Role of Magnetic Resonance Imaging in evaluation of tuberculous tubo ovarian mass

ObjectiveRole of Magnetic Resonance Imaging (MRI) in diagnosis of tuberculous tubo-ovarian (TO) mass.MethodsMRI was performed on 33 patients of tuberculous TO mass of female genital tuberculosis (FGTB).ResultsMean age, BMI, and parity was 27.5 ± 4.2 years, 22.7 ± 3.6 kg/m², and 0.27 ± 0.13. All patients (100%) had infertility; primary infertility (72.72%) and secondary infertility (27.23%) with mean 5.8 years. Abdominal/pelvic pain 33 (100%) cases, abdominal lump 4 (12.12%), adnexal mass 33 (100%). MRI findings showed pelvic masses 33 (100%), bilateral TO masses 11 (33.33%), cystic lesion 4 (12.12%), solid cystic lesion 3 (9.09%) with bilateral pyosalpinx 1 (3.3%), homogeneous content with ascites 1 (3.03%), rim enhancing lesion abutting pelvic wall in 1 (3.03%). Right adnexal mass 11 (33.33%), right adnexal cyst 2 (6.06%), right adnexal cystic mass in 1 (3.03%), right sided complex TO mass 1 (3.03%), right sided hydrosalpinx in 1 (3.03%) case, right sided TO mass in 4 (12.12%) cases and right sided para-ovarian cyst in 2 (6.06%). Left sided adnexal mass was seen in 11 (33.33%), cystic lesion in 1 (3.03%), ovarian cyst in 3 (9.09%) cases, left sided hydrosalpinx in 2 (6.06%), left ovarian cyst 2 (6.06%) cases, left sided ovarian cyst with encysted ascites 1 (3.03%) case and with left sided paraovarian cyst 2 (6.06%) case. Miscellaneous finding were generalised ascites (6.06%), encysted ascites (3.03%), pelvic (1; 3.03%) and mesenteric lymphadenopathy 1 (3.03%). Incidental finding were fibroid 3 (9.09%) and adenomyosis 1 (3.03%) case.ConclusionMRI appears to be useful diagnostic modality for tuberculous TO masses where differential diagnosis is malignancy but molecular diagnosis remains the gold standard.     

An evaluation of Composite Reference Standard (CRS) for diagnosis of Female Genital Tuberculosis

BackgroundFemale genital tuberculosis (FGTB) is a common cause of infertility in developing countries. Its diagnosis is difficult due to its paucibacillary nature, with no single test having high sensitivity and specificity. This study is to share the experience of using Composite Reference Standard (CRS) for the diagnosis of FGTB.MethodsThis is a prospective study conducted between September 2017 to June 2019, over 100 infertile females found to have FGTB on composite reference standard which consisted of acid-fast bacilli on microscopy or culture, histopathological evidence of epithelioid granuloma, positive gene Xpert on endometrial sample or definite or probable finding of FGTB on laparoscopy.ResultsA total of 100 infertile women (78% primary, 22% secondary) found to have FGTB on CRS were enrolled in this study. Mean age, body mass index, parity and duration of infertility were 28.2 years, 23.17 kg/m², 0.24 ± 0.12 and 2.41 years respectively. Various symptoms were scanty menses (16%), irregular cycle (7%), dysmenorrhea (11%), pelvic pain (11%). Various signs were vaginal discharge (65%), adnexal mass (6%), tubo-ovarian mass on ultrasound (15%), abnormal hysterosalpingography findings (57.14%), positive polymerase chain reaction test (65%) and abnormal hysteroscopy (82.2%). The positive findings on CRS were positive AFB on microscopy or culture (3%), positive gene Xpert (28%) (done in some cases), epithelioid granuloma on histopathology (13%), definite findings on laparoscopy like tubercles, caseous nodules and beaded tubes in (57.19%) patients while probable findings of FGTB like straw colored fluid in POD, extensive dense pelvic, peri-tubal, peri-ovarian adhesions; hydrosalpinx; tubo-ovarian mass; thick fibrosed tubes; mid tubal block; peri hepatic adhesions (Fitz Hugh Curtis Syndrome); hyperemia of tubes/blue uterus on chromotubation were seen in (48.8%) patients. All patients found to be positive on CRS were given 6 months of anti-tubercular therapy.ConclusionThis study demonstrates the high reliability of use of composite reference standard for diagnosis of FGTB.     

