Kidney Diseases
Conditions
Keywords
graft, fistula, hemodialysis, Vascular access
Brief summary
Many older adults require hemodialysis for advanced chronic kidney disease, but it is not clear which permanent vascular access method (fistula or graft) is best with respect to access effectiveness and patient satisfaction. In this pilot study, the study team will test the hypothesis that older adults undergoing graft access placement will more effectively transition from catheter-based to arteriovenous access-based hemodialysis; have fewer following vascular access procedures; have better upper extremity function; have better self-sufficiency with daily activities; and better health-related quality of life compared to those who undergo arteriovenous fistula access placement. The study will establish feasibility of randomizing older adults to the two types of arteriovenous access surgeries; evaluate relationships between measurements of pre-operative physical function and vascular access development; compare vascular access outcomes between the two groups; and gather longitudinal assessments of upper extremity muscle strength, performance of activities of daily living, and patients' reports of satisfaction with their vascular access and quality of life.
Detailed description
Each year, more than 600,000 people in the United States receive life-saving hemodialysis (HD) treatments for end-stage kidney disease (ESKD), a third of whom are older adults.Timely placement of an arteriovenous (AV) vascular access (native AV fistula \[AVF\] or prosthetic AV graft \[AVG\]) is necessary to avoid (or limit) the use of tunneled central venous catheters (TCVC) for HD. 'Fistula First Catheter Last' national guidelines require placement of AVF as the AV access of first choice in all patients to achieve better patient survival. However, the benefits of AVF over AVG are least certain in older adults, as age-related biological changes independently modulate patient outcomes. Nationally representative cohort studies of older adults with incident ESKD have shown similar patient survival between those whose first AV access placed or used was a fistula or a graft.Compared with grafts, fistulas fail more often and necessitate longer times and more subsequent procedures to aid development, exposing older patients to time-consuming procedures that may negatively affect upper extremity strength and erode their quality of life. The contribution of pre-operative physical function to AV access outcomes and the impact of AV access placement on upper extremity strength and self-sufficiency have not been evaluated. This pilot trial will involve older adults with pre-dialysis advanced chronic kidney disease (CKD) or incident ESKD using a TCVC for HD who had no prior AV access surgery and have upper extremity vasculature suitable for either fistula or graft placement. Participants will be randomized to receive an upper extremity AVF-first or AVG-first access for HD. The primary objective of this pilot trial is to prospectively evaluate patient and vascular access outcomes in a randomized intervention and in a patient population in whom fistula-first guidelines have been applied despite the lack of proven benefit and at the detriment of more access failures and procedures.
Interventions
Creation of arteriovenous graft vascular access for hemodialysis
Creation of arteriovenous fistula vascular access for hemodialysis
Sponsors
Study design
Eligibility
Inclusion criteria
* Age ≥ 65 years * End-stage kidney disease (ESKD) on chronic hemodialysis (HD) * Tunneled central venous catheter (TCVC) is the sole vascular access used for HD * Advanced chronic kidney disease (CKD) expected to require HD initiation within 90 days of screening and deemed medically necessary by the treating nephrologist to proceed with arteriovenous (AV) access placement in preparation for HD initiation * Did not undergo AV access placement in the past * Medically eligible to receive AV fistula (AVF) or AV graft (AVG) placement as deemed by the treating nephrologist * Surgically eligible to receive either an AVF or an AVG as deemed by the vascular surgeon * HD is the intended long-term modality of treatment for ESKD * Planning to remain within Wake Forest provided health care for at least 12 months
Exclusion criteria
* Presence of an AVF or AVG * Previous attempt(s) for AV vascular access placement * Native vasculature not suitable for placement of AV access * Imminent transplant planned (within 6 months) * Anticipated life expectancy \<9 months
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Feasibility- Eligibility for Randomization | 12 months | Proportion of screened participants deemed eligible for randomization. |
| Feasibility- AV Graft or Fistula Placement | Day 90 | Proportion of participants who undergo AV graft or fistula placement within 90 days of randomization. |
