成 短气者气急而短促似喘而非喘喘则张口抬肩短气只是气促不能相续似喘而不抬肩似呻吟而无痛也有责为实
者
(经曰短气腹满而喘有热潮此外欲解可攻里此短气之实者也)有责为虚者(经曰趺阳脉微而紧紧则为寒微则为虚微虚相
搏则为短气此短气之虚也)有在表者(经曰短气但坐以汗出不彻故也更发汗则愈与其风湿相搏汗出短气小便不利恶风者
甘草附子汤此邪在表而短气也)有在表者(经曰干呕短气汗出不恶寒此表解里未和十枣汤与太阳病医反下之短气烦躁懊
心中硬成结胸大陷胸汤此邪在里而短气也)治各有异大抵短气为实要略曰短气不足以息者实也又水停心下亦令短气要
略曰食少饮多水停心下微者短气学人察诸
表证 短气骨节痛不得屈伸汗出小便不利恶风身肿者为风湿宜甘草附子汤(方论见体痛)短气腹满胁痛其人若
脉弦
浮大外不解无汗嗜卧身黄小便难有潮热者小柴胡汤(论见胃实方见往来寒热)
里证 若表未解手足 然汗出或有潮热者宜大承气汤(方论见潮热)若表解心下痞硬干呕短气者宜十枣汤(方
见见
胁满痛)
汗不彻 短气烦躁若发汗不彻续微汗出不恶寒表证不罢面赤者为并病更发汗则愈(论见面赤)
下后 若下后心中懊 心中硬痛者用大陷胸汤(论见结胸)
诊 趺阳脉微而紧紧则为寒微则为虚微紧相搏则为短气坐而伏者短气也
附
陶 伤寒失于汗下或因汗下后虚令人气逆不相接续者名短气分虚实治之此与喘证不相类
吴 因汗吐下后元气虚弱脉来微虚气不能相接而短少者以人参益气汤凡阴证脉弱细沉而迟手足逆冷面上恶寒如
刀
刮口鼻之气难以布息而短者宜四逆汤加人参主之又食少饮多水停心下令人气短烦闷以茯苓甘草汤治之
成无己:短气表现为呼吸急促且短促,类似喘证但不是喘。喘证时患者张口抬肩,而短气仅仅是气息急促、不能连续接续,类似喘但不抬肩,类似呻吟但没有疼痛。有的将短气归责于实证(《内经》说:“短气伴腹部胀满和喘息,有潮热,这是表邪将要解除、可以攻里的征象,这种短气属于实证”)。有的将短气归责于虚证(《内经》说:“趺阳脉微细且紧,紧主寒,微主虚,微与紧相搏结则导致短气,这种短气属于虚证”)。有的病位在表(《内经》说:“短气仅因汗出不透彻所致,再次发汗即可痊愈;若与风湿相搏,出现汗出、短气、小便不利、恶风者,用甘草附子汤治疗,这是邪气在表导致的短气”)。有的病位在里(《内经》说:“干呕、短气、汗出、不恶寒,这是表证已解但里气未和,用十枣汤治疗;太阳病医生误用下法后出现短气、烦躁、心中懊憹、心下硬,形成结胸,用大陷胸汤治疗,这是邪气在里导致的短气”)。治疗方法各不相同。大抵而言,短气多属实证,《金匮要略》说:“短气呼吸不足以息的是实证”。另外,水饮停聚在心下也会导致短气,《金匮要略》说:“饮食少而饮水多,水饮停聚在心下,轻者表现为短气”。学者需仔细辨别。
表证:短气伴骨节疼痛、屈伸不利、汗出、小便不利、恶风、身体浮肿的,属于风湿,宜用甘草附子汤(方论见“体痛”条)。短气伴腹部胀满、胁痛,患者若脉弦、浮大,表证未解、无汗、嗜睡、身黄、小便困难、有潮热的,用小柴胡汤(论见“胃实”,方见“往来寒热”条)。
里证:如果表证未解,手足濈然汗出或有潮热的,宜用大承气汤(方论见“潮热”条)。如果表证已解,心下痞硬、干呕、短气的,宜用十枣汤(方见“胁满痛”条)。
汗出不彻:短气、烦躁,如果发汗不彻底,随后微微出汗、不恶寒、表证未罢、面色赤红的,属于并病,再次发汗即可痊愈(论见“面赤”条)。
下法后:如果泻下后心中懊憹、心下硬痛的,用大陷胸汤(论见“结胸”条)。
诊法:趺阳脉微细且紧,紧主寒,微主虚,微紧相搏则导致短气。坐位时身体前伏的,是短气的表现。
附录:
陶华:伤寒失于发汗或攻下,或因汗下后正气虚弱,导致气逆不相接续的,称为短气,需分虚实进行治疗。这与喘证不同。
吴谦:因汗、吐、下后元气虚弱,脉来微细虚弱,气不能相接而短少的,用人参益气汤。凡是阴证脉弱、细、沉、迟,手足逆冷,面上恶寒如刀刮,口鼻之气难以布散呼吸而短的,宜用四逆汤加人参主治。另外,饮食少而饮水多,水饮停聚在心下,令人气短烦闷的,用茯苓甘草汤治疗。
Cheng Wuji: Shortness of breath (Duan Qi) is characterized by rapid and shallow breathing, resembling panting but not true panting. In panting (Chuan), the patient opens their mouth and raises their shoulders; in shortness of breath, there is merely rapid breathing that cannot continue smoothly, resembling panting without raising the shoulders, or resembling groaning without pain. Some attribute shortness of breath to excess patterns (The Classic states: "Shortness of breath with abdominal fullness and panting, accompanied by tidal fever, indicates that the exterior pathogen is about to resolve and interior purgation can be applied; this type of shortness of breath is due to excess"). Some attribute it to deficiency patterns (The Classic states: "When the Dubyang pulse is faint and tight, tight indicates cold, and faint indicates deficiency; when faint and tight interact, shortness of breath results; this type of shortness of breath is due to deficiency"). Some cases are located in the exterior (The Classic states: "Shortness of breath caused solely by incomplete sweating will heal with further diaphoresis; if combined with wind-dampness, presenting with sweating, shortness of breath, difficult urination, and aversion to wind, Gancao Fuzi Tang [Licorice and Aconite Decoction] should be used; this is shortness of breath due to pathogens in the exterior"). Some cases are located in the interior (The Classic states: "Dry retching, shortness of breath, sweating, and absence of aversion to cold indicate that the exterior has resolved but the interior is disharmonious; Shizao Tang [Ten Jujube Decoction] should be used. If a physician incorrectly applies purgation to a Taiyang disease, resulting in shortness of breath, irritability, mental vexation, epigastric hardness, and formation of Chest Binding (Jie Xiong), Daxiexiong Tang [Major Yellow Dragon