Superior Mesenteric Artery Syndrome Research Articles

BN SO03 - "Stuck in the Middle: A Case of SMA Syndrome on a 68/Male"

Abstract Background A case is a 68-year-old male presenting with 1 year history of bilious vomiting, abdominal pain, weight loss and early satiety. Intraoperatively, the stomach, 1st and 2nd part of the duodenum were dilated, while the 3rd part of the duodenum was identified to be compressed by the superior mesenteric artery, distal duodenum and was noted to be collapsed, and a side-side duodenojejunostomy was performed. Post-operatively, the patient’s course in the ward was unremarkable. On 1-month follow up, the patient wasclinically well with no recurrence of symptoms, able to tolerate regular solid full diet and has gained weight since the procedure. Method N/A CASE REPORT Results N/A CASE REPORT Conclusion N/A CASE REPORT

Asymmetry of the Frontal Aslant Tract and Development of Supplementary Motor Area Syndrome

Background/Objectives: The purpose of this study was to investigate preoperative interhemispheric differences of the FAT in relation to the onset of postoperative SMA syndrome. Methods: This was a single-center retrospective analysis of patients who underwent surgical resection of diffuse gliomas involving the SMA between 2018 and 2022. Inclusion criteria were availability of preoperative and postoperative Magnetic Resonance Imaging, no previous surgery, and no neurological deficits at presentation. Diffusion-weighted data were processed by spherical deconvolution (SD) and diffusion tensor imaging tractography algorithms, and TrackVis was used to dissect the FAT of both hemispheres. The FAT data were analyzed for correlation with postoperative SMA syndrome onset. Results: N = 25 cases were included in the study, among which n = 23 had preoperative bilaterally identifiable FAT by SD. N = 12 developed an SMA syndrome, 6 demonstrated a motor-only syndrome, 4 had a verbal-only syndrome, and 2 had mixed verbal and motor features. The SMA syndrome incidence was significantly more frequent in lower-grade gliomas (p = 0.005). On the tumor side, the FAT identified by SD was smaller than the contralateral (mean volume 6.53 cm3 and 13.33 cm3, respectively, p < 0.001). In the 6 cases that developed a verbal SMA syndrome, a normalized FAT volume asymmetry (FAT-VA) demonstrated an asymmetry shifted towards the non-dominant side (mean FAT-VA = −0.68), while the cases with no postoperative verbal impairment had opposite asymmetry towards the dominant side (mean FAT-VA = 0.42, p = 0.010). Conclusions: Preoperative interhemispheric FAT volume asymmetry estimated according to functional dominance can predict postoperative onset of verbal SMA syndrome, with proportionally smaller FAT on the affected dominant hemisphere.

Recurrent Gastrointestinal Symptoms and Diagnosis of Superior Mesenteric Artery Syndrome

Recurrent Gastrointestinal Symptoms and Diagnosis of Superior Mesenteric Artery Syndrome

Superior Mesenteric Artery Syndrome in Patients with Snake Bites

Superior Mesenteric Artery Syndrome in Patients with Snake Bites

Association of Superior Mesenteric Artery Syndrome and Lumbar Scoliosis

Association of Superior Mesenteric Artery Syndrome and Lumbar Scoliosis

S3901 A Rare Case of Median Arcuate Ligament Syndrome Leading to Superior Mesenteric Artery Syndrome

S3901 A Rare Case of Median Arcuate Ligament Syndrome Leading to Superior Mesenteric Artery Syndrome

S2680 Acute Recurrent Pancreatitis Secondary to Superior Mesenteric Artery Syndrome

S2680 Acute Recurrent Pancreatitis Secondary to Superior Mesenteric Artery Syndrome

S4795 A Case of Partial Duodenal Obstruction Secondary to Superior Mesenteric Artery Syndrome

S4795 A Case of Partial Duodenal Obstruction Secondary to Superior Mesenteric Artery Syndrome

Assessment of aortomesenteric distance and mesenteric and retroperitoneal adipose tissue thickness in genetic forms of lipodystrophy.

