Endobronchial Intubation During Upper Abdominal Laparoscopic Surgery in the Reverse Trendelenburg Position

1994 ◽  
Vol 78 (3) ◽  
pp. 607 ◽  
Author(s):  
Joseph R. Brimacombe ◽  
Hans Orland ◽  
David Graham
2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Kazutomo Saito ◽  
Hiroaki Toyama ◽  
Moeka Saito ◽  
Masanori Yamauchi

Abstract Background Laparoscopic surgery for a patient with Fontan physiology is challenging because pneumoperitoneum and positive pressure ventilation could decrease venous return and the accumulated partial pressure of arterial carbon dioxide (PaCO2) could increase pulmonary vascular resistance, which might lead to disruption of the hemodynamics. Case presentation A 25-year-old man with Fontan physiology was scheduled to undergo laparoscopic liver resection for Fontan-associated liver disease (FALD) with noninvasive monitoring of cardiac output (CO) by transpulmonary thermodilution in addition to transesophageal echocardiography. The abdominal air pressure was maintained low, and we planned to switch to open abdominal surgery promptly if hemodynamic instability became apparent because of the accumulated PaCO2 or postural change. Consequently, the pneumoperitoneum had limited influence on circulatory dynamics, but central venous pressure significantly decreased with postural change to the reverse Trendelenburg position. Laparoscopic liver resection for FALD was performed successfully with no significant changes in CO and central venous saturation. Conclusions With strict circulation management, laparoscopic surgery for a patient with Fontan physiology can be performed safely. Comprehensive hemodynamic assessment by noninvasive transpulmonary thermodilution can provide valuable information to determine the time for shift to open abdominal surgery.


2020 ◽  
Vol 33 (3) ◽  
pp. 202
Author(s):  
Ana Margarida Damas ◽  
Fátima Gonçalves ◽  
Marisa Antunes ◽  
Sónia Barata

Pneumothorax is an infrequent complication of laparoscopic surgery. Most cases occur during upper abdominal surgery, since a head-down position (Trendelenburg) pushes the liver and peritoneum against the diaphragm, reducing gas release. When it is due to CO2 diffusion across congenital diaphragmatic defects, it usually resolves itself spontaneously after de-insufflation of the pneumoperitoneum. Increasing positive end-expiratory pressure to counteract intra-abdominal pressure is an effective measure when a pulmonary origin is excluded. We report a case of right-sided hypertensive capnothorax due to a diaphragmatic defect, during lower abdominal surgery, which was successfully managed without the need for chest drainage. This case highlights the importance of maintaining active vigilance and a high index of suspicion for pneumothorax during laparoscopic surgery. 


Author(s):  
Jianli Li ◽  
Saixian Ma ◽  
Xiujie Chang ◽  
Songxu Ju ◽  
Meng Zhang ◽  
...  

AbstractThe study aimed to investigate the efficacy of PCV-VG combined with individual PEEP during laparoscopic surgery in the Trendelenburg position. 120 patients were randomly divided into four groups: VF group (VCV plus 5cmH2O PEEP), PF group (PCV-VG plus 5cmH2O PEEP), VI group (VCV plus individual PEEP), and PI group (PCV-VG plus individual PEEP). Pmean, Ppeak, Cdyn, PaO2/FiO2, VD/VT, A-aDO2 and Qs/Qt were recorded at T1 (15 min after the induction of anesthesia), T2 (60 min after pneumoperitoneum), and T3 (5 min at the end of anesthesia). The CC16 and IL-6 were measured at T1 and T3. Our results showed that the Pmean was increased in VI and PI group, and the Ppeak was lower in PI group at T2. At T2 and T3, the Cdyn of PI group was higher than that in other groups, and PaO2/FiO2 was increased in PI group compared with VF and VI group. At T2 and T3, A-aDO2 of PI and PF group was reduced than that in other groups. The Qs/Qt was decreased in PI group compared with VF and VI group at T2 and T3. At T2, VD/VT in PI group was decreased than other groups. At T3, the concentration of CC16 in PI group was lower compared with other groups, and IL-6 level of PI group was decreased than that in VF and VI group. In conclusion, the patients who underwent laparoscopic surgery, PCV-VG combined with individual PEEP produced favorable lung mechanics and oxygenation, and thus reducing inflammatory response and lung injury.Clinical Trial registry: chictr.org. identifier: ChiCTR-2100044928


