Archives of pathology & laboratory medicine
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Arch. Pathol. Lab. Med. · Jan 2018
ReviewIs There a Role for Programmed Death Ligand-1 Testing and Immunotherapy in Colorectal Cancer With Microsatellite Instability? Part I-Colorectal Cancer: Microsatellite Instability, Testing, and Clinical Implications.
- Colorectal cancer (CRC) represents the third most-common cancer in developed countries and is a leading cause of cancer deaths worldwide. Two recognized pathways contribute to CRC development: a more-common chromosomal instability pathway and, in 15% of cases, a deficient mismatch repair or microsatellite instability-high (MSI-H) pathway. The MSI-H CRC can be associated with somatic or germline mutations. Microsatellite status has been recognized as a prognostic and predictive biomarker. ⋯ - Although the TNM classification of malignant tumor stage remains the key determinant of CRC prognosis and treatment, there are considerable stage-independent, interindividual differences in clinical outcome and therapy response by patients. In addition, MSI-H status has an important role in CRC management and can be reliably detected by molecular and immunohistochemistry techniques and genetic testing. Efforts must be made to identify whether MSI-H CRC is germline or sporadic to ensure appropriate treatment, accurate prognosis, and risk assessment for relatives. Microsatellite status has been recognized as a good prognostic indicator and is predictive of a poor response to 5-fluorouracil-based chemotherapy and a good response to programmed death ligand-1 inhibitor pembrolizumab in metastatic/refractory MSI-H CRC.
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Arch. Pathol. Lab. Med. · Jul 2017
ReviewTransbronchial Cryobiopsy in Diffuse Lung Disease: Update for the Pathologist.
- Transbronchial cryobiopsy has recently been proposed as an alternative to surgical biopsy in the diagnosis of diffuse lung disease. ⋯ - Cryobiopsies are considerably larger than forceps biopsies and allow pattern recognition approaching that of a surgical lung biopsy in many cases. Artifacts associated with cryobiopsy are minimal. In comparison with surgical lung biopsies, the diagnosis rate with cryobiopsies is lower, in the neighborhood of 80%, versus higher than 90% for surgical lung biopsies. Cryobiopsy is proposed as an alternative to surgical lung biopsy and a technique that may appreciably decrease the number of patients who require surgical lung biopsy for diagnosis. This is important because the mortality from cryobiopsy is very small (0.1% to date) compared with surgical lung biopsy (1.7% for elective procedures and considerably higher for nonelective procedures).
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Arch. Pathol. Lab. Med. · Mar 2017
ReviewAppropriateness of Plasma Transfusion: A College of American Pathologists Q-Probes Study of Guidelines, Waste, and Serious Adverse Events.
- Plasma transfusion guidelines support patient care and safety, management of product wastage, and compliance; yet, there is little information across multiple institutions about use of and adherence to plasma transfusion guidelines. ⋯ - Most participating institutions are compliant with plasma transfusion guidelines based on published references, supported by appropriate testing. With transfusions for indications that lack evidence of efficacy and incidence of transfusion reactions, there is an ongoing role for transfusion service leaders to continue to update and monitor plasma transfusion practices.
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Arch. Pathol. Lab. Med. · Jan 2017
ReviewZika Virus Infection in Pregnancy, Microcephaly, and Maternal and Fetal Health: What We Think, What We Know, and What We Think We Know.
-The global epidemic of Zika virus (ZIKV) infection has emerged as an important public health problem affecting pregnant women and their infants. ⋯ -Recent advances in epidemiology, clinical medicine, pathology, and experimental studies have provided a great amount of new information regarding vertical ZIKV transmission and the mechanisms of congenital microcephaly, brain damage, and congenital Zika syndrome in a relatively short time. However, much work still needs to be performed to more completely understand the maternal and fetal aspects of this new and emerging viral disease.
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Arch. Pathol. Lab. Med. · Sep 2016
ReviewPathology in the Medical Profession?: Taking the Pulse of Physician Wellness and Burnout.
-In the past decades, physician wellness has diminished in every aspect of professional life. Burnout symptoms in the United States affect 30% to 68% of physicians overall-exceeding the levels of any other professional group. The ramifications of burnout present an underrecognized crisis in the health care system that carries the consequences of personal, professional, institutional, and societal costs. ⋯ -Many physicians learn to tolerate burnout symptoms despite negative personal consequences. Long-term work-related stress, however, may lead to the potential for negative effects on the quality of patient care, and to attrition. Interestingly, the factors that enhance physician fulfillment and those that may precipitate burnout symptoms are distinct. Optimization of physician well-being, therefore, requires tailored approaches in each of these 2 dimensions and is most likely to succeed if it includes approaches that are customized to career phase, physician specialty, and practice setting. Importantly, organization leaders must prioritize this issue and provide sustained support for wellness initiatives, to foster a culture that is conducive to physician well-being.