P1321PLASMATIC OSTEOPONTIN: A PREDICTOR OF VASCULAR ACCESS DYSFUNCTION IN HEMODIALYSIS PATIENTS

Abstract Background and Aims Despite recommendations for a close follow-up of arteriovenous fistulas (AVF), thombosis rate reaches 10% each year. Conventional follow-up modalities remain a burden for hemodialysis patients. We tested the hypothesis that osteopontin (OPN), a pro-inflammatory molecule related to intimal hyperplasia, could be a biological marker of stenosis, and could thereby allow a screening of patients at risk for AVF dysfunction. Method Our prospective study (NCT03270358) compared the rate of plasmatic OPN between patients with a good-functioning AVF (control group, N= 39) and patients who required surgical or endovascular revision of their AVF because of a stenosis (stenosis group, N= 37). Blood samples were taken in the AVF, at the time of AVF cannulation in control patients, and at the time of AVF revision in stenosis patients. For each patient, blood from the contralateral arm was also analyzed as a between-subject control (paired t test). Cardiovascular risk factors, ongoing medications, and OPN rates (ELISA technique) were compared among the groups (uni- and multivariate analysis). The ROC curve determined sensitivity and specificity of the marker for the detection of stenosis. Results Patients' characteristics were similar between the 2 groups (mean age, 70 years; men, 63%; AVF duration; 39 months), apart from diabetes (control group, 33%; stenosis group, 57%; p=0.04). The rate of OPN was similar between the AVF arm and the contralateral arm (p=0.11), but significantly increased in the stenosis group compared to the control group (655 vs. 452 ng/mL, respectively, p=0.02). There was no statistically significant difference in OPN rate for diabetics and non diabetics (two-way ANOVA, p= 0.50). Sensitivity was 89% for a threshold >293ng/mL and specificity was 80% for a threshold >567ng/mL (AUC: 0.70; 95%CI: 0.57-0.81; p=0.004). Patients with an OPN rate ≥293ng/mL and those with an OPN rate ≥567ng/mL had respectively 8.87 and 15.62 higher odds to have a stenosis than patients with an OPN rate <293ng/mL (binomial regression, p<0.01). Conclusion Plasmatic OPN rate in hemodialysis patients can be measured simply, in a blood sample taken at the time of AVF cannulation, and is strongly correlated to the presence of a symptomatic AVF stenosis. This biomarker could help the physician choose which patient need a comprehensive examination of his/her AVF with duplex ultrasound or fistulogram.

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Abstract 1685: Clinical and Angiographic Outcomes following Percutaneous Coronary Intervention with Sirolimus-Eluting Stents vs. Bare Metal Stents in Hemodialysis Patients

Circulation ◽

10.1161/circ.116.suppl_16.ii_354-a ◽

2007 ◽

Vol 116 (suppl_16) ◽

Author(s):

Sen Yachi ◽

Kengo Tanabe ◽

Hirosada Yamamoto ◽

Shuji Otsuki ◽

Atsuhiko Yagishita ◽

...

Keyword(s):

Percutaneous Coronary Intervention ◽

Bare Metal Stents ◽

Coronary Intervention ◽

Hemodialysis Patients ◽

Metal Stents ◽

Control Group ◽

Bare Metal ◽

Percutaneous Coronary ◽

Significant Difference

Background Percutaneous coronary intervention in hemodialysis patients has been hampered by high rate of major adverse cardiac events (MACE). It remains uncertain whether sirolimus-eluting stent (SES) improves clinical outcomes in hemodialysis patients compared to bare metal stent (BMS). Methods The present study consisted of consecutive 46 hemodialysis patients with 57 lesions treated with SES from August 2004 to April 2006. For comparison, the control group was composed of 67 hemodialysis patients with 70 lesions who were treated with BMS in three years before the introduction of SES. Clinical and angiographic follow-up were performed after 8 months. MACE included all-cause death, myocardial infarction and repeat target vessel revascularization. Results Baseline characteristics were comparable between the 2 groups except for lesion length. Clinical follow-up was available in all patients. Angiographic follow-up was obtained in 39 patients (84.8%) in the SES group and 49 patients (73.1%) in the BMS group. There was no difference in MACE between the 2 groups (SES;28.3%, BMS;40.3%, p=0.19). As shown in the table , quantitative angiographic analysis revealed a significant difference in late lumen loss (SES;0.66±0.80mm, BMS;1.07±0.75mm, p=0.01), however, the rate of binary restenosis was identical (SES;31.9%, BMS;40.4%, p=0.38). Of the angiographic restenosis lesions analyzed, focal restenosis pattern was frequently observed in the SES group than the BMS group(SES;93.3%, BMS;23.8%, p<0.0001), whereas diffuse restenosis pattern was dominant in the BMS group. Conclusion Angiographic parameters favored inhibition of neointimal hyperplasia by SES. However, the inhibitory effect of sirolimus was not translated into clinical superiority over BMS in hemodialysis patients. Table. Serial QCA data