Decoction] should be used; this is shortness of breath due to pathogens in the interior"). Treatments vary accordingly. Generally, shortness of breath is often an excess pattern. The Synopsis of Prescriptions of the Golden Chamber states: "Shortness of breath where respiration is insufficient indicates excess." Additionally, fluid retention in the heart region also causes shortness of breath. The Synopsis of Prescriptions of the Golden Chamber states: "Consuming little food and drinking much water leads to fluid retention in the heart region; mild cases manifest as shortness of breath." Scholars must carefully distinguish these.
Exterior Patterns: Shortness of breath accompanied by joint pain, inability to flex or extend, sweating, difficult urination, aversion to wind, and body swelling indicates Wind-Dampness, for which Gancao Fuzi Tang [Licorice and Aconite Decoction] is appropriate (see commentary under 'Body Pain'). Shortness of breath with abdominal fullness and hypochondriac pain, where the patient presents with a wiry, floating, and large pulse, unresolved exterior, anhidrosis, lethargy, jaundice, difficult urination, and tidal fever, calls for Xiaochaihu Tang [Minor Bupleurum Decoction] (see commentary under 'Stomach Excess' and formula commentary under 'Alternating Chills and Fever').
Interior Patterns: If the exterior is unresolved, with continuous sweating from the hands and feet or tidal fever, Dachengqi Tang [Major Order the Qi Decoction] is appropriate (see commentary under 'Tidal Fever'). If the exterior has resolved, with epigastric stuffiness and hardness, dry retching, and shortness of breath, Shizao Tang [Ten Jujube Decoction] is appropriate (see formula under 'Hypochondriac Fullness and Pain').
Incomplete Sweating: Shortness of breath and irritability occur if sweating was incomplete; subsequent slight sweating, absence of aversion to cold, unresolved exterior patterns, and red face indicate a concurrent disease (Bing Bing); further diaphoresis will lead to recovery (see commentary under 'Red Face').
After Purgation: If after purgation there is mental vexation and epigastric hardness and pain, Daxiexiong Tang [Major Yellow Dragon Decoction] should be used (see commentary under 'Chest Binding').
Diagnosis: When the Dubyang pulse is faint and tight, tight indicates cold, faint indicates deficiency; the interaction of faint and tight causes shortness of breath. Sitting while leaning forward indicates shortness of breath.
Appendix:
Tao Hua: In Shanghan (Cold Damage), failure to apply sweating or purging, or weakness following sweating/purging, leading to rebellious qi that fails to connect continuously, is named shortness of breath. It must be treated by distinguishing excess and deficiency. This differs from panting.
Wu Qian: After sweating, vomiting, or purging, if primal qi is weak, the pulse is faint and deficient, and qi fails to connect causing shortness, Renshen Yiqi Tang [Ginseng Qi-Boosting Decoction] should be used. For any Yin-pattern diseases with weak, fine, deep, and slow pulses, cold extremities, facial aversion to cold as if scraped by a knife, and difficulty in distributing breath through the mouth and nose resulting in shortness, Sini Tang [Frigid Extremities Decoction] added with Renshen [Ginseng] is indicated. Furthermore, consuming little food and drinking much water, causing fluid retention in the heart region and leading to shortness of breath and vexation, should be treated with Linggan Fuzi Tang [Poria, Licorice, and Atractylodes Macrocephala Decoction].