Patient-induced complications of a Heimlich flutter valve

Persistent air leaks: a review with an emphasis on bronchoscopic management

Persistent air leak (PAL) is a cause of significant morbidity in patients who have undergone lung surgery and those with significant parenchymal lung disease suffering from a pneumothorax. Its management can be complex and challenging. Although conservative treatment with chest drain and observation is usually effective, other invasive techniques are needed when conservative treatment fails. Surgical management and medical pleurodesis have long been the usual treatments for PAL. More recently numerous bronchoscopic procedures have been introduced to treat PAL in those patients who are poor candidates for surgery or who decline surgery. These techniques include bronchoscopic use of sealants, sclerosants, and various types of implanted devices. Recently, removable one-way valves have been developed that are able to be placed bronchoscopically in the affected airways, ameliorating air-leaks in patients who are not candidates for surgery. Future comparative trials are needed to refine our understanding of the indications, effectiveness, and complications of bronchoscopic techniques for treating PAL. The following article will review the basic principles of management of PAL particularly focusing on bronchoscopic techniques.

Effectiveness of Ambulatory Tru-Close Thoracic Vent for the Outpatient Management of Pneumothorax: A Prospective Pilot Study

Objective

This study aimed to assess the technical feasibility, procedural safety, and long-term therapeutic efficacy of a small-sized ambulatory thoracic vent (TV) device for the treatment of pneumothorax.

Materials and Methods

From November 2012 to July 2013, 18 consecutive patients (3 females, 15 males) aged 16–64 years (mean: 34.7 ± 14.9 years, median: 29 years) were enrolled prospectively. Of these, 15 patients had spontaneous pneumothorax and 3 had iatrogenic pneumothorax. A Tru-Close TV with a small-bore (11- or 13-Fr) catheter was inserted under bi-plane fluoroscopic assistance.

Results

Technical success was achieved in all patients. Complete lung re-expansion was achieved at 24 hours in 88.9% of patients (16/18 patients). All patients tolerated the procedure and no major complications occurred. The patients' mean numeric pain intensity score was 2.4 (range: 0–5) in daily life activity during the TV treatment. All patients with spontaneous pneumothorax underwent outpatient follow-up. The mean time to TV removal was 4.7 (3–13) days. Early surgical conversion rate of 16.7% (3/18 patients) occurred in 2 patients with incomplete lung expansion and 1 patient with immediate pneumothorax recurrence post-TV removal; and late surgical conversion occurred in 2 of 18 patients (11.1%). The recurrence-free long-term success rate was 72.2% (13/18 patients) during a 3-year follow-up period from November 2012 to June 2016.

Conclusion

TV application was a simple, safe, and technically feasible procedure in an outpatient clinic, with an acceptable long-term recurrence-free rate. Thus, TV could be useful for the immediate treatment of pneumothorax.

Heimlich valve and pneumothorax

The Heimlich valve is a small one-way valve used for chest drainage that empties into a flexible collection device and prevents return of gases or fluids into the pleural space. The Heimlich valve is less than 13 cm (5 inches) long and facilitates patient ambulation. Currently there are several systems in the market. It can be used in many patients instead of a traditional water seal drainage system. The Heimlich chest drainage valve was developed so that the process of draining the pleural cavity could be accomplished in a safe, relatively simple, and efficient manner. This valve system has replaced the cumbersome underwater drainage bottle system. Moreover; the Heimlich valve system connects to chest tubing and allows fluid and air to pass in one direction only. This system functions in any position, and it does not ever need to be clamped, a regulated suction can be attached to it if necessary. The valve drains into a plastic bag that can be held at any level, allowing the patient undergoing chest drainage to be ambulatory simply by carrying the bag. In the current mini review we will present the Heimlich valve system and method of insertion.

Portable chest drainage systems and outpatient chest tube management

Ambulatory treatment of pleural problems such as pneumothorax and malignant pleural effusions has been extensively described and is commonly used. On the contrary, outpatient management of chest tubes after lung resection is less frequently performed. Because prolonged air leak after lobectomy is a common problem, early discharge of these patients under pleural drainage can avoid many hospital days without compromising the quality of care. In this article, general rules for outpatient chest tube management are described and available portable devices are reviewed.

Outcomes of Heimlich valve drainage in dogs

OBJECTIVE AND DESIGN

Retrospective study of the outcomes of Heimlich valve drainage in dogs.

PROCEDURE

Medical records of the past 3 years were retrospectively reviewed. Heimlich valve drainage was used in 34 dogs (median body weight 30 +/- 5 kg): lobectomy (n = 15), pneumonectomy (n = 9), intrathoracic oesophageal surgery (n = 2), diaphragmatic hernia repair (n = 1), traumatic open pneumothorax (n = 2), bilobectomy (n = 2), ligation of the thoracic duct (n = 1), and chylothorax and pneumothorax (n = 1 each). Evacuation of air and/or fluid from the pleural cavity was performed with the Heimlich valve following thoracostomy tube insertion. During drainage, the dogs were closely monitored for possible respiratory failure. Termination of Heimlich valve drainage was controlled with underwater seal drainage and assessed with thoracic radiography.

RESULTS

Negative intrathoracic pressure was provided in 29 dogs without any complications. Post pneumonectomy respiratory syncope and post lobectomy massive hemothorax, which did not originate from the Heimlich valve, were the only postoperative complications. Dysfunction of the valve diaphragm, open pneumothorax and intrathoracic localisation of an acute gastric dilatation-volvulus syndrome caused by a left-sided diaphragmatic hernia following pneumonectomy were the Heimlich valve drainage complications.

