Long-Term Follow-Up Data of Tumor-Induced Osteomalacia Managed with Surgery and/or Radiofrequency Ablation from a Single Center.

Data on radiofrequency ablation (RFA) in tumor-induced osteomalacia (TIO) are restricted to case reports (~ 11 patients) and long-term follow-up data are further scarce. We describe our experience on managing TIO from a tertiary care center in India. Retrospective study of patients with localized TIO was performed and clinical, biochemical, treatment and follow-up details were retrieved. Normalization of serum phosphorus in absence of phosphate supplementation was defined as remission. Of 33 patients (23 males), 24 patients underwent surgery as first-line treatment, and early remission, delayed remission (> 1 month for phosphorus normalization) and persistence were observed 12, 3, and 9 patients at a median follow-up of 5 (4-9) years. The gender, age, tumor size, location of tumors and FGF23 levels were not statistically different in patients who were in remission after surgery versus those with persistent disease. Second/third line treatment included conventional medical treatment and/or repeat surgery (n = 3), radiotherapy (n = 3), peptide receptor radionuclide therapy (n = 1), RFA (n = 1). Two patients had transient worsening (weeks) of weakness post-surgery. 10 patients underwent RFA (first-line n = 9); at the last follow-up 5 (4-10) years, 7 are in remission. Two of three persistent disease patients had large tumors (5.6 and 3.6 cm). There were no RFA-related complications except local ulcer in one. Although persistent disease was present in a few patients in both arms, there was no recurrence in either RFA or surgical cohort. RFA provide durable response similar to surgery, persistence requires multi-modality treatment.

Endovascular treatment of Budd-Chiari syndrome: Single center experience.

BACKGROUND AND AIM: Percutaneous radiologic interventions are increasingly being used in management of Budd-Chiari syndrome (BCS). Minimal invasive approach has resulted in excellent long-term outcomes. We evaluated the treatment efficacy and safety of radiological intervention in patients with BCS. METHODS: Between January 2008 and June 2014, 190 patients with BCS underwent endovascular procedures (hepatic vein, collateral vein or inferior vena cava [IVC] plasty with or without stenting, or transjugular intrahepatic portosystemic shunting [TIPSS]). Clinical features, biochemical profile, and stent patency were monitored pre-procedure and post-procedure, and for a median duration of 42 (12-88) months. RESULTS: Of 190 patients (mean [SD] age = 26.9 [11.5] years; 102 men), imaging revealed hepatic vein obstruction in 147 patients, IVC obstruction in 40 patients, and concomitant hepatic vein and IVC obstruction in three patients. At presentation, the radiological interventions included hepatic vein plasty/stenting in 38 patients, collateral vein stenting in three patients, IVC plasty/stenting in 40 patients, both IVC and hepatic vein stenting in three patients, and TIPSS in 106 patients. Response was seen in 153 patients (80.5%). Repeat interventions were required in 19 patients (10.0%). Complications were noted in nine patients (4.7%). CONCLUSION: Our study demonstrates that venous recanalization and TIPSS for BCS are safe and efficacious.

Mediastinal Fibrosis Treated with Endovascular Stent Placement.

We report an interesting case of mediastinal fibrosis causing significant narrowing of both pulmonary arteries (right > left) which led to progressively increasing dyspnoea and pulmonary hypertension. This was treated with endovascular stenting of the right pulmonary artery with good clinical outcome.

Partial Splenic Artery Embolization for the Management of Symptomatic Hypersplenism in Portal Hypertension: Clinical Insights from a Case Series.

