Incisional hernia repair in rats: description of the sublay technique under videomagnification system

Purpose: To describe the technique of sublay correction of incisional hernia in Wistar rats under videomagnification system. Methods: Five male rats of the species Rattus norvegicus, of the Wistar lineage, with body weight between 250­350 g and 60 days old were used. Incisional hernia was inducted in all animals. After that, the incisional hernia was immediately corrected by the sublay method. Results: There were no cases of recurrence of the incisional hernia after placement of the polypropylene mesh using the sublay technique. No postoperative complications were observed. Conclusions: The technique is suitable for execution in Wistar rats.

Congenital Dual Internal Hernias Causing Small Bowel Obstruction in a Man with no Prior Surgical History: A Report of a Very Rare Case.

BACKGROUND Internal hernias involve protrusion of the small bowel through a peritoneal or mesenteric space in the abdominal or pelvic cavity. Congenital internal small bowel hernias are rare and patients with them usually present with small bowel obstruction (SBO) at a young age, whereas in older patients, internal small bowel hernias usually are acquired secondary to previous surgery. The present report is of a rare case of SBO due to dual congenital internal small bowel hernias in a 51-year-old man with no history of abdominal surgery. CASE REPORT We report a case of dual congenital internal hernias of the small bowel in a patient who presented with symptoms and signs of SBO. He had no history of abdominal trauma, surgery, or comorbid conditions. His abdomen was mildly distended with minimal tenderness in the upper left quadrant but there was no guarding or rebound tenderness. Abdominal X-rays confirmed the SBO. A contrast-enhanced computed tomography scan of the patient's abdomen revealed SBO with transition at 2 points, suggestive of a closed-loop obstruction. However, the exact cause of the SBO was confirmed at laparotomy, which revealed dual internal hernias (intramesosigmoid and paraduodenal). The hernias were managed individually and the patient had a successful outcome after surgery. CONCLUSIONS Although the present report is of a rare presentation of internal small bowel hernia, the case underscores that patients with this condition may present with SBO. Successful surgical management requires knowledge of the intra-abdominal peritoneal spaces and management of the hernia sac.

Small bowel obstruction secondary to a pericecal hernia in an adult patient, an extremely rare condition.

Internal hernias are defined by the protrusion of an abdominal organ through a peritoneal or mesenteric aperture. They are responsable for up to 5.8% of all small bowel obstructions (SBOs). Pericecal hernia is a highly unusual variation. We present a case of a 17-year-old Asian male turned to the emergency department due to abrupt abdominal pain and peritonitis. An emergent laparotomy revealed a small bowel herniation through the avascular space of Treves with small bowel necrosis. A pericecal hernia is an extremely unusual clinical entity; however, it should be considered in the differential diagnosis of SBO.

ANTECEDENTES: La hernia interna se define como la protrusión de un órgano abdominal a través de un orificio peritoneal o mesentérico. Las hernias son causa de hasta el 5% de las obstrucciones de intestino delgado. La hernia pericecal es un subtipo extremadamente infrecuente. Presentamos el caso de un varón asiático de 17 años que acudió a nuestro centro por un cuadro de abdomen agudo con dolor y peritonitis. Durante la laparotomía se evidenció la herniación del intestino delgado a través del espacio avascular de Treves, con necrosis del mismo. La hernia pericecal es un subtipo extremadamente raro, pero que debemos plantearnos en el diagnóstico diferencial del síndrome de obstrucción intestinal.

Hernia lumbar del espacio de Grynfelt. A propósito de un caso / Lumbar hernia of the Grynfelt space. Apropos of a case

RESUMEN La hernia lumbar del espacio de Grynfelt, pese a que es la más frecuente de los dos tipos de hernias lumbares, es un defecto raro de la pared abdominal posterior. Su diagnóstico se hace difícil por su relativa poca frecuencia. Los médicos no piensan seriamente en esta variedad de hernia, aunque constituye una patología en la que el diagnóstico, al igual que el resto de las hernias de la pared abdominal, es esencialmente clínico. Se presentó un caso tipo de hernia poco frecuente. Una paciente de 32 años con antecedentes de salud, que hacía 3 meses comenzó a quejarse de dolor en la región lumbar y notó la presencia de una masa pequeña en esa misma región. Acudió a la consulta de Cirugía por este motivo y posterior a los estudios correspondientes se le realizó hernioplastia lumbar (AU).

