Comparison of Dialysis Catheter Insertion and Complications Under Ultrasound Guidance with or without Fluoroscopic Assistance: A Randomized Study.

Background: Fluoroscopy is considered to be the gold standard and an essential requirement for catheter insertion. However, there is a paucity of data regarding the outcomes in ultrasound (USG)-guided insertion with and without fluoroscopy. We compared the complications of USG-guided tunneled dialysis catheter (TDC) insertion with and without fluoroscopy assistance. Materials and Methods: This was a single-center randomized controlled trial (RCT) done in a tertiary hospital in North India. After screening 153 patients, 149 were enrolled: 87 were randomized into USG-guided insertion without fluoroscopy (group A) and 62 were randomized into USG-guided insertion with fluoroscopy (group B). All insertions were done in a dedicated procedure room by trained nephrologists. Outcomes were analyzed at baseline and at 1-month follow-up. Mechanical complications as well as infective and thrombotic complications were compared between both the groups. Results: TDC insertion was successful (100%) in all the study participants (N = 149). One hundred twenty-nine catheters (86.5%) were inserted in the first attempt, 19 (12.5%) in the second attempt, and one catheter insertion required three attempts for insertion. The mean age of study participants was 43 years (±16.5), and males constituted 63% of the study cohort. Baseline laboratory characteristics of the two groups were comparable. The mean time of catheter insertion was 41.26 min (standard deviation [SD] 11.8) in group A and 47.74 min (SD 17.2) in group B (P = 0.007). The mean score of ease of catheter insertion, exit site bleed, infective and mechanical complications were not different between the two groups. Conclusion: Our study concluded that fluoroscopy has no additional advantage in reducing mechanical, infective, or thrombotic complications. In experienced hands, USG-guided TDC insertion without fluoroscopy assistance is as good as the insertion done with fluoroscopy assistance, with a shorter procedure time.

Comparing Male and Female Resident Physicians in Central Venous Catheter Insertion Self-confidence and Competency: A Retrospective Cohort Study.

BACKGROUND: Female physicians often report lower self-confidence in their procedural and clinical competency compared to male physicians. There is limited data regarding self-reported confidence of female versus male trainees and any relation to objective competency in central venous catheter insertion. OBJECTIVE: To analyze differences between male and female trainees in self-confidence and skill-based outcomes in placing central venous catheters. DESIGN: Using data from a central venous catheter simulation training program at a large tertiary medical center, we performed linear regressions to analyze confidence difference pre- and post-training, number of restarts, and number of cannulation attempts while controlling for baseline demographic characteristics of the sample. PARTICIPANTS: PGY-1 physician residents in all residency specialties who insert central venous catheters in the clinical setting at a tertiary academic center with a sample size of 281 residents. MAIN MEASURES: Confidence difference pre- and post-training measured on a Likert scale 1-5, number of restarts (novel global assessment variable), and number of cannulation attempts during the competency evaluation. KEY RESULTS: Female trainees had both lower pre-program confidence (1.35 versus 1.74 out of 5, p < 0.001) and lower post-program confidence (3.77 versus 4.12 out of 5, p = 0.0021) as compared to male trainees. There was no statistically significant difference in number of restarts (95% CI - 0.073 to 0.368, p = 0.185) or cannulation attempts (95% CI - 0.039 to 0.342, p = 0.117) between sexes in linear regressions controlled for age, specialty designation, prior central venous catheter training, prior ultrasound guided vessel cannulation training, and pre-training confidence level. CONCLUSIONS: Female trainees rated their confidence significantly lower than their male counterparts both before and after the training program, despite no significant difference in skill-based outcomes. We discuss potential implications for trainees acquiring procedural skills during residency and for physician educators as they design training programs and delegate procedural opportunities.

Flow reduction due to arterial catheterization during stroke treatment - A computational study using a distributed compartment model.