Hysteroscopic observations in 348 consecutive cases of female genital tuberculosis: A prospective study

Study objectiveTo evaluate the hysteroscopic findings in female genital tuberculosis.DesignIt was a prospective study of hysteroscopic findings performed on 348 cases of female genital tuberculosis (FGTB).SettingIt was a prospective cross-sectional study in a tertiary referral centre.PatientsA total of 348 patients with infertility with FGTB on various tests.InterventionA total of 348 patients of infertility found to have FGTB on various investigations were enrolled in the study. A detailed history was taken. Clinical examination, endometrial sampling and diagnostic laparoscopy were performed was also performed in selected cases. All patients underwent hysteroscopy as part of evaluation for infertility and tuberculosis (TB) findings.Measurements and main resultsThe mean age, parity, body mass index and duration of infertility was 28.2 years, 0.31,23.1kg/m² and 3.44 years respectively. Infertility was primary in 81.03% and secondary in 18.96% cases. Diagnosis of FGTB was made by endometrial aspirate findings of positive AFB on microscopy (4.02%), positive culture (4.88%), positive PCR (83.90%), epithelioid granuloma (14.65%), positive AFB on microscopy or culture of peritoneal cytology (1.14%) or epithelioid granuloma on peritoneal biopsy (1.72%), definitive findings of TB on laparoscopy (41.95%) or probable findings of TB on laparoscopy (58.05%). Various hysteroscopic findings observed were normal findings (28.16%), pale endometrial cavity (54.31%), features of active TB (7.47%), features of chronic TB (19.54%), features of TB sequelae like obstructed ostia (both ostia in 13.79%, one ostia 14.94%, periostial fibrosis; (bilateral 4.59%, unilateral 5.17%), endometrial glands atrophy (12.35%), small shrunken cavity (6.32%), distorted cavity (5.17%), various grades of intrauterine adhesions (29.88%). Hysteroscopy in FGTB was associated with increased difficulties and complications like failed procedures, difficult visualisation, false passage and uterine perforation.ConclusionHysteroscopy is useful modality to detect endometrial TB but is associated with increased difficulty and complications.     

Sharma's parachute sign a new laparoscopic sign in abdomino pelvic tuberculosis

AimsTo demonstrate a new laparoscopic sign “Sharma's Parachute sign” in abdominopelvic tuberculosis in women with infertility.MethodsA total of 104 women who were diagnosed to have abdominopelvic tuberculosis, on endometrial sampling or on laparoscopy were enrolled in this ongoing study on tuberculosis in infertility. A new laparoscopic “Sharma's parachute sign” was looked for in these cases on laparoscopy.ResultsThe mean age, pairty and duration of infertility was 27.6 years, 0.58 and 4.1 years respectively. Menstrual dysfuction were common especially hypomenorrhoea (34.61%), oligomenorrhoea (36.53%) along with constitutional symptoms and abdomino pelvic pain or lump. Diagnosis of abdominopelvic tuberculosis was made by identification of acid fast bacilli (AFB) on microscopy or culture of endometrial aspirate or peritoneal biopsy or positive gene Xpert or positive polymerase chain reaction (PCR) or histopathological demonstration of epithelioid granuloma on endometrial or peritoneal biopsy, various laparoscopic findings on pelvic and abdominal organs were tubercles and shaggy areas (white deposits, caseous nodules encysted ascites, abdominal and pelvic adhesions, tubal findings (hydrosalpinx, pyosalpinx, beaded or calcified tubes). A new “Sharma's parachute sign”in which ascending colon was totally adherent to anterior abdominal wall with its mesocolon looking like an open parachute with small caseous nodule was seen in 11 (10.5%) cases.ConclusionDiagnostic laparoscopy is an important investigation for abdominopelvic tuberculosis showing various adhesions including new parachute sign.     

