TBNA


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TBNA

Abbreviation for transbronchial needle aspiration.

aspiration

(as?pi-ra'shon) [ aspirate]
1. Drawing in or out by suction. Foreign bodies may be aspirated into the nose, throat, or lungs on inspiration.
2. Withdrawal of fluid from a cavity by suctioning with an aspirator. The purpose of aspiration is to remove fluid or air from an affected area (as in pleural effusion, pneumothorax, ascites, or an abscess) or to obtain specimens (such as blood from a vein or serum from the spinal canal).

Equipment

Aspiration equipment includes disinfecting solution for the skin; local anesthetic; two aspirating needles; a vacuum bottle or other closed system for receiving the fluid; a sterile receptacle for the specimen; sterile sponges, towels, and basins; sterile gloves, face masks, and gowns; and surgical dressings as the case may require.

Patient care

The nurse assists with the aspiration procedures by assembling necessary equipment, by explaining the procedure and expected sensations to the patient, and by ascertaining that a consent form has been signed. The patient is draped to ensure privacy and warmth as well as emotional comfort. Emotional support is provided throughout the procedure. The operator is assisted in obtaining and processing specimens. The type and amount of any drainage or aspirated material is observed and documented. The operative site is dressed, and patient outcomes and any complications are monitored.

The respiratory therapist is primarily responsible for aspirating excessive airway secretions. This procedure may be done as a therapeutic maneuver to ease breathing or as a diagnostic procedure to collect a sputum sample for analysis of the microbes associated with the infection.

fetal meconium aspiration

Meconium aspiration syndrome.

microsurgical epididymal sperm aspiration

, micro-epididymal sperm aspiration Abbreviation: MESA
See: testicular sperm aspiration

percutaneous epididymal sperm aspiration

Abbreviation: PESA
See: testicular sperm aspiration

suction aspiration

Vacuum aspiration.

suprapubic aspiration of urine

A procedure for draining the bladder when it is not possible to use a urethral catheter. The skin over the lower abdominal area is cleansed. An incision in the abdominal wall is made with a needle or trocar to gain access to the bladder. To prevent complications during the procedure, it is important to observe the following guidelines: The patient should be positioned in the marked Trendelenburg position. The bladder should be distended with 400 ml of fluid. Any previous abdominal wall incisions that may have left the bladder or bowel adherent to the scar tissue should be noted. The incision should be no more than 3 cm above the pubic symphysis. The trocar should be inserted 30° toward the bladder, i.e., away from the pubic symphysis (if in doubt, a small-gauge needle should be inserted for orientation); the trocar should not be placed in a vertical direction. The depth of trocar insertion should be monitored, using gentle pressure on the trocar to prevent damage to the bladder base.

CAUTION!

The needle may pierce a loop of bowel that is lying over the anterior surface of the bladder.

testicular sperm aspiration

Abbreviation: TESA
The procurement of sperm directly from the testes, e.g., by surgery or needle aspiration. Similar techniques include microsurgical aspiration of sperm by micro-epididymal sperm aspiration (MESA) or percutaneous epididymal sperm aspiration (PESA).

transbronchial needle aspiration

Abbreviation: TBNA
A method of sampling abnormal tissue masses found in the mediastinum. A needle is guided into the mass during bronchoscopy, and cells are dislodged with a sawing motion. Suction is applied to gather specimens. TBNA is typically used to determine whether the mass represents a malignancy, such as a bronchogenic carcinoma or lymphoma.

vacuum aspiration

Evacuation of the contents of the uterus by a curet or catheter attached to a suction apparatus. The procedure is performed before the 12th week of gestation. It is the most common form of surgical abortion. Synonym: suction aspiration

transbronchial needle aspiration

Abbreviation: TBNA
A method of sampling abnormal tissue masses found in the mediastinum. A needle is guided into the mass during bronchoscopy, and cells are dislodged with a sawing motion. Suction is applied to gather specimens. TBNA is typically used to determine whether the mass represents a malignancy, such as a bronchogenic carcinoma or lymphoma.
See also: aspiration
References in periodicals archive ?
Several reports have confirmed the diagnostic value of EBUS TBNA for the biopsy of meditational lymph nodes in patients with suspected sarcoidosis9-10 as an example one study of 258 patients with suspected cases found that the diagnostic yield increased from 66 to 78 when TBNA was Added to transbronchial biopsy11.
"TBNA is a useful diagnostic tool that may obviate surgical biopsy" when a positive result is obtained, Dr.
Abbreviations: DM, dry matter; FDM, forage DM yield; FNA, forage N accumulation; FNC, forage N concentration; IVCWD, in vitro cell wall digestibility; IVTD, in vitro true digestibility; LSD, least significant difference; LWR, leaf weight ratio; NDF, neutral detergent fiber; NUE, N use efficiency; RWR, root weight ratio; PCA, principal component analysis; PC, principal component; TBDM, total biomass DM yield; TBNA, total biomass N accumulation; TBNC, total biomass N concentration.
Once the TBNA needle is within the target, the stylet of the needle is agitated to dislodge any airway debris before being removed for biopsies to be aspirated.
Transbronchial needle aspiration: In the two cases of transbronchial needle aspiration (TBNA) a combination of topical anesthesia and general anesthesia was used, due to need to use the rigid bronchoscope (table 3).
However, diagnosis of lymphoma could not be made by cytologic examination of TBNA. The rate of diagnostic success by TBNA was similar in tuberculosis and sarcoidosis (60% vs 82.4%), which appeared lower than for intrathoracic lymphadenopathy due to carcinoma (100%).
However, in other studies, the diagnostic accuracy of EBUS-TBNA for benign granulomatous disorders was not significantly different from that observed for malignant diseases.[sup][8],[9] We suggest that CP-EBUS allows for performing real-time TBNA of the lesion, which might greatly improve the accuracy of the aspiration.
Other less invasive techniques like TBNA and EUS guided aspiration are available at highly specialized centres with high sensitivity in clinically obviously involved mediastinal lymph nodes however negative predictive value of these techniques is significantly lower than mediastinoscopy17.
The diagnostic yields of transbronchial needle aspiration (TBNA) and TBNA + transbronchial lung biopsy (TBLB) are 62% and 83%, respectively.[sup][3] Endobronchial ultrasound-guided TBNA (EBUS-TBNA) is a new technique used for the diagnosis of patients with sarcoidosis.[sup][4] The authors have reported that the diagnostic yield of this technique is 79% (95% confidence interval [ CI ], 71–86%).[sup][5] The first case involving the use of EBUS-TBNA to sample mediastinal nodes was reported in 2003.[sup][6] In this study, we performed a meta-analysis to compare the diagnostic yields of EBUS-TBNA and standard bronchoscopy to help guide the diagnosis of sarcoidosis.
The central government identifies the Tianjin Binhai New Area (TBNA), established in January 2010 and administered by Tianjin municipality, as the third economic growth focal point of the country, after Shenzhen in the 1980s and the Shanghai Pudong area in the 1990s.