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Biomedical subjects

Charles J Filipi

Publications and source records attributed to Charles J Filipi.

18 recordsLinked to original sources
PubMed2006

Surgical repair of recurrent hiatal hernia.

The surgical management results of recurrent hiatal hernia repair are unknown in the laparoscopic era. The experience of the senior authors (CJF) and (SKM) is reported herein. From 1993 to 2004, 52 patients underwent re-operative hiatal hernia surgery at our center. Preoperative symptoms were heartburn, chest pain, dysphagia, regurgitation and pulmonary manifestations of gastroesophageal reflux disease. Patients had preoperative evaluation by upper endoscopy, pH-monitoring, esophagogram and manometry to assess the mechanism of failure. Pre- and postoperative symptoms were assessed utilizing a standardized questionnaire. Patients underwent laparoscopic repair (n=18), open laparotomy (n=6) and transthoracic surgery (n=28). Ninety-five percent follow-up was achieved with a mean follow-up of 34 months. Thirty-seven percent of patients encountered para-operative complications one of them died due to respiratory insufficiency. Five patients experienced a re-recurrent hernia. The symptom resolution was 65% for dysphagia, 68% for heartburn, 95% for chest pain and 79% for regurgitation. The overall patient satisfaction was 6.94 on a scale of 1-10. There was no significant difference in patient outcome when comparing the operative approaches or disease process. Surgical repair of recurrent hiatal hernias is safe and effective. Laparoscopic surgery is an appropriate alternative approach for recurrent hiatal hernia repair in selected patients.

Adult↗
PubMed2006

Collagen metabolism and recurrent hiatal hernia: cause and effect?

Hiatus hernia (HH) is a condition characterized by herniation of the intra-abdominal organs into the thorax. Of the several types that have been identified, the most common is type I (sliding) HH. Congenital predisposition and acquired factors, for example trauma and iatrogeny, have been identified as causative factors. There is a strong association between gastroesophageal reflux disease and HH-the prevalence of reflux in HH may reach 94%. Many methods have been used to treat reflux disease and HH, among which are laparoscopic techniques, which gained popularity as a safe method of treatment. Primary crural repair without mesh application was found to have a recurrence rate of up to 42%. This led to the introduction of mesh in HH repair, which was associated with a significant decrease in recurrence rate. Collagen and its relation to hernia have been investigated for several decades. Collagen has mechanical properties sufficient to enable it to support healed scars and other tissues. Nineteen distinct types of collagen have been recognized, the most common of which are types I and III. Type III collagen is the major constituent of early granulation tissue whereas type I predominates as healing proceeds. Collagen fibers are imbedded in extracellular matrix (ECM), which is in continuous process of synthesis and degradation under the action of matrix metalloproteinases. Many authors have studied the role of collagen in ventral hernia and have even defined hernia as a disease of the ECM. The relationship between collagen and HH, and its recurrence, is not fully understood and needs further investigation.

Collagen↗
PubMed2006

Assessment of diaphragmatic stressors as risk factors for symptomatic failure of laparoscopic nissen fundoplication.

An important limitation of antireflux surgery is a 5%-10% failure rate. We investigated the correlation between various diaphragm stressors and failure of antireflux surgery. Forty-one study cases who underwent a reoperative antireflux operation from 1997 to 2001 and 50 control patients who had undergone a successful laparoscopic Nissen fundoplication during the same period without clinical or symptomatic evidence of failure were randomly selected for comparison. A retrospective analysis was conducted utilizing a standardized diaphragm stressor questionnaire, addressing the period between the primary and secondary operation. Stressors considered in the study included height, body mass index (BMI), postoperative gagging, vomiting, weight lifting (greater than 100 pounds), coughing, hiccuping, motion sickness, retching, belching, antidepressant use, smoking, preoperative grade of esophagitis, size of hiatal hernia, lower esophageal sphincter pressure, esophageal body pressures, and preoperative response to proton pump inhibitors. Of the potential stressors investigated, the following were significantly associated with surgical failure after adjusting for other variables through multivariate analysis: gagging (P = 0.005), belching (P = 0.02), and hernia size greater than 3 cm (P = 0.04; Table 1). Other potential risk factors show trends as obvious in Fig. 2. Vomiting was significant (P = 0.01) in the earlier models but lost significance when logistic regression was applied. Patients with postoperative gagging and an intraoperative hiatal hernia (greater than 3 cm) have a poorer outcome, whereas patients with postoperative belching have a better long-term outcome.