Background and aims: Partial splenic artery embolization (PSAE) is an alternative treatment modality for managing hypersplenism secondary to portal hypertension. We are presenting a case series of patients with portal hypertension who underwent PSAE for symptomatic hypersplenism. Methods: We included patients with portal hypertension who underwent PSAE from January 2022 to December 2022. Patients' characteristics and procedure related complications were noted. Data were analyzed for improvement in the hematological parameters. Results: A total of 11 (7 women, median age 34 [18-56] years) patients were included. Three patients were cirrhotic (hepatitis B-2, metabolic dysfunction-associated steatotic liver disease -1) and 8 were non-cirrhotic (extra-hepatic portal vein obstruction-5, Non cirrhotic portal fibrosis-3). Splenic artery aneurysm was concomitantly present in 5 cases. Technical success was achieved in all cases. Post embolization, hemoglobin, white blood cells and platelet counts improved at 4 weeks, 12 weeks and 24 weeks along with symptomatic improvement. All patients had post-embolization syndrome. One patient developed transient ascites and secondary bacterial peritonitis which was managed conservatively. One patient died due to splenic abscess and septicemia. Conclusion: Although, hematological parameters and symptoms improve post procedure, PSAE is associated with major complications and should be performed judiciously in selected cases only. Graphical abstract is presented in Figure 1.

Fluoroscopy and CT Guided Translumbar Tunneled Dialysis Catheter for Hemodialysis Access Failure in a Case of Autosomal Dominant Polycystic Kidney Disease.

Vascular access in hemodialysis is essential to end-stage renal disease (ESRD) patients' survival. Unfortunately, even after years of recent advances, a significant number of patients may develop multi-access failure for many reasons. In this situation, arterial-venous fistula (AVF) or catheters placement in traditional vascular sites (jugular, femoral, or subclavian) are not feasible. In this scenario, translumbar tunneled dialysis catheters (TLDCs) may be a salvage option. The use of central venous catheters (CVC) is associated with an increased incidence of venous stenosis that can progressively limit future vascular access routes. The common femoral vein can be used for temporary access in patients in whom traditional approaches for permanent central venous access may not be feasible because of either chronically occluded or not accessible vasculature; however, this location is not preferred for long-term venous access because of the high rate of catheter related blood stream infections (CRBSI). In these patients, a direct translumbar approach to the inferior vena cava is a lifesaving alternative. This approach has been described by several authors as a bail-out option. Fluoroscopy-guided access via a translumbar approach into the inferior vena cava bares the risk of hollow-organ perforation or severe bleeding from the inferior vena cava or even the aorta. To minimize the risk of complications caused by a translumbar central venous access, we hereby present a hybrid approach with CT-guided translumbar access of the inferior vena cava followed by a conventional implantation of the permanent central venous catheter. CT scan-guided access of IVC that further helps in our case as patient has large bulky kidneys secondary to autosomal dominant polycystic kidney disease.

Adrenal Venous Sampling in Primary Aldosteronism: Single-Centre Experience from Western India.

Introduction: The protocols and criteria used for adrenal venous sampling (AVS) differ across centres. There are no studies from the Indian subcontinent describing AVS-based outcomes in primary aldosteronism (PA). We aim to describe our experience from a single centre. Methods: Retrospective records from 2018 to 2020 of patients with confirmed PA who underwent AVS were reviewed. Clinical, imaging, AVS data and outcomes (as per PASO criteria) were recorded. AVS was performed by sequential sampling with cosyntropin stimulation with intraprocedural cortisol and cut-off of selectivity >5 and lateralization >4 by a single radiologist. Results: Fifteen patients with median age of 50 years (41-58) and duration of hypertension of 156 (36-204) months were included. Ten had grade 3 hypertension, 13 had hypokalaemia and 3 had hypokalaemic paralysis. On CT scan, eight patients had bilateral adrenal lesions, four had unilateral adenoma and three patients had normal adrenals. AVS was bilaterally successful in all and showed lateralization of disease in 10 patients and was bilateral in the remaining 5 patients. Overall concordance of CT and AVS was 5/15 (33.3%). Among seven patients who underwent surgery, complete clinical success was seen in two and partial clinical success in the remaining five. Complete biochemical success was seen in two and partial in one. There were no major complications. Conclusions: AVS performed by a single radiologist with defined protocols has a good success rate. AVS has additional value over CT scan in lateralization, especially when CT shows bilateral disease.

