Effects of Different Recovery Positions on the Postpercutaneous Liver Biopsy Complications: A Metaanalysis

Objective: We aim to evaluate the effects of different recovery positions on the adverse events and the patient acceptability in those who underwent percutaneous liver biopsy (PLB).Methods: A literature search was conducted in the Cochrane Library, Embase, Scopus, PubMed, CNKI, Sinomed, and Wanfang databases. The time for the article extraction was until July 2020. The articles were screened by two independent researchers, together with the bias risk evaluation and data extraction. The RevMan 5.4 software was utilized for the metaanalysis.Results: Finally, two articles involving 180 subjects were eligible for this study. Metaanalysis showed that at T0, the alternation between right-side and combined position (CRP) would induce an elevation of post-PLB pain compared with the dorsal/supine position (SRP) [WMD = −2.00, 95% CI (−3.54, −0.47), p = 0.01]. There were no statistical differences in the postoperative pain among the CRP, SRP, and right-side position (RRP). The patient acceptability of SRP and RRP was higher than that of the CRP. Finally, two eligible studies were included, which showed no incidence of pneumothorax and abdominal bleeding.Conclusions: CRP would induce post-PLB pain at T0. SRP was the most acceptable position for the cases that underwent PLB. There were no statistical differences in the incidence of pneumothorax and abdominal bleeding.Systematic Review Registration:https://www.crd.york.ac.uk/PROSPERO, identifier: CRD42020196633.

Complications of invasive methods diagnosis of pulmonary dissemination syndrome, their prevention and treatment

Objective — to study the possible complications that arise when using invasive methods for the diagnosis of pulmonary dissemination syndrome, to develop measures aimed at their prevention and treatment. Materials and methods. Data from 216 patients who used invasive methods to diagnose pulmonary dissemination syndrome were analyzed. Patients were divided into 3 groups, depending on the type of biopsy: Group I — 143 patients who underwent VATS lung biopsy, Group II — 64 patients who underwent endobronchial ultrasound transbronchial biopsy lungs (EBUS TBBL); Group III — 9 patients who underwent open biopsy. Complications in I — 12 (8.4 %), II — 5 (7.8 %), III — 2 (22.2 %), total — 19 (8.8 %). These were lung tear, wound suppuration, disease progression, pneumothorax, hemoptysis, respiratory failure, intrapleural hemorrhage. Results and discussion. Based on the obtained data, we have proposed methods of prevention of complications: radiography of the thoracic cavity in the first day after biopsy; correction of antiplatelet therapy; careful selection of patients for biopsy taking into account age, concomitant pathology, taking drugs, history.Conclusions. Lung biopsy for pulmonary dissemination syndrome is a safe type of diagnosis with a low level of complications — 8.8 %.The least traumatic method is transbronchial lung biopsy under ultrasound control.If it is impossible to perform a transbronchial lung biopsy, or if the obtained material is uninformative, the next step is to use a video­assisted lung biopsy.An open biopsy should be considered last and only under strict indications.It is important to choose the right method of biopsy, taking into account age, history, drugs.

Kidney biopsy practice amongst Australasian nephrologists

Background Percutaneous kidney biopsy is the gold standard investigation for the diagnosis of kidney diseases. The associated risks of the procedure depend on the skill and experience of the proceduralist as well as the characteristics of the patient. The Kidney Health Australia – Caring for Australasians with Renal Impairment (KHA-CARI) guidelines on kidney biopsies, published in 2019, are the only published national kidney biopsy guidelines. As such, this study surveys current kidney biopsy practices in Australasia and examines how they align with the Australian guidelines, as well as international biopsy practice. Methods A cross-sectional, multiple-choice questionnaire was developed examining precautions prior to kidney biopsy; rationalisation of medications prior to kidney biopsy; technical aspects of kidney biopsy; complications of kidney biopsy; and indications for kidney biopsy. This was distributed to all members of the Australian and New Zealand Society of Nephrology (ANZSN). Results The response rate for this survey is approximately 21.4 % (182/850). Respondents found agreement (> 75.0 %) in only six out of the twelve questions (50.0 %) which assessed their practice against the KHA-CARI guidelines. Conclusions This is the first study of its kind where kidney biopsy practices are examined against a clinical guideline. Furthermore, responses showed that practices were incongruent with guidelines and that there was a lack of consensus on many issues.

