According to an advances in endoscopy report (Ross, WA. Gastroenterology Hepatology 2015; 11: 115-17), lower platelet thresholds are indicated for many endoscopic procedures. The author works at MD Anderson Cancer Center in Houston.
- “We feel that the traditional threshold of 50,000 platelets/microliter that many doctors adhere to or aim for should be put aside, and a lower platelet threshold of perhaps 25,000 or 30,000 platelets/microliter should be employed for endoscopic procedures, including biopsies.“
- “We found that therapeutic maneuvers could be performed to control bleeding.”
- “This change would require fewer platelet transfusions to prepare a patient for endoscopy.”
- Based on their published experience (Krishna SG, et al. “Saftey of endoscopic interventions in patients with thrombocytopenia.” Gastrointest Endosc 2014; 80: 425-34), the author notes that “polypectomy could probably be performed with a platelet count under 50,000/microliter, likely in the 30,000-40,000/microliter range, particularly if the polyp was small (<10 mm).” They caution that cold snare technique may be safer in this setting but is not suitable for larger polyps.
- Other preventative measures include stopping aspirin use, limiting the number and size of biopsies, and using non thermal means to help stop bleeding, such as clips or injections.
- “Performing an endoscopic procedure in a patient with an extremely low platelet count, such as 5000/microliter, is associated with a high risk of bleeding.”
“If the procedure is just a simple biopsy, a platelet count of 25,000/microliter to 30,000/microliter should suffice.”
Take-home message: While the data that the author references is derived from adults, it is likely that in pediatrics that endoscopy, if needed, can be performed in patients with platelet counts less than 50,000/microliter.