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RISS 인기검색어
- 검색키워드
- 저자 : Praveen Kumar Ravi (검색결과 5 건)
- 무료
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Undescended cecum with accessory right colic artery: a rare case report
Praveen Kumar Ravi,Manisha Rajanand Gaikwad,Pravash Ranjan Mishra,Naina Santosh Wakode,Prabhas Ranjan Tripathy,E. Tripati Patro,Babita Kujur,Santosh Laxman Wakode 대한해부학회 2017 Anatomy & Cell Biology Vol.50 No.3
Midgut malrotation and incomplete rotation are common causes of neonatal intestinal obstruction. At end of 10 week of intrauterine life, cecum will be placed in subhepatic region temporarily and descends to right lower quadrant by eleventh week. Arrest of cecum in subhepatic region or undescended cecum is a rare congenital anomaly of mid gut. Usually, it remains asymptomatic and is diagnosed incidentally. If any pathology occurs in anomalous part, like appendicitis then the diagnosis and treatment will be challenging in all age groups. Variation in blood supply have also been reported with anomalies leading to iatrogenic injuries during colonoscopy and surgeries. Lack of knowledge of these rare variations may lead to delayed diagnosis of appendicitis leading to perforation and surgical emergencies. In the present case, we describe an undescended cecum and its associated variation in branching pattern of superior mesenteric artery.
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Praveen Kumar, V.V.,Ravi Prasad, D. Techno-Press 2019 Advances in concrete construction Vol.7 No.2
The present study is focused on the mechanical and durability properties of ternary blended cement concrete mix of different grades 30 MPa, 50 MPa and 70 MPa. Three mineral admixtures (fly ash, silica fume and lime sludge) were used as a partial replacement of cement in the preparation of blended concrete mix. The durability of ternary blended cement concrete mix was studied by exposing it to acids HCl and $H_2SO_4$ at 5% concentration. Acid mass loss factors (AMLF), acid strength loss factor (ASLF) and acid durability factor (ADF) were determined, and the results were compared with the control mix. Chloride ions penetration was investigated by conducting rapid chlorination penetration test and accelerated corrosion penetration test on control mix and ternary blended cement concrete. From the results, it was evident that the usage of these mineral admixtures is having a beneficiary role on the strength as well as durability properties. The results inferred that the utilization of these materials as a partial replacement of cement have significantly enhanced the compressive strength of blended concrete mix in 30 MPa, 50 MPa and 70 MPa by 42.95%, 32.48% and 22.79%. The blended concrete mix shown greater resistance to acid attack compared to control mix concrete. Chloride ion ingress of the blended cement concrete mix was low compared to control mix implying the beneficiary role of mineral admixtures.
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( Ravi Daswani ),( Anil Arora ),( Ashish Kumar ),( Praveen Sharma ),( Shrihari A ),( Pankaj Puri ) 대한간학회 2018 춘·추계 학술대회 (KASL) Vol.2018 No.1
Aims: Hepatitis B, hepatitis C, alcohol, and non-alcoholic ste atohepatitis are important etiological factors for hepatocellular carcinoma (HCC). Role of diabetes mellitus (DM) as a contributory factor for HCC in patients with viral etiology has been adequately demonstrated, however its role in HCC due to alcohol and NASH remains controversial. This case-control study aimed to investigate the association of DM with HCC in patients with alcoholic liver disease and cryptogenic (including NASH-related) liver disease. Methods: We conducted this case-control study at Sir Ganga Ram Hospital, Delhi, India. Consecutive patients of HCC due to alcohol or cryptogenic etiologies presenting between 2011 and 2017 were included in the study as cases. Age and sex matched patients of chronic liver disease of same etiologies, presenting during the same period, were chosen as controls. Cases and controls were in the ratio of 1:2. Patients of any other etiologies were excluded. Prevalence of DM among cases and controls were compared. Results: A total of 138 patients of HCC (mean age 61±9 years, 95% males) were included in the study. The etiologies of HCC were cryptogenic (including NASH) 54%, and alcohol 46%. DM was present in 48% of patients. A total of 276 controls (mean age 61±7 years, 92% males; P=NS compared to cases) were in cluded in the study. Among patients of HCC due to cryptogenic / NASH etiology, the prevalence of DM was significantly higher than in controls (P=0.012; OR 2.3, 95% CI 1.2, 4.3). Among patients of HCC due to alcohol etiology the prevalence of DM was similar to that of controls (P=NS). Conclusions: DM is strongly associated with the increased risk of HCC in patients of cryptogenic / NASH etiology. Therefore, these patients represent a high HCC risk population and should be considered for closer HCC surveillance program. DM does not seem to increase the risk of HCC in patients of chronic liver disease due to alcohol etiology.
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Role of liver transplantation in severe alcoholic hepatitis
( Ravi Daswani ),( Ashish Kumar ),( Praveen Sharma ),( Vikas Singla ),( Naresh Bansal ),( Anil Arora ) 대한간학회 2018 Clinical and Molecular Hepatology(대한간학회지) Vol.24 No.1
Severe alcoholic hepatitis has very high short term mortality and corticosteroids have been the mainstay of treatment for decades. Patients with Lille score >0.45 are considered non-responders to steroids and have poor outcome. Recently Orthotopic Liver Transplantation (OLT) is being increasingly used as rescue treatment for these patients, without waiting for 6 months of abstinence. Liver transplant is the only rescue treatment which can potentially provide long term benefit for patients who are steroid non-responders. However, with scarcity of organs being a concern, all patients of severe alcoholic hepatitis cannot be chosen for transplantation in an arbitrary way. There is a need for development of predictive tools and objective protocols to select patients who can justify the use of precious liver grafts. With a stringent criteria for selection of patients receiving the graft, liver transplantation in severe alcoholic hepatitis can become a viable rescue therapeutic option conferring significant survival advantage of both short- and long-term basis. The optimal criteria for selection will also prevent misuse of the liver donor pool as well as to prevent mortality in salvageable patients. Further research needs to be done to identify subset of patients which are at low risk of recidivism and also cannot be managed with pharmacotherapy alone. We reviewed the current knowledge on role of OLT in patient with acute severe alcoholic hepatitis in the present review. (Clin Mol Hepatol 2018;24:43-50)
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A case of potentially lethal vascular variation in association with palmaris profundus muscle
Manisha Rajanand Gaikwad,Praveen Kumar Ravi,Madhumita Patnaik 대한해부학회 2019 Anatomy & Cell Biology Vol.52 No.3
Arterial variations in upper limbs are often reported commonly. Superficial arterial variations accounting for 4.2% of all arterial variations are hazardous during any invasive procedures of the upper limb, from routine intravenous injections to surgeries. Arterial variations are usually associated with inverted or absent palmaris longus. Palmaris profundus, a rare anomalous variation of palmaris longus has been reported in carpal tunnel syndrome as its tendon was associated with median nerve in the carpal tunnel. The authors reported a unique variation in the upper limb arterial pattern—the presence of bilateral superficial brachioulnar artery associated with unilateral palmaris profundus muscle and an abnormal radicle of musculocutaneous nerve to the median nerve in the left side.
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