Spontaneous Retroperitoneal Hematoma Research Articles

Spontaneous retroperitoneal haemorrhage after pulmonary endarterectomy surgery

Spontaneous retroperitoneal hematoma (SRH) is a rare complication of anticoagulation therapy. Presentation may vary from limb paresis to hypovolemic shock due to blood loss. The optimal treatment is controversial. It can be managed conservatively or surgically. We report a case of a 73-year-old man presenting with progressively worsening abdominal pain and severe pain radiating to his left lower limb twenty-five days after his pulmonary endarterectomy (PEA) surgery. He was on anticoagulation per our institutional protocol for PEA patients. Investigations revealed a large, spontaneously occurring iliopsoas hematoma. Our patient was treated conservatively, and the SRH stabilised.

Natural history of renal angiomyolipoma in a high-volume center: our experience during more than 15years of follow up.

To describe the natural history of AML, the clinical results and the need for treatment during long-term follow-up of renal AML. Retrospective study of patients diagnosed with AML by computed tomography or nuclear magnetic resonance between 2001 and 2019, with at least two follow-up images. Clinical and imaging variables, need for intervention, complications and follow-up time were recorded. Statistical analysis was performed using SPSS 22.0. 111 patients and 145 AML were included. The median follow-up was 6.17years (range 0.7-18.1, IQR 11.8-12.2). The median tumor size at diagnosis was 13mm (IQR 7.5-30), with 24 (16.4%) being ≥ 4cm. Most presented as an incidental finding (85.5%); in 3 (2.1%) cases, the presentation was as a spontaneous retroperitoneal hematoma. The main indication for intervention was size ≥ 4cm in 50%. Eighteen (12%) patients received a first intervention, being urgent in 3. Embolization was performed in 15 cases and partial nephrectomy in 3. The need for reintervention was recorded in five: two underwent partial nephrectomy and two total nephrectomy; one patient required a new urgent embolization. Of the non-operated patients, 43% decreased in size or did not change, while 57% increased, with the median annual growth being 0.13mm (IQR -0.11 to 0.73). There were no differences in the median growth in tumors measuring ≥ 4cm (0.16mm) at diagnosis vs. < 4cm (0.13mm) (p = 0.9). The findings of this study suggest that AML typically demonstrate a slow-progressing clinical course during long-term follow-up. Moreover, our observations, which cast doubt on tumor size as a reliable predictor of adverse clinical outcomes, advocate for a less intensive monitoring strategy in both monitoring frequency and choice of imaging modality.

Case of spontaneous hematoma of the renal compartment resulting in hemorrhagic shock: A unique presentation in urology

Hemorrhagic shock from spontaneous retroperitoneal hematoma of renal origin is a rare condition, and there are few publications on this subject. We present the case of a 60-year-old obese patient who experienced hemorrhagic shock from a right renal subcapsular hematoma that had ruptured into the retroperitoneum after initiation of anticoagulant treatment for acute pulmonary edema in the context of recurrent paroxysmal atrial fibrillation. The CT scan revealed a retroperitoneal hematoma and a possible hemorrhagic cyst in the right kidney. An emergency nephrectomy was necessary for hemostasis. The histology of the nephrectomy specimen confirmed the diagnosis of renal cell carcinoma.

Percutaneous thrombin injection under contrast-enhanced ultrasound guidance to control active extravasation not associated with pseudoaneurysm.

The technique of percutaneous thrombin injection (PTI) under contrast-enhanced ultrasound (CEUS) guidance for control of acute hemorrhage-active extravasation not associated with pseudoaneurysm is demonstrated in three cases: 1) Massive spontaneous retroperitoneal hematoma in a patient with multiple comorbidities. Contrast-enhanced computed tomography (CT) showed extensive active extravasation, which was only partially controlled by transarterial embolization. CEUS was performed in the angiography suite. Contrary to unenhanced US and colour Doppler US (CDUS), CEUS confirmed persistent extravasation; CEUS-guided PTI was performed immediately thereafter. 2) Large rectus sheath hematoma in a patient on anticoagulant therapy. Contrast-enhanced CT and unenhanced US/CD could not definitely diagnose extravasation. CEUS clearly showed extravasation and was used for guidance of PTI. 3) Chest wall hematoma complicating central venous catheter placement in a patient with coronavirus on anticoagulant therapy. CDUS was inconclusive. CEUS was performed at the bedside, clearly showed active extravasation, and was used for guidance of PTI. In all three cases, post-PTI CEUS confirmed the absence of residual enhancement of the hematomas, and the hemodynamic status of the patients improved. PTI appears to be effective in selected cases of hematomas associated with active extravasation. In this context, CEUS may be the most suitable modality for guidance and for an immediate evaluation of the treatment effect.

