Carbon dioxide embolism during laparoscopic cholecystectomy due to a patent paraumbilical vein

Gas Embolism in Pediatric Minimally Invasive Surgery: Should It Be a Concern?

Introduction: Gas embolism can occur during minimally invasive surgical procedures. Its incidence and implications in infants and children are not clear. The objective of this study is to identify gas embolism with transthoracic echocardiography and its consequences in pediatric laparoscopic appendectomy. Materials and Methods: This is a descriptive observational study including children undergoing laparoscopic appendectomy. We performed transthoracic echocardiography during surgery and collected data on intraoperative hemodynamic and respiratory parameters. Results: To date, we have included 10 patients in whom intraoperative transthoracic echocardiography revealed a 50% incidence of gas embolism. All episodes of embolism were grade I or II, and the patients remained asymptomatic. The hemodynamic and respiratory parameters varied slightly during the pneumoperitoneum. Conclusions: Episodes of gas embolism in pediatric laparoscopic appendectomy appeared in up to 50% of patients. Although they were subclinical, we should be aware of the risk of serious events and take measures to maximize safety in pediatric minimally invasive surgery.

Rates of Air Embolism in Pediatric Patients Undergoing Surgical Procedures of the Peritoneum

Background: Air embolism during laparoscopic surgery is a rare but feared complication in the pediatric population. The objective of this study was to identify rates of air embolus in pediatric patients during hospitalization for laparoscopic or open surgical procedures of the peritoneal cavity. Materials and Methods: Patients 0-18 years old within the Pediatric Health Information System who underwent a predefined, common inpatient laparoscopic or open surgical procedure involving the peritoneal cavity from 2015 to 2020 were studied. International Classification of Diseases, Tenth Revision, Clinical Modification diagnosis codes for air embolism were then searched among patients during the same admission. Firth logistic regression was used to compare rates of air embolism in open and laparoscopic cohorts and in patients >1 and ≤1 year. Results: Unadjusted rates of air embolism were higher in patients undergoing open compared with laparoscopic surgery (open: 9/45,080; 20.0/100,000 patients versus laparoscopic: 3/101,892; 2.9/100,000 patients). In patients ≤1 year (45,726), 2 patients undergoing open surgery (2/1,031; 9.5/100,000 patients) and all 3 patients undergoing laparoscopic surgery had an air embolism diagnosis (3/22,329; 13.4/100,000 patients). For laparoscopic surgery, a suggested lower relative risk (RR) of air embolism was demonstrated for children >1 year compared with children ≤1 year (RR: 0.05, P = .05). Conclusion: Air embolism associated with common pediatric surgical procedures of the peritoneum is rare and patients undergoing laparoscopic and open surgery have similar risks for air embolism. Although rare, the risk should be considered during surgical planning and abdominal access, especially in children ≤1 year old.

Carbon Dioxide Embolism Resulting From Liver Laceration During Peritoneal Optical Trocar Entry

Venous air emboli have been reported to occur in numerous settings, including trauma, various surgical procedures, both laparoscopic and radiologically, and even idiopathically. In this case study, a liver laceration was made during a robot-assisted left colectomy and colostomy in a 69-year-old female resulting in air embolism during insufflation. A drop in end-tidal CO₂ was noted and the patient went into immediate cardiac arrest. Adequate pressure was applied and over-suturing of the liver laceration was made with reverse Trendelenburg positioning during the administration of cardiopulmonary resuscitation (CPR) for approximately one minute. The patient completed an open hemicolectomy the following day and made a complete recovery. Preventative and intraoperative measures to prevent further recurrences of venous air emboli are discussed.

Paradoxical carbon dioxide embolism during laparoscopic hepatectomy without intracardiac shunt: A case report

BACKGROUND

Laparoscopic hepatectomy has recently become popular because it results in less bleeding than open hepatectomy. However, CO₂ embolism occurs more frequently. Most CO₂ embolisms during laparoscopic surgery are self-resolving and non-symptomatic; however, severe CO₂ embolism may cause hypotension, cyanosis, arrhythmia, and cardiovascular collapse. In particular, paradoxical CO₂ embolisms are highly likely to cause neurological deficits. We report a case of paradoxical CO₂ embolism found on transesophageal echocardiography (TEE) during laparoscopic hepatectomy, although the patient had no intracardiac shunt.

CASE SUMMARY

A 71-year-old man was admitted for laparoscopic left hemihepatectomy. During left hepatic vein ligation, the inferior vena cava was accidentally torn. We observed a sudden drop in oxygen saturation to 85%, decrease in systolic blood pressure (SBP) below 90 mmHg, and reduction in end-tidal CO₂ to 24 mmHg. A “mill-wheel” murmur was auscultated over the precordium. The fraction of inspired oxygen was increased to 100% with 5 cmH₂O of positive end-expiratory pressure (PEEP) and hyperventilation was maintained. Norepinephrine infusion was increased to maintain SBP above 90 mmHg. A TEE probe was inserted, revealing gas bubbles in the right side of the heart, left atrium, left ventricle, and ascending aorta. The surgeon reduced the pneumoperitoneum pressure from 17 to 14 mmHg and repaired the damaged vessel laparoscopically. Thereafter, the patient’s hemodynamic status stabilized. The patient was transferred to the intensive care unit, recovering well without complications.

