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Diseases of the Esophagus : Official... Jun 2022Diaphragmatic herniation is a rare complication following esophagectomy, associated with risks of aspiration pneumonia, bowel obstruction, and strangulation. Repair can... (Meta-Analysis)
Meta-Analysis
OBJECTIVE
Diaphragmatic herniation is a rare complication following esophagectomy, associated with risks of aspiration pneumonia, bowel obstruction, and strangulation. Repair can be challenging due to the presence of the gastric conduit. We performed this systematic review and meta-analysis to determine the incidence and risk factors associated with diaphragmatic herniation following esophagectomy, the timing and mode of presentation, and outcomes of repair.
METHODS
A systematic search using Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines was performed using four major databases. A meta-analysis of diaphragmatic herniation incidence following esophagectomies with a minimally invasive abdominal (MIA) approach compared with open esophagectomies was conducted. Qualitative analysis was performed for tumor location, associated symptoms, time to presentation, and outcomes of postdiaphragmatic herniation repair.
RESULTS
This systematic review consisted of 17,052 patients from 32 studies. The risk of diaphragmatic herniation was 2.74 times higher in MIA esophagectomy compared with open esophagectomy, with pooled incidence of 6.0% versus 3.2%, respectively. Diaphragmatic herniation was more commonly seen following surgery for distal esophageal tumors. Majority of patients (64%) were symptomatic at diagnosis. Presentation within 30 days of operation occurred in 21% of cases and is twice as likely to require emergent repair with increased surgical morbidity. Early diaphragmatic herniation recurrence and cardiorespiratory complications are common sequelae following hernia repair.
CONCLUSIONS
In the era of MIA esophagectomy, one has to be cognizant of the increased risk of diaphragmatic herniation and its sequelae. Failure to recognize early diaphragmatic herniation can result in catastrophic consequences. Increased vigilance and decreased threshold for imaging during this period is warranted.
Topics: Esophageal Neoplasms; Esophagectomy; Hernia, Diaphragmatic; Humans; Laparoscopy; Minimally Invasive Surgical Procedures; Postoperative Complications; Retrospective Studies
PubMed: 34549284
DOI: 10.1093/dote/doab066 -
International Journal of Surgery... Sep 2021Post-esophagectomy hiatal hernia (PEHH) is a known, but relatively uncommon, complication after esophagectomies. The incidence of PEHH seems to be increasing since the... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Post-esophagectomy hiatal hernia (PEHH) is a known, but relatively uncommon, complication after esophagectomies. The incidence of PEHH seems to be increasing since the introduction of minimally invasive esophagectomy. This systematic review and meta-analysis aimed to determine the pooled incidence of PEHH after esophagectomy, and to evaluate if minimally invasive technique is associated with increased risk for PEHH compared to open esophagectomy.
METHODS
A systematic search of PubMed, Medline via Ovid and Web of Science was performed. Retrospective and prospective studies in English language describing the incidence or risk factors for PEHH were included. Weighted incidence of PEHH after all types of esophagectomy, and after open or minimally invasive technique was calculated.
RESULTS
A total of 7943 esophagectomy patients were included in the analysis. In total, 310 patients (3.9%) were diagnosed with PEHH. The estimated weighted incidence rate for PEHH after open esophagectomy was 0.024 (95% confidence interval: 0.012-0.045) compared to 0.065 (95% confidence interval: 0.040-0.106) after minimally invasive esophagectomy. Odds ratio for PEHH after minimally invasive esophagectomy compared to open esophagectomy was 2.76 (95% confidence interval: 1.49-5.11).
CONCLUSION
The risk for post-esophagectomy hiatal hernia was significantly higher after minimally invasive esophagectomy compared to open technique. Heterogeneity and retrospective designs of the included studies were important limitations of the analysis. Future studies should investigate preventive measures to reduce PEHH after minimally invasive esophagectomy.
Topics: Esophageal Neoplasms; Esophagectomy; Hernia, Hiatal; Humans; Laparoscopy; Minimally Invasive Surgical Procedures; Postoperative Complications; Prospective Studies; Retrospective Studies; Treatment Outcome
PubMed: 34411750
DOI: 10.1016/j.ijsu.2021.106046 -
The Journal of Surgical Research Dec 2021Traumatic diaphragmatic hernia (TDH) is rare in children, most often occurring following blunt thoracoabdominal trauma from high energy mechanisms, such as motor vehicle...