ABSTRACT Lumbar hernia of the Grynfelt space, although it is the most frequent of the two kinds of lumbar hernias, is a rare posterior abdominal wall defect. Its diagnosis is difficult because of its low frequency. Doctors do not think about this illness because it is very infrequent, though it is a disease that, like the rest of abdominal wall hernia, is mainly clinically diagnosed. The authors presented a typically infrequent case of hernia. A female patient, aged 32 years, with health antecedents, referred that three months ago she began to feel pain in the lumbar region and noticed the presence of a little mass in that region. For that reason she assisted the consultation of Surgery and, after being correspondently studied, she underwent a lumbar hernioplasty (AU).

Hernia de Spiegel. A propósito de un caso / Spiegelian hernia. A propos of a case

RESUMEN La hernia de Spiegel es un defecto raro de la pared abdominal. Su diagnóstico se hace muy difícil por lo infrecuente y por la dificultad para diferenciarla de la hernia inguinal supravesical. Precisamente, por lo poco común, los médicos muchas veces no valoran seriamente la presencia de esta variedad de hernia. Constituye una patología en la que el diagnóstico al igual que el resto de las hernias de la pared abdominal, es esencialmente clínico. El objetivo de este trabajo es informar un caso con un tipo de hernia poco común. Paciente de 50 años de edad, de color de piel blanca, obesa, multípara de procedencia urbana, con antecedentes personales patológico de relativa buena salud. Acudió a consulta por presentar dolor en la región inferior derecha, en la unión del flanco derecho con el mesogastrio, desde hacía varios meses. Fue diagnosticada con una hernia de Spiegel. Se le realizaron los estudios correspondientes fue intervenida quirúrgicamente realizándose hernioplastia (AU).

ABSTRACT Spiegelian hernia is a rare defect of the abdominal wall. Its diagnosis is very difficult because of its infrequency and the difficult of differentiating it from the supravesical inguinal hernia. Precisely due to its infrequence the doctors usually do not seriously evaluate the presence of this kind of hernia. It is a pathology in which, like in the rest of the abdominal wall hernias, the diagnosis is essentially clinical. The aim of this work is to report a case of a patient with an uncommon kind of hernia: a female, obese, multiparous, white patient, aged 50 years, from urban precedence, with personal pathological antecedents of relatively good health, assisted the consultation presenting pain in the right inferior region, in the place where the right flank meets the mesogastrium for several months. She was diagnosed a Spiegel's hernia. The correspondent studies were carried out and she underwent a hernioplasty (AU).

Hernia de Spiegel. A propósito de un caso / Spiegelian hernia. A propos of a case

RESUMEN La hernia de Spiegel es un defecto raro de la pared abdominal. Su diagnóstico se hace muy difícil por lo infrecuente y por la dificultad para diferenciarla de la hernia inguinal supravesical. Precisamente, por lo poco común, los médicos muchas veces no valoran seriamente la presencia de esta variedad de hernia. Constituye una patología en la que el diagnóstico al igual que el resto de las hernias de la pared abdominal, es esencialmente clínico. El objetivo de este trabajo es informar un caso con un tipo de hernia poco común. Paciente de 50 años de edad, de color de piel blanca, obesa, multípara de procedencia urbana, con antecedentes personales patológico de relativa buena salud. Acudió a consulta por presentar dolor en la región inferior derecha, en la unión del flanco derecho con el mesogastrio, desde hacía varios meses. Fue diagnosticada con una hernia de Spiegel. Se le realizaron los estudios correspondientes fue intervenida quirúrgicamente realizándose hernioplastia.