Pulmonary artery pseudoaneurysm: an unsuspected cause of haemoptysis in post-COVID fungal infection of the chest.

Pulmonary Artery Pseudoaneurysm (PAP) is a rare but potentially fatal cause of haemoptysis, which often remains unsuspected by both clinicians and radiologists. Traditionally, infections like tuberculosis and bacterial endocarditis have been associated with the development of PAPs. However, additional causative factors like trauma, neoplasia, pulmonary hypertension and vasculitis are also to be considered. With the advent of the novel Coronavirus (COVID-19), attempts have been undertaken to study its multisystem implications. Also, a strong correlation has also been established between COVID-19 and fungal infestation of the paranasal sinuses and lung parenchyma. Hence, PAP should be suspected in post-COVID patients who develop new-onset haemoptysis or new focal consolidation on imaging. Imaging investigations like chest radiograph, CT chest, and CT Pulmonary Angiography help in the establishment of a diagnosis and assessment of the relevant anatomy, which aid in the classification of the PAP. Management strategies include endovascular treatment, surgical resection or conservative approach in form of prolonged antimicrobial therapy. Interventional radiological procedures like endovascular embolisation are especially useful in vitally unstable cases of massive haemoptysis who are poor surgical candidates. Our case highlights the unique presentation of pulmonary arterial pseudoaneurysm induced by a post-COVID-19 fungal infection.

Endovascular repositioning and resizing of the distal catheter of a ventriculoatrial shunt.

Ventriculoatrial (VA) shunts are an effective alternative to ventriculoperitoneal shunts for diversion of cerebrospinal fluid in patients with hydrocephalus. Accurate placement of the distal end of a VA shunt in the right atrium is imperative for appropriate drainage and can be technically challenging. Misplaced or dislodged shunt catheter needs urgent repositioning, which can be performed by endovascular techniques. We present a case of VA shunt placement related complication, in which the dislodged distal fragment was retrieved by endovascular techniques. The remaining distal catheter, found to be in the internal jugular vein, was not only repositioned, but also resized for accurate placement in the right atrium.

Plugged percutaneous liver biopsy using Tru-cut needle and coils: A retrospective study.

BACKGROUND: Plugged percutaneous liver biopsy, though has been in use for many years, is being used more frequently in patients in whom percutaneous liver biopsy is contraindicated due to proven or probable bleeding tendencies. We report our experience with this procedure, its indications, efficacy, and complications in Indian population over 2 years. METHODS: A retrospective study of 127 consecutive patients who had undergone plug liver biopsy from April 2017 to May 2019 was done from the database maintained in our department. The indications, technical success, complications, and impact of histological diagnosis on the management of those patients were evaluated. RESULTS: A total of 127 biopsies were performed of which 68 were males and 59 were females, aged between 7 and 73 years. No procedures were abandoned; however, 13 cases needed ultrasonography (USG) guidance because of small size of the liver or presence of right perihepatic fluid. Out of 127 biopsies, none of the samples was inadequate and yielded adequate tissue for histopathological diagnosis. Seven patients required repeat study only because underlying liver disease was suspected clinically and the previous biopsy report had turned out to be normal. Histopathological examination in our study showed autoimmune hepatitis in 61, cirrhotic changes either hepatitis B virus (HBV) or hepatitis C virus (HCV) related in 40, veno-occlusive disease in 3, cholestatic disease in 2, and Wilson's disease in 2 patients. The remaining 19 were normal. Complications occurred in 3 patients - arterioportal fistula, pneumothorax, and inadequate coiling causing mild hemoperitoneum. CONCLUSION: Percutaneous liver biopsy followed by plugging of the tract with coils is a safe, easy, and effective method in patients with underlying bleeding tendencies, minimal ascites, and small liver.