BACKGROUND
Traumatic diaphragmatic hernia (TDH) is rare in children, most often occurring following blunt thoracoabdominal trauma from high energy mechanisms, such as motor vehicle collisions (MVC). We performed a systematic review to describe injury details and management.
METHODS
Following PRISMA guidelines, a systematic literature search was performed to identify publications of blunt TDH in patients < 18 y old. Conflicts were resolved by consensus. Data were collected on demographics, TDH location, mechanism of injury, associated intraabdominal injuries (IAI), management, and outcomes. Denominators vary depending on number of patients with such information reported.
RESULTS
Fifty-eight articles were reviewed with 142 patients with TDH. The median age was seven y (range 0.25-16). Most were left-sided (85 of 126, 67.5%). MVC was the most common mechanism (66 of 142, 46.5%). IAI was present in 50.0% (57 of 114), most commonly liver injuries (25 of 57, 43.9%). Delayed diagnoses occurred in 49.6% (57 of 115, range 8 h-10 y), and were more common with right-sided TDH (76.0% versus 48.5%, P = 0.02). Chest radiography was 59.0% sensitive for TDH, while computed tomography sensitivity was 65.8%. Operative repair was performed on all surviving patients, and all underwent primary diaphragm repair. The overall mortality was 11.3% (n = 16), with four attributable to the TDH. There were no reported recurrences over a median follow-up of 12 mo.
CONCLUSIONS
Pediatric TDH is a rare diagnosis with a high rate of associated IAI and delayed diagnosis. Primary diaphragm repair was performed in all cases. Surgeons should maintain a high suspicion for diaphragm injury in blunt thoracoabdominal trauma.
Topics: Abdominal Injuries; Child; Diaphragm; Hernia, Diaphragmatic, Traumatic; Humans; Thoracic Injuries; Wounds, Nonpenetrating
PubMed: 34392178
DOI: 10.1016/j.jss.2021.07.011 -
Diagnostics (Basel, Switzerland) Jul 2021Since the first report of a diaphragmatic hernia from Ambroise Paré's necropsy in 1610, the Bochdalek hernia (BH) of the congenital diaphragmatic hernia (CDH) has been... (Review)
Review
BACKGROUND
Since the first report of a diaphragmatic hernia from Ambroise Paré's necropsy in 1610, the Bochdalek hernia (BH) of the congenital diaphragmatic hernia (CDH) has been the most common types with high morbidity and mortality in the neonatal period. Due to the nature of the disease, CDH associated with pregnancy is too infrequent to warrant reporting in the literature. Mortality of obstruction or strangulation is mostly due to failure to diagnose symptoms early.
DATA SOURCES AND STUDY SELECTION
A systematic literature search of maternal BH during pregnancy was conducted using the electronic databases (PubMed and EMBASE) from January 1941 to December 2020. Because of the rarity of the disease, this review included all primary studies, including case reports or case series that reported at least one case of maternal BH in pregnant. Searches, paper selection, and data extraction were conducted in duplicate. The analysis was performed narratively regardless of the control groups' presence due to their rarity.
RESULTS
The search retrieved 3450 papers, 94 of which were deemed eligible and led to a total of 43 cases. Results of treatment showed 16 cases in delayed delivery after hernia surgery, 10 cases in simultaneous delivery with hernia surgery, 3 cases in non-surgical treatment, and 14 cases in hernia surgery after delivery. Of 16 cases with delayed delivery after hernia surgery, 13 (81%) cases had emergency surgery and three (19%) cases had surgery after expectant management. Meanwhile, 10 cases underwent simultaneous delivery with hernia surgery, 6 cases (60%) had emergent surgery, and 4 cases (40%) had delayed hernia surgery after expectant management. 3 cases underwent non-surgical treatment. In this review, the maternal death rate and fetal/neonatal loss rate from maternal BH was 5% (2/43) and 16% (7/43), respectively. The preterm birth rate has been reported in 35% (15/43) of maternal BH, resulting from maternal deaths in 13% (2/15) of cases and 6 fetal loss in 40% (6/15) of cases; 44% (19/43) of cases demonstrated signs of bowel obstruction, ischemia, or perforation of strangulated viscera in the operative field, resulting from maternal deaths in 11% (2/19) of cases and fetal-neonatal loss in 21% (4/19) of cases.