CONCLUSION

TEE monitoring is important to quickly determine the presence and extent of embolism in patients undergoing laparoscopic hepatectomy.

Umbilical access in laparoscopic surgery in infants less than 3 months of age: A survey of the American Pediatric Surgical Association

PURPOSE

Laparoscopy is commonplace in pediatric surgery. Abdominal access via the umbilicus may present a unique challenge in neonates and young infants predisposing them to complications. We hypothesized that these complications may occur more than described in the literature.

METHODS

Members of the American Pediatric Surgical Association (APSA) were anonymously surveyed in February of 2018 via REDCap™ regarding technique of umbilical access in infants less than 3 months of age and complications experienced during umbilical access. Approval was obtained from the IRB and the APSA Outcomes and Evidence-based Practice Committee.

RESULTS

The response rate was 31.3% (329/1050). 62.3% of respondents performed 21 or greater neonatal laparoscopic procedures annually. 34 of 322 respondents reported a direct complication from umbilical access for laparoscopy in this age group (10.6%). Surgeons described 37 specific cases with complications related to umbilical access, with laparoscopic pyloromyotomy making up 47.2% (17/36). CO₂ embolism was the most common complication; 15.4% of surgeons reported not knowing about the possibility of CO₂ embolism. 41% of surgeons confirm intraabdominal placement of the umbilical trocar prior to insufflation. There was no association between any complication and where the umbilical trocar was placed (above/below/through umbilicus) or placement technique in patients with no umbilical cord stump. There may be an association between complication and where the umbilicus is entered in patients with an umbilical cord stump still in place (p = 0.013).

CONCLUSIONS

Umbilical access for laparoscopy in neonates and infants less than 3 months of age can present a unique challenge and result in significant complications. All techniques and methods had complications. Surgeons should be aware of these risks and be prepared to manage them emergently if they arise.

LEVEL OF EVIDENCE

V, expert opinion.

Venous carbon dioxide embolism during laparoscopic cholecystectomy a literature review

Laparoscopy has become the procedure of choice for routine gallbladder removal. A serious complication of this technique is the occurrence of gas emboli due to insufflation. It is associated with a high mortality rate of around 28%. The present systematic review intends to provide more insight into causes, symptoms and risk factors for this specific complication and to explore which measures should be taken to treat and prevent it. The Cochrane library and Pubmed were used as sources. Articles and their references were selected when they were related to the subject in sufficient detail. The course of this complication can vary from asymptomatic up to impairment of normal flow through the right ventricle (RV) or pulmonary artery, potentially leading to acute heart failure. The severity depends on the amount of gas, the rate of accumulation and the ability to remove the gas bubbles. It is difficult to estimate the true incidence of venous gas embolism during laparoscopic cholecystectomy as there are various diagnostic tools, each with different sensitivity. Precautions that need to be taken are: correct positioning of the needle, low insufflation pressure, low insufflation speed, screening for hypovolemia, Trendelenburg positioning, availability of intervention equipment at operation table, no placement of venous catheters during inspiration and catheter removing during expiration. Physicians need to be more aware of this harmful complication and the preventative measurements that need to be taken. As there are virtually no prospective data, future studies are needed to gain more knowledge on gas emboli during laparoscopic cholecystectomy.

Pneumoperitoneum for neonatal laparoscopy: how safe is it?

We present the case of a 3 day old term neonate who experienced a cardiopulmonary arrest during creation of pneumoperitoneum for laparoscopic repair of duodenal atresia. The arrest was thought likely to have occurred as a result of a gas embolism. We discuss the features of the neonatal circulation which may predispose neonates to embolic phenomena during laparoscopic procedures, and the potential benefit of priming the insufflation apparatus with carbon dioxide. The possibility of gas embolism should be considered when contemplating laparoscopic surgery in this patient group.

Air in the insufflation tube may cause fatal embolizations in laparoscopic surgery: an animal study

BACKGROUND

The aim of this study was to evaluate the risk of an air embolization with the volume of the insufflation tube during induction of laparoscopy. A further objective was to determine the LD₅₀ of air in young piglets.

METHODS

End-tidal carbon dioxide pressure ([Formula: see text]), pulmonary arterial pressure (P pa), heart rate (f c), and mean arterial pressure (P a carot) were measured in 17 piglets divided into three groups: group 1 (n = 6), bolus application (CO₂ embolization, followed by air embolization, 2 mL/kg each), group 2 (n = 7), continuous air embolization (30 min, 0.2 mL/kg/min), and group 3 (n = 4), continuous CO₂ embolization (30 min, 0.4 mL/kg/min).

RESULTS

All animals survived CO₂ embolism. Air embolization as a bolus (2 mL/kg) or with an accumulated volume of 3.1 mL/kg led to death. Decreases in [Formula: see text] indicated air or massive CO₂ embolization only. There was a good correlation between [Formula: see text] and P pa in case of air embolization (r = -0.80, p < 0.0001). In contrast, no dependency was recognized during CO₂ embolism (r = -0.17, p = 0.2).