Spontaneous retroperitoneal hematoma with duodenal obstruction with diagnostic use of endoscopic ultrasound: A case series and literature review

Spontaneous retroperitoneal hematoma is rare and can cause duodenal obstruction. We report four cases of spontaneous retroperitoneal hematoma with duodenal obstruction, wherein endoscopic ultrasound was useful for diagnosis. The patients complained of vomiting with stable vital signs. Computed tomography, esophagogastroduodenoscopy, and endoscopic ultrasound findings were similar in all cases. Contrast-enhanced computed tomography revealed a low-density mass around the 2nd to 3rd part of the duodenum. Esophagogastroduodenoscopy showed an edematous, reddish, but non-neoplastic duodenal mucosa with stenosis of the lumen. Endoscopic ultrasound revealed a low-echoic mass around the duodenum and high-echoic floating matter suggesting debris and anechoic areas that indicated a liquid component. These findings suggested hematomas or abscesses. Although pseudoaneurysm of the pancreaticoduodenal artery was suspected in Case 3, we chose conservative treatment because the aneurysm was small. In Case 4, median arcuate ligament syndrome was suspected on angiography. No aneurysms or arteriovenous malformations were found; thus, endovascular embolization was not performed. The patients were treated conservatively and discharged within 3–5 weeks. English literature queries on spontaneous retroperitoneal hematoma with duodenal obstruction in MEDLINE revealed 21 cases in 18 studies. The clinical features of these patients and the present four cases have been discussed.

Spontaneous retroperitoneal hematoma: a case report

BackgroundSpontaneous retroperitoneal hematoma is defined as bleeding in the retroperitoneal space without any triggers such as trauma, invasive procedures, and abdominal aortic aneurysm.Case presentationA 48-year-old Japanese man who experienced sudden abdominal pain, severe hypotension, and decreased hemoglobin was diagnosed with spontaneous retroperitoneal hematoma. Contrast-enhanced computed tomography revealed massive left retroperitoneal hematoma; however, neither extravasation nor causative aneurysm was noted. Through conservative management with close monitoring, he was treated and discharged on the tenth hospital day without any morbidity.ConclusionsSpontaneous retroperitoneal hematoma treatment comprises conservative management, transcatheter arterial embolization, and surgical intervention. The mortality rate of spontaneous retroperitoneal hematoma is so high that the optimal treatment timing needs to be carefully judged on the basis of detailed evaluation, and management algorithm with clear criteria.

Spontaneous retroperitoneal hematoma in patients with severe SARS-CoV-2 pneumonia. A systematic review

Angiología es una revista científica bimensual editada desde 1949. Está dedicada al estudio de las enfermedades vasculares, incluyendo todos los aspectos de la medicina vascular, el diagnóstico no invasivo, el tratamiento quirúrgico tradicional arterial y venoso, así como el mínimamente invasivo y/o endovascular.

Retroperitoneal hematoma: An unexpected complication of anticoagulant therapy in COVID-19 patients