The effectiveness of various stroke treatments depends on the anatomical variability of the cerebral vasculature, particularly the collateral blood vessel network. Collaterals at the level of the Circle of Willis and distal collaterals, such as the leptomeningeal arteries, serve as alternative avenues of flow when the primary pathway is obstructed during an ischemic stroke. Stroke treatment typically involves catheterization of the primary pathway, and the potential risk of further flow reduction to the affected brain area during this treatment has not been previously investigated. To address this clinical question, we derived the lumped parameters for catheterized blood vessels and implemented a corresponding distributed compartment (0D) model. This 0D model was validated against an experimental model and benchmark test cases solved using a 1D model. Additionally, we compared various off-center catheter trajectories modeled using a 3D solver to this 0D model. The differences between them were minimal, validating the simplifying assumption of the central catheter placement in the 0D model. The 0D model was then used to simulate blood flows in realistic cerebral arterial networks with different collateralization characteristics. Ischemic strokes were modeled by occlusion of the M1 segment of the middle cerebral artery in these networks. Catheters of different diameters were inserted up to the obstructed segment and flow alterations in the network were calculated. Results showed up to 45% maximum blood flow reduction in the affected brain region. These findings suggest that catheterization during stroke treatment may have a further detrimental effect for some patients with poor collateralization.

A rare case of fatal rectal perforation and sepsis following traumatic urinary catheterization.

This case report details a fatal rectal perforation and sepsis in a comorbid 96-year-old male after traumatic urinary catheterization, highlighting the risks of IDC management in elderly patients with complex health backgrounds. Despite maximal medical therapy, including escalated antibiotics and ICU care, the patient died from septic shock linked to improper catheter insertion by a non-specialist nurse in the community. This case emphasizes the urgent need for better catheterization practices, specialized nursing education, and clear guidelines to prevent such outcomes.

A one-dimensional computational model for blood flow in an elastic blood vessel with a rigid catheter.

Strokes are one of the leading causes of death in the United States. Stroke treatment involves removal or dissolution of the obstruction (usually a clot) in the blocked artery by catheter insertion. A computer simulation to systematically plan such patient-specific treatments needs a network of about 105 blood vessels including collaterals. The existing computational fluid dynamic (CFD) solvers are not employed for stroke treatment planning as they are incapable of providing solutions for such big arterial trees in a reasonable amount of time. This work presents a novel one-dimensional mathematical formulation for blood flow modeling in an elastic blood vessel with a centrally placed rigid catheter. The governing equations are first-order hyperbolic partial differential equations, and the hypergeometric function needs to be computed to obtain the characteristic system of these hyperbolic equations. We employed the Discontinuous Galerkin method to solve the hyperbolic system and validated the implementation by comparing it against a well-established 3D CFD solver using idealized vessels and a realistic truncated arterial network. The results showed clinically insignificant differences in steady flow cases, with overall variations between 1D and 3D models remaining below 10%. Additionally, the solver accurately captured wave reflection phenomena at domain discontinuities in unsteady cases. A primary advantage of this model over 3D solvers is its ease in obtaining a discretized geometry of complex vasculatures with multiple arterial branches. Thus, the 1D computational model offers good accuracy and applicability in simulating complex vasculatures, demonstrating promising potential for investigating patient-specific endovascular interventions in strokes.

Effects of comprehensive nursing interventions on wound pain in patients undergoing catheter insertion for peritoneal dialysis.

