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Minimally invasive laparoscopic and robot-assisted emergency treatment of strangulated giant hiatal hernias: report of five cases and literature review
World Journal of Emergency Surgery volume 15, Article number: 37 (2020)
Giant hiatal hernia (GHH) is a condition where one-third of the stomach migrates into the thorax. Nowadays, laparoscopic treatment gives excellent postoperative outcomes. Strangulated GHH is rare, and its emergent repair is associated with significant morbidity and mortality rates. We report a series of five cases of strangulated GHH treated by a minimally invasive laparoscopic and robot-assisted approach, together with a systematic review of the literature.
During 10 years (December 2009–December 2019), 31 patients affected by GHH were treated by robot-assisted or conventional laparoscopic surgical approach. Among them, five cases were treated in an emergency setting. We performed a PubMed MEDLINE search about the minimally invasive emergent treatment of GHH, selecting 18 articles for review.
The five cases were male patients with a mean age of 70 ± 18 years. All patients referred to the emergency service complaining of severe abdominal and thoracic pain, nausea and vomiting. CT scan and endoscopy were the main diagnostic tools. All patients showed stable hemodynamic conditions so that they could undergo a minimally invasive attempt. The surgical approach was robotic-assisted in three patients (60%) and laparoscopic in two (40%). Patients reported no complications or recurrences.
Reviewing current literature, no general recommendations are available about the emergent treatment of strangulated hiatal hernia. Acute mechanical outlet obstruction, ischemia of gastric wall or perforation and severe bleeding are the reasons for an emergent surgical indication. In stable conditions, a minimally invasive approach is often feasible. Moreover, the robot-assisted approach, allowing a stable 3D view and using articulated instruments, represents a reasonable option in challenging situations.
Paraesophageal hernias represent 5 to 10% of all hiatal hernias (HH), and their incidence is increasing mainly because of the ageing of the population. They are classified into four types . In type I (sliding HH), there is a widening of the muscular hiatal tunnel and circumferential laxity of the phrenoesophageal membrane, allowing a portion of the gastric cardia to herniate upwards. In type II, the gastric fundus herniates into the thorax, but the gastroesophageal junction maintains its normal position. Type III is the association of type II with the migration of the gastroesophageal junction into the thorax (it represents the 90% of all paraesophageal hernias). Type IV is associated with the migration of other viscera through the hiatus. Giant hiatal hernia (GHH) is a condition in which one-third or more of the stomach migrates into the thorax . Primary GHH can be asymptomatic or can lead to chronic low-grade symptoms, such as heartburn, abdominal pain, early satiety, dysphagia, chest discomfort and dyspnoea. If they are present, there is a clear indication for elective surgical treatment. Severe acute symptoms are very uncommon [3, 4].
Rarely, GHH may present as an acute emergency due to the intrathoracic twisting of the stomach followed by mechanic obstruction. Acute gastric outlet symptoms, haemorrhage (mucosal bleeding of the stomach), gastric ischemia and perforation, are severe sequelae of strangulation or upside-down stomach [5, 6]. All these complications represent real life-threatening conditions, with a high mortality rate (up to 30%) [7, 8]. Other intra-abdominal organs, such as colon, spleen and small intestine, can be involved in the herniation [6, 7].
Since its first description in 1992, laparoscopic approach to symptomatic patients with both HH and GHH has gained broad consent and is now considered the gold standard for elective surgery, given its low mortality and morbidity [2, 7, 9,10,11]. Moreover, it is considered safe also in an emergency setting , especially in clinically stable patients. When available, even the robot-assisted approach may represent a valid option, giving the well-known postoperative benefits of minimally invasive procedures [13, 14]. However, in the case of unfit or unstable patients, the open approach remains mandatory.