Evaluation of implantation markers and immune cell infiltration in endometrial biopsy of female genital tuberculosis

BackgroundFemale genital tuberculosis (FGTB) causes infertility in a significant number of females. The immunological impact of tuberculosis on endometrium in infertile females has not been studied before. The present study was designed to evaluate markers related to infiltrating immune cells and implantation in endometrial aspiration from infertile females and correlate with conventional tests and polymerase chain reaction (PCR) for tuberculosis (TB).MethodsIt was a prospective cohort study with 385 patients out of which IHC was done in 306 over a period of 3 years from 2013 to 2016 in a tertiary care hospital. Women with infertility, 20–35 years of age, without history of pulmonary TB or intake of antitubercular therapy were included. Endometrial samples were subjected to PCR for TB along with microbiological and histological examination for TB. Immunohistochemistry for CD45, CD3, CD20, CD4, CD8, CD68, CD138, Interferon gamma, Interleukin 10 (IL-10) and implantation markers MUC1 and Notch 1 were done on the endometrial samples along with 25 control subjects.ResultsConventional tests for tuberculosis like staining for acid fast bacilli (AFB), granuloma on histology or culture positivity were seen in 2.61% (6/306; 1.96% had granulomas, 1/306; 0.32% was AFB positive, 2/306; 0.6% were liquid culture positive). PCR was positive in 190/306 (62.09%). CD3, CD20, CD45, CD68, CD4, CD8 and CD 138 expressing infiltrating cells were not significantly related to PCR positive cases. Interferon gamma expressing lymphocytes were significantly higher (38.94%) in PCR positive endometria compared to 26.72% in the PCR negative (p = 0.04). Notch ?1 expression correlated significantly with the occurrence of pregnancy. A trend towards high intensity expression of Notch1 was seen in PCR negative cases. MUC-1 expression did not correlate with pregnancy although interferon gamma expression was significantly related to low intensity MUC1 expression.ConclusionsImmunohistochemical markers are not reliable tests in diagnosis of FGTB. Notch 1 expression though showing correlation with pregnancy has to be further evaluated with a panel of other implantation markers.Study fundingIndian Council of Medical Research, New Delhi, India.     

Biliary plastic stent does not influence the accuracy of endoscopic ultrasound-guided sampling of pancreatic head masses performed with core biopsy needles

ObjectiveWhile the presence of biliary stent significantly decreases the accuracy of endoscopic ultrasound (EUS) for pancreatic head cancer staging, its impact on the EUS-guided sampling accuracy is still debated. Furthermore, data on EUS-fine needle biopsy (EUS-FNB) using core biopsy needles in patients with pancreatic mass and biliary stent are lacking. The aim of this study was to evaluate the influence of biliary stent on the adequacy and accuracy of EUS-FNB in patients with pancreatic head mass.MethodsAll patients who underwent EUS-guided sampling with core needles of solid pancreatic head masses causing obstructive jaundice were retrospectively identified in a single tertiary referral center. Adequacy, defined as the rate of cases in which a tissue specimen for proper examination was achieved, with and without biliary stent, was the primary outcome measure. The diagnostic accuracy and complication rate were the secondary outcome measures.ResultsA total of 130 patients with pancreatic head mass causing biliary obstruction were included in the study: 74 cases of them were sampled without stent and 56 cases with plastic stent in situ. The adequacy was 96.4% in the stent group and 90.5% in the group without stent (p = 0.190). No significant differences were observed for sensitivity (88.9% vs. 85.9%), specificity (100% for both groups), and accuracy (89.3% vs. 86.5%) between those with and without stent, respectively. The accuracy was not influenced by the timing of stenting (<48 h or ≥48 h before EUS). No EUS-FNB related complications were recorded.ConclusionThe presence of biliary stent does not influence the tissue sampling adequacy, the diagnostic accuracy and the complication rate of EUS-FNB of pancreatic head masses performed with core biopsy needles.     