This study investigates the effects of comprehensive nursing interventions on wound pain in patients undergoing catheter insertion for peritoneal dialysis. Sixty patients who underwent catheter insertion for peritoneal dialysis from January 2021 to January 2023 at our hospital were selected as subjects and randomly divided into an experimental group and a control group using a random number table method. The control group received routine nursing care, while the experimental group was subjected to comprehensive nursing interventions. The study compared the impact of nursing measures on visual analogue scale (VAS), self-rating anxiety scale (SAS), self-rating depression scale (SDS) and nursing satisfaction between the two groups. The analysis revealed that on the third, fifth and seventh days post-intervention, the experimental group's wound VAS scores were significantly lower than those of the control group (p < 0.001). Furthermore, levels of anxiety and depression were markedly lower in the experimental group compared with the control group (p < 0.001). In addition, the nursing satisfaction rate was significantly higher in the experimental group than in the control group (96.67% vs. 73.33%, p = 0.011). This study indicates that the application of comprehensive nursing interventions in patients undergoing catheter insertion for peritoneal dialysis is highly effective. It can alleviate wound pain and negative emotions to a certain extent, while also achieving high patient satisfaction, thus demonstrating significant clinical value.

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.

Policresulen to treat hypergranulation tissue around drainage tubes.

OBJECTIVE: To evaluate the efficacy of policresulen for the treatment of hypergranulation. METHOD: This was a retrospective study of patients with percutaneous catheters. Inpatients from two hospitals and those from outpatient clinics were included. Approximately 2ml of 50% policresulen solution was applied to hypergranulation tissue, which was then immediately pressed with gauze for 1-3 minutes using light pressure. When haemostasis was achieved and the granulation tissue size decreased, the procedure was terminated. RESULTS: A total of eight patients (four females and four males) were included in this study. Effective haemostasis was achieved in all patients. The size of the hypergranulation tissue decreased with policresulen treatment, and resolved completely in one patient. There were no complications. Hypergranulation tissue recurred in one patient. Haemostasis was successfully achieved after repeated procedures. CONCLUSION: The findings of this study showed policresulen to be an inexpensive, easy treatment for hypergranulation at catheter insertion sites.

Catheter Event Rates in Medical Compared to Surgical Peritoneal Dialysis Catheter Insertion.

Introduction: How patient, center, and insertion technique factors interact needs to be understood when designing peritoneal dialysis (PD) catheter insertion pathways. Methods: We undertook a prospective cohort study in 44 UK centers enrolling participants planned for first catheter insertion. Sequences of regressions were used to describe the associations linking patient and dialysis unit-level characteristics with catheter insertion technique and their impact on the occurrence of catheter-related events in the first year (catheter-related infection, hospitalization, and removal). Factors associated with catheter events were incorporated into a multistate model comparing the rates of catheter events between medical and surgical insertion alongside treatment modality transitions and mortality. Results: Of 784 first catheter insertions, 466 (59%) had a catheter event in the first year and 61.2% of transitions onto hemodialysis (HD) were immediately preceded by a catheter event. Catheter malfunction was less but infection was more common with surgical compared with medical insertions. Participants at centers with fewer late presenters and more new dialysis patients starting PD, had a lower probability of a catheter event. Adjusting for these factors, the hazard ratio for a catheter event following insertion (medical vs. surgical) was 0.70 (95% confidence interval [CI] 0.43 to 1.13), and once established on PD 0.77 (0.62 to 0.96). Conclusion: Offering both medical and surgical techniques is associated with lower catheter event rates and keeps people on PD for longer.

Thoracic duct cannulation during left internal jugular vein cannulation: A case report.

BACKGROUND: Central venous catheter insertion is an invasive procedure that can cause complications such as infection, embolization due to air or blood clots, pneumothorax, hemothorax, and, rarely, chylothorax due to damage to the thoracic duct. Herein, we report a case of suspected thoracic duct cannulation that occurred during left central venous catheter insertion. Fortunately, the patient was discharged without any adverse events related to thoracic duct cannulation. CASE SUMMARY: A 46-year-old female patient presented at our department to undergo cytoreductive surgery and hyperthermic intraperitoneal chemotherapy. During anesthesia, we decided to insert a central venous catheter through the left internal jugular vein because the patient already had a chemoport through the right central vein. During the procedure, blood reflux was observed when the needle tip was not within the ultrasound field of view. We did not try to find the tip; however, a guide wire and a central venous catheter were inserted without any resistance. Subsequently, when inducing blood reflux from the distal port of the central venous catheter, only clear fluid, suspected to be lymphatic fluid, was regurgitated. Further, chest X-ray revealed an appearance similar to that of the path of the thoracic duct. Given that intravenous fluid administration was not started and no abnormal fluid collection was noted on preoperative chest X-ray, we suspected thoracic duct cannulation. CONCLUSION: It is important to use ultrasound to confirm the exact position of the needle tip and guide wire path.

