INTRODUCTION

Hysteroscopy is the gold standard procedure for the evaluation and diagnosis of intrauterine pathologies. The optimal time to do hysteroscopy is during the proliferative phase. However, for women with irregular bleeding, the optimal time is unpredictable. Besides pharmacological means, mechanical endometrial preparation could be done.

The objective of this study was to determine the effect of suction curettage on visualization, operative time, fluid deficit, and histopathologic diagnosis among perimenopausal women with abnormal uterine bleeding (AUB) and unprepared endometrium prior to operative hysteroscopy.

Thirty-four (34) perimenopausal women admitted for AUB with unprepared endometrium for operative hysteroscopy who consented to participate were recruited and randomly divided into two groups: 18 women had suction curettage done prior to operative hysteroscopy and 16 women had operative hysteroscopy done alone. The following data were obtained for each group: (1) improvement in clarity (i.e., visualization of fundus and both tubal ostia), (2) operative time from entry to withdrawal of the resectoscope (measured in minutes), (3) fluid deficit, and (4) final histopathological diagnosis. P 

Women who underwent suction curettage prior to operative hysteroscopy had improved visualization (72.2%, P < 0.001), shorter operative time (29.06 ± 7.06 min vs. 35.5 ± 7.2 min, P = 0.013), no difference in fluid deficit (P = 0.276), and the histopathologic diagnosis (P = 0.470).

Suction curettage prior to operative hysteroscopy among perimenopausal women with AUB and unprepared endometrium improved visualization and shortened operative time without affecting fluid deficit and histopathologic diagnosis.

Anastomosis, Surgical ; Anastomotic Leak ; Humans ; Neoadjuvant Therapy ; Rectal Neoplasms/surgery* ; Rectum/surgery* ; Retrospective Studies ; Suction ; Therapeutic Irrigation

Anastomosis, Surgical ; Anastomotic Leak/surgery* ; Drainage ; Gastrectomy ; Humans ; Suction

OBJECTIVES: To study the feasibility of tracheal intubation for meconium suction immediately after birth of nonvigorous neonates born through meconium-stained amniotic fluid (MSAF). METHODS: A retrospective cohort study was performed on nonvigorous neonates born through MSAF who were admitted to the Department of Neonatology, Zhecheng People's Hospital. The neonates without meconium suction who were admitted from July 1, 2017 to June 30, 2018 were enrolled as the control group. The neonates who underwent meconium suction from July 1, 2018 to June 30, 2019 were enrolled as the suction group. The two groups were compared in terms of the mortality rate and the incidence rates of neonatal meconium aspiration syndrome (MAS), persistent pulmonary hypertension of the newborn, pneumothorax, and pulmonary hemorrhage. RESULTS: There were 80 neonates in the control group and 71 in the suction group. There were no significant differences between the two groups in the incidence rates of MAS (11% vs 7%), persistent pulmonary hypertension of the newborn (5% vs 4%), pneumothorax (3% vs 1%), and death (0% vs 1%). Compared with the control group, the suction group had a significantly lower proportion of neonates requiring oxygen inhalation (16% vs 33%, P<0.05), noninvasive respiratory support (25% vs 41%, P<0.05) or mechanical ventilation (10% vs 23%, P<0.05) and significantly shorter duration of noninvasive ventilation [(58±24) hours vs (83±41) hours, P<0.05] and length of hospital stay [6(4, 8) days vs 7(5, 10) days, P<0.05]. CONCLUSIONS Although tracheal intubation for meconium suction immediately after birth may shorten the duration of respiratory support for mild respiratory problems, it cannot reduce the incidence rate of MAS, mortality rate, or the incidence rate of serious complications in nonvigorous infants born through MSAF.
Amniotic Fluid ; Humans ; Infant ; Infant, Newborn ; Intubation, Intratracheal ; Meconium ; Meconium Aspiration Syndrome/therapy* ; Retrospective Studies ; Suction

Objective: To introduce a new self-developed irrigation device(SID) that does not employ a sheath or an irrigation-suction system and evaluate to its efficiency in transcanal endoscopic ear surgery (TEES) for attic cholesteatoma. Methods: 38 patients who were subjected to TEES for attic cholesteatoma between October 2019 to June 2021 were included in this study, including 17 males and 21 females with an average age of (38.6±11.9) years. SID and underwater continuous drilling were used during operation. Width of endoscope and irrigation speed were measured when SID was applied. The operating time, surgical view and complications were compared between two groups. Results: The width of the endoscope was 3.5-4.6 mm in diameter and the irrigation speed was 20-40 ml/min when SID was used. SID cleaned the lens at the tip of the endoscope and created a clear field of view during TEES. The operation time was (86.6±18.1) min. The skin of the external ear canal was found injured during operation in 3 patients, but there were no complications such as necrosis of the flap, stenosis of external ear canal, sensorineural hearing loss, facial paralysis and cerebrospinal fluid leakage. Conclusions: SID is simple and enhances the efficacy of TEES, providing a new irrigation choice in TEES for attic cholesteatoma.
Humans ; Male ; Female ; Adult ; Middle Aged ; Cholesteatoma, Middle Ear/surgery* ; Suction ; Sudden Infant Death ; Otologic Surgical Procedures ; Ear, Middle/surgery*