ABSTRACT Spiegelian hernia is a rare defect of the abdominal wall. Its diagnosis is very difficult because of its infrequency and the difficult of differentiating it from the supravesical inguinal hernia. Precisely due to its infrequence the doctors usually do not seriously evaluate the presence of this kind of hernia. It is a pathology in which, like in the rest of the abdominal wall hernias, the diagnosis is essentially clinical. The aim of this work is to report a case of a patient with an uncommon kind of hernia: a female, obese, multiparous, white patient, aged 50 years, from urban precedence, with personal pathological antecedents of relatively good health, assisted the consultation presenting pain in the right inferior region, in the place where the right flank meets the mesogastrium for several months. She was diagnosed a Spiegel's hernia. The correspondent studies were carried out and she underwent a hernioplasty.

Hernia de Petit congénita en un escolar. Reparación con malla protésica. Reporte de caso / Congenital Petit's hernia in a Escolar. Prosthetic Mesh Repair. Case Report

Resumen Introducción: La hernia lumbar de pared abdominal congénita es una condición rara, existen alrededor de 50 casos publicados en la literatura inglesa; se clasifican según su sitio anatómico de aparición: en triángulo lumbar superior e inferior. Caso clínico: Paciente masculino, 6 años de edad, presenta masa en región lumbar izquierda, congénita, reducible, tamaño de 10 x 8 cm. El ultrasonido abdominal mostró defecto herniario compatible con hernia de Petit congénita. Se realizó reducción del saco herniario con plastía anterior y colocación de malla protésica en el defecto. Discusión: El triángulo de Grynfelt-Lesshaft es más grande y constante que el de Petit, este último representa el lugar menos común de localización. Se describen varias técnicas de reparación, pero la hernioplastía anterior es la más recomendada. Conclusiones: La hernia lumbar debe considerarse como diagnóstico diferencial en todo recién nacido que presenta masa en flanco izquierdo o derecho al nacimiento, con presencia o ausencia de otra malformación. El diagnóstico temprano evita complicaciones y permite el tratamiento oportuno, ofreciendo una mejor calidad de vida al paciente.

Introduction: The abdominal wall congenital lumbar hernia is a rare condition, There are around 50 cases describe in the English literature. These are classified according to their anatomical site of appearance, upper or lower lumbar triangle. Case presentation: A 6-year-old male patient presented congenital left mass in the lumbar region, reductible, size 10 x 8 cm; during abdominal ultrasound, hernia was compatible with Petits congenital hernia. A reduction of the hernial sack with anterior plasty and placement of the prosthetic mesh at the defect site was performed. Discussion: The triangle of Grynfelt-Lesshaft, is larger and more constant than the triangle of Petit, the latter represents the least common location. Several repair techniques are described, but anterior hernioplasty is the most recommended. Conclusion: Lumbar hernia should be considered as a differential diagnosis in all newborns with protruding mass on the left or right flank at birth, accompanied or not by another obvious or non-evident malformation. Early diagnosis avoids possible complications and allows for opportune treatment, allowing the patient a better lifestyle.

Preoperative progressive pneumoperitoneum in obese patients with loss of domain hernias.

BACKGROUND: Repair of hernias with loss of domain in obese patients can lead to acute respiratory failure. OBJECTIVES: The objective of this study was to analyze preoperative progressive pneumoperitoneum (PPP) in increasing abdominal cavity volume and its impact on respiratory function. SETTING: The study was conducted at the University Hospital, State University of Londrina, Brazil, which is a referral center for the treatment of obesity. The patients were hospitalized for the duration of the study. METHODS: Sixteen obese patients were evaluated. Computed tomography was used to determine hernia sac volume (HSV) and abdominal cavity volume (ACV). Respiratory function was evaluated by measuring vital capacity and forced expiratory volume in the first second (FEV-1). All data were obtained before PPP, on the day before surgery, and on the second postoperative day. PPP was performed daily with insufflation of CO2. RESULTS: The number of insufflations was 12. The average of total volume inflated was 5.7 L. The HSV was 2953 cm3 before PPP and 1935 cm3 after PPP. The average ACV increased from 8898 to 11,317 cm3 after PPP. The relationship between HSV and ACV was 38.2% before and 16.3% after PPP. There was a favorable improvement in respiratory function with an increase in vital capacity from 1875 to 2760 mL and an increase in FEV-1 from 1060 to 1670 mL after PPP. Respiratory function tests after surgery showed values of 2600 and 1560 mL, respectively, for cavity volume and FEV-1. There were no postoperative respiratory complications. CONCLUSIONS: This technique can be used safely in the surgical preparation of obese patients with hernias with loss of domain, reducing the relation between HSV and ACV and avoiding pulmonary complications.