Introduction. Coronavirus disease 2019 (COVID-19) is associated with high inflammatory response, hemostatic disturbances, and high thrombotic risk. Despite thromboprophylaxis, a high incidence of thromboembolic events has been reported with a consequent increase in anticoagulant therapy from standard to intermediate or even therapeutic doses. However, published evidence on the incidence and outcome of the hemorrhagic complications of applied therapy is still limited. Outlines of cases. We present two female COVID-19 patients, treated with anticoagulant therapy who suffered from major spontaneous bleeding and retroperitoneal hematoma. The first, a 64-year-old patient, treated with non-invasive ventilation protocol in the Intensive Care Unit due to respiratory failure received a therapeutic dose of anticoagulant therapy adjusted to the anti-Xa assay. The cumulative dose of nadroparin was 150 IU/kg body weight/day. The second, a 60-year-old patient with the moderate clinical presentation on low flow oxygen support was treated with therapeutic doses of anticoagulant therapy calculated according to the body weight. Emergency open surgery was performed due to massive bleeding. No active surgical bleeding was detected, and retroperitoneal hematomas were assumed to be complications of the applied anticoagulant therapy. Both patients were discharged and fully recovered. Conclusion. Although rare, severe hemorrhage requires attention when considering anticoagulant therapy in COVID-19. Uncommon sites of spontaneous bleeding suggest additional evaluation on a case-by-case basis, given that a diagnosis is often delayed due to a lack of specific presenting symptoms. Further studies are needed to verify the risk-benefit ratio of different regiments of anticoagulant therapy in patients with COVID-19.

Spontaneous Retroperitoneal Hematoma: A Deadly Complication for Patients Awaiting Liver Transplant.

Patients with end-stage liver disease (ESLD) are at increased risk for hemorrhage and spontaneous retroperitoneal hematoma (sRPH) and also carry a high mortality rate. We sought to review the natural history of sRPH in patients with ESLDat a single center. All patients admitted to a single transplantation intensive care unit (TICU) at Froedtert and the Medical College of Wisconsin Transplant Center between June 2016 and August 2018 were retrospectively reviewed. Six ESLD patients with sRPH were studied. Clinical outcome measures were liver disease severity, sRPH treatment, and patient survival. Six patients were included, four male and two female patients, with a median age of 56.5 years (range 30-67 years). All had alcohol-induced liver cirrhosis. The median Model for End-Stage Liver Disease (MELD) score at the time of sRPH diagnosis was 40 (range 30-43). The most commonly identified source of bleeding was from lumbar arteries. One patient had recurrent bleeding after embolization and underwent repeat embolization. Five patients died. The median time to death from the diagnosis of sRPH was 7.2 days (range 2-12 days). The patient who survived following embolization had the lowest MELD score. Critically ill cirrhotic patients with sRPH have a significant mortality rate. Embolization is successful, albeit seldom. This is the largest retrospective series of sRPH in cirrhotic patients in theliterature.

A Case of Spontaneous Ovarian Artery Haemorrhage in a Post-Menopausal Woman with Congenital Solitary Kidney.

Ovarian arterial haemorrhage (OAH), a rare cause of spontaneous retroperitoneal hematoma (SRH), usually occurs in women during pregnancy or in those with a history of repeated pregnancies. The clinical manifestations of OAH are non-specific; hence, proper and timely imaging examinations are extremely important. Contrast Enhanced CT scan is the first choice for clarifying the cause of haemorrhage in patients with SRH. Trans-arterial embolisation (TAE) has become the most common treatment option for OAH. Here, we report a case of SRH in the left ovarian artery region in a patient with a congenital solitary kidney. The patient was initially misdiagnosed as left kidney haemorrhage which was successfully embolised with tissue glue. There are no previous reports of OAH in patients with a congenital solitary kidney. Key Words: Ovarian artery, Spontaneous retroperitoneal hematoma, Congenital solitary kidney, Trans-arterial embolization.

Spontaneous Left External Iliac Vein Rupture.

Spontaneous rupture of the Iliac Vein is very rare in practice. In over 90% of cases, the venous lesion is located on the left side. The exact etiology of this condition is unknown. Spontaneous injury of the iliac vein is thought to be favored by intense exercise, constipation, cough, labor, May-Thurner syndrome or pre-existing inflammatory changes in the venous wall are also implicated. We present the case of an 83-year-old woman who is brought to the Emergency Department for abdominal pain located in the left flank and in the left iliac fossa, which appeared after a medium physical exertion. After an emergency contrast-enhanced abdominal CT scan, the diagnosis of spontaneous rupture of the left external iliac vein is established. Surgery is performed with extreme urgency by retroperitoneal approach and due to the very precarious condition of the patient, venous ligation is done, wishing to perform a Palma-Dale venous bypass at a later time. Although a rare cause of spontaneous retroperitoneal hematoma, a non-traumatic rupture of the common or external iliac vein should be considered in patients in shock with massive retroperitoneal bleeding, accompanied by a high mortality rate.

