Nā Hōʻailona ʻōnaehana hana Coagulation i ka wā hāpai


Mea kākau: Succeeder   

1. Ka manawa Prothrombin (PT):

ʻO ka PT e pili ana i ka manawa e pono ai no ka hoʻololi ʻana o ka prothrombin i thrombin, e alakaʻi ana i ka coagulation plasma, e hōʻike ana i ka hana coagulation o ke ala coagulation extrinsic. Hoʻoholo nui ʻia ka PT e nā pae o nā kumu coagulation I, II, V, VII, a me X i hana ʻia e ke ake. ʻO ke kumu coagulation koʻikoʻi ma ke ala coagulation extrinsic ʻo ia ka factor VII, ka mea e hana ai i ka hui FVIIa-TF me ka factor tissue (TF). , ka mea e hoʻomaka ai i ke kaʻina hana coagulation extrinsic. ʻOi aku ka pōkole o ka PT o nā wahine hāpai maʻamau ma mua o nā wahine hāpai ʻole. Ke emi nā factors X, V, II a i ʻole I, hiki ke hoʻolōʻihi ʻia ka PT. ʻAʻole ʻike ka PT i ka nele o kahi factor coagulation hoʻokahi. Hoʻolōʻihi nui ʻia ka PT i ka wā e hāʻule ai ka nui o ka prothrombin ma lalo o 20% o ka pae maʻamau a hāʻule nā ​​factors V, VII, a me X ma lalo o 35% o ka pae maʻamau. Ua hoʻolōʻihi nui ʻia ka PT me ka ʻole o ke kahe koko ʻē. ʻIke ʻia ka manawa prothrombin pōkole i ka wā hāpai i nā maʻi thromboembolic a me nā kūlana hypercoagulable. Inā ʻoi aku ka lōʻihi o ka PT ma mua o 3 kekona ma mua o ka kaohi maʻamau, pono e noʻonoʻo ʻia ka hōʻailona o DIC.

2. Ka manawa Thrombin:

ʻO ka manawa Thrombin ka manawa no ka hoʻololi ʻana o ka fibrinogen i fibrin, hiki ke hōʻike i ka maikaʻi a me ka nui o ka fibrinogen i loko o ke koko. Hoʻopōkole ʻia ka manawa Thrombin i nā wahine hāpai maʻamau i hoʻohālikelike ʻia me nā wahine hāpai ʻole. ʻAʻohe loli koʻikoʻi i ka manawa thrombin i ka wā hāpai. He ʻano koʻikoʻi nō hoʻi ka manawa Thrombin no nā huahana hoʻohaʻahaʻa fibrin a me nā loli i ka ʻōnaehana fibrinolytic. ʻOiai ua hoʻopōkole ʻia ka manawa thrombin i ka wā hāpai, ʻaʻole koʻikoʻi nā loli ma waena o nā wā hāpai like ʻole, e hōʻike ana hoʻi ua hoʻonui ʻia ka hoʻāla ʻana o ka ʻōnaehana fibrinolytic i ka hāpai maʻamau. , e kaulike a hoʻonui i ka hana coagulation. Ua hana ʻo Wang Li et al[6] i kahi noiʻi hoʻohālikelike ma waena o nā wahine hāpai maʻamau a me nā wahine hāpai ʻole. ʻOi aku ka pōkole o nā hopena hoʻāʻo manawa thrombin o ka hui wahine hāpai hope ma mua o ka hui kaohi a me nā hui hāpai mua a me waena, e hōʻike ana ua ʻoi aku ka kiʻekiʻe o ka helu kuhikuhi manawa thrombin i ka hui hāpai hope ma mua o ka PT a me ka thromboplastin hapa i hoʻāla ʻia. ʻOi aku ka koʻikoʻi o ka manawa (manawa thromboplastin hapa i hoʻāla ʻia, APTT).