Mycotic aneurysm of the popliteal artery due to infective endocarditis.

Mycotic aneurysm (MA) is an infrequent complication of infective endocarditis (IE), reported in 3 to 15% of the patients with IE. The commonest site for such aneurysm is intracranial vessels (65%) followed by abdominal and then the peripheral vessels. We describe a case of 32 year old man with recently diagnosed rheumatic heart disease and mitral regurgitation. He had infective endocarditis (IE) and developed a large mycotic popliteal artery aneurysm (MPAA) and a small profunda femoris arterial aneurysm (PFAA) while he was on antibiotic therapy. The patient was successfully treated with prolonged antibiotic therapy and embolisation of the MPAA while PFAA was managed conservatively.

Acute aortic syndrome--penetrating atherosclerotic ulcer with contained rupture managed by endovascular stent-grafting.

We present the case of a hypertensive male who came with acute onset of severe backache and hypotension. Emergency imaging revealed a penetrating atherosclerotic ulcer of descending thoracic aorta with contained rupture and bilateral hemothorax. Initially stabilised with medical management, this patient went on to undergo endovascular stent-grafting. The sequence of clinical events of this uncommon entity and the relatively novel interventional modality are reviewed.

Long Term Survival of Patients Undergoing TIPS in Budd-Chiari Syndrome.

BACKGROUND: There has been significant improvement in understanding the etiology and management of Budd-Chiari Syndrome (BCS). Patients with chronic or acute-on-chronic BCS need radiological interventions in the form of angioplasty, hepatic vein/inferior vena cava stenting or Transjugular Intrahepatic Portosystemic Shunt (TIPS). Data regarding the long term follow up of patients undergoing TIPS is limited. We thus prospectively followed-up BCS patients who underwent TIPS at our center. METHODS: This study included 42 patients with BCS who underwent TIPS with a covered stent between 2004 and 2014. We analyzed the etiology, symptoms, severity, laboratory parameters and imaging pre and post TIPS. All patients underwent surveillance for hepatocellular carcinoma. RESULTS: Patients demographics included 26 males and 16 females with a mean age of 40.5 years (19-68 years). The mean Model for End-Stage Liver Disease score of the entire cohort was 15.38 (range: 9-25). Thirty-four patients were grouped into Rotterdam Class 2 and remaining into Class 3. There was significant improvement in ascites, gastrointestinal bleed, renal function and transaminase levels post TIPS. There were 11 deaths over the follow-up period - 4 within one month, 2 within six months and the rest after 3 years following TIPS. Median duration from clinical presentation to TIPS was 2.1 weeks and median survival till follow-up was 45.5 months (0-130 months). 33/42 patients underwent TIPS prior to 2013, and their median survival till follow-up was 55 months. Six out of eleven deaths that occurred within six months post-TIPS were before 2006; when the technique of TIPS creation was evolving. The cumulative 1 year, 5 years and 10 years OLT-free survival was 86%, 81% and 76%, respectively. Two patients underwent a liver transplant at 4 and 7 years after TIPS. CONCLUSION: Our results validate the role of TIPS in the management of patients with BCS. With the accessibility of TIPS, the requirement for liver transplantation has become rare.

Budd-Chiari Syndrome With Spontaneous Intrahepatic Portosystemic Shunts: A Case Series.

Intra-hepatic portal-venous collaterals are characteristic of Budd-Chiari syndrome (BCS) and are usually of small caliber and seen on Doppler. Creation of large portal-systemic shunt, either radiologically (Transjugular intrahepatic porto-systemic shunt) or surgically results in excellent long term outcomes in BCS. Here, we report a series of three rare cases of asymptomatic BCS, who had spontaneous large intra-hepatic portal-systemic shunts.

Percutaneous Transhepatic Biliary Drainage in the Management of Post-surgical Biliary Leaks.