2021 ◽  
Vol 8 (4) ◽  
pp. 515-520
Author(s):  
Pratikkumar Patel ◽  
Vijay Mathur ◽  
Shruti Singhal ◽  
Durga Jethava

Optic nerve sheath diameter measurement is a simple, non-invasive and yet accurate intracranial pressure (ICP) assessment technique during laparoscopic surgery. The pneumoperitoneum induced by insufflating carbon-dioxide and steep angle of trendelenburg position is associated with physiological changes resulting in increased ICP during laparoscopic surgery. We aimed to observe the changes of ONSD (surrogate marker of ICP) following the use of total intravenous anaesthesia in comparison to desflurane during laparoscopic surgery.Patients scheduled for elective laparoscopic surgery were randomly assigned to the TIVA or DES group in this randomized study. Ultrasonographic measurements of ONSD were conducted before administration of anaesthesia (T0), 10 mins, 30 mins, 1 hr after the trendelenburg position (T1,T2,T3), 5mins after resuming the supine position (T4) and at post-anaesthetic care unit (T5). The primary outcome measure was the comparison of the mean ONSD of both the eyes of the patients of both the groups that is TIVA versus DES (inhalational anaesthetic) group.A total of 60 patients were analysed in our study. The mean ONSD value at T1, T2, T3 and T4 (for right eye p=0.002,0.001,<0.01,0.03 respectively and for left eye p=0.004,<0.01,<0.01,0.02 respectively) were significantly lower for patients in TIVA group as compared with those in DES group.Our result suggests that TIVA may be a better option than inhalational anaesthesia to prevent rise in intracranial pressure in patients undergoing laparoscopic surgery and preventing devastating complications caused by raised intracranial pressure in succeptible patients.


2020 ◽  
Author(s):  
Bo Rim Kim ◽  
Seohee Lee ◽  
Hansu Bae ◽  
Minkyoo Lee ◽  
Jae-Hyon Bahk ◽  
...  

Abstract Background The intraoperative alveolar recruitment maneuver (ARM) efficiently treats atelectasis, but the effect of Fio 2 during ARM on atelectasis is uncertain. Here, we investigated this effect. Methods Patients undergoing elective laparoscopic surgery in the Trendelenburg position were randomized to low- (Fio 2 0.4; n=44) and high-Fio 2 (Fio 2 1.0, n=46) groups. ARMs were performed 1-min post tracheal intubation and post changes between supine and Trendelenburg positions during surgery. Intraoperative Fio 2 was set at 0.4 for both groups. Modified lung ultrasound (LUS) scores were calculated to assess lung aeration after inducing anesthesia and at surgery completion. The primary outcome was modified LUS score at the end of the surgery, and secondary outcomes were the intra- and postoperative Pao 2 to Fio 2 ratio and postoperative pulmonary complications. Results Both groups presented similar modified LUS scores before capnoperitoneum and ARM ( P =0.747). However, the postoperative modified LUS score was significantly lower in the low- than in the high-Fio 2 group (7.0±4.1 vs 11.7±4.2, mean difference 4.7, 95% CI 2.96–6.44, P <0.001). Significant atelectasis postoperatively was more common in the high-Fio 2 group (relative risk 1.77, 95% CI 1.27‒2.47, P <0.001). Intra- and postoperative Pao 2 to Fio 2 were similar and no postoperative pulmonary complications occurred. Atelectasis occurred more frequently when ARM was performed with high than with low Fio 2 . High-Fio 2 did not benefit oxygenation. Conclusions In patients undergoing laparoscopic surgery in the Trendelenburg position, absorption atelectasis occurred more frequently when the ARM was performed with high rather than low Fio 2 . No oxygenation benefit was observed in the high-Fio 2 group.


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