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Effectiveness of Text Messaging as an Incentive to Maintain Physical Activity after Cardiac Rehabilitation: A Randomized Controlled Pilot Study

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18126645 ◽

2021 ◽

Vol 18 (12) ◽

pp. 6645

Author(s):

Giulia Foccardi ◽

Marco Vecchiato ◽

Daniel Neunhaeuserer ◽

Michele Mezzaro ◽

Giulia Quinto ◽

...

Keyword(s):

Physical Activity ◽

Cardiac Rehabilitation ◽

Exercise Testing ◽

Text Messages ◽

Control Group ◽

Stand Test ◽

Randomized Controlled ◽

Sit To Stand ◽

Significant Difference

Although the efficacy of cardiac rehabilitation (CR) is proven, the need to improve patients’ adherence has emerged. There are only a few studies that have investigated the effect of sending text messages after a CR period to stimulate subjects’ ongoing engagement in regular physical activity (PA). A randomized controlled pilot trial was conducted after CR, sending a daily PA text message reminder to an intervention group (IG), which was compared with a usual care control group (CG) during three months of follow-up. Thirty-two subjects were assessed pre- and post-study intervention with GPAQ, submaximal iso-watt exercise testing, a 30 s sit-to-stand test, a bilateral arm curl test, and a final survey on a seven-point Likert scale. A statistically significant difference in the increase of moderate PA time (Δ 244.7 (95% CI 189.1, 300.4) minutes, p < 0.001) and in the reduction of sedentary behavior time (Δ −77.5 (95% CI 104.9, −50.1) minutes, p = 0.004) was shown when the IG was compared with the CG. This was associated with an improvement in heart rate, blood pressure, and patients’ Borg rating on the category ratio scale 10 (CR10) in iso-watt exercise testing (all p < 0.05). Furthermore, only the IG did not show a worsening of the strength parameters in the follow-up leading to a change of the 30 s sit-to-stand test with a difference of +2.2 (95% CI 1.23, 3.17) repetitions compared to CG (p = 0.03). The telemedical intervention has been appreciated by the IG, whose willingness to continue with regular PA emerged to be superior compared to the CG. Text messages are an effective and inexpensive adjuvant after phase 2 CR that improves adherence to regular PA. Further studies are needed to confirm these results in a larger patient population and in the long term.

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The Relationship between Serum Ferritin Levels and 5-Year All-Cause Mortality in Hemodialysis Patients

Blood Purification ◽

10.1159/000515639 ◽

2021 ◽

pp. 1-7

Author(s):

Emre Erdem ◽

Ahmet Karatas ◽

Tevfik Ecder

Keyword(s):

Serum Ferritin ◽

Hemodialysis Patients ◽

Rank Test ◽

Significant Difference ◽

All Cause Mortality ◽

Group 3 ◽

Group 2 ◽

The Relationship ◽

Group 1

Introduction: The effect of high serum ferritin levels on long-term mortality in hemodialysis patients is unknown. The relationship between serum ferritin levels and 5-year all-cause mortality in hemodialysis patients was investigated in this study. Methods: A total of 173 prevalent hemodialysis patients were included in this study. The patients were followed for up to 5 years and divided into 3 groups according to time-averaged serum ferritin levels (group 1: serum ferritin <800 ng/mL, group 2: serum ferritin 800–1,500 ng/mL, and group 3: serum ferritin >1,500 ng/mL). Along with the serum ferritin levels, other clinical and laboratory variables that may affect mortality were also included in the Cox proportional-hazards regression analysis. Results: Eighty-one (47%) patients died during the 5-year follow-up period. The median follow-up time was 38 (17.5–60) months. The 5-year survival rates of groups 1, 2, and 3 were 44, 64, and 27%, respectively. In group 3, the survival was lower than in groups 1 and 2 (log-rank test, p = 0.002). In group 1, the mortality was significantly lower than in group 3 (HR [95% CI]: 0.16 [0.05–0.49]; p = 0.001). In group 2, the mortality was also lower than in group 3 (HR [95% CI]: 0.32 [0.12–0.88]; p = 0.026). No significant difference in mortality between groups 1 and 2 was found (HR [95% CI]: 0.49 [0.23–1.04]; p = 0.063). Conclusion: Time-averaged serum ferritin levels >1,500 ng/mL in hemodialysis patients are associated with an increased 5-year all-cause mortality risk.