Surgical emergency treatment provides the reduction of the migrated stomach with the excision of the hernia sac. The hiatal defect closure (direct or with mesh) may be followed by an anti-reflux procedure (according to Toupet or Nissen) or gastropexy [2, 10, 15, 16]. Nevertheless, prosthetic mesh reinforcement is overall accepted since its introduction has reduced the risk of recurrences [15, 17, 18]. Particular care is mandatory during gastric wall handling. Necrotic gastric wall or perforation may require gastric resection so that a fundoplication should be avoided. Collis-Nissen procedure may be necessary due to the presence of oesophageal shortening [19,20,21].
Compared to elective surgery, emergency procedures are related to a higher risk of morbidity and mortality [22, 23]. No high-level evidence is available about emergency management of this rare condition.
In a recent multi-institutional broad database study from the USA, robotic-assisted repair accounted for the 6% of all emergent cases and 8% of all minimally invasive treated ones . Our aim, along with the evaluation of the feasibility and safety of the robotic-assisted approach, was to infer suggestions from the current literature about the minimally invasive management of GHH in emergency.
During 10 years (December 2009–December 2019), 31 patients underwent surgery for GHH at our centre. All patients were treated using a robot-assisted or conventional laparoscopic surgical approach; the choice of robotic technology depended on the device’s availability. Among them, five cases were treated in an emergency setting because of complicated GHH. No open surgery cases were recorded in the same period. Informed consent for the surgical procedure was always obtained before the treatment.
Table 1 sums up the characteristics of the patients: mean age was 70 ± 18 years (range 47–88), and all patients were male. Most of the patients (60%) had a history of known symptomatic HH; in 3 cases, there was a history of gastroesophageal reflux disease (GERD).
All patients referred to the emergency service complaining of severe abdominal and thoracic pain, nausea and vomiting lasting from some hours (case 2) to 3 days (case 5). Case 5 presented with coffee-ground vomit. In all cases, the examination revealed diffuse abdominal tenderness and incomplete or impossible nasogastric tube progression. Laboratory tests were not specific; nevertheless, in case 3, the elevated white cells count and lactate level, led to the need for ruling out ischemic heart disease.
All patients underwent electrocardiogram, chest X-ray and contrast-enhanced computed tomography (CT) scan of the chest and abdomen. The most common CT scan finding was air-fluid level in the context of a GHH. Most of the cases (80%) underwent endoscopy before surgery, that always showed gastric obstruction, and in case 2 diffuse ischemia of the gastric mucosa. Most of the patients (60%) underwent immediate surgery, except for case 3, where there was a conservative attempt because of the age, and for case 4, in which surgery occurred after 3 days of OAT stop. All patients showed stable hemodynamic conditions so that they could undergo a minimally invasive attempt. The average waiting time from admission to surgery was 1 day (0–3).
The surgical approach was robotic-assisted in 3 patients (60%), laparoscopic in the remaining 2. The Da Vinci Xi Robotic System (Intuitive Surgical, Inc. Sunnyvale, CA, USA) was used. The operation was always carried out by placing ports in the same fashion as an elective hiatoplasty (Fig. 1). The robotic cart was placed at the left side of the patient, at head-height. We placed the camera through the sopra-umbilical port, the monopolar cautery hook through the left one and the bipolar forceps through the middle-right port. The right robotic arm was used to retract the left liver lobe by the needle driver (replaced by another arm when needed for suturing). In robotically treated cases, we also placed an accessory 5-mm port. In laparoscopically treated cases, a 5-mm sub-xiphoidal port was used to retract the liver.
Figures 2, 3, 4, 5 and 6 reproduce imaging and intraoperative findings of the first three cases. The hook was used to lyse the adhesions of the hernia sac with mediastinal structures, while the herniated stomach and omentum were gently reduced in the abdomen. All patients showed type II/III hiatal hernias, with no cases of migration of other viscera through the hiatus. In case 2, the reduction of the hernia content in the abdomen was carried out only after the hiatal defect enlargement using ultrasound scalpel. After the reduction of the hernia content, the sac was removed, and the diaphragmatic crura and oesophagus were isolated. In the first 3 cases, the hiatoplasty was performed with polypropylene 2/0 stitches and non-absorbable pledgets. In the last 2 cases, a BIO-A (Gore & Associates Inc, Newark, DE, USA) resorbable prosthesis and pledgets were employed, secured with resorbable 2/0 stitches.