3. APTT:

Hoʻohana nui ʻia ka manawa thromboplastin hapa i hoʻāla ʻia e ʻike i nā loli i ka hana coagulation o ke ala coagulation intrinsic. Ma lalo o nā kūlana physiological, ʻo nā mea coagulation nui i komo i ke ala coagulation intrinsic ʻo XI, XII, VIII a me VI, nona ka coagulation factor XII he mea nui i kēia ala. ʻO XI a me XII, prokallikrein a me ka excitogen kaumaha molekala kiʻekiʻe e komo pū ana i ka pae hoʻopili o ka coagulation. Ma hope o ka hoʻāla ʻana o ka pae hoʻopili, hoʻāla ʻia ʻo XI a me XII i kēlā me kēia manawa, a laila e hoʻomaka ana ke ala coagulation endogenous. Hōʻike nā hōʻike palapala i ka hoʻohālikelike ʻia me nā wahine hāpai ʻole, ua pōkole ka manawa thromboplastin hapa i hoʻāla ʻia i ka hāpai maʻamau i ka wā hāpai, a ʻoi aku ka pōkole o nā trimesters ʻelua a me ke kolu ma mua o nā mea i ka wā mua. ʻOiai i ka hāpai maʻamau, hoʻonui nā mea coagulation XII, VIII, X, a me XI e like me ka hoʻonui ʻana o nā pule gestational i ka wā hāpai, no ka mea ʻaʻole paha e loli ka coagulation factor XI i ka lua a me ke kolu o nā trimesters o ka hāpai ʻana, ʻo ka hana coagulation endogenous holoʻokoʻa I ka hāpai waena a me ka hopena, ʻaʻole maopopo nā loli.

4. Fibrinogen (Fg):

Ma ke ʻano he glycoprotein, hana ia i ka peptide A a me ka peptide B ma lalo o ka hydrolysis thrombin, a ma hope loa e hana i ka fibrin insoluble e hoʻōki i ke kahe koko. He kuleana koʻikoʻi ko Fg i ke kaʻina hana o ka hōʻuluʻulu platelet. Ke hoʻāla ʻia nā platelets, hoʻokumu ʻia ka fibrinogen receptor GP Ib/IIIa ma ka membrane, a hoʻokumu ʻia nā hōʻuluʻulu platelet ma o ka pilina o Fg, a ma hope loa e hoʻokumu ʻia ka thrombus. Eia kekahi, ma ke ʻano he protein reactive acute, ʻo ka hoʻonui ʻia ʻana o ka plasma concentration o Fg e hōʻike ana he hopena mumū i loko o nā kīʻaha koko, hiki ke hoʻopilikia i ka rheology koko a ʻo ia ka mea nui e hoʻoholo ai i ka viscosity plasma. Hoʻokomo pololei ia i ka coagulation a hoʻonui i ka hōʻuluʻulu platelet. Ke hana ʻia ka preeclampsia, piʻi nui nā pae Fg, a i ka wā e decompensated ai ka hana coagulation o ke kino, e emi ana nā pae Fg. Ua hōʻike ʻia kahi nui o nā haʻawina retrospective ʻo ka pae Fg i ka manawa e komo ai i ka lumi hānau ka hōʻailona koʻikoʻi loa no ka wānana ʻana i ka hanana o ka hemorrhage postpartum. ʻO ka waiwai wānana maikaʻi he 100% [7]. I ke kolu o ka trimester, ʻo ka plasma Fg maʻamau he 3 a 6 g/L. I ka wā e hoʻāla ʻia ai ke coagulation, pale aku ka plasma Fg kiʻekiʻe i ka hypofibrinemia clinical. Ke hiki i ka plasma Fg>1.5 g/L ke hōʻoia i ka hana coagulation maʻamau, i ka wā e emi ai ka plasma Fg ma mua o 1.5 g/L, a i nā hihia koʻikoʻi ʻo Fg ma mua o 1 g/L, pono e uku ʻia ka makaʻala i ka pilikia o DIC, a pono e hana ʻia ka loiloi dynamic. Ke kālele nei i nā loli bidirectional o Fg, pili ka ʻike o Fg i ka hana o thrombin a he kuleana koʻikoʻi i ke kaʻina hana o ka platelet aggregation. I nā hihia me ka Fg kiʻekiʻe, pono e uku ʻia ka makaʻala i ka nānā ʻana i nā hōʻailona e pili ana i ka hypercoagulability a me nā antibodies autoimmune [8]. Ua hoʻohālikelike ʻo Gao Xiaoli lāua ʻo Niu Xiumin [9] i ka ʻike plasma Fg o nā wahine hāpai me ka gestational diabetes mellitus a me nā wahine hāpai maʻamau, a ua ʻike ʻia ua pili pono ka ʻike o Fg me ka hana thrombin. Aia kahi ʻano i ka thrombosis.