Search Results (48)

Background and Clinical Significance: Superior mesenteric artery syndrome (SMAS) is a rare and often underdiagnosed cause of proximal intestinal obstruction, resulting from compression of the third portion of the duodenum between the SMA and the aorta. It typically occurs in individuals with significant weight loss due to mesenteric fat depletion. CasePresentation: We report the case of a 14.5-year-old female presented with a 6-day history of intractable vomiting and epigastric pain, on a background of intermittent vomiting over the preceding six months associated with a 7 kg unintentional weight loss, culminating in inability to tolerate oral intake. Her clinical course was complicated by a transient episode of blurred vision, numbness, and incoherent speech, initially suspected to be a neurological event. Extensive gastrointestinal and neurological investigations were inconclusive. Elevated fecal calprotectin levels raised suspicion for inflammatory bowel disease, given her family history, though endoscopy and histopathology were unremarkable. Advanced imaging ultimately demonstrated a markedly reduced aortomesenteric angle (6°) and distance (4 mm), confirming the diagnosis of SMAS. The patient was initially managed conservatively with total parenteral nutrition (TPN), achieving partial weight gain of 5 kg after 8 weeks of TPN. Due to persistent duodenal compression, surgical intervention was required. At 7-month follow-up, the patient remained symptom-free with restored nutritional status and a good weight gain. Conclusions: This case highlights the importance of considering SMAS in adolescents with chronic upper gastrointestinal symptoms and significant weight loss. Early recognition and appropriate imaging are essential to diagnosis, and timely surgical management can lead to excellent outcomes when conservative treatment is insufficient. Full article

Background and Objectives: In the current era of solid organ transplantation, the gap between available donors and patients on the waiting list is widening. Worldwide, surgeons are confronted with the challenge of optimizing the utilization of renal grafts, including the presence of multiple renal arteries (MRA), occurring in 20% to 30% of cases. The presence of a lower polar artery (LPA), which provides a significant vascular contribution to both the lower renal parenchyma and the upper urinary tract, constitutes an additional challenge, but its preservation is fundamental for the outcome of the kidney transplant (KT). The end-to-end (E/E) anastomosis with the recipient’s inferior epigastric artery (IEA) has been rarely reported in the literature, with variable results. The aim of this study is to report on technical aspects as well as on short- and long-term outcomes of this reconstruction in KT. Materials and Methods: A retrospective three-centre analysis was conducted on 13 KTs in which the graft’s LPA was anastomosed E/E with the recipient’s IEA. Results: Following an average follow-up period of 84 months, the patient and graft survival rate was 100%. Neither vascular nor urological complications were observed. Conclusions: In the event of KT with LPA, an E/E anastomosis with IEA performed with microsurgical technique is safe and provides excellent long-term results. Full article

Background: Robotic deep inferior epigastric artery perforator (DIEP) flap surgery is a technique used for autologous breast reconstruction to maintain the integrity of the rectus abdominis muscle while also utilizing robotic assistance for flap harvest. This study assesses postoperative outcomes of patients undergoing robotic DIEP flap reconstruction through the measurement of postoperative pain, narcotics use, and antiemetic usage. Methods: A retrospective analysis was performed for patients undergoing robotic DIEP flap breast reconstruction between March 2024 and March 2025. Postoperative pain scores (1–10 scale), narcotics usage (measured in oral morphine equivalents), antiemetic usage, and complications were recorded. Patient outcomes were compared to a control group of 40 patients who had undergone abdominal-based free flap breast reconstruction. Results: Overall, 14 patients underwent robotic DIEP flap breast reconstruction, representing 24 breasts. The average patient age was 56.5 (range: 30–73). Ten patients underwent bilateral breast reconstruction, and four underwent unilateral breast reconstruction. The average length of stay postoperatively was 4.86 days (±1.23 days), and the return of bowel function occurred in 1.29 days (±0.47 days). No patients experienced an unplanned return to the OR or flap failure. Average pain scores on postoperative day 1 (POD1), 2 (POD2), and 3 (POD3) were 4.0 (±0.6), 3.4 (±0.6), and 2.93 (±0.5), respectively. Average antiemetic usage totalled 1.25 doses (±0.25). Average daily OME use was 27.7 (±5.0) for POD1, 25.96 (±6.3) for POD2, and 21.23 (±7.11) for POD3. This averaged to a total hospital OME use of 74.9 (±15.7) per patient. Patients undergoing robotic DIEP flap reconstruction required a significantly lower narcotics dosage, as well as a lower antiemetic dosage, during the first three days postoperatively compared to the control abdominal free flap group. Average pain scores in the robotic DIEP flap reconstruction patient group were also significantly decreased, specifically in POD2 and POD3. Conclusions: The robotic DIEP flap offers advantages in autologous breast reconstruction compared to other abdominal free flap reconstructive methods. In this limited retrospective study, the use of the robotic DIEP flap lowers chances of flap failure and complications, while also improving narcotics use, antiemetic use, and postoperative pain. Full article