Four patients (80%) underwent Nissen and Toupet fundoplication: each in two cases, respectively. The choice between the two techniques depended on the obtainment of a floppy gastric valve. In case 2, because of the known ischemia of the gastric mucosa and the evidence of ischemic gastric serosa during the abdominal exploration, an intra-operative endoscopy was requested after the hernia reduction to check for the antrum and pylorus mucosa. After the careful evaluation of the whole stomach blood supply, we avoided gastric resection and fundoplication. In most of the cases (60%), a gastrostomy (cases 2, 3 and 4) secured the stomach to the abdominal wall. Case 5 underwent a gastropexy. The mean operative time was 192 ± 22.8 min.
The postoperative course was uneventful for most of the cases (80%). In case 2, the gastric mucosa ischemia and the difficult intubation led to a 5-day course in the intensive care unit, where the patient was monitored for the gastric perforation risk. The same patient developed antrum stenosis that healed after endoscopic treatment. The mean hospital stay was 9.2 ± 6.9 days (range 4–21).
Follow-up was carried out for a minimum of 6 months, with contrast X-ray of the upper gastrointestinal tract. Patients reported no complications or recurrences, and, when present, gastrostomy tubes were removed after 1 month from the operation.
Review of literature
We performed a PubMed MEDLINE search during January 2020 using the following words: “hiatal hernia” AND “emergency OR emergent OR urgency OR urgent” AND “laparoscopy OR robotic OR minimally invasive”. Of the 77 found articles, we excluded articles not regarding humans (5), not in English (11) and not on adults (5). The 56 resulting papers were further investigated in terms of article design and subject matter excluding case reports and reviews (19) and articles about secondary hiatal hernias or elective procedures only (19); 18 articles were finally reviewed.
Table 2 shows data from the selected articles, reporting the number of patients not electively treated and through a minimally invasive approach. In those articles where it was not possible to obtain information regarding the urgent/emergent laparoscopically treated patients, we reported data from a larger cohort of patients, including those undergoing elective or open surgery.
No randomised trial is available regarding the preoperative workup, nor the timing of surgery, nor the use and type of mesh or additional procedures, such as fundoplication, gastrostomy or gastropexy, so that no strong recommendations can be drawn.
Demographic data suggest no definite difference in sex distribution, although it seems that complicated hiatal hernia mostly affects the seventh and eighth decade [24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41]. The pathophysiology of HH is still unclear: increasing of intra-abdominal pressure and congenital or acquired widening of the diaphragmatic hiatus (weakness of the muscular crura due to elastin, collagens and matrix metalloproteinases abnormalities) are the most likely causes [42,43,44]. In the elderly, indeed, paraesophageal hernia is often asymptomatic, and the debate on whether to treat or not an asymptomatic patient is still active, following the high morbidity and mortality rate in elective repair [4, 10, 16]. Recently, pre-treatment patients’ characteristics were used to create a mortality and significant morbidity predictive model for GHH repair . The 2013 Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) guidelines recommend repair of all symptomatic paraesophageal hernias .
Literature suggests that patients with acute paraesophageal hernia are often overweight/obese (average body mass index from 29 to 30 kg/m2) [25, 35, 41] and with an American Society of Anaesthesiologists (ASA) score of III or higher (69–100%) [25, 27, 41].
Emergency surgery for incarcerated-strangulated GHH is mandatory especially in the presence of the classic Borchardt’s triad, consisting in retching, epigastric pain and failure to place a nasogastric tube. Generally, the patients present acutely with thoracic/abdominal pain and symptoms of mechanical gastric outlet obstruction (20–100%) [25, 27, 29, 31] or upper gastrointestinal bleeding (17–25%) [25, 27]. A chest X-ray should be the first diagnostic tool to rule out other diagnoses and to detect perforating signs [1, 20]. According to the selected articles, respiratory failure [25, 39] or even sepsis and shock [28, 35] are other possible acute presentations that appear to be the evolution of gastric ischemia. These unstable patients are often obliged to undergo immediate open surgery.