Obstrucción intestinal debido a hernia estrangulada en el espacio prevesical: presentación de un caso y revisión de la literatura / Intestinal obstruction caused by strangulated hernia in the prevesical space: one case and revision of the literature

Resumen Introducción El espacio prevesical es una localización infrecuente de hernia. La hernia prevesical es causa infrecuente de obstrucción intestinal. Presentamos el caso de un paciente intervenido en nuestro centro y realizamos una revisión de la literatura. Caso clínico Varón de 67 años sin antecedentes médico- quirúrgicos de interés que acude a Urgencias por dolor suprapúbico de 24 h de evolución. A la exploración destacan distensión abdominal y dolor en la localización previamente descrita. Se realiza estudio analítico completo y TC abdominal, en el que se objetiva dilatación de asas del intestino delgado con cambio de calibre a nivel pélvico. Se decide realizar laparotomía exploradora: herniación de 25 cm de íleon de aspecto isquémico en el espacio prevesical. Se realiza resección intestinal y anastomosis enteroentérica L-L manual monoplano. El estudio anatomopatológico de la pieza quirúrgica no revela otros datos de interés. El paciente presenta buena evolución postoperatoria con tolerancia oral progresiva y es dado de alta al quinto día de la intervención. Conclusiones Las hernias del espacio prevesical son causa infrecuente de dolor abdominal y de obstrucción intestinal. Se localizan entre los ligamentos umbilicales laterales y el fundus de la vejiga, donde se forma un anillo peritoneal. Deben sospecharse ante dolor inguinal o supra-púbico sin tumoración palpable en el piso abdominal inferior. El diagnóstico es radiológico, mediante TC. El tratamiento es quirúrgico y ocasionalmente puede precisar resección intestinal.

Introduction Prevesical space is an infrequent location of hernias. Prevesical hernia is a rare cause of bowel obstruction. We present a case operated at our institution and review the available evidence in literature. Case report A 67-years-old mail, without any relevant medical history, came to the Emergency Department complaining of suprapubic pain during the last 24 h. Physical examination revealed abdominal distension and suprapubic pain. A CT scan revealed small bowel dilation with a gauge change in the pelvis. Exploring laparotomy was performed, observing a hernia in the prevesical space and 25 cm of ileal loops incarcerated with ischemic aspect. A small bowel resection and latero-lateral manual running suture anastomosis was performed. Histological findings were not relevant. The patient presented an uneventful postoperative course and was discharged the 5th day after surgery. Conclusions Hernias in the prevesical space are infrequent causes of abdominal pain and bowel obstruction. They are located between lateral umbilical ligaments and bladder fundus, where a ring is located. They must be suspected in cases of inguinal or suprapubic pain without palpable lump in the lower abdominal quadrants. Diagnosis can be only radiologically achieved, by CT scan. Surgical treatment is mandatory, often requiring bowel resection.