Lipodystrophy is a rare disease characterized by the loss of adipose tissue. Visceral adipose tissue loss in certain forms of lipodystrophy may affect the amount of mesenteric fat. We studied visceral adipose tissue by measuring the thickness of mesenteric and retroperitoneal adipose tissue and the aortomesenteric (AOM) distance in patients with genetic forms of lipodystrophy (n = 48; 7 males; 41 females; mean age 39.1 ± 11.9 years; 19 with congenital generalized lipodystrophy [CGL], and 29 with familial partial lipodystrophy [FPLD]). An age- and gender-matched control group with a ratio of 1:2 was generated. Patients with CGL had severely depleted mesenteric adipose tissue (2.0 [IQR: 1.5-3.5] mm vs. 18.8 [IQR: 4.4-42.2] mm in FPLD, P < .001; 30.3 [IQR: 13.9-46.6] mm in controls, P < .001) and retroperitoneal adipose tissue (1.3 [IQR: 0.0-5.3] mm vs. 33.7 [IQR: 21.6-42.1] mm in FPLD, P < .001; 29.7 [IQR: 23.1-36.7] mm in controls, P < .001). The AOM distance was shorter in patients with CGL (8.1 [IQR: 6.0-10.8] mm) compared to patients with FPLD (vs. 13.0 [IQR: 8.8-18.1] mm; P = .023) and controls (vs. 11.3 [IQR: 8.4-15.5] mm, P = .016). Leptin levels were positively correlated with AOM distance in lipodystrophy (r = .513, P < .001). Multivariate linear regression analysis identified body mass index as a significant predictor of AOM distance (data controlled for age and sex; beta = 0.537, 95% CI: 0.277-0.798, P < .001). Twelve of 19 patients (63%) with CGL had an AOM distance of < 10mm, a risk factor that may predispose patients to developing superior mesenteric artery syndrome. CGL is associated with a severe loss of mesenteric adipose tissue, which leads to a narrowing of the space between the superior mesenteric artery and the aorta.

S4869 A Delayed Presentation of Superior Mesenteric Artery Syndrome Treated With Robotic-Assisted Strong Procedure

S4869 A Delayed Presentation of Superior Mesenteric Artery Syndrome Treated With Robotic-Assisted Strong Procedure

Unusual neonatal case of superior mesenteric artery syndrome with MeckelÓ?s diverticulum and literature review

Unusual neonatal case of superior mesenteric artery syndrome with MeckelÓ?s diverticulum and literature review

Laparoscopic Surgery for Superior Mesenteric Artery Syndrome.

Superior mesenteric artery syndrome (SMAS) is a rare condition, for which laparoscopic surgery was successfully performed safely and with long-term efficacy. This single center retrospective clinical study comprised 66 patients with SMAS, surgically treated between January 2010 and January 2020, who were allocated to three different surgical groups according to their medical history and symptoms (Laparoscopic duodenojejunostomy, n = 35; Gastrojejunostomy, n = 16; Duodenojejunostomy plus gastrojejunostomy, n = 15). Patient demographics, surgical data and postoperative outcomes were retrieved from the medical records. All operations were successfully completed laparoscopically, and with a median follow-up of 65 months, the overall symptom score was significantly reduced from 32 to 8 (p < 0.0001) and the BMI was increased from 17.2 kg/m2 to 21.8 kg/m2 (p < 0.0001). When conservative measures failed in the treatment of SMAS, laparoscopic surgery proved to be a safe and effective method. The specific surgical technique was selected according to the history and symptoms of each individual patient. To our knowledge, this study represents the largest number of laparoscopic procedures at a single center for the treatment of superior mesenteric artery syndrome.

Superior mesenteric artery syndrome managed laparoscopically: a case report

BackgroundSuperior mesenteric artery syndrome is a rare condition that has only around 400 reported cases so far. Typically, the superior mesenteric artery branches off the abdominal aorta at 45° to create an aortomesenteric distance of 10–28 mm, with the duodenum passing through. However, if this aortomesenteric angle reduces to less than 25°, the third portion of the duodenum becomes compressed between the SMA and aorta, causing mechanical obstruction.Case presentationThis case report aims to demonstrate the diagnostic difficulties and the laparoscopic management of a 52-year-old Indian male presenting with abdominal pain and vomiting, with associated weight loss. Imaging was further suggestive of high intestinal obstruction, and he was later found to have superior mesenteric artery syndrome.ConclusionTaking into account a significant reduction in morbidity, we propose laparoscopic duodenojejunostomy to be the new procedure of choice for superior mesenteric artery syndrome.

