Efficacy of levofloxacin, omeprazole, nitazoxanide, and doxycycline (LOAD) regimen compared with standard triple therapy to eradicate Helicobacter pylori infection: a prospective randomized study from a tertiary hospital in India.

AIM: In this study, the efficacy of 14-day triple therapy was compared with that of a novel ten-day LOAD regimen to eradicate Helicobacter pylori infection in India. BACKGROUND: Helicobacter pylorus infection is widespread in India. Resistance to antibiotics commonly used against Helicobacter pylori is increasing rapidly, leading to traditional triple therapy's lower success. Therefore, a search for a new regimen is needed. METHODS: In this randomized trial, patients with Helicobacter pylori infection were randomized to a group receiving LOAD therapy (levofloxacin 250 mg OD, omeprazole 40 mg BD, nitazoxanide 500 mg BD, and doxycycline 100 mg OD) for ten days or a group receiving standard triple therapy (pantoprazole 80 mg, amoxicillin 2000 mg, and clarithromycin 1000 mg daily) in divided doses for 14 days). Gastric biopsy/RUT was done 10-12 weeks after completing therapy to confirm Helicobacter pylori eradication. RESULTS: Eradication rates were significantly greater with the LOAD regimen than with standard triple therapy on both intention-to-treat analysis (82.75% vs. 60.26%, p = 0.001; difference, 22.49% [95% CI, 8.5-18%] and per-protocol analysis (83.3% vs. 62.75%, p = 0.002; difference, 20.55% [95% CI, 7.1-22.5%]). Both treatment regimens were well tolerated. CONCLUSION: Although the rate of eradication of H. pylori infection was significantly higher with the LOAD regimen than triple therapy, the efficacy was still suboptimal, possibly because of fluoroquinolone resistance or the short course of treatment.

Novel pulmonary vascular imaging signs in COVID-19: pathophysiology, significance and management.

A growing body of evidence points to the frequent involvement of pulmonary microvessels in COVID-19 which was recognized first on CT, and subsequently demonstrated by clinical and pathological studies. Microvasculopathy occurring chiefly from endothelial and pericyte damage with resultant disruption of immune, thrombotic and renin-angiotensin-aldosterone balance leads to a constellation of clinical and biochemical derangements. Exploration of potential therapies directed at normalizing the vascular health can prove a major boon in the treatment of COVID-19.

Preoperative Staging of Gastric Cancer Using Computed Tomography and Its Correlation with Histopathology with Emphasis on Multi-planar Reformations and Virtual Gastroscopy.

BACKGROUND: Gastric cancer is the fifth most common cancer in the world. Preoperative staging of gastric cancer has assumed pivotal role in deciding appropriate management of gastric cancer with multi-detector computed tomography (MDCT) using hydro- and gaseous distension of stomach superseding endoscopic ultrasound in tumor (T) and nodal (N) staging. We undertook this study to evaluate the diagnostic accuracy of MDCT in the T and N staging of gastric cancer with an attempt to differentiate between early and advanced gastric carcinomas. METHODS: A total of 160 patients with endoscopically diagnosed and biopsy-proven gastric cancer were subjected to MDCT after adequate gaseous and hydro-distention of stomach. Multi-planar reformatted (MPR) as well as virtual gastroscopy images were also obtained. Gastric lesions were categorized into T1 to T4 stages with N staging from N0 to N3. Preoperative CT findings were correlated with histopathological findings. RESULTS: Overall diagnostic accuracy of T staging in our study was 82.5% (132/160) with an accuracy of 75% (120/160) for N staging. The diagnostic accuracy of CT for early gastric carcinoma in our study was 93.75% with high specificity of 96% but low sensitivity of 66.7%. CONCLUSION: MDCT using gaseous and hydro-distension of stomach is an excellent modality for near accurate preoperative T staging of gastric cancer. However, CT has a limited role in the N staging of gastric cancer. This study also suggested that the combined use of virtual gastroscopy and MPR images helps in better detection of early gastric cancers.

Chest CT features of coronavirus disease-19 (COVID-19) pneumonia: which findings on initial CT can predict an adverse short-term outcome?