Demographic,clinical and etiological profile of pericardial effusion in India: A single centre experience

IntroductionPericardial effusion (PE) is a life-threatening condition. However, there are very few Indian studies which determined etiological distribution. The current retrospective observational study was carried out to assess etiological factors responsible for PE in a tertiary care centre in India.MethodsThe study enrolled consecutive 55 patients with the diagnosis of moderate to large PE as established by echocardiography between January 2018 and December 2018. The echocardiography guided percutaneous pericardiocentesis was performed by the standard procedure.ResultsAmongst the enrolled PE patients in the study, 30 (54.55%) were males and 25 (45.45%) were females, with the average age of 43.00 ± 15.54 years. In clinical assessment, tamponade was found in 52 (94.54%) patients. Tuberculosis was the most common etiology for PE (n=35, 63.64%) followed by hypothyroidism (n = 6, 10.9%), and malignancies (n = 4, 7.27%). Among 12.72% patients, the PE was of recurrent type. Additionally, no death or any complication was encountered during pericardiocentesis.ConclusionPericardial disease and effusion is a major cause of morbidity in India. Despite developments in the healthcare facilities, tuberculosis was the most common etiology for PE. Additionally, the raised number of hypothyroid and malignant PE cases demonstrates the changing etiological trends, similar to western countries.     

Role of laparoscopy in diagnosing genital tuberculosis in suspected women: A cross-sectional study from a tertiary care hospital in Northern India

This study was included 60 women with suspected genital tuberculosis, attending outpatient department of a tertiary care hospital. The aim was to evaluate the role and accuracy of laparoscopy in the diagnosis of genital tuberculosis. The patients were investigated for tuberculosis with Erythrocyte Sedimentation Rate, Montoux, chest X-ray, serum ELISA, CA125, ultrasonography, endometrial biopsy and laparoscopic biopsy. Culture or histopathology was taken as a gold standard for confirming the cases of genital tuberculosis. 30 patients were confirmed as positive. Comparison was made between the various diagnostic modalities. Baseline investigations like complete blood count, differential leukocyte count, ESR, Montoux, and some special tests like CA125 and serum ELISA were helpful in supporting the diagnosis in only some patients. The sensitivity, specificity, positive and negative predictive value of endometrial biopsy in diagnosing GT was 6.6%, 100%, 100% and 51.7% respectively. Laparoscopic gross visualization alone, staining, culture and histology were able to detect 86.6%, 33.3%, 50% and 63.3% of cases respectively. Many patients would have been missed if laparoscopy was not performed. It helps in macroscopic visualization of pelvic cavity and obtaining biopsies for ZN staining, culture and histopathology. This increases the pickup rate of positive cases and helps in confirmation of the diagnosis.     

What is the next step for gastric atypical epithelium on histological findings of endoscopic forceps biopsy?

BackgroundGastric atypical epithelium on endoscopic biopsy is borderline lesions between benign and malignant. Definitive management of this lesion remains debatable.AimsWe aimed to analyze the final histological diagnosis for atypical epithelium on endoscopic biopsy and to examine the discrepancy rate between the final histological diagnosis and the initial endoscopic assessment.MethodsThis retrospective study finally enrolled 24 cases proven atypical epithelium on initial histology of an endoscopic biopsy. Of 24 cases, endoscopic submucosal dissection (n = 22), operation (n = 1) and follow-up biopsy without endoscopic submucosal dissection (n = 1) were performed.ResultsOf the 24 cases, early gastric cancer (n = 15, 62%) and adenoma (n = 7, 30%) lesions were finally diagnosed in 22 cases. Age, sex, endoscopic results and number of biopsy did not significantly influence the result of final outcome. Between the initial endoscopic assessment and the final histological diagnosis, 12 cases (50%) showed a concordant diagnosis, but eight (33%) and four cases (17%) showed upgraded and downgraded diagnoses, respectively.ConclusionsOf atypical epithelium cases, the rate of malignant and premalignant lesions was 92% and it was difficult to distinguish between malignant and benign lesions using the initial endoscopic findings. Therefore, endoscopic submucosal dissection can be considered in patients with atypical epithelium on endoscopic biopsy.     