Background: Desmoid tumors (DTs) are rare, non-metastatic but locally aggressive connective tissue neoplasms. While standard treatments include surgery, radiation, and ablation, current guidelines advocate active surveillance unless tumors progress or symptoms worsen. Cryotherapy has shown promise in treating DTs; however, its application in rectus abdominis DTs has been limited due to proximity to critical intra-abdominal structures. Methods: This case series describes a novel approach involving laparoscopic-assisted cryoablation in three patients with rectus abdominis DTs. Laparoscopic visualization was employed to improve tumor localization and procedural safety during percutaneous cryoablation. Results: The average tumor size was 7.4 cm, and a mean of 14 cryoprobes were used per case. All patients experienced complete symptom resolution. One patient developed a complication—injury to the inferior epigastric artery—requiring embolization. Follow-up imaging at three months showed significant tumor shrinkage and necrosis in two patients. The third patient had increased lesion volume due to post-procedural hematoma, although radiological markers of cryoablation efficacy were present. Conclusions: Laparoscopic-assisted cryoablation appears to be a feasible and effective technique for treating rectus abdominis DTs, providing symptom relief and favorable early tumor response. Further studies are warranted to evaluate long-term outcomes and validate this approach in broader clinical settings. Full article

Background: The Profunda Artery Perforator (PAP) flap is a viable alternative to the Deep Inferior Epigastric Perforator (DIEP) flap, particularly for patients with low BMI and therefore insufficient abdominal tissue. To reduce the high complication rate, especially in our low BMI patient population, we have adapted the use of the vertical skin island design. This study compares complication rates and long-term outcomes of vertical versus horizontal skin island designs in PAP flap breast reconstruction. Methods: This prospective, single-center study included 20 patients who underwent PAP flap breast reconstruction. Quality of life and scar quality were assessed using the BREAST-Q and POSAS questionnaires. Additionally, the cosmetic outcomes were analyzed by four plastic surgeons. Results: Mean BMI in the vertical group was 23.9 kg/m² and 22.7 kg/m² in the horizontal group. Mean flap weight was 326 g for the vertical group and 355 g for the horizontal group. Fewer complications were observed at the donor site in the vertical group (Clavien–Dindo Classification 3b at donor site: p = 0.25). The BREAST-Q evaluation revealed significantly better results regarding the psycho-social well-being (p = 0.04) in patients with the horizontalskin island design. Scar evaluation using the POSAS revealed that the scar was perceived as thinner (p = 0.02), less pigmented (p = 0.03), and showed less relief (p = 0.02) in the vertical group. No significant difference was observed in the overall scar assessment by observers (p = 0.46). The aesthetic analysis by plastic surgeons showed significantly better results in the horizontal group. Conclusions: The vertical skin island design in PAP flap breast reconstruction was associated with lower complication rates and better scar quality compared to the horizontal design. Surgeons, however, rated the overall aesthetic outcome of the vertical design less favorably. These findings highlight the importance of balancing donor site morbidity with overall aesthetic results. Full article