| Feasibility- Consent to Randomization | 12 months | Proportion of eligible participants who consent to randomization. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Health-related Quality of Life (HRQoL) - Mental Health (MCS-12) Scores | Baseline, Month 3, and Month 6 | The impact of the two types of vascular access on HRQoL will be assessed using the Kidney Disease Quality of Life Short Form (KDQOL-SF) version 1.3. which consists of a generic core (Short Form-36 \[SF-36\]) and an 11-item kidney disease-specific scale. Score range 0 to 100, with higher scores reflecting better quality of life. |
| Physical Activity Level | 3 and 6 months | The Rapid Assessment of Physical Activity (RAPA) instrument will be used to assess habitual physical activity. RAPA test score ≤ 3 corresponded to a sedentary lifestyle or a very light activity level; values ≥4 indicated a moderate to vigorous active lifestyle. |
| Physical Activity Level 4-meter Gait | Baseline, month 3 and 6 | The 4MGS test is a simple screening test and a useful predictor of worsening daily activity in patients with chronic respiratory diseases. |
| Number of Subjects With No Pain at the AV Access Site | Baseline, 3 and 6 months | This will be determined by using the Verbal Descriptor Scale (VDS). The Verbal Descriptor Scale (VDS) is comprised of a series of descriptive phrases that refer to different levels of pain severity or intensity. Patients select the phrase that best describes their current pain - The verbal descriptor scale asks the patient to describe her or his pain using the following descriptors: no pain, mild pain, moderate pain, severe pain, or pain as bad as it could be. |
| Number of Subjects With Mild Pain at the AV Access Site | Baseline, Month 3 and Month 6 | This will be determined by using the Verbal Descriptor Scale (VDS). The Verbal Descriptor Scale (VDS) is comprised of a series of descriptive phrases that refer to different levels of pain severity or intensity. Patients select the phrase that best describes their current pain - The verbal descriptor scale asks the patient to describe her or his pain using the following descriptors: no pain, mild pain, moderate pain, severe pain, or pain as bad as it could be. |
| Number of Subject With Moderate Pain at the AV Access Site | Baseline, Month 3 and Month 6 | This will be determined by using the Verbal Descriptor Scale (VDS). The Verbal Descriptor Scale (VDS) is comprised of a series of descriptive phrases that refer to different levels of pain severity or intensity. Patients select the phrase that best describes their current pain - The verbal descriptor scale asks the patient to describe her or his pain using the following descriptors: no pain, mild pain, moderate pain, severe pain, or pain as bad as it could be. |
| Number of Subjects With Severe Pain at the AV Access Site | Baseline, Month 3 and Month 6 | This will be determined by using the Verbal Descriptor Scale (VDS). The Verbal Descriptor Scale (VDS) is comprised of a series of descriptive phrases that refer to different levels of pain severity or intensity. Patients select the phrase that best describes their current pain - The verbal descriptor scale asks the patient to describe her or his pain using the following descriptors: no pain, mild pain, moderate pain, severe pain, or pain as bad as it could be. |
| Upper Extremity Strength | 3 and 6 months | The grip-strength test will be performed twice on each hand for each assessment and the mean of the two results will be used for statistical analyses; a cut-off point \<16 kg in women and \<26 kg in men will define muscle weakness. Changes in grip strength will be compared between the two access interventions. Assessed with upper arm grip-strength test in each arm using a hand-held dynamometer. |
| Patient Satisfaction With Vascular Access | 3 and 6 months | Vascular access questionnaire will be used to assess differences in patient satisfaction with vascular access between the two access interventions using the short-form vascular access questionnaire (SF-VAQ). Mean scores obtained on SF-VAQ will be compared. SF-VAQ score range 4 -20 with higher scores indicating more satisfaction with the vascular access. |
| Performance on Activities of Daily Living (ADLs) | Baseline and 6 months | The level of independence will be evaluated using ADLs. ADL score range 0-30, with higher scores denoting more dependence on other people to perform the usual daily activities. |
| Performance on Activities of Instrumental Daily Living ADLs (IADLs) | Baseline, 3 and 6 months | The level of independence will be evaluated using IADLs instruments. ADL score range 0-31, with higher scores denoting more dependence on other people. |