Superior mesenteric artery syndrome following spine surgery in idiopathic adolescent scoliosis: a systematic review

Superior mesenteric artery syndrome (SMAS) is a rare and unpredictable complication after correction spine surgery for adolescent idiopathic scoliosis (AIS). The management of this condition is poorly investigated, with controversial outcomes. This investigation systematically reviewed current evidence on pathogenesis, risk factors, management, and outcomes of SMAS following correction spine surgery for AIS. The present systematic review was conducted according to the 2020 PRISMA statement. All the included investigations reported SMAS presentation following scoliosis correction surgery in AIS. 29 articles with 61 eligible patients were included in this review. The mean age of the patients was 15.8 ± 7.2 years. The mean weight was 45.3 ± 8.0 kg, the mean height 159.6 ± 13.6 cm, and the mean BMI 16.5 ± 2.9 kg/m2. The mean duration of the treatment for SMAS was 21.6 ± 10.3 days. The mean interval between spine surgery and symptoms of SAMS was 69 days, with high between-studies variability (3 days to 4 years). Prompt identification of risk factors and an early diagnosis are necessary to manage SMAS and reduce the risk of complications. Additional investigations are required to establish risk factors and diagnostic criteria.Level of evidence Level IV, systematic review.

Superior Mesenteric Artery Syndrome (Wilkie?s Syndrome): Acute Severe Presentation in a 12 - Year - Old Girl and Role of Early Diagnosis

Superior Mesenteric Artery Syndrome (Wilkie?s Syndrome): Acute Severe Presentation in a 12 - Year - Old Girl and Role of Early Diagnosis

Gastric perforation as a complication of Wilkie's syndrome.

Wilkie's syndrome, also known as Superior mesenteric artery (SMA) syndrome, is characterized by intestinal obstruction due to aortomesenteric duodenal compression caused by the reduction of the normal angle between (38-65º) to <25º or to a distance <8mm. The clinical presentation is usually non-specific (dyspepsia, postprandial abdominal pain) but sometimes presented as an acute intestinal obstruction syndrome (nausea, vomiting, gastric dilatation and abdominal distention). In this study, we report the case of a 22-year-old patient with a BMI of 16.5 who presented to the emergency room with acute intestinal obstruction caused by SAMS. He presented with massive gastric dilation that caused ischaemic necrosis of the gastric mucosa with subsequent perforation. It should be noted that only one case associated with Wilkie syndrome has been described in the literature. Therefore, given the rare incidence of complications associated with this syndrome and the favourable prognosis with conservative management, surgery is usually the last line of treatment. However, we must not forget that when necrosis appears, it is often extensive and requires urgent surgical treatment in most cases.

Association between underweight status or low body mass index and the risk of developing superior mesenteric artery syndrome following scoliosis corrective surgery in pediatric patients: a review of the literature

Superior mesenteric artery (SMA) syndrome is the compression of the third portion of the duodenum between the abdominal aorta and the superior mesenteric artery. Although multifactorial, the most frequent cause of SMA syndrome is significant weight loss and cachexia often induced by catabolic stress. SMA syndrome resulting from scoliosis surgery is caused by a reduction of the aortomesenteric angle and distance. Risk factors include rapid weight loss, malnutrition, and a rapid reduction in the mesenteric fat pad and are the most common causes of a decrease in the aortomesenteric angle and distance. Surgically lengthening the vertebral column can also lead to a reduction of the aortomesenteric distance, therefore, has been identified as a risk factor unique to spinal surgery. Despite a reported decline in SMA syndrome cases due to improved surgical techniques, duodenal compression is still a risk and remains a life-threatening complication of scoliosis surgery. This article is a cumulative review of the evidence of being underweight or having a low body mass index as risk factors for developing SMA syndrome following surgical scoliosis instrumentation and correction.

