Pseudocapsule-Based Resection for Pituitary Adenomas via the Endoscopic Endonasal Approach

IntroductionThe endoscopic endonasal approach (EEA) is a safe and effective treatment for pituitary adenomas (PAs). Since extracapsular resection (ER) of PAs improves tumor resection and endocrine remission rates, the interface between the pseudocapsule and gland draws increasing attention. However, it is difficult to precisely dissect the tumor along the exact boundary, and complete removal of the tumor increases the risks of normal tissue damage and cerebrospinal fluid (CSF) leakage. In this study, we investigated the extracapsular resection as well as the pseudocapsule histology to evaluate the effectiveness and safety of pseudocapsule-related surgical interventions.MethodsFrom December 2017 to December 2019, 189 patients of PAs via EEA in our single center were analyzed retrospectively. The images, operative details, and clinical follow-up of patients were collected. Sixty-four patients underwent pseudocapsule-based ER, and 125 patients also underwent traditional intracapsular resection (IR) with or without intensive excision for FPAs. The clinical characteristics, tumor resection, endocrinological outcomes, and postoperative morbidities of the two groups were compared. Informed consent for publication of our article was obtained from each patient. Histological examination of pseudocapsule was performed using hematoxylin and eosin and reticulin staining.ResultsThe gross total recession was 62 (96.9%) in the ER group and 107 (85.6%) cases in the IR group, whereas the endocrine remission rate was 29/31 (93.5%) and 40/53 (75.5%) cases, respectively. Anterior pituitary functions were not aggravated postoperatively in any patient, but transient diabetes insipidus (DI) occurred more in the IR group (64.0%) than in ER (48.4%). Pseudocapsule specimens were obtained in 93 patients, and clusters of small cell aggregation were detected in 11 pseudocapsule specimens (11.8%) whereas other patients showed no remarkable developed pseudocapsule. Intraoperative CSF leak occurred more in the ER group (28.1%) than in the IR group (13.6%), but no difference was seen between two groups postoperatively. No case of intracranial hematoma or pituitary crisis occurred in both groups. After a mean follow-up of 22.8 months, tumor recurrence was observed in 4 (2.1%) cases.ConclusionPseudocapsule-based extracapsular resection of PAs via EEA is an effective and safe procedure to achieve complete resection with high and sustained endocrine remission and without deteriorating pituitary function.

Clinical and sonographic evaluation of the diaphragm after plication in adults with unilateral eventration: a retrospective study

Background We aim to assess the role of diaphragm ultrasonography in evaluating the outcome of surgical diaphragmatic plication in adults with symptomatic unilateral diaphragmatic eventration. Results Forty patients with symptomatic unilateral diaphragmatic eventration underwent surgical diaphragmatic plication between 2015 and 2020. The etiology was idiopathic in 34 (85%) cases, and 37 (92.5%) of them were suffering from dyspnea. Diaphragm ultrasonography showed no diaphragmatic movement on the affected side in 10 (25%) patients and a paradoxical movement in 30 (75%) patients. Surgical diaphragmatic plication was done successfully in all cases. Postoperative complications were reported in 3 (7.5%) cases, with no mortality. There was a highly significant improvement in dyspnea at 1 week and 6 months follow-up. CXR showed a highly significant decrease in the mean height of eventration at 1 week 3.7 ± 1.2 cm (P < 0.001), and 6 months 2.6 ± 0.9 cm (P < 0.001), compared to preoperative values (10.1 ± 2.8 cm). diaphragm ultrasonography showed normal motility of the plicated cupola in all cases, and there was a highly significant decrease in the mean height of eventration at 1 week (3.1 ± 1.1 cm, P < 0.001), and 6 months (2.3 ± 0.5 cm, P < 0.001) compared to preoperative values (10.3 ± 2.2 cm). There was a highly significant increase in the diaphragm thickness at 1 week (2.7 ± 0.3 mm, P < 0.001), and 6 months (2.9 ± 0.2 mm, P < 0.001), compared to the preoperative value. There was a highly significant improvement in the degree of excursion 1 week (25 ± 4.3 mm, P < 0.001), and 6 months (28 ± 5.2 mm, P < 0.001), compared to the preoperative value (15 ± 6.2 mm). No fluid collection or surroundings organ injuries were detected. The mean FVC and FEV1 showed a highly significant improvement at 1 week (66.7 ± 6%, 78.2 ± 9.8%), and 6 months (68.8 ± 5.7%, 80.4 ± 10.3%), compared to the preoperative value (58.8 ± 8% and 70.9 ± 10.3%). Conclusions Surgical diaphragmatic plication is an effective and safe procedure that can be performed to treat symptomatic adults with unilateral diaphragmatic eventration. Diaphragm ultrasonography can be used as a simple bedside test to evaluate unilateral diaphragmatic eventration cases and their postoperative follow-up.

