The efficacy of oral anticholinergics for sympathetic overactivity in a thoracic surgery clinic

OBJECTIVE

Little is known of the success rates of oral anticholinergics for the treatment of primary hyperhidrosis and facial blushing as alternatives to surgical intervention. We examine predictors of success with these medications.

METHODS

A retrospective review was performed at a single institution, including all patients presenting with symptoms of primary hyperhidrosis, facial blushing, or both from 2004 to 2015. All patients were offered a trial of oral anticholinergics. If oral anticholinergic therapy was not successful, patients were offered surgery. Statistical analyses were performed to compare patients who declined surgery given the trial of oral anticholinergics with those who proceeded with surgery.

RESULTS

A total of 381 patients presented with symptoms of primary hyperhidrosis (86.6%), facial blushing (2.4%), or both (11.0%). A total of 230 patients (60.4%) declined surgery after using oral anticholinergics, and 151 patients (39.6%) chose surgery. Patients who declined surgery were more likely to have symptoms of primary hyperhidrosis without facial blushing (89.6% vs 82.1%; P = .02) or have primary symptoms involving the axilla, torso, scalp, or groin. Patients who proceeded with surgery had higher rates of palmar symptoms as a primary site (77.6% vs 61.1%; P = .01) and were more likely to have facial blushing alone or in combination with primary hyperhidrosis. Presentation with palmar symptoms and greater number of prior therapy attempts were independent predictors of proceeding with surgery after controlling for concomitant symptom type and location (P = .01 and P < .0001, respectively).

CONCLUSIONS

The majority of patients presenting with sympathetic overactivity decline surgery when a trial of oral anticholinergics is included in the treatment algorithm. Facial blushing and palmar symptoms were each associated with choosing surgery.

Video-assisted thoracoscopic surgery for complex mediastinal mass resections

Minimally invasive surgery has changed the way operative procedures are performed in many specialties. As surgeons have become progressively facile with these techniques, the opportunities to use them have expanded. In thoracic surgery, many surgeons now use minimally invasive techniques to resect small, uncomplicated pathologies of the mediastinum as well as to perform thymectomy for myasthenia gravis. Experience with these techniques has allowed new knowledge to be gained and expansion of the use of these techniques for more complicated mediastinal pathology. This keynote address will outline the instrumentation and techniques that we have adopted over a decade of using these techniques for more complicated mediastinal pathology.

Perceptions of gender-based discrimination during surgical training and practice

BACKGROUND

Women represent 15% of practicing general surgeons. Gender-based discrimination has been implicated as discouraging women from surgery. We sought to determine women's perceptions of gender-based discrimination in the surgical training and working environment.

METHODS

Following IRB approval, we fielded a pilot survey measuring perceptions and impact of gender-based discrimination in medical school, residency training, and surgical practice. It was sent electronically to 1,065 individual members of the Association of Women Surgeons.

RESULTS

We received 334 responses from medical students, residents, and practicing physicians with a response rate of 31%. Eighty-seven percent experienced gender-based discrimination in medical school, 88% in residency, and 91% in practice. Perceived sources of gender-based discrimination included superiors, physician peers, clinical support staff, and patients, with 40% emanating from women and 60% from men.

CONCLUSIONS

The majority of responses indicated perceived gender-based discrimination during medical school, residency, and practice. Gender-based discrimination comes from both sexes and has a significant impact on women surgeons.

Incorporating three-dimensional printing into a simulation-based congenital heart disease and critical care training curriculum for resident physicians

OBJECTIVE

Although simulation-based education is now commonly utilized in medicine, its use in the instruction of congenital heart disease remains limited. The objective of this study is to evaluate whether heart models created with three-dimensional printing technology can be effectively incorporated into a simulation-based congenital heart disease and critical care training curriculum for pediatric resident physicians.

DESIGN

Utilizing heart models created with a three-dimensional printer, pediatric residents participated in a 60-minute simulation seminar with three consecutive components: (1) didactic instruction on ventricular septal defect anatomy; (2) didactic/simulation-based instruction on echocardiographic imaging of ventricular septal defects and anatomical teaching/operative simulation of ventricular septal defect repair; (3) simulation-based instruction on postoperative critical care management of ventricular septal defects.

SETTING

Academic, free-standing, children's hospital with quaternary care referrals.

PARTICIPANTS

Twenty-three pediatric resident physicians.

