Yīyàn dàchéng 醫驗大成
Grand Compendium of Verified Cases by 秦昌遇 Qín Chāngyù (Jǐngmíng 景明, hào Guǎngyě xiānshēng 廣野先生, 1565–1644), of Sōngjiāng 松江.
About the work
A single-juǎn late-Míng casebook of the Sōngjiāng physician Qín Chāngyù, organised by syndrome with each case (“一人…”) set out paradigmatically — zhèng (presentation) + fāng (prescription) — in the classical Míng pre-clinical-narrative style. The cases are arranged by syndrome, opening with 衄血 (epistaxis / nose-bleeding), 咳血 (cough-blood), 咯血 (expectorated blood), and proceeding through internal-medicine and pediatric categories.
Prefaces
No transmitted preface in the hxwd source. The _000.txt opens directly with the first syndrome chapter.
Abstract
Qín Chāngyù 秦昌遇 (1565–1644), zì Jǐngmíng 景明, hào Guǎngyě xiānshēng 廣野先生, of Yúnjiān 雲間 (Sōngjiāng 松江, now Shànghǎi). One of the most important late-Míng physicians, principally remembered for his pediatric work KR3ek047 Xiǎoér ānyì jí 小兒按摩經 and his general-internal-medicine compendium KR3ec077 Yīzōng jīnjiàn jiǎncuō and other works. He is the same person whose pediatric casebook is preserved as KR3ep048 Yòukē yīyàn.
The Yīyàn dàchéng is the principal documentary record of Qín’s general-internal-medicine clinical practice. The prescriptive signature — careful zàngfǔ attribution (“足陽明之火 — fire of the Foot-Yáng-Míng (channel)”, “金極似火之病 — disease where Metal-overcome-by-Fire resembles fire-itself”), classical Sìdàjiā (LiúZhāngLǐZhū) syndrome-discrimination, and explicit invocation of canonical-medical maxims (“亢則害、承乃制”) — places the text squarely in the late-Míng gāngmù (canonical-comprehensive) tradition associated with the Wú-school and the Yúnjiān/Sōngjiāng medical milieu.
The opening Nǜxuè (nosebleed) cases display the zàngfǔ differential methodology in full: case 1 attributes the nose-bleed to gānhuǒ (liver-fire) from anger and uses Shēngdì + Niúxī + Zhīzǐ + Xuánshēn + Huánglián + Màidōng cooling-and-descending; case 2 attributes a hemorrhagic-deficiency state (“脈大如指”) not to heat but to fèiqìxū — “Pulse like a finger is not heat but vessel-qi deficiency” — and prescribes RénshēnHuángqíbǔfèi, with the explicit warning that cooling-cleansing here would violate the canonical principle of kàng zé hài, chéng nǎi zhì 亢則害、承乃制. This is a textbook display of Qín’s biànzhèng clinical sophistication.
The composition window 1590–1644 brackets Qín’s mature clinical career through to his death. The text appears to have been transmitted with substantial editorial intervention; some Chinese-medical bibliography traditions list it as a Qīng-period re-compilation, but the clinical-philosophical signature is unambiguously late-Míng.
Translations and research
No substantial secondary literature located.