Predictors of Rehospitalization in Patients Admitted With Heart Failure in Abeokuta,Nigeria: Data From the Abeokuta Heart Failure Registry

ObjectiveWe sought, for the first time, to examine the rate and predictors of hospital readmission in patients discharged after an episode of heart failure (HF) in Nigeria.MethodsThis was a hospital-based, prospective, observational study that used the data from the Abeokuta HF Registry.ResultsOverall, 1.53% (95% confidence interval [CI] 0.58–4.02) and 12.2% (95% CI 8.88–16.8) of patients were re-hospitalized at least once within 30 days and 6 months, respectively (5.3% had multiple readmissions); the latter comprised 21/138 men (15.2%) and 11/124 (8.9%) women. A total of 11 (4.2%) died (all of whom had been rehospitalized). Worsening HF (24 cases, 75%) was the commonest reason for readmission. Among others, factors associated with rehospitalization included presence of mitral regurgitation (odds ratio [OR] 2.37, 95% CI 1.26–4.46), age ≥60 years (OR 2.04, 95% CI 0.96–3.29), presence of tricuspid regurgitation (OR 1.77, 95% CI 0.86–3.61), and presence of atrial fibrillation (OR 1.34, 95% CI 0.59–3.03). However, on an adjusted basis, only female sex (adjusted OR 0.33, 95% CI 0.14–0.79; P = .014 vs male) and body mass index <19 kg/m² (adjusted OR 3.74, 95% CI 1.15–12.16; P = .028 vs ≥19 kg/m²) were independent correlates of readmission during 6 months' follow-up.ConclusionsHF rehospitalization within 6 months' follow-up occurred in ∼12% of our cohort living an environment where HF etiology is predominately nonischemic and the HF population is relatively younger. Higher rates of readmission were noted in those with older age, lower body mass index, low literacy, lower serum sodium level, and presence of atrial fibrillation, renal dysfunction, and valvular dysfunction.     

A comparison of the antegrade core trap and reverse bevel needles for EUS-guided fine-needle biopsy sampling of liver mass: a prospective randomized cross over study

BackgroundData on the use of EUS-guided fine-needle biopsy (EUS-FNB) of solid liver mass (SLM) for pathology is limited.MethodsTo prove superiority of the diagnostic rate of the newly designed modified Menghini-type needle with a beveled side-slot near the needle tip with slot cutting edge directed 20-gauge antegrade bevel (group A) over the original 22-gauge reverse bevel (group B) for EUS-guided fine-needle biopsy (EUS-FNB) of solid liver mass (SLM) in a prospective crossover randomized controlled trial.ResultsThe overall diagnostic accuracy rate of the 52 passes was 86.5% (45/52) and of group A versus B were 88.5% (23/26) versus 84.6% (22/26), respectively, p = 0.858. Tissue adequacy levels of both groups were not significantly different (grade A: B: C = 18:6:2 versus 16:7:3), p = 0.839). Grading of blood contamination of both groups was not significantly different. However, it was found that the group-A needles could biopsy tissue of significantly longer length than that of the group B; 1.3 cm (SD = 0.76) versus 0.8 cm (SD = 0.54); p = 0.007.ConclusionThe use of EUS-FNB of SLM is highly effective with similar levels of efficacy and number of adverse events between both types of needles.The trial registration numberThai Clinical Trial Registration No. TCTR2018081002.     

Clinical,laboratory and evolutionary features of abdominal tuberculosis in comparison with other forms of extrapulmonary tuberculosis