COVID-19 enfeksiyonu geçiren hastada böbrek pelvis rüpürünün eşlik ettiği spontan ciddi retroperitoneal kanama: Olgu sunum

Spontaneous rupture of the renal pelvis is a rarely encountered urological event that causes extravasation of urine. It often occurs as a result of increased intrapelvic pressure secondary to obstructions developed in the urinary system. Similarly spontaneous retroperitoneal hematoma is retroperitoneal hemorrhage that occurs without trauma or an underlying pathology. In this study, we present a case of spontaneous rupture of the renal pelvis that developed secondary to compression of the hematoma that occurred spontaneously in the retroperitoneum in a 63-year-old female patient who received anticoagulant therapy with the diagnosis of Covid-19 infection. In the light of this case, we would like to emphasize that widespread endothelial cell damage associated with Covid-19 infection may cause spontaneous severe retroperitenal bleeding and accompanying renal pelvis rupture. In which both the rarely encountered spontaneous rupture of the renal pelvis and spontaneous retroperitoneal bleeding are seen simultaneously in the same patient, is reporting for the first time in the literature. Keywords: anticoagulant treatment, COVID-19, renal pelvis rupture, retroperitoneal hematoma, urinary obstruction

Spontaneous Retroperitoneal Hematoma Treated with Percutaneous Transarterial Embolization in COVID-19 Era: Diagnostic Findings and Procedural Outcome.

(1) Background: Spontaneous retroperitoneal hematomas are a relatively common occurrence in hospitalized patients with COVID-19 related pneumonia, and endovascular treatment of trans-arterial embolization (TAE) may be a life-saving procedure after failure of medical and supportive therapy. The aim of our study was to evaluate spontaneous retroperitoneal hematomas in the COVID-19 era, focusing on their imaging features at CTA and DSA and on the safety, as well as technical and clinical success, of TAE, comparing patients affected by COVID-19 and non-COVID-19 patients. (2) Materials and Methods: We retrospectively enrolled 24 patients with spontaneous retroperitoneal hematoma who underwent TAE; of these, 10 were hospitalized for COVID-19-related pneumonia, while the other 14 were without COVID-19 infection. We evaluated the demographic data, hemoglobin values before and after the procedure, preprocedural aPTT, preprocedural INR, diagnostic and interventional imaging findings, procedural outcome (technical success) and survival periprocedural (clinical success), and major and minor complications. (3) Results: The mean age of the study population was 72.7 ± 11.2 years. CTA revealed signs of active bleeding in 20 patients (83%). DSA showed signs of active bleeding in 20 patients (83%). In four patients (17%), blind embolization was performed. The overall technical success rate was 100%. Clinical success was achieved in 17 patients (71%), while seven patients (29%) rebled within 96 h, and all of them were retreated. No major periprocedural complication was reported. The comparison between the two groups did not show statistically significant differences for gender, mean age, mean pre- and postprocedural hemoglobin, aPTT and INR, mean hematoma volume (cm3), or mean delay between CT and DSA. Active bleeding at CTA was detected in 90% of COVID-19 patients and 79% of non-COVID-19 patients (p = 0.61). At DSA, active bleeding was assessed in eight out of 10 (80%) patients in the COVID-19 group and 12 out of 14 (86%) patients in the non-COVID-19 group (p = 1). Technical success was obtained in 100% of patients in both groups. Clinical success rates were 70% for COVID-19 group and 71% for the non-COVID-19 group. We found no statistical significance between the clinical success rates of retroperitoneal spontaneous hematoma embolization in patients with or without SARS-CoV-2 infection. (4) Conclusions: We suggest that, similar to what has been reported in other studies in non-COVID-19 patients, TAE should be considered an important safe, effective, and potentially life-saving option for the management and the treatment of patients affected by COVID-19 who present with spontaneous retroperitoneal hematoma and who could not benefit from conservative treatment.

Outcomes of Open Surgery for Retroperitoneal Hematoma in Covid-19 Patients: Experience from a Single Centre.