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Impact of failed ab-interno trabeculectomy (trabectome) on subsequent XEN45 gel stent implantation in pseudophakic eyes

International Ophthalmology ◽

10.1007/s10792-021-01977-w ◽

2021 ◽

Author(s):

D. Kiessling ◽

C. Rennings ◽

M. Hild ◽

A. Lappas ◽

T. S. Dietlein ◽

...

Keyword(s):

Stent Implantation ◽

Open Angle Glaucoma ◽

Control Group ◽

Repeat Surgery ◽

Medication Score ◽

Significant Difference ◽

Ab Interno Trabeculectomy ◽

The Impact ◽

Ab Interno

Abstract Purpose To determine the impact of failed ab-interno trabeculectomy on the postoperative outcome of subsequent XEN45 gel stent (Allergan, CA, USA) implantation in pseudophakic eyes. Methods In this retrospective single-center study, we included 60 pseudophakic eyes from 60 participants who underwent XEN45 gel stent implantation. Thirty eyes each underwent primary stent implantation (control group) or had previously undergone a failed ab-interno trabeculectomy (trabectome group). The groups were matched at a 1:1 ratio based on the following criteria: preoperative and maximum Intraocular pressure (IOP), preoperative medication score, cup/disk-ratio, follow-up time, best-corrected visual acuity at baseline, age, and the proportion of patients classified as primary open angle glaucoma or exfoliation glaucoma. We defined a successful surgery by the following three scores: an IOP reduction > 20% and IOP at the longest follow-up < 21 mmHg (Score A) or < 18 mmHg (Score B) or IOP ≤ 15 mmHg and an IOP reduction ≥ 40% (Score C). One open conjunctival revision was allowed in all scores, and a repeat surgery was considered a failure. Results Following an average follow-up period of 22 ± 12 months, we observed a mean IOP reduction of 38%, from 23.5 ± 5.2–14.5 ± 5.0 mmHg. Comparative analyses between the groups did not reveal a significant difference in the postoperative IOP, postoperative medication score, side effects, revision rate, repeat surgery rate, or success rate. Conclusions Trabectome is a viable first-line procedure for medically uncontrolled glaucoma before filtering ab-interno microstent surgery is considered.

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Capsular closure versus unrepaired interportal capsulotomy after hip arthroscopy in patients with femoroacetabular impingement, results of a patient-blinded randomised controlled trial

Hip International ◽

10.1177/11207000211005762 ◽

2021 ◽

pp. 112070002110057

Author(s):

Niels H Bech ◽

Inger N Sierevelt ◽

Sheryl de Waard ◽

Boudijn S H Joling ◽

Gino M M J Kerkhoffs ◽

...

Keyword(s):

Randomised Controlled Trial ◽

Femoroacetabular Impingement ◽

Hip Arthroscopy ◽

Controlled Trial ◽

Poor Quality ◽

Control Group ◽

Treatment Groups ◽

Significant Difference ◽

Randomised Controlled

Background: Hip capsular management after hip arthroscopy remains a topic of debate. Most available current literature is of poor quality and are retrospective or cohort studies. As of today, no clear consensus exists on capsular management after hip arthroscopy. Purpose: To evaluate the effect of routine capsular closure versus unrepaired capsulotomy after interportal capsulotomy measured with NRS pain and the Copenhagen Hip and Groin Outcome Score (HAGOS). Materials and methods: All eligible patients with femoroacetabular impingement who opt for hip arthroscopy ( n = 116) were randomly assigned to one of both treatment groups and were operated by a single surgeon. Postoperative pain was measured with the NRS score weekly the first 12 weeks after surgery. The HAGOS questionnaire was measured at 12 and 52 weeks postoperatively. Results: Baseline characteristics and operation details were comparable between treatment groups. Regarding the NRS pain no significant difference was found between groups at any point the first 12 weeks after surgery ( p = 0.67). Both groups significantly improved after surgery ( p < 0.001). After 3 months follow-up there were no differences between groups for the HAGOS questionnaire except for the domain sport ( p = 0.02) in favour of the control group. After 12 months follow-up there were no differences between both treatment groups on all HAGOS domains ( p > 0.05). Conclusions: The results of this randomised controlled trial show highest possible evidence that there is no reason for routinely capsular closure after interportal capsulotomy at the end of hip arthroscopy. Trial Registration: This trial was registered at the CCMO Dutch Trial Register: NL55669.048.15.