| Depression | 3 and 6 months | Depression scores assessed with the patient health questionnaire (PHQ-9) will be compared between the two vascular access arms. PHQ-9 score range 0-27. Depression Severity: 0-4 none, 5-9 mild, 10-14 moderate, 15-19 moderately severe, 20-27 severe. |
| Health-related Quality of Life (HRQoL) - Physical Health (PCS-12) Scores | 3 and 6 months | The impact of the two types of vascular access on HRQoL will be assessed using the Kidney Disease Quality of Life Short Form (KDQOL-SF) version 1.3. which consists of a generic core (Short Form-36 \[SF-36\]) and an 11-item kidney disease-specific scale. Score range 0 to 100, with higher scores reflecting better quality of life. |
Other
| Measure | Time frame | Description |
|---|---|---|
| AV Access Procedures - Number of Surgical Re-intervention on Index AV Access Procedures | 12 months | Number of AV access procedures per 100 patient-days between the two AV access strategies. This will include angioplasty, thrombectomy, stent placement, repeat surgery, and/or surgical superficialization. |
| AV Access Procedures - Number of Endovascular Interventions on Index AV Procedures Access | 12 months | Number of AV access procedures per 100 patient-days between the two AV access strategies. This will include angioplasty, thrombectomy, stent placement, repeat surgery, and/or surgical superficialization. |
| AV Access Successful Cannulation | 6 months | Will compare the proportion of patients with successful AV access cannulation between the two AV access strategies. Successful cannulation is defined by the use of the AV access as the primary vascular access for hemodialysis (the fistula or graft access has been cannulated with two 16- or 15-gauge needles for ≥3 consecutive dialysis sessions and the dialysis central venous catheter was removed). |
| AV Access Primary Failure | 6 months | Rate of AV access primary failure between the two AV access strategies. Primary access failure is defined as permanent failure of the fistula or graft before hemodialysis suitability. This will include inadequate maturation, thrombosis, failure of first and subsequent cannulations, and/or other complications leading to nonfunctional fistula or graft. |
| AV Access Infection | 12 months | Incidence rate of AV access infection between the two AV access strategies. This will include fistula or graft cellulitis, abscess, and/or bacteremia due to AV access infection. |
| AV Access Secondary Failure | 12 months | Rate of AV access secondary failure between the two AV access strategies. Secondary access failure is defined by permanent AV access failure after the fistula or graft met dialysis suitability criteria with subsequent abandonment. |
Countries
United States
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| Upper Extremity Arteriovenous Graft (AVG) - First Participants randomized to receive an AVG will undergo surgery to have an AVG placed.
Upper arm arteriovenous graft surgery: Creation of arteriovenous graft vascular access for hemodialysis | 23 |
| Upper Extremity Arteriovenous Fistula (AVF) - First Participants randomized to receive an AVF will undergo surgery to have an AVF created.
Upper arm arteriovenous fistula surgery: Creation of arteriovenous fistula vascular access for hemodialysis | 21 |
| Total | 44 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 |
|---|---|---|---|
| Overall Study | Adverse Event | 2 | 0 |
| Overall Study | Death | 1 | 0 |
| Overall Study | Received different surgery | 1 | 0 |
| Overall Study | Surgery Cancelled | 1 | 0 |
Baseline characteristics
| Characteristic | Upper Extremity Arteriovenous Fistula (AVF) - First | Total | Upper Extremity Arteriovenous Graft (AVG) - First |
|---|---|---|---|
| Age, Continuous | 78.9 years | 76.3 years | 72.8 years |
| Race (NIH/OMB) American Indian or Alaska Native | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Asian | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Black or African American | 7 Participants | 14 Participants | 7 Participants |
| Race (NIH/OMB) More than one race | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Native Hawaiian or Other Pacific Islander | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Unknown or Not Reported | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) White | 14 Participants | 30 Participants | 16 Participants |
| Sex: Female, Male Female | 6 Participants | 17 Participants | 11 Participants |
| Sex: Female, Male Male | 15 Participants | 27 Participants | 12 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | 3 / 23 | 2 / 21 |
| other Total, other adverse events | 1 / 23 | 0 / 21 |
| serious Total, serious adverse events | 0 / 23 | 0 / 21 |
Outcome results
Feasibility- AV Graft or Fistula Placement
Proportion of participants who undergo AV graft or fistula placement within 90 days of randomization.
