Incidence and characteristics of vascular trauma at a level 2 trauma center.

OBJECTIVE: Despite the significant number of trauma patients treated at level 2 trauma centers (L2TCs) in the United States, most of the literature describing vascular trauma is from level 1 trauma centers (L1TCs). Currently, trauma center designation criteria do not require vascular surgery as a necessary component service. METHODS: A retrospective chart review was performed for all trauma patients with a vascular surgery consultation seen at our L2TC between 2013 and 2018. Patient demographics, injury characteristics, and outcomes were collected and analyzed with descriptive statistics. RESULTS: Of the 3062 trauma patients evaluated at our L2TC, 110 (3.6%) had a vascular surgery consultation. Operative intervention was performed in 35.2% of consults, and 1.0% of all trauma patients had a vascular intervention. Average age was 57 years, and the majority were male (n = 75; 68.2%). Mean Injury Severity Score was 12.0 ± 9.6, and blunt injury (n = 77; 87.5%) was more common than penetrating (n = 11; 12.5%). The most common location of injury was the lower extremity (n = 23; 74.2%), followed by upper extremity (n = 3; 9.7%), chest (n = 2; 6.5%), neck (n = 2; 6.5%), and pelvis (n = 1; 3.2%). Endovascular interventions were performed by the vascular surgery service in 67.7% (n = 21) of all injuries. There was one amputation (3.2%) and one postoperative mortality (3.2%). CONCLUSIONS: At our L2TC, postoperative morbidity and mortality rates at 30 days were substantially lower compared with previously reported data. However, mean injury severity score and the incidence of penetrating and polytrauma were also lower at our institution. Most patients were managed nonoperatively, but when they did require an operation, endovascular therapies were more commonly implemented. Vascular surgery should be considered an integral service in trauma level designation, and there is a need for further investigation of these outcomes in L2TCs.

Transcarotid Artery Revascularization Learning Curves Differ between Surgeon Experience Level.

BACKGROUND: There has been ensuing interest in adopting transcarotid artery revascularization (TCAR), because of its low perioperative stroke and complication rates. In our study, we aimed to identify the case number at which there is improvement in TCAR technical proficiency. We also assessed how surgeon experience influenced outcomes. METHODS: The primary outcome was technical proficiency, measured by skin-to-skin, fluoroscopy, and flow reversal times. Secondary outcomes included hospital length of stay and perioperative complication rate. Data was collected from a deidentified database, which included all patients that had a TCAR between 2017 and 2023 at one of four hospitals. Cases were grouped by the experience of the surgeon who performed the case (<10 and >10 years). Linear mixed models were used to analyze primary outcomes after being log-transformed, due to their skewed distributions. The estimated level of the outcome was compared at the 1st, 5th, 10th and 15th surgery between surgeon groups, and the significance level was adjusted using the Bonferroni correction. RESULTS: There were 160 cases performed by 13 surgeons included in the study. Patients with hostile necks (23.9% vs. 9.7%, P=0.015) and contralateral occlusions (7.5% vs. 0%, P=0.007) were operated on more frequently by surgeons with <10 years of experience. There was no difference in secondary outcomes between groups. While primary outcomes between groups were not significant when comparing median values, linear mixed models demonstrated a significant improvement among the group of surgeons with less experience after the 15th case relative to their senior partners. At this point, they were operating with 30% less skin-to-skin time (P=0.002, 95% CI 13% to 44%) and 51% less fluoroscopy time (P=0.005, 95% CI 20% to 70%) compared to surgeons with >10 years of experience. There was no significant difference between groups with respect to flow reversal times. CONCLUSIONS: There was significant improvement experienced by the junior attendings relative to their senior partners after the fifteenth case. This was not influenced by patient characteristics nor the type of anesthesia used.

A review of the current recommendations and practices for hemodialysis access monitoring and maintenance procedures.

The growing number of prevalent arteriovenous (AV) accesses has been associated with an increase in the incidence of procedures being performed to maintain patency. To reduce the rate of unnecessary procedures, the 2019 Kidney Disease Outcome Quality Initiative guidelines addended the AV access surveillance recommendations, which includes clinical monitoring and assessment of dialysis adequacy alone. Abnormal clinical findings would necessitate follow-up angiography with or without confirmatory duplex ultrasound. Due to poor patency, increased surveillance schedules have been proposed to identify stenosis early and potentially prevent acute thrombotic events and AV access failure. In this review, we outlined current AV access monitoring and maintenance procedure recommendations, as described by the Centers for Medicare and Medicaid Services and 2019 Kidney Disease Outcome Quality Initiative guidelines. In addition, we highlight the findings of recently published randomized controlled trials that have examined increased surveillance schedules.

Outcomes of balloon-assisted maturation with large-diameter balloons.

