NASA Astronaut Had The First Known Blood Clot In Space

(CNN) — When astronauts encounter a medical risk on the International Space Station 250 miles up from the Earth’s surface, it’s not exactly easy for a doctor to make a house call. So when NASA researchers suspected a blood clot in one of their astronauts during a long-duration stay on the space station last year, they had to act quickly to treat the unexpected risk. The blood clot was detected during a vascular study of 11 astronauts on the station to assess the effect of space on the internal jugular vein. In zero gravity, astronauts’ blood and tissue fluid shifts toward the head. The study involved nine men and two women with an average age of 46. The identities of the astronauts were not included in the study. A new assessment of the blood clot published Thursday in the New England Journal of Medicine. Six of the astronauts experienced stagnant or reverse blood flow, one had a blood clot and another was found to have a potential partial blood clot. None exhibited symptoms and the findings wouldn’t have been apparent without the study. Two months into a six-month mission, an ultrasound of one of the astronaut’s veins revealed a blood clot. The astronaut performed a second ultrasound, guided in real time from scientists and radiologists on the ground, to confirm the findings. The radiologists interpreted the results of the ultrasound immediately. This risk had never been spotted in an astronaut during spaceflight before, so the scientists ...
Source: WBZ-TV - Breaking News, Weather and Sports for Boston, Worcester and New Hampshire - Category: Consumer Health News Authors: Tags: Boston News Health Offbeat Syndicated CBSN Boston CNN International Space Station NASA Source Type: news

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CONCLUSION: Centrally placed tunnelled peripherally inserted central catheter is a promising alternative method, when conventional arm peripherally inserted central catheter placement is not feasible. It is an easy and safe procedure that can be performed under local anaesthesia. PMID: 32133909 [PubMed - as supplied by publisher]
Source: The Journal of Vascular Access - Category: Surgery Tags: J Vasc Access Source Type: research
Conclusions: This series suggests the use of antiplatelet or anticoagulant medication is not an absolute contraindication to fiducial marker placement in patients undergoing SBRT or IGRT for prostate cancer. These patients should be closely monitored after the procedure for bleeding complications. Practitioners may consider the patient's medical comorbidities, risk factors for thromboembolism, and overall functional status as there is no standardized protocol for discontinuing anticoagulant or antiplatelet therapy for fiducial marker placement.
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
This article describes the case study of the child and the findings of a detailed ultrasound examination.
Source: Journal of Ultrasound - Category: Radiology Source Type: research
This study aims to evaluate radiation exposure in patients with complete portal vein thrombosis (CPVT) or portal cavernoma (PC) undergoing transjugular intrahepatic portosystemic shunt (TIPS) creation using real-time ultrasound guidance for portal vein targeting.Materials and methodsThis is a single institution retrospective analysis. Between August 2009 and September 2018, TIPS was attempted in 49 patients with CPVT or PC. Radiation exposure (dose area product [DAP], air KERMA (AK) and fluoroscopy time [FT]), technical success, clinical success, complications and survival were analyzed.ResultsIn total, 29 patients had CPV...
Source: La Radiologia Medica - Category: Radiology Source Type: research
We reported a case of intermittent massive upper gastrointestinal bleeding in a 33-year-old man with cholangiocarcinoma who underwent surgical resection followed by chemoradiation. A portoduodenal fistula due to chronic duodenal ulceration was identified. The bleeding was successfully controlled by endoscopic ultrasound-guided coil placement through the duodenal bulb using the anchoring technique. Follow-up endoscopy and computed tomography scan showed multiple coil placements between a part of the portal vein and the duodenal bulb without any evidence of portal vein thrombosis. There were no complications, and bleeding di...
Source: Clinical Endoscopy - Category: Gastroenterology Tags: Clin Endosc Source Type: research
Publication date: March 2020Source: Journal of Vascular Surgery: Venous and Lymphatic Disorders, Volume 8, Issue 2Author(s): Daniel Myers, Patrick Lester, Reheman Adili, Angela Hawley, Laura Durham, Veronica Dunivant, Garrett Reynolds, Kiley Crego, Zoe Zimmerman, Suman Sood, Robert Sigler, William Fogler, John Magnani, Michael Holinstat, Thomas WakefieldAbstractObjectiveThere is an inter-relationship between thrombosis and inflammation. Previously, we have shown the importance of P-selectin in thrombogenesis and thrombus resolution in many preclinical animal models. The role of E-selectin has been explored in rodent models...
Source: Journal of Vascular Surgery: Venous and Lymphatic Disorders - Category: Surgery Source Type: research
Background: Current guidelines recommend individual risk stratification, chemoprophylaxis, and risk mitigation to prevent venous thromboembolism. However, the evidence for efficacy is lacking in plastic surgery outpatients. Anticoagulation can cause bleeding. Ultrasound technology offers a highly accurate screening method. Methods: A prospective study was undertaken among 1000 consecutive cosmetic surgery outpatients who were scanned at three times: before surgery, the day after surgery, and 1 week after surgery (inclusion rate, 93 percent). Intravenous sedation was used, with no muscle relaxation. Compression, Dopple...
Source: Plastic and Reconstructive Surgery - Category: Cosmetic Surgery Tags: Cosmetic: Original Articles Source Type: research
ConclusionsDVT was prevented with bemiparin, without significant bleeding increase nor adverse events; moreover, the cost of bemiparin is lower than enoxaparin. Bemiparin can be considered as alternative drug for DVT chemoprophylaxis in PRSx procedures.Level of Evidence IIIThis journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authorswww.springer.com/00266.
Source: Aesthetic Plastic Surgery - Category: Cosmetic Surgery Source Type: research
CONCLUSION: Using propensity score-matched analysis we showed that pharmacological thromboprophylaxis after EVLA seems to be equally effective with 3 days or 10 days of treatment with a similar success rate and safety profile. Undoubtedly, a large randomised control trial, ideally including a group without pharmacological thromboprophylaxis, is needed to draw more definitive conclusions on the optimal duration of pharmacological post-EVLA thromboprophylaxis. PMID: 31869428 [PubMed - in process]
Source: Swiss Medical Weekly - Category: General Medicine Authors: Tags: Swiss Med Wkly Source Type: research
Authors: James AH Abstract This is the obstetrician's view on 3 different clinical scenarios involving bleeding and thrombotic disorders. In the first scenario, an 18 year old with a history of heavy menstrual bleeding since menarche presents with abdominal pain and ultrasound findings suggestive of a hemorrhagic ovarian cyst. The association with an underlying bleeding disorder is recognized. The goals of management, which are controlling hemorrhage and preserving fertility, are stated. Ovarian suppression, the most effective method to prevent recurrent hemorrhagic ovarian cysts, is outlined. Long-term management ...
Source: Hematology ASH Education Program - Category: Hematology Tags: Hematology Am Soc Hematol Educ Program Source Type: research
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