Time frame: Day 90
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Total Group | Feasibility- AV Graft or Fistula Placement | 18 Participants |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Feasibility- AV Graft or Fistula Placement | 21 Participants |
Feasibility- Consent to Randomization
Proportion of eligible participants who consent to randomization.
Time frame: 12 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Total Group | Feasibility- Consent to Randomization | 44 Participants |
Feasibility- Eligibility for Randomization
Proportion of screened participants deemed eligible for randomization.
Time frame: 12 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Total Group | Feasibility- Eligibility for Randomization | 54 Participants |
Depression
Depression scores assessed with the patient health questionnaire (PHQ-9) will be compared between the two vascular access arms. PHQ-9 score range 0-27. Depression Severity: 0-4 none, 5-9 mild, 10-14 moderate, 15-19 moderately severe, 20-27 severe.
Time frame: 3 and 6 months
Health-related Quality of Life (HRQoL) - Mental Health (MCS-12) Scores
The impact of the two types of vascular access on HRQoL will be assessed using the Kidney Disease Quality of Life Short Form (KDQOL-SF) version 1.3. which consists of a generic core (Short Form-36 \[SF-36\]) and an 11-item kidney disease-specific scale. Score range 0 to 100, with higher scores reflecting better quality of life.
Time frame: Baseline, Month 3, and Month 6
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Total Group | Health-related Quality of Life (HRQoL) - Mental Health (MCS-12) Scores | Month 3 | 54.38 score on a scale | Standard Deviation 13.26 |
| Total Group | Health-related Quality of Life (HRQoL) - Mental Health (MCS-12) Scores | Month 6 | 53.79 score on a scale | Standard Deviation 17.31 |
| Total Group | Health-related Quality of Life (HRQoL) - Mental Health (MCS-12) Scores | Baseline | 53.38 score on a scale | Standard Deviation 8.05 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Health-related Quality of Life (HRQoL) - Mental Health (MCS-12) Scores | Month 3 | 46.27 score on a scale | Standard Deviation 5.66 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Health-related Quality of Life (HRQoL) - Mental Health (MCS-12) Scores | Month 6 | 58.2 score on a scale | Standard Deviation 5.91 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Health-related Quality of Life (HRQoL) - Mental Health (MCS-12) Scores | Baseline | 51.46 score on a scale | Standard Deviation 11.37 |
Health-related Quality of Life (HRQoL) - Physical Health (PCS-12) Scores
The impact of the two types of vascular access on HRQoL will be assessed using the Kidney Disease Quality of Life Short Form (KDQOL-SF) version 1.3. which consists of a generic core (Short Form-36 \[SF-36\]) and an 11-item kidney disease-specific scale. Score range 0 to 100, with higher scores reflecting better quality of life.
Time frame: 3 and 6 months
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Total Group | Health-related Quality of Life (HRQoL) - Physical Health (PCS-12) Scores | Month 3 | 39.02 score on a scale | Standard Deviation 8.45 |
| Total Group | Health-related Quality of Life (HRQoL) - Physical Health (PCS-12) Scores | Month 6 | 40.77 score on a scale | Standard Deviation 7.73 |
| Total Group | Health-related Quality of Life (HRQoL) - Physical Health (PCS-12) Scores | Baseline | 29.89 score on a scale | Standard Deviation 12.09 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Health-related Quality of Life (HRQoL) - Physical Health (PCS-12) Scores | Month 3 | 39.44 score on a scale | Standard Deviation 5.23 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Health-related Quality of Life (HRQoL) - Physical Health (PCS-12) Scores | Month 6 | 36.12 score on a scale | Standard Deviation 5.55 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Health-related Quality of Life (HRQoL) - Physical Health (PCS-12) Scores | Baseline | 36.75 score on a scale | Standard Deviation 10.7 |
Number of Subjects With Mild Pain at the AV Access Site
This will be determined by using the Verbal Descriptor Scale (VDS). The Verbal Descriptor Scale (VDS) is comprised of a series of descriptive phrases that refer to different levels of pain severity or intensity. Patients select the phrase that best describes their current pain - The verbal descriptor scale asks the patient to describe her or his pain using the following descriptors: no pain, mild pain, moderate pain, severe pain, or pain as bad as it could be.