MO228NATIVE KIDNEY BIOPSIES: DIAGNOCTIC VALUE AND COMPLICATIONS

Background and Aims Percutaneous renal biopsy is essential tool in nephrology but it is invasive procedure that can lead to complications, including gross hematuria, clinical significant haematoma and infection. The aim of the study was to determine the nature and incidence of PRB complications and the impact of biopsy results on treatment strategy. Method 82 patients (male – 42, female – 40) with a median age of 43.5 (Q1; Q3 – 34;71) years, BMI 26.4 (22.9; 30.6) were included in retrospective study of all native kidney biopsies performed at our institute from January 1, 2016 to December 31, 2019. An informed consent was mandatory in all patients. The indications for biopsies were nephrotic syndrome, 24-hour proteinuria ≥ 1g, nephritic syndrome, renal failure of unknown origin. The median duration of kidney disease was 9.5 (3.0; 26.6) months, serum creatinine level - 135 (87; 197) μmol/l, eGFR (CKD-EPI formula) – 52.9 (26.6; 83.7) ml/min/1.73 m2, 24-hour proteinuria – 2.8 (1.2; 5.4) g. All biopsies were percutaneous, ultrasound-guided and were performed under local anesthesia in prone position with a 16G needle. Medications that may increase bleeding risk (anticoagulants, antiplatelet agents, and nonsteroidal anti–inflammatory drugs) was stopped before PRB. Immediately after the biopsy, bed rest and vital signs monitoring was prescribed for 12 hours. In the absence of complications, a control kidneys ultrasound was performed 24 hours after biopsy; if complications were suspected, regarding to the local protocol. We prescribed prophylactic antibiotics to the patients with a hematoma volume > 100 ml. All biopsy specimens were sent to tertiary laboratory of renal pathology and evaluated by light and immunofluorescence (IF) microscopy; electron microscopy was not used in our study. Biopsy samples were considered satisfactory for diagnosis if they contained five or more glomeruli. Results Post-biopsy complications included gross hematuria – 19 of 82 (23.5%) patients, haematomas ≤ 100 ml – 17 (20.7%), haematomas > 100 ml – 8 (20.7%), pain in the puncture site requiring the administration of analgesics – 2 (2.4%). No death, infections, bladder obstruction or nephrectomy due to biopsy complications was registered. One (1.2%) patient required blood transfusion. We identified renal arteriovenous fistula which did not require special treatment in one (1.2%) patient 2 months after PRB. We found no differences in the incidence of post-biopsy haematomas by gender, age, or BMI. Haematomas were significantly more common in patients with higher mean blood pressure and serum creatinine levels (Fig.1, A, B). In one case (1.2%) the biopsy was inadequate. The results of PRB were varied, including unexpected findings. IgA nephropathy was found in 23 of 81 (28.4%) patients, focal segmental glomerulosclerosis – in 21 (25.9%), membranous nephropathy – in 9 (11.1%), pauci-immune crescentic glomerulonephritis – in 6 (7,4%), lupus nephritis – in 2 (2.4%), membranoproliferative glomerulonephritis – in 2 (2.4%) - one with polyclonal Ig+/C3+ on IF and one - with monoclonal IgG kappa+, C3 nephropathy – in 1 (1.2%), AL-amyloidosis – in 2 (2.4%), light chain deposit disease – in 1 (1.2%), hypertensive nephropathy – in 1 (1.2%), diabetic nephropathy – in 3 (3.7%), tubulointerstitial nephritis – 5 (6.2%), thrombotic microangiopathy – in 2 (2.4%), diffuse nephrosclerosis – in 2 (2.4%), renal tuberculosis – in 1 (1.2%). According to the results of the biopsy, pathogenetic treatment was first prescribed to 43 of 81 (53.1%) patients, changed – in 17 (21%), treatment remained unchanged – in 8 (9.9%) cases. Thirteen (16%) patients were referred for additional examination by a hematologist and rheumatologist. Conclusion Biopsy of native kidney is a high diagnostic value and safe procedure with a low risk of major complications. Treatment was changed significantly after biopsy in 74% of patients in our study.