Adolescent↗
PubMed2006

Repair of 104 failed anti-reflux operations.

OBJECTIVE: To assess whether reoperative surgery for failed Nissen fundoplication is beneficial and to classify all mechanisms of failure recognized. SUMMARY BACKGROUND DATA: Antireflux surgery is often necessary, but a 10% failure rate is commonplace. We report results for patients undergoing reoperative surgery and present a nomenclature of mechanisms of failure. METHODS: A total of 104 patients, who had a previous fundoplication for gastroesophageal reflux disease (GERD), underwent reoperative surgery. Manometry (n = 86), endoscopy (n = 101), pH monitoring (n = 27), upright esophagram (n = 90), gastric emptying (n = 26), and symptom assessment (n = 104) were performed prior to reoperative surgery. Patients were also assessed before and during reoperation for mechanism of failure using a newly proposed classification. The operative approach was laparoscopic in 58 patients, via open laparotomy in 12, and a thoracotomy in 34 patients. Follow-up was conducted by phone interview and was completed in 97 patients (97%; 3 were deceased) with a mean follow-up of 32 months (range, 1-146 months). RESULTS: The conversion rate to laparotomy for laparoscopic patients was 8%. The perioperative complication rate was 32%. One patient died of respiratory insufficiency after a laparotomy. Seven patients required additional surgery for correction of persistent or recurrent symptoms. The short and long-term complication rate was similar for the different operative approachs. Symptom resolution (rare or absent) occurred in 74% of patients with dysphagia, 75% with heartburn, 85% with regurgitation, and 94% with chest pain. The overall post-reoperative patient satisfaction was 7 on a scale of 1 to 10 and 3 on a scale of 1 to 4 when patients were asked to grade the operative result. There was no difference in the symptom resolution for patients operated upon by the laparoscopic approach as compared with laparotomy, but those patients undergoing a Collis gastroplasty had poorer results. The preoperative accuracy of assessment for mechanism of failure was 78%. A nomenclature of mechanisms of failure is included to aide reoperative assessment and new mechanisms of failure are described. CONCLUSION: Reoperative surgery results for GERD are satisfactory. A variety of operative approaches proved equally effective. Poorer results were observed in patients with more advanced disease.

Adult↗
PubMed2005

Endoluminal gastroplasty: a new treatment for gastroesophageal reflux disease.

Initial studies demonstrate that EndoCinch is safe and may be an effective outpatient procedure. Symptom improvement, reduction in medication requirements, and ultrasound evidence of muscle hypertrophy are encouraging. The durability of these benefits remains in question. Seventeen percent of patients require a repeat gastroplication to achieve a satisfactory result and some elect to undergo laparoscopic Nissen fundoplication. Additional investigations are required to assess the number and location of the plications for optimal patient outcome. Prospective randomized studies comparing ELGP to medical and surgical treatments of GERD may be appropriate after device refinements. Of additional importance is the possibility of a cure with an ELGP. Patients who are self-medicated or noncompliant often are willing to seek consultation if a noninvasive curative procedure is available. One third of these patients have advanced disease and are treated best with surgery rather than an ELGP; thus, surgeons should be involved with ELGP for GERD control.

Animals↗
PubMed2004

Technical factors in the creation of a "floppy" Nissen fundoplication.

The original description of "floppy" Nissen fundoplication was that of an open procedure involving a large esophageal bougie, complete fundic mobilization, ligation of the short gastric vessels, and placement of a finger or a dilator under the completed fundoplication to assure laxity. A maneuver equivalent to the latter step during laparoscopic Nissen fundoplication has not been described. The consensus in the literature appears to be that the element of a fundoplication that defines it as floppy is complete mobilization of the fundus. We report an intraoperative maneuver that assures the fundoplication has adequate laxity. We also discuss several other maneuvers to assure proper formation of the fundoplication and to minimize side effects such as long-term dysphagia.

