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Primary Hepatic Choriocarcinoma with Pregnancy: A Diagnostic and Therapeutic Challenge
Amith Kumar Pakkala,Phani Kumar Nekarakanti,Bheerappa Nagari,Ashish Kumar Bansal,Gourang Shroff,Megha S Uppin 대한소화기학회 2023 대한소화기학회지 Vol.81 No.2
Choriocarcinoma occurs mainly in the gonads, but an extragonadal origin has been reported, albeit infrequently. Primary hepatic choriocarcinoma (PHC) is a rare malignancy, with only 11 cases reported. Most cases reported were in males, with none reported in pregnant females. A 23-year-old primigravida presented with a large liver lesion involving the right lobe of the liver at 28 weeks of pregnancy. Preoperative imaging was suggestive of hepatocellular carcinoma. She underwent a non-anatomical resection of the liver lesion. Surprisingly, her postoperative histopathology revealed a diagnosis of PHC. Her blood workup showed elevated beta human chorionic gonadotrophin. She underwent a termination of her pregnancy at 32 weeks. Before initiating adjuvant chemotherapy four weeks after surgery, a whole-body PET scan revealed multiple bi-lobar liver and pelvic deposits. After a multidisciplinary team discussion, she was started on adjuvant chemotherapy. She is currently under regular follow-up, seven months post-surgery. PHC, one of the vascular lesions of the liver, poses a diagnostic and therapeutic challenge, warranting a multidisciplinary approach.
Ashish Kumar Bansal,Bheerappa Nagari,Phani Kumar Nekarakanti,Amith Kumar Pakkala,Venu Madhav Thumma,Surya Ramachandra Varma Guntur,Madhur Pardasani 한국간담췌외과학회 2023 Annals of hepato-biliary-pancreatic surgery Vol.27 No.1
Backgrounds/Aims: Central pancreatectomy (CP) is associated with a higher rate of postoperative pancreatic fistula (POPF), and it is less preferred over distal pancreatectomy (DP). We compared the short- and long-term outcomes between CP and DP for low-grade pancreatic neck and body tumors. Methods: This was a propensity score-matched case-control study of patients who underwent either CP or DP for low-grade pancreatic neck and body tumors from 2003 to 2020 in a tertiary care unit in southern India. Patients with a tumor >10 cm or a distal residual stump length of <4 cm were excluded. Demographics, clinical profile, intraoperative and postoperative parameters, and the long-term postoperative outcomes for exocrine and endocrine insufficiency, weight gain, and the 36-Item Short Form Survey (SF-36) quality of life questionnaire were compared. Results: Eighty-eight patients (CP: n=37 [cases], DP: n=51 [control]) were included in the unmatched group after excluding 21 patients (meeting exclusion criteria). After matching, both groups had 37 patients. The clinical and demographic profiles were comparable between the two groups. Blood loss and POPF rates were significantly higher in the CP group. However, Clavien-Dindo grades of complications were similar between the two groups (p = 0.27). At a median follow-up of 38 months (range = 187 months), exocrine sufficiency was similar between the two groups. Endocrine sufficiency, weight gain, SF-36 pain control score, and general health score were significantly better in the CP group. Conclusions: Despite equivalent clinically significant morbidities, long-term outcomes are better after CP compared to DP in low-grade pancreatic body tumors.
Design Analysis of Amended PIFA with Ferrite Sheet Attachment for SAR Reduction in Human Head
P. Ashok Kumar,Ch. R. Phani Kumar 한국자기학회 2023 Journal of Magnetics Vol.28 No.2
The public's growing awareness of the negative impacts of high-volume temperature fluctuations has led to a marked rise in the Specific Absorption Rate (SAR). In existing techniques, the SAR value is high and more expensive. To overcome this issue, an Amended Planar Inverted F-antenna (PIFA) with Ferrite Sheet Attachment for SAR Reduction in Human Head has been introduced to reduce SAR value. The antenna receives power from the grounded end and Simulated Magnetic Rods (SMR) are utilized in the antenna to lower SAR values. The PIFA and SMR face major difficulties due to their low reliability and bandwidth. Hence, Radiating Blotch is implemented within the antenna to increase bandwidth and dependability. The SAR reduction is increased and various parameters are produced when the header model is simulated using ANSYS HFSS. Overall, the performance with and without a ferrite sheet comparing the analysis for SAR reduction with various parameters.
Ionospheric F2-Layer Variability in Mid Latitude Observed by Anyang Ionosonde
Kwak, Young-Sil,Kumar, Phani,Cho, Il-Hyun,Cho, Kyung-Suk,Kim, Khan-Hyuk,Hong, Sun-Hak 한국우주과학회 2009 한국우주과학회보 Vol.18 No.2
The ionosphere displays variations on a wide variety of time-scales, ranging from few hours to days and up to solar cycles and even more. In this paper, we examine the ionospheric F2-layer variability in mid latitude by analyzing the foF2 and hmF2 from t
Synergism between polyurethane and polydopamine in the synthesis of Ni-Fe alloy monoliths
( Santhana Sivabalan ),( Thangavel Naresh Kumar ),( Naveen Chandrasekaran ),( K. L. N. Phani ),서민강,김병석 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.1
We report the first synthesis of a light-weight macroporous 3-D alloy monolith of Ni-Fe/C using synergism between polydopamine (pDA) and polyurethane (pU); in situ formed polyurethane (pU) enables efficient mixing of pDA (carbon source) and Ni-FeOx resulting in Ni-Fe alloy monoliths at a temperature as low as ~600°C. The monolithic Ni-Fe/C exhibits enhanced oxygen evolution activity.