Sean Blackwell

All articles by Sean Blackwell


Placenta previa, previa 1. What every clinician should know Clinical features and incidence Placenta previa is when placenta overlies or is proximate to the internal os of the cervix. Complete previa covers the cervical os; partial previa partially covers the cervix but does not completely cross the internal cervical os; low-lying placenta is a placenta…


Nephrolithiasis, renal colic, kidney stones 1. What every clinician should know Lifetime risk for renal colic is 7% for U.S. women; peak age of occurrence is 35-45 y.o. Risk factors include white race, higher socioeconomic status, family history, prior history Recurrence rates after 1 st episode: 14%, 35%, and 52% at 1, 5, and 10…

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