OUTCOME MEASURES

Subjective, Likert-type questionnaires assessing knowledge acquisition, knowledge reporting, and structural conceptualization of ventricular septal defects.

RESULTS

Three-dimensional printing technology was successfully utilized to create heart models of five common ventricular septal defect subtypes. After using these models in a simulation-based curriculum, pediatric residents were found to have improvement in the areas of knowledge acquisition (P = .0082), knowledge reporting (P = .01), and structural conceptualization (P < .0001) of ventricular septal defects, as well as improvement in the ability to describe and manage postoperative complications in ventricular septal defect patients in the critical care setting.

CONCLUSIONS

The utilization of three-dimensional printing in a simulation-based congenital heart disease and critical care training curriculum is feasible and improves pediatric resident physicians' understanding of a common congenital heart abnormality.

Minimally invasive thoracoabdominal esophagectomy in a morbidly obese patient

Open approaches to esophagectomy include transhiatial, Ivor-Lewis, left thoracoabdominal, and McKeown, each with inherent advantages and disadvantages. Minimally invasive esophagectomy most commonly refers to a minimally invasive Ivor-Lewis style approach, although transhiatial and McKeown approaches have also been described. A minimally invasive thoracoabdominal esophagectomy has not yet been reported. This minimally invasive approach offers the same advantages as the open thoracoabdominal procedure: excellent exposure, evaluation for resectability before gastric mobilization, and no need for intraoperative repositioning. We describe a minimally invasive thoracoabdominal esophagectomy, the technique, and advantages of this approach in a morbidly obese patient with esophageal cancer.

Utilizing Three-Dimensional Printing Technology to Assess the Feasibility of High-Fidelity Synthetic Ventricular Septal Defect Models for Simulation in Medical Education

Background:

The current educational approach for teaching congenital heart disease (CHD) anatomy to students involves instructional tools and techniques that have significant limitations. This study sought to assess the feasibility of utilizing present-day three-dimensional (3D) printing technology to create high-fidelity synthetic heart models with ventricular septal defect (VSD) lesions and applying these models to a novel, simulation-based educational curriculum for premedical and medical students.

Methods:

Archived, de-identified magnetic resonance images of five common VSD subtypes were obtained. These cardiac images were then segmented and built into 3D computer-aided design models using Mimics Innovation Suite software. An Objet500 Connex 3D printer was subsequently utilized to print a high-fidelity heart model for each VSD subtype. Next, a simulation-based educational curriculum using these heart models was developed and implemented in the instruction of 29 premedical and medical students. Assessment of this curriculum was undertaken with Likert-type questionnaires.

Results:

High-fidelity VSD models were successfully created utilizing magnetic resonance imaging data and 3D printing. Following instruction with these high-fidelity models, all students reported significant improvement in knowledge acquisition ( P < .0001), knowledge reporting ( P < .0001), and structural conceptualization ( P < .0001) of VSDs.

Conclusions:

It is feasible to use present-day 3D printing technology to create high-fidelity heart models with complex intracardiac defects. Furthermore, this tool forms the foundation for an innovative, simulation-based educational approach to teach students about CHD and creates a novel opportunity to stimulate their interest in this field.

Trends in applications for thoracic fellowship in comparison with other subspecialties

BACKGROUND

Length of training (LOT), lifestyle, and decreasing reimbursement have been credited with contributing to the decline in applications to thoracic surgery (TS). Other surgical specialties share similarities in LOT and lifestyle; however, trends in applications for these specialties have not been compared. One cannot look at applications to TS without examining concurrent changes in the pool of residents finishing general surgery. To clarify the relative impact of LOT, lifestyle, applicant pool, and reimbursement on applications to TS, we analyzed these trends concurrently.

METHODS

National Resident Matching Program residency and fellowship match placement data (1997 to 2012) for general, TS, pediatric, transplant, and vascular surgery, including integrated TS and vascular surgery, were analyzed. Corresponding trends in reimbursement were analyzed from Medical Group Management Association data (1996 to 2010).

RESULTS

During the study period, percentage of medical students matching into general surgery has remained relatively constant (4.9% to 5.5%). Applications for TS have declined since 1997. Applications for pediatric and transplant surgery have increased. Vascular surgery has remained relatively constant, with an applicant to position ratio approximately 1:1. Integrated programs (thoracic and vascular) have been popular; 3 to 7.4 applicants per position and 2 to 3.47 applicants per position, respectively. Cardiovascular surgery median salaries have remained largely the same; salaries for general thoracic, pediatric, transplant, and vascular surgery have increased (1.95% to 7.13% per year) although cardiovascular surgeons continue to have the highest median salary.