The aim of this study was to evaluate the efficacy of percutaneous transhepatic biliary drainage (PTBD) in the treatment of post-surgical biliary leaks and its efficacy in restoring the integrity of bile ducts. One hundred and fifty-seven patients with a post-surgical biliary leak were treated by means of percutaneous transhepatic biliary drainage. The biliary leak was due to laparoscopic procedures in 114 patients, while 43 patients had postoperative leak following open surgery. Percutaneous transhepatic biliary drainage was performed with an 8- to 10-F catheter, with the side holes positioned proximal to the site of extravasation to divert bile flow away from the leak site. The established biliary leaks at the site of origin were diagnosed at an average of 7 days (range 2-150 days) after surgery. In all cases, percutaneous access to the biliary tree was achieved. In 62 patients, biliary leak completely healed after drainage for 10-50 days (mean, 28 days) while 89 patients underwent surgical reconstruction subsequently. PTBD is a feasible, effective, and safe procedure for the treatment of post-surgical biliary leaks. It is therefore a reliable alternative to surgically repair smaller biliary leaks, while in patients with large defects, it helps prepare patients for surgical reconstruction.

Leaking pseudoaneurysm of lower limb saphenous vein graft: a rare complication and its successful treatment by endovascular embolization.

A rare complication after lower limb revascularization using a saphenous vein bypass graft in a crush injury patient where the saphenous vein graft was the sole supplying vessel to the leg is described; a pseudoaneurysm developed in the saphenous vein graft and caused active profuse bleeding through the surgical wound. The aetiology of this condition is uncertain but it could occur owing to slippage of ligature from one of the tributaries of the saphenous vein. The diagnosis was made by digital subtraction angiography. The pseudoaneurysm was successfully obliterated by glue embolization, which stopped the bleeding immediately, with preservation of distal flow, thereby salvaging the limb.

Cirrhotic cardiomyopathy is less prevalent in patients with Budd-Chiari syndrome than cirrhosis of liver.

BACKGROUND AND AIM: Cirrhotic cardiomyopathy (CCM) is associated with high mortality after transjugular intrahepatic portosystemic shunt (TIPS) and liver transplantation in patients with cirrhosis. There is no data about the prevalence or impact of CCM in Budd-Chiari syndrome (BCS). We assessed the prevalence of CCM in patients with BCS and its impact on outcome after radiological intervention. METHODS: Thirty-three consecutive patients with BCS (15 men) and 33 controls with hepatitis B-related cirrhosis (18 men, matched for Child-Pugh score) were evaluated with baseline electrocardiography (ECG), echocardiography (ECHO) and dobutamine stress ECHO, and ECG (DSE). The two groups were compared for prevalence of CCM. Patients with BCS with and without CCM were assessed for development of heart failure, duration of intensive care unit (ICU) stay, and in-hospital mortality immediately after radiological intervention. RESULTS: Fewer patients with BCS had CCM (7/21 vs. 21/33; p = 0.001, OR-0.16, CI [0.05-0.5]), diastolic dysfunction (DD) (0/33 vs. 6/33; p = 0.01, OR-0.06, CI [0.00-1.1]), and prolonged QTc interval (5/33 vs.17/33; p = 0.001, OR-0.16, CI [0.05-0.5]) despite correction for age. Patients with BCS had lower end-systolic and end-diastolic volumes of left and right ventricles. None of the 19 patients (five with CCM) with BCS undergoing radiological intervention (12 TIPS, 4 inferior vena cava, and 3 hepatic vein stenting) developed heart failure or had prolonged ICU stay. There was no in-hospital mortality. CONCLUSION: Patients with BCS have lower frequency of CCM as compared to patients with cirrhosis. CCM may not adversely affect outcomes after radiological interventions.

Transcatheter embolization as primary treatment for visceral pseudoaneurysms in pancreatitis: clinical outcome and imaging follow up.

