Utility of Perioperative Lung Ultrasound in Pediatric Cardiac Surgery

2018 ◽  
Vol 128 (4) ◽  
pp. 718-727 ◽  
Author(s):  
In-Kyung Song ◽  
Eun-Hee Kim ◽  
Ji-Hyun Lee ◽  
Pyoyoon Kang ◽  
Hee-Soo Kim ◽  
...  

Abstract Background Pediatric cardiac patients are at risk for perioperative respiratory insufficiency. The objective of this study was to assess the utility of perioperative lung ultrasound examination in pediatric cardiac surgery. Methods In this randomized, controlled trial, children (5 yr old or younger) undergoing cardiac surgery were allocated into a control (n = 61) or intervention (n = 61) group. The control group received only lung ultrasound examinations at the end of surgery and 6 to 12 h after surgery. The intervention group received lung ultrasound examinations and an ultrasound-guided recruitment maneuver depending on ultrasound findings after inducing anesthesia, at the end of surgery, and 6 to 12 h after surgery. Primary outcomes were incidences of intra- and postoperative desaturation, and postoperative pulmonary complications. Multiple comparisons were corrected (P ≤ 0.017) in the primary outcome analysis. Results Of the 120 children included in the analysis, postoperative desaturation (64% vs. 27%; P < 0.001; odds ratio [OR], 0.210; 95% CI, 0.097 to 0.456) occurred more in the control group. The incidences of intraoperative desaturation (36% vs. 19%; P = 0.033; OR, 0.406; 95% CI, 0.176 to 0.939) and postoperative pulmonary complications (12% vs. 3%; P = 0.093; OR, 0.271; 95% CI, 0.054 to 1.361) were similar between the groups. Lung ultrasound scores were better in the intervention group than in the control group. Duration of mechanical ventilation was longer in the control group than in the intervention group (38 ± 43 vs. 26 ± 25 h; 95% CI of mean difference, 0 to 25; P = 0.048). Conclusions Perioperative lung ultrasound examination followed by ultrasound-guided recruitment maneuver helped decrease postoperative desaturation events and shorten the duration of mechanical ventilation in pediatric cardiac patients.

2019 ◽  
Vol 33 (5) ◽  
pp. 913-922 ◽  
Author(s):  
Xiaoyu Chen ◽  
Lin Hou ◽  
Yuanyuan Zhang ◽  
Xiangjing Liu ◽  
Bohan Shao ◽  
...  

Objective: To determine the prophylactic efficacy of short-term intensive preoperative inspiratory muscle training on the incidence of postoperative pulmonary complications in patients scheduled for cardiac surgery. Design: Single-blind, randomized controlled pilot study. Setting: TEDA International Cardiovascular Hospital, China. Subjects: In total, 197 subjects aged ⩾50 years scheduled for cardiac surgery were selected. Intervention: The intervention group ( n = 98) received five days of preoperative inspiratory muscle training on top of the usual care received by the patients in the control group ( n = 99). Main measures: The primary outcome variable was the occurrence of postoperative pulmonary complications. The secondary outcome variables were inspiratory muscle strength, lung function and length of hospitalization. Results: After cardiac surgery, a total of 10 (10.2%) of the 98 patients in the intervention group and 27 (27.3%) of 99 patients in the control group had postoperative pulmonary complications (risk ratio, 0.23; 95% confidence interval (CI), 0.09–0.58, P = 0.002). The study revealed that, compared with the control group, the intervention group had a significant increase in inspiratory muscle strength (by 10.48 cm H2O, P < 0.001), forced expiratory volume in the first second of expiration (FEV1) %predicted (by 3.75%, P = 0.030), forced vital capacity (FVC) %predicted (by 4.15%, P = 0.008) and maximal voluntary ventilation (MVV) %predicted (by 6.44%, P = 0.034). Length of hospital stay was 7.51 (2.83) days in the intervention group and 9.38 (3.10) days in the control group ( P = 0.039). Conclusion: A five-day intensive pattern of preoperative inspiratory muscle training reduced the incidence of postoperative pulmonary complications and duration of postoperative hospitalization in patients undergoing cardiac surgery.


2021 ◽  
Author(s):  
Yi Liu ◽  
Jingyu Wang ◽  
Yong Wan ◽  
Yuan Geng ◽  
Yiran Zhang ◽  
...  

Abstract BackgroundAtelectasis is a major cause of hypoxemia during general anesthesia and postoperative pulmonary complications (PPCs).Some previous reported that the combined use of lung recruitment procedures (LRMs) and positive end-expiratory pressure (PEEP) in mechanical ventilation mode contributes to the avoidance of PPCs in patients after general anesthesia, while others suggest that the use of LRMs makes patients more susceptible to hemodynamic disturbances and lung injury, and is of limited potential to decrease the incidence of PPCs. From this perspective, controversy exists as to whether LRMs should be routinely applied to surgical patients. More importantly, corresponding clinical studies are also lacking. Therefore, this trial was conducted with the aim of solving the above problem.MethodsIn current clinical trial, patients undergoing laparoscopic gynecologic surgery with healthy lungs were randomized to the recruitment maneuvers group (RM group; 6 cm H2O PEEP and RMs) and the control group (C group; 6 cm H2O PEEP and no RMs). Lung ultrasound was performed on patients at five separate time points. During mechanical ventilation, patients in the RM group received ultrasound-guided pulmonary resuscitation when atelectasis was detected, while the C group did not intervene. Lung ultrasound scores were used to evaluate the incidence and severity of atelectasis.ResultsAfter LRMs, the incidence of atelectasis was significantly lower in the RM group (40%) than in the C group (80%) 15 minutes after arrival in the post-anesthesia care unit (PACU), and this difference did not persist for 24 hours after surgery. Meanwhile, postoperative pulmonary complications showed no difference between the two groups.ConclusionsThe combination of LRMs and PEEP decreased the incidence of atelectasis 15 minutes after admission to the PACU, but did not improve PPCs in adults with healthy lungs. Hence, for lung-healthy patients undergoing gynecological laparoscopic surgery, we do not recommend routine recruitment maneuvers. Trial registration: (prospectively registered): ChiCTR2000033529. Registered on 6/4/2020.


