1.Delayed High Output Heart Failure due to Arteriovenous Fistula Complicated with Herniated Disc Surgery.
Taeshik PARK ; Sang Ho PARK ; Alok ARORA
Journal of Korean Medical Science 2016;31(12):2051-2053
A 36-year-old male presented with progressive exertional dyspnea over months. Physical examination showed jugular venous distension, lung crecipitations, femoral bruit and pitting pedal edema. Echocardiogram showed a dilated right ventricle with severe pulmonary hypertension and a non collapsing inferior vena cava (IVC). On right heart catheterization, IVC oxygen saturation was noted at 92% suggesting arterial mixing; a computed tomography of the abdomen showed a fistula between the right common iliac artery to the right common iliac vein at L4 level and a massive IVC; this was linked to trauma from a disectomy done 16 years ago at L4–L5 level. Endovascular sealing with a 16 × 60 mm bifurcated stent graft (S & G Biotech, Seoul, Korea) was performed which led to complete resolution of the patient’s dyspnea. Iatrogenic vascular injury during lumbar disc surgery, although rare, can lead to high output cardiac failure developing over months to years.
Abdomen
;
Adult
;
Arteriovenous Fistula*
;
Blood Vessel Prosthesis
;
Cardiac Catheterization
;
Cardiac Catheters
;
Dyspnea
;
Edema
;
Fistula
;
Heart Failure*
;
Heart Ventricles
;
Heart*
;
Humans
;
Hypertension, Pulmonary
;
Iliac Artery
;
Iliac Vein
;
Intervertebral Disc Displacement*
;
Lung
;
Male
;
Oxygen
;
Physical Examination
;
Seoul
;
Vascular System Injuries
;
Vena Cava, Inferior
2.Vascular Injuries Due to Penetrating Missile Trauma in Anti-Terrorism Ops
Rishi DHILLAN ; Alok BHALLA ; Sushil Kumar JHA ; Hakam SINGH ; Aman ARORA
Journal of the Korean Society of Traumatology 2019;32(2):93-100
PURPOSE:
Penetrating vascular trauma though less common poses a challenge to all Surgeons. This study was designed to analyse the profile, management modalities of vascular trauma and the outcomes thereof at a Trauma Care Centre in a Tertiary care setting in hostile environment in India.
METHODS:
A prospective review of all patients with arterial and venous injuries being transferred to the Trauma Center at out Tertiary Care Center between June 2015 and May 2018 was done. Demographics, admission data, treatment, and complications were reviewed.
RESULTS:
There were a total of 46 patients with 65 vascular injuries, 39 arterial injuries and 26 venous injuries. The age range was 21 to 47 years. Nineteen patients had both arterial and venous injuries. A total of 42 cases presented within 12 hours of injury and complete arterial transections were found in 33 cases (80.49%). There were three mortalities (6.52%) and three amputations (8.33%). The overall limb salvage rate was 91.67% with popliteal artery being the commonest injured artery. Poor prognosticators for limb salvage were increasing time to present to the trauma centre, hypovolemic shock, multi-organ trauma and associated venous injuries.
CONCLUSIONS
Penetrating missile trauma leading to vascular injuries has not been widely reported. Attempting limb salvage even in cases with delayed presentation should be weighed with the threat to life before revascularisation and should preferably be done at a centre with vascular expertise. A team approach with vascular, orthopaedic, general surgeons, and critical care anaesthesiologists all aboard improve the outcomes manifold. Use of tourniquets and early fasciotomies have been emphasized as is the use of native veins as the bypass conduit. This is probably the largest study on penetrating Vascular trauma in anti-terrorism ops from the Indian subcontinent. It highlights the significance of prompt recognition and availability of vascular expertise in optimally managing cases of vascular trauma.
3.Effect of Iron Availability on Induction of Systemic Resistance to Fusarium Wilt of Chickpea by Pseudomonas spp..
Ratul SAIKIA ; Alok K SRIVASTAVA ; Kiran SINGH ; Dilip K ARORA ; Min Woong LEE
Mycobiology 2005;33(1):35-40
Selected isolates of Pseudomonas fluorescens (Pf4-92 and PfRsC5) and P. aeruginosa (PaRsG18 and PaRsG27) were examined for growth promotion and induced systemic resistance against Fusarium wilt of chickpea. Significant increase in plant height was observed in Pseudomonas treated plants. However, plant growth was inhibited when isolates of Pseudomonas were used in combination with Fusarium oxysporum f. sp. ciceri (FocRs1). It was also observed that the Pseudomonas spp. was colonized in root of chickpea and significantly suppressed the disease in greenhouse condition. Rock wool bioassay technique was used to study the effect of iron availability on the induction of systemic resistance to Fusarium wilt of chickpea mediated by the Pseudomonas spp. All the isolates of Pseudomonas spp. showed greater disease control in the induced systemic resistance (ISR) bioassay when iron availability in the nutrient solution was low. High performance liquid chromatography (HPLC) analysis indicated that all the bacterial isolates produced more salicylic acid (SA) at low iron (10microM EDDHA) than high iron availability (10microFe3+ EDDHA). Except PaRsG27, all the three isolates produced more pseudobactin at low iron than high iron availability.
Biological Assay
;
Chromatography, Liquid
;
Cicer*
;
Colon
;
Fusarium*
;
Iron*
;
Plants
;
Pseudomonas fluorescens
;
Pseudomonas*
;
Salicylic Acid
;
Wool
4.Induction of Defense Related Enzymes and Pathogenesis Related Proteins in Pseudomonas fluorescens-Treated Chickpea in Response to Infection by Fusarium oxysporum f. sp. ciceri.
Ratul SAIKIA ; Rakesh KUMAR ; Tanuja SINGH ; Alok K SRIVASTAVA ; Dilip K ARORA ; Min Woong LEE
Mycobiology 2004;32(1):47-53
Pseudomonas fluorescens 1-94 induced systemic resistance in chickpea against Fusarium wilt of chickpea caused by Fusarium oxysporum f. sp. ciceri by the synthesis and accumulation of phenolic compounds, phenylalanine ammonia lyase(PAL) and pathogenesis related(PR) proteins(chitinase, beta-1,3-glucanase and peroxidase). Time-course accumulation of these enzymes in chickpea plants inoculated with P. fluorescens was significantly(LSD, P=0.05) higher than control. Maximum activities of PR-proteins were recorded at 3 days after inoculation in all induced plants; thereafter, the activity decreased progressively. Five PR peroxidases detected in induced chickpea plants. Molecular mass of these purified peroxidases was 20, 29, 43, 66 and 97 kDa. Purified peroxidases showed antifungal activity against plant pathogenic fungi.
Ammonia
;
Cicer*
;
Fungi
;
Fusarium*
;
Peroxidases
;
Phenol
;
Phenylalanine
;
Plants
;
Pseudomonas fluorescens
;
Pseudomonas*