Left Artery Research Articles

Significant Calcification of an Entire Aortic Tree with Renal Artery Subocclusion: Acute Kidney Injury, Ischemic Kidney Disease, and the Tissue Viability Question—A Case Report

Background: Undiagnosed and untreated atherosclerotic renal artery stenosis (ARAS) can result in end-stage kidney disease (ESKD). To obtain an accurate diagnosis, it is crucial to recognize the symptoms and signs suggesting renal artery stenosis (RAS) and perform appropriate diagnostic and treatment procedures afterward. Case Presentation: We present a case of a 60-year-old female patient with hypertensive crisis, acute heart failure (HF), and pulmonary edema as the initial signs of acute kidney injury (AKI) caused by right RAS and left renal artery occlusion in the presence of severe aortic atherosclerosis revealed on computed tomography angiography (CTA) of the abdomen. The patient’s renal function recovered completely following percutaneous transluminal angioplasty (PTA) with stent implantation in the right renal artery at the site of subocclusion. Conclusions: Even in patients with concomitant disorders like type-2 diabetes mellitus (T2DM), hypertension (HTN), or HF, the dilatation of significantly narrowed renal arteries due to severe calcifications can result in complete renal function recovery.

Chimeric Osteocutaneous Free Flap Solution to Variation in Vascular Anatomy

Summary: When squamous cell carcinoma necessitates mandibular resection, the resultant defect can be complex. An osteocutaneous fibula free flap is an effective reconstruction option, typically supplied by the peroneal artery for both the fibula and skin flap. In this case report, an anatomical variation was found: the skin paddle was supplied by soleus musculocutaneous perforators of the posterior tibial artery, whereas the fibula was supplied by the peroneal artery. The posterior tibial artery perforator vessels from the skin paddle were anastomosed to the distal end of the peroneal vessels. The peroneal vessels were anastomosed to the left superior thyroid artery and a branch of the internal jugular vein, with confirmation of adequate blood flow via implantable Doppler signal. Septocutaneous perforators from the peroneal artery are absent in 5%–10% of the population; thus, an approach to anomalous vasculature in the setting of fibula free flap harvest that decreases morbidity and multiple operations is valuable.

Outcome of single versus dual antiplatelet therapy after complex endovascular aortic repair

Despite the widespread use of branched (bEVAR) and fenestrated endovascular aortic repair (fEVAR) for complex aortic pathologies, there are no reliable recommendations regarding postsurgery antiplatelet therapy. We therefore evaluated the outcome of single (SAPT) and dual antiplatelet therapy (DAPT) following fEVAR and bEVAR. A total of 63 patients from two German centers treated for complex aortic pathologies were included in this retrospective study. Patient data and computed tomography angiograms were analyzed. Kaplan-Meier analyses for overall survival and freedom from target vessel (TV)-related complications were performed. The outcomes were compared between SAPT versus DAPT and bEVAR versus fEVAR. Univariate logistic regression was applied to analyze the correlation between TV patency and various anatomical aortic parameters. In total, 30 patients were treated with fEVAR and 33 with bEVAR. Of these, 19 patients received SAPT and 44 received DAPT postsurgery. Anatomical aortic characteristics and comorbidities were comparable among groups. Overall survival was 95% (±5.1) for SAPT and 88% (±8.8) for DAPT after 36mo of follow-up. Patency was evaluated individually for each TV SAPT versus DAPT (celiac trunk 100%±0 versus 87%±9.6; superior mesenteric artery 86%±13.2 versus 100%±0; left renal artery 92%±8.0 versus 95%±3.6; right renal artery 72%±15.2 versus 81%±9.9). Freedom from endoleak was 35% (±13.7) for SAPT versus 30% (±13.8) for DAPT. There was no statistically significant difference for SAPT versus DAPT or for bEVAR versus fEVAR. Further, none of the anatomical aortic characteristics and bridging stent graft-related parameters analyzed predicted TV occlusion in logistic regression analysis. We did not observe differences in overall survival, endoleak, and TV patency rates between SAPT and DAPT treated patients following bEVAR and/or fEVAR. Patient-specific factors therefore appear to be more relevant for the long-term outcomes rather than the antiplatelet regime applied postsurgery.