Un recorrido por la pared abdominal: evaluación de las hernias por tomografía computada multidetector / A tour of the abdominal wall: assessment of hernias by multidetector computed tomography

Si bien el diagnóstico de hernias de la pared abdominal es clínico y el estudio más indicado es la ecografía, en una gran cantidad de casos es difícil su evaluación o no se sospecha su presencia debido al biotipo del paciente, la ausencia de síntomas, la aparición de complicaciones o corresponde a algún tipo de hernia poco frecuente. Además, la debilidad de la pared abdominal generada por una cirugía predispone a la eventración de órganos, a veces poco habituales, como el hígado, la vejiga o el apéndice. La utilización de la tomografía computada multidetector (TCMD) brinda grandes ventajas cuando resulta dificultoso establecer el diagnóstico por otros métodos. También puede ser un hallazgo incidental a tener en cuenta por sus posibles complicaciones futuras. En el presente trabajo describimos los principales hallazgos por TCMD de las hernias y eventraciones de la pared abdominal (como la umbilical, epigástrica, hipogástrica, inguinal, de Spiegel, lumbar, obturatriz, intercostal e incisional) y su contenido.

Although the diagnosis of abdominal wall hernias is clinical, and the most appropriate study is ultrasound, in a lot of cases they are difficult to evaluate, or their presence is not suspected because of the biotype of the patient, the absence of symptoms, the presence of complications, or the appearance of rare hernias. Surgery weakness generated in the wall leads to organ hernia, sometimes unusual, as in the liver, bladder, or appendix. The use of multidetector computed tomography (MDCT) is a great advantage in these situations where the diagnosis can be difficult to determine with other methods. It also can be an incidental finding to consider eventual complications. In this paper, the main MDCT findings in abdominal wall hernias are described, including umbilical, epigastric, hypogastric, inguinal, Spiegel, lumbar, obturator, intercostal, and incisional, as well as their content.

Static and dynamic sonography for diagnosis of abdominal wall hernias.

Sonography is a fast, painless, inexpensive, and widely available tool usually regarded as a first-line imaging modality for abdominal wall evaluation. This article provides illustrative images and videos on the use of sonography for diagnosis of abdominal wall hernias. A variety of pitfalls that may present clinically as pseudohernias are also described.

Laparoscopic repair of a lumbar hernia: report of a case and extensive review of the literature.

Lumbar hernias are a protrusion of intra-abdominal contents through a weakness or rupture in the posterior abdominal wall. They are considered to be a rare entity with approximately 300 cases reported in the literature since it was first described by Barbette in 1672. Petit described the inferior lumbar triangle in 1783 and Grynfeltt described the superior lumbar triangle in 1866; both are anatomical boundaries where 95% of lumbar hernias occur, whereas the other 5% are considered to be diffuse. Twenty percent of lumbar hernias are congenital and the other 80% are acquired; the acquired lumbar hernias can be further classified into either primary (spontaneous) or secondary. The typical presentation of lumbar hernias is a patient with a protruding semispherical bulge in the back with a slow growth. However, they may present with an incarcerated or strangulated bowel, so it is recommended that all lumbar hernias must be repaired as soon as they are diagnosed. The "gold standard" for diagnosing a lumbar hernia is a CT scan, because it is able to delineate muscular and fascial layers, detect a defect in one or more of these layers, evaluate the presence of herniated contents, differentiate muscle atrophy from a real hernia, and serve as a useful tool in the differential diagnosis, such as tumors. Recent studies have demonstrated the advantages of a laparoscopic repair instead of the classic open approach as the ideal treatment option for lumbar hernias. We report a case of a spontaneous lumbar hernia initially diagnosed as a lipoma and corrected with the open approach, but after relapsing 2 years later it was corrected using a laparoscopic approach. It is followed by an extensive review of lumbar hernias literature regarding history, anatomy, and surgical techniques.

Grynfelt hernia: case report and literature review.

Back lumbar hernia is a rare abdominal wall defect that usually presents spontaneously after trauma or lumbar surgery or, less frequently, during infancy (congenital). Few reports have been published in the literature describing primary lumbar hernia. A general surgeon will have the opportunity to repair only one or a few lumbar hernia cases in his/her lifetime. We report a case of a healthy 50-year-old man, with no previous surgeries or history of trauma, who presented to the outpatient department with abdominal discomfort, pain, and a sensation of a growing mass on his lower left back for 4 years. CT scan of the abdomen showed a mass in the left posterolateral abdominal wall. Specifically, a herniation of retroperitoneal fat between the erector spinae muscle group and internal oblique muscles through aponeurosis of the transversalis muscle (Grynfeltt hernia). The patient underwent a small lumbotomy, polypropylene mesh was placed and he recovered well. Although many techniques have been described for the surgical management of such hernias, none of them can be recommended as the preferred method. Our impression, however, is that the open approach, with a small lumbotomy, seems to be easy, safe and presents good postoperative recovery.