According to the actual requirements of pediatric intensive care, a suction detection system of pediatric oral secretions integrated with monitoring function is designed. The system has the function of adjustable intermittent attraction. The duration and proportion of intermittent attraction can be adjusted according to the individualized needs of pediatric intensive care. The suction head of pacifier can reduce the mechanical damage to pediatric oral mucosa as much as possible. Meanwhile, the system can detect and monitor the real-time biochemical indexes of the collected oral secretions, which can be used to help the judgement of aspiration and quantitatively evaluate the microcirculation dysfunction.
Bodily Secretions ; Child ; Humans ; Mouth ; Suction/instrumentation*

Endotracheal suctioning is a most frequent invasive procedure in neonates undergoing mechanical ventilation. The procedure includes the patient preparation, airway suctioning and follow-up care, which may associated with adverse events. Based on the Grading of Recommendations Assessment, Development and Evaluation (GRADE), as well as the related research both in China and overseas, the clinical practice guidelines of endotracheal suctioning in neonates with mechanical ventilation is developed in order to promote the standard implementation of this operation and ensure patients' safety.
China ; Humans ; Infant, Newborn ; Intubation, Intratracheal ; Respiration, Artificial ; Suction ; Trachea

Coronary disease is one of the highest mortality diseases in the world,and interventional therapy has been the best treatment choice for its low risks,high efficiency,less wound and rapid recovery after the operation.Thrombus aspiration catheter is one of the most important equipment in the interventional therapy instrument of coronary disease.This paper is based on the demand of clinical and market,designed and manufactured aspirated catheter for the treatment of coronary thrombosis.Through the performance comparison of the material,confirmed the main material quality of thrombus aspiration catheter and its organization.We also made the appraisement for the function of the material and the main performance of the thrombus aspiration catheter.The experiment turned out that our catheter performance is stable and also with highly reliable,which is absolutely fit for the using requirements of the clinical.
Catheters ; Coronary Angiography ; Coronary Thrombosis ; therapy ; Humans ; Suction ; Thrombectomy ; instrumentation ; Treatment Outcome

A motion unit for sucking robot with a stable motion, convenient operation and process simulation is introduced. The key parameters and process data of the sucking operation were obtained from the clinical work, which provided the basis for the design of the sucking robot motion unit. According to the points of sucking action, robotic thumb, forefinger and metacarpophalangeal joints were used to grip the suction tube, and the servo and arm structure were used to simulate the motion of the wrist and elbow to complete the rotation and push of the sputum suction tube. The feasibility is verified through the advanced sputum suction training model. The movement unit is stable in movement, and can smoothly complete the clamping, feeding, back off protection and rotating tube removal of the sputum suction tube, so as to achieve effective sputum suction.
Catheterization ; Intubation, Intratracheal ; Robotics ; Suction

The rotary left ventricular assist device (LVAD) has been an effective option for end-stage heart failure. However, while clinically using the LVAD, patients are often at significant risk for ventricular collapse, called suction, mainly due to higher LVAD speeds required for adequate cardiac output. Some proposed suction detection algorithms required the external implantation of sensors, which were not reliable in long-term use due to baseline drift and short lifespan. Therefore, this study presents a new suction detection system only using the LVAD intrinsic blood pump parameter (pump speed) without using any external sensor. Three feature indices are derived from the pump speed and considered as the inputs to four different classifiers to classify the pumping states as no suction or suction. The results using a combined human circulatory system and LVAD model show that the proposed method can detect ventricular suction effectively, demonstrating that it has high classification accuracy, stability, and robustness. The proposed suction detection system could be an important part in the LVAD for detecting and avoiding suction, while at the same time making the LVAD meet the cardiac output demand for the patients. It could also provide theoretical basis and technology support for designing and optimizing the control system of the LVAD.
Computer Simulation ; Heart Failure ; surgery ; Heart Ventricles ; Heart-Assist Devices ; adverse effects ; Humans ; Models, Cardiovascular ; Suction ; adverse effects