Endothelial-specific deletion of connexin 43 improves renal function and structure after acute kidney injury

BackgroundWe have previously reported that the gap junction protein connexin 43 (Cx43) was upregulated in chronic renal disease in humans and rodents and plays a crucial role in the progression of experimental nephropathy. In this study, we investigated its role after renal ischemia/reperfusion (rIR), which is a major mechanism of injury in acute renal injury (AKI) and renal transplant graft dysfunction.MethodsWild-type mice (WT) and mice in which Cx43 expression was genetically reduced by half (Cx43 ±) were unilaterally nephrectomized. The left renal artery was subsequently clamped, with reperfusion of varying duration. Mice with tubular- or endothelial-specific deletion of Cx43 were also used to assess the effect of this connexin in each cell type after rIR. Kidneys were assessed for histological evaluation, immunohistochemistry, and RT-PCR.ResultsBlood urea nitrogen and creatininemia were progressively elevated in WT mice and picked up 48 h after rIR. At the same time point, severe tubular necrosis and dilation occurred in the cortico-medullary junction of the injured kidneys with accompanying massive neutrophil infiltration. Interestingly, Cx43 expression was progressively increased within the tubulointerstitial compartment during kidney damage progression and was paralleled closely by that of markers of renal dysfunction. Cx43 ± mice showed fewer tubular lesions, less inflammation, and further improved renal function. Similar results were observed in mice where Cx43 was specifically deleted within the vascular endothelium. In contrast, Cx43 deletion in renal tubules did not significantly improve renal structure and function after rIR.ConclusionOur findings suggest that endothelial Cx43 plays a crucial role in AKI.

Vascular hemodynamic effects of penile revascularization surgery and the role of resistive index in follow-up

BackgroundTo evaluate the effects of penile revascularization surgery on penile vascular hemodynamics and to assess the utility of the resistive index (RI) as an objective parameter for postoperative patient follow-up.MethodsThis study included a total of 35 patients who underwent penile revascularization. Penile color Doppler ultrasonography was performed preoperatively and at the third postoperative month to evaluate cavernosal arteries, dorsal arteries, deep dorsal vein, and inferior epigastric artery. During these evaluations, peak systolic velocity, end diastolic velocity, and resistive index were measured. The International Index of Erectile Function questionnaire was administered before surgery and at the third postoperative month. In addition, corpus cavernosum electromyography and cavernosometry tests were performed in all cases preoperatively. Anastomotic patency was assessed using computed tomography angiography at the end of the follow-up period.ResultsThe mean preoperative resistive index values were determined to be 0.74 ± 0.07 and 0.73 ± 0.09 cm/s for the right and left cavernosal arteries, respectively, and these values increased to 0.95 ± 0.09 and 0.96 ± 0.06 cm/s, respectively, at the last postoperative control. The mean International Index of Erectile Function-5, 15 scores for the right and left cavernosal arteries were 8.52 ± 4.83 and 19.4 ± 8.54, respectively, preoperatively, and these scores improved to 15.26 ± 4.50 and 35.76 ± 13.65, respectively, at the last postoperative follow-up.ConclusionThe results of this study suggest that the resistive index can be used as an objective parameter in the diagnosis of erectile dysfunction of vascular origin and in the follow-up and management of the disease following penile revascularization.Trial registrationNCT06350019/04/03/2024 (retrospectively registered).

False anastomotic femoral aneurysm associated with multi-aneurysmal disease

Anastomotic pseudoaneurysms and true femoral aneurysms are two infrequent arterial entities of low incidence, and together, they are even less common. We present the case of a 71-year-old patient with a history of arterial hypertension who has a history of multiple long-standing vascular interventions: abdominal aortic aneurysm with aortic-iliac anastomosis with subsequent femoral-femoral bypass crossed by occlusion of the left branch; and femoropopliteal bypass for left popliteal artery aneurysm. She presents a large pulsatile mass in the left inguinofemoral region without left popliteal and pedal pulses with the viable limbs. The tomographic study showed a pseudoaneurysm of the left common femoral artery with partial thrombosis, dependent on the distal anastomosis of the old femoral-femoral bridge, and a bilateral true fusiform aneurysm of the common and superficial femoral artery with extensive mural thrombosis. It was decided to perform surgery to resect the mixed aneurysmal lesions, perform a right iliac-femoral prosthetic bridge, and replace the crossed femoral-femoral bypass; both included shunts to the deep femoral arteries. With suspicion of thrombosis of the old femoropopliteal bypass, thromboembolectomy of the left leg is performed through the superficial femoral artery, the anastomosis is permeabilized with recovery of the distal pulses.

