鄒魯 屈媛媛 許旭東
[摘要]目的 探討喉罩與氣管插管對腹腔鏡下膽囊切除術(shù)患者胃脹氣及術(shù)后惡心嘔吐(PONV)的影響。方法 選取2016年9月~2017年9月在常州市中醫(yī)醫(yī)院行擇期腹腔鏡下膽囊切除術(shù)的90例患者,按照隨機數(shù)字表法分為氣管插管(T)組、喉罩壓力控制通氣(P)組和喉罩容量控制通氣(V)組,每組各30例。使用超聲測定喉罩(或氣管導(dǎo)管)置入成功后(T0)和手術(shù)結(jié)束后(T1)的胃竇面積(GAA)變化,并比較三組患者術(shù)后惡心嘔吐發(fā)生率。結(jié)果? 三組患者T0時的GAA比較,差異無統(tǒng)計學(xué)意義(P>0.05);V組和P組T1時的GAA大于T0,差異有統(tǒng)計學(xué)意義(P<0.05);V組和P組T1時的GAA大于T組,差異有統(tǒng)計學(xué)意義(P<0.05);V組和P組T1時PONV的發(fā)生率高于T組,差異有統(tǒng)計學(xué)意義(P<0.05)。 結(jié)論 與常規(guī)氣管插管比較,喉罩全身麻醉患者術(shù)后胃脹氣以及PONV發(fā)生率明顯增高。
[關(guān)鍵詞]喉罩;全身麻醉;胃脹氣;超聲;惡心嘔吐
[中圖分類號] R614? ? ? ? ? [文獻(xiàn)標(biāo)識碼] A? ? ? ? ? [文章編號] 1674-4721(2020)7(b)-0153-04
Influence of laryngeal mask airway and tracheal intubation on flatulence and postoperative nausea and vomiting in patients undergoing laparoscopic cholecystectomy
ZOU Lu? ?QU Yuan-yuan? ?XU Xu-dong
Department of Anaesthesiology, Changzhou Traditional Chinese Medicine Hospital, Jiangsu Province, Changzhou? ?213001, China
[Abstract] Objective To investigate the influence of laryngeal mask airway and tracheal intubation on flatulence and postoperative nause and vomiting (PONV) in patients undergoing laparoscopic cholecystectomy. Methods A total of 90 patients undergoing elective laparoscopic cholecystectomy at Changzhou Traditional Chinese Medicine Hospital from September 2016 to September 2017 were enrolled. According to the random number table methods, they were divided into the tracheal intubation (T) group, the laryngeal mask pressure control ventilation (P) group and the laryngeal mask volume control ventilation (V) group, 30 cases in each group. Ultrasound was used to measure changes in gastric antrum area (GAA) after successful placement of the laryngeal mask or tracheal tube (T0) and after surgery (T1), and the incidence of PONV were compared between the three groups. Results There were no significant differences in GAA between the three groups at T0 (P>0.05). The GAA of group V and group P at T1 were larger than those at T0, the differences were statistically significant (P<0.05). The GAA at T1 of group V and group P were larger than those of group T, the differences were statistically significant (P<0.05). The incidence of PONV of group V and group P were higher than that of group T, and the differences were statistically significant (P<0.05). Conclusion Compared with conventional tracheal intubation, the degree of gastric distention and the incidence of PONV after general anesthesia with LMA are significantly increased.