Background/objectivesTuberculosis is a multisystem disease that might affect any organ. Abdominal tuberculosis (ABT) represents 5–17% from all extrapulmonary tuberculosis (EPT) sites. We aimed to study the clinical, laboratory and evolutionary features of ABT cases and to identify predictive factors associated with ABT.MethodsWe conducted a retrospective study including all patients hospitalized in the infectious diseases department for EPT between 1991 and 2019. We studied the characteristics of ABT cases, and we compared them with other EPT cases.ResultsWe identified 519 patients with EPT, among whom 86 (16.6%) patients had ABT. There were 58 females (67.4%). Peritoneal tuberculosis was the most common clinical form of ABT (68.6%), followed by intestinal tuberculosis (18.6%). Patients aged 60 years and above were significantly less affected with ABT (odds ratio (OR) = 0.2; p = 0.001). The revealing systemic symptoms including fever (OR = 2.04; p = 0.006), weight loss (OR = 2.5; p < 0.001) and anorexia (OR = 1.7; p = 0.021) were significantly more frequent among ABT patients. Inflammatory markers including C-reactive protein levels (37 [10–89] mg/l vs 10 [4–57] mg/l; p < 0.001) and erythrocyte sedimentation rates (43 [15–95] mm/h vs 27 [15–60] mm/h; p = 0.044) were significantly higher among ABT cases. Multivariate logistic regression analysis showed that anorexia (adjusted OR (AOR) = 1.9; p = 0.015) and pulmonary involvement (AOR = 3.3; p = 0.002) were independent predictors of higher rate of ABT. Concomitant involvement of neuro-meningeal (AOR = 0.18; p = 0.001) and osteo-articular (AOR = 0.2; p = 0.01) sites, 40–59 (AOR = 0.2; p < 0.001) and ≥60 (AOR = 0.2; p < 0.001) age groups as well as hemoglobin rate (AOR = 0.7; p < 0.001) were independently associated with lower rate of ABT.ConclusionsAnorexia and pulmonary involvement were independent predictors of higher rate of ABT. Concomitant involvement of neuro-meningeal and osteo-articular sites, 40–59 and ≥60 age groups and hemoglobin rate were independently associated with lower rate of ABT.     

Effect of pulmonary hypertension on outcome of pulmonary tuberculosis

BackgroundThis study performed at the National Research Institute of Tuberculosis and Lung Disease, Tehran, Iran, aimed to evaluate the effect of concomitant pulmonary hypertension on the outcome of pulmonary tuberculosis.MethodsNew cases of pulmonary tuberculosis were recruited for the study. Pulmonary hypertension was defined as systolic pulmonary arterial pressure ≥35 mm Hg estimated by transthoracic Doppler echocardiography. We assessed the relationship between pulmonary hypertension and mortality during the six-month treatment of tuberculosis.ResultsOf 777 new cases of pulmonary tuberculosis, 74 (9.5%) had systolic pulmonary arterial pressure ≥35 mm Hg. Ten of them (13.5%) died during treatment compared to 5% of cases with pulmonary arterial pressure less than 35 mm Hg (p = 0.007). Logistic regression analysis showed that pulmonary hypertension and drug abuse remained independently associated with mortality (OR = 3.1; 95% CI: 1.44–6.75 and OR = 4.4; 95% CI: 2.35–8.17, respectively).ConclusionA significant association was found between mortality and presence of pulmonary hypertension and drug abuse among new cases of pulmonary tuberculosis.     

Obstetrics outcome in pulmonary tuberculosis

BackgroundTo evaluate the maternal and perinatal outcome in pulmonary tuberculosis cases as compared to low risk pregnancies in a tertiary referral hospital.MethodsA total of 15 cases of pulmonary tuberculosis over a period of two years who delivered in our unit was studied in the retrospective study. The maternal and perinatal outcome in them was compared with 191 low risk pregnancies who delivered at the same time in the hospital after taking into account inclusion and exclusion criteria.ResultsThe mean age and mean parity was 25.73 ± 2.85 and 28.75 ± 3.11, 2.1 and 1.9 in the 2 groups. Symptoms of pulmonary tuberculosis were cough (100%), chest pain (80%), expectoration (100%), hemoptysis (33.3%), fever (93.33%), anorexia (86.66%) and loss of weight (80%). Symptoms in study patients were significantly more common in study patients. The presence of associated medical problems was similar in the 2 groups. The prevalence of oligoamnios, gestational diabetes mellitus, antepartum hemorrhage and intrahepatic cholestasis was similar in the 2 groups. Prevalence of preterm labor was 53.33% in study group which was significantly higher than in controls (8.9%). Risk of premature rupture of membrane was also significantly higher in the study groups (53.33%) as compared to control groups (8.9%). Mean gestational age was also significantly lower (36.2 weeks) in study group as compared to 38.6 weeks in control group. The incidence of cesarean delivery was similar in the 2 groups (26.66% vs 28.79%). The mean birth weights was 2308.6 gm in the study group as compared to 2707.56 gm in control group. Fetal growth restrictions and Respiratory distress syndrome in babies was significantly higher in study group than in control group. Low APGAR score (<8) was also higher (33.3%) in study group as compared to control group (2.61%).ConclusionPulmonary tuberculosis during pregnancy is associated with increased perinatal morbidity, low birth weight, poor APGAR and increased respiratory distress rates.     