Safety of Renal Biopsy by Physicians with Short Nephrology Experience

Percutaneous renal biopsy is an essential tool for diagnosing various renal diseases; however, little is known about whether renal biopsy performed by physicians with short nephrology experience is safe in Japan. This study included 238 patients who underwent percutaneous renal biopsy between April 2017 and September 2020. We retrospectively analyzed the frequency of post-renal biopsy complications (hemoglobin decrease of ≥10%, hypotension, blood transfusion, renal artery embolization, nephrectomy and death) and compared their incidence among physicians with varied experience in nephrology. After renal biopsy, a hemoglobin decrease of ≥10%, hypotension and transfusion occurred in 13.1%, 3.8% and 0.8% of patients, respectively. There were no cases of post-biopsy renal artery embolism, nephrectomy, or death. The composite complication rate was 16.0%. The incidence of post-biopsy complications was similar between physicians with ≥3 years and <3 years of clinical nephrology experience (12.5% vs. 16.8%, p = 0.64). Furthermore, the post-biopsy composite complication rates were similar between physicians with ≥6 months and <6 months of clinical nephrology experience (16.3% vs. 15.6%, p > 0.99). Under attending nephrologist supervision, a physician with short clinical nephrology experience can safely perform renal biopsy.

Major post-prostate biopsy complications under antibiotic augmentation prophylaxis protocol

Objective: To identify risk factors for major post-biopsy complications under augmented prophylaxis protocol. The risk factors already described mainly comprise outdated antibiotic prophylaxis protocols. Material and methods: This retrospective cohort study included patients that underwent transrectal ultrasound-guided biopsies, from 2011 to 2016. All patients had received antibiotic prophylaxis with ciprofloxacin and gentamicin. Patients were grouped according to the presence or absence of post-biopsy complications. Demographic variables and possible risk factors based on routine clinical assessment were registered. Correlation tests, univariate and multivariate analyses were used to identify risk factors for post-biopsy complications. Results: Of the 404 patients that were included, 25 (6.2%) presented 27 post-biopsy complications, distributed as follows: acute urinary retention ( n = 14, 3.5%), infections ( n = 11, 2.7%) and hemorrhage ( n = 2, 0.5%). On univariate analysis, patients who presented complications showed higher body mass index and post-voiding residual volumes. Multivariate analysis identified ethnicity and prostate-specific antigen (PSA) density as possible risk factors for biopsy complications. The presence of bacterial resistance identified by rectal swabs did not correlate with the incidence of complications and infections. Conclusions: Non-infectious post-biopsy complications were more frequent than infectious ones in this cohort. Higher post-voiding residual volumes and PSA density, that indicates prostate enlargement, were identified as risk factors and interpreted as secondary to bladder outlet obstruction. The higher body mass index and ethnicity were also identified as risk factors and attributed to the heterogeneity of the patients included. Level of evidence: Not applicable for this multicentre audit.

Risk factors for biopsy complications in initial versus subsequent biopsies in native and transplant kidneys

Background Few studies exist about risk factors for complications in subsequent biopsies. Purpose To explore risk factors for complications in initial versus subsequent biopsies in native and transplant kidneys, which may predict biopsy complications. Material and Methods In a multicenter study, 2830 native kidney biopsies (4.3% subsequent) were analyzed for major complications (1251 of these were also analyzed for minor) and 667 transplant kidney biopsies (29% subsequent) were analyzed for major and minor complications. No death or nephrectomy were described. Fisher’s exact test, Student’s t-test, chi-square analyses, and univariate and multiple binary logistic regression analyses were employed; P < 0.05 was considered significant. Results In initial native kidney biopsies, the frequency of major complications was higher in women compared to men (odds ratio 1.6, 95% confidence interval 1.1–2.2), in younger patients (50 vs. 54 years, P = 0.007), and in patients with lower weight (78 vs. 82 kg, P = 0.005). In subsequent native kidney biopsies, patients with major complications had a higher systolic blood pressure (145 vs. 132 mmHg, P = 0.03). In initial transplant kidney biopsies, biopsies with major complications had less glomeruli in the biopsy (17 vs. 24, P = 0.046). In subsequent transplant kidney biopsies, patients with major complications had a higher mean arterial pressure (112 vs. 98 mmHg, P = 0.002). In subsequent native kidney biopsies, there was a higher number of SLE-nephritis (12% vs. 4.6%, P = 0.001) compared to initial biopsies. Conclusion The different types of risk factors for complications in initial versus subsequent renal biopsies could be important for the clinicians to improve patients’ safety.