[Key words] Laryngeal mask airway; General anesthesia; Flatulence; Ultrasound; Nausea and vomiting
2結(jié)果
2.1三組患者T0及T1時GAA的比較
三組患者T0時的GAA比較,差異無統(tǒng)計學(xué)意義(P>0.05)。V組和P組T1時的GAA大于T0時,差異有統(tǒng)計學(xué)意義(P<0.05);T組T1時的GAA與T0時比較,差異無統(tǒng)計學(xué)意義(P>0.05);V組和P組T1時的GAA大于T組,差異有統(tǒng)計學(xué)意義(P<0.05);V組和P組T1時的GAA比較,差異無統(tǒng)計學(xué)意義(P>0.05)(表2)。
2.2三組患者術(shù)后24 h內(nèi)PONV發(fā)生率的比較
T組術(shù)后24 h內(nèi)PONV發(fā)生3例,V組術(shù)后24 h內(nèi)PONV發(fā)生12例,P組術(shù)后24 h內(nèi)PONV發(fā)生11例,三組比較差異有統(tǒng)計學(xué)意義(χ2=7.897,P=0.019)。V組患者的PONV發(fā)生率高于T組,差異有統(tǒng)計學(xué)意義(χ2=7.200,P=0.007);P組患者的PONV發(fā)生率高于T組,差異有統(tǒng)計學(xué)意義(χ2=5.963,P=0.015);V組與P組患者的PONV發(fā)生率比較,差異無統(tǒng)計學(xué)意義(χ2=0.071,P=0.791)。
3討論
LMA因其不良反應(yīng)少、操作相對簡便,被廣泛應(yīng)用于短時全身麻醉手術(shù)中,尤其是腔鏡手術(shù)中[6]。隨著科學(xué)技術(shù)的進(jìn)步以及新材料的應(yīng)用,LMA控制通氣的可靠性明顯改善[7],但由于固有的結(jié)構(gòu)特點,其插入下咽腔的部位會引起食管括約肌不能完全關(guān)閉,氣道也無法保證絕對密閉,這使得胃腸道脹氣的風(fēng)險高于常規(guī)氣管插管[8]。Park等[9]觀察到在兒童手術(shù)中使用i-gel喉罩,如果不同時置入胃管,無論使用何種通氣模式,術(shù)后胃脹氣均會發(fā)生。
超聲檢查因其具有無創(chuàng)、方便、安全等優(yōu)點,近年來廣泛用于檢測胃容積及胃排空情況,尤其適用于孕婦及兒童。超聲測定方法一般分為全胃體積法、胃竇體積法、胃竇單切面積法3種,目前多采用胃竇單切面積法。Hamada等[10]采用超聲檢測危重患者GAA并計算其胃容積大小,證實了實時超聲法在危重病患特別是具有高度誤吸風(fēng)險的病患中測定其胃排空具有可行性和有效性。Bouvet等[11]的研究也同樣顯示,超聲測定GAA與真實胃容量具有良好的相關(guān)性,因此,通過超聲測量麻醉前后GAA,可以較好地判定胃的脹氣程度。本研究結(jié)果顯示,V組和P組患者T1時的GAA測量值均較T0時顯著增加,差異有統(tǒng)計學(xué)意義(P<0.05),T組比較無統(tǒng)計學(xué)意義(P>0.05),提示LMA通氣與常規(guī)氣管插管相比,無論采用壓力控制或者容量控制通氣模式,都會增加患者術(shù)后胃脹氣的程度。
胃脹氣帶來的胃體積變大除了會影響手術(shù)視野、增加手術(shù)難度以外,還可能增加術(shù)后并發(fā)癥的風(fēng)險。既往文獻(xiàn)報道,患者全身麻醉誘導(dǎo)后胃脹氣的程度與術(shù)后早期惡心嘔吐的發(fā)生率成正相關(guān)[12],胃脹氣超過誘導(dǎo)前的10%就會明顯增加患者PONV的發(fā)生率[13]。在本研究中,與T組比較,V組和P組術(shù)后24 h內(nèi)的PONV發(fā)生率顯著升高,差異有統(tǒng)計學(xué)意義(P<0.017),進(jìn)一步說明術(shù)后胃脹氣的程度與PONV的發(fā)生率具有一致性。分析其原因可能為:①氣體進(jìn)入胃腸道后,牽拉胃壁及腸管,興奮迷走和內(nèi)臟傳入神經(jīng),并傳至中樞神經(jīng)系統(tǒng),最終誘發(fā)嘔吐反射[14];②胃脹氣影響患者術(shù)后胃腸功能的恢復(fù)[15];③胃脹氣可能會導(dǎo)致患者的胃液反流,刺激咽喉部,誘發(fā)惡心嘔吐。
綜上所述,與常規(guī)氣管插管比較,喉罩全身麻醉術(shù)后胃脹氣以及PONV發(fā)生率明顯增高。因此,對于PONV高危患者以及未嚴(yán)格禁食的急診患者,如何選擇最佳的通氣裝置,減少術(shù)后并發(fā)癥,提高術(shù)后恢復(fù)期的滿意度,縮短患者住院時間,是臨床上需要進(jìn)一步研究的問題。
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(收稿日期:2020-01-22)