CONCLUSION
Early diagnosis and surgical intervention are imperative, as a gangrenous or non-viable bowel resection significantly increases mortality. Therefore, multidisciplinary care should be required in maternal BH during pregnancies that undergo surgically repair, and individualized care allow for optimal results for the mother and fetus.
PubMed: 34359342
DOI: 10.3390/diagnostics11071261 -
Obesity Surgery Sep 2021Hiatal hernia repair (HHR) during sleeve gastrectomy (SG) is recommended when hiatal hernia (HH) is found intraoperatively. However, its effect on gastroesophageal... (Meta-Analysis)
Meta-Analysis
Effect of Concomitant Laparoscopic Sleeve Gastrectomy and Hiatal Hernia Repair on Gastroesophageal Reflux Disease in Patients with Obesity: a Systematic Review and Meta-analysis.
BACKGROUND
Hiatal hernia repair (HHR) during sleeve gastrectomy (SG) is recommended when hiatal hernia (HH) is found intraoperatively. However, its effect on gastroesophageal reflux disease (GERD) remains controversial.
OBJECTIVE
To evaluate the effect of concomitant SG and HHR on GERD in patients with obesity.
METHODS
Web of Science, PubMed, Embase, the Cochrane Library, and ClinicalTrials.gov databases were searched for all studies reporting the efficacy of SG+HHR for patients with obesity and GERD up to March 2021.
RESULTS
A total of 18 studies totaling 937 patients met the inclusion criteria. The results of meta-analysis showed that after SG+HHR, there was a significant reduction in GERD symptoms (OR: 0.20; 95% CI: 0.10 to 0.41; P < 0.00001), improvement in esophagitis (OR: 0.12, 95% CI: 0.05 to 0.26, P < 0.001), and decrease in GERD-HRQL (MD: 19.13, 95% CI: -3.74 to 34.51; P=0.01). The incidence of GERD remission after SG+HHR was 68.0% (95% CI: 55.0-80.9%), de novo GERD was 12% (95% CI: 8-16%), and HH recurrence was 11% (95% CI: 4 to 19%). SG+HHR was superior to SG alone in GERD remission (OR: 2.97, 95% CI: 1.78 to 4.95, P < 0.0001). However, there was no significant difference in de novo GERD after SG+HHR compared with SG alone.
CONCLUSIONS
SG+HHR can positively affect weight loss, GERD resolution, esophagitis reduction, and GERD-HRQL improvement. SG+HHR seems to have a promising future in patients with obesity and GERD. However, further studies based on objective assessment are warranted to evaluate these results better.
Topics: Gastrectomy; Gastroesophageal Reflux; Hernia, Hiatal; Herniorrhaphy; Humans; Laparoscopy; Obesity; Obesity, Morbid; Retrospective Studies; Treatment Outcome
PubMed: 34254259
DOI: 10.1007/s11695-021-05545-0 -
Pediatric Research Apr 2022There is no consensus on the optimal pCO levels in the newborn. We reviewed the effects of hypercapnia and hypocapnia and existing carbon dioxide thresholds in neonates.... (Review)
Review
There is no consensus on the optimal pCO levels in the newborn. We reviewed the effects of hypercapnia and hypocapnia and existing carbon dioxide thresholds in neonates. A systematic review was conducted in accordance with the PRISMA statement and MOOSE guidelines. Two hundred and ninety-nine studies were screened and 37 studies included. Covidence online software was employed to streamline relevant articles. Hypocapnia was associated with predominantly neurological side effects while hypercapnia was linked with neurological, respiratory and gastrointestinal outcomes and Retinpathy of prematurity (ROP). Permissive hypercapnia did not decrease periventricular leukomalacia (PVL), ROP, hydrocephalus or air leaks. As safe pCO ranges were not explicitly concluded in the studies chosen, it was indirectly extrapolated with reference to pCO levels that were found to increase the risk of neonatal disease. Although PaCO ranges were reported from 2.6 to 8.7 kPa (19.5-64.3 mmHg) in both term and preterm infants, there are little data on the safety of these ranges. For permissive hypercapnia, parameters described for bronchopulmonary dysplasia (BPD; PaCO 6.0-7.3 kPa: 45.0-54.8 mmHg) and congenital diaphragmatic hernia (CDH; PaCO ≤ 8.7 kPa: ≤65.3 mmHg) were identified. Contradictory findings on the effectiveness of permissive hypercapnia highlight the need for further data on appropriate CO parameters and correlation with outcomes. IMPACT: There is no consensus on the optimal pCO levels in the newborn. There is no consensus on the effectiveness of permissive hypercapnia in neonates. A safe range of pCO of 5-7 kPa was inferred following systematic review.