CONCLUSIONS

In order to minimize the lethal risk of gas embolization, the insufflation system has to be completely filled with CO₂ before connecting to the patient.

Carbon dioxide embolism during laparoscopic surgery

Clinically significant carbon dioxide embolism is a rare but potentially fatal complication of anesthesia administered during laparoscopic surgery. Its most common cause is inadvertent injection of carbon dioxide into a large vein, artery or solid organ. This error usually occurs during or shortly after insufflation of carbon dioxide into the body cavity, but may result from direct intravascular insufflation of carbon dioxide during surgery. Clinical presentation of carbon dioxide embolism ranges from asymptomatic to neurologic injury, cardiovascular collapse or even death, which is dependent on the rate and volume of carbon dioxide entrapment and the patient's condition. We reviewed extensive literature regarding carbon dioxide embolism in detail and set out to describe the complication from background to treatment. We hope that the present work will improve our understanding of carbon dioxide embolism during laparoscopic surgery.

Carbon dioxide embolism during laparoscopic sleeve gastrectomy

Bariatric restrictive and malabsorptive operations are being carried out in most countries laparoscopically. Carbon dioxide or gas embolism has never been reported in obese patients undergoing bariatric surgery. We report a case of carbon dioxide embolism during laparoscopic sleeve gastrectomy (LSG) in a young super obese female patient. Early diagnosis and successful management of this complication are discussed. An 18-year-old super obese female patient with enlarged fatty liver underwent LSG under general anesthesia. During initial intra-peritoneal insufflation with CO(2) at high flows through upper left quadrant of the abdomen, she had precipitous fall of end-tidal CO(2) and SaO(2) % accompanied with tachycardia. Early suspicion led to stoppage of further insufflation. Clinical parameters were stabilized after almost 30 min, while the blood gas analysis was restored to normal levels after 1 h. The area of gas entrainment on the damaged liver was recognized by the surgeon and sealed and the surgery was successfully carried out uneventfully. Like any other laparoscopic surgery, carbon dioxide embolism can occur during bariatric laparoscopic surgery also. Caution should be exercised when Veress needle is inserted through upper left quadrant of the abdomen in patients with enlarged liver. A high degree of suspicion and prompt collaboration between the surgeon and anesthetist can lead to complete recovery from this potentially fatal complication.

Gas embolus and cardiac arrest during laparoscopic pyloromyotomy in an infant

PURPOSE

High volume tubing is used to deliver carbon dioxide during laparoscopic procedures. Failure to prime the tubing with carbon dioxide prior to abdominal insufflation may result in the delivery of nitrogen-containing air to the abdominal cavity. We report a case in which initial insufflation of laparoscopic gas resulted in immediate cardiovascular collapse requiring prolonged resuscitation. Persistent intracranial emboli following the arrest may have resulted from nitrogen contamination of the delivered gas.

CLINICAL FEATURES

A 12-day-old female underwent laparoscopy for pyloric stenosis. During initial insufflation of the abdomen, the patient had an abrupt decrease in end-tidal carbon dioxide (CO(2ET)) associated with bradycardia and pulseless electrical activity. Three hours after successful resuscitation and open pyloromyotomy, computerized tomography documented intra-arterial gas within the cerebral and hepatic circulations that resolved following hyperbaric oxygen therapy. Magnetic resonance imaging five days later revealed watershed infarcts in the right frontal and parietal regions. Nitrogen, an insoluble gas not easily eliminated from the body, was likely the gas present within the patient's circulation several hours after the event. It was unlikely carbon dioxide, which is a highly soluble gas that binds to hemoglobin and is rapidly buffered by the carbonic anhydrase system and excreted by the lung. Room air contamination of high volume insufflation tubing allows nitrogen to enter body cavities during endoscopic procedures.

CONCLUSION

Persistence of emboli following endoscopic procedures suggests that the entrained gas is insoluble. Room air contamination increases the potential for catastrophic events during laparoscopy and other endoscopic procedures.

Carbon dioxide embolism in a 3-week-old neonate during laparoscopic pyloromyotomy: a case report

Laparoscopic pyloromyotomy has gained popularity in the treatment of hypertrophic pyloric stenosis. This is the first case report of carbon dioxide embolism during laparoscopic pyloromyotomy. We describe a case of carbon dioxide embolism in a 3-week-old neonate during laparoscopic pyloromyotomy by injection of carbon dioxide into a patent umbilical vein. The diagnosis of carbon dioxide embolism was made on the basis of the abrupt decrease in end-tidal CO(2), sudden decreased Spo(2), hypotension, and cyanosis. Portable x-ray with the clinical presentation was sufficient for a diagnosis of carbon dioxide embolism. Treatment included termination of CO(2) insufflation, placing the patient in Durant's position, and adequate resuscitation as necessary. Despite the fact that the insufflation pressure was in the recommended range, a carbon dioxide embolism was thought to be caused by injection of carbon dioxide into a patent umbilical vein. Although laparoscopic pyloromyotomy has demonstrated to be a safe and effective procedure, this is a serious and rare complication causing prolonged length of stay and skewed hospital charges.