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Treatment of thoracolumbar trauma by short-segment percutaneous transpedicular screw instrumentation: prospective comparative study with a minimum 2-year follow-up

Journal of Neurosurgery Spine ◽

10.3171/2013.11.spine13479 ◽

2014 ◽

Vol 20 (2) ◽

pp. 150-156 ◽

Cited By ~ 52

Author(s):

Petr Vanek ◽

Ondrej Bradac ◽

Renata Konopkova ◽

Patricia de Lacy ◽

Jiri Lacman ◽

...

Keyword(s):

Blood Loss ◽

Minimally Invasive ◽

Cobb Angle ◽

Control Group ◽

Working Ability ◽

Short Segment ◽

Transpedicular Screw ◽

Significant Difference ◽

Screw Group

Object The main aim of this study was to compare clinical and radiological outcomes after stabilization by a percutaneous transpedicular system and stabilization from the standard open approach for thoracolumbar spine injury. Methods Thirty-seven consecutive patients were enrolled in the study over a period of 16 months. Patients were included in the study if they experienced 1 thoracolumbar fracture (A3.1–A3.3, according to the AO/Magerl classification), had an absence of neurological deficits, had no other significant injuries, and were willing to participate. Eighteen patients were treated by short-segment, minimally invasive, percutaneous pedicle screw instrumentation. The control group was composed of 19 patients who were stabilized using a short-segment transpedicular construct, which was performed through a standard midline incision. The pain profile was assessed by a visual analog scale (VAS), and overall satisfaction by a simple 4-stage scale relating to performance of daily activities. Working ability and return to original occupation were also monitored. Radiographic follow-up was defined by the vertebral body index (VBI), vertebral body angle (VBA), and bisegmental Cobb angle. The accuracy of screw placement was examined using CT. Results The mean surgical duration in the percutaneous screw group was 53 ± 10 minutes, compared with 60 ± 9 minutes in the control group (p = 0.032). The percutaneous screw group had a significantly lower perioperative blood loss of 56 ± 17 ml, compared with 331 ± 149 ml in the control group (p < 0.001). Scores on the VAS in patients in the percutaneous screw group during the first 7 postoperative days were significantly lower than those in the control group (p < 0.001). There was no significant difference between groups in VBI, VBA, and Cobb angle values during follow-up. There was no significant difference in screw placement accuracy between the groups and no patients required surgical revision. There was no significant difference between groups in overall satisfaction at the 2-year follow-up (p = 0.402). Working ability was insignificantly better in the percutaneous screw group; previous working position was achieved in 17 patients in this group and in 12 cases in the control group (p = 0.088). Conclusions This study confirms that the percutaneous transpedicular screw technique represents a viable option in the treatment of preselected thoracolumbar fractures. A significant reduction in blood loss, postoperative pain, and surgical time were the main advantages associated with this minimally invasive technique. Clinical, functional, and radiological results were at least the same as those achieved using the open technique after a 2-year follow-up. The short-term benefits of the percutaneous transpedicular screw technique are apparent, and long-term results have to be studied in other well-designed studies evaluating the theoretical benefit of the percutaneous technique and assessing whether the results of the latter are as durable as the ones achieved by open surgery.

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Outcomes of Inside-out Meniscal Repair in the Setting of Multiligament Reconstruction in the Knee

The American Journal of Sports Medicine ◽

10.1177/0363546517698944 ◽

2017 ◽

Vol 45 (9) ◽

pp. 2098-2104 ◽

Cited By ~ 5

Author(s):

Jorge Chahla ◽

Chase S. Dean ◽

Lauren M. Matheny ◽

Justin J. Mitchell ◽

Mark E. Cinque ◽

...