Background/Objectives: Accurately determining the bacterial bioburden that survives preoperative skin preparation (PSP) is critical in understanding PSP efficacy and its limitations. Clinical PSP approval relies on a bacterial sampling method described in the American Society for Testing and Materials (ASTM) standard E1173-15. Though common, this technique may overlook deep-dwelling skin bacteria. The objective of this study was to test the hypothesis that deep-dwelling skin flora would survive PSP, and more growth would be detected using a destructive sampling method compared with ASTM E1173-15. Methods: Twelve female participants with a scheduled deep inferior epigastric perforator (DIEP) artery flap procedure at the Huntsman Cancer Institute in Salt Lake City, UT, were enrolled between January and August 2024. PSP was performed using three 26 mL ChloraPrep applicators (2% CHG), and excess tissue was collected. Bacteria in the skin were quantified using a destructive sampling method and ASTM E1173-15, and bioburden outcomes were compared. Two participants were excluded from the quantitative analysis. Results: Bacteria survived PSP in every participant. A greater diversity and more bacteria were quantified with destructive sampling than ASTM E1173-15 (p < 0.01). Generally, anaerobic bioburden values were higher than aerobic bioburden values. Higher bioburden correlated with processing more skin from a participant. Genotypic identification of select isolates identified Staphylococcus epidermidis and Cutibacterium acnes (formerly known as Propionibacterium acnes) as surviving bacteria, among others. Immunofluorescence revealed bacteria in all skin layers. No participant exhibited clinical signs of infection in the abdominal region. Human data corroborated previous porcine data collected using destructive skin sampling after PSP. Conclusions: Clinical PSP application does not create a sterile field. Destructive skin sampling techniques may be more effective than ASTM E1173-15 at resolving bacterial PSP survivors contributing to SSI risk. Full article

Background: The superficial vessel system in the lower abdomen, including the superficial circumflex iliac artery (SCIA) and superficial inferior epigastric artery (SIEA), is widely used in reconstructive microsurgery. Preoperative ultrasonography, particularly ultra-high-frequency ultrasound (UHFUS), enhances surgical planning by providing high-resolution imaging. This study aimed to utilize UHFUS to examine the SCIA, SCIV, SIEA, and SIEV for reconstructive surgery planning. Methods: This prospective study included 25 patients undergoing free DIEP flap breast reconstruction. Patients with horizontal lower abdominal scars were excluded. Preoperative UHFUS, using a 48 MHz transducer, was performed to map and measure the superficial branch of SCIA (sSCIA), SCIV, SIEA, and SIEV. The vessel location, diameter, depth, and course were documented and analyzed. Results: Twenty-five female patients (50 hemiabdomens) aged 41 to 66 were included. The mean BMI was 21.6 kg/m² (range: 18.4–30.4 kg/m²). At the ASIS level, the mean diameter of the sSCIA, SIEA, SCIV, and SIEV were 0.76 mm, 0.63 mm, 1.72 mm, and 2.18 mm, respectively. A superior lateral pedicle course was observed in 98% of the sSCIA. All patients had at least one detectable superficial artery, with 96% showing detectable arteries on both sides of the lower abdomen. Conclusions: UHFUS effectively maps superficial vessels in the lower abdomen for reconstructive surgery. The SCIA and SCIV are reliably detectable, while the SIEA is less consistently identified. UHFUS enhances flap design by providing precise vessel localization and sizing, leading to safer and more efficient surgeries. Full article

Background: The deep inferior epigastric artery perforator (DIEP) flap is currently the most widely used method for autologous breast reconstruction. Its primary advantage over the transverse rectus abdominis muscle (TRAM) flap is the reduction in donor-site morbidity, as it preserves the integrity of the abdominal muscles and motor nerves. Importantly, each patient’s unique vascular anatomy requires an individualized approach to perforator selection and the surgical technique. Objective: We aimed to minimize donor-site morbidity and refine the perforator selection strategy in delayed DIEP flap breast reconstruction using the abdominal perforator exchange (APEX) technique. Materials and Methods: In this study, we prospectively and retrospectively analyzed the use of the APEX technique in patients undergoing delayed DIEP flap breast reconstruction between April 2020 and October 2024. All patients underwent preoperative non-contrast magnetic resonance angiography of the donor area. A total of 106 patients were enrolled and divided into two groups: 34 patients underwent reconstruction using the APEX technique, and 72 patients received standard DIEP flap breast reconstruction. Results: Our study demonstrated a statistically significant increase in operative time, averaging 30.5 min in the APEX group (p < 0.05). There was also a significant difference in the incidence of marginal flap necrosis between the two groups. No cases of myotomy were observed, and motor nerve transection was required in one case. Conclusions: The APEX technique has been shown to be reliable when standard dissection would compromise the neuromuscular anatomy of the abdominal wall without compromising perfusion in the flap. Full article