Delayed Horner's syndrome and acute stress disorder caused by a large dog bite on the neck: Case report.

The occurrence of delayed Horner's syndrome caused by a dog bite to the neck is rarely reported. Acute stress disorder (ASD) can easily be neglected when diagnosing this disease in trauma patients who cannot be effectively observed. The symptoms of Horner's syndrome may not be readily detected in patients with ASD. In this report, we present a rare case of a 55-year-old woman with delayed Horner's syndrome and ASD who initially presented with an internal jugular vein injury caused by a large dog bite on her left neck. Delayed Horner's syndrome and ASD. Neck exploration and internal jugular vein repair were performed under general anesthesia. After the occurrence of Horner's syndrome and ASD, methylprednisolone and mecobalamin were administered to relieve edema and promote nerve repair, compound anisodine was injected once daily near the left superficial temporal artery to improve microcirculation, escitalopram oxalate and lorazepam were administered to treat anxiety and improve sleep, psychotherapy and narrative nursing were administered once a week. In the follow-up 4 months at the outpatient clinic after discharge, the patient's Horner's syndrome had not healed, but she did not complain of significant discomfort and affected appearance, and ASD did not recur or develop post-traumatic stress disorder. Surgeons should be aware of the possibility of sympathetic nerve injury in patients with deep neck injury, especially in patients with internal jugular vein injury. Peripheral nerves should be explored during the operation. Attention should be paid to the possibility of delayed neurological symptoms and the prevention and treatment of ASD after operation.

Can simultaneous coronary and peripheral angiography alter the treatment planning in Fontaine stage IV peripheral arterial disease?

Peripheral arterial disease (PAD) and coronary artery disease (CAD) are major contributors to global morbidity and mortality. Many PAD patients remain asymptomatic for CAD, which often leads to undetected coronary artery involvement. This hidden coronary disease poses significant risks, particularly following peripheral revascularization, as increased cardiac demand can precipitate complications. This cross-sectional descriptive study assessed the prevalence of coronary artery stenosis in patients with Fontaine Stage IV peripheral arterial disease. Simultaneous angiography of both the coronary and lower extremity arteries was performed, and the severity of arterial stenosis was rigorously evaluated. The correlation between the extent of peripheral and coronary artery disease was analyzed. A total of 60 patients (63.3% male, 36.7% female; mean age 65.23 ± 9.86 years) were included. Comorbidities were common, with 90% having diabetes, 50% hypertension, 23.3% hyperlipidemia, and 30% smoking history. Severe peripheral artery stenosis was frequently observed, particularly in the posterior tibial artery (total occlusion in 26.6% and 20% of the right and left arteries, respectively). Significant coronary involvement was also prevalent, with 51.7% exhibiting three-vessel disease. Coronary revascularization was required in the majority of cases (CABG: 40%, PCI: 35%), with a higher proportion among women (77.2%) and men (73.7%). This study highlights the necessity of comprehensive coronary evaluation in patients with advanced lower limb ischemia. A substantial proportion of these patients have silent but critical coronary disease, which, if left unaddressed, could result in serious post-revascularization complications.

Preoperative and Postoperative Arterial Adaptation in Patients with Acute Aortic Dissection.

Background: Spinal cord ischemia is one of the most serious complications after an aortic repair. To date, there is no evidence for arterial changes during an aortic dissection or for the observation of such arteries after an aortic repair. The aim of this study was to compare spinal-cord-supplying arteries in patients with an acute aortic dissection, preoperatively and postoperatively, with patients without an acute aortic dissection. Methods: Preoperative and postoperative contrast-enhanced computed tomography scans of 25 patients who had undergone the frozen elephant trunk procedure to treat an aortic dissection and 25 patients who qualified for a transcatheter aortic valve replacement without an acute aortic dissection and atherosclerosis of the analyzed vessels, treated as a control group, were reconstructed and retrospectively analyzed with the detailed medical data of the patients. The aortic branches with the ability to supply blood to the spinal cord as described in the literature were further analyzed. Results: The preoperative arterial diameters of the left internal thoracic artery, the left musculophrenic artery, and the left and right supreme intercostal arteries were significantly larger compared to the postoperative measurements. In addition, the preoperative measurements of the diameters of the left vertebral artery, right internal thoracic artery, left lateral thoracic artery, and left common iliac artery were significantly larger than in the control group. Conclusions: The internal thoracic arteries and supreme intercostal arteries may play a crucial role in providing additional blood supply to the spinal cord.