Keyword(s):

Failure Rate ◽

Meniscal Repair ◽

Postoperative Outcome ◽

Control Group ◽

Failure Rates ◽

Significant Difference ◽

Outcome Scores ◽

Inside Out ◽

Repair Group

Background: Limited evidence exists for meniscal repair outcomes in a multiligament reconstruction setting. Purpose/Hypothesis: The purpose of this study was to assess outcomes and failure rates of meniscal repair in patients who underwent multiligament reconstruction compared with patients who underwent multiligament reconstruction but lacked meniscal tears. The authors hypothesized that the outcomes of meniscal repair associated with concomitant multiligament reconstruction would significantly improve from preoperatively to postoperatively at a minimum of 2 years after the index surgery. Secondarily, they hypothesized that this cohort would demonstrate similar outcomes and failure rates compared with the cohort that did not have meniscal lesions at the time of multiligament reconstruction. Study Design: Cohort study; Level of evidence, 3. Methods: Inclusion criteria for the study included radiographically confirmed skeletally mature patients of at least 16 years of age who underwent multiligamentous reconstruction of the knee without previous ipsilateral osteotomy, intra-articular infections, or intra-articular fractures. Patients were included in the experimental group if they underwent inside-out meniscal suture repair with concurrent multiligament reconstruction. Those included in the control group (multiligament reconstruction without a meniscal tear) underwent multiligament reconstruction but did not undergo any type of meniscal surgery. Lysholm, Western Ontario and McMaster Universities Osteoarthritis Index, Short Form–12 physical component summary and mental component summary, Tegner activity scale, and patient satisfaction scores were recorded preoperatively and postoperatively. The failure of meniscal repair was defined as a retear of the meniscus that was confirmed arthroscopically. Results: There were 43 patients (16 female, 27 male) in the meniscal repair group and 62 patients (25 female, 37 male) in the control group. Follow-up was obtained in 93% of patients with a mean of 3.0 years (range, 2.0-4.7 years). There was a significant improvement between all preoperative and postoperative outcome scores ( P < .05) for both groups. The meniscal repair group had significantly lower preoperative Lysholm and Tegner scores ( P = .009 and P = .02, respectively). There were no significant differences between any other outcome scores preoperatively. The failure rate of the meniscal repair group was 2.7%, consisting of 1 symptomatic meniscal retear. There was no significant difference in any postoperative outcome score at a minimum 2-year follow-up between the 2 groups. Conclusion: Good to excellent patient-reported outcomes were reported for both groups with no significant differences in outcomes between the cohorts. Additionally, the failure rate for inside-out meniscal repair with concomitant multiligament reconstruction was low, regardless of meniscus laterality and tear characteristics. The use of multiple vertical mattress sutures and the biological augmentation resulting from intra-articular cruciate ligament reconstruction tunnel reaming may be partially responsible for the stability of the meniscal repair construct and thereby contribute to the overall improved outcomes and the low failure rate of meniscal repair, despite lower preoperative Lysholm and Tegner scores in the meniscal repair group.

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Effect of implementation intention on walking in people with diabetes

Revista de Saúde Pública ◽

10.11606/s1518-8787.2020054002024 ◽

2020 ◽

Vol 54 ◽

pp. 103

Author(s):

Marco Antonio Vieira da Silva ◽

Thaís Moreira São-João ◽

Marilia Estevam Cornelio ◽

Fábio Luiz Mialhe

Keyword(s):

Health Care ◽

Primary Health Care ◽

Leisure Time Physical Activity ◽

Intervention Strategy ◽

Intervention Group ◽

Implementation Intention ◽

Control Group ◽

Primary Health ◽

Significant Difference

OBJECTIVE: To evaluate the effect of implementation intentions as an intervention strategy to promote walking in adults with type 2 diabetes mellitus (T2DM). METHODS: We conducted a controlled and randomized trial, with 12 months of follow-up, involving 65 people with T2DM recruited from primary health care units and allocated them in the control group (CG, n = 32) and intervention group (IG, n = 33). The IG received the implementation intention strategy to promote walking and the CG remained in follow-up for conventional treatment in primary health care. The researchers were blinded by anthropometric measurements and the filling of the instruments. RESULTS: After twelve months of follow up, the IG presented a statistically significant increase in the leisure time physical activity when compared with the CG (p = 0.0413) and showed a significant decrease in waist circumference (p = 0.0061). No significant difference was observed regarding body mass index and glycated hemoglobin among groups. CONCLUSIONS: Implementation intention was effective in promoting walking and improving clinical indicators in adults with T2DM.