Diagnostics and surgical management children with superior mesenteric artery syndrome

BACKGROUND: Superior mesenteric artery syndrome causes chronic duodenal obstruction. Studies on this disease are limited; therefore, several difficulties in the diagnosis and treatment of such patients remain. AIM: This study aimed to present the experience of treating children with superior mesenteric artery syndrome. MATERIALS AND METHODS: The treatment results of 45 patients with superior mesenteric artery syndrome was retrospectively studied. The children complained of abdominal pain, nausea, occasional vomiting, belching, bloating, and constipation. The diagnosis was confirmed during a comprehensive examination, including ultrasound, esophagogastroduodenoscopy, X-ray contrast examination, computed tomography, and relaxation duodenography. Conservative therapy was performed in 38 (84,4%) children, and 21 (55,3%) children showed satisfactory results. In case of ineffectiveness of conservative measures (17 cases) or in a decompensated state (7 cases), indications for surgical treatment were provided. Furthermore, 24 (53,3%) children underwent surgery. Duodenal drainage surgeries were performed in 20 (83,3%) patients with subcompensation of duodenostasis. Of these patients, 10 (41,7%) underwent lower duodenojejunostomy with a switched-off Roux-en-Y loop (Gregory–Smirnov’s operation) and the other 10 (41,7%) underwent anterior mesenteric duodenojejunostomy (Robinson’s operation). Laparotomic access was used in 14 cases (70,0%) and laparoscopic in 6 (30,0%) cases. Owing to decompensation of duodenostasis, the duodenum was excluded from passage by economical resection of the gastric outlet with gastrojejunostomy on a short loop with additional formation of a lower duodenojejunostomy according to Roux in 4 (16,7%) cases. Laparotomic access was used in all cases. RESULTS: No intraoperative complications were noted. In the early postoperative period, two children developed anastomositis after Robinson’s operation and two patients after Gregory–Smirnov’s operation, which was treated with conservative measures. In long-term followup (up to 15 years), a satisfactory result was achieved in 87.5% of cases. CONCLUSIONS: Superior mesenteric artery syndrome is a relatively rare cause of chronic duodenal obstruction in children. When selecting patients for surgical treatment, other diseases should be excluded. Surgical correction includes various options for duodenal drainage operations that can be successfully performed using laparoscopic access. In case of decompensation of duodenostasis, it may be crucial to exclude the duodenum from the passage.

Cannabinoid hyperemesis syndrome co-occurring with superior mesenteric artery syndrome in adolescents.

Both superior mesenteric artery syndrome (SMAS) and cannabinoid hyperemesis syndrome (CHS) may present with abdominal pain, nausea, and emesis - making them difficult to differentiate or determine when they co-occur in adolescents who regularly use cannabis. Here, we present nine cases of CHS co-occurring with SMAS and characterize their clinical courses. Patients admitted at Children's Hospital of Colorado between January 1, 2015, and March 23, 2023, who had both cannabis use (F12.1-F12.99) and chronic vascular disorders of the intestine (K55.1) on their problem lists were identified from the electronic medical recordusing ICD 10 codes. Nine met criteria for SMAS and chronic cannabis use. Six of nine patients were female. The most common presenting symptoms were nausea (9), vomiting (9), and weight loss (9). Four patients received cannabis cessation support. Patients lost a mean of 6.0 kg, had an average body mass index (BMI) of 15.61percentile(17.7 kg/m2) and BMI Z-scores of -1.5. Symptoms were present for a mean of 19.6 weeks before diagnosis. Adolescents who experience nausea, vomiting, abdominal pain, and weight loss in association with chronic cannabis use and/or SMAS can present with confusing and overlapping symptoms. Our cohort was described as having CHS with co-occurring SMAS on imaging. Although the etiology of weight loss cannot be definitively ascertained, we postulate that the recurring emetic attacks from CHS led to weight loss resulting in SMAS. Improvement in diagnostic criteria for this population as well as cannabis cessation programming may aid in deceasing morbidity from these co-occurring conditions.

Unusual neonatal case of superior mesenteric artery syndrome with Meckel's diverticulum and literature review.

Superior mesenteric artery syndrome (SMAS) is a rare cause of duodenal obstruction which is characterized by compression of the duodenum due to narrowing of the space between the superior mesenteric artery and aorta. Incomplete duodenal obstruction due to SMAS in neonates is rarely reported in the literature. In this case, it is a full-term 2-day-old male with the complaint of recurrent vomiting starting soon after birth. The patient was diagnosed with SMAS and duodenoduodenostomy was performed. Accompanying Meckel's diverticulum was excised.