ABDOMINAL SPLANCHNIC ARTERIAL MAPPING OF Cerdocyon thous: HELPING IN SURGICAL PLANNING

Inconceivable that in the 21st century, veterinary extrapolate knowledge of domestic animal anatomy to wild animals, neglecting the patient, especially in the face of the increasing number of professionals claiming to be wild animal specialists. Thus, we mapped the abdominal splanchnic arterial vasculature of Cerdocyon thous, with the aim of contributing to professionals who work directly with wild animal surgery. In specimens whose arterial system was evidenced by stained latex, we identified anatomical variations when compared to other species. The jejunal arteries issued nine branches, and the caudal abdominal phrenic and cranial arteries arose from the common trunk of the abdominal aorta. The cranial abdominal artery was bifurcated and inserted into the cranial pole of the left kidney, while the left renal artery was bifurcated in one specimen; in another specimen, the left renal artery was double and penetrated the renal pelvis. One specimen had the right kidney more caudally in relation to the left kidney, similar to the corresponding renal artery. The left renal artery originated from the left adrenal artery, and the right internal iliac artery was bifurcated. Given these findings, such knowledge is crucial in the clinical and surgical care of this species, as it will allow for the greatest success of the professionals involved.

Endovascular Approach to Concurrent Anterior Cranial Fossa Dural AVF and Concurrent Flow-Related Ophthalmic Artery Aneurysm: A Case Study

AbstractDural arteriovenous fistulas (DAVFs) with concurrent flow-related ophthalmic artery aneurysms, particularly intraorbital aneurysms, are rare. Retrograde cortical blood flow and sinus thrombosis heighten the risk of rupture and optic nerve compression, yet treatment strategies remain poorly defined. This study aims to explore effective management for these complex cases. A 66-year-old hypertensive man presented with an acute severe headache, loss of consciousness, and decreased vision in the left eye. Imaging revealed a left frontal intracranial hemorrhage and an anterior cranial fossa DAVF with a left ophthalmic artery aneurysm. Endovascular embolization via the left ophthalmic artery, using a microcatheter distal to the aneurysm and controlled reflux of glue injection (N-butyl cyanoacrylate and lipiodol), successfully treated the DAVF and ophthalmic artery aneurysm. Visual acuity improved to finger counting at 1 foot, with no residual DAVF at 6 months. This case demonstrates that controlled glue embolization is a viable alternative when microsurgery is not feasible due to complex anatomy.

Target Artery Outcomes Following Endovascular versus Open Surgical Repair of Thoracoabdominal Aortic Aneurysms - A Single Center Comparative Study.

To compare target artery (TA) outcomes after fenestrated or branched endovascular aortic repair (FB-EVAR) versus open surgical repair (OSR) of thoracoabdominal aortic aneurysms (TAAAs). Few studies have compared TA outcomes after endovascular incorporation and open reconstruction. Among consecutive patients who underwent elective OSR or FB-EVAR of TAAAs (2008-2020), we reviewed those who had postoperative imaging studies evaluating TA. Data of FB-EVAR patients were obtained from a prospectively maintained institutional database. TAs included celiac, superior mesenteric, right and left renal arteries treated during TAAA repairs. Primary endpoint was TA patency (primary and secondary). There were 131 patients (487 TAs) treated by OSR and 350 (1,300 TAs) by FB-EVAR. In the OSR group, 440 TAs (90.3%) were reconstructed by bypasses, and 47 (9.7%) by reimplantation. In the FB-EVAR group, 841 TAs (64.7%) were incorporated by fenestrations, and 459 (35.3%) by DBs. Thirty-day TA primary patency rates were not significantly different between FB-EVAR and OSR (99.4%% vs. 99.0%, P=0.36), but secondary patency rate was higher after FB-EVAR (99.8% vs. 99.0%, P=0.02). Three-year primary patency rates were 95.9% (95% confidence interval [CI], 94.7-97.2%) and 94.7% (95% CI, 92.2-97.2%), respectively; secondary patency rates were 98.5% (95% CI, 97.7-99.2%) and 94.7% (95% CI, 95.7-99.2%), respectively. There were no significant differences in late primary patency and secondary patency between groups (each P<0.05). Target artery primary and secondary patency rates following elective OSR or FB-EVAR were high. Endovascular repair was not associated with loss of primary patency and late secondary patency.