Prospective evaluation of percutaneous hepatic perfusion with melphalan as a treatment for unresectable liver metastases from colorectal cancer

Purpose Percutaneous hepatic perfusion with melphalan (M-PHP) is increasingly used in patients with liver metastases from various primary tumors, yet data on colorectal liver metastases (CRLM) are limited. The aim of this study was to prospectively evaluate the efficacy and safety of M-PHP in patients with CRLM. Materials and methods Prospective, single-center, single-arm phase II study of M-PHP with hemofiltration in patients with unresectable CRLM. Proven, extrahepatic metastatic disease was one of the exclusion criteria. Primary outcomes were overall response rate (ORR) and best overall response (BOR). Secondary outcomes were overall survival (OS), progression-free survival (PFS), hepatic PFS (hPFS), and safety. Results A total of 14 M-PHP procedures were performed in eight patients between March 2014 and December 2015. All patients (median age 56 years, ranging from 46 to 68) had received (extensive) systemic chemotherapy before entering the study. The ORR was 25.0%, with two out of eight patients showing partial response as BOR. Median OS was 17.3 months (ranging from 2.6 to 30.9) with a one-year OS of 50.0%. Median PFS and hPFS were 4.4 and 4.5 months, respectively. No serious adverse events occurred. Grade 3/4 hematologic adverse events were observed in the majority of patients, though all were transient and well-manageable. Conclusion M-PHP is a safe procedure with only limited efficacy in patients with unresectable CRLM who already showed progression of disease after receiving one or more systemic treatment regimens.

Effect of autologous platelet rich plasma on anti-mullerian hormone and antral follicle count in sub fertile women with poor ovarian reserve

Background: Ovarian aging may be reversible. Platelet rich plasma (PRP) has growth factors that promote cellular proliferation and folliculogenesis. Recently published studies and case reports suggest that ovarian rejuvenation can be done by PRP treatment. The objective of the study was to evaluate the effect of platelet rich plasma on ovarian reserve markers such as anti mullerian hormone (AMH) and antral follicle count (AFC) in sub fertile women with poor ovarian reserve (POR).Methods: The self-controlled quasi experimental study was carried out on 29 sub fertile women with poor ovarian reserve. They were selected for laparoscopic tubo-peritoneal evaluation as they could not afford in vitro fertilization. During laparoscopy, 5 ml of pre prepared autologous PRP was injected into each ovary. Post-PRP AMH and AFC were measured at every cycle for a period of at least three (3) months and compared with base line values.Results: Mean age of participants was 35.9±3.2 years. Baseline AMH was 0.31±0.17 ng/ml and baseline AFC was 3.41±0.73. AMH was raised on first, second and third cycle from base line values in 58.62%, 86.21% and 91.30% of the study population respectively. AMH changes in all three cycle were statistically significant. Pregnancy occurred in three (10.34%) women during the study period.Conclusions: The injection of autologous PRP into human ovaries is a safe procedure to improve ovarian reserve markers (AMH and AFC) in women with POR.

Arthroscopic remplissage is safe and effective: clinical and magnetic resonance results at a minimum 3 years of follow-up

Background Large Hill–Sachs lesions are considered a risk factor for recurrence of instability after arthroscopic Bankart repair alone. The aim of this study was to demonstrate that remplissage is a safe procedure that effectively reduces the risk of recurrent dislocations without causing fatty degeneration of the infraspinatus at medium-term follow-up. Methods Patients who underwent arthroscopic Bankart repair and remplissage with a minimum 3 years of follow-up were included. Constant–Murley (CMS), American Shoulder and Elbow Surgeons (ASES), and Walch–Duplay scores were evaluated. Magnetic resonance imaging (MRI) was performed to detect the appearance of fatty infiltration inside the infraspinatus muscle, the percentage of the Hill–Sachs lesion filled by the tendon and its integration, and the onset of rotator cuff tears. Results Thirteen patients (14 shoulders) with a mean follow-up of 55.93 (± 18.16) months were enrolled. The Walch–Duplay score was 95.00 [87.25–100.00], with a return to sport rate of 100%. Both the CMS and the ASES indicated excellent results. The affected shoulders showed a statistically significant reduction in active external rotation both with the arm at the side (ER1) and with the arm at 90° of abduction (ER2) (p = 0.0005 and p = 0.0010, respectively). A reduction in infraspinatus isometric strength was found for both ER1 and ER2, but this reduction was only statistically relevant in ER2 (p = 0.0342). There was a traumatic recurrence of instability in two cases (14.28%). MRI evaluation demonstrated an absence of adipose infiltration in 50% of cases and only a minimal amount in the remaining 50%. In 12 cases (85.72%), the capsulotenodesis completely filled the lesion and good tendon–bone integration was observed. Conclusion Arthroscopic remplissage provided successful clinical outcomes without fatty infiltration of the infraspinatus and with good healing of the tissues. The low risk of recurrence was associated with an objective limitation on active external rotation, but this did not influence the patients' daily or sports activities. Level of evidence: Cohort study, level of evidence 3.