A computerized tomography scan method for calculating the hernia sac and abdominal cavity volume in complex large incisional hernia with loss of domain.

Preoperative progressive pneumoperitoneum (PPP) is a safe and effective procedure in the treatment of large incisional hernia (size > 10 cm in width or length) with loss of domain (LIHLD). There is no consensus in the literature on the amount of gas that must be insufflated in a PPP program or even how long it should be maintained. We describe a technique for calculating the hernia sac volume (HSV) and abdominal cavity volume (ACV) based on abdominal computerized tomography (ACT) scanning that eliminates the need for subjective criteria for inclusion in a PPP program and shows the amount of gas that must be insufflated into the abdominal cavity in the PPP program. Our technique is indicated for all patients with large or recurrent incisional hernias evaluated by a senior surgeon with suspected LIHLD. We reviewed our experience from 2001 to 2008 of 23 consecutive hernia surgical procedures of LIHLD undergoing preoperative evaluation with CT scanning and PPP. An ACT was required in all patients with suspected LIHLD in order to determine HSV and ACV. The PPP was performed only if the volume ratio HSV/ACV (VR = HSV/ACV) was >or=25% (VR >or= 25%). We have performed this procedure on 23 patients, with a mean age of 55.6 years (range 31-83). There were 16 women and 7 men with an average age of 55.6 years (range 31-83), and a mean BMI of 38.5 kg/m(2) (range 23-55.2). Almost all patients (21 of 23 patients-91.30%) were overweight; 43.5% (10 patients) were severely obese (obese class III). The mean calculated volumes for ACV and HSV were 9,410 ml (range 6,060-19,230 ml) and 4,500 ml (range 1,850-6,600 ml), respectively. The PPP is performed by permanent catheter placed in a minor surgical procedure. The total amount of CO(2) insufflated ranged from 2,000 to 7,000 ml (mean 4,000 ml). Patients required a mean of 10 PPP sessions (range 4-18) to achieve the desired volume of gas (that is the same volume that was calculated for the hernia sac). Since PPP sessions were performed once a day, 4-18 days were needed for preoperative preparation with PPP. The mean VR was 36% (ranged from 26 to 73%). We conclude that ACT provides objective data for volume calculation of both hernia sac and abdominal cavity and also for estimation of the volume of gas that should be insufflated into the abdominal cavity in PPP.

Laparoscopic surgery for treatment of incisional lumbar hernia.

OBJECTIVE: To present results obtained with laparoscopic correction of incisional lumbar hernia in patients with minimum follow-up of 1 year. MATERIALS AND METHODS: We prospectively studied 7 patients diagnosed with incisional lumbar hernia after physical examination and computerized tomography. We used laparoscopic transperitoneal access through 3 ports. One polypropylene mesh was introduced in the abdominal cavity and fixed by titanium clamps to the margins of the hernia ring following release of the peritoneum. RESULTS: All cases were successfully completed with no conversion required. Mean surgical time was 120 minutes and discharge from hospital occurred between the 1st and the 2nd postoperative days. There were no intraoperative complications or hernia recurrence in any case. Postoperatively, we had 2 minor complications: one case of seroma that resolved spontaneously after 60 days and one patient presenting lumbar pain that persisted until the 3rd postoperative month. The return to usual activities occurred on average 3 weeks following intervention. Of the 7 patients, 6 were satisfied with the esthetical and functional effect produced by the procedure. CONCLUSIONS: The surgical correction of incisional lumbar hernia by laparoscopic access is an excellent option for a minimally invasive treatment, with adequate long-term results.