Time frame: Baseline, Month 3 and Month 6
Population: Patient expired, some participants also declined (at times) answering questions, and some visits were not performed due to travel distance
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Total Group | Number of Subjects With Mild Pain at the AV Access Site | Baseline | 6 Participants |
| Total Group | Number of Subjects With Mild Pain at the AV Access Site | Month 3 | 2 Participants |
| Total Group | Number of Subjects With Mild Pain at the AV Access Site | Month 6 | 0 Participants |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Number of Subjects With Mild Pain at the AV Access Site | Baseline | 1 Participants |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Number of Subjects With Mild Pain at the AV Access Site | Month 3 | 1 Participants |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Number of Subjects With Mild Pain at the AV Access Site | Month 6 | 0 Participants |
Number of Subjects With No Pain at the AV Access Site
This will be determined by using the Verbal Descriptor Scale (VDS). The Verbal Descriptor Scale (VDS) is comprised of a series of descriptive phrases that refer to different levels of pain severity or intensity. Patients select the phrase that best describes their current pain - The verbal descriptor scale asks the patient to describe her or his pain using the following descriptors: no pain, mild pain, moderate pain, severe pain, or pain as bad as it could be.
Time frame: Baseline, 3 and 6 months
Population: Patient expired, some participants also declined (at times) answering questions, and some visits were not performed due to travel distance
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Total Group | Number of Subjects With No Pain at the AV Access Site | Baseline | 6 Participants |
| Total Group | Number of Subjects With No Pain at the AV Access Site | Month 3 | 4 Participants |
| Total Group | Number of Subjects With No Pain at the AV Access Site | Month 6 | 7 Participants |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Number of Subjects With No Pain at the AV Access Site | Baseline | 13 Participants |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Number of Subjects With No Pain at the AV Access Site | Month 3 | 10 Participants |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Number of Subjects With No Pain at the AV Access Site | Month 6 | 7 Participants |
Number of Subjects With Severe Pain at the AV Access Site
This will be determined by using the Verbal Descriptor Scale (VDS). The Verbal Descriptor Scale (VDS) is comprised of a series of descriptive phrases that refer to different levels of pain severity or intensity. Patients select the phrase that best describes their current pain - The verbal descriptor scale asks the patient to describe her or his pain using the following descriptors: no pain, mild pain, moderate pain, severe pain, or pain as bad as it could be.
Time frame: Baseline, Month 3 and Month 6
Population: Patient expired, some participants also declined (at times) answering questions, and some visits were not performed due to travel distance
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Total Group | Number of Subjects With Severe Pain at the AV Access Site | Baseline | 2 Participants |
| Total Group | Number of Subjects With Severe Pain at the AV Access Site | Month 3 | 0 Participants |
| Total Group | Number of Subjects With Severe Pain at the AV Access Site | Month 6 | 0 Participants |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Number of Subjects With Severe Pain at the AV Access Site | Baseline | 0 Participants |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Number of Subjects With Severe Pain at the AV Access Site | Month 3 | 0 Participants |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Number of Subjects With Severe Pain at the AV Access Site | Month 6 | 1 Participants |
Number of Subject With Moderate Pain at the AV Access Site
This will be determined by using the Verbal Descriptor Scale (VDS). The Verbal Descriptor Scale (VDS) is comprised of a series of descriptive phrases that refer to different levels of pain severity or intensity. Patients select the phrase that best describes their current pain - The verbal descriptor scale asks the patient to describe her or his pain using the following descriptors: no pain, mild pain, moderate pain, severe pain, or pain as bad as it could be.
Time frame: Baseline, Month 3 and Month 6
Population: Patient expired, some participants also declined (at times) answering questions, and some visits were not performed due to travel distance
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Total Group | Number of Subject With Moderate Pain at the AV Access Site | Baseline | 3 Participants |
| Total Group | Number of Subject With Moderate Pain at the AV Access Site | Month 3 | 2 Participants |
| Total Group | Number of Subject With Moderate Pain at the AV Access Site | Month 6 | 2 Participants |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Number of Subject With Moderate Pain at the AV Access Site | Baseline | 5 Participants |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Number of Subject With Moderate Pain at the AV Access Site | Month 3 | 0 Participants |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Number of Subject With Moderate Pain at the AV Access Site | Month 6 | 1 Participants |
Patient Satisfaction With Vascular Access
Vascular access questionnaire will be used to assess differences in patient satisfaction with vascular access between the two access interventions using the short-form vascular access questionnaire (SF-VAQ). Mean scores obtained on SF-VAQ will be compared. SF-VAQ score range 4 -20 with higher scores indicating more satisfaction with the vascular access.