The Current Role of Parathyroid Fine-Needle Biopsy (P-FNAB) with iPTH-Washout Concentration (iPTH-WC) in Primary Hyperparathyroidism: A Single Center Experience and Literature Review

Introduction. Primary hyperparathyroidism (PHPT) is a condition characterized by disorders of calcium–phosphate metabolism and bone metabolism caused by pathological overproduction of parathyroid hormone (PTH). The diagnosis of overt PHPT is based on the presence of clinical symptoms and laboratory abnormalities typical of this condition: hypercalcemia, hypercalciuria and elevated iPTH levels. Imaging studies are not used for diagnostic purposes; they are performed to localize the parathyroid glands prior to potential surgical treatment. Technetium 99 m sestamibi scintigraphy (Tc99 m-MIBI) is the gold standard in the assessment of pathologically altered parathyroid glands. Other diagnostic options include cervical ultrasound (US), computed tomography (CT), magnetic resonance imaging (MRI) and positron emission tomography (PET). Parathyroid biopsy (P-FNAB) with iPTH washout concentration (iPTH-WC) assessment is still an underestimated method of preoperative parathyroid gland localization. Few studies have reported the utility of US-guided P-FNAB in preoperative assessment of parathyroid lesions. The aim of the study was to present our experience with 143 P-FNAB with iPTH-WC assessment. Material and methods. Laboratory results, US findings, P-FNAB complications and comparison with other imaging techniques were described and analyzed. Results. In 133 (93.0) patients, iPTH washout-to-serum ratio exceeded threshold level 0.5 and were classified as positive results. Median iPTH-WC in this group was 16,856 pg/mL, and the iPTH-WC to serum iPTH ratio was 158. There was no correlation between iPTH-WC and serum PTH, serum calcium, parathyroid gland volume and shape index. In the group of 46 operated patients, 44 demonstrated positive iPTH-WC results, which corresponds to a sensitivity of 95.6%. In Tc99-MIBI, radiotracer retention was found in 17 cases (in 24 MIBI performed), which corresponds to a sensitivity of 52.2%. P-FNAB did not cause any major side effects −92.5% of all patients had no or mild adverse events after this procedure. Conclusions. P-FNAB with iPTH-WC is a reliable method in parathyroid adenoma localization during PHPT. Its sensitivity for diagnosis of PHPT is much higher than that of Tc99-MIBI, and in some situations, P-FNAB with iPTH-WC may even replace that method. Furthermore, cost-effectiveness of iPTH-WC is at least similar to that of Tc99-MIBI. Complications of P-FNAB are mild and we can describe this method as a safe procedure.

Video-Assisted Thoracoscopy for Vertebral Body Tethering of Juvenile and Adolescent Idiopathic Scoliosis: Tips and Tricks of Surgical Multidisciplinary Management

VATS (video assisted thoracoscopic surgery) is routinely and successfully performed in minor and major complex thoracic procedures. This technique has been recently introduced for the treatment of severe forms of idiopathic scoliosis (IS) with the aim to repair the deformity, reduce morbidity and to prevent its progression in patients with skeletal immaturity. This study aims to present VATS in anterior vertebral body tethering (AVBT) approach to support the pediatric orthopedic surgeons during vertebral body fixation. Surgical and anesthesiologic tips and tricks are reported to assure a safe procedure. The study includes preadolescents with IS and a grade of scoliosis >40° that had a high probability of deterioration due to remaining growth (December 2018 to April 2021). Skeletal immaturity of enrolled patients was assessed by Sanders classification and Risser sign. Patients had a Risser score between 0 and 1 and a Sanders score >2 and <5. AVBT technique using VATS was performed by a senior pediatric surgeon assisting the pediatric orthopedic surgeon. Twenty-three patients have been submitted to VATS AVBT in the period of study (age range 9–14 years). The patients had a classified deformity Lenke 1A or B convex right and all types of curves were treated. In all patients, the vertebrae submitted to tethering surgery ranged from D5 to D12; mean curve correction was 43%. Three postoperative complications occurred: one late postoperative bleeding requiring a chest tube positioning on 12th postoperative day; one screw dislodged and needed to be removed; one child showed worsening of the scoliosis and needed a posterior arthrodesis. Initial results of VATS AVBT in growing patients with spinal deformities are encouraging. An appropriate selection of patients and a pediatric dedicated multidisciplinary surgical approach decrease intraoperative complications, time of operation and postoperative sequelae and guarantee an optimal outcome.