A chest-abdominal contrast-enhanced CT scan and upper endoscopy are the most important exams to be performed during the pre-operative workup. Endoscopy should be attempted with the aim of decompressing the stomach, having a direct view of mucosal condition (gastric ischemia), and trying a conservative management. Bleeding and gastric perforation, with septic sequelae, represent the clinical evolution if treatment is delayed.
There are no clear recommendations on the operative management of incarcerated hiatal hernia. Management algorithms for acutely presenting paraesophageal hernia were proposed on the results of a small series of patients . The increased perioperative mortality and morbidity associated with the emergency repair for gastric volvulus and strangulation are reported in many series [22, 45]. Immediate open surgery is suggested in case of unstable patients. In other cases, an initial laparoscopic approach is advisable for trained surgical teams. Emergent laparoscopic HH reduction and repair may be carried out in cases without gastric perforation, with low morbidity rate and with the benefits of a minimally invasive approach [30, 35, 39]. The selected literature reported an average hospital stay of 4–9 days [25,26,27, 29, 35, 39, 41], overall morbidity rate of 0–52% [25, 30, 35] and a recurrence rate of 0–17% [25, 29, 35, 38, 41].
With a few exceptions , a hiatoplasty is always performed with different suture strategies (direct, pledgets and meshes). There is no evidence regarding the advisable use and type of mesh: both synthetic [26, 31, 35, 40, 41] and biologic mesh [25, 35, 37,38,39] have been adopted. About fundoplication, the main factors that influence the decision are gastric fundus tissue condition and the history of GERD. Nissen fundoplication is reported up to 75–100% of cases and is the most common technique [25, 31]. Additional techniques, such as gastrostomy, gastropexy, Collis procedure or gastric resections, are required in selected cases, and this underlines to what extent this surgery is tailored case by case.
Nevertheless, no previous article, among the selected ones, ever reported a predominant robotic approach for the emergent paraesophageal hernia repair. In our case series, age was not an exclusion criterion to minimally invasive approach. We believe that, in the acute setting, the concerns about the postoperative risk of recurrence are negligible compared to the risk of gastric perforation (after gastric vascular sufferance) and the absence of functional study (oesophageal manometry, swallow x-ray exam, etc.). The surgical goals, indeed, appear to be different case by case, and techniques should be carefully tailored.
This study has some limitations: the limited number of cases in our experience prevents from drawing any general conclusion; moreover, no open procedures were accounted both in emergency and in elective setting, so any comparison was not possible. Still, the selected literature shows the absence of comprehensive data about the outcome after emergent robotic-assisted repair of GHH.
The robotic-assisted approach in acute paraesophageal hernia repair may give advantages compared to conventional laparoscopy, for what concerns the surgeon’s comfort and precision, and this is probably unique in emergency surgery. However, its use mainly depends on device availability and the surgical team’s experience.
We can conclude, on the basis of current literature, that it is challenging to stigmatise recommendations for the management of GHH in an emergency setting. In many cases, a minimally invasive approach is possible and safe, with good peri- and postoperative outcomes. Robotic surgery may represent an appealing option to ease some surgical steps as dissection, abdominal reduction and suturing.
Availability of data and materials
All data generated or analysed during this study are included in this published article.
Giant hiatal hernia
Gastroesophageal reflux disease
Oral anticoagulant therapy
Society of American Gastrointestinal and Endoscopic Surgeons
American Society of Anaesthesiologists
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Ceccarelli, G., Pasculli, A., Bugiantella, W. et al. Minimally invasive laparoscopic and robot-assisted emergency treatment of strangulated giant hiatal hernias: report of five cases and literature review. World J Emerg Surg 15, 37 (2020). https://doi.org/10.1186/s13017-020-00316-1
- Giant hiatal hernia
- Paraesophageal hernia
- Emergency surgery
- Robotic surgery