CONCLUSIONS

The Heimlich valve can be used as a continuous drainage device in dogs, but the complications reported here should be considered by veterinary practitioners.

What size chest tube? What drainage system is ideal? And other chest tube management questions

Chest tubes and their accompanying pleural drainage units continue to present challenging questions regarding their optimal use. Appropriate chest tube size selection to accommodate the clinical situation is key, especially in the setting of large pleural air leaks lest a tension pneumothorax ensue. Connection of an appropriate pleural drainage unit to the chest tube is equally important to obviate impeding airflow after successful evacuation by the chest tube. Large-bore chest tubes are generally required for patients with pneumothoraces, regardless of etiology, if the patient is mechanically ventilated, or for patients requiring drainage of viscous pleural liquids such as blood. Smaller bore tubes may be adequate in patients with limited production of pleural air or of free-flowing pleural liquid. Chest tubes may be removed successfully at either end expiration or end inspiration, and potentially as soon as </=200 mL/fluid output per day is achieved. Additional prospective studies are needed to provide evidence-based answers to the many questions remaining regarding chest tube placement, ongoing management, and removal.

Management of pneumothorax with a mini-drain in ambulatory and hospitalized patients

OBJECTIVE

To test the clinical performance of a miniaturized drainage system and compare the effect on pain and mobility between the new system and a standard system. One aim was to try ambulatory treatment in patients with uncomplicated pneumothorax (35/55), another to see if patients with more severe diseases and pneumothorax could be mobilized better while in hospital.

DESIGN

Follow-up of 55 patients treated with the new system. Detailed analysis of a subgroup of 20 of those patients compared with 17 patients treated with a standard system.

RESULTS

No major complications occurred. Minor complications were haematomas and bleeding in three patients. In 12% the unit had to be replaced due to blockage by clots, obstruction of the tube, or sub-optimal performance. There were nine recurrences (16%), so patients had to have a standard drain or be referred for operation. In the subgroup of 35 patients with uncomplicated primary pneumothorax, 31 (88.5%) could be managed on an outpatient basis resulting in considerable cost reductions. Many of those patients could lead a normal life, including work during the treatment time. The new drain system was significantly less painful during activities related to sleep, hygiene, toilet visits and extraction.

CONCLUSION

The function of the mini-drain was satisfactory in the majority of cases, but cases with pleural fluid should be avoided. The recurrences were more due to the severe nature of the pulmonary leak rather than to inadequacy of the drain. The side effects mostly occurred in the first patients, so there was a learning curve. The new system should be tried in all patients presenting with an uncomplicated pneumo-thorax allowing ambulatory treatment. Patients with other diseases complicated by pneumothorax could have the new system in order not to be confined to bed. The new system has no place in patients bedridden due to other severe diseases.

Mobile chest drainage: coming soon to a home near you

Home care nurses are seeing more patients with chest drainage devices than ever before. This article reviews the conditions that may be treated at home with mobile chest drainage devices, specific devices nurses are likely to see in the home, focused nursing assessments, tips for monitoring the devices, and key aspects of patient and caregiver teaching.

Treatment of spontaneous pneumothorax

Spontaneous pneumothorax (SP) continues to be a frequent management problem. The lack of universally accepted management guidelines and a myriad of treatment options contribute to the current heterogeneous approach to SP. Forthcoming guidelines may improve management. Meantime, simple observation in stable patients with a primary spontaneous pneumothorax (PSP) is reasonable, and encouraging smoking cessation is paramount. More aggressive management of a patient with a secondary spontaneous pneumothorax (SSP) is advisable and should include at least chest tube drainage with chest tube size selection key. Careful assessment of recurrence risk and early corrective intervention for patients with a persistent air leak will improve care of both PSP and SSP patients. If chest tube-directed pleurodesis is chosen for recurrence prevention, talc is the most successful agent available. However, no more than 5 g of talc should be utilized, given the potential increased risk for acute respiratory failure at higher doses, and patients should be advised of alternatives such as doxycycline. No overwhelming clinical outcome advantages for a thoracoscopic over a limited thoracotomy approach to SP management has been reported in any randomized controlled trial. Institutional experience with and the availability of thoracoscopy or limited thoracotomy should dictate the operative approach to SP recurrence prevention and air leak correction until further study clarifies the choice.

A new portable chest drainage device

BACKGROUND

Persistent air leak is a frequent complication in lung operation. The Heimlich valve is the standard system for venting the pleural cavity. The device achieves good results and is well tolerated, but the main problem is when air leak is associated with fluid leakage.

METHODS

In order to improve the outpatient management of persistent air and fluid drainage after resectional procedures, we developed an original device. It is a portable system provided with a one-way valve connected to the chest tube for drainage of air and fluid, a reservoir for collecting fluid, and a one-way exhaust valve to evacuate air from the bag.

RESULTS

We analyze the advantages of our device versus the Heimlich valve in the first series of 18 selected patients. Our system is drier and cleaner, easier to manage, and ambulatory visits are seldom needed. There is also a cost savings.

CONCLUSIONS

Our device enhances ambulation, independence, and the quality of life of the patients, and decreases the need for hospital and outpatient care.