BACKGROUND: Pseudoaneurysm formation is an uncommon but fatal complication of pancreatitis. The morbidity and mortality associated with surgical management is high. Transcatheter embolization is a definitive minimally invasive form of treatment. AIM: To review our experience with transcatheter embolization as a therapeutic modality for pseudoaneurysms complicating pancreatitis. METHODS: This retrospective analysis included data of 30 patients (mean age 37 years, range 25 to 65; 24 men) with visceral pseudoaneurysms secondary to pancreatitis, who underwent diagnostic angiography and transcatheter embolization, during the period March 1993 to February 2003. RESULTS: In 29 patients the pseudoaneurysms were successfully isolated from the circulation, and hemostasis was achieved. Re-bleeding occurred in one patient, for which re-embolization was done. Twenty-nine patients improved clinically. One patient in whom the pseudoaneurysm was successfully embolized died due to septicemic shock. CONCLUSION: Endovascular embolization is a safe and effective non-surgical modality of treatment for visceral pseudoaneurysms complicating pancreatitis.

Radiofrequency ablation, an effective modality of treatment in tumor-induced osteomalacia: a case series of three patients.

CONTEXT: Tumor-induced osteomalacia is curable if the tumors can be totally excised. However, when the tumors are present in locations that make surgery disproportionately risky, the need for less invasive strategies like radiofrequency ablation (RFA) is realized. PATIENTS AND METHODS: We describe three patients with suspected tumor-induced osteomalacia who were treated in our department between 2006 and 2013 with tumors in surgically difficult locations and were subjected to single or multiple sessions of RFA. The response was documented in terms of symptomatic improvement, phosphorus normalization, and follow-up (99m)Technitium-labelled hydrazinonicotinyl-Tyr3-octreotide ((99m)Tc HYNIC TOC) scan. RESULTS: Two of the three individuals, patient A (with a 1.5 × 1.2-cm lesion in the head of the right femur) and patient B (with a 1.3 × 1.2-cm lesion on the endosteal surface of the shaft of the left femur), achieved complete remission with single sessions of RFA. Three months after the procedure, (99m)Tc HYNIC TOC scans revealed the absence of uptake at the previous sites, corroborating with the clinical improvement and phosphorus normalization. Patient C had a large 5.6 × 6.5-cm complex lesion in the lower end of the left femur with irregular margins, loculations, and bone grafts placed in previous surgery. He failed to achieve remission after multiple sessions of RFA due to the complex nature of the lesion, although the tumor burden was reduced significantly as documented on serial (99m)Tc HYNIC TOC scans. CONCLUSIONS: Although surgery remains the treatment of choice, RFA could be an effective, less invasive, and safe modality of treatment in judiciously selected patients.

Spectrum of imaging in Budd Chiari syndrome.

Budd Chiari syndrome is an uncommon heterogeneous group of disorders which occur due to obstruction at any level from the hepatic venules to the junction of inferior vena cava and right atrium of heart which has significant morbidity and mortality. An early diagnosis of the disease is required for appropriate treatment. Due to the diffuse nature of the disease, normal biopsy findings do not exclude the disease. Proper clinical history and imaging are essential for definitive diagnosis. In this pictorial essay, we discuss the imaging spectrum of Budd Chiari syndrome.

Isolated left brachiocephalic vein aneurysm presenting as a symptomatic mediastinal mass.

Thoracic venous aneurysms arising from the mediastinal systemic veins are very rare conditions. We report a case of a 42-year-old female who presented with dull aching pain in the left infraclavicular region, dyspnea and palpitation since 4-5 month. Chest roentgenogram revealed superior mediastinal widening secondary to a mass. Contrast enhanced CT scan revealed a homogenously enhancing superior mediastinal mass. Selective left brachiocephalic vein venography confirmed the diagnosis of an isolated large left brachiocephalic vein saccular aneurysm. The patient is being followed up without surgical treatment. Although rare a diagnosis of innominate vein aneurysm should be considered when a uniformly attenuating mediastinal mass is seen on CT so that unnecessary biopsy and surgery can be avoided.