Median Arcuate Ligament Syndrome, also known as Dunbar’s syndrome, is a rare condition caused by stenosis of the celiac artery (CAS) through the fibrous arch connecting the diaphragmatic branches. It manifests as postprandial abdominal pain, nausea, vomiting, weight loss and increased epigastric tenderness. The condition most commonly affects young females without coexisting vascular comorbidities. Diagnosis is difficult due to the non-specific symptoms, often overlapping with other gastrointestinal diseases. Standard investigations include duplex ultrasound, computed tomography angiography (CTA) and contrast-enhanced magnetic resonance imaging (CE-MRA). Treatment mainly consists of surgical release of the arch ligament, which can be performed by open, laparoscopic or robotic methods. Surgery is often supported by celiac truncal stenting for residual stenosis, which significantly improves vascular flow. Alternative approaches include visceral plexus blocks and novel hybrid techniques, such as a combination of ligament release and endovascular treatment of the celiac trunk. In severe cases, vascular by-passes are recommended. The aim of this paper is to discuss the clinical manifestations, diagnostic possibilities, therapeutic options and directions for further research on MALS from the perspective of a vascular surgeon. It emphasizes the need for a multidisciplinary approach, including collaboration between the surgeon, radiologist, gastroenterologist and psychologist, which enables comprehensive disease management and improved quality of life for patients. In addition, the need for further development of diagnostic and therapeutic methods for early diagnosis and effective treatment was pointed out. Full article

Background/Objectives: The omental fat-augmented free flap (O-FAFF) is a novel technique for autologous breast reconstruction in patients who cannot use or who elect not to use more traditional donor sites. While the clinical outcomes of O-FAFF have been well studied, associated costs and resource utilization have not yet been investigated. The O-FAFF technique involves the use of an acellular dermal matrix and a two-team approach for laparoscopic harvest of the omentum, thereby increasing surgical and materials costs. This study compares the longitudinal cost-effectiveness study of O-FAFF breast reconstruction compared to reconstruction using implants or abdominal donor sites (deep inferior epigastric artery flap or transverse rectus abdominis myocutaneous flap). Methods: This cost-effectiveness analysis compared O-FAFF to abdominal free flap and implant-based reconstruction in adults. Markov cohort modeling was used to study cost-effectiveness from the payer perspective. Results: Compared to implant-based reconstruction, the incremental cost of O-FAFF reconstruction was USD 9227 and the incremental gain in breast quality-adjusted life-year (B-QALY) was 0.95, resulting in an incremental cost-effectiveness ratio of USD 9712.64/B-QALY gained, which is well under the acceptable cost-effectiveness threshold of USD 50,000 per B-QALY. Compared to abdominal flap reconstruction, O-FAFF reconstruction was associated with an incremental decrease in direct costs of USD 1410.10 and an incremental gain in B-QALYs of 0.36 and was thus the dominant strategy. Conclusions: The O-FAFF breast reconstruction technique is a cost-effective alternative to more traditional methods of breast reconstruction, including abdominal free flap techniques and implant-based reconstruction. As such, the O-FAFF technique represents an important novel modality for primary autologous reconstruction. Full article