2021 ◽  
Author(s):  
Yi Liu ◽  
Jingyu Wang ◽  
Yong Wan ◽  
Yuan Geng ◽  
Yiran Zhang ◽  
...  

Abstract BackgroundAtelectasis is a major cause of hypoxemia during general anesthesia and postoperative pulmonary complications (PPCs).Some previous reported that the combined use of lung recruitment procedures (LRMs) and positive end-expiratory pressure (PEEP) in mechanical ventilation mode contributes to the avoidance of PPCs in patients after general anesthesia, while others suggest that the use of LRMs makes patients more susceptible to hemodynamic disturbances and lung injury, and is of limited potential to decrease the incidence of PPCs. From this perspective, controversy exists as to whether LRMs should be routinely applied to surgical patients. More importantly, corresponding clinical studies are also lacking. Therefore, this trial was conducted with the aim of solving the above problem.MethodsIn current clinical trial, patients undergoing laparoscopic gynecologic surgery with healthy lungs were randomized to the recruitment maneuvers group (RM group; 6 cm H2O PEEP and RMs) and the control group (C group; 6 cm H2O PEEP and no RMs). Lung ultrasound was performed on patients at five separate time points. During mechanical ventilation, patients in the RM group received ultrasound-guided pulmonary resuscitation when atelectasis was detected, while the C group did not intervene. Lung ultrasound scores were used to evaluate the incidence and severity of atelectasis.ResultsAfter LRMs, the incidence of atelectasis was significantly lower in the RM group (40%) than in the C group (80%) 15 minutes after arrival in the post-anesthesia care unit (PACU), and this difference did not persist for 24 hours after surgery. Meanwhile, postoperative pulmonary complications showed no difference between the two groups.ConclusionsThe combination of LRMs and PEEP decreased the incidence of atelectasis 15 minutes after admission to the PACU, but did not improve PPCs in adults with healthy lungs. Hence, for lung-healthy patients undergoing gynecological laparoscopic surgery, we do not recommend routine recruitment maneuvers. Trial registration (prospectively registered)ChiCTR2000033529. Registered on June 4, 2020.


2021 ◽  
pp. 026921552110709
Author(s):  
Telma Cristina Fontes Cerqueira ◽  
Manoel Luiz de Cerqueira Neto ◽  
Lucas de Assis Pereira Cacau ◽  
Amaro Afrânio de Araújo Filho ◽  
Géssica Uruga Oliveira ◽  
...  

Objective To evaluate the effects of neuromuscular electrical stimulation on functional capacity of patients in the immediate postoperative period of cardiac surgery. Design A prospective, randomized controlled trial. Setting A cardiac surgery specialist hospital in Aracaju, Sergipe, Brazil. Subjects: Patients in the postoperative period of cardiac surgery. Intervention The control group received the conventional physiotherapy and the intervention group received neuromuscular electrical stimulation of the rectus femoris and gastrocnemius muscles bilaterally, applied for 60 min, twice a day for up to 10 sessions per patient, in the immediate postoperative period until postoperative day 5. Main measures The primary outcome was the distance walked, which was evaluated using the 6-min walk test on postoperative day 5. Secondary outcomes were gait speed, lactate levels, muscle strength, electromyographic activity of the rectus femoris and Functional Independence Measure, some of them evaluated on preoperative and postoperative period. Results Of 132 eligible patients, 88 patients were included and randomly allocated in two groups, and 45 patients were included in the analysis. No significant difference was found on the distance walked ( p = 0.650) between patients allocated in intervention group (239.06 ± 88.55) and control group (254.43 ± 116.67) as well as gait speed ( p = 0.363), lactate levels ( p = 0.302), knee extensor strength ( p = 0.117), handgrip strength ( p = 0.882), global muscle strength ( p = 0.104), electromyographic activity ( p = 0.179) and Functional Independence Measure ( p = 0.059). Conclusions Although the effects are still uncertain, the use of neuromuscular electrical stimulation carried out in five days didn't present any benefit on functional capacity of patients in the immediate postoperative period of cardiac surgery.


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.


1999 ◽  
Vol 8 (2) ◽  
pp. 118-126 ◽  
Author(s):  
H Kim ◽  
BJ Garvin ◽  
DK Moser

BACKGROUND: Negative emotional reactions and difficulty in communicating are common in patients receiving mechanical ventilation and may adversely affect recovery from cardiac surgery. OBJECTIVE: To determine the effect of providing concrete objective information about emotional stress and difficulty in communicating related to mechanical ventilation to Korean cardiac surgery patients. METHODS: A quasi-experimental 2-group design was used. The 22 subjects in the control group received the usual information; the 21 in the experimental group received concrete objective information in addition to the usual information. State anxiety, negative affect, use of sedative and analgesic medications, and difficulty communicating were compared between the 2 groups after surgery. RESULTS: Patients who received concrete objective information experienced less anxiety and negative mood during mechanical ventilation, less difficulty in communicating, and a shorter intubation time than did patients in the control group. The 2 groups did not differ in the amount of sedative or analgesic medication used per hour during mechanical ventilation. CONCLUSIONS: Nursing interventions that include concrete objective information help cardiac patients cope with the stresses associated with surgery and mechanical ventilation.


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