Topics: Carbon Dioxide; Humans; Hypercapnia; Hypocapnia; Infant, Newborn; Infant, Premature; Infant, Premature, Diseases; Respiration, Artificial
PubMed: 34230621
DOI: 10.1038/s41390-021-01473-y -
Hernia : the Journal of Hernias and... Feb 2022Bochdalek hernia is a congenital diaphragmatic hernia. The incidence in adults is estimated around 0.17%. Right-sided hernias are much more seldom than left-sided ones... (Review)
Review
PURPOSE
Bochdalek hernia is a congenital diaphragmatic hernia. The incidence in adults is estimated around 0.17%. Right-sided hernias are much more seldom than left-sided ones because of faster closure of the right pleuroperitoneal canal and the protective effect of the liver. Due to its rarity, there have been no large prospective or retrospective studies following great need for evidence-based diagnostics and treatment strategies. In this systematic review, we evaluated the current evidence of diagnostics, treatment, and follow-up of adult right-sided Bochdalek hernias.
METHODS
According to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines a systematic literature review was conducted in PubMed and Cochrane library from 2004 to January 2021. The literature search included all studies with non-traumatic right-sided Bochdalek hernias. Literature on left- or both-sided, pregnancy-associated, pediatric, and other types of hernias were explicitly excluded. Quality assessment of the included studies was performed.
RESULTS
Database search identified 401 records. After eligibility screening 41 studies describing 44 cases of right-sided non-traumatic Bochdalek hernias in adulthood were included for final analysis. Based upon the systematic literature review, the current diagnostic, therapeutic, and follow-up management pathway for this rare surgical emergency is presented.
CONCLUSION
This systematic review underlined that most studies investigating management of adult non-traumatic right-sided Bochdalek hernias are of moderate to low methodological quality. Hernias tend to occur more frequently in middle-aged and older women presenting with abdominal pain and dyspnea. A rapid and accurate diagnosis following surgical repair and regular follow-up is mandatory. High-quality studies focusing on the management of this rare entity are urgently needed.
Topics: Abdomen; Adult; Aged; Child; Female; Hernias, Diaphragmatic, Congenital; Herniorrhaphy; Humans; Middle Aged; Pregnancy; Prospective Studies; Retrospective Studies
PubMed: 34216313
DOI: 10.1007/s10029-021-02445-1 -
Hernia : the Journal of Hernias and... Feb 2022Barriers to education in open and laparoscopic hernia repair technique include a steep learning curve and reduced theatre time for junior surgical trainees. This is... (Review)
Review
PURPOSE
Barriers to education in open and laparoscopic hernia repair technique include a steep learning curve and reduced theatre time for junior surgical trainees. This is particularly evident during the current COVID-19 pandemic. Simulation models may provide further opportunities for training in hernia repair outside of the traditional surgical apprenticeship model.
METHODS
A systematic review was carried out following PRISMA guidelines to identify and evaluate simulation models in hernia repair. Of the 866 records screened, 27 were included in the analysis. These were assessed for face, content and construct validity, as well as their attempt to measure educational impact.
RESULTS
Simulation models were identified comprising of animal tissues, synthetic materials and virtual reality (VR) technology. Models were designed for instruction in repair of inguinal, umbilical, incisional and diaphragmatic hernias. Twenty-one laparoscopic hernia repair models were described. Many models demonstrated validity across several domains, and three showed transferability of skills from simulation to the operating room. Of the six open hernia repair simulation models, none were found to have demonstrated an educational impact in addition to assessing validity.