Fundoplication↗
PubMed2004

A current assessment of endoluminal approaches to the treatment of gastroesophageal reflux disease.

Over the past decade, a number of endoscopic techniques have been developed as alternatives to medical and surgical treatment of gastroesophageal reflux disease (GERD). The driving force was to provide an outpatient transoral, endoscopic procedure effective in controlling reflux in a portion of patients with GERD. Three major technologies emerged, although each use different approaches to augment the barrier function of the lower esophageal sphincter, mechanisms may be similar. These include Endocinch which tightens the gastroesophageal junction via a set of suture plications around the lower esophageal sphincter, Stretta, which delivers radiofrequency energy at the cardia, and Enteryx, which is an inert polymer injected into the muscle layer of the gastroesophageal junction. To date, the underlying mechanism of action of these procedures has not been completely elucidated, although each alters the compliance of the GEJ and thus its ability to respond to a "refluxogenic stress". The target population currently consists of proton pump inhibitor-dependent GERD patients, with little or no hiatal hernia and without severe esophagitis or Barrett's. The Stretta procedure is the only procedure to date to be subjected to a sham-controlled trial. Registries of complications suggest that these techniques are relatively safe, but serious morbidity including rare mortality have been reported. All can be performed on an outpatient basis. Future comparative studies with predetermined end points, validated outcome measures, prolonged follow-up, and complete complication registries are needed to determine the role of endoscopic procedures in the clinical practice of patients with GERD. Evolution of the current technologies will almost certainly occur, and a commonly performed, efficacious endoscopic antireflux procedure is likely to emerge.

Ambulatory Care↗
PubMed2003

Endoscopic suturing for gastroesophageal reflux disease: clinical outcome with the Bard EndoCinch.

From a review of the single peer reviewed published report and the brief preliminary studies presented in abstract form, the BARD EndoCinch procedure seems safe and demonstrates an acceptable efficacy for symptom control during short-term follow-up. Most patients (about 2 out of 3) do well with improvement of GERD symptoms during the first post-procedural year. This benefit may wane over time. Objective benefit is lacking with the minority of treated individuals achieving normalization of 24-hour total acid exposure, and no significant effect has been seen in healing of esophagitis. This may focus the treatment towards that group of GERD patients with mild or non-erosive disease. The authors have no information that the endoscopic therapy could prevent reflux-related complications, and long-term data is awaited from accumulated clinical experience to establish the maintenance profile of this novel treatment. The outcomes from the sham trial, and long-term follow-up data will help to define the role of this anti-reflux therapy. The authors need additional studies to define the effect of endoluminal plication on the function of the lower esophageal sphincter to optimize its benefit for patients.

Clinical Trials as Topic↗
PubMed2003

Is analysis of lower esophageal sphincter vector volumes of value in diagnosing gastroesophageal reflux disease?

AIM: With successful surgical treatment of gastroesophageal reflux disease (GERD), there is interest in understanding the anti-reflux barrier and its mechanisms of failure. To date, the potential use of vector volumes to predict the DeMeester score has not been adequately explored. METHODS: 627 patients in the referral database received esophageal manometry and ambulatory 24-hour pH monitoring. Study data included LES resting pressure (LESP), overall LES length (OL) and abdominal length (AL), total vector volume (TVV) and intrabdominal vector volume (IVV). RESULTS: In cases where LESP, TVV or IVV were all below normal, there was an 81.4 % probability of a positive DeMeester score. In cases where all three were normal, there was an 86.9 % probability that the DeMeester score would be negative. Receiver-operating characteristics (ROC) for LESP, TVV and IVV were nearly identical and indicated no useful cut-off values. Logistic regression demonstrated that LESP and IVV had the strongest association with a positive DeMeester score; however, the regression formula was only 76.1 % accurate. CONCLUSION: While the indices based on TVV, IVV and LESP are more sensitive and specific, respectively, than any single measurement, the measurement of vector volumes does not add significantly to the diagnosis of GERD.