Reducing VNS stimulation parameters: is it safe?

Introduction Vagal nerve stimulation (VNS) is an adjuvant therapy used in the treatment of patients with refractory epilepsy who are not candidates for resective surgery or who have limited results after surgical procedures. Currently, there is enough evidence to support its use in patients with various types of epilepsy. Therefore, the present study was conducted to explore the possibility of optimizing therapy by reducing the consumption of the system's battery. Methods The prospective and double-blind analysis consisted in the evaluation of 6 patients submitted to VNS implantation for 3 months, followed by adjustment of the stimulation settings and continuity of follow-up for another month. The standard protocol was replaced by another with a frequency value of 20 Hz instead of 30 Hz to increase battery life. The safety of this procedure was evaluated through the assessment of two main variables: seizures and side effects. Results The stimulation at 20 Hz showed 68% reduction in the incidence of seizures (p = 0.054) as well as low incidence of side effects. Conclusion The present study suggests that the reduction of the stimulation frequency from 30 to 20 Hz is a safe procedure, and it does not compromise the effectiveness of therapy.

Bleeding hepatico-cutaneous fistula: Unusual complication of the percutaneous liver biopsy

Introduction. Arteriovenous fistula is one of the complications that can occur during percutaneous liver biopsy. Hepatic arterio-venous fistula with chronic bleeding from the puncture site on the skin is extremly rare complication following percutaneous liver biopsy. Case report. The case represents a 35-year-old woman with secondary anemia caused by chronic bleeding at the site of a granuloma caused by a previous liver biopsy done 7 years ago. The patient was examined and treated for several years due to anemic syndrome. The pathological communication between the right hepatic vein, the anterior sectional branch of the portal vein and the posterior arterial sectional branch was detected on a CT scan, and proven by fistulography. Due to the failed embolization, a laparotomy was performed, where a tumor mass was found in the VI and VII segment of the liver, which communicates with the skin. Tumor mass was removed by atypical resection of VI and VII liver segments. Due to hemorrhage, re-exploration was performed, where bleeding was found from the surface of the resected liver parenchyma. Two weeks after the last operation, the patient was released for home treatment. Conclusion. Although percutaneous liver biopsy is a safe procedure, the complication in the form of bleeding occurs in less than 25% of cases and with spontaneous cessation. In our presentation, there was a complicated intrahepatic arteriovenous-portal fistula with the formation of communication with the puncture site on the skin. This is the first case of complications of this type after percutaneous liver biopsy.

Computed tomography lymphangiography via intrametatarsal pad injection is feasible in cats with chylothorax

OBJECTIVE To evaluate the feasibility of CT lymphangiography via intrametatarsal pad injection in cats with chylothorax. ANIMALS 7 client-owned cats. PROCEDURES This was a multicenter, retrospective, descriptive study. Medical records and imaging data from 4 veterinary hospitals were reviewed to identify cats with chylothorax that had undergone intrametatarsal pad injection via CT lymphangiography. In total, 7 client-owned cats were included in the study. Signalment, history, image findings, and follow-up data were recorded. Descriptive statistics were used to analyze the success rate of thoracic duct (TD) enhancement and describe relevant clinical findings. RESULTS Enhancement of TDs was successful in 6 of the 7 cats within 5 to 15 minutes after initiating intrametatarsal pad injection under general anesthesia. Successful migration of contrast medium into the lymphatic vessels cranial to the popliteal lymph nodes was observed in all cats within 5 minutes after injection. The recommended dose of contrast medium to achieve TD enhancement was 1 mL/kg (0.5 mL/kg/pad; concentration, 350 mg of iodine/kg). Only 1 cat had mild swelling of the paws after the procedure, and it recovered quickly without pain medication; no cats experienced lameness. Similar to dogs and unlike in previously published reports, 72% of TD branches were located in the right hemithorax. CLINICAL RELEVANCE CT lymphangiography via intrametatarsal pad injection is a feasible and safe procedure for cats with chylothorax. This technique provides detailed information regarding the unique TD anatomy and cisterna chyli location. It also contributes to surgical planning.