Time frame: 3 and 6 months
Population: Number differ form total number of randomized, 1 participant expired, not all questionnaires collected
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Total Group | Patient Satisfaction With Vascular Access | 3 months | 9.75 score on a scale | Standard Deviation 3.45 |
| Total Group | Patient Satisfaction With Vascular Access | 6 Months | 7.55 score on a scale | Standard Deviation 2.74 |
| Total Group | Patient Satisfaction With Vascular Access | week 2 | 10.1 score on a scale | Standard Deviation 3.18 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Patient Satisfaction With Vascular Access | 3 months | 8.82 score on a scale | Standard Deviation 1.53 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Patient Satisfaction With Vascular Access | 6 Months | 8.75 score on a scale | Standard Deviation 1.16 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Patient Satisfaction With Vascular Access | week 2 | 9.21 score on a scale | Standard Deviation 2.39 |
Performance on Activities of Daily Living (ADLs)
The level of independence will be evaluated using ADLs. ADL score range 0-30, with higher scores denoting more dependence on other people to perform the usual daily activities.
Time frame: Baseline and 6 months
Population: Patients declined survey
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Total Group | Performance on Activities of Daily Living (ADLs) | Baseline | 4.5 score on a scale | Standard Deviation 1.6 |
| Total Group | Performance on Activities of Daily Living (ADLs) | Month 6 | 4.2 score on a scale | Standard Deviation 1.82 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Performance on Activities of Daily Living (ADLs) | Baseline | 4.75 score on a scale | Standard Deviation 1.28 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Performance on Activities of Daily Living (ADLs) | Month 6 | 5.11 score on a scale | Standard Deviation 1.16 |
Performance on Activities of Instrumental Daily Living ADLs (IADLs)
The level of independence will be evaluated using IADLs instruments. ADL score range 0-31, with higher scores denoting more dependence on other people.
Time frame: Baseline, 3 and 6 months
Population: Patients declined survey
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Total Group | Performance on Activities of Instrumental Daily Living ADLs (IADLs) | Baseline | 5.28 score on a scale | Standard Deviation 2.49 |
| Total Group | Performance on Activities of Instrumental Daily Living ADLs (IADLs) | Month 6 | 4.4 score on a scale | Standard Deviation 2.65 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Performance on Activities of Instrumental Daily Living ADLs (IADLs) | Baseline | 4.5 score on a scale | Standard Deviation 1.45 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Performance on Activities of Instrumental Daily Living ADLs (IADLs) | Month 6 | 6.42 score on a scale | Standard Deviation 2.64 |
Physical Activity Level
The Rapid Assessment of Physical Activity (RAPA) instrument will be used to assess habitual physical activity. RAPA test score ≤ 3 corresponded to a sedentary lifestyle or a very light activity level; values ≥4 indicated a moderate to vigorous active lifestyle.
Time frame: 3 and 6 months
Physical Activity Level 4-meter Gait
The 4MGS test is a simple screening test and a useful predictor of worsening daily activity in patients with chronic respiratory diseases.
Time frame: Baseline, month 3 and 6
Population: Assessment was added on 2.4.2019 - Subjects could not walk un-assisted
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Total Group | Physical Activity Level 4-meter Gait | Month 6 | 5.74 meters per second | Standard Deviation 1.15 |
| Total Group | Physical Activity Level 4-meter Gait | Baseline | 7.5 meters per second | Standard Deviation 3.04 |
| Total Group | Physical Activity Level 4-meter Gait | Month 3 | 6.88 meters per second | Standard Deviation 2.23 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Physical Activity Level 4-meter Gait | Baseline | 5.1 meters per second | Standard Deviation 1.61 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Physical Activity Level 4-meter Gait | Month 3 | 6.04 meters per second | Standard Deviation 2.36 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Physical Activity Level 4-meter Gait | Month 6 | 6.34 meters per second | Standard Deviation 2.45 |
Upper Extremity Strength
The grip-strength test will be performed twice on each hand for each assessment and the mean of the two results will be used for statistical analyses; a cut-off point \<16 kg in women and \<26 kg in men will define muscle weakness. Changes in grip strength will be compared between the two access interventions. Assessed with upper arm grip-strength test in each arm using a hand-held dynamometer.