Adolescent↗
PubMed2003

Postmyotomy dysphagia after laparoscopic surgery for achalasia.

AIM: To determine predictive factors for postoperative dysphagia after laparoscopic myotomy for achalasia. METHODS: Logistic regression was used to investigate the possible association between the response (postoperative dysphagia, with two levels: none/mild and moderate/severe) and several plausible predictive factors. RESULTS: Eight patients experienced severe or moderate postoperative dysphagia. The logistic regression revealed that only the severity of preoperative dysphagia (with four levels: mild, moderate, severe, and liquid) was a marginally significant (P=0.0575) predictive factor for postoperative dysphagia. CONCLUSION: The severity of postoperative dysphagia is strongly associated with preoperative dysphagia. Preoperative symptomatology can significantly impact patient outcome.

Deglutition Disorders↗
PubMed2002

Pseudoachalasia as a late complication of gastric wrap performed for morbid obesity: report of a case.

A 66-year-old woman presented with progressive dysphagia of 10 years' duration. She had undergone a Teflon gastric wrap operation for obesity 20 years earlier. Endoscopic and radiological examinations showed a dilated tortuous esophagus and a contracted stomach. The esophageal manometry findings were consistent with achalasia. She underwent an uneventful total gastrectomy, partial distal esophagectomy, and Roux-en-Y esophagojejunal anastomosis. When last seen, 2 months after her operation, she was not suffering from dysphagia. This case report serves to demonstrate that gastric reservoir wrapping is associated with significant morbidity.

Aged↗
PubMed2002

Symptom predictability of reflux-induced respiratory disease.

Gastroesophageal reflux disease (GERD) often is associated with pulmonary problems such as asthma as well as recurrent and nocturnal cough. Dual-probe 24-hr pH monitoring may assist in establishing a correlation between these symptoms and GERD-related symptoms. To determine if any specific symptom was predictive of aspiration, this study was undertaken. Ambulatory dual-probe esophageal pH monitoring was performed on 133 patients who had upper airway and additional symptoms for GERD. All patients had esophageal manometric studies of the lower esophageal sphincter (LES), the upper esophageal sphincter (UES), and the esophageal body before dual-probe pH monitoring was performed. Using two assembled glass probes, the distal and the proximal sensors were placed 5 cm above the proximal border of the LES and 1 cm below the lower border of the UES, respectively. Patients were classified into three groups: proximal and distal probe positive (group I), proximal probe negative and distal probe positive (group II) and proximal and distal probe negative (Group III) Upper airway and additional symptoms plus manometry results of the LES, body and UES study were compared between groups. In addition, positive distal probe patients (groups I and II) were compared for distal fraction of time at pH < 4 and number of reflux episodes at each probe position. A positive distal probe result was defined as an abnormal DeMeester score (> 14.8). A proximal probe test result was considered positive if percent time pH < 4.0 was > 1.1 for total, 1.7 for upright, and 0.6 for supine positions. The ages of the subjects ranged from 18 to 83 years (mean age: 50.5 +/- 1.5 years). Groups I, II, and III included 16 patients, 38 patients, and 79 patients, respectively. Group I had a significantly higher incidence of nocturnal cough than the other two groups. (P < 0.05). The manometric data revealed between groups that LES pressure (LESP) for groups I and II was significantly lower than LESP for group III (P = 0.003). Cricoid pressure, pharyngeal pressure, length, and relaxation of UES were not different between groups. Fraction of reflux time for group I was significantly higher than for group II in the supine position and at mealtime (P < 0.05). The number of reflux episodes for group I was significantly higher at meal time (P < 0.01). In conclusion, nocturnal cough is strongly predictive of proximal esophageal reflux. Proximal reflux episodes are significantly more frequent in the supine position and correlate well with the high predictive value of nocturnal cough.

Adolescent↗
PubMed2000

Endo-Drgan Surgery: a New Approach to Intragastric Lesions.