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Effect of platelet rich-fibrin on alveolar osteitis incidence following surgical removal of impacted mandibular third molars: A comparative study

Journal of Baghdad College of Dentistry ◽

10.26477/jbcd.v31i4.2723 ◽

2019 ◽

Vol 31 (4) ◽

Author(s):

Ali S. Abdul Kareem ◽

Ali H. Al Hussaini

Keyword(s):

Postoperative Pain ◽

Control Group ◽

P Value ◽

Surgical Removal ◽

Similar Distribution ◽

Extraction Socket ◽

Platelet Rich Fibrin ◽

Significant Difference ◽

Alveolar Osteitis

Background: Postoperative morbidity after extraction of the impacted mandibular third molar (IMTM) is inevitable. One of the most common postoperative complication is alveolar osteitis (AO) which is a painful non healed socket. Many researches were attempted to prevent the occurrence of AO by introducing and applying a new materials inside the extraction socket. Platelet rich fibrin (PRF) is a biological complex fibrin matrix where autologous platelets and leucocytes are present, used to enhance tissue healing process and reduce the early adverse effects of the inflammation. Aims: To evaluate the effect of PRF on the incidence of AO. Also to assess PRF effect on pain, swelling, and trismus following the surgical removal of IMTM and compare it with the control group. Materials and methods: This clinical prospective study was conducted from October 2016 to October 2017 at the Department of Oral & Maxillofacial Surgery, College of dentistry/University of Baghdad; and Al-Sadr Specialized Health Center. A total number of 50 IMTMs were surgically removed from 45 patients who met the inclusion criteria (21 males and 24 females) with age ranged from 16-41 years. The cases were divided into two groups: a study group (25 cases) where PRF were placed inside the extraction socket and control group (25 cases) where traditional surgery were performed. AO, trismus and swelling were assessed at the 2nd and 7th postoperative day. Pain scored by numeric rating scale daily by the patients. Results: The study showed that age, gender, side of impaction, oral hygiene condition, impacted tooth classification, surgical difficulty, and the time of procedure in both control and study groups had nearly similar distribution with non- significant difference. At the 1st follow up period: Trismus (P-value = 0.834) and Swelling (P-value = 0.592) were non- significant between the two groups. AO had overall incidence of 4% occurred only in the control group, while the PRF group had no occurrence (0%), but the difference was statistically non significant. Postoperative pain had no significance difference in both groups. At the 2nd follow up period there was no significant difference regarding trismus, swelling, and incidence of AO between both groups. Conclusion: Local application of PRF can reduce the incidence of AO but not to a significant level. PRF had no effect concerning postoperative pain, swelling, and trismus.

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The Effects of Mycophenolate on the Formation of Granulation Tissue Post-operatively in Canine Tracheal Stent Patients (2014–2020)

Frontiers in Veterinary Science ◽

10.3389/fvets.2021.697513 ◽

2021 ◽

Vol 8 ◽

Author(s):

Kevin F. Barber ◽

Catherine A. Loughin ◽

Dominic J. Marino ◽

Martin Lesser

Keyword(s):

Mycophenolate Mofetil ◽

Granulation Tissue ◽

Control Group ◽

Tracheal Lumen ◽

Loss To Follow Up ◽

Treatment Groups ◽

Tracheal Stent ◽

Significant Difference ◽

Tracheal Collapse

Objectives: To determine if mycophenolate mofetil reduces the incidence and severity of granulation tissue in-growth in canine tracheal stent patients.Study design: Randomized clinical trial.Animals: 111 dogs from the hospital population.Methods: Client-owned dogs that received an endoluminal self-expanding tracheal stent for canine tracheal collapse between 2014 and 2020 were randomly assigned into one of two treatment groups. Control group medication protocol consisted of prednisone 0.5 mg/kg PO BID/SID/EOD × 30 days, hydrocodone 0.25 mg/kg PO TID × 30 days, and cefovecin 8 mg/kg SQ post-placement. Mycophenolate group medication protocol was identical to the control group medication protocol with the addition of mycophenolate mofetil 10 mg/kg PO BID × 30 days, SID for life. Recheck tracheoscopy was performed at 1, 3, and 6 months post-stent placement. Presence and severity of granulation tissue were determined by tracheoscopy and were recorded as a percentage of tracheal lumen obstruction by blinded evaluators (none present, <25%, >25–50%, and >50%).Results: At none of the three time points was there a statistically significant difference in grade between controls and those receiving mycophenolate (p = 0.467, p = 0.330, and p = 0.410).Conclusions and Clinical Significance: Our results suggest that mycophenolate can be safely given to these patients but do not support that its administration will reduce the incidence and severity of granulation tissue. Although a difference was observed in the severity of granulation tissue between the two groups, loss to follow-up may have influenced conclusions. A larger study would be warranted to further evaluate the effect of mycophenolate on the development of granulation tissue.

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