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The diagnosis of traumatic diaphragm injuries (TDI) can be difficult but is critical, as a delayed diagnosis can carry significant sequelae. TDIs can occur with both penetrating and blunt trauma and are often occult. Patients may vary in their presentation based on the extent and location of injury (right versus left hemidiaphragm), the presence and extent of abdominal viscera displacement, and the presence of other injuries. For this reason, the mechanism of injury (MOI) plays a crucial role in establishing a high index of suspicion for diaphragmatic injuries. The first report of diaphragm herniation was described in 1541 but it wasn't until a few centuries later in 1853 that Bowditch diagnosed the first antemortem diaphragmatic injury secondary to trauma. The first successful traumatic diaphragm injury repair was completed in 1888. The embryologic development of the diaphragm originates from the septum transversum during the 4th week of gestation. Additional tissue contribution is supplied by the esophageal patient has been fully resuscitated. An acute versus delayed diagnosis dictates the surgical approach, which can vary from an open to minimally invasive abdominal versus thoracic approach. Diaphragm repairs include primary suture repair, prosthetic mesh placement, and in worse cases, diaphragm reconstruction. The type of repair is also partially dependent on whether the diagnosis is acute or delayed. Occasionally, in extreme cases, reconstruction may be required in a staged approach with the use of myocutaneous and rotational muscle flaps to redevelop thoracoabdominal integrity.Postpartum thyroiditis (PPT) is a destructive autoimmune disease occurring in the first year after delivery in women without a history of thyroid disease prior to pregnancy. Postpartum thyroiditis could cause transient or permanent thyroid disease. Three clinical presentations have been suggested for postpartum thyroiditis are as follows (1) transient hyperthyroidism (32% of patients), (2) transient hypothyroidism (43% of patients), and (3) transient hyperthyroidism followed by hypothyroidism and then recovery, which is the classic form of PPT (25% of patients). Postpartum thyroiditis is an autoimmune disease and associated with the presence of antibodies to thyroid peroxidase (TPO). Chances of developing postpartum thyroiditis in pregnant women who have positive TPO antibodies early in pregnancy are 30% to 52%. Postpartum thyroiditis could occur after the loss of a pregnancy at 5 to 20 weeks gestation. During pregnancy level of TPO antibodies naturally decreases due to the immunosuppressed state of pregnancy. Panobinostat molecular weight Women who remain positive for TPO antibodies in the third trimesters of pregnancy will have an 80% chance of developing postpartum thyroiditis. Screening of high-risk women for developing postpartum thyroiditis, such as a positive test for antithyroid peroxidase antibody, history of postpartum thyroiditis, type 1 diabetes mellitus, is recommended by Endocrine Society clinical guidelines. High-risk women should be evaluated for serum TSH levels at three and six months postpartum.Epilepsy is a condition defined by the occurrence of two or more unprovoked seizures that happen at least 24 hours apart. These are typically associated with abnormal hypersynchronous discharges in the brain, resulting in clinical manifestations. An electroencephalogram (EEG) is a useful tool for recording the electrical activity from the cortex and the deeper brain structures. It is a useful tool for diagnosing and classifying various seizure types. Localization-related epilepsies, also known as focal epilepsies, refer to an abnormal neuronal activity arising from a localized focus and involve a limited portion of the cortex. When there is no associated impairment in consciousness, it is called a 'focal onset aware seizure' previously known as a simple partial seizure. When it is associated with impairment in consciousness, it is called a 'focal impaired awareness seizure,' earlier known as a complex partial seizure.Renal cell carcinoma (RCC) arises from the renal cortex or the renal tubular epithelial cells. It is classified into clear cell RCC (ccRCC), papillary RCC, and chromophobe RCC, accounting for about 85% of all the primary renal cancers. The other 15% constitutes for transitional cell carcinoma, Wilms tumor or nephroblastoma, tumors of the collecting ducts and renal sarcomas. They are heterogeneous diseases with different biology, genetics, and behavior. Overall, the incidence has been steadily increasing, and currently, it is the 7th most common cancer among men. Among the genitourinary cancers, RCC has the highest mortality rate. The increase in incidence could be attributed to incidental diagnosis. About 60% of the cases are detected incidentally.Herpetic infections have been well documented even in ancient Greek literature. Herpes viruses are large double-stranded DNA viruses. There are eight different types of herpes viruses affecting humans (human herpes virus (HHV)). Herpes simplex encephalitis is an acute or subacute illness associated with focal or global cerebral dysfunction caused by herpes simplex viruses belonging to either type 1(HSV-1) or type 2(HSV-2). The vast majority of herpes simplex encephalitis is caused by HSV-1, with HSV-2 constituting only less than 10%. Almost all of the herpes encephalitis beyond the neonatal period is caused by herpes simplex type 1(HSV-1), which is identified as the most common cause for fatal encephalitis, occurring in a sporadic and non-seasonal pattern across the globe. Herpes encephalitis in neonates could be either due to HSV-1 or HSV-2 though the latter is more common. HSV-2 can also cause encephalitis in immunocompromised patients. Herpes simplex 1 encephalitis (HSV-1) in adults is associated with significant morbidity and death despite treatment with antiviral therapy. Herpes simplex encephalitis is again a devastating disease in infants and children irrespective of treatment. Neonatal encephalitis caused by HSV-2 involves the brain more globally, and it results in more neurologic sequelae.Pulsus alternans, not to be confused with pulsus paradoxus or electrical alternans, is an arterial pulse with alternating strong and weak beats. Systolic pressures will vary from beat-to-beat as identified on physical exam and echocardiogram. Pulsus alternans is found in the setting of severe ventricular dysfunction and other forms of cardiac pathology. Variations of pulsus alternans include left ventricular alternans, right ventricular alternans, and biventricular alternans. The treatment and clinical outcomes for pulsus alternans vary depending upon the underlying causative etiology, though its presence generally suggests a poor prognostic outlook.
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