OBJECTIVE: To study the spectrum of chest CT features in coronavirus disease-19 (COVID-19) pneumonia and to identify the initial CT findings that may have the potential to predict a poor short-term outcome. METHODS: This was a retrospective study comprising 211 reverse transcriptase-polymerase chain reaction (RT-PCR) positive patients who had undergone non-contrast chest CT. Prevalence, extent, pattern, distribution and type of abnormal lung findings were recorded. Patients with positive CT findings were divided into two groups; clinically stable (requiring in-ward hospitalization) and clinically unstable [requiring intensive care unit (ICU) admission or demised] based on short-term follow-up. RESULTS: Lung parenchymal abnormalities were present in 42.2% (89/211) whereas 57.8% (122/211) cases had a normal chest CT. The mean age of clinically unstable patients (63.6 ± 8.3 years) was significantly different from the clinically stable group (44.6 ± 13.2 years) (p-value < 0.05). Bilaterality, combined involvement of central-peripheral and anteroposterior lung along with a higher percentage of the total lung involvement, presence of crazy paving, coalescent consolidations with air bronchogram and segmental pulmonary vessel enlargement were found in a significantly higher proportion of clinically unstable group (ICU/demised) compared to the stable group (in-ward hospitalization) with all p values < 0.05. CONCLUSION: Certain imaging findings on initial CT have the potential to predict short-term outcome in COVID-19 pneumonia. Extensive pulmonary abnormalities, evaluated by combined anteroposterior, central-peripheral and a higher percentage of the total lung involvement, indicate a poor short-term outcome. Similarly, the presence of crazy paving pattern, consolidation with air bronchogram and segmental vascular changes are also indicators of poor short-term outcome. ADVANCES IN KNOWLEDGE: Certain findings on initial CT can predict an adverse short-term prognosis in COVID-19 pneumonia.

Clinicoradiological course in coronavirus disease-19 (COVID-19) patients who are asymptomatic at admission.

OBJECTIVE: The study aimed to describe the clinical and imaging course of reverse transcriptase polymerase chain reaction) confirmed coronavirus disease (COVID-19) patients who are asymptomatic at admission. METHODS: This was a retrospective observational study. Severe acute respiratory syndrome coronavisrus-2 (SARS-CoV-2) positive cases that were asymptomatic at admission were retrospectively enrolled. Specific clinical information, laboratory test results, chest CT imaging features and outcome data during hospital stay were collected and analyzed. RESULTS: 137 non-consecutive asymptomatic patients with reverse transcriptase polymerase chain reaction confirmed COVID-19 were enrolled in the present study. On admission, patients had no symptoms but chest CT findings were present in 61/137 (44.5%). Ground glass opacity (48, 78.7%) followed by ground glass opacity with crazy-paving pattern (9, 14.7%) were the commonest type of opacities with posterior, peripheral predominance and lower zone predilection. Among the initial CT positive group of 61 patients, follow-up imaging revealed progression of pulmonary opacities in 13/61 (21.4%), complete resorption in 21/61 (34.4%), partial resolution in 22/61 (36%) and no change in 5/61 (8.2%). The patients in progression group (54 ± 19.7 years) were older and had higher frequency of co-morbidities (46.2%) compared to the other three groups (10.4%). The patients in progression group had a significantly higher C-reactive protein, higher lactate dehydrogenase and lower lymphocyte count than the other groups (all p-values < 0.05). The duration of hospital stay was longer in the progression group (27.1 ± 11.4 days) compared to the other three groups (16.12 ± 5.8) (p =< 0.05). CONCLUSION: Nearly half of the asymptomatic cases with confirmed COVID-19 had abnormal chest CT imaging. Asymptomatic infections can have a variable clinicoradiological course. Clinically, some recover without developing symptoms, some present few mild symptoms whereas some deteriorate. Similarly, imaging follow-up may reveal resolution (partial or complete), progression or no change. ADVANCES IN KNOWLEDGE: Clinicoradiological course of asymptomatic COVID-19 cases is diverse.

Spectrum of chest computed tomographic (CT) findings in coronavirus disease-19 (COVID-19) patients in India.