Effect of left colonic artery preservation on perfusion at the anastomosis in rectal cancer surgery evaluated with intraoperative ultrasound

PurposeIntraoperative ultrasound was used to assess the flow velocity in the marginal vessel arch adjacent to the anastomosis, critical for evaluating the anastomotic blood supply. This technique also enabled us to investigate the potential effects of preserving the left colonic artery on the perfusion of the anastomosis.MethodsThis prospective study included 40 rectal cancer patients who underwent laparoscopic anterior resection between January 2021 and January 2023. The length of the inferior mesenteric artery (IMA) was measured from its origin to the first branch, and the diameters of the mesenteric vessel IMA, left colonic artery (LCA), and marginal mesenteric artery (MMA) were recorded. Blood flow velocity and Doppler ultrasound waveforms of the MMA near the anastomosis were collected. Measurements were taken both before and after clamping the IMA using atraumatic forceps. The tardus parvus pattern of the MMA ultrasound waveforms was recorded to evaluate the hypoperfusion status of the anastomosis.ResultsThe mean velocities of MMA were 47.9 cm/s before clamping and 34.9 cm/s after atraumatic clamping, indicating significant differences (p < 0.05). Thirteen patients (32.5%) exhibited a Tardus parvus pattern after IMA atraumatic clamping. Multivariate analysis revealed older age and LCA diameter as independent clinical predictors of the hypoperfusion status after IMA clamping.ConclusionsPreservation of the LCA may improve perfusion near the anastomosis during rectal cancer surgery. Older age and LCA diameter can be considered useful predictors of the mesenteric hypoperfusion status after IMA ligation. Intraoperative ultrasound can evaluate the perfusion of the MMA near the anastomosis.Chinese Clinical Trial Registry—Registration number: ChiCTR2000041475

Ballooning and Bursting of Barrels and Pipes: A Rare Case of Suspected Vascular Ehlers–Danlos Disease

Vascular Ehler–Danlos disease (vEDS), a rare subtype of a rare disease, is a life-threatening disease, with an increased risk for spontaneous vascular or visceral rupture. These patients have fatal complications ranging from vascular aneurysms, dissection, and rupture of systemic vessels to frequent thromboembolic events, the common causes of death in these individuals with a shortened life span. In the present case, a 28-year-old male with history of shoulder dislocations and spontaneous colon perforation presented to the primary care clinic with right lower extremity swelling and pain. His history includes presentation to the emergency department with left lower leg swelling with compartment syndrome one year prior. A CT angiogram of lower extremities and abdomen revealed acute arterial extravasation of the left posterior tibial artery, indicating a ruptured aneurysm along with aneurysms of the splenic artery and left common iliac artery. He was treated with a saphenous vein graft, but was associated with post-operative complications that necessitated below-knee amputation. CT angiogram of his right leg revealed occlusion of the anterior tibial and peroneal arteries with aneurysms, and, ultimately, he was referred to a tertiary care center for aneurysm embolization. This case report emphasizes the frequent vascular complications encountered in vascular EDS patients, and thus advocates for close and regular monitoring for early referral and surgical management of their vascular anomalies. Finally, genetic counseling and screening of asymptomatic family members should be routinely implemented in these patients.

Second-trimester Uterine Artery Doppler Pulsatility Index in Singleton Pregnant Women with and without Risk of Pre-eclampsia