Introduction: Reconstructive plastic surgeons have made great strides in the field of breast reconstruction to achieve the best results for patients undergoing treatment for breast cancer. As microsurgical techniques have evolved, these patients can benefit from additional treatment modalities to optimize the results of the reconstruction. Free tissue transfer from alternative donor sites for breast reconstruction is routinely performed, which was not possible in the past. Neurotization is now possible to address the numbness and lack of sensation to the reconstructed breast. For those patients who develop lymphedema of the upper extremity as a result of their breast cancer care, supermicrosurgical options are now available to treat and even to prevent the development of lymphedema. This study presents a narrative review regarding the latest microsurgical advancements in autologous free flap breast reconstruction. Methods: A literature review was performed on PubMed with the key words “autologous free flap breast reconstruction”, “deep inferior epigastric perforator flap”, “transverse upper gracilis flap”, “profunda artery perforator flap”, “superior gluteal artery perforator flap”, “inferior gluteal artery perforator flap”, “lumbar artery perforator flap”, “breast neurotization”, “lymphovenous bypass and anastomosis”, and “vascularized lymph node transfer”. Articles that specifically focused on free flap breast reconstruction, breast neurotization, and lymphedema surgery in the setting of breast cancer were evaluated and included in this literature review. Results: The literature search yielded a total of 4948 articles which were screened. After the initial screening, 413 articles were reviewed to assess the relevance and applicability to the current study. Conclusions: Breast reconstruction has evolved tremendously in recent years to provide the most natural and cosmetically pleasing results for those patients undergoing treatment for breast cancer. As technology and surgical techniques have progressed, breast cancer patients now have many more options, particularly if they are interested in autologous reconstruction. These advancements also provide the possibility of restoring sensibility to the reconstructed breast as well as treating the sequela of lymphedema due to their cancer treatment. Full article

Microsurgical autologous breast reconstruction (MABR) remains the gold standard technique of breast reconstruction, providing a durable, natural, and aesthetically pleasing result. However, some patients may not be candidates for a traditional deep inferior epigastric perforator (DIEP) flap, either due to abdominal tissue paucity, the need for higher-volume reconstruction, or prior surgical procedures. In these patients, alternative flaps must be considered to achieve the optimal result. Such configurations include the conjoined (or double pedicle) DIEP flap, and alternative flaps such as the lumbar artery perforator (LAP) and profunda artery perforator (PAP) flaps, which can be combined in a stacked fashion. By combining multiple flaps in a conjoined or stacked fashion, breast reconstruction can be optimized to fulfill the three critical components of breast reconstruction in restoring the skin envelope, breast footprint, and conus shape. When harvesting multiple flaps, the surgical sequence of events must be meticulously planned to ensure an efficient and successful operation. Preoperative imaging can aid the surgeon in identifying the ideal perforator, assess for side branches for possible intra-flap anastomoses, expedite the operative time, and decrease intraoperative complications. Reconstructive surgeons should be familiar with the variety of configurations with conjoined and/or stacked flaps to address patient-specific reconstructive needs. Full article

Introduction: Sarcoma resection often leaves patients with big defects only amenable through microsurgical reconstruction. In such cases, it is hard for the surgeon to uphold low donor-site morbidity with an aesthetic result. The purpose of this study was to investigate the clinical outcome and the patient’s perception regarding the donor site in a cohort of patients undergoing microsurgical reconstruction with lateral thigh and lower abdominal perforator flaps. Methods: A retrospective evaluation of all patients who underwent sarcoma reconstruction with flaps harvested from the lower abdominal region (deep inferior epigastric artery perforator flap, superficial circumflex iliac artery perforator flap) or lateral thigh region (anterolateral thigh perforator flap and its variations) was performed. Only patients with defects greater than 100 cm² were included. Patient demographics and operative variables were recorded, together with complications. Patient satisfaction and quality of life with the donor site were registered using the SCAR-Q questionnaire, which was administered at least six months post-operatively. Results: Eighteen anterolateral thigh (ALT) perforator flaps and twenty-two deep inferior epigastric artery perforator (DIEP) and superficial circumflex iliac artery perforator (SCIP) flap procedures were performed. The two groups were homogeneous for major post-operative complications (p > 0.999). Patient satisfaction with the donor site measured using the SCAR-Q questionnaire showed significantly higher scores in the DIEP/SCIP group when compared with the thigh group (p < 0.001), indicating a superiority of the lower abdominal area as an aesthetic donor site. Conclusions: The DIEP and SCIP flaps are a versatile option for reconstructing large soft-tissue defects following sarcoma resection. Therefore, flaps harvested from the lower abdomen yield a higher patient satisfaction with the donor site, which is a feature worth considering when planning a reconstructive procedure. Full article