Improvement of central vein ultrasound-guided puncture success using a homemade needle guide-a simulation study.

BACKGROUND: Out-of-plane (OOP) approach is frequently used for ultrasound-guided insertion of central venous catheter (CVC) owing to its simplicity but does not avoid mechanical complication. In-plane (IP) approach might improve safety of insertion; however, it is less easy to master. We assessed, a homemade needle guide device aimed to improve CVC insertion using IP approach. METHOD: We evaluated in a randomized simulation trial, the impact of a homemade needle guide on internal jugular, subclavian and femoral vein puncture, using three approaches: out-of-plane free hand (OOP-FH), in-plane free hand (IP-FH), and in-plane needle guided (IP-NG). Success at first pass, the number of needle redirections and arterial punctures was recorded. Time elapsed (i) from skin contact to first skin puncture, (ii) from skin puncture to successful venous puncture and (iii) from skin contact to venous return were measured. RESULTS: Thirty operators performed 270 punctures. IP-NG approach resulted in high success rate at first pass (jugular: 80%, subclavian: 95% and femoral: 100%) which was higher than success rate observed with OOP-FH and IP-FH regardless of the site (p = .01). Compared to IP-FH and OOP-FH, the IP-NG approach decreased the number of needle redirections at each site (p = .009) and arterial punctures (p = .001). Compared to IP-FH, the IP-NG approach decreased the total procedure duration for puncture at each site. CONCLUSION: In this simulation study, IP approach using a homemade needle guide for ultrasound-guided central vein puncture improved success rate at first pass, reduced the number of punctures/redirections and shortened the procedure duration compared to OOP and IP free-hand approaches.

Effect of rapid cycle deliberate practice in peripheral intravenous catheters insertion training: A simulation experimental study.

AIM: to compare the effect of rapid cycle deliberate practice simulation training with skill-training simulation on peripheral intravenous catheter insertion for Licensed Practical Nurses. BACKGROUND: The use of peripheral intravenous catheters is associated with high rates of complications, although it is widely used in clinical practice. Training strategies to ensure good performance can minimize the risks inherent to this procedure. DESIGN: A randomized simulation experimental pre-post interventional study. METHODS: Sixty participants were allocated to intervention (n = 30) or control (n = 30) groups. Participants allocated to the intervention group were trained through the Rapid cycle deliberate practice simulation strategy, while participants in the control group were trained through the skill-training simulation strategy. A pre-test was applied before any intervention and a post-test after intervention. The primary outcome was the performance in the peripheral intravenous catheter insertion skill. The comparison of correct performance in the tests was analyzed intergroup and intragroup. The effect size of the interventions was also analyzed. The t-Student and Mann-Whitney tests compared the difference between the groups. The training effect was calculated by Cohen's dm and Glass's Δ measures. RESULTS: Performance between the pre-post-test increased from 59.4% to 96% (p < 0.001) in the intervention group and from 57.8% to 93.5% in the control group (p < 0001). There was no statistical difference between the groups after intervention (p = 0225). Cohen's dm measurement was 2.95 and 3.59 in the control and intervention groups, respectively. CONCLUSIONS: The rapid cycle deliberate practice simulation strategy resulted in Licensed Practical Nurses' performance improvements in peripheral intravenous catheter insertion, evidenced by the increase of correct performance actions in the post-test compared to the pre-test. However, with no statistical difference compared to the skill-training simulation strategy.

WireSafeTM - A pilot study of a novel safety engineered device designed to prevent guidewire retention and reduce sharps injuries during central venous catheter insertion.