PURPOSE: To report the spectrum of chest computed tomographic (CT) imaging findings in coronavirus disease-19 (COVID-19) infected Indian patients. METHODS: This was a prospective descriptive study comprising 147 consecutive reverse transcriptase polymerase chain reaction (RT-PCR) positive patients who underwent CT chest. Prevalence, distribution, extent and type of abnormal lung findings were recorded. RESULTS: Among the total study cohort of 147 patients, 104 (70.7 %) were males and 43 (29.3 %) were females with mean age of 40.9 ±â€¯17.2 years (range 24-71 years). We observed lung parenchymal abnormalities in 51 (34.7 %) cases whereas 96 (65.3 %) RT-PCR positive cases had a normal chest CT. Only 12.2 % of the patients were dyspneic, 6.1 % had desaturation, 7.4 % had increased respiratory rate and 10.9 % had comorbidities. Among the patients with abnormal CT findings bilateral 39/51 (76.5 %), multilobar (88.2 %) lung involvement with a predominant peripheral and posterior distribution was commonly observed. With regards to the type of opacity, ground glass opacity (GGO) was the dominant abnormality found in all 51 (100 %) cases. Pure GGO was observed in 15 (29.4 %), GGO with crazy paving pattern was seen in 15 (29.4 %) and GGO mixed with consolidation was noted in 21(41.2 %). Peri-lesional or intralesional segmental or subsegmental pulmonary vessel enlargement was observed in 36 (70.6 %) cases. CONCLUSION: In this study population predominantly with mild symptoms and few comorbidities, two-thirds of RT-PCR positive patients had a normal chest CT; whereas the remaining patients showed typical findings of predominant GGOs with a bilateral distribution and peripheral predominance.

Cerebrotendinous xanthomatosis - A case report.

Cerebrotendinous xanthomatosis (CTX) is a rare autosomal recessive disorder resulting from a defective enzyme in bile acid synthesis pathway leading to neurological, ocular, vascular, and musculoskeletal symptoms from deposition of cholestanol and cholesterol in these tissues. We present clinical and imaging features of a 32-year-old female who presented with mental retardation, gait instability and swelling along posterior aspect of both ankles. Imaging studies were performed which revealed spectrum of CTX findings in brain and tendons. Subsequently the diagnosis was confirmed by biopsy and laboratory tests.

Renal hydatid cyst presenting as an intrarenal-pelvic mass.

Intra-renal-pelvic hydatid cyst is a rare manifestation of renal hydatid disease, as most of the renal hydatid cysts are based in the renal cortex. We present and discuss the clinical and radiological findings of a 55-year-old woman who presented with left flank pain, frequency, dysuria, and hydatiduria. She was thoroughly investigated radiologically, and the diagnosis of intra-renal-pelvic hydatid cyst was confirmed surgically.

Recurrent Unexplained Cystitis Due to an Ingested Foreign Body-An Extremely Rare Case.

We present the images of a 4-year-old male child with history of recurrent unexplained urinary tract infections which was found to be due to an ingested wooden foreign body which had perforated the small bowel into the posterior bladder wall. Such cases are very rare, usually due to domestic abuse or in patients with psychiatric illnesses. The adults usually report early but in children these cases go un-noticed. These patients may present with features of bowel obstruction, perforation, or hematochezia.1 as recurrent urinary tract infections seems to be the first case to be reported.

Evaluation of intracranial tuberculomas using diffusion-weighted imaging (DWI), magnetic resonance spectroscopy (MRS) and susceptibility weighted imaging (SWI).

OBJECTIVE:: The present study was aimed to evaluate patients of suspected intracranial tuberculomas with diffusion-weighted imaging (DWI), magnetic resonance spectroscopy (MRS) and susceptibility-weighted imaging (SWI). METHODS:: The present study evaluated 116 patients known or suspected of having central nervous system tuberculosis with advanced MRI techniques comprising of DWI, MRS and SWI in addition to the conventional MRI. RESULTS:: Apparent diffusion coefficient value of tuberculomas was not significantly different (p > 0.05) from apparent diffusion coefficient value of metastatic lesions and high-grade gliomas. MRS revealed that NAA/Cr and NAA/Cho ratios of tuberculomas were not significantly different (p > 0.05) from that of malignant brain lesions. However, Cho/Cr ratio of tuberculomas (1.36 ± 0.41) was significantly lower from that of malignant brain lesions (2.63 ± 0.99). SWI revealed a complete and regular hypointense peripheral ring in 42 cases of tuberculomas (58%) and in none of the malignant brain lesions. CONCLUSION:: DWI offers no clear advantage in differentiating tuberculomas from metastasis and gliomas. Tuberculomas may be differentiated from metastases and gliomas by their unique metabolite pattern on MRS. Presence of a complete and regular peripheral hypointense ring in SWI favors the diagnosis of tuberculomas. ADVANCES IN KNOWLEDGE:: The results from the present study suggest promising role of SWI in the discrimination of tuberculomas from metastatic brain lesions and gliomas with the presence of a complete and regular peripheral hypointense ring favoring the diagnosis of tuberculomas.