Gastric endo-organ surgery is a minimally invasive procedure combining the use of gastroesophageal endoscopy and laparoscopy to approach intragastric problems that require surgical intervention. The advantages include: less scarring; shorter hospital stays; and less postoperative discomfort than conventional laparotomy. The technique requires placement of two or three percutaneous endoscopic gastrostomies in various positions on the gastric wall. Filipi et al. developed a percutaneous endoscopic gastrostomy (PEG) that is large enough to allow the use of 5 and 10mm laparoscopic instruments for intragastric surgery. In this article we review the complications related to the introduction of this access port.

Journal Article↗
PubMedDate not supplied

A long-term comparison of plication configurations for endoluminal gastroplication: circumferential versus helical.

GOALS: To determine the long-term efficacy of endoluminal gastroplication (ELGP) and the most effective plication configuration. BACKGROUND: Endoluminal gastroplication is an intriguing therapy for gastroesophageal reflux disease. We conducted a retrospective review of a prospective experience of patient cohorts comparing outcomes of the circumferential and helical plication patterns. STUDY: Twenty patients underwent ELGP, with 9 receiving the circumferential (Group 1) and 11 the helical pattern (Group 2). Manometry, endoscopy, and 24-hour pH monitoring were performed at baseline and at 6 months. Symptom scores and medication usage were assessed at baseline, 1, 3, 6, 12, and 18 months. RESULTS: Both groups did not differ significantly from each other with respect to symptom improvement, medication usage, or other variables measured. At 6 months, symptom scores, histamine-2 receptor antagonist (H2RA), proton pump inhibitor usage, and hernia size decreased significantly. No other parameter showed a significant change. At the 18-month follow-up, symptom scores and H2RA usage decreased significantly. CONCLUSION: ELGP improves heartburn and regurgitation scores at 18 months. Our study suggests that there is no benefit to additional plications when using the helical pattern.

Adult↗
PubMedDate not supplied

Causes of long-term dysphagia after laparoscopic Nissen fundoplication.

BACKGROUND: Laparoscopic fundoplication has revolutionized the surgical treatment of gastroesophageal reflux disease. Despite improvements in the technique of fundoplication, persistent dysphagia remains a significant cause of postoperative morbidity. METHOD: Causes of persistent postoperative dysphagia were analyzed in a consecutive series of 167 patients after laparoscopic Nissen fundoplication. Short gastric vessel division and its effect on postoperative dysphagia were analyzed. RESULTS: Follow-up was possible in 139 patients (83%). The mean follow-up period was 27 +/- 21 months. Nine patients (6%) had persistent (moderate to severe) dysphagia, and 33 patients (24%) had mild dysphagia. The satisfaction score among patients with persistent dysphagia was significantly lower than that in patients with mild dysphagia (P < 0.0002). On the other hand, the satisfaction rate among patients with mild dysphagia and those who are asymptomatic was similar. Manometry, performed in 7 of 9 persistent dysphagia patients revealed no difference in postoperative lower esophagus sphincter (LES) pressure and relaxation as compared with that in the control group (n = 52). Six of 9 patients with persistent dysphagia underwent a re-do antireflux procedure. Dysphagia as related to fundic mobilization (complete vs. partial) or bougie size (< 58 Fr. vs. > or = 58 Fr.) revealed no difference in the dysphagia ratings. CONCLUSIONS: Laparoscopic short Nissen fundoplication with or without fundic mobilization achieved an acceptable long-term dysphagia rate. Careful patient selection, identification of the short esophagus, and accurate construction of the fundoplication can lead to a decrease in the incidence of persistent postoperative dysphagia.

Adult↗
PubMedDate not supplied

Hiatal stenosis after laparoscopic Nissen fundoplication: a report of 2 cases.

Persistent postoperative dysphagia (PPD) is one of the most troublesome complications of laparoscopic antireflux surgery. Hiatal stenosis, although rare, is a serious complication and is one of the causes of PPD after antireflux procedures. In the 2 presented patients, progressive dysphagia started immediately after the antireflux procedure and did not respond to esophageal dilations. The cause of dysphagia in both patients was hiatal stenosis and was corrected laparoscopically.

Adult↗