Time frame: 3 and 6 months
Population: Subject could not move hand from past stroke; Subject had joint pain; not completed due to distance
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Total Group | Upper Extremity Strength | 3 Months | 21.3 kilograms | Standard Deviation 5.6 |
| Total Group | Upper Extremity Strength | 6 Months | 19.1 kilograms | Standard Deviation 6.7 |
| Total Group | Upper Extremity Strength | Baseline | 19.6 kilograms | Standard Deviation 3.3 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Upper Extremity Strength | 3 Months | 22.6 kilograms | Standard Deviation 6.4 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Upper Extremity Strength | 6 Months | 20.4 kilograms | Standard Deviation 7.2 |
| Upper Extremity Arteriovenous Fistula (AVF) - First | Upper Extremity Strength | Baseline | 17.4 kilograms | Standard Deviation 3.5 |
AV Access Infection
Incidence rate of AV access infection between the two AV access strategies. This will include fistula or graft cellulitis, abscess, and/or bacteremia due to AV access infection.
Time frame: 12 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Total Group | AV Access Infection | 3 Participants |
| Upper Extremity Arteriovenous Fistula (AVF) - First | AV Access Infection | 2 Participants |
AV Access Primary Failure
Rate of AV access primary failure between the two AV access strategies. Primary access failure is defined as permanent failure of the fistula or graft before hemodialysis suitability. This will include inadequate maturation, thrombosis, failure of first and subsequent cannulations, and/or other complications leading to nonfunctional fistula or graft.
Time frame: 6 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Total Group | AV Access Primary Failure | 4 Participants |
| Upper Extremity Arteriovenous Fistula (AVF) - First | AV Access Primary Failure | 5 Participants |
AV Access Procedures - Number of Endovascular Interventions on Index AV Procedures Access
Number of AV access procedures per 100 patient-days between the two AV access strategies. This will include angioplasty, thrombectomy, stent placement, repeat surgery, and/or surgical superficialization.
Time frame: 12 months
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Total Group | AV Access Procedures - Number of Endovascular Interventions on Index AV Procedures Access | 5 procedures per 100 patient-days |
| Upper Extremity Arteriovenous Fistula (AVF) - First | AV Access Procedures - Number of Endovascular Interventions on Index AV Procedures Access | 7 procedures per 100 patient-days |
AV Access Procedures - Number of Surgical Re-intervention on Index AV Access Procedures
Number of AV access procedures per 100 patient-days between the two AV access strategies. This will include angioplasty, thrombectomy, stent placement, repeat surgery, and/or surgical superficialization.
Time frame: 12 months
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Total Group | AV Access Procedures - Number of Surgical Re-intervention on Index AV Access Procedures | 3 procedures per 100 patient-days |
| Upper Extremity Arteriovenous Fistula (AVF) - First | AV Access Procedures - Number of Surgical Re-intervention on Index AV Access Procedures | 4 procedures per 100 patient-days |
AV Access Secondary Failure
Rate of AV access secondary failure between the two AV access strategies. Secondary access failure is defined by permanent AV access failure after the fistula or graft met dialysis suitability criteria with subsequent abandonment.
Time frame: 12 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Total Group | AV Access Secondary Failure | 5 Participants |
| Upper Extremity Arteriovenous Fistula (AVF) - First | AV Access Secondary Failure | 8 Participants |
AV Access Successful Cannulation
Will compare the proportion of patients with successful AV access cannulation between the two AV access strategies. Successful cannulation is defined by the use of the AV access as the primary vascular access for hemodialysis (the fistula or graft access has been cannulated with two 16- or 15-gauge needles for ≥3 consecutive dialysis sessions and the dialysis central venous catheter was removed).
Time frame: 6 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Total Group | AV Access Successful Cannulation | 8 Participants |
| Upper Extremity Arteriovenous Fistula (AVF) - First | AV Access Successful Cannulation | 8 Participants |