Efficacy of endoscopic samplings during initial biliary drainage for cases of pancreatic head cancer: United diagnostic yields of multiple pathological samplings

Background/objectivesThe diagnostic ability of endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) has been fully studied; however, the efficacy of other endoscopic samplings (OESs) is less clear. The aim of this study was to examine the diagnostic efficacies of OESs for pancreatic head cancer (PHC).MethodsThe diagnostic efficacies of endoscopic samplings were retrospectively analyzed in 448 PHC cases and 63 cases of mass-forming pancreatitis (MFP) during initial transpapillary biliary drainage. The OESs included duodenal biopsy (118 PHCs and 50 MFPs), biliary biopsy (218 and 51) with cytology (368 and 53), and pancreatic duct biopsy (23 and 13) with cytology (56 and 43). EUS-FNA was conducted in a different session (149 and 62). Factors associated with OES sensitivity were analyzed. The sensitivity of biliary biopsy was compared between 1.95 mm and 1.8 mm forceps.ResultsCancer cells were confirmed in 87.9% of the EUS-FNA samplings and in 64.1% (268/418) obtained by combined OESs (average 1.7 OES types per case): 68.6% by duodenal biopsy, 59.6% by biliary biopsy, 32.6% by biliary cytology, 73.9% by pancreatic duct biopsy, and 33.9% by pancreatic duct cytology. No MFP cases revealed cancer by any sampling. OESs did not increase adverse events. Duodenal stenosis, serum bilirubin, tumor size, and pancreatic juice amounts were associated with OES sensitivity. Biliary biopsy had the same sensitivity with different forceps.ConclusionEUS-FNA was the most diagnostic protocol; however, OESs can be safely applied during the initial biliary drainage to reduce the demand for EUS-FNA while providing good diagnostic yields.     

The impact of diabetes mellitus on the pharmacokinetics of rifampicin among tuberculosis patients: A systematic review and meta-analysis study

Background and aimsDiabetes mellitus has a negative impact on the treatment outcome of tuberculosis, increasing the incidence of treatment failure and relapse. There is a scarcity of knowledge concerning the impact of diabetes mellitus on the pharmacokinetics of rifampicin. This study was conducted to evaluate the impact of diabetes mellitus on the pharmacokinetics of rifampicin among patients with tuberculosis.MethodsWe explored the Web of Science, Cochrane Library, PubMed, and Scopus databases for articles that reported the pharmacokinetic parameters of rifampicin in diabetic and nondiabetic patients with tuberculosis published until September 2020. Based on the presence or absence of heterogeneity, pooled estimates were calculated using a random or fixed effect model.ResultsSeven studies were relevant and included in this study. The Tmax of rifampicin increased in diabetic patients with tuberculosis compared with nondiabetic patients with tuberculosis (MD 0.84, 95% CI (0.32, 1.35), p = 0.002). No significant differences were detected in rifampicin Cmax (MD 0.18, 95% CI (?0.52, 0.88), p = 0.61), AUC0–24 (SMD -0.02, 95% CI (?0.34, 0.30), p = 0.90), Vd (MD -3.89, 95% CI (?11.17, 3.38), p = 0.29), CL (MD -0.13, 95%CI (?0.88, 0.61), p = 0.72), and MRT (MD 1.89, 95% CI (?0.03, 3.81), p = 0.05) between diabetic and nondiabetic patients with tuberculosis.ConclusionDiabetes mellitus increased the Tmax of rifampicin without further impact on other rifampicin pharmacokinetic parameters such as Cmax, AUC0–24, Vd, CL and MRT. Early therapeutic drug monitoring of rifampicin is necessary for diabetic tuberculosis patients.     