Background: Spontaneous retroperitoneal hematoma is a severe and potentially fatal complication that appears in the course of anticoagulation therapy. Therapeutic doses of low molecular weight heparin (LMWH) are used for the prevention of thrombosis in patients seriously ill with Covid-19. Methods: We describe 27 (0.14%) patients with retroperitoneal hematomas who required emergency surgery out of 19108 patients with Covid-19 who were hospitalized in Batajnica COVID Hospital between March 2021 and March 2022. All the patients were on therapeutic doses of LMWH. The existence of retroperitoneal hematoma was confirmed by abdominal ultrasound and computed tomography scans. Results: Open surgery was performed on 27 patients with spontaneous retroperitoneal hematomas (12 female and 15 male). The mean age of the study population was 71.6+-11.9 years. D-dimer was significantly elevated two days before the surgery in comparison with the values on the day of surgery (p=0.011). Six patients (22.23%) survived, while 21 (77.77%) patients died. Conclusion: Bleeding in Covid-19 patients treated by LMWH is associated with an increased risk of developing retroperitoneal hematoma. Open surgery for retroperitoneal hematoma in Covid-19 patients on anticoagulation therapy is a procedure associated with a high rate of mortality.

Spontaneous Retroperitoneal Hematoma in COVID-19 Severe Pneumonia–Dual-phase Multidetector Computed Tomography Angiogram and Role of Radiologist

AbstractStudies available in the literature have shown alterations in blood coagulation tests in severe cases of COVID-19 pneumonia, with a significant risk of venous thromboembolism (VTE). Since microvascular thrombosis is a well-known fact in COVID-19 disease, requiring therapeutic anticoagulation, low-molecular weight heparin (LMWH) in prophylactic dose is a part of the clinical management of hospitalized COVID-19 patients. In this scenario, we describe three cases of abdominal spontaneous retroperitoneal hematoma (SRH) in hospitalized reverse transcriptase-polymerase chain reaction (RT-PCR)-confirmed COVID-19 patients.

Large retroperitoneal hematoma in a patient with haemophilia B

A spontaneous retroperitoneal hematoma is very rare and quite a challenging entity, more so when its presentation mimics other more common causes of acute abdomen, as in this interesting case. Here, patient presented with acute abdomen with polyarthralgia with flank ecchymosis (Grey Turner’s sign) with flank mass which lead us in the direction of acute pancreatitis. However, past history of recurrent bleeding episodes and positive family history along with blood investigations revealing an isolated prolongation of activated partial thromboplastin time tickled our brains with the differentials of coagulation disorders. Computed tomography showed large retroperitoneal hematoma. After initial resuscitation in the emergency room he was managed conservatively with fresh frozen plasma, cryoprecipitate and blood transfusions. On detailed evaluation, coagulation workup showed deficient coagulation factor IX levels leading us to the diagnosis of haemophilia B. Now, the patient is doing good on regular follow up.

Abstract No. 53 Initial experience with Venovo venous stents in iliocaval and iliofemoral occlusions

To present early single-center, single-operator experience using the Bard Venovo venous stents in the treatment of patients with chronic iliocaval and iliofemoral venous occlusions and post-thrombotic syndrome A total of 19 patients (9 women) with a mean age of 56.1 years (range 8-80) presented between August 2019 and August 2020 with post-thrombotic syndrome and iliocaval or iliofemoral occlusion. Nine of the 19 patients were evaluated pre-procedurally with Villalta scores with an average of 16.1 (range 13-22) consistent with severe post-thrombotic syndrome. Ten Iliocaval and 9 iliofemoral venous reconstructions were performed using exclusively Venovo stents. Six of the iliocaval recanalizations were performed for occlusion of a filter-bearing IVC and one for thrombosis related to malignant compression. Three of the procedures required sharp recanalization techniques. All patients were discharged on anticoagulation and antiplatelet regimens with the exception of one patient for whom antiplatelet therapy was contraindicated. Clinical follow-up was available in all patients and 7 patients had in person follow up visits within the first 3 months after the procedure at which Villalta scores were calculated with an average of 4.3 (range 1-9). 18 of 19 patients (95%) demonstrated short-term primary stent patency. One patient had iliac stent thrombosis within 2 months but remained symptomatically improved and no additional intervention was performed. One stent maldeployment occurred requiring an additional stent placement. There were four complications including one spontaneous retroperitoneal hematoma, two access site bleeding complications prompting ER visits but treated conservatively and one episode of epistaxis requiring adjustment of the initial antiplatelet regimen. Initial experience with the Venovo venous stents in chronic iliocaval and iliofemoral venous occlusions has demonstrated good technical success, initial patency and relief of post-thrombotic syndrome symptoms as evidenced by early clinical follow up. Continued follow up will be needed to determine the durability of these results.

