, three with catheter migration, and one with temporary exit-site leakage. No bowel or bladder perforations were encountered. Fluoroscopically guided PD catheter placement by interventional radiologists can be a safe and cost-effective strategy to initiate acute or chronic PD. This approach could reduce the need for temporary vascular access and expedite the initiation of PD therapy by eliminating the delays in catheter placement often associated with surgical consultation and operating room scheduling.

Effect of Prior Abdominal Surgery, Peritonitis, and Adhesions on Catheter Function and Long-Term Outcome on Peritoneal Dialysis

Adhesions from previous surgery and peritonitis can lead to peritoneal dialysis catheter insertion failure, visceral injury, and poor dialysis function. Employing a laparoscopic approach, the effect of adhesiolysis on mechanical catheter complications and long-term catheter survival was prospectively examined in 436 catheter placement procedures having a 57.8 per cent prevalence rate of previous surgery. Adhesiolysis was required in 31.8 per cent of cases with prior surgery and in 3.3 per cent of procedures without previous operations. The incidence of adhesiolysis was directly related to the number of prior surgeries ( P < 0.0001). The incidence of catheter insertion failure from extensive adhesions was 1.8 per cent. Survival probability free from catheter obstruction was lower in patients requiring adhesiolysis compared with subjects with prior surgery not requiring adhesiolysis ( P = 0.01). Laparoscopic rescue procedures limited catheter losses from flow obstruction to only 0.7 per cent. As a result, long-term catheter survival was not different among patients regardless of prior surgery and/or adhesion status ( P = 0.2). Scars on the abdomen and prior peritonitis do not predict the extent of adhesions and should not be used to judge eligibility for peritoneal dialysis. Presently, laparoscopy is the only practical way to provide optimal peritoneal access in patients with a history of surgery and peritonitis.

One-Port Laparoscopic Technique for Placement of Tenckhoff Peritoneal Dialysis Catheters: Report of Seventy-Nine Procedures

Background

Laparoscopic techniques for placement of peritoneal dialysis catheters are becoming increasingly popular. In this paper, we report the results of one-port laparoscopic placement of Tenckhoff catheters in 79 patients in our center.

Method

Videoscopic monitoring was performed via a port inserted in the left upper quadrant and the catheter was placed via a pull-apart sheath through an incision near the umbilicus. The tip and the deep cuff of the catheter were placed into the true pelvis (on the urinary bladder) and into the rectus sheath respectively. A subcutaneous tunnel was created and a point midway on the umbilico-crestal line was selected as the exit site of the catheter. Catheters were capped for 2 weeks before initiation of peritoneal dialysis. Mean duration of the operation was 25 minutes.

Results

Four patients died during the follow-up period, all due to other medical problems, and 4 patients underwent renal transplantation. During a 48-month follow-up, catheter-related complications were catheter migration (1.3%; month 1), dialysate leakage (1.3%; month 1), port-site hernia (3.8%; after 6 months), exit-site infection (2.5%; months 1 and 9), and bacterial peritonitis (2.5%; after 6 months). Catheter survival was 97.2% in our series.

Conclusion

We obtained a low complication rate and a high catheter survival rate with this one-port laparoscopic technique.

Comparison of outcomes of peritoneal dialysis catheters placed by the fluoroscopically guided percutaneous method versus directly visualized surgical method

PURPOSE

To compare complications in catheters placed by the fluoroscopically guided percutaneous method versus directly visualized surgery.

MATERIALS AND METHODS

A retrospective cohort analysis was performed. Mechanical complication rate data, including catheter leakage, malfunction, malposition, and bleeding, were compared between the two groups over a 1-year follow-up period. Additionally, exit site infection rates, tunnel infection rates, and peritonitis episodes were evaluated based on the incidence within 30 days of insertion and 30 days to 1 year after insertion.

RESULTS

A total of 101 patients were analyzed (52 in the fluoroscopic guidance group, 49 in the direct visualization group). Prevalence of diabetes was similar: 56% in the directly visualized surgery group and 47% in the fluoroscopically guided treatment group (P = .37). Although the difference was not significant, complication rates tended to be higher in the directly visualized surgery group compared with the percutaneous placement group. These included catheter leakage (13% vs 4%; P = .093), malfunction (11% vs 9%; P = .73), malposition (13% vs 6%; P = .20), and bleeding (8% vs 2%; P = .21). There were no differences in early and late exit site infections and tunnel infections. Late peritonitis rates were lower in the percutaneous placement group (20%) than in the direct visualization group (42%) (P = .018). Diabetic patients had approximately six times greater risk of catheter malfunction than nondiabetic patients regardless of method of catheter insertion.

CONCLUSIONS

Placement of peritoneal dialysis catheters percutaneously with fluoroscopic guidance is as safe as placement with direct visualization techniques.

The comparison in terms of early complications of a new technique and percutaneous method for the placement of CAPD catheters

BACKGROUND

Starting continuous ambulatory peritoneal dialysis (CAPD) immediately after insertion of a peritoneal dialysis catheter is essential in end-stage renal disease (ESRD). In relation to the insertion methods, various mechanical and infectious complications may arise. In this study, we aimed to compare early complications of the laparoscopic tunneling method of CAPD placement that we developed recently in order to minimize the complications, with those of the conventional percutaneous method.

SUBJECTS AND METHOD

Included in this study were 12 consecutive patients with ESRD to whom we introduced catheters for CAPD by way of laparoscopic tunneling between April 2003 and July 2003 and followed up for at least 6 months, and 30 patients to whom the catheters were placed percutaneously in the same time period with the same follow-up time. The complications seen during the first 6 months after catheter placement with these two different methods were compared.

RESULTS

In all of the subjects, dialysis was started soon after catheter placement. No peroperative morbidity was seen in any of the patients. While with laparoscopic tunneling method no mechanical problem was seen, the percutaneous method resulted in early leakage in 10%, pericatheter bleeding in 3.3%, and hernia in 3.3% of the patients. As infectious complications, peritonitis occurred as one episode/36 patient-months in laparoscopic tunneling and one episode/22.5 patient-months in percutaneous method; catheter insertion site infection was seen in none in the laparoscopic method, while one episode/90patient-months was seen with the percutaneous method. Tunnel infection did not arise in any of the subjects.

CONCLUSION

The authors of this study think that the peritoneal tunneling method for introducing CAPD, which has been recently developed and began to be routinely used by them, is rather safe in terms of early complications.