Background: Preeclampsia (PE) is gestational hypertension and one of the most serious disorders in pregnant women. Objective: This study aimed to compare second-trimester uterine artery Doppler pulsatility index (UAPI) in singleton pregnant women with and without risk of PE. Methods: A case-control study was carried out among 200 singleton pregnant women in the second trimester of pregnancy, who were referred to Imam Hospital in Ahvaz (Iran). The data were recorded on their demographic, obstetric, clinical characteristics, and Doppler indices. The average UA-PI value was considered as the mean PI between the right and left arteries. Women who were categorized into Groups 1 and 2 had a moderate-high and low risk of PE, respectively. Results: The mean UA-PI, right UA-PI, left UA-PI, systolic and diastolic blood pressures (BP), age, body mass index (BMI), and abdominal circumference (AC) of women in Group 1 were significantly higher than those in Group 2 (p&lt;0.05). Furthermore, Group 1 had a higher frequency of abortions, comorbidities, abnormal UA Doppler results, and nulliparous women than Group 2 (p&lt;0.05). Based on maternal age (&lt;35, ≥35), BMI (&lt;25, ≥25), comorbidities (yes, no), and nulliparity (yes, no) categories, those who were in Group 1 had a significantly higher mean systolic and diastolic BP, UA-PI, right UA-PI, and left UA-PI than their counterparts in Group 2 (P&lt;0.001). Conclusion: This study declared the second-trimester UA-PI had good potential for timely prediction of PE risk in pregnant women.

Resultado de la preservación de las arterias bulbares durante la uretroplastia anastomótica para la lesión uretral por fractura de pelvis

ObjectiveTo the present long-term outcomes of the vascular-sparing approach during reconstruction of pelvic fracture urethral injuries (PFUI) described by Gomez et al. Material and methodsAnastomotic reconstruction of PFUI is performed without transecting the bulb of the spongiosum, to preserve the antegrade flow of the bulbar arteries. After exposure of the urethra, the bulbar arteries are located using a Doppler stethoscope. The bulb is mobilized dorsally and unilaterally, sacrificing the artery with the weaker Doppler signal to preserve the best contralateral artery. Occasionally, both arteries can be preserved. Removal of all fibrosis and anastomosis is performed as described in the traditional transecting technique. ResultsA total of 60 patients were included, with a mean age of 37years (IQR: 22-48). The median time from trauma to urethral reconstruction was 16weeks, and the mean stenosis length was 2.5cm (IQR: 2-3). The left bulbar artery was preserved in 27cases, the right bulbar artery in 8, and both in 24. There were postoperative complications in 14cases (23%), but only one of them was Clavien ≥III. With a mean follow-up of 56months (IQR: 12-87), only one patient failed due to stenosis (98% success). ConclusionPreservation of antegrade arterial flow to the corpus spongiosum during PFUI reconstruction is feasible and safe. Although slightly more elaborate, this technique could reduce the risk of ischemic failure of reconstruction.

Outcomes of bulbar artery sparing during anastomotic urethroplasty for pelvic fracture urethral injury

ObjectiveTo the present long-term outcomes of the vascular-sparing approach during reconstruction of pelvic fracture urethral injuries (PFUI) described by Gomez et al. Material and methodsAnastomotic reconstruction of PFUI is performed without transecting the bulb of the spongiosum, to preserve the antegrade flow of the bulbar arteries. After exposure of the urethra, the bulbar arteries are located using a Doppler stethoscope. The bulb is mobilized dorsally and unilaterally, sacrificing the artery with the weaker Doppler signal to preserve the best contralateral artery. Occasionally, both arteries can be preserved. Removal of all fibrosis and anastomosis is performed as described in the traditional transecting technique. ResultsA total of 60 patients were included, with a mean age of 37 years (IQR 22-48). The median time from trauma to urethral reconstruction was 16 weeks, and the mean stenosis length was 2.5 cm (IQR 2-3). The left bulbar artery was preserved in 27 cases, the right bulbar artery in 8, and both in 24. There were postoperative complications in 14 cases (23%), but only one of them was Clavien ≥ III. With a mean follow-up of 56 months (IQR 12-87), only one patient failed due to stenosis (98% success). ConclusionPreservation of antegrade arterial flow to the corpus spongiosum during PFUI reconstruction is feasible and safe. Although slightly more elaborate, this technique could reduce the risk of ischemic failure of reconstruction.

A new hybrid robotic surgery by minimally invasive laparoscopic and robotic (MILAR) system using da Vinci single-port (SP) in distal gastrectomy for gastric cancer.