Background: Guidewire retention and sharps injury during central venous catheter insertion are errors that cause patient and healthcare professional harm. The WireSafeTM is a novel procedure safety pack engineered to prevent guidewire retention and sharps injury during central venous catheter insertion. This is a pilot study aimed to determine its acceptability, usability and safety during clinical practice. Methods: An observational time and motion study was conducted comparing central venous catheter insertion and sharps disposal practice using standard versus WireSafeTM techniques. One-year following implementation, a structured survey was conducted to determine clinician opinion and experiences of using the WireSafeTM. Results: 15 procedures were observed using standard practice and 16 using the WireSafeTM technique. The WireSafeTM technique decreased the time taken from removal of the guidewire to disposal of sharps (standard 11.4 ± 5.6 min vs WireSafeTM 8.7 ± 1.4 min, p = 0.035), as well as total procedure time (standard 16 ± 7 min vs WireSafeTM 14.2 ± 2 min, p = 0.17), although this latter trend did not reach significance. Clinicians frequently practiced unsafe behaviour during sharps disposal in the standard group (53%), but when using the WireSafeTM technique, 100% exhibited safe practice by transferring sharps to the bin inside the sealed WireSafeTM box. One-year following implementation, 20 clinicians participated in the structured survey. Clinicians across three different departments used the WireSafeTM in varying clinical situations and reported that its use for central line insertion was either easier (10/20) or no different (10/20) compared to standard practice. All clinicians (20/20) felt that the WireSafeTM reduced the risk of guidewire retention and all stated that they approved of the WireSafeTM technique, and supported its use for convenience and safety benefits. Conclusion: Utilising the WireSafeTM for central line insertion facilitated earlier and safer sharps disposal, and the device was well supported by clinicians for its convenience and safety benefits.

Clinical Benefits of Laparoscopic Adhesiolysis during Peritoneal Dialysis Catheter Insertion: A Single-Center Experience.

Background and Objectives: In peritoneal dialysis (PD) therapy, intra-abdominal adhesions (IAAs) can cause catheter insertion failure, poor dialysis function, and decreased PD adequacy. Unfortunately, IAAs are not readily visible to currently available imaging methods. The laparoscopic approach for inserting PD catheters enables direct visualization of IAAs and simultaneously performs adhesiolysis. However, a limited number of studies have investigated the benefit/risk profile of laparoscopic adhesiolysis in patients receiving PD catheter placement. This retrospective study aimed to address this issue. Materials and Methods: This study enrolled 440 patients who received laparoscopic PD catheter insertion at our hospital between January 2013 and May 2020. Adhesiolysis was performed in all cases with IAA identified via laparoscopy. We retrospectively reviewed data, including clinical characteristics, operative details, and PD-related clinical outcomes. Results: These patients were classified into the adhesiolysis group (n = 47) and the non-IAA group (n = 393). The clinical characteristics and operative details had no remarkable between-group differences, except the percentage of prior abdominal operation history was higher and the median operative time was longer in the adhesiolysis group. PD-related clinical outcomes, including incidence rate of mechanical obstruction, PD adequacy (Kt/V urea and weekly creatinine clearance), and overall catheter survival, were all comparable between the adhesiolysis and non-IAA groups. None of the patients in the adhesiolysis group suffered adhesiolysis-related complications. Conclusions: Laparoscopic adhesiolysis in patients with IAA confers clinical benefits in achieving PD-related outcomes comparable to those without IAA. It is a safe and reasonable approach. Our findings provide new evidence to support the benefits of this laparoscopic approach, especially in patients with a risk of IAAs.

Iatrogenic injury to the subclavian artery during central venous access.