Brucellosis and tuberculosis: Clinical overlap and pitfalls

ObjectiveTo identify characteristic features of tuberculosis in patients with culture proven brucellosis.MethodsA retrospective analysis was performed on patients diagnosed with culture proven brucellosis between January and December 2011, based on review of their medical records. Patients with demonstrable co-infection with tuberculosis were excluded. Clinical features, laboratory parameters and tissue histopathology reports where available were noted.ResultsThirty-two patients with brucellosis were included in the study. Twenty-one (65.63%) patients had chronic fever, thirteen (40.63%) had a productive cough, while significant weight loss, evening rise of temperature and night sweats were reported by eight (25.00%), eleven (34.38%) and five (15.63%) patients respectively. Nine (28.13%) patients had at least three of these symptoms. Lymphadenopathy, hepatomegaly and splenomegaly were noted on examination in seven (21.88%), fifteen (46.88%) and twelve (37.50%) patients respectively. Eight (25.00%) patients had hepato-splenomegaly, of these only two had associated significant lymphadenopathy. Respiratory examination was normal in all patients. Elevated ESR greater than 50 mm/hr was seen in eight (25.00%), it was greater than 100 mm/hr in five (15.63%) patients. Hypergammaglobulinemia was seen in eight (25.00%) cases. Bone marrow biopsy showed non-caseating granulomas in three (9.38%) cases, lymph node biopsy showed granulomas in one case. Overall, three (9.38%) patients had known risk factors for tuberculosis, while six (18.75%) had risk factors for brucellosis.ConclusionsThere is a clear overlap between brucellosis and tuberculosis both in terms of clinical presentation and laboratory parameters. It is essential to carefully rule out tuberculosis in all cases of suspected or proven brucellosis before initiating antimicrobial therapy, in order to forestall development of drug-resistant tuberculosis.     

Comparison of different transbronchial biopsy sampling techniques for the diagnosis of peripheral pulmonary lesions with radial endobronchial ultrasound-guided bronchoscopy: A prospective study

BackgroundData regarding the transbronchial biopsy (TBB) techniques in radial endobronchial ultrasound (R-EBUS)-guided bronchoscopy are limited. The purpose of this study was to compare three R-EBUS-guided TBB techniques for the diagnosis of peripheral pulmonary lesions (PPLs).MethodsA prospective pilot study was conducted including 90 patients with positive bronchus sign PPLs, who underwent R-EBUS-guided TBB. TBB techniques were performed in all patients using small biopsy forceps with a guide sheath (GS). These samples were submitted for both cell block histology (CB) and conventional histology (SB). Standard biopsy forceps were used to collect further samples that were submitted for conventional histology (LB). The diagnostic yields of the three techniques were compared.ResultsThe mean diameter of the PPLs was 25.5 ± 8.2 mm and the final diagnoses included 70 malignant and 20 benign lesions. The overall diagnostic yield of R-EBUS-guided bronchoscopy was 82.2%. Although the difference was not statistically significant, CB provided the highest yield of the three TBB techniques: 68.9%, 65.6%, and 62.2% for CB, SB, and LB, respectively (P = 0.20). When the GS was removed and standard biopsy forceps were introduced, misplacement (detected by fluoroscopy) was observed in 24 cases, and LB provided a diagnosis in 11 cases. PPLs ≤20 mm were associated with misplacement (P = 0.003). After the exclusion of misplaced cases, the diagnostic yields were 69.7%, 71.2%, and 68.2% for CB, SB, and LB, respectively (P = 0.65).ConclusionsNeither the size of biopsy forceps nor the histology process affected the diagnostic yield of R-EBUS-guided bronchoscopy.