CONCLUSIONS

Given the above data, it does not appear that LOT is the critical issue associated with the decline in fellowship applications for TS. The increased demand for integrated training programs may be reflective of other factors rather than LOT. The success of abbreviated programs in training competent thoracic surgeons has not yet been determined. Given that LOT does not appear to affect applications to surgical specialty, we may be able to maintain applications to the specialty without compromising LOT.

Minimally invasive transhiatal esophagectomy after thoracotomy

Patients with end-stage achalasia may not be candidates for a transhiatal minimally invasive esophageal resection because of anatomic challenges and adhesions from previous interventions, namely, thoracotomy. Given the tactile feedback provided through a GelPort laparoscopic system (Applied Medical, Rancho Margarita, CA) we proposed that a minimally invasive transhiatal esophagectomy would be feasible in this patient cohort. The procedure was successful in 4 patients; seven complications occurred in 3 of the patients. At follow-up all patients demonstrated that they were meeting their nutritional needs with an oral diet.

Review of chest wall tumors: a diagnostic, therapeutic, and reconstructive challenge

Chest wall tumors are a heterogeneous group of lesions that provide an interesting diagnostic and therapeutic challenge for surgeons. They make up less than 5% of thoracic malignancies and vary widely in pathology as they arise from all anatomic structures of the chest wall. In general, treatment is wide local excision, the margins for malignant disease are necessarily wider, and adjuvant radiation is typically given for those with positive margins. Chemotherapy is rarely effective. Local control is the most important prognostic factor. Disease-free survival for malignant disease is limited by positive margins; therefore full oncologic resection with 4-cm margins should be attempted. For small lesions, the resection and reconstruction is usually straightforward. For more advanced disease or those lesions that require significant functional loss, preoperative planning using a multidisciplinary approach, incorporating thoracic surgery, plastic surgery, neurosurgery, radiation medicine, oncology, and physical medicine and rehabilitation, may be essential.

Modified Tikhoff-Linberg procedure for posterior chest wall sarcoma

The Tikhoff-Linberg procedure was originally described more than 80 years ago as a limb-sparing surgical option for malignancies involving the shoulder girdle. However, involvement of the chest wall was a contraindication, consigning patients to either amputation or shoulder disarticulation. With the addition of prosthetic and autologous tissue reconstruction of the chest wall, this procedure is a viable option for an extended group of patients. The modified procedure offers an excellent functional result, leaving the patient with a fully functional arm and hand.

Patient safety in the surgical setting

Patient safety has been the subject of surgical investigation for the past century. A specific focus on safety and medical errors has incited public attention, government oversight, and research funding. Traditional efforts have been focused on the individual responsible for the "mistake," while current procedure focuses on a systems approach. A critical analysis of medical errors, their frequency and cause, and outcomes associated with their occurrence has allowed the identification of system-based issues and the implementation of corrective changes to improve these systems. Constant vigilance examining errors and how they occur will allow identification of strategies to reduce errors.

Outpatient Laparoscopic Repair of a Morgagni Hernia

Introduction. Morgagni hernia results from a rare congenital defect in the anterior diaphragm and can have symptomatic and/or asymptomatic presentation of abdominal viscera in the thorax. This is a case report of a Morgagni hernia repair done laparoscopically in the outpatient setting. Patient and technique. The patient was a 43-year-old man who had an evaluation for upper respiratory symptoms and was found to have a Morgagni hernia on subsequent workup. He underwent laparoscopic primary suture repair of the defect under general anesthesia and was discharged the same day without complications. He has not had a recurrence of his hernia in over a year of follow-up. Discussion. Laparoscopic repair of this patient’s Morgagni hernia could be safely performed in an outpatient setting with excellent outcome. This may be a feasible management option in future cases in a similar patient population.

Modifications to Ivor Lewis esophagectomy

The surgical approach to esophagectomy is variable. A number of factors are considered when determining the optimal approach to esophagectomy: location and extent of disease, fibrosis, additional patient factors and surgeon preference. One of the disadvantages to some approaches is the need for a change in position, which increases operative time. Also, because typically the abdomen is initially explored, patients may later be deemed unresectable at thoracotomy. We describe time saving modifications to the standard Ivor Lewis esophagectomy that eliminate the need for repositioning and facilitate a stapled end-to-end anastomosis.