The da Vinci SP (SP) has only 1 robotic arm, containing 4 channels. It provides a wide space for assistant surgeons using laparoscopic forceps. We performed a new type of minimally invasive surgery using laparoscopy and a robot (MILAR) utilizing the SP in distal gastrectomy for gastric cancer. An incision at the umbilicus was made for the SP, and 2 ports were inserted from the right abdomen for laparoscopic surgery. In the above view, where surgeons look down at the surgical field, the scope was inserted from the channel at 12 o'clock, and the round tooth retractor was inserted from 6 o'clock. In the below view, where surgeons look up at the surgical field, the scope and retractor were inserted from opposite directions. The robotic operator uses 3 forceps and a scope. The laparoscopic operator uses 2 forceps. On the greater curvature side, the left or right epiploic artery pedicles was retracted by the robot operator under the below view. The suprapancreatic area was dissected with the pedicle of the left gastric artery retracted by the laparoscopic operator under the above view. By setting the scope and the retractor in a diagonal direction of 12-6 o'clock, robotic surgeons have a wide space bilaterally for using forceps for nodal dissection under the co-axial setting. Laparoscopic surgeons can use this space easily. Gastrectomy by MILAR using SP could provide quality surgery within a short operative time.

Side branch interventions late after MFM implantation

Abstract Background MFM prostheses were developed for the endovascular treatment of aortic and great vessel aneurysms. Implanted between two healthy segments of arterial vessel, they centralize blood flow and trough Bernoulli's principle. Thereby hemodynamic stress into the aneurismal sac is reduced. Meantime, the porosity along entire prosthesis length preserves all side branches (SB) patent. Results from real clinical practice confirm the high success rate (nearly 100%) of MFM prostheses regarding side branch preservation at one-year follow-up [1,2]. However, late after MFM implantation SB intervention may be required (due to atherosclerosis or others). The access to SB covered by MFM is challenging due to: impossible ostial engagement of the guiding catheter, distance between target vessel ostium and prosthesis, the necessary for all devices used to cross MFM mesh. Materials and methods For the period 2016-2020 we implanted a specific type of MFM prosthesis in order to treat aneurysm of the abdominal aorta in 34 patients. A total of 129 side branches was covered. Within a mean follow-up period of 5 years, 129 side branches were preserved and 7 affected by stenosis or occlusion (two of them asymptomatic). Intervention on the branch covered by the MFM prosthesis was necessary in 5 patients (two males, two females; mean age 68 years). One patient had endovascular celiac trunk stenosis, one patient had both celiac trunk and superior mesenteric artery stenoses, one patient had superior mesenteric artery stenosis, and one patient had left renal artery stenosis. All lesions were intervened through radial or brachial approach. Guiding 6F Judkins right catheter was navigated close to the target branch ostium and the MFM mesh was crossed with .014¨ coronary wire. When guidewire was placed into target vessel small low-profile, coronary balloon is advanced across the mesh of the multilayer stent. Anchor balloon technique was used in order for guiding catheter to cross the mesh gradually. Once the guiding catheter is engaged, the lesion was treated with balloon pre-dilation and implantation of a low-profile, high radial force stent. Results All 4 patients and 5 affected vessels were successfully endovascularly intervened. We did not observe any procedure complications. Immediate resolution of clinical symptoms was achieved. At 1 year follow-up with CT scan all treated branch arteries were patent. Conclusions In patients with previously implanted multilayer stents, the mesh can be crossed safely with readily available coronary devices together with the balloon anchor technique. As such, endovascular treatment of stent-covered visceral and renal arteries is possible without open surgery.Catheter stabilizationSMA successfully treated

A Case Report on Paradoxical Emboli

Venous Thromboembolism (VTE) is a major public health concern, affecting approximately 900,000 people annually in the United States. In rare cases, a Patent Foramen Ovale (PFO) may allow a venous thrombus to cross into the arterial circulation, causing a paradoxical embolism. This case report presents a 46-year-old male who developed left renal artery stenosis after a paradoxical embolism, likely triggered by a prolonged flight and binge alcohol consumption. The patient was found to have a moderate-sized PFO and renal infarction, confirmed by imaging studies. Despite initial anticoagulation therapy and a planned stenting procedure, intraoperative findings revealed only mild stenosis, leading to cancellation of the stent placement. The patient ultimately underwent PFO closure with an Amplatzer Talisman device. This case underscores the diagnostic challenges in managing paradoxical embolism and the need for individualized treatment, particularly concerning anticoagulation duration, the decision for PFO closure, and post-procedural antithrombotic therapy. Further research is required to establish optimal management strategies for cryptogenic embolic events.