Efficacy of transarterial embolisation in patients with life-threatening spontaneous retroperitoneal haematoma

To evaluate the technical and clinical success of embolisation in patients with life-threatening spontaneous retroperitoneal haematoma (SRH) and to assess predictors of clinical outcome. Thirty patients (mean age: 71.9±9.8 years) with SRH underwent digital subtraction angiography (DSA). All patients received anticoagulant or antiplatelet medication or a combination of both at the time the SRH occurred. Pre-interventional computed tomography angiography (CTA) revealed active retroperitoneal bleeding in 28 of 30 (93.3%) patients. DSA identified active haemorrhage in 22 of 30 patients (73.3%). Twenty-nine of 30 (96.7%) patients underwent embolisation. n-Butyl-2-cyanoacrylate (NBCA) was used in 15 patients (51.7%), coils were used in 10 patients (34.5%), and both embolic agents were used in four patients (13.8%). The technical success rate was 100%. Pre-interventional haemoglobin levels increased significantly after embolotherapy from 70.9±16.1 g/l to 87±11.3 g/l (p<0.001), whereas partial thromboplastin time decreased from 58±38 to 30±9 seconds (p<0.001) after embolotherapy. The need for transfusion of concentrated red cells decreased from 3±2.2 to 1±1.1 units (p<0.001) after the intervention. Clinical success was achieved in 19 of 29 (65.5%) patients. No major procedure-related complications occurred. Seven patients (24.1%) died within 30 days after the procedure. Embolotherapy in patients with life-threatening SRH leads to a high technical success rate and is a safe therapeutic option. The clinical success rate was acceptable and influenced by pre-interventional coagulation status and by the amount of transfused concentrated red cells.

A Rare Cause of Spontaneous Retroperitoneal Hematoma: The Rupture of the Adrenal Artery Aneurysm and its Endovascular Treatment

Adrenal artery aneurysm and its spontaneous rupture is a very scarce but severe condition that can require urgent treatment. A 79-year-old man with retroperitoneal hemorrhage resulted from adrenal artery aneurysm who underwent endovascular treatment is reported in this case report. This case demonstrates the value of the selective angiography and endovascular treatment in the management of retroperitoneal hematoma due to rupture of visceral aneurysms.

Síndrome de Wünderlich en el embarazo y puerperio, presentación de caso y revisión de la bibliografía

El síndrome de Wunderlich también llamado hematoma retroperitoneal espontáneo, es una complicación poco frecuente de etiología variada, En un 50% se asocia a un Angiomiolipoma Renal. El síntoma más común es el dolor abdominal y en un 20% de los pacientes se observa la característica Tríada de Lenk la cual consiste en: dolor abdominal (67%), masa abdominal palpable (54%) y shock hipovolémico (26%). El estudio diagnóstico de elección es la Tomografía Abdominal con contraste Intravenoso, sin embargo la angiografía tiene una utilidad diagnóstica y terapéutica en aquellos pacientes candidatos a angioembolización. El tratamiento de elección depende del estado clínico del paciente, la forma de presentación y en algunos casos la función renal previa, en la mayoría de las ocasiones consiste en Nefrectomía, sin embargo se han descrito casos de manejo exitoso con Nefrectomía parcial o Angioembolización selectiva en pacientes seleccionados: con evolución insidiosa, hemodinámicamente estables, afección en ambos riñones entre otras. Presentamos el caso de una paciente femenino de 19 años de edad, cursando los primeros dias de puerperio fisiológico, quien acude a urgencias por dolor abdominal y hematuria macroscópica, se encuentra en US abdominal una lesión heterogénea en el riñón derecho, se realiza TAC abdomen con contraste IV, se descubre una imagen sugerente de hematoma renal derecho, debido a un abrupto deterioro hemodinamico, se decide relizar nefrectomía derecha, el reporte de patología descarta la presencia de angiomiolipoma u alguna otra neoplasia o condición anormal en la pieza quirúrgica.&#x0D;