Doppler evaluation of normal and abnormal placenta.

Doppler techniques are needed for the evaluation of the intraplacental circulation and can be of great value in the diagnosis of placental anomalies. Highly sensitive Doppler techniques can differentiate between the maternal (spiral arteries) and fetal (intraplacental branches of the umbilical artery) components of the placental circulation and assist in the evaluation of the placental functional units. A reduced number of placental functional units can be associated with obstetric complications, such as fetal growth restriction. Doppler techniques can also provide information on decidual vessels and blood movement. Abnormal decidual circulation increases the risk of placenta accreta. Doppler evaluation of the placenta greatly contributes to the diagnosis and clinical management of placenta accreta, vasa previa, placental infarcts, placental infarction hematoma, maternal floor infarction, massive perivillous fibrin deposition and placental tumors. However, it has a limited role in the diagnosis and clinical management of placental abruption, placental hematomas, placental mesenchymal dysplasia and mapping of placental anastomoses in monochorionic twin pregnancies. © 2021 International Society of Ultrasound in Obstetrics and Gynecology.

Reduced fetal growth velocity precedes antepartum fetal death.

OBJECTIVES: To determine whether decreased fetal growth velocity precedes antepartum fetal death and to evaluate whether fetal growth velocity is a better predictor of antepartum fetal death compared to a single fetal biometric measurement at the last available ultrasound scan prior to diagnosis of demise. METHODS: This was a retrospective, longitudinal study of 4285 singleton pregnancies in African-American women who underwent at least two fetal ultrasound examinations between 14 and 32 weeks of gestation and delivered a liveborn neonate (controls; n = 4262) or experienced antepartum fetal death (cases; n = 23). Fetal death was defined as death diagnosed at ≥ 20 weeks of gestation and confirmed by ultrasound examination. Exclusion criteria included congenital anomaly, birth at < 20 weeks of gestation, multiple gestation and intrapartum fetal death. The ultrasound examination performed at the time of fetal demise was not included in the analysis. Percentiles for estimated fetal weight (EFW) and individual biometric parameters were determined according to the Hadlock and Perinatology Research Branch/Eunice Kennedy Shriver National Institute of Child Health and Human Development (PRB/NICHD) fetal growth standards. Fetal growth velocity was defined as the slope of the regression line of the measurement percentiles as a function of gestational age based on two or more measurements in each pregnancy. RESULTS: Cases had significantly lower growth velocities of EFW (P < 0.001) and of fetal head circumference, biparietal diameter, abdominal circumference and femur length (all P < 0.05) compared to controls, according to the PRB/NICHD and Hadlock growth standards. Fetuses with EFW growth velocity < 10th percentile of the controls had a 9.4-fold and an 11.2-fold increased risk of antepartum death, based on the Hadlock and customized PRB/NICHD standards, respectively. At a 10% false-positive rate, the sensitivity of EFW growth velocity for predicting antepartum fetal death was 56.5%, compared to 26.1% for a single EFW percentile evaluation at the last available ultrasound examination, according to the customized PRB/NICHD standard. CONCLUSIONS: Given that 74% of antepartum fetal death cases were not diagnosed as small-for-gestational age (EFW < 10th percentile) at the last ultrasound examination when the fetuses were alive, alternative approaches are needed to improve detection of fetuses at risk of fetal death. Longitudinal sonographic evaluation to determine growth velocity doubles the sensitivity for prediction of antepartum fetal death compared to a single EFW measurement at the last available ultrasound examination, yet the performance is still suboptimal. © 2020 International Society of Ultrasound in Obstetrics and Gynecology.

Gleason scoring of prostatic carcinoma: impact of a web-based tutorial on inter- and intra-observer variability.

A total of 40 cases of prostatic adenocarcinomas were scored independently by four pathologists using the Gleason scoring system. After attending a web-based tutorial, the scoring was repeated by all. Consensus scores were obtained by simultaneous viewing of each case in a multihead microscope by all four pathologists. The scores were then compared. The pretutorial kappa (kappa) values ranged from 0.36 to 0.64 with an average of 0.459. After the tutorial, the kappa values ranged from 0.44 to 0.678 with the average kappa value increasing to 0.538, thus indicating an improvement in the agreement. The intraobserver agreement ranged from 0.435 to 0.788. We conclude that web-based tutorials with emphasis on images developed by experts serve to achieve an uniformity in reporting.

Clinical profile of carcinoma stomach at a tertiary care hospital in south India.

Carcinoma of the stomach is an important cause of mortality due to cancer. Carcinoma of the stomach is common in the southern region of India. We conducted a retrospective study on the epidemiological, clinical and survival patterns among the patients with carcinoma of the stomach, attending our hospital from June 19, 1995 to 1st January 2003. All the patients had histopathological confirmation of malignancy. Patients with gastrooesophageal junction lesions were excluded. Surgery was performed with curative as well as palliative intent in suitable patients. Chemotherapy has been incorporated in to the combined modality treatment in our hospital since July 2000. Postoperative chemotherapy comprised commonly used intravenous chemotherapy regimens, while oral chemotherapy (etoposide) was given to patients with disease not amenable to surgery, and those having poor performance and nutritional status. Oral etoposide was given in a dose of 50 mg/day for 14 days, in a 28 day cycle. Quality of life was assessed in the oral chemotherapy group. Out of the 1749 cancer patients seen during the period, 151 had gastric malignancy (8.6%). The median age was 55 years (range 15-84 years). The male to female ratio was 4:1. Adenocarcinoma was found in 148 patients, 2 had stromal tumours and 1 had non-Hodgkin lymphoma. Stage disribution was as follows; stage 2-1 patient , stage 3a-25, stage3b-49, stage4-3 1, Metastatic-28. Staging was not completed in 17 patients. Eighty-nine patients underwent surgery. Fifty-nine patients (39%) did not have surgery. One patient underwent polypectomy. Curative gastrectomy was performed in 11 patients. Thirty-nine patients underwent palliative tumour resection. Palliative gastro-jejunostomy for relief of symptoms was performed in 26 patients and exploratory laparotomy alone was perforaied in 13. Thirty-eight patients received chemotherapy. Out of these, only 2 patients had prior complete resection of the tumour and 36 received palliative chemotherapy. Intravenous chemotherapy was given to 17 patients and oral chemotherapy to 19; All the patients who received oral etoposide did not experience any toxicity. Patients who received intravenous chemotherapy (n=17) had the following toxicities: grade 3 emesis in 4 (20%), discoloration of the skin and nails in 6(31%), alopecia in 8 (50%), grade 3 diarrhoea in 3 (15%) and neutropenic fever in 4 patients (20%). Median survival for the cohort was 10.4 months. Quality of life parameters, such as sleep, appetite, weight, pain, work and general sense of ill health showed improvement. In conclusion, 8.6% of all cancers at our hospital were due to cancer of stomach, in whom distal gastric tumor were more frequent and most were non-resectable. Median survival was 10.4 months. Oral etoposide was found to be safe, improved the quality of life and may play a role in the palliative management of advanced carcinoma of the stomach.