Kafukufuku wasonyeza kuti okwera ndege, sitima, basi kapena galimoto omwe amakhala pansi kwa maola opitilira anayi ali pachiwopsezo chachikulu cha venous thromboembolism poyambitsa magazi a m'mitsempha kuti aime, zomwe zimapangitsa kuti magazi aziundana m'mitsempha. Kuphatikiza apo, okwera omwe amakwera maulendo angapo nthawi yochepa nawonso ali pachiwopsezo chachikulu, chifukwa chiopsezo cha venous thromboembolism sichimatha kwathunthu ndege ikatha, koma chimakhalabe chachikulu kwa milungu inayi.

Palinso zinthu zina zomwe zingawonjezere chiopsezo cha venous thromboembolism paulendo, lipotilo likuwonetsa, kuphatikizapo kunenepa kwambiri, kutalika kwambiri kapena kochepa (kupitirira 1.9m kapena pansi pa 1.6m), kugwiritsa ntchito njira zolerera zamlomo komanso matenda obadwa nawo m'magazi.

Akatswiri amati kusuntha kwa phazi mmwamba ndi pansi kungathandize minofu ya phazi kukhala yolimba komanso kupititsa patsogolo kuyenda kwa magazi m'mitsempha ya minofu ya phazi, motero kuchepetsa kuima kwa magazi. Kuphatikiza apo, anthu ayenera kupewa kuvala zovala zolimba paulendo, chifukwa zovala zotere zingayambitse magazi kuima.

Mu 2000, imfa ya mtsikana wa ku Britain yemwe adamwalira paulendo wautali ku Australia chifukwa cha matenda a m'mapapo inakopa atolankhani ndi anthu onse kuti adziwe za chiopsezo cha thrombosis mwa apaulendo omwe amafika paulendo wautali. WHO idayambitsa WHO Global Travel Hazards Project mu 2001, cholinga cha gawo loyamba chinali kutsimikizira ngati kuyenda kumawonjezera chiopsezo cha thrombosis ya m'mitsempha ndi kudziwa kuopsa kwa chiopsezocho; ndalama zokwanira zitapezeka, kafukufuku wachiwiri wa A pang'onopang'ono adzayambitsidwa ndi cholinga chopeza njira zodzitetezera zogwira mtima.

Malinga ndi bungwe la WHO, zizindikiro ziwiri zodziwika bwino za venous thromboembolism ndi deep vein thrombosis ndi pulmonary embolism. Deep vein thrombosis ndi vuto lomwe magazi amaundana kapena thrombus imapangika mu deep vein, nthawi zambiri m'munsi mwa mwendo. Zizindikiro za deep vein thrombosis makamaka ndi ululu, kupweteka, ndi kutupa m'dera lomwe lakhudzidwa.

Kutupa kwa magazi m'mitsempha ya m'munsi (kuchokera ku deep vein thrombosis) kumaduka ndikuyenda m'thupi lonse kupita m'mapapo, komwe kumayika ndikutseka kuyenda kwa magazi. Izi zimatchedwa pulmonary embolism. Zizindikiro zake ndi kupweteka pachifuwa ndi kuvutika kupuma.

Bungwe la WHO linati kutsekeka kwa magazi m'mitsempha kumatha kuzindikirika poyang'aniridwa ndi dokotala komanso kuchiritsidwa, koma ngati sikuchiritsidwa, kungakhale koopsa pa moyo.