Vascular calcification has a global health impact that is closely linked to bone loss. The Receptor Activator of Nuclear Factor Kappa B (RANK)/RANK ligand (RANKL)/osteoprotegerin (OPG) system, fundamental for bone metabolism, also plays an important role in vascular calcification. The Leucine-rich repeat-containing G-protein-coupled receptor 4 (LGR4), a novel receptor for RANKL, regulates bone remodeling, and it appears to be involved in vascular calcification. Besides RANKL, LGR4 interacts with R-spondins (RSPOs), which are known for their roles in bone but are less understood in vascular calcification. Studies were conducted in rats with chronic renal failure fed normal or high phosphorus diets for 18 weeks, with and without control of circulating parathormone (PTH) levels, resulting in different degrees of aortic calcification. Additionally, vascular smooth muscle cells (VSMCs) were cultured under non-calcifying (1 mM phosphate) and calcifying (3 mM phosphate) media with different concentrations of PTH. To explore the role of RANKL in VSMC calcification, increasing concentrations of soluble RANKL were added to non-calcifying and calcifying media. The effects mediated by RANKL binding to its receptor LGR4 were investigated by silencing the LGR4 receptor in VSMCs. Furthermore, the gene expression of the RANK/RANKL/OPG system and the ligands of LGR4 was assessed in human epigastric arteries obtained from kidney transplant recipients with calcification scores (Kauppila Index). Increased aortic calcium in rats coincided with elevated systolic blood pressure, upregulated Lgr4 and Rankl gene expression, downregulated Opg gene expression, and higher serum RANKL/OPG ratio without changes in Rspos gene expression. Elevated phosphate in vitro increased calcium content and expression of Rankl and Lgr4 while reducing Opg. Elevated PTH in the presence of high phosphate exacerbated the increase in calcium content. No changes in Rspos were observed under the conditions employed. The addition of soluble RANKL to VSMCs induced genotypic differentiation and calcification, partly prevented by LGR4 silencing. In the epigastric arteries of individuals presenting vascular calcification, the gene expression of RANKL was higher. While RSPOs show minimal impact on VSMC calcification, RANKL, interacting with LGR4, drives osteogenic differentiation in VSMCs, unveiling a novel mechanism beyond RANKL-RANK binding. Full article

The purpose of this study is to compare outcomes in patients undergoing buried and non-buried free flaps for breast reconstruction, in addition to evaluating the safety and reliability of venous flow couplers. A retrospective review was performed of all patients undergoing free flap breast reconstruction between 2013 and 2023. The primary outcomes were free flap failure, complications and the number of procedures required to complete the reconstructive journey. A total of 322 flaps were performed in 254 consecutive patients, with 47.5% (n = 153) being buried and 52.0% (n = 169) being non-buried reconstructions. The most common flap of choice being deep inferior epigastric artery perforator flaps (81.9%) followed by profunda artery perforator flaps (14.3%). There was no significant difference between the two groups in complications, including flap failure (buried 2.0% vs. non-buried 1.8% p = 0.902). There was a significant reduction in the number of procedures required to complete the reconstructive journey, with 52.2% (n = 59) of patients undergoing single-stage breast reconstruction in the buried group compared with only 25.5% (n = 36) in the non-buried group (p < 0.001). Two (0.6%) patients experienced a false negative in which the signal of the flow coupler was lost but the flap was perfused during re-exploration. No flap losses occurred without being identified in advance by a loss of audible venous flow signal. Buried free flap breast reconstruction is safe and requires fewer operations to complete patients’ reconstructive journey. Flow couplers are a safe and effective method of monitoring buried free flaps in breast reconstruction. Full article