OBJECTIVES: Balloon-assisted maturation (BAM) is a well-established technique for maturation of inadequate arteriovenous fistulas (AVF). The objective of this study was to evaluate outcomes of initial BAM using large-diameter angioplasty balloons. METHODS: Charts of patients who underwent BAM between 2018 and 2021 at a single academic institution were reviewed. AVF maturation rate was the primary outcome. Secondary outcomes included procedural complications, re-intervention rates, post-procedure vein diameter, and time to catheter-free hemodialysis (HD). Outcomes of patients that underwent initial BAM with ⩾7 mm diameter balloons (Group I) were compared to those of patients that had initial BAM with <7 mm balloons (Group II). RESULTS: Group I (n = 149) was a significantly younger cohort and had more men compared to Group II (n = 90). There were no significant differences associated with procedural details and complication rates. Median vein diameter was larger (5.9 mm, IQR: 5-6.4) in Group I compared to Group II (5.1 mm, IQR: 4.2-5.9; p = 0.03) on post-procedure Duplex ultrasound. There was also a higher incidence of vein stenosis in Group II. The overall maturation rate was higher in Group I (97% vs 88%, p = 0.003), and a larger proportion of patients in Group II required more than one BAM to achieve maturation (33% vs 16%, p = 0.002). The median time to catheter-free HD after first BAM was 29 days (IQR: 19-47) in Group I and 42 days (IQR: 24-75) in Group II (p = 0.002). At 60 days after first BAM, the incidence of catheter-free HD was 83% in Group I versus 67% in Group II (p = 0.001). CONCLUSIONS: Our study demonstrates that the ability to utilize large angioplasty balloons during initial BAM is associated with higher rates of AVF maturation with fewer re-interventions and shorter time to catheter-free dialysis. AVFs that can tolerate this procedure often have more favorable baseline characteristics.

Outcomes After Laparoscopic Cholecystectomy in Hyperkinetic Biliary Dyskinesia.

BACKGROUND: Biliary dyskinesia (BD) is a poorly understood functional gallbladder disorder. Diagnosis is made with abdominal pain and an intact gallbladder without signs of anatomical obstruction on imaging or pathology. Our aim was to assess whether laparoscopic cholecystectomy (LC) resolves hyperkinetic BD symptoms. METHODS: Records of patients ≥18 years of age, who underwent LC by four surgeons at a tertiary care center between 2012 and 2020, were retrospectively reviewed. Patients were excluded if they had a documented gallbladder ejection fraction (GBEF) <80% or had biliary stones or sludge on pathology or imaging. Demographic information, HIDA results, preoperative testing, operative details, gallbladder pathology, and symptom status at follow-up were collected from electronic medical records. Improvement in BD symptoms was assessed using McNemar's test. Risk differences with standard errors were employed to estimate percent reduction in symptoms. RESULTS: Ninety-eight patients met inclusion criteria. Of those who presented for follow-up (n = 91), 92.3% (n = 84) reported partial or complete resolution of symptoms. Preoperative symptoms, including back pain (16.7%, 95% CI: [7.9%, 25.5%]; P < .0001), epigastric pain (31.1% [21.3%, 41.3%]; P < .0001), nausea (56.7% [45.0%, 65.8%]; P < .0001), RUQ pain (57.8% [46.1%, 66.9%]; P < .0001), and vomiting (27.8% [18.4%, 37.7%]; P < .0001) showed significant improvement after LC. Chronic cholecystitis and/or cholesterolosis were present on pathology in 79.8% of gallbladders. DISCUSSION: Our study currently represents the largest cohort of patients with hyperkinetic BD. Laparoscopic cholecystectomy appears to result in resolution of symptoms for this clinical entity.

Degloving Soft Tissue Injuries of the Extremity: Characterization, Categorization, Outcomes, and Management.

We aimed to identify degloving soft tissue injury (DSTI) patient characteristics, injury and reconstruction patterns, and factors affecting outcomes of DSTI injuries to propose a reconstructive protocol for these injuries. METHODS: A retrospective analysis of consecutive patients with DSTIs of an extremity over a 22-year period has been done. RESULTS: 188 patients with 201 extremity DSTIs were included. Mean patient age was 37 years, with follow-up of 19.6 months. In total, 96% of injuries were related to motor vehicles or machinery, and 74.6% of DSTIs had injuries to structures deep to skin/subcutis. The avulsed tissue was utilized in reconstruction in 71.6% of cases and 86.8% of these experienced some loss of the used avulsed tissues. Of the total cases, 82% employed skin grafting in reconstruction. Dermal regeneration templates were used in 32% of patients. An estimated 86.5% of patients had negative pressure wound therapy utilized. Of the injured patients, 21% required flap reconstruction and 22% required some form of amputation. Age, body mass index, and tobacco use did not increase perioperative complications or amputation. DSTIs with injury to structures deep to skin/subcutis were associated with negative pressure wound therapy use (P = 0.02). DSTIs with underlying fractures required more procedures to reach reconstruction completion (P = 0.008), had more minor (P = 0.49) and major perioperative complications (P = 0.001), longer time to heal (P = 0.002), and increased need for amputation (P = 0.02). CONCLUSIONS: Factors affecting the reconstructive management and outcome of DSTIs include injury to structures deep to the skin/subcutis. We categorized DSTIs based on the level of injury and proposed a systematic approach to extremity DSTIs which may be utilized by plastic surgeons and other surgical services to manage these complex injuries.