Subclavian artery injury during central venous line placement is a potentially life-threatening complication. Due to historically high mortality rates with attempted manual pressure for haemostasis, the current favoured method of repair is by open or endovascular means. This case describes the management of a central venous catheter placed through the internal jugular vein into the subclavian artery via a supraclavicular puncture. CT angiography revealed the arterial injury located 1 cm distal to the vertebral artery origin. Under fluoroscopic guidance in an endovascular hybrid theatre, a covered stent was deployed across the affected segment of the subclavian artery which resulted in occlusion of the vertebral artery origin to attain safe proximal seal. This was done during simultaneous removal of the catheter and manual pressure over the internal jugular vein. There were no complications and the patient recovered well post-procedure. This case highlights the importance of appropriate ultrasound techniques for central catheter insertion for precise visualisation to prevent inadvertent injury to distal structures. CT angiography is useful in planning endovascular management. Occlusion of the vertebral artery in this case did not result in any neurological complications.

Laparoscopic peritoneal dialysis catheter insertion: an oasis harnessed-experience and results at a tertiary care centre in India.

BACKGROUND: Peritoneal dialysis is a life sustaining renal replacement therapy for patients with end stage renal disease. In comparison to hemodialysis it offers better mobility and independence to patients. A number of techniques including open, laparoscopic and fluoroscopy guided, and their modifications, have been described for intraperitoneal catheter insertion. We describe our technique and results of laparoscopic peritoneal dialysis (PD) catheter insertion at a tertiary care centre in India. CASE SERIES: 48 patients were referred from the department of nephrology at our centre for laparoscopic PD catheter insertion. A two port technique was used in 37 patients and three port technique was implemented in the rest for simultaneous adhesiolysis and/or omentectomy. A straight tip catheter was tunneled through the rectus muscle in all patients. Two patients had incisional hernia from a previous abdominal surgery which was repaired concomitantly with onlay meshplasty. RESULTS: The operative time ranged between 20 and 35 min under general anaesthesia. Three patients were subjected to urgent start dialysis of which one patient developed peridrain leak as an early complication which was managed conservatively. All other patients were commenced on peritoneal dialysis two weeks after surgery. There was no other surgical site occurrence or episodes of peritonitis reported in a 6 month follow up period with the department of nephrology. CONCLUSION: In the era of minimal access surgery, the laparoscopic approach is feasible for widespread and safe use for PD catheter insertion. The benefits of PD can thus be made available to patients at civil hospitals even with a basic laparoscopy setup.

Jejunal perforation secondary to blind insertion of peritoneal dialysis catheter: a case report and review of literature.

BACKGROUND: Peritoneal dialysis (PD) depends upon a functioning and durable access to the peritoneal cavity. Many techniques exist to insert a peritoneal catheter, showing similar outcomes and benefits. Blind percutaneous insertion represents a bedside intervention predominantly performed by nephrologists requiring only local anesthesia, sedation and minimal transcutaneous access. Although current guidelines recommend insertion techniques allowing visualization of the peritoneal cavity, the blind percutaneous approach is still widely used and has been proven safe and effective to bring durable peritoneal dialysis access. Herein, we described a rare case of jejunal perforation secondary to blind PD catheter placement, and conduct a review of the current medical literature describing early bowel perforations secondary to PD catheter placement, gathering descriptions of symptomatology and outcomes and their relations to the insertion technique. CLINICAL PRESENTATION: We herein describe the case of a 48 year-old patient with a history of appendectomy who suffered from triple jejunal perforation after blind percutaneous insertion and subsequent embedment of his peritoneal catheter. Accurate diagnosis was made 1 month after insertion due to atypical clinical presentation and because physicians had no access to the peritoneal cavity after catheter embedment. After surgical repair and broad-spectrum antibiotics, the patient was switched to HD. CONCLUSION: Early catheter-related visceral injury is a rare, yet threatening condition that is almost always causing a switch to hemodialysis or death. Our review highlights that laparoscopic catheter placement might bring better outcomes if perforation occurs, as it allows immediate diagnosis and treatment. On the contrary, catheter embedment may delay clinical diagnosis and therefore bring worse outcomes.