CONCLUSION
Few models individually were able to demonstrate validity and educational impact. Several novel assessment tools have been developed for assessment of progress when performing simulated and real laparoscopic inguinal hernia repair. More study is required, particularly for open hernia repair, including randomized controlled trials with large sample sizes to assess the transferability of skills.
Topics: Animals; Hernia, Inguinal; Herniorrhaphy; Humans; Laparoscopy; Simulation Training
PubMed: 34213680
DOI: 10.1007/s10029-021-02442-4 -
World Journal of Surgery Oct 2021Morgagni's hernia (MH) is defined by the protrusion of abdominal viscera through an anterior retrosternal diaphragmatic defect. The objective of this study was to... (Review)
Review
BACKGROUND
Morgagni's hernia (MH) is defined by the protrusion of abdominal viscera through an anterior retrosternal diaphragmatic defect. The objective of this study was to systematically review current literature on MHs in adult population and assess their clinical characteristics and therapeutic approach.
METHODS
PubMed and Cochrane bibliographical databases were searched (last search: 15 January 2021) for studies concerning MHs.
RESULTS
Inclusion criteria were met by 189 studies that included 310 patients (61.0% females) with an age of 57.37 ± 18.41 (mean ± SD) years. Pulmonary symptoms, abdominal pain, and nausea-vomit were among the most frequent symptomatology. MHs were predominantly right-sided (84.0%), with greater omentum (74.5%) and transverse colon (65.1%) being the most commonly herniated viscera. The majority of cases underwent an open procedure, while 42.3% of patients had a minimally invasive procedure. Abdominal approach was mostly preferred, while a thoracic one was chosen at 20.6% of cases and a thoracoabdominal at 3.2%. Thirty-day postoperative complications were recorded at 29 patients and 30-day mortality was 2.3%.
CONCLUSIONS
MH is a rare type of congenital diaphragmatic hernia which rarely manifests in adult population with atypical pulmonary and gastrointestinal symptoms. Surgery is the gold standard for their management. Open surgical approach is preferable in emergency cases, while laparoscopic surgery is favored in elective setting and is associated with shorter hospitalization. Further studies are crucial in order to elucidate etiology and optimal therapeutic approach.
Topics: Adult; Aged; Colon, Transverse; Elective Surgical Procedures; Female; Hernias, Diaphragmatic, Congenital; Humans; Laparoscopy; Male; Middle Aged; Postoperative Complications
PubMed: 34159404
DOI: 10.1007/s00268-021-06203-3 -
Scientific Reports Jun 2021Large studies comparing the surgical outcome of primary versus patch repair in congenital diaphragmatic hernia (CDH) patients are rare. This study aims to evaluate the... (Meta-Analysis)
Meta-Analysis
Large studies comparing the surgical outcome of primary versus patch repair in congenital diaphragmatic hernia (CDH) patients are rare. This study aims to evaluate the incidence of surgical complications in both types of CDH repair. PubMed, EMBASE, Cochrane and Web of Science were searched for peer-reviewed articles. Studies on CDH between 1991 and August 2020 were systematically screened and meta-analyses were performed. Primary outcomes of this review were: haemorrhage, chylothorax, recurrences and small bowel obstruction (SBO). A total of 6436 abstracts were screened, after which 25 publications were included (2910 patients). Patch repaired patients have a 2.8 times higher risk on developing a recurrence (20 studies) and a 2.5 times higher risk on developing a chylothorax (five studies). Moreover, they have a two times higher risk on developing a SBO. No studies could be included that evaluated the incidence of surgical haemorrhage between these patients. Although the quality of the studies was relatively low, patch repaired patients have a higher risk on developing a recurrence, chylothorax and small bowel obstruction. Large prospective studies are required to adjust for severity of disease, to reveal the true causative factors in order to minimize the risk on these surgical complications in both types of patients.
Topics: Chylothorax; Hernias, Diaphragmatic, Congenital; Herniorrhaphy; Humans; Incidence; Infant, Newborn; Intestinal Obstruction; Male; Morbidity; Postoperative Complications; Risk Factors; Treatment Outcome
PubMed: 34135386
DOI: 10.1038/s41598-021-91908-7